CN220229106U

CN220229106U - Steam generator for sterilizer

Info

Publication number: CN220229106U
Application number: CN202321872015.8U
Authority: CN
Inventors: 鲁立辉; 沈远业; 郑科杰
Original assignee: Ningbo Haishu Xiecheng Medical Instrument Co ltd
Current assignee: Ningbo Haishu Xiecheng Medical Instrument Co ltd
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2023-12-22
Anticipated expiration: 2033-07-17

Abstract

The utility model discloses a steam generator for a sterilizer, which comprises a heat conduction block, wherein a plurality of diversion channels are arranged in the heat conduction block at intervals from left to right, the head end of the first diversion channel forms a water inlet, the tail end of the last diversion channel forms a steam outlet, the tail ends and the head ends of every two adjacent diversion channels are communicated through diversion trenches, and all diversion channels and diversion trenches form a labyrinth type runner structure; sealing structures are arranged on the front side and the rear side of the heat conducting block and used for blocking water vapor at the diversion trench from leaking; the utility model can effectively avoid the leakage of water vapor in the heat conducting block, thereby improving the reliability and the service life of the steam generator.

Description

Steam generator for sterilizer

Technical Field

The utility model relates to the technical field of steam generators, in particular to a steam generator for a sterilizer.

Background

The steam generator is a device for heating water and vaporizing the water flowing through the steam generator into steam, and at present, chinese patent publication No.: CN105854042a discloses a steam generating dish for disinfection and sterilization equipment, which comprises a generating dish body used for communicating a water tank and a sterilization chamber of the disinfection and sterilization equipment, wherein the generating dish body is provided with a water inlet and a gas outlet, the generating dish body comprises an upper cover and a bottom plate, the bottom plate is provided with a plurality of heating grooves used for storing liquid, the first heating groove is communicated with the water inlet, the last heating groove is communicated with the gas outlet, the heating grooves are sequentially arranged, two adjacent heating grooves are communicated through a connecting groove, and the depth of the connecting groove is smaller than that of the heating groove; the lower part of the bottom plate is provided with a heating pipe; in addition, a sealing groove for placing a sealing gasket is formed in the upper surface of the bottom plate along the circumferential direction outside the heating groove; when the steam generating dish for the disinfection and sterilization equipment is used, water entering from the water inlet is sunk at the bottom of the heating tank, liquid water is heated to become steam under the heating action of the heating pipe and continuously flows from one heating tank to the other heating tank through the connecting tank, and after a sufficient number of heating tanks pass, only steam is left to enter the air outlet and enter a sterilization chamber of the disinfection and sterilization equipment to disinfect objects; however, in the above-mentioned structure, because upper cover and bottom plate are sealed through the sealed pad that is arranged in the seal groove, and because steam generator dish one end is advanced cold water when using, the other end goes out vapor, can make steam generator dish have the condition that both ends temperature is different, and the seal groove is located the heat sink outside and along circumference setting, thereby can lead to the sealing washer to exist the uneven condition of being heated, can accelerate the ageing of sealing washer over time, and then lead to the condition that the steam leakage appears between upper cover and the bottom plate easily, in addition, in the above-mentioned structure, because sealed pad is located the outside of whole heating tank, thereby need adopt the sealed pad of jumbo size, and then there is bigger steam leakage risk.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a steam generator for a sterilizer, which can effectively avoid the leakage of water vapor in a heat conduction block, thereby improving the reliability and the service life of the steam generator.

The steam generator for the sterilizer comprises a heat conduction block, wherein a plurality of diversion channels are arranged in the heat conduction block at intervals from left to right, the head end of the first diversion channel forms a water inlet, the tail end of the last diversion channel forms a steam outlet, the tail ends and the head ends of every two adjacent diversion channels are communicated through diversion trenches, and all diversion channels and diversion trenches form a labyrinth type runner structure; the front side and the rear side of the heat conduction block are provided with sealing structures which are used for blocking water vapor at the diversion trench from leaking.

By adopting the structure, the sealing structure only needs to seal part of the area of the labyrinth type flow passage structure formed by all the flow guide channels and the flow guide grooves, and the rest part of the labyrinth type flow passage structure is in a sealing state, so that the leakage risk of water vapor in the heat conducting block can be effectively reduced, namely the reliability and the service life of the steam generator can be improved.

