Steam sterilizer with shallow V-shaped bottom box body structure

Abstract

The invention discloses a steam sterilizer with a shallow V-shaped bottom box body structure. The steam sterilizer comprises a box body, longitudinal reinforcing ribs, a transverse communicating groove, a reinforcing rib steam inlet pipe, a 90-degree arc corner communicating groove, a box body steam inlet pipe, a door frame, a reinforcing rib steam outlet pipe and a box body condensate water drainage pipe, the longitudinal reinforcing ribs are longitudinally arranged along the outer wall of the box body and are communicated with each other through the transverse communicating grooves and the 90-degree arc corner communicating grooves to form a steam flowing channel; the heat exchanger is characterized in that the box body is formed by welding an upper flat plate, a side plate and a shallow V-shaped bottom plate, the shallow V-shaped bottom plate is manufactured by butt welding a shallow V-shaped folded plate and the flat plate, and the shallow V-shaped bottom plate has an inclined angle theta and is used for guiding condensate water formed by condensing high-temperature steam to a condensate water drainage pipe of the box body; the invention aims to solve the problem that bacteria are difficult to thoroughly kill due to the fact that condensed water at the bottom of a box body cannot be completely discharged in the sterilization process of an existing sterilizer, and an efficient sterilization process is realized.

Description

Technical Field

[0001] This invention relates to the field of sterilizer technology, and more specifically to a steam sterilizer with a shallow V-shaped bottom box structure. Background Technology

[0002] The currently used sterilizer chambers feature a flat bottom design with a set of reinforcing ribs arranged at regular intervals along the length of the exterior. Because these ribs are distributed circumferentially around the chamber, the temperature distribution along the longitudinal direction of the sterilizer is uneven. The four flat panels forming the rectangular chamber structure are welded to each set of reinforcing ribs. Since the moment of inertia of the ribs is greater than that of the flat panels, localized bulging deformation occurs at the weld points. This unevenness at the bottom prevents condensate from flowing completely along the plane, causing liquid to accumulate in the depressions and affecting the sterilization effect. Summary of the Invention

[0003] Therefore, there is a need for a steam sterilizer that can effectively prevent the condensate at the bottom of the sterilizer from not being completely drained.

[0004] To achieve the above objectives, the inventor provides a steam sterilizer with a shallow V-shaped bottom box structure, comprising: a box body (1), longitudinal reinforcing ribs (2), a transverse connecting groove (3), a reinforcing rib steam inlet pipe (4), a 90° arc corner connecting groove (5), a box body steam inlet pipe (6), a door frame (7), a reinforcing rib steam outlet pipe (11), and a box body steam outlet pipe (12); characterized in that the box body (1) is welded from an upper plate (101), a side plate (102), and a shallow V-shaped bottom plate (103), wherein the upper plate (101) and the side plate (102) are both flat plate structures, and the shallow V-shaped bottom plate (103) is manufactured by butt welding a shallow V-shaped folding plate (105) to the bottom plate (104), and the shallow V-shaped bottom plate (103) has an inclination angle θ for guiding the condensate formed by the condensation of high-temperature steam to the box. The condensate drain pipe (12) is arranged longitudinally along the outer wall of the box body (1) and is interconnected by the transverse connecting groove (3) and the 90° arc corner connecting groove (5) to form a steam flow channel; the steam inlet pipe (4) of the reinforcing rib is set at the top of the transverse connecting groove (3) in the center of the upper plate of the box body (1); the steam outlet pipe (11) of the reinforcing rib is set on the longitudinal reinforcing rib (2) welded to the shallow V-shaped bottom plate (105); the steam inlet pipe (6) of the box body is set at the upper plate (101) and the two side plates (102) of the box body (1) for branching the high temperature steam; the door frame (7) is welded to the end of the box body (1); the end of the longitudinal reinforcing rib (2) is welded to the inner side of the door frame (7); the steam outlet pipe (12) of the box body is set at the lowest liquid level in the center of the shallow V-shaped bottom plate (103).

[0005] Furthermore, the inclination angle θ of the shallow V-shaped bottom plate (103) ranges from 2° to 10°; when the volume of the working chamber of the box is greater than 300L, θ is 5° to 10°; when the volume of the working chamber of the box is less than 300L, θ is 2° to 5°.

