Convection heating device for thermal sterilization

Abstract

The utility model relates to the technical field of thermal sterilization, in particular to a convection heating device for thermal sterilization, which comprises a water bath kettle, a convection mechanism is arranged in the water bath kettle and is used for convection heating of liquid, and the convection mechanism comprises a main body assembly, an inner container arranged in the water bath kettle and a stainless steel cylinder frame arranged in the center of the inner container, conveying hoses are wound outside the stainless steel cylinder frame at equal intervals; a liquid inlet head and a liquid outlet head are respectively fixed at two ends of each conveying hose; the mounting components are arranged at the left and right ends of the top of the water bath kettle and are respectively used for mounting and fixing the liquid outlet head and the liquid inlet head; the conveying hose is wound on the stainless steel cylinder frame at equal intervals and is completely soaked in the inner container of the water bath kettle, convection heating sterilization is performed on the conveying hose in the process that liquid flows through the conveying hose, and compared with a traditional heat conduction mode, the heating speed is higher, the heating time can be shortened, and the production efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of thermal sterilization technology, specifically a convection heating device for thermal sterilization. Background Technology

[0002] Water baths are widely used for drying, concentrating, distilling, and impregnating chemical reagents, pharmaceuticals, and biological agents. They can also be used for constant temperature heating in water baths and other temperature tests. They are an essential tool for biological, genetic, virological, aquatic, environmental, pharmaceutical, health, biochemical, and analytical laboratories, as well as for educational and research purposes.

[0003] According to announcement number CN221753376U, a water bath with sterilization function is disclosed. This technology discloses a water bath with sterilization function, including a box body, a water bath body, a sterilization device, and a water pump device. The water bath body, sterilization device, and water pump device are located in the box body. The sterilization device has an inlet end and an outlet end. The outlet end of the sterilization device is connected to a high position at the bottom of the water bath body through the water pump device, and the inlet end of the sterilization device is connected to a low position at the bottom of the water bath body. This technology has the technical effect of "sterilization function, and its sterilization operation can realize the water bath can automatically start or stop according to the water flow, without manual operation, and can save more energy".

[0004] In existing water bath sterilization processes, the conventional practice is to first inject the liquid to be sterilized into test tubes, and then place these test tubes in the water bath for heating. However, although the water bath can provide a basic heating environment for the sterilization process, the heating efficiency and temperature uniformity of the liquid inside the test tube are often unsatisfactory due to limitations in the heat transfer efficiency between the test tube and the water bath, as well as the degree of convection mixing of the liquid inside the test tube. This not only slows down the heating rate but may also lead to significant uneven temperature distribution. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a convection heating device for heat sterilization. It features a conveying hose that is equidistantly wound around a stainless steel cylinder frame and completely immersed inside the inner tank of a water bath. The liquid is heated and sterilized by convection as it flows through the conveying hose. Compared with traditional heat conduction methods, this device has a higher heating rate, can shorten heating time, and improve production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a convection heating device for heat sterilization, comprising a water bath, wherein a convection mechanism is provided in the water bath for heating the liquid by convection, the convection mechanism comprising:

[0007] The main components include an inner tank placed inside the water bath, a stainless steel cylinder frame installed in the center of the inner tank, and a delivery hose wound at equal intervals around the outside of the stainless steel cylinder frame, with an inlet head and an outlet head fixed at both ends of the delivery hose respectively.

[0008] The mounting components are located at the left and right ends of the top of the water bath and are used to install and fix the liquid outlet and liquid inlet respectively.

[0009] A peristaltic pump assembly, mounted on a water bath, is used to control the flow rate of liquid entering the delivery hose.

[0010] Preferably, the peristaltic pump assembly includes a mounting bracket fixed to the outer wall of the right end of the water bath, a pump head mounted at the front end of the mounting bracket, a motor mounted at the rear end of the mounting bracket for driving the pump head, an elastic hose installed inside the pump head, and the left end of the elastic hose connected to the mounting assembly at the right end via a connecting pipe.

