A refrigeration device for an air-conditioning test room

Abstract

The present invention relates to the technical field of refrigeration devices, and in particular to a refrigeration device for an air-conditioning test room, comprising an insulating outer cylinder, a gas circulation module provided on the insulating outer cylinder; an ice storage inner cylinder provided inside the insulating outer cylinder, the ice storage inner cylinder being transmission-connected to a driving device, the driving device being used to drive the ice storage inner cylinder to rotate, an ice-making module provided inside the ice storage inner cylinder; and a meltwater collection module also provided on the insulating outer cylinder. The present invention provides an ice-making module inside the device that can pre-make ice and automatically store ice, thereby making a large amount of ice cubes in advance and sealing them for storage. When cooling is required, the gas circulation module inside the device is activated to continuously circulate the air inside the device and the outside air. In this way, the ice cubes can be used to quickly lower the ambient temperature in the test room space, resulting in a faster cooling speed, meeting the requirements of some tests with lower requirements for lowering the ambient temperature, and having low energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration devices, and in particular to a refrigeration device used in an air-conditioning test room. Background Art

[0002] During the testing of air conditioners in an air conditioning laboratory, a single or multiple air conditioner outdoor units need to be placed in a relatively sealed space. A refrigeration device is also installed in the space to reduce the ambient temperature in the space and test the operating status of the air conditioner outdoor units at different ambient temperatures. Although the experimental space required for air conditioner outdoor units of different powers varies in size, in order to achieve faster cooling speed, the refrigeration device used is usually a single high-power unit or a combination of multiple medium-power units to achieve cooling. When such a refrigeration device is used, due to the high power of the unit, it takes a long time from the start of operation to reaching maximum power, making it difficult to achieve rapid and large-scale temperature reduction, resulting in a long test time. Moreover, after reaching the predetermined temperature and completing the test, the unit cannot be shut down immediately and must wait for the unit to slowly reduce its power before shutting down to ensure the service life of the refrigeration device. As a result, the energy consumption of the entire refrigeration device is high. Especially when testing some air conditioner outdoor units at low temperatures for a short period of time, the cost of using such a refrigeration device is even higher. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of the existing refrigeration devices in the prior art, such as slow startup speed and high energy consumption, and to propose a refrigeration device for an air-conditioning test room.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A refrigeration device for an air-conditioning test room is designed, comprising a heat-insulating outer cylinder on which a gas circulation module is provided;

[0006] An ice storage inner cylinder is provided in the heat-insulating outer cylinder, and the ice storage inner cylinder is connected to a driving device for driving the ice storage inner cylinder to rotate. An ice-making module is provided in the ice storage inner cylinder;

[0007] The heat-insulating outer cylinder is also provided with a meltwater collection module.

[0008] Preferably, the ice storage inner cylinder is cylindrical as a whole, and a connecting cover is rotatably installed at both ends of the ice storage inner cylinder. The two connecting covers are fixedly connected to the insulation outer cylinder, and a plurality of air holes are opened through the ice storage inner cylinder and the connecting covers.

[0009] Preferably, the ice storage inner cylinder is made of metal with good thermal conductivity, and a plurality of shifting plates are fixedly provided on the inner wall of the ice storage inner cylinder along the circumferential direction.

[0010] Preferably, the driving device includes a gear ring, a gear, and a motor. The gear ring is coaxially fixedly mounted on the ice storage inner cylinder. A gear meshing with the gear ring is provided on one side of the gear ring, and the motor is transmission-connected to the gear.

[0011] Preferably, the ice-making module includes a refrigerator and an ice-making assembly. Several ice-making assemblies are evenly distributed in the upper part of the ice storage inner cylinder. The ice-making assemblies are all connected to the refrigerator, and the refrigerator is used to cool the ice-making assemblies.