[0006] Furthermore, the shallow V-shaped bottom plate (103) and the box side plate (102) are welded by a continuous full welding process, the weld surface is machined to form a smooth transition structure, and the surface of the shallow V-shaped bottom plate is polished.

[0007] Furthermore, both the longitudinal reinforcing ribs (2) and the transverse connecting grooves (3) are made of steel plates pressed into U-shaped cross-section channel steel structures, with the spacing between adjacent longitudinal reinforcing ribs (2) being equal and the transverse connecting grooves (3) being staggered.

[0008] Furthermore, the 90° arc corner connecting groove (5) is welded to the longitudinal reinforcing rib (2) and the outer wall of the box body (1) respectively, so as to realize the steam flow between the longitudinal reinforcing rib (2) at the upper plate (101), side plate (102) and shallow V-shaped bottom plate (103); the arc size of the 90° arc corner connecting groove (5) is adapted to the arc size at the corner of the box body.

[0009] Furthermore, both the reinforcing steam inlet pipe (4) and the reinforcing steam outlet pipe (11) adopt a circular pipe structure, and the reinforcing steam inlet pipe (4) and the reinforcing steam outlet pipe (11) are connected to the steam flow channel.

[0010] Furthermore, the steam inlet pipe (6) of the box body includes a main inlet pipe (601) welded to the upper plate and a branch inlet pipe (605) welded to both side plates. The branch inlet pipe (605) is connected to the main inlet pipe (601) through a horizontal pipe (602), an arc elbow (603) and a vertical pipe (604).

[0011] Furthermore, the door frame (7) includes a door panel (8), a door panel reinforcing rib (9), and a reinforcing plate (10). The door frame (7) is fully welded to the end of the box body. The door panel (8) is connected to the door frame (7) by a clamp-type structure. The reinforcing plate (10) and the door panel reinforcing rib (9) are welded together on the outside of the door panel (8).

[0012] Furthermore, the steam outlet pipe (12) of the box body is located at the lowest liquid level position in the center of the shallow V-shaped bottom plate (103), and the steam outlet pipe (12) of the box body and the shallow V-shaped bottom plate (103) are connected by welding and sealing.

[0013] The present invention adopts the above technical solution and has the following technical effects: The steam sterilizer with a shallow V-shaped bottom box structure of the present invention adopts a shallow V-shaped bottom box structure with an inclined surface structure. Compared with the existing flat bottom sterilizer, the present invention effectively eliminates the dead zone of liquid flow that is easy to accumulate in the flat bottom structure and avoids condensation retention. At the same time, the longitudinal reinforcing rib layout increases the heating area of ​​the outer wall of the box by more than 15%, improving the overall temperature uniformity. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the steam sterilizer with a shallow V-shaped bottom box structure described in a specific embodiment.

[0015] Figure 2 This is a schematic diagram of the bottom shallow V-shaped structure box as described in a specific embodiment.

[0016] Figure 3 This is a schematic diagram of the shallow V-shaped bottom plate and the horizontal tilt angle described in the specific implementation method.

[0017] Figure 4 This is a schematic diagram showing the distribution of longitudinal reinforcing ribs and transverse connecting grooves at the flat plate in a specific embodiment.

[0018] Figure 5 This is a schematic diagram showing the distribution of the longitudinal reinforcing ribs on both sides and the transverse connecting grooves in a specific implementation method.

[0019] Figure 6 This is a schematic diagram showing the distribution of longitudinal reinforcing ribs and transverse connecting grooves on the shallow V-shaped base plate as described in a specific embodiment.

[0020] Figure 7 This is a schematic diagram of the 90° circular arc corner connecting groove described in a specific embodiment.

[0021] Figure 8 This is one of the schematic diagrams of steam flow described in the specific implementation method.

[0022] Figure 9 This is the second schematic diagram of the steam flow described in the specific implementation method.

[0023] Figure 10 The third schematic diagram of the steam flow described in the specific implementation method.

[0024] Figure 11 This is a schematic diagram of the steam inlet pipe of the housing as described in a specific embodiment.

[0025] Figure 12 This is a schematic diagram of the steam outlet pipe of the housing as described in a specific embodiment.

