A solar-powered constant temperature and humidity machine

Abstract

This application relates to a solar-powered constant temperature and humidity machine, belonging to the technical field of constant temperature and humidity machines. It includes a dehumidification module comprising a condensation dehumidification system and a drying dehumidification system. The condensation dehumidification system includes a compressor, a heat exchanger I, a throttling device, and a heat exchanger II connected in sequence. The constant temperature and humidity machine contains a dehumidification chamber for housing the dehumidification module. A partition within the dehumidification chamber divides it into an air inlet chamber and a heat exchange chamber. An air box I for accommodating heat exchanger II is fixed within the air inlet chamber. The drying dehumidification system includes an air box II for accommodating zeolite, fixedly connected within the air inlet chamber. Three-way valves are installed at the air inlet and outlet ends of air boxes I and II. When a temperature sensor within the constant temperature and humidity machine detects that the temperature inside the chamber reaches a threshold temperature, the three-way valves regulate the flow of humid air into either the condensation dehumidification system or the drying dehumidification system. This application can adapt to dehumidification needs under different temperature conditions.

Description

Technical Field

[0001] This application relates to the technical field of constant temperature and humidity machines, and in particular to a solar-powered constant temperature and humidity machine. Background Technology

[0002] A solar-specific constant temperature and humidity chamber is an experimental instrument used to simulate temperature, humidity, and light intensity for solar panels or their photovoltaic components and related elements.

[0003] The dehumidification systems in solar-powered constant temperature and humidity units commonly include condenser dehumidifiers and desiccant dehumidifiers. Condenser dehumidifiers work by utilizing the principle of refrigerant vaporization absorbing heat and liquefaction releasing heat. When humid air comes into contact with the low-temperature, low-pressure refrigerant, it absorbs heat, causing water vapor in the humid air to condense into liquid water, which is then collected and discharged. However, at low temperatures, the liquid water adhering to the pipe walls of a condenser dehumidifier easily freezes, resulting in poor dehumidification efficiency.

[0004] Desiccant dehumidifiers are less affected by ambient temperature and can be used in low-temperature simulation experiments with solar panels. However, if the desiccant used in the dehumidifier is non-renewable, it needs to be inspected and replaced regularly. If it is a renewable desiccant, such as a molecular sieve, external conditions usually need to be changed to regenerate the desiccant, and the desiccant cannot adsorb moisture during the regeneration process, leading to the interruption of the experiment. Summary of the Invention

[0005] In order to provide a dehumidification device that can accommodate different temperatures in a constant temperature and humidity machine, this application provides a solar-specific constant temperature and humidity machine.

[0006] This application provides a solar-powered constant temperature and humidity machine using the following technical solution:

[0007] A solar-powered constant temperature and humidity machine includes a dehumidification module, which comprises a condensation dehumidification system and a drying dehumidification system. The condensation dehumidification system includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger connected in sequence. A dehumidification chamber for housing the dehumidification module is provided within the constant temperature and humidity machine. A partition divides the dehumidification chamber into an air inlet chamber and a heat exchange chamber. An air box for accommodating the second heat exchanger is fixedly installed within the air inlet chamber. The drying dehumidification system includes an air box for accommodating zeolite, which is fixedly connected to the air inlet chamber. Three-way valves are respectively installed at the air inlet and outlet of the air box 1 and the air box 2. When the temperature sensor in the constant temperature and humidity machine detects that the temperature inside the box reaches the temperature threshold, the three-way valve is used to adjust the humid air to enter the condensation dehumidification system or the drying dehumidification system. The compressor, heat exchanger 1, throttling device and heat exchanger 2 form a circulation loop. A four-way pipe for changing the flow direction of the coolant is installed in the compressor. A heat exchange box is fixed in the heat exchange chamber. The heat exchange box includes a wheel box fixed to the partition and a reaction box fixed to the periphery of the wheel box. The heat exchanger 1 is fixed in the reaction box.

[0008] Optionally, a valve sleeve is fixed between the air inlet and the two air outlets of the three-way valve; a ball valve is rotatably installed inside the valve sleeve; the ball valve is spherical and fan-shaped, and a mating groove is opened at the top of the ball valve; an adjusting tube is fixed at the top of the valve sleeve, and an adjusting rod is slidably installed vertically inside the adjusting tube; the adjusting rod can be inserted into the mating groove and drives the ball valve to rotate by engaging with the mating groove; a guide rod is fixedly connected to the top of the adjusting rod, and a guide groove is opened on the inner wall of the adjusting tube to accommodate the guide rod; a magnetic block one, a magnetic block two, and a magnetic block three are sequentially embedded vertically on the inner wall of the guide groove; an adsorption plate that can perform magnetic attraction is fixedly connected to the end of the guide rod away from the adjusting rod; both magnetic block one and magnetic block three are electromagnets, and magnetic block one and magnetic block three are respectively connected to a microcontroller, and the microcontroller is connected to a temperature sensor.

[0009] Optionally, the adjusting rod has a plurality of spiral protrusions evenly distributed along its circumference, and the inner circumferential surface of the mating groove has a plurality of spiral grooves evenly distributed along its circumference that can engage with the spiral protrusions.

[0010] Optionally, the wheel box is rotatably equipped with several phase change boxes that can sequentially enter the reaction chamber, and the phase change boxes store phase change materials that can exchange heat with the coolant; a communication hole is provided between the first air box and the second air box.

[0011] Optionally, an axle is rotatably connected to the inner wall of the wheel box, and several wheel tubes are fixed around the axle; a wheel rod is slidably arranged in the wheel tube along the radial direction of the axle; a telescopic spring is fixedly installed in the wheel tube, and the telescopic spring is fixedly connected to the end of the wheel rod; the phase change box is fixedly connected to the end of the wheel rod, and a connection hole is opened between the reaction chamber and the wheel box for the phase change box to pass through; the phase change box is provided with an inclined surface facing the rotation direction of the axle.

