Thermohygrostat test chamber

Abstract

The utility model discloses a temperature and humidity test case, including the isolation box, water tank, circulating fan, third pipeline, fourth pipeline, fifth pipeline and stop valve. The temperature and humidity test case, the water tank is fixedly connected in the electrical box, a plurality of electric heaters are fixedly installed on the water tank, the circulating fan is fixedly installed in the electrical box, the air inlet end of circulating fan is communicated with the isolation box through the third pipeline, the air outlet end of circulating fan is fixedly connected with the fourth pipeline, and the fourth pipeline inserts the bottom inboard of water tank, and the top of water tank is communicated with the isolation box through the fifth pipeline, and the fifth pipeline is installed with stop valve, and the air in the isolation box is circulated through the circulating fan cooperation third pipeline, fourth pipeline and fifth pipeline, and the air is washed by the water liquid in the water tank in the circulation process, thereby increasing humidity. The water liquid in the water tank is close to the temperature in the isolation box, thereby making the temperature not obvious fluctuation when humidifying.

Description

Technical Field

[0001] This utility model relates to the field of temperature and humidity testing technology, specifically a temperature and humidity testing chamber. Background Technology

[0002] A temperature and humidity calibration chamber is a device used to calibrate and test temperature and humidity sensors, instruments, or equipment. It is widely used in various industries, including meteorology, environmental monitoring, food processing, pharmaceuticals, warehousing, and logistics, to ensure the accuracy and reliability of environmental data.

[0003] When using a temperature and humidity calibration chamber, it is necessary to introduce humid air or atomized water vapor when adjusting the humidity. Directly introducing humid air into the temperature and humidity calibration chamber can easily cause a rapid change in the internal temperature of the chamber. Therefore, a new temperature and humidity calibration chamber is proposed to optimize the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a temperature and humidity calibration chamber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A temperature and humidity calibration chamber includes an electrical box. An isolation box is fixedly installed on the top surface of the electrical box. The front of the isolation box has a door. Both the door and the inner wall of the isolation box are embedded with heat-conducting plates. The heat-conducting plates have flow channels, which are interconnected by pipes. A water tank is fixedly connected inside the electrical box. The outlet of the flow channel is connected to the water tank through a first pipe, and the inlet of the flow channel is connected to the outlet of the water tank through a second pipe. A pump body is connected to the second pipe and is fixedly connected to the side wall of the water tank. A circulating fan is fixedly installed inside the electrical box. The inlet of the circulating fan is connected to the isolation box through a third pipe, and the outlet of the circulating fan is fixedly connected to a fourth pipe. The fourth pipe is inserted into the bottom of the water tank, and the top of the water tank is connected to the isolation box through a fifth pipe. A shut-off valve is installed on the fifth pipe.

[0007] As a further embodiment of this utility model: an atomizing bottle is fixedly connected inside the electrical box, an atomizer is provided inside the atomizing bottle, a bottle stopper is fixedly installed at the top opening of the atomizing bottle, a three-way valve is installed on the fourth pipe, a sixth connecting pipe is fixedly connected to the third port of the three-way valve, the sixth connecting pipe passes through the bottle stopper and is inserted into the atomizing bottle, a seventh connecting pipe is also fixedly connected through the bottle stopper, the seventh connecting pipe is inserted into the water tank and fixedly connected to a coil, the top end of the coil extends to the top of the water tank.

[0008] As a further embodiment of this utility model: multiple temperature and humidity sensors are fixedly installed inside the isolation box, a control host is fixedly installed on the side wall of the isolation box, and multiple electric heaters are fixedly installed on the water tank. The control method is automatic control through the control host. The control circuit of the control host can be implemented by simple programming by those skilled in the art, which is common knowledge in the art. The control host can set the temperature and control the electric heaters through the monitoring feedback of the temperature and humidity sensors. At the same time, the control host can control the operation of the pump, circulating fan, atomizer, three-way valve, temperature and humidity sensor, electric heater and shut-off valve.

[0009] As a further improvement of this utility model: the top surface of the water tank is provided with a filling port, and a cover is connected to the filling port, so that liquid can be added through the filling port.

