Steam type sterilization equipment

Abstract

The utility model relates to the technical field of sterilization, and particularly discloses steam type sterilization equipment which comprises a treatment barrel, a top cover arranged at the upper end of the treatment barrel, a heater arranged on the inner bottom surface of the treatment barrel, a communicating pipe arranged at the upper part of the treatment barrel, a pressure relief pipe mounted in the middle of the upper surface of the top cover, and a condensing box arranged on the upper surface of the top cover and on the outer side of the pressure relief pipe, according to the utility model, through the condensation box and the treatment barrel, waste gas generated during pressure relief in the treatment barrel is independently condensed and temporarily stored in the condensation box, and through the cooperation of the upper valve, the lower valve and the return pipe, after the two valves are connected and disconnected in sequence, the waste gas is discharged; by means of the technical scheme, a replenishing liquid in the condensation box can flow back into the treatment barrel to complete water liquid replenishing treatment, and therefore compared with a traditional scheme, the steam sterilization effect can be good, waste gas exhausted during pressure relief can be collected and utilized, and the utilization rate of water resources is effectively increased.

Description

Technical Field

[0001] This utility model relates to the field of sterilization technology, and in particular to a steam sterilization device. Background Technology

[0002] The existing Chinese patent application number 201921630233.4 discloses an integrated steam sterilization heating device, including a heating device body. A control box is fixedly installed on one outer surface of the heating device body. A container is arranged inside the heating device body. An electric heating wire is arranged on one outer surface of the container. A coil is arranged inside the container. A liquid inlet is arranged on the outer surface of one end of the coil. A liquid outlet is arranged on the outer surface of the other end of the coil. A pressure gauge, a safety valve and a steam valve are arranged on the upper outer surface of the container. The safety valve is located on one side of the steam valve and the pressure gauge is located on the other side of the steam valve.

[0003] The aforementioned technology, while saving water resources to some extent by sealing the container, suffers from a lack of recycling components for the exhaust gas released during pressure relief. This results in direct waste of the exhaust gas, leading to water loss inside the container after repeated venting, which in turn affects steam generation. Consequently, it fails to achieve optimal water resource utilization in practical applications. Therefore, to address these technical shortcomings, we propose a steam sterilization device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a steam sterilization device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A steam sterilization device includes a treatment tank. The treatment tank has a top cover at its upper end, a heater at the bottom of the treatment tank, a connecting pipe at the upper part of the treatment tank, a pressure relief pipe installed in the middle of the upper surface of the top cover, a condensation box installed on the upper surface of the top cover and outside the pressure relief pipe, a protective cover installed at the end of the pressure relief pipe away from the top cover, and a pressure relief valve installed inside the protective cover, an air inlet pipe connected to one side of the protective cover, the lower end of the air inlet pipe extending into the condensation box, a return pipe installed at the bottom of the condensation box, the lower end of the return pipe penetrating the top cover and extending into the treatment tank, and an upper valve and a lower valve installed at intervals on the pipe body of the return pipe.

[0007] Preferably, the end of the air inlet pipe located inside the condenser is connected to an internally hollow diverter ring, and the diverter ring has several air outlet holes on its body wall.

[0008] Preferably, the outer ring surface of the condenser is provided with heat dissipation fins, and there is a gap between the inner ring surface of the condenser and the outer ring surface of the pressure relief pipe.

[0009] Preferably, the end of the reflux pipe located inside the processing tank is connected to a guide pipe, and the guide pipe is away from the connecting pipe.

[0010] Preferably, the lower end of the guide tube is connected to a flow guide ring, and the lower surface of the flow guide ring is provided with a plurality of water outlet holes.

[0011] Preferably, the top cover is equipped with a temperature sensor and a pressure sensor, and the upper surface of the top cover is connected to the condenser box via a support plate.

[0012] Preferably, the end of the connecting pipe inside the processing tank is spiral-shaped, and both ends of the connecting pipe extend to the outside of the processing tank.

[0013] The steam sterilization device proposed in this utility model has the following advantages:

[0014] In this invention, a condenser and a treatment tank are used to condense and temporarily store the exhaust gas generated during depressurization in the treatment tank. Through the coordination of the upper and lower valves and the return pipe, the replenishing liquid in the condenser is returned to the treatment tank after the two valves are opened and closed sequentially, completing the water replenishment process. During water replenishment, the treatment tank is never directly connected to the condenser, thus preventing damage to the condenser from the high pressure inside the treatment tank and avoiding excessive replenishing liquid entering the treatment tank, which could lead to substandard internal temperature. Therefore, compared to traditional solutions, this method not only provides better steam sterilization but also collects and utilizes the exhaust gas released during depressurization, effectively improving water resource utilization.