[0012] Preferably, the ice-making assembly includes a connector, a conduction column, an ice-making column, a telescopic mechanism, and a water-spraying mechanism. The conduction column is connected to the refrigerator through the connector, and an ice-making column corresponding to it is provided below the conduction column. A first magnetic component is fixed on the conduction column, and a second magnetic component is fixed on the ice-making column. The first magnetic component and the second magnetic component attract each other. The ice-making column is telescopically connected to the connector through the telescopic mechanism, and the water-spraying mechanism is used to spray water around the lower part of the ice-making column.

[0013] Preferably, the telescopic mechanism includes a movable cylinder, a fixed cylinder, and an elastic element. The movable cylinder is sleeved on the ice-making column, and the movable cylinder is fixedly connected to the ice-making column. A fixed cylinder is sleeved on the ice-making column below the movable cylinder, and the fixed cylinder is nested in the movable cylinder. An elastic element is also sleeved on the ice-making column in the movable cylinder, and both ends of the elastic element are fixedly connected to the ice-making column and the fixed cylinder respectively, and the fixed cylinder is fixedly connected to the connector.

[0014] Preferably, a friction heat generating mechanism in contact with the surface of the ice column is provided in the fixing cylinder, and the friction heat generating mechanism is used to rub the surface of the ice column performing telescopic movement, thereby generating heat to heat the ice column.

[0015] Preferably, the conduction column and the ice-making column are further connected via a connecting mechanism, and the connecting mechanism includes a fixed plate, a conduction ring, a docking cover, a heat-conducting plate, and an inner cylinder. The fixed plate is fixedly connected to the conduction column, a conduction ring is fixed to the lower surface of the fixed plate, the conduction ring extends into the docking cover, a heat-conducting plate is fixed to the inner bottom of the docking cover, the ice-making column passes through the docking cover and is fixedly connected to the heat-conducting plate, an inner cylinder is further fixed on the heat-conducting plate, and an annular sealing strip is fixed to the outer wall of the inner cylinder and the inner wall of the docking cover.

[0016] The present invention proposes a refrigeration device for an air-conditioned test room, which has the following beneficial effects: by arranging an ice-making module inside the device that can make ice in advance and automatically store ice, a large amount of ice cubes can be made in advance and sealed for storage. When cooling is required, the gas circulation module in the device is started to continuously circulate the air inside the device and the outside air. In this way, the ice cubes can be used to quickly lower the ambient temperature in the test room space, the cooling speed is faster, and some tests with lower requirements for the degree of lowering the ambient temperature can be met, with low energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a refrigeration device for an air-conditioned test room proposed by the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a refrigeration device for an air-conditioned test room proposed by the present invention. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the internal structure of a refrigeration device for an air-conditioning test room proposed by the present invention;

[0020] Figure 4 This is a schematic cross-sectional view of a refrigeration device for an air-conditioning test room proposed by the present invention;

[0021] Figure 5 This is a schematic diagram of the ice making assembly structure of a refrigeration device for an air-conditioning test room proposed by the present invention. Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the ice making assembly structure of a refrigeration device for an air-conditioning test room proposed by the present invention. Figure 2 ;

[0023] Figure 7 This is a cross-sectional schematic diagram of an ice-making assembly of a refrigeration device for an air-conditioning test room proposed by the present invention;

[0024] Figure 8 This is a schematic diagram of the internal structure of an ice-making assembly of a refrigeration device for an air-conditioning test room proposed by the present invention;

[0025] Figure 9 This is a schematic diagram of the structure of a water sprinkling pipe of a refrigeration device for an air-conditioning test room proposed by the present invention.