[0012] Optionally, the top of the second air box is fixedly connected to an air inlet box, and the bottom is fixedly connected to an outlet box; a wheel is rotatably arranged inside the second air box; two receiving slots for accommodating mesh bags are opened on the wheel, and zeolite is placed inside the mesh bags; an electromagnetic plate is fixedly connected to the bottom of the receiving slot; a magnetic plate that can be attracted to the electromagnetic plate is fixedly connected to the bottom surface of the mesh bag; a support plate is fixedly connected to the side wall of the mesh bag; a support plate groove for accommodating the support plate is opened on the inner wall of the receiving slot; a compression spring is fixedly installed in the support plate groove, and the end of the compression spring is fixedly connected to the support plate; the connecting hole is provided on the inner wall of the outlet box.

[0013] Optionally, a battery and two sets of switches are fixedly installed inside the wheel. The fixed plate of the switch is electrically connected to the battery, and the movable plate is electrically connected to the electromagnetic plate. An electromagnetic plate groove is formed on the side wall of the wheel. The fixed plate is embedded in the bottom of the electromagnetic plate groove. The movable plate is slidably disposed in the electromagnetic plate groove along the axial direction of the electromagnetic plate groove, and can make electrical contact with the fixed plate after the movable plate moves towards the bottom of the electromagnetic plate groove. A return spring is fixedly installed inside the electromagnetic plate groove. A baffle is fixedly connected to the end of the return spring facing the partition plate, and the movable plate is fixedly connected to the baffle in the direction facing the bottom of the electromagnetic plate groove. Two clearance holes are formed on the side wall of the second air box at the position of the electromagnetic plate groove, and the baffle can be inserted into the clearance holes. A chamfer is formed at the top corner of the baffle facing the rotation direction of the wheel.

[0014] Optionally, a stepper motor is provided on the side of the phase change box away from the partition, and the output shaft of the stepper motor is coaxially fixed to the wheel axle. An installation cavity is provided in the partition. Gear 1 and gear 2 are rotatably arranged in the installation cavity and mesh with each other. The wheel axle is coaxially fixed to the gear. A transmission shaft 2 connected to gear 2 is fixed to the wheel disk.

[0015] Optionally, the second gear is slidably connected to the second transmission shaft; an electromagnetic ring and a return spring are fixedly connected to the inner wall of the mounting cavity, and a magnetic ring that can magnetically attract the electromagnetic ring is fixedly connected to the end of the return spring; the magnetic ring is rotatably connected to the second gear; the electromagnetic ring is connected to a microcontroller, and when the temperature inside the constant temperature and humidity chamber exceeds the temperature threshold set by the microcontroller, the microcontroller controls the electromagnetic ring to be energized.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. Condensation dehumidification is stable at room temperature and high temperatures, but crystallization easily occurs on the pipe wall at low temperatures. While zeolite, as an adsorbent for water molecules, can increase its adsorption capacity at low temperatures, the adsorption sites are fixed, requiring the adsorbed liquid water to be discharged after a period of time. This application combines condensation dehumidification with zeolite dehumidification. Condensation dehumidification is used at room temperature and high temperatures, while at low temperatures, a counter-current flow of coolant provides heat for the desorption of water from the zeolite, thus meeting the dehumidification requirements of the constant temperature and humidity machine under different temperature conditions.

[0018] 2. In this application, the second bellows provides a reaction vessel for zeolite adsorption, and the wheel is used to contain the zeolite. Since both the wheel and the second bellows are made of heat-insulating material, heat exchange between the zeolite adsorption space inlet box and the desorption space outlet box can be reduced when the wheel rotates, i.e., when the zeolite before and after desorption is exchanged. An electromagnetic plate is installed inside the wheel to collect the zeolite into the wheel, and the wheel is used to send the zeolite from the inlet box to the outlet box, or from the outlet box back to the inlet box.

[0019] 3. The heat exchange box in this application is used to hold n-octadecane. The heat absorption and release of n-octadecane can be used to store the heat released by the coolant, and provide the heat required for vaporization of the coolant when the coolant flows in the opposite direction. The coolant transfers the heat to the zeolite for thermal regeneration, thus solving the problem of the heat required for thermal regeneration of zeolite molecular sieve after a period of adsorption. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the air intake chamber inside the dehumidifier box in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of the heat exchange chamber inside the dehumidification box in an embodiment of this application.

[0022] Figure 3 These are cross-sectional views of bellows box one and bellows box two according to embodiments of this application.

[0023] Figure 4 This is a cross-sectional view of the second bellows in the embodiment of this application.

[0024] Figure 5 This is a cross-sectional view of the three-way pipe according to an embodiment of this application.

[0025] Figure 6 This is a cross-sectional view of the wheel in an embodiment of this application.

[0026] Figure 7 This is a cross-sectional view of the heat exchange box in an embodiment of this application.

[0027] Figure 8 This is a cross-sectional view of the wheel tube in an embodiment of this application.

[0028] Figure 9 This is a schematic diagram of the variable speed gear structure according to an embodiment of this application.

