Sterilization cabinet with water jacket structure
By using an inner and outer ring plate to form an air circulation channel, combined with bolted connections and heated water circulation, the problem of insufficient sealing in traditional sterilizers is solved, achieving more efficient sterilization and improved equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BOCON INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-04-23
- Publication Date
- 2026-04-28
AI Technical Summary
The welding connection between the U-shaped steel frame and the inner steel plate of traditional sterilizers leads to sealing problems, increases the risk of water leakage, and affects the reliability and sealing of the equipment.
An inner and outer ring plate are used to form an air circulation channel. The ring pipe is connected by bolts. Combined with heating water circulation and air circulation components, heat circulation and uniform conduction are achieved, avoiding welding sealing problems.
It improves the sealing and reliability of the sterilization cabinet, reduces the risk of leakage, and enhances the sterilization effect, equipment operability, and service life.
Smart Images

Figure CN224166635U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of sterilizers, and in particular to a sterilizer with a water jacket structure. Background Technology
[0002] Sterilization cabinets, as important sterilization equipment, are widely used in medical, pharmaceutical, and food processing fields. Their core function is to sterilize items using high-temperature steam or other media to ensure a sterile environment. Traditional sterilization cabinets typically employ an external water jacket structure, using circulating water within the jacket for temperature control and heat transfer.
[0003] In the existing sterilizer, all U-shaped steel members are welded to the outer surface of the inner steel plate, forming a sealed channel between the U-shaped steel members and the inner steel plate. Water circulates within this sealed channel to control the temperature. The insulation layer is fixedly connected to the side of the U-shaped steel members away from the inner steel plate. However, due to the large number of weld points between the U-shaped steel members and the inner steel plate, the increased number of weld points raises the probability of defects in individual welds, thus affecting the sealing performance of the channel and causing leaks. This requires improvement. Utility Model Content
[0004] The purpose of this application is to provide a sterilization cabinet with a water jacket structure to prevent water leakage.
[0005] This application provides a sterilizer with a water jacket structure, employing the following technical solution: It includes an inner ring plate with a cavity; several annular tubes are spaced apart on the outer surface of the inner ring plate; an outer ring plate is connected to each annular tube; the outer ring plate surrounds the annular tubes; a door is rotatably connected to the outer ring plate; the door covers the opening of the cavity and the annular tubes; a heating water circulation assembly is connected to each annular tube; the inner ring plate, the outer ring plate, and two adjacent annular tubes form an air circulation channel; the inner ring plate has several through holes communicating with the air circulation channel; and the outer ring plate is connected to the air circulation assembly.
[0006] By adopting the above technical solutions, the heated water circulation component enables water to circulate within the equipment, thereby replenishing the heat consumed by heating the inner ring plate. This raises the temperature of the ethylene oxide in the inner ring plate, thus improving its sterilization and disinfection effect on the product. The annular pipe avoids the sealing problems associated with traditional welded structures, reducing the risk of leakage and improving the reliability of the equipment. Simultaneously, the air circulation component effectively circulates air within the equipment. The flowing air absorbs heat from the annular pipe and heats the inner ring plate, enhancing the sterilization effect.
[0007] Optionally, the annular tube is provided with a protruding edge, the inner ring plate is connected with a plurality of bolts, the inner ring plate is provided with a mounting hole for the threaded end of the bolt to pass through, and the protruding edge is provided with a threaded hole for threaded engagement with the bolt.
[0008] By adopting the above technical solution, the annular pipe is equipped with a raised edge, and the inner annular plate is connected to the raised edge by bolts, replacing the traditional welding method. This structure significantly reduces the number of weld points, lowers the probability of weld defects, effectively improves the sealing performance of the sealing channel, and avoids water leakage problems. At the same time, the bolted connection method facilitates disassembly and maintenance, improving the operability and service life of the equipment.