[0010] As a further improvement of this utility model: two inclined rearward guide rails are symmetrically fixedly installed on the inner bottom of the isolation box, and a matching slide groove is slidably connected on the guide rail, and a horizontally set placement platform is fixedly connected to the top surface of the slide groove.

[0011] As a further embodiment of this utility model: a limiting pin is fixedly connected inside the slide groove, and a limiting groove adapted to the limiting pin is provided on the guide rail. The limiting pin is inserted into the limiting groove and slidably connected. Through the cooperation of the limiting pin and the limiting groove, the slide groove is prevented from slipping off the guide rail. The guide rail and the slide groove are inclined to match each other, so that they can slide down naturally under the action of gravity, allowing the placement platform to enter the isolation box.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a circulating fan in conjunction with the third, fourth, and fifth pipes to circulate the air inside the isolation chamber. During the circulation process, the air is washed by water in the water tank, thereby increasing the humidity. The water in the tank is already close to the temperature inside the isolation chamber, thus preventing significant temperature fluctuations during humidification.

[0014] 2. This utility model atomizes the water in the atomizing bottle using an atomizer. By switching the three-way valve, circulating air passes through the atomizing bottle, which in turn carries out the atomized water vapor, improving the humidification effect. At this time, the air carrying the weapon can exchange heat with the water in the water tank through the coil, thereby facilitating the maintenance of a stable airflow temperature inside the isolation box.

[0015] 3. This utility model features a pull-out placement platform for the isolation box, making it convenient to place the products to be inspected into the isolation box. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the temperature and humidity calibration chamber.

[0017] Figure 2 This is a side view of the temperature and humidity calibration chamber.

[0018] Figure 3 This is a front view of the temperature and humidity calibration chamber.

[0019] Figure 4 This is a diagram showing the installation of the platform inside the temperature and humidity calibration chamber.

[0020] In the diagram: 1. Electrical box; 2. Isolation box; 3. Box door; 4. Heat-conducting plate; 5. Flow channel; 6. Water tank; 7. First pipe; 8. Second pipe; 9. Pump body; 10. Circulating fan; 11. Third pipe; 12. Fourth pipe; 13. Fifth pipe; 14. Atomizing bottle; 15. Atomizer; 16. Bottle stopper; 17. Three-way valve; 18. Sixth connecting pipe; 19. Seventh connecting pipe; 20. Coil; 21. Temperature and humidity sensor; 22. Control host; 23. Electric heater; 24. Filling port; 25. Guide rail; 26. Slide groove; 27. Placement platform; 28. Limit pin; 29. ​​Limit groove; 30. Shut-off valve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 In this embodiment of the present invention, the temperature and humidity calibration box includes an electrical box 1, an isolation box 2 fixedly installed on the top surface of the electrical box 1, a door 3 on the front side of the isolation box 2, heat-conducting plates 4 embedded in the inner walls of both the door 3 and the isolation box 2, flow channels 5 within the heat-conducting plates 4, and the flow channels 5 within the heat-conducting plates 4 interconnected by pipes, a water tank 6 fixedly connected inside the electrical box 1, the outlet end of the flow channel 5 connected to the water tank 6 via a first pipe 7, the inlet end of the flow channel 5 connected to the outlet end of the water tank 6 via a second pipe 8, a pump body 9 connected to the second pipe 8, the pump body 9 fixedly connected to the side wall of the water tank 6, a circulating fan 10 fixedly installed inside the electrical box 1, the inlet end of the circulating fan 10 connected to the isolation box 2 via a third pipe 11, the outlet end of the circulating fan 10 fixedly connected to a fourth pipe 12, the fourth pipe 12 inserted into the bottom inner side of the water tank 6, the top of the water tank 6 connected to the isolation box 2 via a fifth pipe 13, and a shut-off valve 30 installed on the fifth pipe 13.

[0023] The water in the water tank 6 is heated by the electric heater 23, and the interior of the isolation box 2 is heated by the pump body 9 in conjunction with the first pipe 7 and the second pipe 8. The air in the isolation box 2 is circulated by the circulating fan 10 in conjunction with the third pipe 11, the fourth pipe 12 and the fifth pipe 13. During the circulation process, the air is washed by the water in the water tank 6, thereby increasing the humidity.

