Cold trap defrosting device of vacuum freeze drying equipment
By introducing components such as a cold air drying system and a condensate return pipe into the vacuum freeze-drying equipment, the problem of incomplete defrosting in existing devices has been solved, achieving rapid and uniform defrosting and rapid discharge of condensate, thus improving the efficiency and safety of the equipment.
Patent Information
- Application Number
- CN202520325506.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing vacuum freeze-drying equipment's cold trap defrosting device cannot achieve rapid and uniform defrosting, and lacks a high-pressure exhaust valve and dehydration device, resulting in incomplete and inefficient defrosting, posing safety hazards.
The system employs components such as a cold air drying inlet pipe, a cold air drying outlet pipe, a shock-proof and heat-insulating shell, a tray air inlet slot, a tray base, a tray support, a tray storage slot, a steam nozzle, and a condensate return pipe to construct a rapid cooling and drying and rapid defrosting system, ensuring the rapid discharge of condensate.
This technology enables rapid cooling and drying, as well as rapid defrosting, in vacuum freeze-drying equipment, improving performance and reducing safety hazards.
Smart Images

Figure CN223840784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing, and in particular to a defrosting device for a cold trap in a vacuum freeze-drying equipment. Background Technology
[0002] The function of the cold trap defrosting device in vacuum freeze-drying equipment is to evenly spray hot water vapor from the bottom for rapid defrosting, ensuring the most efficient and rapid defrosting, and quickly draining the condensed water, thus achieving the effect of rapid defrosting and rapid cooling and drying again.
[0003] Existing vacuum freeze-drying equipment's cold trap defrosting devices defrost by blowing hot water vapor into the defrosting tank. While easy to implement, this method cannot guarantee rapid and uniform defrosting. Furthermore, the lack of a high-pressure exhaust valve and dewatering device results in a poor user experience and potential safety hazards. For example, a Chinese patent discloses a "vacuum freeze-drying equipment cold trap defrosting device" with application number "CN202222334899.3". This device defrosts by blowing hot water vapor into the defrosting tank through a fan, failing to utilize the physical principle of hot air rising and condensation falling. This not only wastes energy but also results in incomplete and inefficient defrosting, failing to guarantee the desired performance. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a cold trap defrosting device for vacuum freeze-drying equipment. Through the cold air drying inlet pipe, cold air drying outlet pipe, anti-collision heat insulation shell, tray air inlet groove, tray base, tray support, tray storage groove, water vapor nozzle, and condensate return pipe, the cold trap defrosting device of the vacuum freeze-drying equipment can achieve rapid cooling and drying, rapid defrosting, and rapid discharge of the generated condensate, thereby obtaining better practical results.
[0005] This utility model also provides a defrosting device for a cold trap in a vacuum freeze-drying equipment, comprising: an anti-collision rubber ring, an anti-collision heat-insulating shell fixedly connected to the inner surface of the anti-collision heat-insulating shell, an inner wall of the cold trap fixedly connected to the inner surface of the anti-collision heat-insulating shell and the lower surface of the inner wall of the cold trap, a condensate recovery tank fixedly connected to the lower surface of the anti-collision heat-insulating shell, and a cold air drying inlet pipe and a cold air drying outlet pipe passing through the interior of the anti-collision heat-insulating shell; a support platform fixedly connected to the lower surface of the condensate recovery tank, an external air inlet pipe interface passing through the interior of the support platform, and the two are tightly connected; a steam nozzle fixedly connected to the upper surface of the external air inlet pipe interface, and a high-temperature resistant air inlet pipe fixedly connected to the lower surface of the external air inlet pipe interface.
[0006] According to the present invention, a cold trap defrosting device for a vacuum freeze-drying equipment has a condensate return pipe running through the interior of the support platform, and the pipes are tightly connected to each other. An outer protective cover is fixedly connected to the outer surface of the support platform.
[0007] According to the present invention, a cold trap defrosting device for a vacuum freeze-drying equipment has a support column fixedly connected to the lower surface of the support platform and a condensate recovery tank fixedly connected to the upper surface of the support platform.
[0008] According to the present invention, a cold trap defrosting device for a vacuum freeze-drying equipment includes a high-temperature resistant sealing ring fixedly connected to the inner surface of the inner wall of the cold trap, a cold trap groove provided inside the inner wall of the cold trap, an upper cover platform fixedly connected to the inner surface of the high-temperature resistant sealing ring, and a tray storage groove fixedly connected to the inner surface of the upper cover platform.