[0029] Attached reference numerals: 1. Compressor; 11. Heat exchanger one; 12. Heat exchanger two; 13. Inlet end; 14. Outlet end; 15. Throttling valve; 16. Connecting hole; 17. Mesh bag; 18. Guide groove; 2. Dehumidification box; 21. Baffle plate; 22. Air inlet chamber; 23. Heat exchange chamber; 24. Air box one; 25. Drain pipe one; 26. Air inlet pipe one; 27. Air inlet pipe two; 28. Air outlet pipe two; 29. ​​Air outlet pipe one; 3. Air box two; 31. Air inlet box; 32. Liquid outlet box; 33. Wheel; 34. Receiving tank; 35. Electromagnetic plate; 36. Inclined surface; 37. Support plate; 38. Support plate groove; 39. Compression spring; 4. Three-way valve; 41. Temperature control box; 42. Air inlet end; 43. Air outlet one; 44. Valve sleeve; 45. Ball valve; 4 6. Fitting groove; 47. Spiral protrusion; 48. Adjusting rod; 49. Second air outlet; 5. Adjusting pipe; 51. Second drain pipe; 52. Guide rod; 53. Magnetic block one; 54. Magnetic block two; 55. Magnetic block three; 6. Electromagnetic plate slot; 61. Fixed plate; 62. Return spring; 63. Moving plate; 64. Clearance hole; 65. Chamfer; 66. Baffle plate; 67. Limiting plate; 7. Mounting cavity; 71. Gear one; 72. Heat insulation collar; 73. Stepper motor; 74. Gear two; 75. Second drive shaft; 76. Electromagnetic ring; 77. Return spring; 78. Magnetic ring; 8. Heat exchange box; 81. Wheel box; 82. Reaction box; 83. Wheel axle; 84. Wheel tube; 85. Wheel rod; 86. Telescopic spring; 87. Phase change box; 88. Connecting hole. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0031] This application discloses a solar-powered constant temperature and humidity machine. The solar-powered constant temperature and humidity machine includes a dehumidification module, which comprises a condensation dehumidification system, a drying dehumidification system, and an energy storage unit. At normal or high temperatures, humid air enters the condensation dehumidification system, where water vapor in the humid air is condensed into a liquid state, thus dehumidifying the air. At low temperatures, humid air enters the drying dehumidification system, where it is dehumidified by passing through a zeolite molecular sieve. In this embodiment, the zeolite can be type A zeolite. The heat released by the condensation dehumidification system is stored in the energy storage unit for thermal regeneration of the zeolite.

[0032] The condensing dehumidification system includes a compressor 1, heat exchangers, and a throttling device. Compressor 1 and the throttling device are connected to two heat exchangers via copper pipes, forming a circulation pipeline connecting compressor 1, heat exchanger 11, the throttling device, and heat exchanger 12. The circulation pipeline carries a coolant, which can be Freon. The coolant absorbs and releases heat through a phase change within the circulation pipeline. One of the two heat exchangers functions as an evaporator, and the other as a condenser. Compressor 1 provides the power for the coolant flow. The coolant is pressurized and heated as it passes through compressor 1, then reaches heat exchanger 11, which functions as a condenser. The coolant releases heat in heat exchanger 11 and condenses into a liquid. Afterward, the coolant enters the throttling device to reduce pressure and lower its temperature and pressure. The coolant absorbs heat in the evaporator, vaporizes into a gas, and continues to flow back to compressor 1. Both heat exchangers in this application are plate-fin heat exchangers, each having an inlet end 13 for the coolant to enter and an outlet end 14 for the coolant to exit. The throttling device may be a throttling valve 15.

[0033] In the aforementioned cycle, when humid air enters heat exchanger 12, the moisture in the humid air condenses into liquid water under the action of a low-temperature, low-pressure coolant. An energy storage unit is located at heat exchanger 11 to house the phase change material n-octadecane, and to store and release heat through the phase change of n-octadecane. A drying and dehumidification system is located at heat exchanger 12, using zeolite as a desiccant, to replace the condensation dehumidification system in treating humid air at low temperatures.

[0034] The compressor 1 is equipped with a four-way pipe for changing the direction of the coolant flow. When the coolant flows in reverse, heat exchanger 11 acts as an evaporator, where the coolant absorbs heat and vaporizes into a gaseous state after passing through it. Heat exchanger 12 acts as a condenser, where the coolant releases heat and liquefies into a liquid state after passing through it. During the above cycle, the coolant absorbs heat released by n-octadecane at heat exchanger 11; the coolant releases heat in heat exchanger 12 to provide a thermal regeneration environment for the zeolite.

[0035] The compressor 1's inlet and outlet 14 are connected to ports A and C of the four-way pipe, respectively; port B of the four-way pipe is connected to heat exchanger 11, and port D is connected to heat exchanger 2 12. A temperature sensor is installed inside the test chamber of the constant temperature and humidity chamber; a microcontroller is connected to both the temperature sensor and the four-way pipe; the temperature sensor measures the temperature inside the test chamber, and its data line is connected to the microcontroller's input pin; the microcontroller's two output pins are connected to the two terminals of the four-way pipe's solenoid valve. When the temperature measured by the temperature sensor reaches the microcontroller's temperature threshold, the microcontroller controls the coolant flow direction within the four-way pipe; if the temperature exceeds 10℃, the coolant flows in the forward direction through compressor 1, heat exchanger 2 12, throttle valve 15, and heat exchanger 11; if the temperature is below 10℃, the coolant flows in the reverse direction through compressor 1, heat exchanger 11, throttle valve 15, and heat exchanger 2 12.

[0036] Reference Figure 1 and Figure 2 The constant temperature and humidity machine is equipped with a dehumidification chamber 2 for housing the dehumidification module. The dehumidification chamber 2 is divided into two separate areas, an air inlet chamber 22 and a heat exchange chamber 23, by a partition 21. Heat exchanger 11 is located in the heat exchange chamber 23, and heat exchanger 22 is located in the air inlet chamber 22. The compressor 1 and the throttling device can be located in either the heat exchange chamber 23 or the air inlet chamber 22.