[0024] The air inside the isolation chamber 2 is circulated by a circulating fan 10 in conjunction with the third pipe 11, the fourth pipe 12, and the fifth pipe 13. During the circulation process, the air is washed by the water in the water tank 6, thereby increasing the humidity. The water in the water tank 6 is at a temperature close to that inside the isolation chamber 2, thus preventing significant temperature fluctuations during humidification.

[0025] The electrical box 1 is also fixedly connected to an atomizing bottle 14, which contains an atomizer 15. A bottle stopper 16 is fixedly installed at the top opening of the atomizing bottle 14. A three-way valve 17 is installed on the fourth pipe 12. A sixth connecting pipe 18 is fixedly connected to the third port of the three-way valve 17. The sixth connecting pipe 18 passes through the bottle stopper 16 and is inserted into the atomizing bottle 14. A seventh connecting pipe 19 is also fixedly connected through the bottle stopper 16. The seventh connecting pipe 19 is inserted into the water tank 6 and is fixedly connected to a coil 20. The top end of the coil 20 extends to the top of the water tank 6.

[0026] The water in the atomizing bottle 14 is atomized by the atomizer 15. By switching the three-way valve 17, the circulating air passes through the atomizing bottle 14, thereby carrying out the atomized water vapor and improving the humidification effect. At this time, the air carrying the weapon can exchange heat with the water in the water tank 6 through the coil 20, so as to facilitate the maintenance of a stable airflow temperature inside the isolation box 2.

[0027] Multiple temperature and humidity sensors 21 are fixedly installed inside the isolation box 2. A control host 22 is fixedly installed on the side wall of the isolation box 2. Multiple electric heaters 23 are fixedly installed on the water tank 6. The control method is automatic control through the control host 22. The control circuit of the control host 22 can be implemented by simple programming by those skilled in the art and is common knowledge in the art. The control host 22 can set the temperature and control the electric heaters 23 through the monitoring feedback of the temperature and humidity sensors 21. At the same time, the control host 22 can control the operation of the pump body 9, the circulating fan 10, the atomizer 15, the three-way valve 17, the temperature and humidity sensors 21, the electric heaters 23 and the shut-off valve 30.

[0028] The top surface of the water tank 6 is provided with a filling port 24, and a cover is connected to the filling port 24, through which liquid can be added.

[0029] Two inclined rearward guide rails 25 are symmetrically fixedly installed on the inner bottom of the isolation box 2. The guide rails 25 are slidably connected with matching grooves 26. The top surface of the grooves 26 is fixedly connected to a horizontally set placement platform 27.

[0030] A limiting pin 28 is fixedly connected inside the slide 26. A limiting groove 29 adapted to the limiting pin 28 is provided on the guide rail 25. The limiting pin 28 is inserted into the limiting groove 29 and slidably connected. Through the cooperation of the limiting pin 28 and the limiting groove 29, the slide 26 is prevented from slipping off the guide rail 25. The guide rail 25 and the slide 26 are inclined to match each other, so that they can slide down naturally under the action of gravity, allowing the placement platform 27 to enter the isolation box 2.

[0031] The placement platform 27 of the isolation box 2 can be pulled out, making it convenient to put the products that need to be inspected into the isolation box 2.

[0032] The working principle of this utility model is as follows:

