High-pressure steam sterilization cabinet
By designing a high-pressure steam sterilizer, utilizing internal and external piping for circulating steam and a stainless steel partition structure, the problems of slow heating and poor heat preservation in sterilizers are solved, achieving rapid sterilization and pressure balance, thus improving sterilization efficiency and sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-10
AI Technical Summary
Existing sterilizers have slow heating and poor heat preservation when the volume is large, and they are prone to deformation when the air pressure is too high, which affects the sealing performance.
The design adopts a high-pressure steam sterilizer, including a cabinet, jacketed pipe, partition and pipe structure. It is connected to the boiler through internal and external pipes to realize the circulation of steam in the inner and side chambers. Combined with the design of stainless steel cabinet and partition, it improves structural strength and heat preservation effect, and maintains air pressure balance through one-way pipe and filter components.
It achieves rapid heating and good heat preservation in the sterilization cabinet, improving the sterilization effect while preventing cabinet deformation and maintaining airtightness.
Smart Images

Figure CN223979964U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sterilization cabinets, and in particular to a high-pressure steam sterilization cabinet. Background Technology
[0002] A sterilization cabinet is a device that uses steam as a medium for sterilization. Typically, products to be sterilized are placed inside a sealed cabinet, and steam is filled into the cabinet to meet the sterilization requirements, thereby ensuring that the products are in a sterile state. However, when steam fills a sterilization cabinet with a large volume, the overall temperature rises slowly and the heat preservation effect is poor, resulting in a long sterilization time. Furthermore, excessively high steam pressure can easily deform the cabinet and affect its sealing performance. Therefore, a sterilization cabinet that heats up quickly is needed. Utility Model Content
[0003] To overcome the shortcomings of the prior art, the technical solution adopted by this utility model is as follows: a high-pressure steam sterilizer, including a cabinet body, a cabinet door, a jacketed tube, a partition, an inner connecting pipe, an outer connecting pipe, and a bottom pipe. The cabinet body is hinged to the cabinet door at both ends, and the cabinet body has an inner cavity. The cabinet body has two or more sets of jacketed tubes arranged in a straight line. The jacketed tubes and the cabinet body are combined to form a side cavity. The bottom of the cabinet body has a bottom pipe for connecting the jacketed tubes. A partition is fixedly connected to the outside of the cabinet body and abuts against the jacketed tube. The partition is connected to two or more sets of inner connecting pipes and outer connecting pipes. The inner connecting pipes pass through the partition and extend into the cabinet body, and the outer connecting pipes pass through the partition and extend into the jacketed tubes.
[0004] Using the above technical solution, the cabinet and jacketed pipe are connected to the boiler through the inner and outer pipes respectively. The steam generated by the boiler is injected into the inner cavity and side cavity through the inner and outer pipes respectively, so that the working temperature can reach up to 140℃ and the working pressure can reach up to 0.25MPa. The cabinet is welded from stainless steel plate, and the surface is welded with jacketed pipes to improve the structural strength of the cabinet side wall. Through the heating effect of the side cavity and the heat insulation effect of the partition, the sterilization cabinet has a good heat preservation effect after rapid heating, thus improving the sterilization effect.
[0005] The utility model is further configured such that the cabinet body forms an inner air inlet and an inner exhaust outlet for connecting an external steam pipe, an inner pressure outlet for installing a pressure gauge, and an inner protection outlet for installing a safety valve through an inner connecting pipe; the jacketed pipe forms a jacketed air inlet and a jacketed exhaust outlet for connecting an external steam pipe, a jacketed pressure outlet for installing a pressure gauge, and a jacketed protection outlet for installing a safety valve through an outer connecting pipe.
[0006] Furthermore, the outer and inner connecting pipes are provided with internal threads / clamps for connecting to external boilers / pressure gauges / safety valves.
[0007] Using the above technical solution, the boiler circulates in the inner cavity through the inner air inlet and the inner air outlet, and circulates in the side cavity through the interlayer air inlet and the interlayer air outlet, thereby controlling and balancing the air pressure on the inside and outside of the cabinet and preventing cabinet deformation. The external and internal pipes are connected to small devices such as pressure gauges and safety valves through internal threads, and the boiler pipes are connected to the external pipes through clamps to facilitate the disassembly and assembly of the pipelines.
[0008] The utility model is further configured such that the jacketed tube is a U-shaped tube with its opening facing the cabinet body, and the jacketed tube is welded to the outside of the cabinet body.
[0009] Furthermore, the cabinet is equipped with lifting rings at both ends for connecting to an external crane.
[0010] Using the above technical solution, the lifting ring is welded to the center of the jacketed tube, so as to maintain the balance of the cabinet when the sterilizer is lifted into the air by the crane.
[0011] The utility model is further configured such that a filter assembly is provided on the partition plate, the filter assembly including a one-way pipe, a filter and an external pipe, the one-way pipe being connected to the side cavity in sequence through the filter and the external pipe.
