Sterilization inner chamber coil pipe structure
By employing a design that connects each layer of coils in series in the sterilization equipment, and utilizing the flow channels with rectangular tubes and guide tubes arranged in an alternating manner, the problem of temperature difference within the sterilization chamber is solved, achieving uniform temperature distribution and efficient sterilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIANYUNGANG BEST MECHANICAL EQUIP CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-05-19
AI Technical Summary
Existing sterilization equipment suffers from significant temperature differences at various points within the chamber, affecting equipment operating efficiency and product quality stability.
The design employs a series connection of each layer of coils, including two sets of rectangular tubes and guide tubes. Stable flow channels are formed by staggered partition plates, and the connection of straight and serpentine tubes ensures uniform distribution of hot and cold media.
It effectively reduces temperature differences within the sterilization chamber, ensures uniform heat distribution, improves sterilization temperature consistency and efficiency, simplifies structural design, and reduces production costs.
Smart Images

Figure CN224251827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sterilization equipment technology, and in particular to a sterilization chamber coil structure. Background Technology
[0002] Currently, in the market application field, equipment based on coils to achieve heating and cooling functions is commonplace. Traditional Chinese medicine powder sterilizers, freeze dryers, and drying cabinets are typical examples. These types of equipment have a variety of structural forms. However, in actual application, many structural types have revealed the problem of significant temperature differences at various points in the inner chamber. This may not only affect the operating efficiency of the equipment, but also pose a potential threat to the stability of product quality. Utility Model Content
[0003] The technical problem to be solved by this utility model is to address the shortcomings of the existing technology by providing a unique design that uses each layer of coils connected in series, which can effectively reduce the temperature difference inside the sterilization cabinet, and the overall structure is simple, clear and easy to process and manufacture.
[0004] The technical problem to be solved by this utility model is achieved through the following technical solution. This utility model is a sterilization chamber coil structure, including two sets of coils respectively installed on the left and right sides of the sterilization chamber. A movable gap is left between the two sets of coils for cooperation with the sterilization trolley. Each set of coils includes two rectangular tubes respectively for vertically fixed installation on the inner wall of the sterilization chamber. Several horizontally arranged guide tubes are fixedly connected between the two rectangular tubes. The guide tubes are evenly distributed from top to bottom. A sterilization gap is left between two adjacent guide tubes for cooperation with the sterilization trolley tray. Several partition plates are staggered inside the two rectangular tubes for cooperation with the guide tubes, so as to form a flow channel for smooth flow of hot and cold media between the two rectangular tubes and the guide tubes. The openings of the two rectangular tubes are closed. Inlet and outlet ports for input and output of hot and cold media are provided at the top and bottom of one of the rectangular tubes.
[0005] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: For the sterilization inner chamber coil structure described above, the guide tube includes a straight tube for communicating with one of the rectangular tubes and a serpentine tube for communicating with the other rectangular tube. The straight tube is fixedly connected to the serpentine tube through an elbow.
[0006] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the sterilization inner chamber coil structure described above, the coil structure also includes a frame and several support tubes for supporting the guide tube. The frame is fixedly connected to the rectangular tube, and the support tubes are all fixedly connected to the frame.
[0007] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the sterilization inner chamber coil structure described above, the support tube is in the shape of a cuboid.
[0008] The technical problem to be solved by this utility model can also be further achieved by the following technical solution: For the sterilization inner chamber coil structure described above, each coil has 10 guide tubes, 5 partition plates are set in the rectangular tube where the inlet and outlet are located, and 4 partition plates are set in another rectangular tube.
[0009] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the sterilization inner chamber coil structure described above, the guide tube is a circular tube.
[0010] The technical problem to be solved by this utility model can also be further achieved through the following technical solution: for the sterilization inner chamber coil structure described above, the rectangular tube, the guide tube, and the partition plate are all made of stainless steel.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model connects each layer of coils in series, so that the hot and cold media flow at a stable flow rate and direction, avoiding media accumulation or excessively slow flow caused by local flow rate differences, ensuring that heat is evenly distributed in the coils, reducing temperature differences in different locations in the sterilization chamber, and ensuring consistent sterilization temperature.
[0013] 2. The rectangular tube of this utility model has staggered partition plates inside, which guide the medium to flow along a specific path, extend the flow path, increase the heat exchange area, and make the heat transfer more complete. It can more accurately transfer the temperature to each area of the inner chamber and effectively reduce the temperature gradient.
[0014] 3. The coil structure of this utility model consists of two sets of coils, left and right. Each set contains only two rectangular tubes and several guide tubes. The structure is simple and clear, and designers can quickly understand and draw drawings, reducing design complexity and cost.
