A temperature controllable sterilization device

Abstract

The utility model relates to the technical field of sterilization device, disclose a temperature controllable sterilization device, including sterilization unit, be equipped with the sterilization cavity for to material sterilization processing in sterilization unit, the steam generator is connected with steam generator through the air inlet pipe of sterilization cavity, steam generator is used for conveying steam to sterilization cavity through the air inlet pipe, still be equipped with the feed pipe for material input and the discharge pipe for material output on the sterilization cavity, be equipped with first control valve in feed pipe and discharge pipe, first control valve is used for adjusting the flow of feed pipe and discharge pipe, be equipped with second control valve on the air inlet pipe, and second control valve is used for adjusting the conveying amount of steam, still include detection unit and control unit, detection unit is used for detecting the sterilization environment of sterilization unit, and control unit is used for adjusting the opening and close of first control valve and second control valve according to the detection result of detection unit, the utility model has simple structure, the beneficial effect of material sterilization effect is good.

Description

Technical Field

[0001] This utility model relates to the field of sterilization device technology, specifically to a temperature-controllable sterilization device. Background Technology

[0002] A sterilization device is an instrument that kills or removes bacteria and other microorganisms, including bacterial spores and non-pathogenic microorganisms, from food or goods. Based on their sterilization principles, they can generally be divided into three types: moist heat sterilization, dry heat sterilization, and chemical sterilization. Among these, steam sterilization, a type of moist heat sterilization, uses high-temperature steam to kill bacteria or microorganisms. Due to the strong penetrating power of steam, proteins and protoplasmic colloids denature and coagulate under moist heat conditions, enzyme systems are easily destroyed, and steam condenses into water inside cells, releasing latent heat to further increase the temperature and enhance sterilization power. A steam sterilizer includes a sterilizing pot, which is connected to a steam pipe for inputting steam. By supplying steam into the sterilizing pot, the required temperature is maintained, thus performing the sterilization operation.

[0003] For example, patent document CN 106955363A discloses a vertical steam sterilization device, including a sterilization chamber, a steam tank, and a steam generator. The steam tank is fitted outside the sterilization chamber, and the steam generator is located below the steam tank. Multiple circular through holes are arranged on the outer shell of the sterilization chamber. One top side of the steam tank is connected to the steam generator via an air inlet pipe, and the other bottom side of the steam tank is connected to the steam generator via a recovery pipe. The steam generator contains a water storage tank and a high-temperature evaporator, located directly above the water storage tank to facilitate high-temperature evaporation of the internal water into steam. This technical solution sterilizes with steam, allows for steam recycling, maximizes the contact area between the steam and the material, and utilizes vertical steam sterilization, resulting in excellent performance.

[0004] While the aforementioned technical solutions can sterilize materials using steam, the steam pressure delivered to the sterilization chamber is prone to fluctuations during the sterilization process. The temperature inside the chamber decreases due to the reduced pressure. Existing sterilization devices typically feed materials at a constant rate, meaning the material feed rate cannot be proportional to changes in steam temperature and pressure. When the material feed rate and steam pressure do not match, incomplete sterilization can occur, affecting the sterilization effect. Utility Model Content

[0005] The present invention aims to provide a temperature-controllable sterilization device to solve the technical problem in the prior art where the input of materials and pressure changes are not proportional, thus affecting the sterilization effect of the materials.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a temperature-controllable sterilization device, comprising a sterilization unit, wherein the sterilization unit is provided with a sterilization chamber for sterilizing materials, the sterilization chamber is connected to a steam generator via an air inlet pipe, the steam generator being used to supply steam to the sterilization chamber through the air inlet pipe; the sterilization chamber is also provided with an inlet pipe for material input and an outlet pipe for material output, wherein the inlet pipe and the outlet pipe are provided with a first control valve, the first control valve being used to adjust the flow rate of the inlet pipe and the outlet pipe, and the air inlet pipe is provided with a second control valve, the second control valve being used to adjust the steam delivery amount; further comprising a detection unit and a control unit, wherein the detection unit is used to detect the sterilization environment of the sterilization unit, and the control unit is used to adjust the opening and closing of the first control valve and the second control valve according to the detection results of the detection unit.