The steam generator for the sterilizer comprises sealing structures, wherein each sealing structure comprises a blocking cap which corresponds to each diversion trench on the side, a connecting hole matched with the blocking cap is formed in the outer end part of each diversion trench, each blocking cap is hermetically fixed in the connecting hole on the corresponding position, and the blocking cap is used for blocking water vapor at the diversion trench from leaking; after the sealing structure is adopted, the plugging of the connecting holes at the corresponding positions can be reliably realized by the plugging caps at the connecting holes, namely, the water vapor at the guide grooves can be reliably blocked by the plugging caps.

The steam generator for the sterilizer comprises a plurality of connecting holes, wherein each connecting hole is welded and fixed with the corresponding connecting cap in the circumferential direction; after the structure is adopted, each blocking cap can be reliably fixed with the connecting hole at the corresponding position and reliably block the connecting hole, so that each blocking cap can reliably block water vapor at the guide groove from leaking.

The steam generator for the sterilizer of the utility model, wherein, each blocking cap is connected with the connecting hole at the corresponding position by screw thread, a sealing piece is embedded between each blocking cap and the diversion trench at the corresponding position, each sealing piece is tightly pressed on the inner bottom of the connecting hole through a blocking cap at a corresponding position, and the sealing piece is used for blocking water vapor at the diversion trench from leaking; through adopting this kind of structure, after every stifled cap and connecting hole threaded connection and compress tightly the sealing fin on the corresponding position on the interior bottom of connecting hole, the sealing fin can block reliably that the steam that is located guiding gutter department leaks, and under the effect of sealing fin, can further block that the steam that is located guiding gutter department leaks.

The steam generator for the sterilizer is characterized in that an annular boss is arranged at the edge of the inner end part of each blocking cap, and the annular boss is used for extruding the outer edge of a sealing sheet so as to enable the outer edge of the sealing sheet to be further clung to the inner bottom of a connecting hole; after the annular bosses are arranged at the edges of the inner end parts of each plugging cap, the annular bosses can squeeze the outer edges of the sealing sheets to enable the outer edges of the sealing sheets to be further clung to the inner bottoms of the connecting holes, so that the sealing sheets can further block water vapor at the guide grooves from leaking.

The steam generator for the sterilizer is characterized in that the outer end part of each plugging cap is provided with a regular hexagon counter bore, and the counter bore is used for being matched and inserted with the end part of an outer hexagonal wrench so as to facilitate the outer hexagonal wrench to screw the plugging cap into the connecting hole; after the outer end part of the plugging cap is provided with the regular hexagonal counter bore, the counter bore can be matched and inserted with the end part of the outer hexagonal wrench so that the outer hexagonal wrench can screw the plugging cap into the connecting hole, namely, convenience can be brought to the assembly of the plugging cap and the connecting hole.

The steam generator for the sterilizer is characterized in that the sealing piece is made of copper material, and the heat conducting block and the blocking cap are made of aluminum material; after the sealing piece is made of copper materials, when the sealing piece is extruded by the plugging cap, the sealing piece can be more easily deformed and more reliably attached to the inner bottom of the connecting hole, so that the sealing effect of the sealing piece on the outer end part of the diversion trench can be further improved, namely the effect of the sealing piece in blocking water vapor leakage at the diversion trench can be further improved; after the heat conducting block and the plugging cap are made of aluminum materials, the thermal expansion coefficients of the heat conducting block and the plugging cap are the same, so that the defect that connection is unreliable due to different thermal expansion coefficients of the heat conducting block and the plugging cap can be avoided, and the effect that the plugging cap and the sealing piece block water vapor at the diversion trench from leaking can be ensured.

The steam generator for the sterilizer comprises cover plates, wherein each cover plate is used for shielding a side guide groove, each cover plate is fixed with a heat conducting block, an annular groove is formed in the outer side of each guide groove, a sealing ring is embedded in each annular groove, each sealing ring is tightly attached to the corresponding annular groove and the corresponding side cover plate, and the sealing ring is used for blocking water vapor at the guide groove from leaking out through a gap between the heat conducting block and the cover plate; through adopting this kind of structure, under the effect of apron, the apron can realize sheltering from the guiding gutter, and the apron can compress tightly the sealing washer on the heat conduction piece, and the sealing washer then can block the steam that is located guiding gutter department and leak through the clearance between heat conduction piece and the apron to under the effect of apron and sealing washer, can block that the steam that is located guiding gutter department leaks.