[0012] Using the above technical solution, the one-way pipe is used to connect to an external air pump. When the air pressure in the jacketed pipe is too low, the air pump quickly replenishes the gas through the filter assembly. The injected gas is filtered by the filter to prevent impurities from accumulating and clogging the jacketed pipe, thereby achieving the emergency air replenishment required for the jacketed pipe and achieving dynamic balance of air pressure inside and outside the cabinet.
[0013] The utility model is further configured such that support portions are provided at both ends of the cabinet, and the partition is snapped between the support portions.
[0014] Using the above technical solution, the partition is made of thermal insulation material and is snapped between two support parts. It is a non-load-bearing structure, which reduces the impact of external forces on the partition structure and maintains the thermal insulation effect of the sterilizer.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] The cabinet is welded from stainless steel plates, with jacketed pipes welded to its surface to improve the structural strength of the cabinet side walls. Through the heating effect of the side cavity and the heat insulation effect of the partition, the sterilization cabinet has a good heat preservation effect after rapid heating, thus improving the sterilization effect.
[0017] The embodiments of this utility model will be further described below with reference to the accompanying drawings. Attached Figure Description
[0018] Figure 1 This is the front view of the present invention;
[0019] Figure 2This is a top view of the present invention;
[0020] Figure 3 For the present utility model Figure 1 A magnified view of a section at point A in the middle;
[0021] Figure 4 For the present utility model Figure 1 A magnified view of a section at point B in the middle;
[0022] Figure 5 For the present utility model Figure 2 A magnified view of a section at point C;
[0023] In the diagram: 1 - Cabinet body, 2 - Cabinet door, 3 - Jacketed pipe, 4 - Partition, 5 - Inner pipe, 6 - Outer pipe, 7 - Bottom pipe, 8 - Filter assembly, 10 - Support, 11 - Inner cavity, 12 - Side cavity, 13 - Inner layer air inlet, 14 - Inner layer outlet, 15 - Inner layer pressure port, 16 - Inner layer protection port, 17 - Interlayer air inlet, 18 - Interlayer outlet, 19 - Interlayer pressure port, 20 - Interlayer protection port, 21 - Internal thread, 22 - Clamp, 23 - Lifting ring, 24 - One-way pipe, 25 - Filter; Detailed Implementation
[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.
[0025] Combination Figure 1 , 2 As shown, this utility model provides a high-pressure steam sterilizer, including a cabinet body 1, a cabinet door 2, a jacketed tube 3, a partition 4, an inner connecting pipe 5, an outer connecting pipe 6, and a bottom pipe 7. The cabinet body 1 is hinged to the cabinet door 2 at both ends, and the cabinet body 1 has an inner cavity 11. The cabinet body 1 has two or more sets of jacketed tubes 3 arranged in a straight line. The jacketed tubes 3 and the cabinet body 1 are combined to form a side cavity 12. The bottom of the cabinet body 1 is provided with a bottom pipe 7 for connecting the jacketed tubes 3. The partition 4 is fixedly connected to the outside of the cabinet body 1 and abuts against the jacketed tubes 3. The partition 4 is connected to two or more sets of inner connecting pipes 5 and outer connecting pipes 6. The inner connecting pipes 5 pass through the partition 4 and extend into the cabinet body 1, and the outer connecting pipes 6 pass through the partition 4 and extend into the jacketed tubes 3.
[0026] In this embodiment, the cabinet 1 forms an inner air inlet 13 and an inner exhaust outlet 14 for connecting an external steam pipe through an inner pipe 5, an inner pressure outlet 15 for installing a pressure gauge, and an inner protection outlet 16 for installing a safety valve; the jacketed pipe 3 forms a jacketed air inlet 17 and a jacketed exhaust outlet 18 for connecting an external steam pipe through an outer pipe 6, a jacketed pressure outlet 19 for installing a pressure gauge, and a jacketed protection outlet 20 for installing a safety valve. The outer pipe 6 and the inner pipe 5 are provided with internal threads 21 and clamps 22 for connecting an external boiler / pressure gauge / safety valve.
[0027] Combination Figure 3 , 4 As shown, in this embodiment, the jacketed tube 3 is a U-shaped tube with its opening facing the cabinet 1. The jacketed tube 3 is welded to the outside of the cabinet 1. The cabinet 1 has lifting rings 23 at both ends for connecting to an external crane. The lifting rings 23 are welded to the center of the jacketed tube 3. When the sterilization cabinet is lifted to the air by the crane, the cabinet 1 is kept in balance. The inner pipe 5 extends through the adjacent U-shaped tube into the cabinet 1, and the outer pipe 6 extends through the partition 4 into the U-shaped tube.