[0015] 4. The rectangular tube, guide tube and partition plate of this utility model have mature processing technology, low procurement and processing difficulty, and no need for high-precision complex equipment and special processes for assembly. This can reduce production costs, improve production efficiency and facilitate large-scale promotion. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the coil of this utility model;
[0018] Figure 3This is a side view of the structure of the coil of this utility model;
[0019] Figure 4 This is a top view of the structure of the coil of this utility model;
[0020] Figure 5 This is a schematic diagram of the structure of this utility model during heating;
[0021] Figure 6 This is a side view of the structure of this utility model during heating;
[0022] Figure 7 This is a top view of the structure of this utility model during heating;
[0023] Figure 8 This is a schematic diagram of the structure of this utility model during cooling;
[0024] Figure 9 This is a side view of the structure of this utility model during cooling;
[0025] Figure 10 This is a top view of the structure of this utility model during cooling. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0027] Reference Figure 1-4 A sterilization chamber coil structure includes two sets of coils 2, which are respectively installed on the left and right sides of the sterilization chamber 1. This double-sided layout can evenly cover the space of the sterilization chamber 1, ensuring a more balanced heat distribution. A movable gap is left between the two sets of coils 2 for cooperation with the sterilization carriage 3. It is perfectly adapted to the sterilization carriage 3, which not only ensures that the carriage 3 can smoothly enter and exit the sterilization chamber 1, but also avoids the coils 2 interfering with the operation of the carriage 3, thus fully optimizing the space utilization of the sterilization chamber 1.
[0028] Specifically, each coil 2 includes two rectangular tubes 5 that are vertically fixed to the inner wall of the sterilization chamber 1. Several horizontally arranged guide tubes 8 are fixedly connected between the two rectangular tubes 5. The guide tubes 8 are evenly distributed from top to bottom to form a multi-layer structure. A sterilization gap is left between two adjacent guide tubes 8 to cooperate with the sterilization trolley 3 tray 4. This gap is used to ensure that the tray 4 can be placed smoothly and that the heat can be applied to the items to be sterilized from all directions, thereby improving the sterilization effect.
[0029] Preferably, the guide tube 8 includes a straight tube 9 for communicating with one of the rectangular tubes 5 and a serpentine tube 12 for communicating with the other rectangular tube 5. The straight tube 9 is fixedly connected to the serpentine tube 12 through an elbow 10. This design cleverly combines the simplicity and efficiency of the straight tube 9 with the extended path advantage of the serpentine tube 12. The straight tube 9 can quickly guide the medium into a specific area, while the serpentine tube 12 extends the heat exchange time and enhances the heat exchange efficiency by increasing the flow path of the medium in the coil 2, making the heat transfer more complete. More preferably, the guide tube 8 is a circular tube with no sharp edges inside, resulting in low resistance when the medium flows, effectively reducing energy loss and ensuring smooth flow of hot and cold media. At the same time, the circular structure has strong pressure resistance and can withstand high pressure during sterilization, ensuring the stability and reliability of the coil 2 structure and reducing the risk of medium leakage.
[0030] The installation method of the partition plate 6 is as follows: First, make long small holes on both the left and right sides of the position where the partition plate 6 needs to be installed on the rectangular tube 5 (the size of the holes is the same as the size of the partition plate 6). Then, insert the partition plate 6 through the long small holes and pass through the rectangular tube 5. After welding the partition plate 6 to the rectangular tube 5, cut off the excess part of the partition plate 6 and grind it flat to achieve the sealing effect. The height of the partition plate 6 should be as consistent as possible with the height of the rectangular tube 5 so that the upper and lower edges of the partition plate 6 can be as close as possible to the inner wall of the rectangular tube 5 to ensure the partition effect of the partition plate 6 on the rectangular tube 5. Of course, even if there are a few gaps, it does not matter, as long as it can block most of the hot and cold media and allow them to flow through the guide pipe 8 as much as possible.
[0031] To ensure the stability of the guide tube 8, the coil structure also includes a frame 7 and several support tubes 11 for supporting the guide tube 8. The frame 7 is fixedly connected to the rectangular tube 5, and the support tubes 11 are all fixedly connected to the frame 7. The support tubes 11 are evenly distributed below the guide tube 8, which can support the guide tube 8 and prevent the guide tube 8 from deforming or sagging due to its own weight or medium pressure, maintain the shape and position stability of the guide tube 8, and ensure smooth medium flow. Preferably, the support tube 11 is in the shape of a cuboid. This shape is simple to process, has low cost, and has a large contact area with the frame 7 and the guide tube 8, which can provide more stable support.