[0037] Reference Figure 3 and Figure 4 An air box 24 for accommodating a heat exchanger 12 is fixedly installed inside the air inlet chamber 22. A drain pipe 25 is fixedly connected to the bottom of the air box 24 for discharging liquid water condensed in the humid air. The heat exchanger 12 is fixed on the vertical side wall of the air box 24. The side walls of the heat exchanger 12 facing the outside of the air box 24 and the side walls facing the inside of the air box 24 are made of heat transfer materials, such as aluminum alloy, to facilitate heat exchange between the coolant and the humid air outside after the coolant flows through the air box 24.

[0038] Reference Figure 3 and Figure 4 The drying and dehumidification system includes a second air box 3 for containing zeolite, which is fixed to the vertical side wall of the air inlet chamber 22; a first air box 24 is fixed to the side wall of the second air box 3; a connecting hole 16 is provided between the first air box 24 and the second air box 3, and an electromagnetic regulating valve is fixed in the connecting hole 16. A second heat exchanger 12 is fixed to the inner wall of the first air box 24 near the second air box 3, and the side wall of the second heat exchanger 12 near the second air box 3 is in contact with the electromagnetic regulating valve. The electromagnetic regulating valve is used to isolate the heat exchange between the second air box 3 and the second heat exchanger 12.

[0039] Reference Figure 1The dehumidification chamber 2 has an air inlet pipe 26 fixedly connected to the air inlet chamber 22. Air inlet pipes 27 extend from air boxes 24 and 3 respectively and are connected to air inlet pipe 26 via air inlet valves. Air outlet pipes 28 extend from air boxes 24 and 3 respectively in a direction away from air inlet pipe 26. A temperature control chamber 41 is also fixedly installed inside the air inlet chamber 22. Several heating elements are evenly distributed on the inner wall of the temperature control chamber 41, and cooling water pipes are also installed. An air outlet pipe 29 is fixedly connected to the temperature control chamber 41 towards the air outlet pipe 28, and the two air outlet pipes 28 are connected to the air outlet pipe 29 via air outlet valves. After drying, the humid air needs to be regulated by the temperature control chamber 41 to a temperature close to that inside the test chamber before it can be discharged.

[0040] Reference Figure 5 Both the inlet and outlet valves are three-way valves 4. A spherical valve sleeve 44 is fixedly installed at the inlet end 42 and the connecting section of the two outlet ends of the three-way valve 4. A ball valve 45 is rotatably installed inside the valve sleeve 44. The ball valve 45 is spherical and fan-shaped, and a spherical wedge-shaped area is formed between the plane of the ball valve 45 and the inner arc surface of the valve sleeve 44, allowing dry gas to pass through. By adjusting the position of the ball valve 45's spherical surface in contact with the inner wall of the valve sleeve 44, the spherical wedge-shaped area faces the two different outlet ends of the three-way valve 4. A mating groove 46 is provided at the top of the ball valve 45. An adjusting pipe 5 is fixed at the top of the valve sleeve 44, and an adjusting rod 48, which slides vertically through the top surface of the valve sleeve 44, is installed inside the adjusting pipe 5. The adjusting rod 48 can be inserted into the mating groove 46 of the ball valve 45 and drives the ball valve 45 to rotate by engaging with the mating groove 46.

[0041] Reference Figure 5 The adjusting rod 48 has several spiral protrusions 47 evenly distributed along its circumference, and the inner circumferential surface of the mating groove 46 has several spiral grooves evenly distributed along its circumference. The width of the spiral protrusions 47 is approximately equal to the width of the spiral grooves, so that when the adjusting rod 48 is inserted into the mating groove 46, the spiral protrusions 47 can engage with the spiral grooves. During the vertical movement of the adjusting rod 48, the spiral protrusions 47 press against the spiral grooves, thereby applying a rotational torque to the ball valve 45 and causing the ball valve 45 to rotate.

[0042] Reference Figure 5A guide rod 52 extends horizontally from the top of the adjusting rod 48. A guide groove 18, vertically oriented, is formed on the inner wall of the adjusting tube 5 to accommodate the guide rod 52. The adjusting rod 48 can move vertically by engaging the guide rod 52 with the guide groove 18. From top to bottom, the inner wall of the guide groove 18 is sequentially fitted with a first magnetic block 53, a second magnetic block 54, and a third magnetic block 55. An adsorption plate is fixed to the end of the guide rod 52 furthest from the adjusting rod 48, which can attract the first magnetic block 53, the second magnetic block 54, and the third magnetic block 55. The first magnetic block 53 and the third magnetic block 55 are both electromagnets, and their magnetism is greater than that of the second magnetic block 54 when energized. When magnet 1 (53) and magnet 3 (55) are de-energized, guide rod 52 attracts magnet 2 (54), causing the plane of ball valve 45 to be positioned opposite the inlet end 42. Because the spherical surface of ball valve 45 is in contact with the two inner arc surfaces of valve sleeve 44, the three-way valve 4 is closed. When magnet 1 (53) or magnet 2 (54) is energized and attracts guide rod 52, guide rod 52 moves upward or downward, causing ball valve 45 to rotate. The plane of ball valve 45 faces the inner arc surface of valve sleeve 44 near outlet end 1 (43) or near outlet end 2 (49), thereby controlling the gas flow direction. When ball valve 45 rotates, outlet end 1 (43) and outlet end 2 (49) are isolated from each other, allowing inlet end 42 to connect only to a single outlet end.