[0026] In the figure: 1. Insulation outer cylinder; 2. Ice storage inner cylinder; 3. Connecting cover; 4. Refrigerator; 5. Ice-making assembly; 501. Connector; 502. Fixed cylinder; 503. Fixed disk; 504. Conductive ring; 505. Docking cover; 506. Heat-conducting disk; 507. Ice-making column; 508. Second magnetic component; 509. First magnetic component; 5010. Movable cylinder; 5011. Elastic element; 5012. Fixed cylinder; 5013. Sealing ring; 5014. Friction block; 5015. Compensating mechanism; 5016. Water spraying pipe; 5017. Inner cylinder; 5018. Annular sealing strip; 6. Fan; 7. Air outlet; 8. Dial plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Example 1

[0029] Reference Figure 1-9 A refrigeration device for an air-conditioning test room includes a thermal insulation outer cylinder 1, on which a gas circulation module is provided; the gas circulation module includes a fan 6 and an air outlet 7, and a plurality of mounting holes are opened on one end of the thermal insulation outer cylinder 1, each mounting hole is provided with a fan 6, and a plurality of air outlets 7 are opened on the other end of the thermal insulation outer cylinder 1, and a switchable sealing door is installed on the mounting holes and the air outlet 7.

[0030] An ice storage inner cylinder 2 is provided in the heat-insulating outer cylinder 1. The ice storage inner cylinder 2 is connected to a driving device for driving the ice storage inner cylinder 2 to rotate. An ice-making module is provided in the ice storage inner cylinder 2.

[0031] A meltwater collection module is also provided on the thermal insulation outer cylinder 1; the meltwater collection module includes a water diversion pipe, which is provided through the lower part of the inner wall of the thermal insulation outer cylinder 1 and is connected to a meltwater collection device.

[0032] The ice storage inner cylinder 2 is cylindrical as a whole, and a connecting cover 3 is rotatably installed at both ends of the ice storage inner cylinder 2. The two connecting covers 3 are fixedly connected to the insulation outer cylinder 1. A plurality of air holes are opened through the ice storage inner cylinder 2 and the connecting covers 3.

[0033] The ice storage inner cylinder 2 is made of metal with good thermal conductivity, and a plurality of shifting plates 8 are fixedly provided on the inner wall of the ice storage inner cylinder 2 along the circumferential direction.

[0034] The driving device includes a gear ring, a gear, and a motor. The gear ring is coaxially fixedly installed on the ice storage inner cylinder 2. A gear meshing with the gear ring is provided on one side of the gear ring, and the motor is connected to the gear.

[0035] The ice-making module includes a refrigerator 4 and ice-making components 5. Several ice-making components 5 are distributed within the upper portion of the ice storage cylinder 2 and are connected to the refrigerator 4, which is used to cool the ice-making components 5. The refrigerator 4 includes an evaporator, condenser, and compressor. The evaporator is located within the device, and the ice-making components 5 are mounted on and in contact with the evaporator.

[0036] The ice-making assembly 5 includes a connector 501, a conductive column 502, an ice-making column 507, a telescopic mechanism, and a water-spraying mechanism. The conductive column 502 is connected to the refrigerator 4 via the connector 501. A corresponding ice-making column 507 is located below the conductive column 502. A first magnetic element 509 is fixed to the conductive column 502, and a second magnetic element 508 is fixed to the ice-making column 507. The first magnetic element 509 and the second magnetic element 508 attract each other. The ice-making column 507 is retractably connected to the connector 501 via the telescopic mechanism. The water-spraying mechanism is used to spray water around the lower portion of the ice-making column 507. The water-spraying mechanism includes multiple water-spraying pipes 5016, which are arranged around the ice-making column 507. The top ends of the water-spraying pipes 5016 are connected to a water supply device located outside the refrigeration unit. The water supply device inputs water into the water-spraying pipes 5016, and finally, the water is sprayed onto the ice-making column 507 from the water-spraying pipes 5016. The watering pipe 5016 includes a pipe body 5016a and a water inlet tip 5016b. The water inlet tip 5016b is provided at the end of the pipe body 5016a near the ice column 507. The water inlet tip 5016b is in the shape of a petal. If the pipe body 5016a is too close to the ice column 507, ice may form and block the water outlet. The provision of the water inlet tip 5016b can prevent this from happening.