[0011] Preferably, the main body component further includes four clips fixed to the bottom of the inner liner and distributed circumferentially, four circular holes distributed circumferentially on the outer edge of the bottom of the stainless steel cylinder frame, and an arc-shaped slot at one end of each circular hole.

[0012] Preferably, the main component further includes a plurality of mounting holes circumferentially distributed on the stainless steel cylinder frame, and the delivery hose is wound around the stainless steel cylinder frame and then fixed to the outside of the stainless steel cylinder frame by cable ties in conjunction with the mounting holes.

[0013] Preferably, the mounting assembly includes bearing seats fixed to the left and right ends of the top of the water bath, with connecting heads rotatably mounted inside the bearing seats via bearings, and the connecting heads at the left and right ends being threadedly connected to the liquid outlet head and the liquid inlet head, respectively.

[0014] Preferably, the convection mechanism further includes an annular groove formed at the top of the upper end of the water bath and an annular frame fixed to the outer edge of the top of the inner liner.

[0015] Beneficial effects

[0016] This invention provides a convection heating device for heat sterilization. Compared with the prior art, it has the following advantages:

[0017] 1. By winding the conveying hose evenly around a stainless steel cylinder frame and immersing it completely inside the inner tank of the water bath, the liquid is heated and sterilized by convection as it flows through the conveying hose. Compared with traditional heat conduction methods, this method has a higher heating rate, which can shorten heating time and improve production efficiency.

[0018] 2. The device containing liquid is connected to the right end of the flexible hose, and the pump head driven by the motor squeezes the flexible hose, thereby causing the liquid inside the flexible hose to form a peristaltic wave. The movement of the peristaltic wave will push the fluid forward in the flexible hose, so that the liquid enters the delivery hose through the connecting pipe; and the liquid flow rate is controlled by the peristaltic pump assembly, thereby achieving precise control of the sterilization time and ensuring the consistency and stability of the sterilization process.

[0019] 3. The connector can be rotated to connect to the liquid outlet or liquid inlet thread, allowing the delivery hose, along with the liquid inlet and outlet, to be detached from the stainless steel cylinder. This allows for the use of delivery hoses of different lengths and diameters depending on the liquid being heated. Furthermore, by changing the heating distance and recording the real-time temperature of the internal liquid, the sterilization temperature can be precisely controlled. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a cross-sectional view of the present invention;

[0022] Figure 3 This utility model Figure 2 A schematic diagram of the structure of part A in the middle;

[0023] Figure 4 This is a schematic diagram of the main components in this utility model.

[0024] In the diagram: 1. Water bath; 2. Convection mechanism; 21. Main component; 211. Inner tank; 212. Clamp; 213. Stainless steel cylinder frame; 214. Round hole; 215. Arc-shaped groove; 216. Mounting hole; 217. Delivery hose; 218. Liquid inlet head; 219. Liquid outlet head; 22. Mounting component; 221. Shaft seat; 222. Bearing; 223. Connector; 23. Peristaltic pump assembly; 231. Mounting bracket; 232. Pump head; 233. Motor; 234. Flexible hose; 235. Connecting pipe; 24. Ring groove; 25. Ring frame. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 protection scope of the present utility model.

[0026] Please see Figure 1 - Figure 4This utility model provides a technical solution: a convection heating device for heat sterilization, including a water bath 1, wherein a convection mechanism 2 is provided in the water bath 1 for heating the liquid by convection, and the convection mechanism 2 includes:

[0027] The main component 21 includes an inner tank 211 placed inside the water bath 1, a stainless steel cylinder frame 213 installed in the center of the inner tank 211, a conveying hose 217 wound equidistantly around the outside of the stainless steel cylinder frame 213, and an inlet head 218 and an outlet head 219 fixed at both ends of the conveying hose 217 respectively.

[0028] Mounting components 22 are set at the top left and right ends of the water bath 1 and are used to install and fix the liquid outlet head 219 and the liquid inlet head 218 respectively.

[0029] The peristaltic pump assembly 23 is mounted on the water bath 1 and is used to control the flow rate of the liquid entering the delivery hose 217.

