Dry ice cleaning machine with reduced dry ice sublimation
By introducing a drive motor and blades to crush dry ice in a dry ice cleaning machine, and combining the design of a vacuum cavity layer and a semiconductor cooling chip, the problem of pre-crushing and storing volatilized dry ice in a dry ice cleaning machine is solved, thereby improving efficiency and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FILGREEN (BEIJING) TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-08-04
AI Technical Summary
Existing dry ice cleaning machines require regular replenishment of block dry ice raw materials, which affects efficiency. Furthermore, the evaporation of dry ice during storage due to ambient temperature causes waste and increases costs.
The dry ice is pulverized using a drive motor and blades inside the tank, combined with a material pump and pipeline conveying system, and the evaporation of dry ice is suppressed through a dual insulation design of a vacuum cavity layer and a semiconductor refrigeration chip.
It achieves efficient integrated crushing and conveying of dry ice raw materials, significantly improving replenishment efficiency, and reduces dry ice volatilization through double insulation, thereby reducing usage costs.
Smart Images

Figure CN224586538U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry ice cleaning machines, specifically a dry ice cleaning machine that reduces dry ice evaporation. Background Technology
[0002] A dry ice cleaner is a type of cleaning machine that uses high-pressure air to spray dry ice particles onto the work surface that needs cleaning. The physical reaction caused by the temperature difference causes different substances to detach at different contraction rates.
[0003] In the prior art, such as in patent announcement number CN207188365U, a dry ice cleaning machine is disclosed, which includes a dry ice containing chamber, a remaining quantity alarm device, a control circuit, and indicator lights. The remaining quantity alarm device includes a first sensing component, a second sensing component, a trigger, and a quantity tracking component. The quantity tracking component triggers the first and second sensing components according to the remaining dry ice quantity, and then drives the indicator lights to illuminate different colors through the control circuit to indicate the working status of the dry ice cleaning machine. The dry ice cleaning machine also includes a pressure switching device. The pressure switching device is connected to the control circuit and sends a control signal to switch the cleaning pressure when the cleaning machine is working.
[0004] While the aforementioned patents can automate the operation of dry ice cleaning machines, improve work efficiency, and save labor costs, dry ice cleaning machines require regular replenishment of dry ice raw materials. However, the large size of the dry ice raw materials affects the efficiency of dry ice cleaning, necessitating processing before replenishment, increasing the number of steps and workload. Furthermore, dry ice evaporates during storage due to the influence of ambient temperature, leading to waste and increased costs. Therefore, a dry ice cleaning machine that reduces dry ice evaporation is proposed to address these issues. Utility Model Content
[0005] To overcome the shortcomings of existing technologies, dry ice cleaning machines need to be replenished with dry ice raw materials regularly. However, the large size of the dry ice raw materials affects the efficiency of dry ice cleaning, requiring processing before replenishment, which increases the number of steps and workload. At the same time, dry ice evaporates during storage due to the influence of ambient temperature, resulting in waste and increased costs. This utility model proposes a dry ice cleaning machine that reduces dry ice evaporation.
[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The dry ice cleaning machine of this utility model for reducing dry ice evaporation includes a dry ice machine body; a storage box is set on one side of the dry ice machine body, a tank is fixedly connected to the back of the storage box, a drive motor is fixedly connected to the top of the tank, the output end of the drive motor passes through the top of the tank and is fixedly connected to a rotating rod, a plurality of blades for crushing dry ice are evenly arranged on the surface of the rotating rod from top to bottom, a material pump is fixedly connected to one side of the bottom of the storage box, the material pump's suction end is connected to a special-shaped tube, one end of the special-shaped tube is connected to the bottom of the tank, the material pump's discharge end is connected to an L-shaped tube, one end of the L-shaped tube is connected to one side of the top of the storage box; a vacuum cavity layer is formed in the inner wall of the storage box, a square groove is formed in the outer wall of the storage box, a semiconductor refrigeration chip is embedded in the square groove, and the cooling end of the semiconductor refrigeration chip is attached to the outer wall of the vacuum cavity layer.
[0007] Preferably, a square sealing ring is provided at the connection between the square groove and the semiconductor cooling chip.
[0008] Preferably, a heat sink is provided on the surface of the square groove, and the heating end of the semiconductor cooling chip faces the heat sink.
[0009] Preferably, the surface of the heat sink is provided with a fan for heat dissipation.
[0010] Preferably, the thermoelectric cooler is electrically connected to a temperature controller via wires, and the temperature controller is located on top of the heat sink.
[0011] Preferably, an openable square cover is provided on one side of the top surface of the tank, and a spray pipe for spraying and cleaning is provided on the other side of the dry ice machine body.