[0009] Optionally, the air circulation assembly includes a main duct, a fan connected to the main duct, an air inlet pipe connected to the fan, and several air outlet pipes connected to the main duct. The air outlet pipes correspond one-to-one with the air circulation channel, the air outlet pipes are connected to the air circulation channel, and the air inlet pipes are connected to the cavity.
[0010] By adopting the above technical solution, the coordinated action of the main pipe, fan, air outlet pipe and air inlet pipe realizes the circulation of air in the air circulation channel, further enhancing the temperature uniformity and heat conduction efficiency inside the sterilizer.
[0011] Optionally, the heating water circulation assembly includes an extension pipe, a circulation pump connected to the extension pipe, a heat exchanger connected to the extension pipe, and several connecting pipes. Two adjacent annular pipes are connected through two connecting pipes, and the two ends of the extension pipe are respectively connected to the two annular pipes that are furthest apart.
[0012] By adopting the above technical solution, this design makes the water circulation path more reasonable, the water flow distribution more uniform, the heat exchanger increases the temperature of the water in the annular tube, and the flowing water heats the inner ring plate, thereby improving the sterilization effect.
[0013] Optionally, the connecting pipe is located within the air circulation channel, and there is a gap between the connecting pipe and the inner ring plate.
[0014] By adopting the above technical solution, the connecting pipe is set in the air circulation channel and there is a gap between it and the outer ring plate, so that the connecting pipe can effectively utilize the space in the air circulation channel for arrangement, ensuring that the air flow in the air circulation channel is not obstructed, thereby improving the overall thermal efficiency and operational stability of the sterilizer.
[0015] Optionally, several of the annular tubes are evenly distributed along the length of the inner annular plate.
[0016] By adopting the above technical solution, this design effectively avoids the problem of localized concentration or dispersion of water flow caused by uneven distribution of the ring pipe, thereby improving the overall temperature control uniformity of the sterilizer.
[0017] Optionally, the outer ring plate is connected to an insulation layer.
[0018] By adopting the above technical solution, the insulation layer can effectively reduce heat exchange between the outer ring plate and the external environment, thereby improving the overall insulation effect of the sterilizer and reducing energy consumption. Specifically, the addition of the insulation layer reduces heat loss, allowing the hot water in the water jacket structure and the hot air in the air circulation channel to maintain higher temperature stability, thus improving sterilization efficiency and saving energy.
[0019] Optionally, a sealing ring is connected between the door and the outer ring plate, the sealing ring surrounding the annular tube, and the sealing ring is used to seal the gap between the door and the outer ring plate.
[0020] By adopting the above technical solution, the sealing performance between the door and the outer ring plate is significantly improved. Specifically, by setting a sealing ring around the annular tube between the door and the outer ring plate, the possibility of water or steam leaking from the gap between the two during the operation of the sterilizer is effectively reduced, thereby ensuring the stability and reliability of the internal environment of the sterilizer.
[0021] In summary, this application includes at least one of the following beneficial technical effects:
[0022] 1. The heating water circulation component enables water to circulate within the equipment, thereby replenishing the heat consumed by heating the inner ring plate. This raises the temperature of the ethylene oxide in the inner ring plate, thus improving its sterilization and disinfection effect on the product. The ring pipe avoids the sealing problems caused by traditional welded structures, reduces the risk of leakage, and improves the reliability of the equipment.
[0023] 2. The annular tube features a raised edge, with the inner annular plate connected to the raised edge via bolts, replacing the traditional welding method. This structure significantly reduces the number of weld points, lowers the probability of weld defects, effectively improves the sealing performance of the sealing channel, and prevents water leakage. Simultaneously, the bolted connection facilitates disassembly and maintenance, enhancing the operability and service life of the equipment. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.
[0025] Figure 2 This is one of the cross-sectional views of an embodiment of this application, showing the inner ring plate.
[0026] Figure 3 yes Figure 2An enlarged view of region A.