[0030] In this embodiment, by equidistantly winding the conveying hose 217 onto the stainless steel cylinder frame 213 and completely immersing it inside the inner liner 211 of the water bath 1, the liquid is heated and sterilized by convection as it flows through the conveying hose 217. Compared with the traditional heat conduction method, this method has a higher heating rate, which can shorten the heating time and improve production efficiency.

[0031] Specifically, the peristaltic pump assembly 23 includes a mounting bracket 231 fixed to the outer wall of the right end of the water bath 1, a pump head 232 mounted at the front end of the mounting bracket 231, a motor 233 mounted at the rear end of the mounting bracket 231 for driving the pump head 232, and an elastic hose 234 installed inside the pump head 232. The left end of the elastic hose 234 is connected to the mounting assembly 22 at the right end through a connecting pipe 235.

[0032] In this embodiment, a device containing liquid can be connected to the right end of the elastic hose 234, and the pump head 232 driven by the motor 233 can squeeze the elastic hose 234, thereby causing the liquid inside the elastic hose 234 to form a peristaltic wave. The movement of the peristaltic wave will push the fluid forward in the elastic hose 234, so that the liquid enters the delivery hose 217 through the connecting pipe 235. Furthermore, the liquid flow rate is controlled by the peristaltic pump assembly 23, thereby achieving precise control of the sterilization time and ensuring the consistency and stability of the sterilization process.

[0033] Specifically, the main component 21 also includes four clips 212 that are fixed inside the bottom of the inner liner 211 and distributed circumferentially, four circular holes 214 that are distributed circumferentially on the outer edge of the bottom of the stainless steel tube frame 213, and an arc-shaped slot 215 that is opened at one end of the circular hole 214.

[0034] In this embodiment, when the stainless steel cylinder frame 213 is installed inside the inner liner 211, the clamp 212 on the inner liner 211 passes through the round hole 214 on the stainless steel cylinder frame 213, and then the stainless steel cylinder frame 213 is rotated so that the clamp 212 enters the arc-shaped clamp groove 215, thereby fixing the stainless steel cylinder frame 213 in the inner liner 211; the stainless steel cylinder frame 213 can be disassembled from the inner liner 211, making it easy to remove the stainless steel cylinder frame 213 and then wrap the delivery hose 217 around its outside.

[0035] Specifically, the main component 21 also includes a number of mounting holes 216 distributed circumferentially on the stainless steel cylinder frame 213, and the delivery hose 217 is wrapped around the stainless steel cylinder frame 213 and fixed to the outside of the stainless steel cylinder frame 213 by cable ties in conjunction with the mounting holes 216.

[0036] In this embodiment, after the delivery hose 217 is wrapped around the outside of the stainless steel cylinder 213, the end of the delivery hose 217 can be tied with a cable tie, and the cable tie passes through the mounting hole 216 to fix the end of the delivery hose 217 to the stainless steel cylinder 213, so as to prevent the delivery hose 217 wrapped around the stainless steel cylinder 213 from loosening.

[0037] Specifically, the mounting assembly 22 includes a bearing 221 fixed to the left and right ends of the top of the water bath 1. The bearing 221 has a connector 223 rotatably mounted inside it via a bearing 222, and the connectors 223 at the left and right ends are threadedly connected to the liquid outlet 219 and the liquid inlet 218, respectively.

[0038] In this embodiment, the connector 223 can be rotated to thread it onto the outlet head 219 or the inlet head 218, so that the delivery hose 217, together with the inlet head 218 and the outlet head 219, can be disassembled from the stainless steel cylinder frame 213. This allows for the replacement of delivery hoses 217 of different lengths and diameters depending on the liquid being delivered and heated. Furthermore, by changing the heating distance and recording the real-time temperature of the internal liquid, the sterilization temperature can be precisely controlled.

[0039] Specifically, the convection mechanism 2 also includes an annular groove 24 opened at the top of the water bath 1 and an annular frame 25 fixed to the outer edge of the top of the inner liner 211.

