Low-temperature steam sterilization device

Abstract

The utility model provides a low temperature steam sterilization device belongs to the technical field of kernel low temperature steam sterilization, including low temperature steam sterilization box and setting in its low temperature steam sterilization mechanism, low temperature steam sterilization mechanism includes symmetrical rotation connection in the low temperature steam sterilization box inner chamber four corners'steam delivery pipe, the inner chamber of low temperature steam sterilization box is close to each steam delivery pipe department all is equipped with the transmission element for transmission steam, the steam delivery pipe outer arc surface along its axis evenly arranged multiple gas outlet hole all are equipped with steam spray head no.

Description

Technical Field

[0001] This utility model belongs to the field of low-temperature steam sterilization technology for kernels, and specifically relates to a low-temperature steam sterilization device. Background Technology

[0002] As an important raw material for the processing of nuts, grains and oils, kernels are susceptible to microbial contamination during storage, transportation and processing. Sterilization treatment is necessary to ensure food safety and quality. Although traditional high-temperature steam sterilization can effectively kill microorganisms, high temperatures can easily destroy the active enzymes, vitamins and other nutrients in kernels, affecting product value. Low-temperature steam sterilization technology, on the other hand, can balance sterilization effect and nutrient preservation, and has become a research hotspot in the field of kernel processing in recent years. Existing low-temperature steam sterilization devices mostly adopt a static spray mode with fixed nozzles. Steam is only transported unidirectionally through the top or side wall, resulting in excessively high steam concentration in the area near the nozzle and sparse distribution in the far end of the chamber. This creates a gradient difference in sterilization effect. Static spraying cannot quickly build a uniform steam field throughout the entire space in a low-temperature environment, resulting in delayed sterilization and long time consumption. It is easy to cause insufficient local sterilization or a decrease in overall efficiency, which seriously restricts the industrial application of low-temperature sterilization. Utility Model Content

[0003] In view of this, the present invention provides a low-temperature steam sterilization device, which can reciprocate through four sets of steam delivery pipes, so that the steam injection direction continuously and dynamically changes within the chamber, forming a rotating three-dimensional steam field covering the entire space. At the same time, the multi-stage steam injection components evenly disperse the steam and guide it to circulate upwards. The steam flow at the top and the vertically diffused steam field at the bottom form a multi-layered and multi-angle composite coverage, quickly filling the chamber space. This avoids the problems of overheating near the nozzle area and delayed sterilization at the far end caused by traditional static spraying, ensuring that all kernel surfaces within the chamber can stably contact the steam, achieving a simultaneous improvement in sterilization efficiency and uniformity.

[0004] To solve the above-mentioned technical problems, this utility model provides a low-temperature steam sterilization device, including a low-temperature steam sterilization chamber and a low-temperature steam sterilization mechanism disposed therein. The low-temperature steam sterilization mechanism includes steam delivery pipes symmetrically and rotatably connected to the four corners of the inner cavity of the low-temperature steam sterilization chamber. A steam transmission component is provided near each steam delivery pipe in the inner cavity of the low-temperature steam sterilization chamber. Multiple air outlets evenly arranged along the axis of the outer arc surface of the steam delivery pipes are each equipped with a steam nozzle. The air outlet ends of all steam nozzles are oriented towards the center of the low-temperature steam sterilization chamber. A device for synchronously driving the reciprocating swing of the steam delivery pipes is provided at the end of the low-temperature steam sterilization chamber away from its door. The reciprocating drive component and the bottom of the low-temperature steam sterilization chamber are equipped with a multi-stage steam injection assembly. This assembly uses four sets of steam delivery pipes to reciprocate and oscillate, causing the steam injection direction to continuously and dynamically change within the chamber, forming a rotating three-dimensional steam field covering the entire space. At the same time, the multi-stage steam injection assembly evenly disperses the steam and guides it to circulate upwards. The steam flow at the top and the vertically diffused steam field at the bottom form a multi-layered and multi-angle composite coverage, quickly filling the chamber space. This avoids the problems of overheating near the nozzle area and delayed sterilization at the far end caused by traditional static spraying, ensuring that all kernel surfaces inside the chamber can stably contact the steam, achieving a simultaneous improvement in sterilization efficiency and uniformity.