[0037] The ice-making assembly 5 has two working states. In the initial state, the conductive column 502 and the ice-making column 507 are in contact with each other through the adsorption effect of the first magnetic component 509509 and the second magnetic component 508. At this time, the refrigerator 4 synchronously reduces the temperature of the conductive column 502 and the ice-making column 507; when the icicle on the ice-making column 507 reaches a certain weight, the gravity of the icicle separates the first magnetic component 509 and the second magnetic component 508, thereby separating the conductive column 502 and the ice-making column 507.

[0038] The telescopic mechanism includes a movable cylinder 5010, a fixed cylinder 5012, and an elastic element 5011. The movable cylinder 5010 is mounted on the ice column 507 and is fixedly connected to the ice column 507. The fixed cylinder 5012 is mounted on the ice column 507 below the movable cylinder 5010 and is nested within the movable cylinder 5010. An elastic element 5011 is also mounted on the ice column 507 within the movable cylinder 5010. The ends of the elastic element 5011 are respectively fixedly connected to the ice column 507 and the fixed cylinder 5012. The fixed cylinder 5012 is fixedly connected to the connector 501. A sealing ring 5013 is coaxially fixedly mounted on the top of the fixed cylinder 5012 and contacts the inner wall of the movable cylinder 5010. The sealing ring 5013 seals the gap between the fixed cylinder 5012 and the movable cylinder 5010. As the movable cylinder 5010 telescopes relative to the fixed cylinder 5012, most of the air inside the movable cylinder 5010 is discharged from below the fixed cylinder 5012, rather than from the gap between the two. This discharged air, having a certain temperature, accelerates the shedding of icicles from the surfaces of the icicles 507. Both the movable cylinder 5010 and the fixed cylinder 5012 are made of materials with poor thermal conductivity to slow the loss of heat generated by friction.

[0039] A frictional heat generating mechanism is disposed within the fixed cylinder 5012 and is in contact with the surface of the ice column 507. This mechanism rubs the surface of the retracting ice column 507, thereby generating heat to heat the ice column 507. The frictional heat generating mechanism includes a friction block 5014 and a compensation mechanism 5015. The inner wall of the fixed cylinder 5012 is circumferentially formed with a plurality of through-grooves, each of which houses a movable block. Each movable block within the fixed cylinder 5012 is mounted with a friction block 5014 in contact with the surface of the ice column 507. The movable blocks are all connected to the same compensation mechanism 5015. The compensation mechanism 5015 is configured to synchronously compress the multiple movable blocks toward the ice column 507, ensuring that the movable blocks drive the friction blocks 5014 to maintain close contact with the surface of the ice column 507.

[0040] Example 2

[0041] In Example 1, after the conductive column 502 is separated from the ice column 507, the top of the ice column 507 is exposed to the low-temperature air inside the refrigeration device. Most of the heat generated by friction may be lost through the top of the ice column 507, causing the icicles on the ice column 507 to fall off too slowly. Figure 5-8Another preferred embodiment of the present invention differs from Example 1 in that the conductive column 502 and the ice-making column 507 are further connected by a connecting mechanism. The connecting mechanism includes a fixed plate 503, a conductive ring 504, a docking cover 505, a heat-conducting plate 506, and an inner cylinder 5017. The fixed plate 503 is fixedly connected to the conductive column 502. A conductive ring 504 is fixed to the lower surface of the fixed plate 503 and extends into the docking cover 505. A heat-conducting plate 506 is fixed to the bottom of the docking cover 505. The ice-making column 507 passes through the docking cover 505 and is fixedly connected to the heat-conducting plate 506. An inner cylinder 5017 is also fixed to the heat-conducting plate 506. An annular sealing strip 5018 is fixed to the outer wall of the inner cylinder 5017 and the inner wall of the docking cover 505. The docking cover 505 and the inner cylinder 5017 are both made of materials with poor thermal conductivity. The first magnetic element 509 is fixed to the fixed disk 503 within the conductive ring 504, and the second magnetic element 508 is fixed to the heat-conducting disk 506 within the inner cylinder 5017. A heat-insulating layer is provided between the second magnetic element 508 and the heat-conducting disk 506 to reduce heat loss from the heat-conducting disk 506. By providing an annular sealing strip 5018, after the conductive column 502 and the ice-making column 507 are separated, the annular sealing strip 5018 can be used to seal the space above the heat-conducting disk 506 exposed between the inner cylinder 5017 and the docking cover 505, reducing air flow there. This makes it difficult for the heat-conducting disk 506 to exchange heat with the low-temperature air within the refrigeration unit, thereby preventing heat generated by friction from being transferred from the heat-conducting disk 506 to the outside world, allowing the generated heat to be fully utilized to accelerate the shedding of ice cubes.