[0040] In this embodiment, after the inner liner 211 is installed inside the water bath 1, the annular groove 24 is embedded in the annular frame 25, so that the inner liner 211 can be disassembled from the water bath 1, making it easy to remove the inner liner 211 for cleaning; and after each experiment, the delivery hose 217 can be cleaned and emptied with 75% alcohol to ensure the accuracy and consistency of the next experiment.

[0041] The working principle and usage process of this utility model are as follows: First, a device containing liquid can be connected to the right end of the elastic hose 234, and the pump head 232 is driven by the motor 233 to squeeze the elastic hose 234, thereby causing the liquid inside the elastic hose 234 to form a peristaltic wave. The movement of the peristaltic wave will push the fluid forward in the elastic hose 234, so that the liquid enters the delivery hose 217 through the connecting pipe 235.

[0042] Then, by equidistantly winding the delivery hose 217 onto the stainless steel cylinder frame 213 and completely immersing it inside the inner tank 211 of the water bath 1, the liquid is heated and sterilized by convection as it flows through the delivery hose 217. Compared with the traditional heat conduction method, this method has a higher heating rate, which can shorten the heating time and improve production efficiency. Furthermore, the peristaltic pump assembly 23 controls the liquid flow rate, thereby achieving precise control of the sterilization time and ensuring the consistency and stability of the sterilization process.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A convection heating device for heat sterilization, comprising a water bath (1), characterized in that: The water bath (1) is provided with a convection mechanism (2) for heating the liquid by convection. The convection mechanism (2) includes: The main component (21) includes an inner liner (211) placed inside the water bath (1), a stainless steel cylinder frame (213) installed in the center inside the inner liner (211), a conveying hose (217) wound equidistantly around the outside of the stainless steel cylinder frame (213), and an inlet head (218) and an outlet head (219) fixed at both ends of the conveying hose (217). The mounting components (22) are set at the top left and right ends of the water bath (1) and are used to install and fix the liquid outlet (219) and the liquid inlet (218) respectively. A peristaltic pump assembly (23) is mounted on the water bath (1) and is used to control the flow rate of liquid entering the delivery hose (217).

2. The convection heating device for heat sterilization according to claim 1, characterized in that: The peristaltic pump assembly (23) includes a mounting bracket (231) fixed to the outer wall of the right end of the water bath (1), a pump head (232) mounted at the front end of the mounting bracket (231), a motor (233) mounted at the rear end of the mounting bracket (231) and used to drive the pump head (232), an elastic hose (234) installed inside the pump head (232), and the left end of the elastic hose (234) connected to the mounting assembly (22) at the right end through a connecting pipe (235).

3. The convection heating device for heat sterilization according to claim 1, characterized in that: The main component (21) also includes four clips (212) fixed inside the bottom of the inner liner (211) and distributed in a circular pattern, four circular holes (214) distributed in a circular pattern on the outer edge of the bottom of the stainless steel tube frame (213), and an arc-shaped slot (215) opened at one end of the circular hole (214).

4. A convection heating device for heat sterilization according to claim 1, characterized in that: The main component (21) also includes a number of mounting holes (216) distributed circumferentially on the stainless steel tube frame (213), and the delivery hose (217) is wrapped around the stainless steel tube frame (213) and fixed to the outside of the stainless steel tube frame (213) by cable ties in conjunction with the mounting holes (216).

5. A convection heating device for heat sterilization according to claim 1, characterized in that: The mounting assembly (22) includes a bearing seat (221) fixed at the left and right ends of the top of the water bath (1). The bearing seat (221) has a connector (223) rotatably mounted inside through a bearing (222), and the connectors (223) at the left and right ends are threadedly connected to the liquid outlet (219) and the liquid inlet (218) respectively.

6. A convection heating device for heat sterilization according to claim 1, characterized in that: The convection mechanism (2) also includes an annular groove (24) opened at the top of the upper end of the water bath (1) and an annular frame (25) fixed to the outer edge of the top of the inner liner (211).

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