[0043] Magnetic blocks 53 and 55 are connected to the microcontroller. Specifically, the two output pins of the microcontroller are connected to the input terminals of two relays, and magnetic blocks 53 and 55 are connected to the normally open circuits of the two relays. When the temperature of the test chamber exceeds the temperature threshold of the microcontroller, the microcontroller inputs a high level to relay 1 to open magnetic block 53 and a low level to relay 2 to close magnetic block 55. This causes the adjusting rod 48 to move upward and the plane of the ball valve 45 to face the air box 24, allowing the humid air to be dehumidified through the condensation dehumidification system. When the temperature of the test chamber is lower than the temperature threshold of the microcontroller, the microcontroller controls magnetic block 53 to close and magnetic block 55 to open, causing the adjusting rod 48 to move downward and the plane of the ball valve 45 to face the air box 3, allowing the humid air to be dehumidified through the drying dehumidification system.

[0044] Reference Figure 4The second bellows 3 has a circular longitudinal section. An air inlet box 31 is fixed to the top of the second bellows 3, and a liquid outlet box 32 is fixed to the bottom. A rotating wheel 33 is installed inside the second bellows 3. Both the second bellows 3 and the wheel 33 are made of aluminum foil, a heat-insulating material, to reduce heat exchange between the air inlet box 31 and the liquid outlet box 32. Two receiving slots 34 are provided on the wheel 33 to accommodate mesh bags 17. Zeolite is placed inside the mesh bags 17, and the mesh diameter of the mesh bags 17 is smaller than the zeolite particle size, facilitating the entry of humid air into the mesh bags 17 and its adsorption by the zeolite, and also facilitating the discharge of adsorbed liquid water by the zeolite. The weight of the zeolite in a single mesh bag 17 is 200-400g. The two receiving slots 34 are symmetrically arranged on the outer circumference of the wheel 33, and an electromagnetic plate 35 is fixed to the bottom of each receiving slot 34. A magnetic plate that can be attracted to the electromagnetic plate 35 is fixed to the bottom surface of the mesh bag 17. The electromagnetic sheet 35 is an electromagnet. When the electromagnetic sheet 35 is connected to the power supply, it can attract magnetic deviations. The electromagnetic sheet 35 is fixed to the bottom of the receiving groove 34 by bolts. A rigid base plate can be set at the bottom of the mesh bag 17, and the rigid base plate is connected to the top of the mesh bag 17 by a rigid support, thereby providing a support frame for the mesh bag 17. The magnetic sheet is fixed to the bottom surface of the rigid base plate.

[0045] Reference Figure 6 A support plate 37 is fixedly connected to the side wall of the mesh bag 17. The inner wall of the receiving groove 34 has a support plate groove 38 for accommodating the support plate 37. The support plate 37 can slide radially along the wheel 33 within the support plate groove 38. A compression spring 39 is also fixedly installed within the support plate groove 38, with its end fixedly connected to the support plate 37. The magnetic attraction between the electromagnetic plate 35 and the magnetic plate is used to draw the mesh bag 17 into the receiving groove 34. When the compression spring 39 returns to its original position, it can extend the mesh bag 17 out of the receiving groove 34. The outer diameter of the wheel 33 is approximately equal to the inner diameter of the second air box 3, ensuring that the outer wall of the wheel 33 fits snugly against the inner wall of the second air box 3, thereby reducing heat exchange between the air inlet box 31 and the liquid outlet box 32. When the wheel 33 rotates, the electromagnetic plate 35 is energized and the mesh bag 17 is drawn into the receiving groove 34, and the compression spring 39 is in a compressed state; the wheel 33 stops rotating when the two receiving grooves 34 are facing the air inlet box 31 and the liquid outlet box 32 respectively; the magnetic plate is de-energized and the two mesh bags 17 are sent into the air inlet box 31 and the liquid outlet box 32 respectively.

[0046] The side wall of the air inlet box 31 is connected to the second air inlet pipe 27, which is used to send humid air into the mesh bag 17 for adsorption with zeolite. A second drain pipe 51 is fixed to the bottom of the outlet box 32 for discharging the liquid water collected by the zeolite. A connecting hole 16 and an electromagnetic regulating valve are located on the inner wall of the outlet box 32. When the coolant flows in the reverse direction, the electromagnetic regulating valve opens, and the coolant condenses into liquid and releases heat as it flows through the second heat exchanger 12. Because zeolite increases the adsorption of water molecules at low temperatures, enhancing its drying ability for humid air, while at high temperatures, the adsorption of water molecules decreases, the heat released by the coolant can accelerate the desorption of liquid water, allowing the zeolite to undergo thermal regeneration. The electromagnetic regulating valve is connected to a microcontroller. Specifically, the terminals of the electromagnet of the electromagnetic regulating valve are connected to the output pins of the microcontroller. When the temperature exceeds the temperature threshold of the microcontroller, the microcontroller outputs a low level to the electromagnetic regulating valve, the electromagnetic regulating valve closes, and the humid air is dehumidified through the condensation dehumidification system. When the temperature is lower than the temperature threshold of the microcontroller, the electromagnetic regulating valve opens, the humid air is dehumidified through the drying dehumidification system, and the flow and circulation of coolant is used to accelerate the regeneration of zeolite.