[0005] The transmission component includes a fixed sleeve located in the inner cavity of the low-temperature steam sterilizer near each steam delivery pipe. The fixed sleeve is rotatably connected to the outer arc surface of the adjacent steam delivery pipe on the same side. The steam delivery pipe has multiple evenly distributed air inlets on the outer arc surface of the inner cavity of its fixed sleeve. Each air inlet on the outer arc surface of the fixed sleeve is equipped with a steam connecting pipe. The steam connecting pipes all penetrate the outer side of the low-temperature steam sterilizer and extend to the outside, thus playing the role of steam transmission.

[0006] The reciprocating drive unit includes pulleys respectively located at the end of the steam conveying pipe away from the door of the low-temperature steam sterilization box. The four pulleys are connected by a transmission belt, which serves as a synchronous drive.

[0007] The reciprocating drive also includes a reciprocating drive motor mounted on the end of the low-temperature steam sterilizer away from its door via a mounting base. The reciprocating drive motor is fixedly connected to the shaft of one of the pulleys, thus achieving rapid transmission.

[0008] The multi-stage steam injection assembly includes a base frame located at the bottom of the inner cavity of the low-temperature steam sterilizer. A steam injection pipe is provided at the bottom of the inner cavity of the low-temperature steam sterilizer. Multiple exhaust holes evenly arranged along the axis of the outer arc surface of the steam injection pipe are equipped with steam nozzles. The steam injection pipe is distributed in a serpentine pattern. The base frame is a mesh-like base frame, which serves the function of multi-stage steam injection.

[0009] The low-temperature steam sterilization chamber has a protective cover at the end away from its door. The four pulleys and the drive belt are all located inside the protective cover. The protective cover has an opening that matches the output shaft of the reciprocating drive motor, and a through-hole that matches the mounting base. This provides a safety protection for the internal mechanism.

[0010] The fixed sleeves are all annular structures with open inner diameters, which ensures the smooth rotation of the steam conveying pipe while significantly reducing steam transmission resistance.

[0011] The beneficial effects of the above-mentioned technical solution of this utility model are as follows: The operator connects the steam injection pipe and steam connection pipe to an external steam source. External steam enters the annular inner cavity of the fixed sleeve through the steam connection pipe, and then enters the interior of the pipe body through the evenly distributed air inlets on the outer wall of the steam delivery pipe. The steam is then concentrated and sprayed towards the center of the low-temperature steam sterilization chamber by steam nozzles symmetrically arranged along the axial direction on the surface of the pipe body, forming a three-dimensional jet flow field with four-way opposing jets. At the same time, the reciprocating drive drives the four sets of steam delivery pipes to oscillate back and forth, so that the steam jet direction continuously and dynamically changes within the chamber, forming a rotating three-dimensional steam field covering the entire space. Simultaneously, through the multi-stage steam injection components, the steam is evenly dispersed and guided to circulate upwards. The steam flow at the top and the vertically diffused steam field at the bottom form a multi-layered and multi-angle composite coverage, quickly filling the chamber space. This avoids the problems of overheating near the nozzle area and delayed sterilization at the far end caused by traditional static spraying. Through the synergy of dynamic top spraying and vertical bottom injection, the steam quickly forms a uniformly distributed three-dimensional field in the low-temperature environment, ensuring that all kernel surfaces within the chamber can stably contact the steam, achieving a simultaneous improvement in sterilization efficiency and uniformity.

[0012] A reciprocating drive motor drives one of the pulleys to rotate, and through the synchronous linkage of the transmission belt, it drives the other three sets of steam conveying pipes to reciprocate, thus achieving the effect of synchronous driving of the steam conveying pipes. At the same time, one stage drives multiple stages, which reduces efficiency.

