A mist suppression mechanism and steam sterilizer

Abstract

The utility model provides a kind of mist inhibiting mechanism and steam sterilizer, mist inhibiting mechanism includes shell body, heat exchange mechanism and water storage component, several chambers are equipped in shell body, communication passage is equipped between the chamber, form serpentine flow channel, for steam circulation;Heat exchange mechanism includes air-blowing component and heat exchange pipeline.The utility model provides mist inhibiting mechanism, steam serpentine circulation is guided in the shell body multicavity, extend discharge path, cooperate heat exchange mechanism air cooling cooling condensation, delay steam exhaust to indoor, and carry out steam cooling and condensation, make mist in mechanism slow release and dissipate, reduce mist amount and overflow amount, and have the effect of scald prevention;The cost of air cooling cooling is low, and air circulation is formed in indoor, and the steam mist of overflow is uniformly dispersed along with air circulation, reduces local concentration, so that it accelerates dissipation.

Description

Technical Field

[0001] This utility model relates to the field of steam sterilizer technology, specifically to a mist suppression mechanism and a steam sterilizer. Background Technology

[0002] Steam sterilizers utilize the high temperature and high humidity characteristics of saturated steam under high temperature and high pressure to denature and coagulate the proteins of microorganisms on the surface of items to be sterilized, rendering them irreversible and achieving sterilization. For example, Chinese Patent 201620166562.8 describes a vertical pressure steam sterilizer, which includes a container cylinder, a sterilization cylinder, a heater, and a top cover. A steam venting pipe is located on one side of the container cylinder, and an electromagnetic pressure reducing valve is installed on the steam venting pipe. The electromagnetic pressure reducing valve is electrically connected to a sensor.

[0003] After sterilization, the high-pressure steam sterilizer will automatically release steam, which will form a large amount of mist in the room, i.e., white fog, which not only affects visibility but also dissipates slowly. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a fog suppression mechanism and a steam sterilizer to solve the technical problem that in the prior art, after the high-pressure steam sterilizer is sterilized, it will automatically release steam, and the steam will form a large amount of fog in the room, that is, white fog-like matter, which not only affects the vision, but also has a slow dissipation speed.

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

[0006] In a first aspect, this utility model provides a fog suppression mechanism, comprising:

[0007] The outer shell has several chambers inside, and the chambers are connected by a serpentine flow channel to allow steam to circulate.

[0008] A heat exchange mechanism includes a blower assembly and heat exchange piping. The blower assembly is mounted on the outer casing and has a blower end that circulates indoor air and flows through the heat exchange piping. The heat exchange piping is mounted on the outer casing and penetrates at least one of the chambers, providing an attachment surface for steam heat exchange and condensation.

[0009] The water storage assembly includes multiple water storage boxes that are connected and communicate with each of the chambers, for storing condensate.

[0010] In some embodiments, the number of chambers is three, namely a first chamber, a second chamber, and a third chamber. The air inlet is disposed in the first chamber, and the air outlet is disposed in the third chamber. The blower assembly includes a blower installed outside the outer casing. The heat exchange pipeline includes heat exchange tubes, and the air outlet of the blower is connected to the heat exchange tubes. Multiple heat exchange tubes are disposed through any one of the chambers for air cooling.

[0011] In some embodiments, the top of the outer casing is provided with an air guide shroud connected to the air outlet of the blower, and the heat exchange tube is disposed on the first chamber and the second chamber. The heat exchange tube extends upward through the outer casing and to its top, communicating with the air guide shroud to guide the flow of cold air.

[0012] In some embodiments, the second chamber is provided with a first partition and a second partition from top to bottom to form a heat exchange chamber. The heat exchange tube of the second chamber passes through the first partition and into the heat exchange chamber. A second exhaust port is provided in the lower half of the heat exchange chamber. The heat exchange pipeline also includes a spiral tube, which is installed in the heat exchange chamber and its two ends pass through the first partition and the second partition, respectively, to guide steam to flow through it.

[0013] In some embodiments, the second chamber has a second drain outlet flush with its inner bottom wall, which communicates with a corresponding water storage box.