[0012] The advantages of this utility model are:
[0013] 1. This utility model, through the structural design of the tank, drive motor, rotating rod and blades, combined with the connection method of material pump, special-shaped pipe and L-shaped pipe, realizes the integrated function of crushing and conveying dry ice raw materials. After the operator puts in block dry ice through the square cover, the drive motor drives the rotating rod and blades to rotate at high speed to crush it. The material pump then sucks the crushed dry ice particles from the bottom of the tank through the special-shaped pipe and conveys them to the storage box through the L-shaped pipe. This structure solves the cumbersome process of pre-crushing dry ice raw materials required by traditional dry ice washing machines, reduces the workload and significantly improves the dry ice replenishment efficiency.
[0014] 2. This invention achieves dual insulation to suppress dry ice evaporation through a vacuum cavity layer on the inner wall of the storage box and a semiconductor cooling chip embedded in the outer wall. The vacuum cavity layer effectively blocks the conduction path of external heat, significantly reducing heat exchange; simultaneously, the cooling end of the semiconductor cooling chip is tightly attached to the outer wall of the vacuum layer, efficiently transferring cold energy to the interior space of the storage box and actively maintaining a low-temperature environment. This dual insulation mechanism solves the problem of dry ice evaporation and waste caused by ambient temperature during storage, reducing operating costs. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the main structure of the dry ice cleaning machine of this utility model;
[0018] Figure 3 This is a schematic diagram of the tank and semiconductor cooling chip structure of this utility model;
[0019] Figure 4 For the present utility model Figure 3 Enlarged view of the structure at point A in the middle.
[0020] In the diagram: 1. Dry ice machine body; 2. Storage tank; 3. Tank; 4. Drive motor; 5. Rotary rod; 6. Blade blade; 7. Material pump; 8. Irregular tube; 9. L-shaped tube; 10. Vacuum cavity layer; 11. Semiconductor cooling chip; 12. Square sealing ring; 13. Heat sink; 14. Fan; 15. Temperature controller; 16. Square cover; 17. Nozzle. 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 scope of protection of the present utility model.
[0022] Please see Figures 1-4As shown, a dry ice cleaning machine for reducing dry ice evaporation includes a dry ice machine body 1; a storage tank 2 is provided on one side of the dry ice machine body 1, a tank body 3 is fixedly connected to the back of the storage tank 2, a drive motor 4 is fixedly connected to the top of the tank body 3, a rotating rod 5 is fixedly connected to the output end of the drive motor 4 through the top of the tank body 3, and a plurality of blades 6 for crushing dry ice are equidistantly arranged from top to bottom on the surface of the rotating rod 5; a material pump 7 is fixedly connected to one side of the bottom of the storage tank 2, a special-shaped tube 8 is connected through the material pump 7 at the suction end, one end of the special-shaped tube 8 is connected to the bottom of the tank body 3, and an L-shaped tube 9 is connected through the material pump 7 at the discharge end, one end of the L-shaped tube 9 is connected through the top of the storage tank 2; a vacuum cavity layer 10 is formed in the inner wall of the storage tank 2, and a square groove is formed in the outer wall of the storage tank 2. A semiconductor cooling chip 11 is embedded in the square groove, and the cooling end of the semiconductor cooling chip 11 is attached to the outer wall of the vacuum cavity layer 10;
[0023] During operation, the operator opens the square cover 16 on the top of the tank 3 and adds block dry ice. The drive motor 4 is started to drive the rotating rod 5 and the blade 6 to rotate at high speed to crush the dry ice. Then, the material pump 7 is started to draw the crushed dry ice particles from the bottom of the tank 3 through the special-shaped tube 8 and transport them to the storage box 2 through the L-shaped tube 9 for temporary storage and cleaning. At the same time, the cooling end of the semiconductor refrigeration chip 11 continuously conducts cold energy to the outer wall of the vacuum cavity layer 10 of the storage box 2. Combined with the vacuum layer to isolate external heat, the low temperature environment inside the storage box 2 is maintained to inhibit the sublimation of dry ice. The crushing structure of the tank 3 and the material pump 7-special-shaped tube 8-L-shaped tube 9 conveying path realize the integration of dry ice processing. The combination of the vacuum cavity layer 10 and the semiconductor refrigeration chip 11 for double insulation reduces the volatilization of dry ice.
[0024] Furthermore, a square sealing ring 12 is provided at the connection between the square groove and the semiconductor cooling chip 11;
[0025] During operation, the square sealing ring 12 tightly fills the assembly gap between the square groove and the semiconductor cooling chip 11, blocking the leakage of cold energy and the intrusion of moisture into the vacuum layer area of the storage box 2. The square sealing ring 12 ensures the sealing of the cooling end and avoids the failure of vacuum insulation.
[0026] Furthermore, a heat sink 13 is provided on the surface of the square groove, and the heating end of the semiconductor cooling chip 11 faces the heat sink 13.