[0015] The design of the flow divider ring in this invention allows the steam inside the inlet pipe to contact the room-temperature replenishing liquid inside the condenser relatively evenly, thus facilitating condensation. The design of the heat sink allows for more convenient heat exchange between the inside of the condenser and the outside environment, thereby better maintaining the room temperature of the replenishing liquid inside the condenser. The design of the guide pipe prevents the replenishing liquid flowing out of the return pipe from directly contacting the connecting pipe, thus avoiding the room-temperature replenishing liquid affecting the sterilization of the material inside the connecting pipe. The design of the flow guide ring allows the replenishing liquid to contact the high-temperature liquid inside the treatment tank relatively evenly, thus avoiding strong localized uneven heating and cooling of the high-temperature liquid inside the treatment tank. Attached Figure Description

[0016] Figure 1 This is an isometric schematic diagram of a steam sterilization device proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a steam sterilization device proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the flow guide ring of a steam sterilization device proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the flow distribution ring of a steam sterilization device proposed in this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Processing tank; 2. Top cover; 3. Heater; 4. Connecting pipe; 5. Pressure relief pipe; 6. Condensation box; 7. Pressure relief valve; 8. Inlet pipe; 9. Return pipe; 10. Upper valve; 11. Lower valve; 12. Flow divider ring; 13. Heat sink; 14. Guide pipe; 15. Flow guide ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Reference Figure 1-4 A steam sterilization device includes a treatment tank 1, a top cover 2 at the top of the treatment tank 1, a heater 3 at the bottom of the treatment tank 1, a connecting pipe 4 at the top of the treatment tank 1, a pressure relief pipe 5 installed in the middle of the upper surface of the top cover 2, a condenser box 6 installed on the upper surface of the top cover 2 and outside the pressure relief pipe 5, a protective cover is provided at the end of the pressure relief pipe 5 away from the top cover 2, and a pressure relief valve 7 is provided inside the protective cover, an air inlet pipe 8 is connected to one side of the protective cover, the lower end of the air inlet pipe 8 extends into the interior of the condenser box 6, a return pipe 9 is installed at the bottom of the condenser box 6, the lower end of the return pipe 9 passes through the top cover 2 and extends into the interior of the treatment tank 1, and an upper valve 10 and a lower valve 11 are installed at intervals on the pipe body of the return pipe 9.

[0025] Example 2

[0026] Reference Figure 1-4 While all other parts are the same as in Example 1, the difference between this example and Example 1 is that:

[0027] The intake pipe 8 is located inside the condenser 6 and is connected to a hollow distribution ring 12. The distribution ring 12 has several air outlets on its body wall. The distribution ring 12 allows the steam inside the intake pipe 8 to come into relatively uniform contact with the room temperature replenishment liquid inside the condenser 6, thus facilitating condensation. The outer ring surface of the condenser 6 is provided with heat sinks 13. There is a gap between the inner ring surface of the condenser 6 and the outer ring surface of the pressure relief pipe 5. The heat sinks 13 allow the heat inside the condenser 6 to exchange heat with the outside more conveniently, thus allowing the replenishment liquid inside the condenser 6 to maintain a better room temperature.

[0028] The return pipe 9 is connected to a guide pipe 14 at one end inside the treatment tank 1. The guide pipe 14 is away from the connecting pipe 4. The lower end of the guide pipe 14 is connected to a guide ring 15. The lower surface of the guide ring 15 is provided with several water outlet holes. The guide pipe 14 is designed so that the replenishment liquid flowing out of the return pipe 9 does not directly contact the connecting pipe 4, thereby avoiding the room temperature replenishment liquid from affecting the sterilization of the material inside the connecting pipe 4. The guide ring 15 is designed so that the replenishment liquid can contact the high temperature liquid inside the treatment tank 1 more evenly, thereby avoiding strong local hot and cold unevenness of the high temperature liquid inside the treatment tank 1. The top cover 2 is equipped with a temperature sensor and a pressure sensor. The upper surface of the top cover 2 is connected to the condenser 6 through a support plate. The connecting pipe 4 is spiral-shaped at one end inside the treatment tank 1, and both ends of the connecting pipe 4 extend to the outside of the treatment tank 1.

[0029] Operating principle and advantages: In the process of using this utility model, a certain amount of replenishing liquid is first placed inside the condenser 6 to replenish the liquid inside the treatment tank 1, while the material waiting to be sterilized flows through the connecting pipe 4. Then, the heater 3 inside the treatment tank 1 heats the liquid at the bottom of the treatment tank 1 to generate high-temperature and high-pressure steam. Subsequently, the high-temperature and high-pressure steam exchanges heat with the material inside the connecting pipe 4 to achieve its sterilization treatment. During the above process, the excessive pressure inside the treatment tank 1 enters the air inlet pipe 8 through the pressure relief valve 7, and then enters the condenser 6 through the air inlet pipe 8. At this time, the high-heat exhaust gas discharged when the treatment tank 1 is depressurized comes into contact with the replenishing liquid inside the condenser 6 and the tank body, thereby condensing. The condensed water is temporarily stored in the condenser 6.