[0014] In some embodiments, a third partition is provided on the inner side of the first chamber, the heat exchange tube of the first chamber passes through the third partition downward, and a first exhaust vent is provided on the first chamber below the third partition.

[0015] In some embodiments, the first chamber has a first drain outlet flush with the upper surface of the third partition, which communicates with the corresponding water storage box.

[0016] In some embodiments, the third chamber is provided with a plurality of heat exchange fins, and the two sides of the heat exchange fins extend through the inner side of the second chamber and the outer side of the outer shell, respectively.

[0017] In some embodiments, the third chamber has a third drain outlet flush with its inner bottom wall, which communicates with the corresponding water storage box.

[0018] Secondly, this utility model also provides a steam sterilizer, including a mist suppression mechanism as described in any one of the above.

[0019] Compared with the prior art, the fog suppression mechanism provided by this utility model guides the steam to serpentine flow in the multi-chamber shell, extends the discharge path, and cooperates with the heat exchange mechanism for air cooling and condensation, delaying the steam discharge into the room and cooling and condensing the steam, so that the fog is slowly discharged and dissipated in the mechanism, reducing the amount of fog and overflow, and also has the effect of preventing scalding; the air cooling is low cost and forms an air circulation in the room, and the overflowing steam fog is evenly dispersed with the air circulation, reducing the local concentration and accelerating its dissipation. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the fog suppression mechanism provided in this embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the airflow direction of the fog suppression mechanism provided in this embodiment of the utility model;

[0022] Figure 3 This is a partial cross-sectional view of the fog suppression mechanism provided in an embodiment of the present utility model;

[0023] Figure 4 This is a cross-section and airflow diagram of the fog suppression mechanism provided in this embodiment of the utility model;

[0024] Figure 5 This is a cross-section and a schematic diagram of the steam flow direction of the fog suppression mechanism provided in this embodiment of the utility model;

[0025] Figure 6 This is a three-dimensional schematic diagram of the steam sterilizer provided in this embodiment of the utility model;

[0026] Figure 7 This is a three-dimensional split diagram of the steam sterilizer and the mist suppression mechanism provided in this embodiment of the utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Outer shell; 11. Chamber; 111. First chamber; 111a. Third partition; 112. Second chamber; 112a. First partition; 112b. Second partition; 112c. Heat exchange chamber; 113. Third chamber; 113a. Heat exchange fins; 101. Connecting passage; 102. Air inlet; 103. Air outlet; 104. First exhaust vent; 105. Second exhaust vent; 106. First drain outlet; 107. Second drain outlet; 108. Third drain outlet;

[0029] 2. Heat exchange mechanism; 21. Blower assembly; 211. Blower; 212. Air guide shroud; 22. Heat exchange piping; 221. Heat exchange tube; 222. Spiral tube;

[0030] 3. Water storage assembly; 31. Water storage box; 311. Drain outlet; 312. Sealing plug;

[0031] 4. Steam sterilizer; 401. Exhaust pipe port. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] To address the technical problem of high-pressure steam sterilizers automatically releasing steam after sterilization, resulting in a large amount of white mist forming indoors, which not only obstructs vision but also dissipates slowly, this invention provides a mist suppression mechanism. This mechanism guides steam through a serpentine flow within the multi-chamber outer shell, extending the discharge path. Combined with air cooling and condensation via a heat exchange mechanism, this delays steam discharge into the room and cools and condenses the steam, causing the mist to be slowly discharged and dissipated within the mechanism. This reduces the amount of mist and overflow, and also prevents burns. Air cooling is cost-effective and creates air circulation within the room, allowing the overflowing steam mist to disperse evenly with the air circulation, reducing local concentration and accelerating its dissipation.

[0034] It should be noted that the mist suppression mechanism described in this utility model is used in, but not limited to, vertical high-pressure steam sterilizers. For ease of explanation, this utility model only uses the application of the mist suppression mechanism in a vertical high-pressure steam sterilizer as an example. The principle of the mist suppression mechanism applied to other types of equipment is essentially the same as that applied to a vertical high-pressure steam sterilizer, and will not be elaborated here.