[0013] Steam is continuously delivered upward through a serpentine steam injection pipe. The steam nozzles on the outer wall work together with the mesh-like base to evenly disperse the steam and guide it upward circulation, thus forming a multi-stage steam injection effect and further enhancing the effect of low-temperature steam sterilization of kernels.

[0014] The protective cover is designed to provide safety protection for its internal mechanisms, ensuring that the pulleys and drive belts maintain safe and efficient transmission operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a low-temperature steam sterilization device according to the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the rear view structure of this utility model; Figure 4 This is an enlarged structural diagram of point A in this utility model; Figure 5 This is an enlarged structural diagram of section B of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 100, Low-temperature steam sterilization chamber; 200, Steam delivery pipe; 201, Steam nozzle one; 202, Fixing sleeve; 203, Air inlet; 204, Steam connection pipe; 300, Pulley; 301, Transmission belt; 302, Reciprocating drive motor; 400, Base frame; 401, Steam injection pipe; 402, Steam nozzle two; 500, Protective cover. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-5 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0018] This embodiment provides a low-temperature steam sterilization device, such as... Figure 1-5The following is shown: A low-temperature steam sterilization chamber 100 and a low-temperature steam sterilization mechanism disposed therein are included. The low-temperature steam sterilization chamber 100 consists of a chamber body and a door hinged to the open end. The low-temperature steam sterilization mechanism includes steam delivery pipes 200 symmetrically rotatably connected to the four corners of the inner cavity of the low-temperature steam sterilization chamber 100. A steam transmission component is provided near each steam delivery pipe 200 in the inner cavity of the low-temperature steam sterilization chamber 100 for transmitting steam. Multiple air outlets evenly arranged along the axis of the outer arc surface of the steam delivery pipes 200 are equipped with steam nozzles 201. The outlet ends of all steam nozzles 201 are oriented towards the center of the low-temperature steam sterilization chamber 100 to ensure that the steam can be accurately sprayed onto the surface of the kernels to be sterilized. A steam nozzle is provided at the end of the low-temperature steam sterilization chamber 100 away from its door. A reciprocating drive component is provided to drive the steam conveying pipe 200 to reciprocate. The reciprocating drive component is used to drive the steam conveying pipe 200 to reciprocate. The bottom of the inner cavity of the low-temperature steam sterilization box 100 is also provided with a multi-stage steam injection assembly. The transmission component includes a fixed sleeve 202 set in the inner cavity of the low-temperature steam sterilization box 100 near each steam conveying pipe 200. The fixed sleeve 202 is rotatably connected to the outer arc surface of the adjacent steam conveying pipe 200 on the same side. The steam conveying pipe 200 is provided with a plurality of evenly distributed air inlets 203 on the outer arc surface of the inner cavity of the fixed sleeve 202. Each air inlet on the outer arc surface of the fixed sleeve 202 is provided with a steam connecting pipe 204. The steam connecting pipe 204 passes through the outer side of the low-temperature steam sterilization box 100 and extends to the outside. The fixed sleeve 202 is an annular structure and its inner diameter is open.

[0019] The operator connects the steam injection pipe 401 and the steam connection pipe 204 to an external steam source. External steam enters the annular inner cavity of the fixed sleeve 202 through the steam connection pipe 204, and then enters the interior of the steam delivery pipe 200 through the evenly distributed air inlets 203 on the outer wall of the pipe. The steam is then concentrated and sprayed towards the center of the low-temperature steam sterilization chamber 100 by the axially symmetrically arranged steam nozzles 201 on the surface of the pipe, forming a three-dimensional jet flow field with four-way opposing jets. At the same time, the reciprocating drive drives the four sets of steam delivery pipes 200 to reciprocate, so that the steam jet direction continuously and dynamically changes within the chamber. A rotating three-dimensional steam field covering the entire space is formed. At the same time, through multi-stage steam injection components, the steam is evenly dispersed and guided to circulate upwards. The steam flow at the top and the vertically diffused steam field at the bottom form a multi-layered and multi-angle composite coverage, which quickly fills the chamber space. This avoids the problems of overheating near the nozzle area and delayed sterilization at the far end caused by traditional static spraying. Through the synergy of dynamic spraying at the top and vertical injection at the bottom, the steam quickly forms a uniformly distributed three-dimensional field in a low-temperature environment, ensuring that all kernel surfaces in the chamber can stably contact the steam, thus achieving a simultaneous improvement in sterilization efficiency and uniformity.