[0042] The overall workflow of the present invention is as follows:

[0043] S1. Ice making and ice storage: The operator seals the heat-insulating outer cylinder 1 and then starts the refrigerator 4. After the temperature inside the heat-insulating outer cylinder 1 drops, the water supply device is started. The water supply device synchronously supplies water to the multiple refrigeration components of the ice storage inner cylinder 2. The input water is sprayed on the lower part of the ice-making column 507 through the multiple water spraying pipes 5016 of the water spraying mechanism of the refrigeration component. At this time, since the refrigerator 4 continuously reduces the temperature of the ice-making column 507 through the conductive column 502, the water sprayed on the ice-making column 507 gradually solidifies into an icicle. When the weight of the icicle increases to a level sufficient to separate the first magnetic component 509 from the second magnetic component 508, the ice-making column 507 with condensed icicles falls downward. At the same time, the ice-making column 507 also drives the movable cylinder 5010 to move downward. With the cooperation of the elastic element 5011, the ice-making column 507 and the movable cylinder 5010 continuously move above the fixed cylinder 5012. The ice column 507 bounces back and forth, so that the ice column 507 continuously rubs against the friction block 5014 on the fixed cylinder 5012, thereby generating heat, which is conducted to the ice column 507. The ice column 507 is no longer in contact with the conductive column 502, and its temperature rises. Combined with the heat of the water poured on the ice column 507, the contact portion between the ice column 507 and the icicle above it gradually melts, and finally the icicle detaches from the ice column 507 and falls into the ice storage inner cylinder 2 below for storage. After the icicle detaches, the weight of the ice column 507 is reduced, and it moves upward again under the restoring action of the elastic element 5011, so that the first magnetic element 509 and the second magnetic element 508 approach each other, and the second magnetic element 508 is re-adsorbed together. In this way, the above steps can be repeated between the ice column 507 and the conductive column 502 until a sufficient amount of icicles are stored in the ice storage inner cylinder.

[0044] S2, Refrigeration: Release the sealing measures of the heat-insulating outer cylinder 1, then start the gas circulation module and the driving device, and the fan 6 blows the outside air into the heat-insulating outer cylinder 1, which comes into contact with the ice cubes in the ice storage inner cylinder 2. After cooling, the air is blown out from the air outlet 7. At the same time, the driving device drives the ice storage inner cylinder 2 to rotate continuously, so that the ice storage inner cylinder 2 can continuously drive the icicles to flip up and down through the multiple paddles 8 provided therein, thereby accelerating the melting of the icicles.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A refrigeration device for an air-conditioning test room, comprising a heat-insulating outer cylinder (1), characterized in that: The heat-insulating outer cylinder (1) is provided with a gas circulation module; An ice storage inner cylinder (2) is provided in the heat-insulating outer cylinder (1), the ice storage inner cylinder (2) is connected to a driving device, the driving device is used to drive the ice storage inner cylinder (2) to rotate, and an ice-making module is provided in the ice storage inner cylinder (2); The ice-making module comprises a refrigerator (4) and an ice-making assembly (5); a plurality of the ice-making assemblies (5) are evenly distributed in the upper portion of the ice storage inner cylinder (2); the ice-making assemblies (5) are all connected to the refrigerator (4); and the refrigerator (4) is used to cool the ice-making assemblies (5); The ice-making assembly (5) includes a connector (501), a conductive column (502), an ice-making column (507), a telescopic mechanism, and a water-spraying mechanism. The conductive column (502) is connected to the refrigerator (4) through the connector (501). An ice-making column (507) corresponding to the conductive column (502) is provided below the conductive column (502). A first magnetic component (509) is fixed to the conductive column (502). A second magnetic component (508) is fixed to the ice-making column (507). The first magnetic component (509) and the second magnetic component (508) attract each other. The ice-making column (507) is telescopically connected to the connector (501) through the telescopic mechanism. The water-spraying mechanism is used to spray water around the lower part of the ice-making column (507). The heat-insulating outer cylinder (1) is also provided with a meltwater collection module.