[0035] Please see Figure 1 and Figure 2 , Figure 1This is a three-dimensional schematic diagram of a fog suppression mechanism in one embodiment of the present invention. The fog suppression mechanism includes an outer shell 1, a heat exchange mechanism 2, and a water storage component 3. The outer shell 1 has several chambers 11, and the chambers 11 are connected by a connecting channel 101 to form a serpentine flow channel for steam circulation. The chambers 11 are arranged sequentially from left to right, and the connecting channels 101 of the chambers 11 are arranged alternately at the bottom and top from left to right to form a sufficiently long steam discharge path, delaying the direct discharge of steam into the indoor environment. The outer shell is made of a metal material that is easy to dissipate heat, serving as a condensation attachment surface for steam to adhere and condense. The heat exchange mechanism 2 includes a blower assembly 21 and a heat exchange pipe 22 installed on the outer shell 1. It mainly uses air cooling for heat dissipation. The blower assembly 21 has a drum that circulates indoor air and circulates it through the heat exchange pipe 22. The air intake draws in indoor air, which flows through the heat exchange pipe 22 and is then discharged back into the room, creating a circulation of indoor air. When the room door is opened, this provides better air circulation, accelerates the reduction of local concentration, and allows it to dissipate more quickly. The heat exchange pipe 22 is installed on the outer shell 1 and penetrates at least one of the chambers 11, providing an attachment surface for steam heat exchange and condensation. The attachment surface can be the inner wall or the outer wall of the heat exchange pipe 22. If steam flows inside the pipe, the outer wall contacts the circulating air; if steam flows outside the pipe, the inner wall contacts the circulating air, thus achieving the effect of heat exchange and providing an attachment surface for steam condensation. The water storage assembly 3 includes multiple water storage boxes 31 that are connected and communicate with each of the chambers 11, used to store condensate. The condensed water in the chambers 11 is introduced into the water storage boxes 31 for containment.

[0036] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 5 To extend the steam discharge path, the number of chambers 11 is three, namely, a first chamber 111, a second chamber 112, and a third chamber 113 from left to right. The air inlet 102 is located in the first chamber 111, and the air outlet 103 is located in the third chamber 113. Steam enters from the first chamber 111, flows sequentially through the second chamber 112 and the third chamber 113, and finally exits from the air outlet 103. The blower assembly 21 includes a blower 211, which is installed outside the outer casing 1. The heat exchange pipeline 22 includes heat exchange tubes 221, and the air outlet of the blower 211 is connected to the heat exchange tubes 221. Multiple heat exchange tubes 221 are installed through any of the chambers 11 for air cooling. When steam enters the chamber 11, it has a certain retention effect on the steam and the generated mist. In multiple zigzag channels, the steam slows down the steam discharge speed. During the flow of each chamber 11, it comes into contact with the inner wall of the chamber 11 or the heat exchange tubes 221, which has the effect of cooling and condensation, reducing its temperature and reducing the temperature difference with the outside temperature.

[0037] Furthermore, to provide heat exchange functionality for both the first chamber 111 and the second chamber 112, a guide hood 212 connected to the air outlet of the blower 211 is provided on the top of the outer casing 1. The heat exchange pipe 221 is installed on both the first chamber 111 and the second chamber 112, extending upwards through the outer casing 1 to its top and communicating with the guide hood 212 to guide the flow of cold air. Furthermore, by placing the guide hood 212 at the top, the probability of steam contacting and condensing against the inner top wall of the chamber 11 is higher due to rising heat. As the circulating air enters the heat exchange pipe 221, it contacts the top of the outer casing 1 and undergoes air cooling before flowing into the heat exchange pipe 221, increasing the air-cooled flow area.