[0020] like Figure 1-5As shown, the reciprocating drive includes pulleys 300 respectively disposed on the end of the steam conveying pipe 200 away from the door of the low-temperature steam sterilization chamber 100. The four pulleys 300 are connected by a transmission belt 301. The reciprocating drive also includes a reciprocating drive motor 302 disposed on the end of the low-temperature steam sterilization chamber 100 away from its door via a mounting base. The reciprocating drive motor 302 is fixedly connected to the shaft of one of the pulleys 300.

[0021] The reciprocating drive motor 302 drives one of the pulleys 300 to rotate. Through the synchronous linkage of the transmission belt 301, it drives the other three sets of steam conveying pipes 200 to reciprocate, thus achieving the synchronous drive of the steam conveying pipes 200. At the same time, one stage drives multiple stages, which reduces efficiency.

[0022] like Figure 2-5 As shown, the multi-stage steam injection assembly includes a base frame 400 located at the bottom of the inner cavity of the low-temperature steam sterilizer 100. A steam injection pipe 401 is provided at the bottom of the inner cavity of the low-temperature steam sterilizer 100. A plurality of exhaust holes evenly arranged along the axis of the outer arc surface of the steam injection pipe 401 are provided with steam nozzles 402. The steam injection pipe 401 is distributed in a serpentine pattern. The base frame 400 is a mesh-shaped base frame.

[0023] Steam is continuously delivered upward through the serpentine steam injection pipe 401. The steam nozzles 402 on its outer wall work together with the mesh-like base frame 400 to evenly disperse the steam and guide it upward circulation, thereby forming a multi-stage steam injection effect and further enhancing the effect of low-temperature steam sterilization of kernels.

[0024] like Figure 1-5 As shown, the low-temperature steam sterilization chamber 100 is provided with a protective cover 500 at one end away from its door. The protective cover 500 is rectangular and has an opening on the side near the mounting part. The four pulleys 300 and the transmission belt 301 are all located inside the protective cover 500. The protective cover 500 has an opening adapted to the output shaft of the reciprocating drive motor 302, and the protective cover 500 has a through hole adapted to the mounting base.

[0025] It serves to provide safety protection for its internal mechanisms, ensuring that the pulley 300 and the transmission belt 301 maintain safe and efficient transmission operation.

[0026] The working principle of the low-temperature steam sterilization device provided by this utility model is as follows: First, the operator connects the steam injection pipe 401 and the steam connection pipe 204 to an external steam source. The external steam enters the annular inner cavity of the fixed sleeve 202 through the steam connection pipe 204, and then enters the interior of the pipe body through the evenly distributed air inlets 203 on the outer wall of the steam conveying pipe 200. The steam nozzles 201, which are symmetrically arranged along the axial direction on the surface of the pipe body, are concentrated and sprayed toward the center of the low-temperature steam sterilization chamber 100, forming a three-dimensional jet flow field with four-way opposing jets. At the same time, the reciprocating drive motor 302 drives one of the pulleys 300 to rotate. Through the synchronous linkage of the transmission belt 301, the other three sets of steam conveying pipes 200 are driven to reciprocate and swing, so that the steam jet direction continuously and dynamically changes in the chamber, forming a rotating three-dimensional jet flow field covering the entire space. The system features a steam field, continuously supplying steam upwards through a serpentine steam injection pipe 401. Steam nozzles 402 on the outer wall, working in conjunction with the mesh-like base frame 400, evenly disperse and guide the steam upwards. The upper steam flow and the vertically diffused steam field at the bottom form a multi-layered, multi-angle composite coverage, quickly filling the chamber space. This avoids the problems of overheating near the nozzles and delayed sterilization at distant points caused by traditional static spraying. Through the synergy of dynamic top spraying and vertical bottom injection, steam rapidly forms a uniformly distributed three-dimensional field in a low-temperature environment, ensuring stable contact between all kernel surfaces within the chamber and the steam. This achieves simultaneous improvement in sterilization efficiency and uniformity. Furthermore, the open-shaped fixing sleeve 202 ensures smooth rotation of the steam delivery pipe while significantly reducing steam transmission resistance, further enhancing system energy efficiency.