[0047] Reference Figure 4 and Figure 6A battery and two sets of switches are fixed inside the wheel 33, used to control the on / off state of two electromagnetic plates 35. The fixed plates 61 of both sets of switches are electrically connected to the battery via wires, and the movable plates 63 are electrically connected to the electromagnetic plates 35 via wires. The battery is embedded within the wheel 33. An electrical plate slot 6 is formed on the side wall of the wheel 33 near the partition 21 to accommodate the fixed plates 61 and the movable plates 63. The electrical plate slot 6 has a circular cross-section, and the two fixed plates 61 are symmetrically embedded in the bottom of the slot 6 radially. The two movable plates 63 are slidably disposed within the slot 6 axially, and after moving towards the bottom of the slot 6, they can make electrical contact with the fixed plates 61, thus connecting the electromagnetic plates 35 to the battery. Two return springs 62 are fixedly installed inside the electrostatic precipitator 6. A baffle 66 is fixedly connected to the end of the return spring 62 facing the partition 21, and a movable piece 63 is fixedly connected to the baffle 66 in the direction facing the bottom of the electrostatic precipitator 6. The return spring 62 is sleeved around the movable piece 63, and the fixed piece 61 is located inside the return spring 62, so that when the return spring 62 contracts, the movable piece 63 can contact the fixed piece 61. The vertical sidewall of the second air box 3 is located at the position of the electrostatic precipitator 6 and has two relief holes 64 symmetrically opened radially along the electrostatic precipitator 6. The baffle 66 can be inserted into the relief holes 64. The line connecting the two relief holes 64 is set vertically, so that when the two mesh bags 17 are located in the air inlet box 31 and the liquid outlet box 32 respectively, the baffle 66 is inserted into the relief hole 64, so that the fixed piece 61 and the movable piece 63 are in a separated state. The baffle 66 has a chamfer 65 at the top corner facing the rotation direction of the wheel 33. When the wheel 33 rotates, the baffle 66 abuts against the wall of the relief hole 64 through the chamfer 65 and is drawn into the electric plate groove 6 under the action of pressure. After the baffle 66 is drawn into the electric plate groove 6, the fixed plate 61 and the moving plate 63 make electrical contact, and the electromagnetic plate 35 attracts the net bag 17 and draws the net bag 17 into the receiving groove 34.

[0048] Reference Figure 4 To ensure that the baffle 66 and the movable piece 63 can only move along the axial direction of the electric plate groove 6, a limiting piece 67 is fixedly attached to the side wall of the baffle 66, and a limiting groove is opened on the inner wall of the electric plate groove 6 along the axial direction of the electric plate groove 6; the limiting piece 67 is slidably disposed in the limiting groove to prevent the baffle 66 from disengaging from the relief hole 64 due to the action of the return spring 62 after it is inserted into the relief hole 64.

[0049] Reference Figure 2 and Figure 7The energy storage unit includes a heat exchange box 8, which is fixed inside the heat exchange chamber 23. The heat exchange box 8 includes a wheel box 81 fixed to a partition 21 and a reaction chamber 82 fixed to the top of the wheel box 81. A heat exchanger 11 is fixed inside the reaction chamber 82, and the side wall of the heat exchanger 11 facing the inside of the reaction chamber 82 uses a heat transfer material, such as aluminum alloy, to facilitate heat exchange between the coolant and the n-octadecane entering the reaction chamber 82 during the phase change of the coolant within the heat exchanger 11. A solenoid valve is installed on the side wall of the reaction chamber 82. After all the n-octadecane stored in the heat exchange box 8 has exchanged heat with the coolant, the solenoid valve is opened to introduce room temperature air into the reaction chamber 82 to remove excess heat.

[0050] Reference Figure 7 and Figure 8 A wheel axle 83 is pivotally mounted at the center of the inner wall of the wheel box 81. Several wheel tubes 84 are evenly distributed around the circumference of the wheel axle 83. A wheel rod 85 is slidably mounted radially along the wheel axle 83 within each wheel tube 84. A telescopic spring 86 is fixedly mounted inside each wheel tube 84 and is connected to the end of the wheel rod 85, providing elastic force to the wheel rod 85 towards the side away from the wheel axle 83. A phase change box 87 is fixedly mounted to the end of the wheel rod 85, and n-octadecane is disposed within the phase change box 87. A connection hole 88 is provided at the connection point between the reaction chamber 82 and the wheel box 81, allowing the phase change box 87 to pass through.

[0051] The sidewall of the phase change box 87 away from the wheel rod 85 is made of ceramic material, such as aluminum nitride or boron nitride. After the phase change box 87 moves into the reaction chamber 82 through the connecting hole 88, heat is transferred to the reaction chamber 82 through the phase change of n-octadecane. The volume of the phase change box 87 is less than 0.1 m³. 3 The phase change chamber 87 contains 1-5g of n-octadecane. The phase change temperature of n-octadecane is 28℃. When the coolant flows forward, the high-temperature, high-pressure coolant releases heat upon entering heat exchanger 11, causing the n-octadecane to melt into a liquid state and storing the heat released by the coolant. When the coolant flows backward, the low-temperature, low-pressure coolant enters heat exchanger 11, causing the liquid n-octadecane in reaction chamber 82 to solidify and release heat, while the coolant absorbs heat. The wheel box 81 uses ceramic fiber insulation material to reduce heat exchange between the n-octadecane and the outside environment after entering the wheel box 81.

[0052] Reference Figure 7The phase change box 87 has an inclined surface 36 facing the rotation direction of the axle 83. The inclined surface 36 is located at the apex of the phase change box 87 on the side away from the wheel rod 85, so that when the axle 83 rotates, the phase change box 87 abuts against the inner wall of the connecting hole 88 through the inclined surface 36 and is retracted into the wheel box 81. When the axle 83 rotates, the phase change box 87 abuts against the inner circumferential surface of the wheel box 81 under the action of the telescopic spring 86; after the phase change box 87 rotates to the position of the connecting hole 88, it enters the reaction chamber 82 under the action of the elastic force. A heat insulation collar 72 made of ceramic fiber is fixedly fitted around the phase change box 87; after the phase change box 87 is inserted into the connecting hole 88, the heat insulation collar 72 abuts against the inner wall of the wheel box 81. Since there is a gap between the phase change box 87 and the inner wall of the connecting hole 16, the heat insulation collar 72 is used to reduce heat transfer in the gap.