[0027] During operation, the heating end of the semiconductor cooling chip 11 discharges heat towards the heat sink 13. The metal thermally conductive structure of the heat sink 13 accelerates heat diffusion, and the heat sink 13 directionally conducts heat from the heating end of the semiconductor cooling chip 11 to maintain cooling efficiency.
[0028] Furthermore, a fan 14 for heat dissipation is provided on the surface of the heat sink 13;
[0029] When in operation, after the fan 14 starts, it drives the airflow through the hollow structure of the heat sink 13, forcing convection to reduce the temperature of the semiconductor chip. The fan 14 enhances the airflow exchange on the surface of the heat sink 13 to prevent heat accumulation from affecting the cooling performance.
[0030] Furthermore, the thermoelectric cooler 11 is electrically connected to the temperature controller 15 via wires, and the temperature controller 15 is located on the top of the heat sink 13;
[0031] During operation, the temperature controller 15 monitors the temperature of the thermoelectric cooler 11 in real time through wires and automatically adjusts the power to keep the storage box 2 stable in the target low temperature range. The temperature controller 15 intelligently controls the operating status of the thermoelectric cooler 11 to ensure a constant and stable storage environment.
[0032] Furthermore, a closable square cover 16 is provided on one side of the top surface of the tank body 3, and a spray pipe 17 for spraying and cleaning is provided on the other side of the dry ice machine body 1.
[0033] During operation, the operator holds the nozzle 17 and aims it at the surface to be cleaned. Dry ice particles in the storage tank 2 are sprayed out through the built-in conveying system to achieve cleaning. When replenishing dry ice, the square cover 16 is opened to feed material into the tank 3. The square cover 16 allows for convenient control of the opening and closing of the dry ice feeding port. The nozzle 17 directly calls the processed dry ice particles to perform the cleaning operation.
[0034] Working principle: The operator opens the openable square cover 16 of the tank 3 and puts in block dry ice. The drive motor 4 drives the rotating rod 5 and the blade 6 to rotate at high speed to crush the dry ice. The material pump 7 draws the crushed particles from the bottom of the tank 3 through the special-shaped pipe 8 and transports them to the storage box 2 for storage through the L-shaped pipe 9. During the storage process, the vacuum cavity layer 10 on the inner wall of the storage box 2 isolates external heat conduction. The cooling end of the semiconductor cooling chip 11 is continuously attached to the outer wall of the vacuum layer to transfer cold energy to maintain the low temperature inside the box. The temperature controller 15 intelligently adjusts the power of the cooling chip. At the same time, the heat from the heating end is forcibly dissipated by the heat dissipation cover 13 and the fan 14. The square sealing ring 12 ensures the sealing of the cold end. Finally, the processed dry ice particles are sprayed out through the nozzle 17 of the dry ice machine body 1 to perform the cleaning operation.
[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model 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, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A dry ice cleaning machine that reduces dry ice sublimation, characterized by: Includes a dry ice machine body (1); a storage box (2) is provided on one side of the dry ice machine body (1), a tank body (3) is fixedly connected to the back of the storage box (2), a drive motor (4) is fixedly connected to the top of the tank body (3), a rotating rod (5) is fixedly connected to the output end of the drive motor (4) through the top of the tank body (3), and a number of blades (6) for crushing dry ice are equidistantly arranged from top to bottom on the surface of the rotating rod (5), a material pump (7) is fixedly connected to one side of the bottom of the storage box (2), a special-shaped tube (8) is connected through the material pump (7) at the material pump (7), one end of the special-shaped tube (8) is connected to the bottom of the tank body (3), and an L-shaped tube (9) is connected through the material pump (7) at the discharge end, one end of the L-shaped tube (9) is connected through the top of the storage box (2); The storage box (2) has a vacuum cavity layer (10) on its inner wall and a square groove on its outer wall. A semiconductor cooling chip (11) is embedded in the square groove, and the cooling end of the semiconductor cooling chip (11) is attached to the outer wall of the vacuum cavity layer (10).
2. A dry ice cleaning machine that reduces volatile dry ice emissions as in claim 1, wherein: A square sealing ring (12) is provided at the connection between the square groove and the semiconductor cooling chip (11).
3. A dry ice cleaning machine that reduces volatile dry ice emissions as in claim 1, wherein: A heat sink (13) is provided on the surface of the square groove, and the heating end of the semiconductor cooling chip (11) faces the heat sink (13).
4. A dry ice cleaning machine that reduces volatile dry ice emissions as in claim 3, wherein: The surface of the heat sink (13) is provided with a fan (14) for heat dissipation.
5. The dry ice cleaning machine of claim 1 wherein: The semiconductor cooling chip (11) is electrically connected to the temperature controller (15) via wires, and the temperature controller (15) is located on the top of the heat sink (13).
6. The dry ice cleaning machine of claim 1 wherein: The tank (3) has an openable square cover (16) on one side of its top surface, and the dry ice machine body (1) has a spray pipe (17) for spraying and cleaning on the other side.