2. The refrigeration device for an air-conditioning test room according to claim 1, characterized in that: The ice storage inner cylinder (2) is cylindrical in shape as a whole, and a connecting cover (3) is rotatably mounted on each of the two ends of the ice storage inner cylinder (2). Both connecting covers (3) are fixedly connected to the heat-insulating outer cylinder (1), and a plurality of air holes are penetrated through the ice storage inner cylinder (2) and the connecting covers (3).

3. The refrigeration device for an air-conditioning test room according to claim 2, characterized in that: The ice storage inner cylinder (2) is made of metal, and a plurality of shifting plates (8) are fixedly provided on the inner wall of the ice storage inner cylinder (2) along the circumferential direction.

4. The refrigeration device for an air-conditioning test room according to claim 2, characterized in that: The driving device comprises a gear ring, a gear, and a motor; the gear ring is coaxially fixedly mounted on the ice storage inner cylinder (2); a gear meshing with the gear ring is provided on one side of the gear ring; and the motor is transmission-connected to the gear.

5. The refrigeration device for an air-conditioning test room according to claim 1, characterized in that: The telescopic mechanism comprises a movable cylinder (5010), a fixed cylinder (5012), and an elastic element (5011); the movable cylinder (5010) is sleeved on the ice-making column (507); the movable cylinder (5010) is fixedly connected to the ice-making column (507); a fixed cylinder (5012) is sleeved on the ice-making column (507) below the movable cylinder (5010); the fixed cylinder (5012) is nested in the movable cylinder (5010); an elastic element (5011) is further sleeved on the ice-making column (507) in the movable cylinder (5010); and the fixed cylinder (5012) is fixedly connected to the connector (501).

6. The refrigeration device for an air-conditioning test room according to claim 5, characterized in that: A friction heat generating mechanism in contact with the surface of the ice column (507) is provided in the fixing cylinder (5012). The friction heat generating mechanism is used to rub the surface of the ice column (507) that is performing telescopic movement, thereby generating heat to heat the ice column (507).

7. The refrigeration device for an air-conditioning test room according to claim 1, characterized in that: The conduction column (502) and the ice-making column (507) are also connected via a connecting mechanism, which includes a fixed disk (503), a conduction ring (504), a docking cover (505), a heat-conducting disk (506), and an inner cylinder (5017). The fixed disk (503) is fixedly connected to the conduction column (502). A conduction ring (504) is fixed to the lower surface of the fixed disk (503). The conduction ring (504) extends into the docking cover (505). A heat-conducting disk (506) is fixed to the bottom of the docking cover (505). The ice-making column (507) passes through the docking cover (505) and is fixedly connected to the heat-conducting disk (506). An inner cylinder (5017) is also fixed on the heat-conducting disk (506). An annular sealing strip (5018) is fixed to the outer wall of the inner cylinder (5017) and the inner wall of the docking cover (505).

Images