[0007] The principle and advantages of this scheme are as follows: During the sterilization process, the material to be sterilized is conveyed into the sterilization chamber of the sterilization unit through the feed pipe. The sterilization unit uses a steam generator to sterilize the material in the sterilization chamber at high temperature. After sterilization, the material is output through the discharge pipe. During the sterilization process, the control unit adjusts the first control valve based on the detection results from the detection unit within the sterilization chamber, ensuring that the input and output speeds of the material through the feed and discharge pipes match the current steam pressure and sterilization temperature inside the sterilization chamber.

[0008] In this solution, during the sterilization process of materials, the steam pressure inside the sterilization chamber is monitored in real time. When the steam pressure inside the sterilization chamber decreases or increases, the feeding and discharging speeds of the feed and discharge pipes can be adjusted in a timely manner. This ensures that the feeding and discharging speeds of the feed and discharge pipes match the actual conditions of the sterilization chamber, guaranteeing that the materials can be fully sterilized within the sterilization chamber. This ensures both the sterilization effect and the sterilization efficiency of the materials.

[0009] Preferably, as an improvement, the sterilization chamber is also connected to an exhaust pipe, which is used to output the gas inside the sterilization chamber; a second control valve is provided inside the exhaust pipe. This allows the gas inside the sterilization chamber to be discharged in a timely manner, facilitating the input of steam, while the second control valve on the exhaust pipe allows the exhaust speed to be dynamically adjusted according to actual needs, ensuring the stability of the pressure inside the sterilization chamber.

[0010] Preferably, as an improvement, the detection unit includes a first sensor for detecting the pressure inside the sterilization chamber. By detecting the pressure inside the sterilization chamber, the corresponding temperature can be calculated based on the pressure value. This ensures that the temperature can be monitored in real time during the sterilization process, while also detecting the pressure holding status inside the sterilization chamber, thus ensuring the accuracy of the sterilization parameters of the sterilization device.

[0011] Preferably, as an improvement, the detection unit further includes a second sensor for detecting the flow rate of the feed pipe and the discharge pipe. This allows for timely monitoring of the material speed conveyed by the feed pipe and the discharge pipe, facilitating the control unit to compare and analyze the current material feed rate and discharge rate with the parameters of the sterilization chamber.

[0012] Preferably, as an improvement, the second sensor on the feed pipe is located at the end of the feed pipe closer to the sterilization chamber, and the second sensor on the discharge pipe is located at the end of the discharge pipe farther from the sterilization chamber. This allows the second sensor to detect the amount of material conveyed after passing through the first control valve when detecting the feed pipe and the discharge pipe, thereby improving the accuracy of the detection unit's detection of the adjustment result of the first control valve.

[0013] Preferably, as an improvement, the control unit is further configured to adjust the first control valve based on the detection result of the second sensor. This allows for precise adjustment of the opening and closing size of the first control valve based on the detection value of the second sensor when adjusting the first control valve. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the temperature-controllable sterilization device in Embodiment 1 of this utility model.

[0015] Figure 2 This is a schematic diagram of the temperature-controllable sterilization device in Embodiment 2 of this utility model. Detailed Implementation

[0016] The following detailed description illustrates the specific implementation method:

[0017] The reference numerals in the accompanying drawings include: sterilization unit 1, housing 101, sterilization chamber 102, feed pipe 103, discharge pipe 104, air inlet pipe 105, exhaust pipe 106, first control valve 107, second control valve 108, steam generator 2, detection unit 3, first sensor 301, and second sensor 302.

[0018] Example 1

[0019] As attached Figure 1As shown, a temperature-controllable sterilization device includes a sterilization unit 1 and a steam generator 2 connected to the sterilization unit 1. The steam generator 2 is used to supply steam into the sterilization unit 1, and the sterilization unit 1 is used to sterilize materials by means of steam.

[0020] The sterilization unit 1 includes a housing 101, and a sterilization chamber 102 is provided inside the housing 101. The sterilization chamber 102 is used to contain the material to be sterilized. The sterilization unit 1 has an inlet and an outlet, both of which are connected to the sterilization chamber 102. An inlet pipe 103 is connected to the inlet, which is used to transport the material to be sterilized into the sterilization chamber 102. An outlet pipe 104 is connected to the outlet, which is used to discharge the sterilized material from the sterilization chamber 102.