[0028] Combination Figure 5 As shown, in this embodiment, the partition 4 is provided with a filter assembly 8, which includes a one-way pipe 24, a filter 25, and an external pipe 6. The one-way pipe 24 is connected to the side cavity 12 in sequence through the filter 25 and the external pipe 6. The one-way pipe 24 is used to connect an external air pump. When the air pressure in the jacketed pipe 3 is too low, the air pump quickly replenishes the gas through the filter assembly 8. The injected gas is filtered by the filter 25 to prevent impurities from accumulating and clogging the jacketed pipe 3, thereby realizing the emergency air replenishment required for the jacketed pipe 3 and achieving dynamic balance of air pressure inside and outside the cabinet 1.
[0029] In this embodiment, the cabinet body 1 has support parts 10 at both ends, and the partition 4 is snapped between the support parts 10. The partition 4 is made of heat insulation material and is snapped between the two support parts 10. It is a non-load-bearing structure, which reduces the impact of external forces on the structure of the partition 4 and maintains the heat insulation effect of the sterilization cabinet.
[0030] The working principle of this utility model is as follows: the cabinet body 1 and the jacketed pipe 3 are connected to the boiler through the inner pipe 5 and the outer pipe 6, respectively. When the sterilization cabinet is heated, the water vapor generated by the boiler circulates in the inner cavity 11 through the inner air inlet 13 and the inner air outlet 14, and circulates in the side cavity 12 through the jacketed air inlet 17 and the jacketed air outlet 18. The steam in the side cavity 12 quickly heats the side wall of the cabinet body 1, which, together with the steam in the inner cavity 11, achieves rapid heating of the sterilization cabinet, thereby quickly disinfecting the germs in the sterilization cabinet. When the sterilization cabinet is cooled, the steam in the inner cavity 11 and the side cavity 12 is discharged through the inner air outlet 14 and the jacketed air outlet 18, respectively. Since the total amount of gas in the cabinet body 1 and the jacketed pipe 3 is different, the gas discharge time in the cabinet body 1 is relatively long. The pressure values of the cabinet body 1 and the jacketed pipe 3 are detected by the pressure gauge, and the gas in the jacketed pipe 3 is replenished in real time through the one-way pipe 24 to achieve dynamic balance of the internal and external pressure of the cabinet body 1.
Claims
1. A high pressure steam sterilizing cabinet characterized by, The utility model provides a steam boiler, including cabinet (1), cabinet door (2), jacket pipe (3), baffle (4), inner connecting pipe (5), outer connecting pipe (6) and bottom pipe (7), cabinet (1) both ends hinge connection has cabinet door (2), and be equipped with inner chamber (11) in cabinet (1), cabinet (1) is equipped with two groups above linear distribution's jacket pipe (3), and jacket pipe (3) is combined with cabinet (1) and forms side chamber (12), and the bottom pipe (7) for communicating jacket pipe (3) is equipped at the bottom of cabinet (1), and the outside fixed connection of cabinet (1) has the baffle (4) of abutting to jacket pipe (3), and baffle (4) is connected with two groups above's inner connecting pipe (5) and outer connecting pipe (6), and inner connecting pipe (5) extends to cabinet (1) through baffle (4), and outer connecting pipe (6) extends to jacket pipe (3) through baffle (4).
2. A high pressure steam sterilizing cabinet according to claim 1, characterized in that: The cabinet (1) forms an inner layer gas inlet (13) and an inner layer discharge port (14) for the outer connection of the steam pipe, an inner layer pressure port (15) for installing a pressure gauge, and an inner layer protection port (16) for installing a safety valve through the inner connecting pipe (5); the jacket pipe (3) forms a sandwich layer gas inlet (17) and a sandwich layer discharge port (18) for the outer connection of the steam pipe, a sandwich layer pressure port (19) for installing a pressure gauge, and a sandwich layer protection port (20) for installing a safety valve through the outer connecting pipe (6).
3. A high pressure steam sterilizing cabinet according to claim 2, characterized in that: The outer connecting pipe (6) and the inner connecting pipe (5) are provided with an inner thread (21) and a clamp part (22) for the outer connection of the boiler, the pressure gauge, and the safety valve.
4. A high pressure steam sterilizing cabinet according to claim 3, characterized in that: The jacket pipe (3) is a U-shaped pipe with an opening direction towards the cabinet (1), and the jacket pipe (3) is welded to the outside of the cabinet (1).
5. A high pressure steam sterilizing cabinet according to claim 4, characterized in that: The cabinet (1) is provided with a lifting ring (23) at both ends for the outer connection of a crane.
6. A high pressure steam sterilizing cabinet according to claim 2, characterized in that: The baffle (4) is provided with a filter assembly (8), which includes a one-way pipe (24), a filter (25), and an outer connecting pipe (6), and the one-way pipe (24) communicates with the side chamber (12) through the filter (25) and the outer connecting pipe (6) in sequence.
7. A high pressure steam sterilizing cabinet according to claim 1, characterized in that: The cabinet (1) is provided with a support part (10) at both ends, and the baffle (4) is clamped between the support parts (10).