[0026] Explanation of reference numerals in the attached figures: 1. Box body; 2. Longitudinal reinforcing rib; 3. Transverse connecting groove; 4. Reinforcing rib steam inlet pipe; 5. 90° arc corner connecting groove; 6. Box body steam inlet pipe; 7. Door frame; 8. Door panel; 9. Door panel reinforcing rib; 10. Reinforcing plate; 11. Reinforcing rib steam outlet pipe; 12. Box body steam outlet pipe; 101. Top plate; 102. Side plate; 103. Shallow V-shaped bottom plate; 104. Bottom plate; 105. Shallow V-shaped folding plate; 601. Main inlet pipe; 602. Horizontal pipe; 603. Arc elbow; 604. Vertical pipe; 605. Diversion inlet pipe. Detailed Implementation

[0027] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0028] like Figure 1 As shown, this embodiment provides a steam sterilizer with a shallow V-shaped bottom box structure. The steam sterilizer includes: a box body 1, longitudinal reinforcing ribs 2, transverse connecting grooves 3, reinforcing rib steam inlet pipes 4, 90° arc corner connecting grooves 5, box body steam inlet pipes 6, door frame 7, reinforcing rib steam outlet pipes 11, and box body condensate drain pipes 12. The door frame 7 is welded to the end of the box body 1. The end of the longitudinal reinforcing ribs 2 is welded to the inner side of the door frame 7. The box body condensate drain pipes 12 are located at the lowest liquid level in the center of the shallow V-shaped bottom plate.

[0029] like Figure 2 As shown, the box body 1 is welded together from an upper flat plate 101, a side plate 102 and a shallow V-shaped bottom plate 103. The upper flat plate 101 and the side plate 102 are both flat plate structures. The shallow V-shaped bottom plate 103 is manufactured by welding a shallow V-shaped folding plate 105 to the bottom flat plate 104.

[0030] like Figure 3As shown, the shallow V-shaped base plate 103 has an inclination angle θ, which is used to guide the condensate formed by the condensation of high-temperature steam to the condensate drain pipe (12) of the chamber. The inclination angle θ of the shallow V-shaped base plate 103 is in the range of 2°-10°. Its cross-section is shallow V-shaped. The shallow V-shaped folding plate 105 is bent with a rounded corner, where R is the bending radius and δ is the thickness of the shallow V-shaped base plate 103. When the working chamber volume is greater than 300L, since a large amount of condensate is generated during the sterilization process, a larger inclination angle can improve the condensate drainage efficiency, and θ is suitable to be 5-10°. When the sterilizer chamber volume is less than 300L, since a small amount of condensate is generated during the sterilization process, a smaller inclination angle can meet the condensate drainage requirements, and θ is suitable to be 2-5°. At the same time, θ should not exceed 10°, otherwise stress concentration will occur at the welding part between the shallow V-shaped base plate 103 and the side wall of the chamber 1, resulting in a decrease in the overall strength of the sterilizer. The shallow V-shaped bottom plate 103, due to its inclined angle, ensures that the condensate formed during sterilization flows directionally from the bottom plate surface towards the steam outlet pipe of the chamber. The shallow V-shaped bottom plate 103 is welded to the side plate 102 of the chamber 1 using a continuous full-welding process. The weld surface is machined to create a smooth transition structure, reducing condensate residue caused by right-angle connections and minimizing stress concentration in localized areas of the sterilizer chamber. The surface of the shallow V-shaped bottom plate 103 is polished to further reduce condensate flow resistance and improve drainage efficiency.

[0031] like Figure 4 , Figure 5 , Figure 6 As shown in the figure, the longitudinal reinforcing ribs 2 and transverse connecting grooves 3 on the flat plate, side plate 1, side plate 2 and shallow V-shaped bottom plate 103 of the box body are distributed in a schematic diagram. Figure 6 To accommodate the shallow V-shaped base plate, the longitudinal reinforcing rib 2 and the transverse connecting groove 3 are designed to fit the shallow V-shaped feature of the base plate. The transverse connecting groove 3 and the longitudinal reinforcing rib 2 are connected by welding; the reinforcing rib steam inlet pipe 4 is a circular pipe structure and is located at the top center of the transverse connecting groove 3 in the middle of the upper plate; the reinforcing rib steam outlet pipe 11 is a circular pipe structure and is located on the longitudinal reinforcing rib 2 welded to the shallow V-shaped folded plate 105.