[0021] The sterilization unit 1 is also provided with an air inlet and an air outlet, both of which are connected to the sterilization chamber 102. The air inlet is connected to the steam generator 2 via an air inlet pipe 105, which is used to transport steam from the steam generator 2 to the sterilization chamber 102. An exhaust pipe 106 is connected to the exhaust outlet, which is used to discharge the gas inside the sterilization chamber 102. The specific structures of the sterilization unit 1 and the steam generator 2 are existing technologies and will not be described in detail here.

[0022] A first control valve 107 is installed in both the feed pipe 103 and the discharge pipe 104. The first control valve 107 is used to regulate the flow rate of the material conveying in the feed pipe 103 and the discharge pipe 104. A second control valve 108 is installed in both the air inlet pipe 105 and the air outlet pipe 106. The second control valve 108 is used to control the amount of steam or gas conveyed in the air inlet pipe 105 and the air outlet pipe 106. Both the first control valve 107 and the second control valve 108 are pneumatic valves to regulate the flow rate of the pipelines. The specific structure of the pneumatic valve is existing technology and will not be described in detail here.

[0023] The system also includes a detection unit 3, which includes a first sensor 301. The first sensor 301 is used to detect the sterilization environment within the sterilization chamber 102. Preferably, in this embodiment, the first sensor 301 is a high-temperature resistant pressure sensor of model MPM4530 used to detect the pressure within the sterilization chamber 102. The detection unit 3 also includes a second sensor 302, which is used to detect the flow rate of the feed pipe 103 and the discharge pipe 104. Specifically, the second sensor 302 in the feed pipe 103 is located on the side of the first control valve 107 closer to the sterilization chamber 102, and the second sensor 302 in the discharge pipe 104 is located on the side of the first control valve 107 away from the sterilization chamber 102. The second sensor 302 is used to detect the flow rate of the feed pipe 103 and the discharge pipe 104 after adjustment by the first control valve 107. Preferably, in this embodiment, the second sensor 302 is an electromagnetic flow meter of model OPTIFLUX 4400 used to detect the flow rate of the feed pipe 103 and the discharge pipe 104.

[0024] It also includes a control unit, which is electrically connected to the detection unit 3, the first control valve 107, and the second control valve 108. The control unit is used to adjust the opening and closing size of the first control valve 107 and the second control valve 108 according to the detection unit 3. Specifically, the control unit adjusts the opening and closing size of the second control valve 108 according to the pressure change in the sterilization chamber 102 detected by the first sensor 301 in the detection unit 3, so that the steam pressure in the sterilization chamber 102 can be controlled within a preset range, ensuring that the steam pressure value in the sterilization chamber 102 matches the sterilization temperature required. The control unit is also used to adjust the opening and closing size of the first control valve 107 according to the detection result of the first sensor 301. Specifically, when the pressure in the sterilization chamber 102 decreases, resulting in a decrease in temperature, the first control valve 107 is adjusted to reduce the input and output flow rates of the material through the feed pipe 103 and the discharge pipe 104. When the pressure in the sterilization chamber 102 decreases, resulting in an increase in temperature, the first control valve 107 is adjusted to increase the input and output flow rates of the material through the feed pipe 103 and the discharge pipe 104. After adjusting the first control valve 107, the control unit also uses the detection result of the second sensor 302 in the detection unit 3 to determine whether the input and output speed of the material matches the current temperature of the sterilization chamber 102, so that the input and output speed of the material through the feed pipe 103 and the discharge pipe 104 can match the temperature in the sterilization chamber 102, ensuring that the material can be fully sterilized in the sterilization chamber 102 and ensuring the sterilization effect of the material. The control unit can be a microprocessor, a single-chip microcomputer, or other processing chip. In this embodiment, the control unit preferably uses an STM32F103 single-chip microcomputer as the control processing chip. The specific content of the control unit controlling the control valve according to the detection result of the detection unit 3 is prior art and will not be described in detail here.