[0053] Reference Figure 7 A stepper motor 73 is installed on the side of the phase change box 87 away from the partition 21. The output shaft of the stepper motor 73 is coaxially fixed to the wheel axle 83. After the stepper motor 73 starts, it will drive the wheel axle 83 to rotate a unit angle and then stop rotating. When the wheel axle 83 rotates, it will cause one phase change box 87 to leave the reaction chamber 82 and cause the adjacent phase change box 87 to rotate into the reaction chamber 82. The stepper motor 73 can be manually controlled or connected to a timer to start the stepper motor 73 and drive the wheel axle 83 to rotate a unit angle within a preset unit time.

[0054] Reference Figure 9 The partition 21 is equipped with a speed-changing gear structure for synchronizing the rotation of the axle 83 and the disc 33. The partition 21 has an installation cavity 7. The speed-changing gear structure includes a gear 1 71 and a gear 2 74 that are rotatably disposed in the installation cavity 7 and mesh with each other. By adjusting the tooth diameters of the gear 1 71 and the gear 2 74, when the disc 33 rotates half a turn, the two phase change boxes 87 in the reaction chamber 82 are replaced, that is, one phase change box 87 leaves the reaction chamber 82 and the other phase change box 87 enters the reaction chamber 82.

[0055] Reference Figure 9A drive shaft 1, coaxially fixed to gear 1 71, is fixedly connected to the side of wheel axle 83 away from stepper motor 73. A drive shaft 2 75, connected to gear 2 74, is fixedly fixed to the center of wheel disc 33. Drive shaft 2 75 is a square shaft, and gear 2 74 is slidably connected to drive shaft 2 75. An electromagnetic ring 76 and a return spring 77, sleeved around drive shaft 2 75, are fixedly connected to the inner wall of mounting cavity 7. The electromagnetic ring 76 is fixedly connected to the outer circumference of drive shaft 2 75; a magnetic attraction ring 78, which can magnetically attract the electromagnetic ring 76, is fixedly connected to the end of the return spring 77; the electromagnetic ring 76 is an electromagnet. The magnetic attraction ring 78 is sleeved around drive shaft 2 75, and drive shaft 2 75 can rotate freely within the magnetic attraction ring 78; the magnetic attraction ring 78 is rotatably connected to gear 2 74. After the electromagnetic ring 76 is connected to the battery, it attracts the magnetic ring 78, causing the second gear 74 to shift. After shifting, the second gear 74 separates from the first gear 71. A retaining ring is fixedly sleeved on the circumference of the second transmission shaft 75 to limit the movement of the second gear 74. After the return spring 77 pushes the second gear 74 to reset, the second gear 74 can mesh with the first gear 71.

[0056] The electromagnetic ring 76 can be connected to a microcontroller or a relay. Specifically, the output pin of the microcontroller is connected to the input terminal of the relay, and the electromagnetic ring 76 is connected to the normally open circuit of the relay. When the temperature of the test chamber detected by the temperature sensor exceeds the temperature threshold set by the microcontroller, the microcontroller inputs a high level to the relay, controlling the electromagnetic ring 76 to be energized, causing gear 1 71 to separate from gear 2 74. At this time, the coolant flows in the forward direction, the condensation dehumidification system dehumidifies the humid air, and the zeolite in the drying dehumidification system is in a static state. The coolant enters the heat exchanger 11 and releases heat, which then enters the n-octadecane in the reaction chamber 82 to store the heat released by the coolant. When the temperature of the test chamber detected by the temperature sensor is lower than the temperature threshold set by the microcontroller, the microcontroller inputs a low level to the relay, controlling the electromagnetic ring 76 to be de-energized. The rotation of the axle 83 will drive the wheel 33 to rotate, and the heat released by the n-octadecane in the single phase change box 87 will be used for the thermal regeneration of the zeolite.

[0057] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A solar-powered constant temperature and humidity machine, comprising a dehumidification module, the dehumidification module comprising a condensation dehumidification system and a drying dehumidification system; the condensation dehumidification system comprising a compressor (1), a heat exchanger one (11), a throttling device and a heat exchanger two (12) connected in sequence, the constant temperature and humidity machine being provided with a dehumidification box (2) for housing the dehumidification module; the dehumidification box (2) is provided with a partition (21) dividing the dehumidification box (2) into an air inlet chamber (22) and a heat exchange chamber (23), the air inlet chamber (22) being fixedly provided with a wind box one (24) for accommodating the heat exchanger two (12), characterized in that: The drying and dehumidification system includes a second air box (3) for containing zeolite, which is fixedly connected to the air inlet chamber (22); the air inlet and outlet of the first air box (24) and the second air box (3) are respectively provided with three-way valves (4); when the temperature sensor in the constant temperature and humidity machine detects that the temperature inside the box reaches the temperature threshold, the three-way valve (4) is used to adjust the humid air to enter the condensation dehumidification system or the drying and dehumidification system; the compressor (1), heat exchanger (11), throttling device and heat exchanger (22) form a circulation loop; the compressor (1) is provided with a four-way pipe for changing the flow direction of the coolant; the heat exchange chamber (23) is fixedly provided with a heat exchange box (8); the heat exchange box (8) includes a wheel box (81) fixedly connected to the partition (21) and a reaction box (82) fixedly located on the periphery of the wheel box (81); the first heat exchanger (11) is fixedly located in the reaction box (82).