[0038] Furthermore, to extend the steam flow path and improve the cooling effect, the second chamber 112 is provided with a first partition 112a and a second partition 112b from top to bottom, forming a heat exchange chamber 112c. The heat exchange pipeline 22 also includes a spiral tube 222, which is installed in the heat exchange chamber 112c and its two ends pass through the first partition 112a and the second partition 112b respectively, to guide steam to flow through it. The heat exchange tube 221 of the second chamber 112 passes downward through the first partition 112a into the heat exchange chamber 112c. The connecting channel 101 is located above the heat exchange chamber 112c. The steam first contacts the outer wall of the heat exchange tube 221 and then enters the spiral tube 222, flowing downward along the spiral pipeline. The circulating air flows from the outside of the spiral tube 222 from top to bottom in the heat exchange chamber 112c to dissipate heat from the spiral tube 222. The lower half of the heat exchange chamber 112c is provided with a second exhaust vent 105. After heat exchange and heat dissipation, the circulating air is discharged from the second exhaust vent 105, while steam and condensate flow from the bottom end of the spiral tube 222 into the space of the second chamber 112 below the heat exchange chamber 112c.

[0039] Specifically, the second partition 112b is provided with a conical hopper, which is connected and communicates with the top of the spiral tube 222 to guide the condensate to flow downward.

[0040] The second chamber 112 has a second drain outlet 107 flush with its inner bottom wall, which is connected to the corresponding water storage box 31.

[0041] Understandably, the water storage box 31 is connected to each chamber 112 individually to avoid steam crossflow and affect the flow effect along the serpentine flow path.

[0042] It should be noted that the inner bottom wall can be designed with a sloping surface facing the drain outlet to avoid water stagnation.

[0043] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 5 To match the air cooling and steam condensation of the first chamber 111, a third partition 111a is provided on the inner side of the first chamber 111. The heat exchange tube 221 of the first chamber 111 extends downward through the third partition 111a. A first exhaust vent 104 is provided on the first chamber 111 below the third partition 111a. The third partition 111a separates the airflow and steamflow spaces. Air flows downward to below the third partition 111a and is discharged through the first exhaust vent 104, while steam and the condensed liquid remain above the third partition 111a. The condensed liquid flows into the water storage box 31 from the first drain vent 106.

[0044] Understandably, the main function of the first chamber 111 is to guide the steam upward so that it enters the second chamber 112 through the upper connecting channel 101, and then flows from top to bottom through the spiral tube 222 in the second chamber 112 for heat exchange and condensation.

[0045] The first chamber 111 has a first drain outlet 106 that is flush with the upper surface of the third partition 111a and is connected to the corresponding water storage box 31.

[0046] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 5 In order to dissipate heat in the third chamber 113, the third chamber 113 is provided with a plurality of heat exchange fins 113a, and the two sides of the heat exchange fins 113a extend to the inner side of the second chamber 112 and the outer side of the outer shell 1, respectively. The portion extending to the outside is cooled by contact with the air, and the portion extending to the second chamber 112 is cooled by air cooling.

[0047] The third chamber 113 has a third drain outlet 108 flush with its inner bottom wall, which is connected to the corresponding water storage box 31.

[0048] Understandably, the third drain outlet 108 and the second drain outlet 107 are adjacent to each other and are both located at the connecting channel 101 between the second chamber 112 and the third chamber 113.

[0049] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 5 In order to facilitate drainage of each water storage box 31, a drain port 311 is provided at the bottom of the water storage box 31. A sealing plug 312 is inserted into the drain port 311. Drainage can be achieved by removing the sealing plug 312.

[0050] This utility model also provides a steam sterilizer, including the mist suppression mechanism and the steam sterilizer body described in any one of the above-mentioned embodiments. Please refer to [link / reference]. Figure 6 and Figure 7 The exhaust pipe of the steam sterilizer body is inserted into the first chamber 111 of the mist suppression mechanism, and then along the spiral tube 222 in the first chamber 111, the second chamber 112, and the second chamber 112, and finally enters the third chamber 113 and is discharged from the exhaust port.