[0032] like Figure 7 As shown, the 90° arc corner connecting groove 5 is welded to the longitudinal reinforcing rib 2 and the outer wall of the box body 1 respectively, and is used to realize the steam flow between the longitudinal reinforcing rib 2 of the upper plate 101, the side plate 102 and the shallow V-shaped bottom plate 103; the arc size of the 90° arc corner connecting groove 5 is adapted to the arc size of the corner of the box body 1.

[0033] like Figure 8 , Figure 9 , Figure 10As shown, the steam flow direction diagram in the longitudinal reinforcing rib 2 and the steam inlet pipe 6 of the box body is as follows: Steam enters the transverse connecting groove 3 → enters the longitudinal reinforcing ribs 2 on both sides for diversion → enters the transverse connecting groove 3 → enters the longitudinal reinforcing ribs 2 on both sides for convergence → enters the 90° arc corner connecting groove 5 → enters the longitudinal reinforcing ribs 2 on both sides of the box body for diversion → enters the transverse connecting groove 3 → enters the longitudinal reinforcing ribs 2 on both sides of the box body for convergence → enters the transverse connecting groove 3 → enters the longitudinal reinforcing ribs 2 on both sides of the box body for diversion → enters the transverse connecting groove 3 → enters the longitudinal reinforcing ribs 2 on both sides of the box body for convergence → enters the 90° arc corner connecting groove 5 → enters the longitudinal reinforcing rib 2 at the bottom of the box body for diversion → enters the transverse connecting groove 3 → enters the longitudinal reinforcing rib 2 at the bottom of the box body for convergence → enters the steam outlet pipe of the reinforcing rib.

[0034] like Figure 11 As shown, the steam inlet pipe 6 of the chamber is located at the upper plate 101 and the two side plates 102 of the chamber 1, and is used to introduce high-temperature steam in a branch. The steam inlet pipe 6 includes a main inlet pipe 601 welded to the upper plate 101 and branch inlet pipes 605 welded to the two side plates 102. The branch inlet pipes 605 are connected to the main inlet pipe 601 through a horizontal pipe 602, a vertical pipe 604 and an arc elbow 603. Three steam inlets are set at the upper plate 101 and the two side plates 102 of the sterilizer chamber, so that steam can enter the sterilizer chamber 1 at the same time for heating and sterilization. During operation, high-temperature steam is introduced into the steam inlet pipe of the chamber 1. The steam enters the sterilizer chamber 1 in three branches from the upper plate 101 and the two side plates 102 to heat the sterilization medium, effectively improving the heating efficiency.

[0035] like Figure 12 As shown, the steam outlet pipe 12 of the housing is located at the lowest liquid level position in the center of the shallow V-shaped bottom plate 103. The steam outlet pipe 12 and the shallow V-shaped bottom plate 103 are connected by welding to ensure connection strength and airtightness. The connection end between the steam outlet pipe 12 and the shallow V-shaped baffle 105 needs to be machined, and its structural dimensions are adapted to the bending radius R of the bottom of the shallow V-shaped baffle 105 to facilitate the discharge of steam condensate.

[0036] The above descriptions are embodiments of the present invention, but the specific embodiments described herein are merely illustrative and not intended to limit the invention. Any omissions, modifications, or equivalent substitutions made within the scope of the claims of this invention without departing from the principles and spirit of the invention should be included within the scope of protection of the claims.