2. The solar-powered constant temperature and humidity machine according to claim 1, characterized in that: A valve sleeve (44) is fixed between the air inlet and the two air outlets of the three-way valve (4); a ball valve (45) is rotatably installed inside the valve sleeve (44); the ball valve (45) is spherical and fan-shaped, and a mating groove (46) is provided on the top of the ball valve (45); an adjusting tube (5) is fixed on the top of the valve sleeve (44), and an adjusting rod (48) is slidably installed vertically inside the adjusting tube (5); the adjusting rod (48) can be inserted into the mating groove (46), and drives the ball valve (45) to rotate by engaging with the mating groove (46); the adjusting rod (48) A guide rod (52) is fixedly attached to the top end. The inner wall of the regulating tube (5) is provided with a guide groove (18) that can accommodate the guide rod (52). The inner wall of the guide groove (18) is vertically embedded with a magnetic block one (53), a magnetic block two (54) and a magnetic block three (55). An adsorption sheet that can perform magnetic attraction is fixedly attached to the end of the guide rod (52) away from the regulating rod (48). The magnetic block one (53) and the magnetic block three (55) are both electromagnets. The magnetic block one (53) and the magnetic block three (55) are respectively connected to a microcontroller. The microcontroller is connected to a temperature sensor.

3. A solar-powered constant temperature and humidity machine according to claim 2, characterized in that: The adjusting rod (48) has several spiral protrusions (47) evenly distributed around its circumference, and the inner circumferential surface of the mating groove (46) has several spiral grooves that can engage with the spiral protrusions (47).

4. A solar-powered constant temperature and humidity machine according to claim 1, characterized in that: The wheel box (81) is rotatably equipped with several phase change boxes (87) that can enter the reaction box (82) in sequence. The phase change boxes (87) store phase change materials that can exchange heat with the coolant. A connecting hole (16) is provided between the first wind box (24) and the second wind box (3).

5. A solar-powered constant temperature and humidity machine according to claim 4, characterized in that: The inner wall of the wheel box (81) is connected to a wheel axle (83), and several wheel tubes (84) are fixed around the wheel axle (83); a wheel rod (85) is slidably arranged inside the wheel tube (84) along the radial direction of the wheel axle (83); a telescopic spring (86) is fixed inside the wheel tube (84), and the telescopic spring (86) is fixedly connected to the end of the wheel rod (85); the phase change box (87) is fixedly connected to the end of the wheel rod (85), and a connecting hole (88) is provided between the reaction box (82) and the wheel box (81) for the phase change box (87) to pass through; the phase change box (87) is provided with an inclined surface (36) facing the rotation direction of the wheel axle (83).

6. A solar-powered constant temperature and humidity machine according to claim 5, characterized in that: The top of the second air box (3) is fixedly connected to an air inlet box (31), and the bottom is fixedly connected to an outlet box (32); a wheel (33) is rotatably installed inside the second air box (3); two receiving slots (34) for accommodating mesh bags (17) are opened on the wheel (33), and zeolite is placed inside the mesh bags (17); an electromagnetic plate (35) is fixedly connected to the bottom of the receiving slot (34); a magnetic plate that can be attracted to the electromagnetic plate (35) is fixedly connected to the bottom surface of the mesh bag (17); a support plate (37) is fixedly connected to the side wall of the mesh bag (17), and a support plate groove (38) for accommodating the support plate (37) is opened on the inner wall of the receiving slot (34), and a compression spring (39) is fixedly installed in the support plate groove (38), with the end of the compression spring (39) fixedly connected to the support plate (37); the connecting hole (16) is located on the inner wall of the outlet box (32).

7. A solar-powered constant temperature and humidity machine according to claim 6, characterized in that: A battery and two sets of switches are fixedly installed inside the wheel (33). The fixed plate (61) of the switch is electrically connected to the battery, and the movable plate (63) is electrically connected to the electromagnetic plate (35). An electromagnetic plate groove (6) is opened on the side wall of the wheel (33). The fixed plate (61) is embedded in the bottom of the electromagnetic plate groove (6). The movable plate (63) is slidably disposed in the electromagnetic plate groove (6) along the axial direction of the electromagnetic plate groove (6), and the movable plate (63) can make electrical contact with the fixed plate (61) after moving towards the bottom of the electromagnetic plate groove (6). A return spring (62) is fixedly installed in the groove (6). A baffle (66) is fixedly connected to the end of the return spring (62) facing the partition (21). The moving piece (63) is fixedly connected to the baffle (66) facing the bottom of the electric plate groove (6). Two clearance holes (64) are opened on the side wall of the second wind box (3) at the position of the electric plate groove (6). The baffle (66) can be inserted into the clearance hole (64). A chamfer (65) is opened at the top corner of the baffle (66) facing the rotation direction of the wheel (33).

8. A solar-powered constant temperature and humidity machine according to claim 7, characterized in that: A stepper motor (73) is provided on the side of the phase change box (87) away from the partition (21). The output shaft of the stepper motor (73) is coaxially fixed to the axle (83). An installation cavity (7) is provided in the partition (21). A gear 1 (71) and a gear 2 (74) are rotatably arranged in the installation cavity (7). The axle (83) is coaxially fixed to the gear 1 (71). A transmission shaft 2 (75) connected to the gear 2 (74) is fixed on the wheel disk (33).

9. A solar-powered constant temperature and humidity machine according to claim 8, characterized in that: The gear 2 (74) is slidably connected to the transmission shaft 2 (75); an electromagnetic ring (76) and a return spring (77) are fixedly connected to the inner wall of the mounting cavity (7), and a magnetic ring (78) that can magnetically attract the electromagnetic ring (76) is fixedly connected to the end of the return spring (77); the magnetic ring (78) is rotatably connected to the gear 2 (74); the electromagnetic ring (76) is connected to the microcontroller, and when the temperature inside the constant temperature and humidity chamber exceeds the temperature threshold set by the microcontroller, the microcontroller controls the electromagnetic ring (76) to be energized.

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