[0051] To better understand this utility model, the following is combined with... Figures 1 to 5 The technical solution of this utility model is described in detail as follows: After sterilization, the steam sterilizer discharges steam from the exhaust pipe. The steam enters the first chamber 111, contacts the heat exchange tube 221 inside the first chamber 111 for heat exchange and condensation, and simultaneously contacts the inner wall of the first chamber 111 for heat exchange and condensation. Then, it flows upwards, passes through the upper connecting channel 101, and enters the second chamber 112, contacting the heat exchange tube 221 of the second chamber 112 and the inner wall of the second chamber 112 above the first partition 112a for heat exchange and condensation. Afterward, it flows downwards along the spiral tube 222, circulating... The circulating air flows from the outside of the spiral tube 222 to dissipate heat. The steam exchanges heat and condenses inside the spiral tube 222, and finally enters the third chamber 113 from below the second partition 112b through the connecting channel 101. It flows upward and contacts the heat exchange fins 113a and the inner wall of the third chamber 113 for heat exchange and condensation, and finally is discharged to the outside. The steam discharged to the outside may produce a small amount of mist. Under the suction of the blower 211, the indoor air is guided to circulate, reducing the local steam concentration and accelerating the dissipation of the mist. When the door is open, the air circulation and temperature equalization are faster and better, and the mist dissipates faster.

[0052] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A fog suppression mechanism, characterized in that, include: The outer shell has several chambers inside, and the chambers are connected by a serpentine flow channel to allow steam to circulate. A heat exchange mechanism includes a blower assembly and heat exchange piping. The blower assembly is mounted on the outer casing and has a blower end that circulates indoor air and flows through the heat exchange piping. The heat exchange piping is mounted on the outer casing and penetrates at least one of the chambers, providing an attachment surface for steam heat exchange and condensation. The water storage assembly includes multiple water storage boxes that are connected and communicate with each of the chambers, for storing condensate.

2. The fog suppression mechanism according to claim 1, characterized in that, The number of chambers is three, namely a first chamber, a second chamber, and a third chamber. Steam enters from the first chamber and flows into the second and third chambers in sequence. The blower assembly includes a blower installed outside the outer casing. The heat exchange pipeline includes heat exchange tubes, and the air outlet of the blower is connected to the heat exchange tubes. Multiple heat exchange tubes are installed through any of the chambers for air cooling.

3. The fog suppression mechanism according to claim 2, characterized in that, The top of the outer casing is provided with an air guide shroud connected to the air outlet of the blower. The heat exchange tube is arranged on the first chamber and the second chamber. The heat exchange tube passes through the outer casing upward and extends to its top, communicating with the air guide shroud to guide the flow of cold air.

4. The fog suppression mechanism according to claim 2, characterized in that, The second chamber is provided with a first partition and a second partition from top to bottom to form a heat exchange chamber. The heat exchange tube of the second chamber passes through the first partition and into the heat exchange chamber. The lower half of the heat exchange chamber is provided with a second exhaust port. The heat exchange pipeline also includes a spiral tube, which is installed in the heat exchange chamber and its two ends pass through the first partition and the second partition respectively to guide steam to flow through it.

5. The fog suppression mechanism according to claim 4, characterized in that, The second chamber has a second drain outlet flush with its inner bottom wall, which is connected to the corresponding water storage box.

6. The fog suppression mechanism according to claim 2, characterized in that, The first chamber has a third partition on its inner side, and the heat exchange tube of the first chamber passes through the third partition downward. The first chamber has a first exhaust vent located below the third partition.

7. The fog suppression mechanism according to claim 6, characterized in that, The first chamber has a first drain outlet flush with the upper surface of the third partition, which is connected to the corresponding water storage box.

8. The fog suppression mechanism according to claim 2, characterized in that, The third chamber is provided with a number of heat exchange fins, and the two sides of the heat exchange fins extend through the inner side of the second chamber and the outer side of the outer shell, respectively.

9. The fog suppression mechanism according to claim 8, characterized in that, The third chamber has a third drain outlet flush with its inner bottom wall, which is connected to the corresponding water storage box.

10. A steam sterilizer, characterized in that, Includes the fog suppression mechanism as described in any one of claims 1-9.

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