Claims

1. A steam sterilizer with a shallow V-shaped bottom chamber structure, comprising: The enclosure (1), longitudinal reinforcing ribs (2), transverse connecting grooves (3), reinforcing rib steam inlet pipes (4), 90° arc corner connecting grooves (5), enclosure steam inlet pipes (6), door frame (7), reinforcing rib steam outlet pipes (11) and enclosure steam outlet pipes (12) are characterized in that the enclosure (1) is welded from an upper plate (101), a side plate (102) and a shallow V-shaped bottom plate (103). The upper plate (101) and the side plate (102) are both flat plate structures. The shallow V-shaped bottom plate (103) is manufactured by butt welding a shallow V-shaped folding plate (105) to the bottom plate (104). The shallow V-shaped bottom plate (103) has an inclination angle θ, which is used to guide the condensate formed by the condensation of high-temperature steam to the enclosure condensate drain pipe (12). The longitudinal reinforcing ribs (2), transverse connecting grooves (3), reinforcing rib steam inlet pipes (4), 90° arc corner connecting grooves (5), enclosure steam inlet pipes (6), door frame (7), reinforcing rib steam outlet pipes (11) and enclosure steam outlet pipes (12) are characterized in that the enclosure (1) is welded from an upper plate (101), a side plate (102) and a shallow V-shaped bottom plate (103). The upper plate (101) and the side plate (102) are both flat plate structures. The shallow V-shaped bottom plate (103) is manufactured by butt welding a shallow V-shaped folding plate (105) to the bottom plate (104). The shallow V-shaped bottom plate (103) has an inclination angle θ, which is used to guide the condensate formed by the condensation of high-temperature steam to the enclosure condensate drain pipe (12). Ribs (2) are arranged longitudinally along the outer wall of the box (1) and are interconnected through transverse connecting grooves (3) and 90° arc corner connecting grooves (5) to form a steam flow channel; the reinforcing rib steam inlet pipe (4) is set at the top of the transverse connecting groove (3) in the center of the upper plate of the box (1); the reinforcing rib steam outlet pipe (11) is set on the longitudinal reinforcing rib (2) welded to the shallow V-shaped bottom plate (105); the box steam inlet pipe (6) is set at the upper plate (101) and the two side plates (102) of the box (1) for branching the flow of high temperature steam; the door frame (7) is welded to the end of the box (1); the end of the longitudinal reinforcing rib (2) is welded to the inner side of the door frame (7); the box steam outlet pipe (12) is set at the lowest liquid level in the center of the shallow V-shaped bottom plate (103).

2. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The inclination angle θ of the shallow V-shaped bottom plate (103) ranges from 2° to 10°; when the volume of the working chamber of the box is greater than 300L, θ is 5° to 10°; when the volume of the working chamber of the box is less than 300L, θ is 2° to 5°.

3. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The shallow V-shaped bottom plate (103) and the box side plate (102) are welded by a continuous full welding process. The weld surface is machined to form a smooth transition structure, and the surface of the shallow V-shaped bottom plate is polished.

4. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The longitudinal reinforcing ribs (2) and the transverse connecting grooves (3) are both made of steel plates pressed into U-shaped cross-section channel steel structures. The spacing between adjacent longitudinal reinforcing ribs (2) is equal, and the transverse connecting grooves (3) are staggered.

5. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The 90° arc corner connecting groove (5) is welded to the longitudinal reinforcing rib (2) and the outer wall of the box body (1) respectively, and is used to realize the steam flow between the longitudinal reinforcing rib (2) at the upper plate (101), side plate (102) and shallow V-shaped bottom plate (103); the arc size of the 90° arc corner connecting groove (5) is adapted to the arc size at the corner of the box body.

6. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The reinforced steam inlet pipe (4) and the reinforced steam outlet pipe (11) both adopt a circular pipe structure, and the reinforced steam inlet pipe (4) and the reinforced steam outlet pipe (11) are connected to the steam flow channel.

7. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The steam inlet pipe (6) of the box body includes a main inlet pipe (601) welded to the upper plate and a branch inlet pipe (605) welded to the two side plates. The branch inlet pipe (605) is connected to the main inlet pipe (601) through a horizontal pipe (602), an arc elbow (603) and a vertical pipe (604).

8. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The door frame (7) includes a door panel (8), a door panel reinforcing rib (9) and a reinforcing plate (10). The door frame (7) is fully welded to the end of the box body. The door panel (8) is connected to the door frame (7) by a clamp-type structure. The reinforcing plate (10) and the door panel reinforcing rib (9) are welded together on the outside of the door panel (8).

9. The steam sterilizer with a shallow V-shaped bottom box structure according to claim 1, characterized in that, The steam outlet pipe (12) of the box body is located at the lowest liquid level position in the center of the shallow V-shaped bottom plate (103), and the steam outlet pipe (12) of the box body and the shallow V-shaped bottom plate (103) are connected by welding and sealing.

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