[0033] In operation, the main control unit 22 controls the operation of the pump body 9, temperature and humidity sensor 21, and electric heater 23. The electric heater 23 heats the water in the water tank 6, and the pump body 9, in conjunction with the first pipe 7 and the second pipe 8, circulates the water. The circulating water exchanges heat with the heat-conducting plate 4 in the flow channel 5, thereby heating the interior of the isolation chamber 2. During heating, the temperature and humidity sensor 21 monitors the temperature inside the isolation chamber 2, and the temperature control program inside the main control unit 22 controls the operation of the electric heater 23 to achieve temperature control. At the same time, the temperature and humidity sensor 21 monitors the humidity inside the isolation chamber 2. The main control unit 22 controls the shut-off valve 30 to open and controls the circulating fan 10 to operate. It further controls the three-way valve 17 to connect the fifth pipe 13. The circulating fan 10, in conjunction with the third pipe 11, the fourth pipe 12, and the fifth pipe 13, circulates the air inside the isolation chamber 2. During the circulation process, the air is washed by the water in the water tank 6, thereby increasing the humidity. The water in water tank 6 is at a temperature close to that inside isolation chamber 2, so the temperature does not fluctuate significantly during humidification. The main control unit 22 controls the three-way valve 17 to connect the fifth pipe 13 and the sixth connecting pipe 18, thereby connecting the circulating fan 10 and the atomizing bottle 14. The atomizer 15 is then activated to atomize the water in the atomizing bottle 14, allowing the circulating air to pass through the atomizing bottle 14 and carry out the atomized water vapor, thus improving the humidification effect. At this time, the air carrying the weapon can exchange heat with the water in water tank 6 through the coil 20, which helps to maintain a stable temperature of the airflow entering the isolation chamber 2.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A temperature and humidity calibration chamber, including an electrical box (1), characterized in that: An isolation box (2) is fixedly installed on the top surface of the electrical box (1). A door (3) is provided on the front side of the isolation box (2). A heat-conducting plate (4) is embedded in the inner wall of both the door (3) and the isolation box (2). A flow channel (5) is provided in the heat-conducting plate (4). The flow channels (5) in the heat-conducting plate (4) are interconnected by pipes. A water tank (6) is fixedly connected inside the electrical box (1). The water outlet of the flow channel (5) is connected to the water tank (6) through a first pipe (7). The water inlet of the flow channel (5) is connected to the water outlet of the water tank (6) through a second pipe (8). A pump body (9) is connected to the channel (8). The pump body (9) is fixedly connected to the side wall of the water tank (6). A circulating fan (10) is fixedly installed in the electrical box (1). The air inlet of the circulating fan (10) is connected to the isolation box (2) through the third pipe (11). The air outlet of the circulating fan (10) is fixedly connected to the fourth pipe (12). The fourth pipe (12) is inserted into the bottom inside of the water tank (6). The top of the water tank (6) is connected to the isolation box (2) through the fifth pipe (13). A shut-off valve (30) is installed on the fifth pipe (13).

2. The temperature and humidity calibration chamber according to claim 1, characterized in that: The electrical box (1) is also fixedly connected to an atomizing bottle (14), which is equipped with an atomizer (15). A bottle stopper (16) is fixedly installed at the top opening of the atomizing bottle (14). A three-way valve (17) is installed on the fourth pipe (12). A sixth connecting pipe (18) is fixedly connected to the third port of the three-way valve (17). The sixth connecting pipe (18) passes through the bottle stopper (16) and is inserted into the atomizing bottle (14). A seventh connecting pipe (19) is also fixedly connected through the bottle stopper (16). The seventh connecting pipe (19) is inserted into the water tank (6) and is fixedly connected to a coil (20). The top end of the coil (20) extends to the top of the water tank (6).

3. The temperature and humidity calibration chamber according to claim 1, characterized in that: Multiple temperature and humidity sensors (21) are fixedly installed inside the isolation box (2), a control host (22) is fixedly installed on the side wall of the isolation box (2), and multiple electric heaters (23) are fixedly installed on the water tank (6).

4. The temperature and humidity calibration chamber according to claim 1, characterized in that: The top surface of the water tank (6) is provided with a filling port (24), and a cover is connected to the filling port (24).

5. The temperature and humidity calibration chamber according to claim 1, characterized in that: The bottom inner side of the isolation box (2) has two inclined rearward guide rails (25) symmetrically fixedly installed. The guide rails (25) are slidably connected with matching grooves (26), and the top surface of the grooves (26) is fixedly connected with a horizontally set placement platform (27).

6. The temperature and humidity calibration chamber according to claim 5, characterized in that: A limiting pin (28) is fixedly connected inside the slide groove (26), and a limiting groove (29) adapted to the limiting pin (28) is provided on the guide rail (25). The limiting pin (28) is inserted into the limiting groove (29) and slidably connected.

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