[0027] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A low-temperature steam sterilization device, characterized in that: The device includes a low-temperature steam sterilization chamber (100) and a low-temperature steam sterilization mechanism disposed therein. The low-temperature steam sterilization mechanism includes steam delivery pipes (200) symmetrically rotatably connected to the four corners of the inner cavity of the low-temperature steam sterilization chamber (100). The inner cavity of the low-temperature steam sterilization chamber (100) is provided with a transmission component for transmitting steam near each steam delivery pipe (200). A plurality of air outlet holes evenly arranged along the axis of the outer arc surface of the steam delivery pipe (200) are provided with steam nozzles (201). The air outlets of all the steam nozzles (201) are arranged facing the center of the low-temperature steam sterilization chamber (100). The end of the low-temperature steam sterilization chamber (100) away from its door is provided with a reciprocating drive component for synchronously driving the steam delivery pipes (200) to swing back and forth. The bottom of the inner cavity of the low-temperature steam sterilization chamber (100) is also provided with a multi-stage steam injection assembly.

2. The low-temperature steam sterilization device as described in claim 1, characterized in that: The transmission component includes a fixed sleeve (202) disposed in the inner cavity of the low-temperature steam sterilizer (100) near each steam delivery pipe (200). The fixed sleeve (202) is rotatably connected to the outer arc surface of the adjacent steam delivery pipe (200) on the same side. The steam delivery pipe (200) is provided with a plurality of evenly distributed air inlets (203) on the outer arc surface of the inner cavity of the fixed sleeve (202). Each air inlet on the outer arc surface of the fixed sleeve (202) is provided with a steam connecting pipe (204). The steam connecting pipe (204) penetrates the outer side of the low-temperature steam sterilizer (100) and extends to the outside.

3. The low-temperature steam sterilization device as described in claim 1, characterized in that: The reciprocating drive includes pulleys (300) respectively disposed at one end of the steam conveying pipe (200) away from the door of the low-temperature steam sterilization box (100), and the four pulleys (300) are connected by a transmission belt (301).

4. The low-temperature steam sterilization device as described in claim 3, characterized in that: The reciprocating drive also includes a reciprocating drive motor (302) mounted on the end of the low-temperature steam sterilizer (100) away from its door via a mounting base, the reciprocating drive motor (302) being fixedly connected to the shaft of one of the pulleys (300).

5. The low-temperature steam sterilization device as described in claim 1, characterized in that: The multi-stage steam injection assembly includes a base frame (400) located at the bottom of the inner cavity of the low-temperature steam sterilization chamber (100). The bottom of the inner cavity of the low-temperature steam sterilization chamber (100) is provided with a steam injection pipe (401). Multiple exhaust holes evenly arranged along the axis of the upper end of the outer arc surface of the steam injection pipe (401) are provided with steam nozzles (402). The steam injection pipe (401) is distributed in a serpentine pattern. The base frame (400) is a mesh-shaped base frame.

6. The low-temperature steam sterilization device as described in claim 4, characterized in that: The low-temperature steam sterilization chamber (100) is provided with a protective cover (500) at one end away from its door. The four pulleys (300) and the transmission belt (301) are all located inside the protective cover (500). The protective cover (500) has an opening adapted to the output shaft of the reciprocating drive motor (302) and a through opening adapted to the mounting base.

7. The low-temperature steam sterilization device as described in claim 2, characterized in that: The fixing sleeves (202) are all annular structures with an open inner diameter.

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