[0025] The specific implementation process is as follows:

[0026] During the sterilization process, the material to be sterilized is conveyed into the sterilization chamber 102 of the sterilization unit 1 through the feed pipe 103. The sterilization unit 1 uses the steam generator 2 to perform high-temperature sterilization on the material in the sterilization chamber 102. After sterilization is completed in the sterilization chamber 102, the material is output through the discharge pipe 104. During the sterilization process, the control unit adjusts the first control valve 107 based on the detection results from the detection unit 3, so that the input and output speeds of the material through the feed pipe 103 and the discharge pipe 104 match the current steam pressure and sterilization temperature inside the sterilization chamber 102.

[0027] Compared to existing technologies, this solution monitors the steam pressure inside the sterilization chamber 102 in real time during the sterilization process. This allows for timely adjustment of the feeding and discharging speeds of the feed pipe 103 and the discharge pipe 104 when the steam pressure inside the sterilization chamber 102 decreases or increases. This ensures that the feeding and discharging speeds of the feed pipe 103 and the discharge pipe 104 match the actual conditions of the sterilization chamber 102, guaranteeing that the material can undergo thorough sterilization within the sterilization chamber 102. This ensures both the sterilization effect and the sterilization efficiency of the material.

[0028] Example 2

[0029] As attached Figure 2 As shown, unlike Embodiment 1, in this embodiment, the steam generator 2 includes multiple steam generators 2, which are connected to the air inlet pipe 105 through branch air inlet pipes 105. Specifically, the multiple steam generators 2 are input into the sterilization chamber 102 through a main air inlet pipe 105. A second control valve 108 is installed in the branch air inlet pipe 105 connected to each steam generator 2. The second control valve 108 is used to adjust the amount of steam delivered to the sterilization chamber 102 by each steam generator 2. During use, the control unit adjusts the second control valve 108 on the branch air inlet pipe 105 connected to each steam generator 2 according to the detection results of the detection unit 3. This adjusts the amount of steam delivered by each steam generator 2, so that when the pressure in the sterilization chamber 102 decreases, the second control valve 108 on the branch air inlet pipe 105 connected to multiple steam generators 2 can be adjusted to promptly increase the pressure in the sterilization chamber 102. This ensures that the temperature in the sterilization chamber 102 can be quickly increased to the preset range, ensuring the stability of temperature changes during the sterilization process. Furthermore, by setting multiple steam generators 2 to supply steam to the sterilization unit 1, if one or more steam generators 2 fail, the remaining steam generators 2 can continue to supply steam to the sterilization unit 1, ensuring the normal operation of the sterilization process.

[0030] It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A temperature-controllable sterilization device, characterized by: The sterilization unit is provided with a sterilization cavity for sterilizing materials, a steam generator connected to the sterilization cavity through an air inlet pipe for supplying steam to the sterilization cavity, a feed pipe and a discharge pipe provided on the sterilization cavity for feeding and discharging materials, a first control valve provided in the feed pipe and the discharge pipe for adjusting the flow rate of the feed pipe and the discharge pipe, a second control valve provided on the air inlet pipe for adjusting the steam supply amount, a detection unit for detecting the sterilization environment of the sterilization unit, and a control unit for adjusting the opening and closing of the first control valve and the second control valve according to the detection result of the detection unit.

2. A temperature controlled sterilisation apparatus as claimed in claim 1, characterised in that: The sterilization cavity is also connected to an exhaust pipe for discharging gas in the sterilization cavity, and the exhaust pipe is provided with a second control valve.

3. A temperature controlled sterilization device according to claim 1, wherein: The detection unit includes a first sensor for detecting the pressure in the sterilization cavity.

4. A temperature controlled sterilization device according to claim 1, wherein: The detection unit also includes a second sensor for detecting the flow rate of the feed pipe and the discharge pipe.

5. A temperature controlled sterilisation apparatus as claimed in claim 4, characterised in that: The second sensor on the feed pipe is located at one end of the feed pipe close to the sterilization cavity, and the second sensor on the discharge pipe is located at one end of the discharge pipe away from the sterilization cavity.

6. A temperature controlled sterilisation apparatus as claimed in claim 5, characterised in that: The control unit is also used to adjust the first control valve according to the detection result of the second sensor.

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