[0027] Figure 4 This is a partial structural schematic diagram of an embodiment of this application.
[0028] Figure 5 This is a second cross-sectional view of an embodiment of this application, showing the circulation channel.
[0029] Explanation of reference numerals in the attached drawings: 1. Inner ring plate; 11. Cavity; 12. Bolt; 13. Through hole; 2. Annular pipe; 21. Raised edge; 3. Outer ring plate; 4. Insulation layer; 5. Door; 6. Heating water circulation assembly; 61. Outlet pipe; 62. Circulation pump; 63. Connecting pipe; 64. Heat exchanger; 7. Circulation channel; 8. Air circulation assembly; 81. Main pipe; 82. Fan; 84. Air outlet pipe; 85. Air inlet pipe. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1 -Appendix Figure 5 This application will be described in further detail.
[0031] This application discloses a sterilization cabinet with a water jacket structure.
[0032] Combination Figure 1 and Figure 2 As shown, it includes an inner ring plate 1, which has a cavity 11 formed around it, and one side of the inner ring plate 1 is through-hole. Several annular tubes 2 are detachably connected to the outer surface of the inner ring plate 1 at intervals. The several annular tubes 2 are distributed at intervals along the length of the inner ring plate 1, and each annular tube 2 is wrapped around the inner ring plate 1. An outer ring plate 3 is fixedly connected to the outer surface of the annular tube 2. The outer ring plate 3 has the same shape as the inner ring plate 1, but different in size. The outer ring plate 3 is wrapped around each annular tube 2. An insulation layer 4 is fixedly connected to the outer surface of the outer ring plate 3, and the insulation layer 4 is wrapped around the outer ring plate 3. A door 5 is rotatably connected to one side of the outer ring plate 3. The door 5 is used to cover the opening of the outer ring plate 3, and the door 5 covers the opening of the cavity 11 and all the annular tubes 2. A sealing ring is connected between the door 5 and the outer ring plate 3. The sealing ring surrounds the opening of the outer ring plate 3, and the sealing ring surrounds the opening of the cavity 11 and all the annular tubes 2. The sealing ring seals the gap between the door 5 and the outer ring plate 3.
[0033] Combination Figure 2 , Figure 3 and Figure 4As shown, the outer surface of the annular pipe 2 is provided with a raised edge 21, which is integrally formed with the annular pipe 2. A plurality of bolts 12 are connected to the inner ring plate 1. The inner ring plate 1 has mounting holes for the corresponding bolts 12 to pass through, and the raised edge 21 has threaded holes for threaded engagement with the corresponding bolts 12. The annular pipe 2 is connected to a heating water circulation assembly 6. The heating water circulation assembly 6 can consist of a plurality of circulation pipes and a pump fixedly connected to each circulation pipe. The number of circulation pipes is the same as the number of annular pipes 2, and both ends of the circulation pipes are connected to the corresponding annular pipe 2. In other embodiments, the heating water circulation assembly 6 includes an extension pipe 61, a circulation pump 62 fixedly connected to the extension pipe 61, a heat exchanger 64 fixedly connected to the extension pipe 61, and a plurality of connecting pipes 63. Two adjacent annular pipes 2 are connected through two connecting pipes 63, which are arranged opposite to each other. The two ends of the extension pipe 61 are fixedly connected to the two annular pipes 2 furthest apart.
[0034] like Figure 5 As shown, the inner ring plate 1, the outer ring plate 3, and two adjacent annular pipes 2 form an air circulation channel 7. The inner ring plate 1 has several through holes 13, which communicate with the air circulation channel 7. A connecting pipe 63 is located inside the air circulation channel 7, and there is a gap between the connecting pipe 63 and the inner ring plate 1. Each air circulation channel 7 is connected to four baffles, which guide the air in the air circulation channel 7 through the through holes 13 into the cavity 11. The outer ring plate 3 is connected to an air circulation assembly 8, which includes a main pipe 81, a fan 82, an air inlet pipe 85, and several air outlet pipes 84. The air circulation channel 7 corresponds to two air outlet pipes 84. The two ends of each air outlet pipe 84 are connected to one end of the air circulation channel 7 and one end of the main pipe 81, respectively. One end of the air inlet pipe 85 is connected to the fan 82, and the other end passes through the insulation layer 4, the outer ring plate 3, and the inner ring plate 1 and communicates with the cavity 11. The fan 82 is fixedly connected to the main pipe 81.