[0030] Further, in the above process, when the water level in the treatment tank 1 decreases due to depressurization, the personnel first open the upper valve 10. At this time, the replenishing liquid in the condenser 6 enters the return pipe 9. However, since the lower valve 11 is closed at this time, the return pipe 9 is cut off. Then, the upper valve 10 is closed. At this time, the return pipe 9, located between the upper valve 10 and the lower valve 11, contains replenishing liquid. Then, the lower valve 11 can be opened, allowing the replenishing liquid in the return pipe 9 to flow into the treatment tank 1, thereby completing the process of replenishing the water level in the treatment tank 1.

[0031] In summary, this solution, through the condenser 6 and the treatment tank 1, allows the exhaust gas generated during depressurization in the treatment tank 1 to be condensed and temporarily stored separately within the condenser 6. By coordinating the upper valve 10, the lower valve 11, and the return pipe 9, the replenishing liquid inside the condenser 6 can be returned to the treatment tank 1 after the two valves are sequentially opened and closed to complete the water replenishment treatment. Furthermore, the treatment tank 1 is never directly connected to the condenser 6 during water replenishment, thus avoiding damage to the condenser 6 caused by the high pressure inside the treatment tank 1, and preventing the temperature inside the treatment tank 1 from falling below the standard due to excessive replenishing liquid entering the treatment tank 1. Therefore, compared with traditional solutions, this solution not only has a better steam sterilization effect but also collects and utilizes the exhaust gas discharged during depressurization, effectively improving the utilization rate of water resources.

[0032] It should be further explained that the design of the diversion ring 12 allows the steam inside the inlet pipe 8 to contact the room-temperature replenishing liquid inside the condenser 6 relatively evenly, thus facilitating condensation; the design of the heat sink 13 allows the heat inside the condenser 6 to exchange heat more easily with the outside, thus allowing the replenishing liquid inside the condenser 6 to better maintain room temperature; the design of the guide pipe 14 prevents the replenishing liquid flowing out of the return pipe 9 from directly contacting the connecting pipe 4, thus avoiding the room-temperature replenishing liquid from affecting the sterilization of the material inside the connecting pipe 4; and the design of the guide ring 15 allows the replenishing liquid to contact the high-temperature liquid inside the treatment tank 1 relatively evenly, thus avoiding strong localized uneven heating and cooling of the high-temperature liquid inside the treatment tank 1.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A steam sterilization device, comprising a treatment tank (1), characterized in that, The processing tank (1) is provided with a top cover (2) at the upper end, a heater (3) is provided on the bottom surface of the processing tank (1), a connecting pipe (4) is provided on the upper part of the processing tank (1), a pressure relief pipe (5) is installed in the middle of the upper surface of the top cover (2), a condenser (6) is provided on the upper surface of the top cover (2) and outside the pressure relief pipe (5), a protective cover is provided at the end of the pressure relief pipe (5) away from the top cover (2) and a pressure relief valve (7) is provided inside the protective cover, an air inlet pipe (8) is connected to one side of the protective cover, the lower end of the air inlet pipe (8) extends into the condenser (6), a return pipe (9) is installed at the bottom of the condenser (6), the lower end of the return pipe (9) passes through the top cover (2) and extends into the processing tank (1), and an upper valve (10) and a lower valve (11) are installed at intervals on the pipe body of the return pipe (9).

2. The steam sterilization equipment according to claim 1, characterized in that, The intake pipe (8) is located inside the condenser (6) and is connected to a hollow internal flow divider ring (12). The flow divider ring (12) has several air outlet holes on its body wall.

3. The steam sterilization equipment according to claim 1, characterized in that, The outer ring surface of the condenser (6) is provided with heat sink (13), and there is a gap between the inner ring surface of the condenser (6) and the outer ring surface of the pressure relief pipe (5).

4. The steam sterilization equipment according to claim 1, characterized in that, The return pipe (9) is connected to a guide pipe (14) at one end inside the processing tank (1), and the guide pipe (14) is away from the connecting pipe (4).

5. The steam sterilization equipment according to claim 4, characterized in that, The lower end of the guide tube (14) is connected to a flow guide ring (15), and the lower surface of the flow guide ring (15) is provided with several water outlet holes.

6. The steam sterilization equipment according to claim 1, characterized in that, The top cover (2) is equipped with a temperature sensor and a pressure sensor, and the upper surface of the top cover (2) is connected to the condenser box (6) through a support plate.

7. The steam sterilization equipment according to claim 1, characterized in that, The connecting pipe (4) is spiral-shaped at one end inside the processing tank (1), and both ends of the connecting pipe (4) extend to the outside of the processing tank (1).

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