[0032] Several partition plates 6 are staggered and spaced within the two rectangular tubes 5 to cooperate with the guide pipe 8, forming a flow channel for smooth flow of hot and cold media between the two rectangular tubes 5 and the guide pipe 8. The staggered arrangement of the partition plates 6 can guide the hot and cold media to form a smooth flow channel between the two rectangular tubes 5 and the guide pipe 8, so that the media flows in the coil 2 along a specific path, optimizing the media flow path and improving heat exchange efficiency.
[0033] To facilitate the input and output of hot and cold media, the openings of the two rectangular tubes 5 are both closed, and inlets and outlets are provided at the top and bottom of one of the rectangular tubes 5.
[0034] In actual use, each set of coil 2 has 10 guide tubes 8, 5 partition plates 6 are installed in the rectangular tube 5 where the inlet and outlet are located, and 4 partition plates 6 are installed in another rectangular tube 5. They are reasonably distributed in the inner chamber space to form a dense heat transfer network, so that the heat is evenly distributed in the sterilization chamber 1. It can simultaneously heat or cool items to be sterilized at different heights, improve sterilization efficiency, and shorten sterilization time.
[0035] The rectangular tube 5, the guide tube 8, and the partition plate 6 are all made of stainless steel, which has excellent corrosion resistance. During the sterilization process, they will come into contact with various chemical agents and high-temperature steam. Stainless steel can effectively resist the erosion of these substances, prevent the coil 2 structure from rusting and corroding, extend its service life, and reduce maintenance costs.
[0036] refer to Figure 5-7 When the sterilization chamber 1 uses the heating function of coil 2, the internal fluid flow diagram is as follows: the steam medium enters the rectangular tube 5 through the inlet and outlet at the top of the rectangular tube 5 → enters the first layer of guide tube 8, and enters the other side of the rectangular tube 5 through the straight tube 9, elbow 10, and serpentine tube 12. Since the partition plate 6 is installed in the rectangular tube 5 on the other side, the steam medium is forced to turn and enter the next layer of guide tube 8 → repeat left and right to the bottom layer until it flows out from the inlet and outlet at the bottom of the rectangular tube 5.
[0037] refer to Figure 8-10 When the sterilization chamber 1 uses the cooling function of the coil 2, the internal fluid flow diagram is as follows: the cold water medium enters the rectangular tube 5 through the inlet and outlet at the bottom of the rectangular tube 5 → enters the first layer of guide tube 8, and enters the other side of the rectangular tube 5 through the round tube, elbow 10 and camera tube. Since the partition plate 6 is installed in the other side of the rectangular tube 5, the fluid is forced to turn and enter the upper layer of guide tube 8 → repeat left and right to the top layer until it flows out from the inlet and outlet at the top of the rectangular tube 5.
Claims
1. A sterilization chamber coil structure, characterized in that: The system includes two sets of coils, one for installation on the left and one on the right sides of the sterilization chamber. A clearance is provided between the two sets of coils for movement when used with the sterilization trolley. Each set of coils includes two rectangular tubes for vertical installation on the inner wall of the sterilization chamber. Several horizontally arranged guide tubes are fixedly connected between the two rectangular tubes. The guide tubes are evenly distributed from top to bottom. A sterilization clearance is provided between adjacent guide tubes for use with the sterilization trolley tray. Several partition plates are staggered inside the two rectangular tubes to form a flow channel for smooth flow of hot and cold media between the two rectangular tubes and the guide tubes. The openings of the two rectangular tubes are closed. Inlet and outlet ports for input and output of hot and cold media are provided at the top and bottom of one of the rectangular tubes.
2. The sterilization chamber coil structure according to claim 1, characterized in that: The guide pipe includes a straight pipe for communicating with one of the rectangular pipes and a serpentine pipe for communicating with the other rectangular pipe, the straight pipe being fixedly connected to the serpentine pipe via an elbow.
3. The sterilization chamber coil structure according to claim 1 or 2, characterized in that: The coil structure also includes a frame and several support tubes for supporting the guide tube. The frame is fixedly connected to the rectangular tube, and the support tubes are all fixedly connected to the frame.
4. The sterilization chamber coil structure according to claim 3, characterized in that: The support tube is generally rectangular in shape.
5. The sterilization chamber coil structure according to claim 1, characterized in that: Each coil has 10 guide tubes, with 5 partition plates inside the rectangular tube where the inlet and outlet are located, and 4 partition plates inside another rectangular tube.
6. The sterilization chamber coil structure according to claim 1, characterized in that: The guide tube is a circular tube.
7. The sterilization chamber coil structure according to claim 1 or 6, characterized in that: The rectangular tube, the guide tube, and the partition plate are all made of stainless steel.