[0009] According to the present invention, a cold trap defrosting device for a vacuum freeze-drying equipment has a sealing rubber ring fixedly connected to the inner surface of the tray placement slot, and a top cover is tightly fitted to the inner surface of the sealing rubber ring.
[0010] According to the present invention, a defrosting device for a cold trap in a vacuum freeze-drying equipment has a handle fixedly connected to the upper surface of the upper cover, and a vent pipe runs through the interior of the upper cover platform.
[0011] According to the present invention, in a vacuum freeze-drying equipment cold trap defrosting device, a venting valve is tightly connected to the upper surface of the venting pipe, and the venting pipe is tightly connected to the upper cover platform.
[0012] According to the present invention, a cold trap defrosting device for a vacuum freeze-drying equipment includes a tray support fixedly connected to the lower surface of the upper cover platform, a tray base fixedly connected to the lower surface of the tray support, and a tray air inlet groove provided inside the tray base.
[0013] Beneficial effects
[0014] 1. Compared with existing technologies, the cold trap defrosting device of this vacuum freeze-drying equipment achieves rapid cooling and drying, rapid defrosting, and rapid discharge of generated condensate through the cold air drying inlet pipe, cold air drying outlet pipe, anti-collision heat insulation shell, tray air inlet groove, tray base, tray support, tray storage groove, water vapor nozzle, and condensate return pipe. Attached Figure Description
[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0016] Figure 1This is a front view structural diagram of the cold trap defrosting device of the vacuum freeze-drying equipment of this utility model;
[0017] Figure 2 This is a front view of the defrosting device of the cold trap in the vacuum freeze-drying equipment of this utility model;
[0018] Figure 3 This is a cross-sectional view of the cold trap defrosting device in the vacuum freeze-drying equipment of this utility model;
[0019] Figure 4 This is a top view of the defrosting device of the cold trap in the vacuum freeze-drying equipment of this utility model;
[0020] Figure 5 This is a bottom view of the defrosting device of the cold trap in the vacuum freeze-drying equipment of this utility model.
[0021] Legend:
[0022] 1. Vent valve; 2. Handle; 3. Top cover; 4. Anti-collision and heat-insulating shell; 5. Cold air drying inlet pipe; 6. Anti-collision rubber ring; 7. Condensate recovery tank; 8. Support platform; 9. Platform outer cover; 10. Support column; 11. High-temperature resistant inlet pipe; 12. Top cover platform; 13. Cold air drying outlet pipe; 14. Cold trap inner wall; 15. Cold trap tank; 16. Tray air inlet slot; 17. Tray base; 18. Tray bracket; 19. Tray storage slot; 20. Sealing rubber ring; 21. External air inlet pipe interface; 22. Condensate return pipe; 23. Steam nozzle; 24. Vent pipe; 25. High-temperature resistant sealing ring. Detailed Implementation
[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0024] Reference Figure 1-5This utility model discloses a defrosting device for a cold trap in a vacuum freeze-drying equipment, comprising: an anti-collision rubber ring 6, an anti-collision insulation shell 4 fixedly connected to the inner surface of the anti-collision rubber ring 6, a cold trap inner wall 14 fixedly connected to the inner surface of the anti-collision insulation shell 4, a condensate recovery tank 7 fixedly connected to the lower surface of the anti-collision insulation shell 4 and the cold trap inner wall 14, and a cold air drying inlet pipe 5 and a cold air drying outlet pipe 13 passing through the interior of the anti-collision insulation shell 4; a handle 2 fixedly connected to the upper surface of an upper cover 3, a vent pipe 24 passing through the interior of an upper cover platform 12, a vent valve 1 tightly connected to the upper surface of the vent pipe 24, and a vent pipe 24 tightly connected to the upper cover platform 12; a condensate return pipe 22 passing through the interior of a support platform 8, and the two are tightly connected; an outer platform cover 9 fixedly connected to the outer surface of the support platform 8; a support column 10 fixedly connected to the lower surface of the support platform 8, and a condensate return pipe 10 fixedly connected to the upper surface of the support platform 8. Water recovery tank 7; A support platform 8 is fixedly connected to the lower surface of the condensate recovery tank 7. An external air inlet interface 21 runs through the inside of the support platform 8. They are tightly connected. A steam nozzle 23 is fixedly connected to the upper surface of the external air inlet interface 21. A high-temperature resistant air inlet pipe 11 is fixedly connected to the lower surface of the external air inlet interface 21. A tray support 18 is fixedly connected to the lower surface of the upper cover platform 12. A tray base 17 is fixedly connected to the lower surface of the tray support 18. A tray air inlet groove 16 is provided inside the tray base 17. A high-temperature resistant sealing ring 25 is fixedly connected to the inner surface of the cold trap inner wall 14. A cold trap groove 15 is provided inside the cold trap inner wall 14. The upper cover platform 12 is fixedly connected to the inner surface of the high-temperature resistant sealing ring 25. A tray storage groove 19 is fixedly connected to the inner surface of the upper cover platform 12. A sealing rubber ring 20 is fixedly connected to the inner surface of the tray storage groove 19. The upper cover 3 is tightly fitted to the inner surface of the sealing rubber ring 20.