[0035] The implementation principle of a sterilization cabinet with a water jacket structure according to an embodiment of this application is as follows:
[0036] The heating water circulation component 6 enables water to circulate within the equipment, thereby replenishing the heat consumed by heating the inner ring plate 1. This raises the temperature of the ethylene oxide in the inner ring plate 1, thus improving its sterilization and disinfection effect on the product. The air circulation component 8 effectively enables air circulation within the equipment. The flowing air absorbs heat from the ring pipe 2 and heats the inner ring plate 1, improving the sterilization effect.
[0037] 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 sterilizer with a water jacket structure, characterized in that: The system includes an inner ring plate (1) with a cavity (11) formed therein. Several annular tubes (2) are connected at intervals on the outer surface of the inner ring plate (1). An outer ring plate (3) is connected to the annular tubes (2). The outer ring plate (3) surrounds the annular tubes (2). A door (5) is rotatably connected to the outer ring plate (3). The door (5) is used to cover the opening of the cavity (11) and the annular tubes (2). A heating water circulation assembly (6) is connected to the annular tubes (2). The inner ring plate (1), the outer ring plate (3), and two adjacent annular tubes (2) form a wind circulation channel (7). The inner ring plate (1) is provided with several through holes (13) communicating with the wind circulation channel (7). The outer ring plate (3) is connected to a wind circulation assembly (8).
2. The sterilizer with a water jacket structure according to claim 1, characterized in that: The annular tube (2) is provided with a protruding edge (21), the inner ring plate (1) is connected with a number of bolts (12), the inner ring plate (1) is provided with a mounting hole for the threaded end of the bolt (12) to pass through, and the protruding edge (21) is provided with a threaded hole for threaded engagement with the bolt (12).
3. The sterilizer with a water jacket structure according to claim 1, characterized in that: The air circulation assembly (8) includes a main pipe (81), a fan (82) connected to the main pipe (81), an air inlet pipe (85) connected to the fan (82), and several air outlet pipes (84) connected to the main pipe (81). The air outlet pipes (84) correspond one-to-one with the air circulation channel (7), and the air outlet pipes (84) are connected to the air circulation channel (7). The air inlet pipes (85) are connected to the cavity (11).
4. The sterilizer with a water jacket structure according to claim 1, characterized in that: The heating water circulation assembly (6) includes an extension pipe (61), a circulation pump (62) connected to the extension pipe (61), a heat exchanger (64) connected to the extension pipe (61), and several connecting pipes (63). Two adjacent annular pipes (2) are connected through two connecting pipes (63). The two ends of the extension pipe (61) are respectively connected to the two annular pipes (2) that are furthest apart.
5. The sterilizer with a water jacket structure according to claim 4, characterized in that: The connecting pipe (63) is located inside the air circulation channel (7), and there is a gap between the connecting pipe (63) and the inner ring plate (1).
6. The sterilizer with a water jacket structure according to claim 1, characterized in that: Several of the annular tubes (2) are evenly distributed along the length direction of the inner annular plate (1).
7. The sterilizer with a water jacket structure according to claim 1, characterized in that: The outer ring plate (3) is connected to the insulation layer (4).
8. The sterilizer with a water jacket structure according to claim 1, characterized in that: A sealing ring is connected between the door (5) and the outer ring plate (3). The sealing ring surrounds the annular tube (2) and is used to seal the gap between the door (5) and the outer ring plate (3).