[0025] Working principle: During use, the cold air drying inlet pipe 5, cold air drying outlet pipe 13, anti-collision heat insulation shell 4, tray air inlet slot 16, tray base 17, tray support 18, tray storage slot 19, water vapor nozzle 23, and condensate return pipe 22 are used to achieve rapid cooling and drying, rapid defrosting, and rapid discharge of condensate generated by the cold trap defrosting device of the vacuum freeze dryer, thereby obtaining better practical results.
[0026] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A defrosting device for a cold trap in a vacuum freeze-drying equipment, characterized in that, include: The anti-collision rubber ring (6) has an anti-collision heat insulation shell (4) fixedly connected to its inner surface. The inner surface of the anti-collision heat insulation shell (4) is fixedly connected to the inner wall of the cold trap (14). The lower surface of the anti-collision heat insulation shell (4) and the inner wall of the cold trap (14) is fixedly connected to a condensate recovery tank (7). The interior of the anti-collision heat insulation shell (4) is permeated by a cold air drying inlet pipe (5) and a cold air drying outlet pipe (13). The lower surface of the condensate recovery tank (7) is fixedly connected to a support platform (8), and an external air inlet pipe interface (21) runs through the inside of the support platform (8). They are tightly connected. A steam nozzle (23) is fixedly connected to the upper surface of the external air inlet pipe interface (21), and a high-temperature resistant air inlet pipe (11) is fixedly connected to the lower surface of the external air inlet pipe interface (21).
2. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 1, characterized in that, The support platform (8) has a condensate return pipe (22) running through its interior, and the pipes are tightly connected to each other. The outer surface of the support platform (8) is fixedly connected to an outer protective cover (9).
3. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 1, characterized in that, The lower surface of the support platform (8) is fixedly connected to a support column (10), and the upper surface of the support platform (8) is fixedly connected to a condensate recovery tank (7).
4. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 1, characterized in that, A high-temperature resistant sealing ring (25) is fixedly connected to the inner surface of the cold trap inner wall (14). A cold trap groove (15) is provided inside the cold trap inner wall (14). An upper cover platform (12) is fixedly connected to the inner surface of the high-temperature resistant sealing ring (25). A tray storage groove (19) is fixedly connected to the inner surface of the upper cover platform (12).
5. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 4, characterized in that, A sealing rubber ring (20) is fixedly connected to the inner surface of the tray storage slot (19), and the upper cover (3) is tightly attached to the inner surface of the sealing rubber ring (20).
6. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 5, characterized in that, A handle (2) is fixedly connected to the upper surface of the cover (3), and a vent pipe (24) runs through the interior of the cover platform (12).
7. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 6, characterized in that, The upper surface of the vent pipe (24) is tightly connected to the vent valve (1), and the vent pipe (24) is tightly connected to the upper cover platform (12).
8. The defrosting device for a cold trap in a vacuum freeze-drying equipment according to claim 7, characterized in that, The lower surface of the upper cover platform (12) is fixedly connected to a tray bracket (18), and the lower surface of the tray bracket (18) is fixedly connected to a tray base (17). The tray base (17) is provided with a tray air inlet groove (16).
Citation Information
Patent Citations
Cold trap defrosting device of vacuum freeze drying equipment
CN217979536U