The steam generator for the sterilizer comprises a plurality of cover plates, wherein the cover plates are fixedly connected with a heat conducting block through a plurality of bolts which are circumferentially distributed at intervals and are positioned at the edges of the cover plates; by adopting the structure, each cover plate can be reliably fixed with the heat conducting block; in addition, be provided with the bolt hole with bolt looks adaptation on the apron, be provided with the screw hole with bolt looks adaptation on the heat conduction piece.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

fig. 1 is a schematic perspective view of the present utility model when the technical scheme of the first embodiment is adopted;

FIG. 2 is a schematic cross-sectional view of the present utility model according to the first embodiment;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 4 is a partially exploded perspective view of the present utility model according to the first embodiment;

fig. 5 is a schematic perspective view of the technical solution of the second embodiment of the present utility model;

FIG. 6 is a schematic cross-sectional view of the present utility model according to the second embodiment;

fig. 7 is a partially exploded perspective view of the present utility model according to the second embodiment.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Example 1

As shown in fig. 1-4, the steam generator for the sterilizer comprises a heat conduction block 1, wherein a plurality of diversion channels 11 are arranged in the heat conduction block 1 at intervals from left to right, the head end of the first diversion channel 11 forms a water inlet 12, the tail end of the last diversion channel 11 forms a steam outlet 13, the tail ends and the head ends of every two adjacent diversion channels 11 are communicated through diversion trenches 14, and all diversion channels 11 and diversion trenches 14 form a labyrinth type flow channel structure; sealing structures are arranged on the front side and the rear side of the heat conduction block 1 and used for blocking water vapor at the position of the diversion trench 14 from leaking; in addition, at least one heating pipe is fixed at the bottom of the heat conducting block, for example, a jack is arranged at the bottom of the heat conducting block, and the heating pipe is inserted into the jack.

Each sealing structure comprises a blocking cap 2 corresponding to each diversion trench 14 on the side one by one, a connecting hole 15 matched with the blocking cap 2 is formed at the outer end part of each diversion trench 14, each blocking cap 2 is hermetically fixed in the connecting hole 15 at the corresponding position, and the blocking cap 2 is used for blocking water vapor at the diversion trench 14 from leaking; after the sealing structure is adopted, the plugging of the connecting holes at the corresponding positions can be reliably realized by the plugging caps at the connecting holes, namely, the water vapor at the guide grooves can be reliably blocked by the plugging caps.

Each blocking cap 2 is welded, fixed and sealed with the connecting hole 15 at the corresponding position in the circumferential direction; after the structure is adopted, each blocking cap can be reliably fixed with the connecting hole at the corresponding position and reliably block the connecting hole, so that each blocking cap can reliably block water vapor at the guide groove from leaking.

Each plugging cap 2 is in threaded connection with a connecting hole 15 at a corresponding position, a sealing piece 3 is embedded between each plugging cap 2 and a diversion trench 14 at the corresponding position, each sealing piece 3 is tightly pressed on the inner bottom of the connecting hole 15 through the plugging cap 2 at the corresponding position, and the sealing piece 3 is used for blocking water vapor at the diversion trench 14 from leaking; through adopting this kind of structure, after every stifled cap and connecting hole threaded connection and compress tightly the sealing fin on the corresponding position on the interior bottom of connecting hole, the sealing fin can block reliably that the steam that is located guiding gutter department leaks, and under the effect of sealing fin, can further block that the steam that is located guiding gutter department leaks.

An annular boss 21 is arranged at the edge of the inner end part of each plugging cap 2, and the annular boss 21 is used for extruding the outer edge of the sealing sheet 3 so as to enable the outer edge of the sealing sheet 3 to be further clung to the inner bottom of the connecting hole 15; after the annular bosses are arranged at the edges of the inner end parts of each plugging cap, the annular bosses can squeeze the outer edges of the sealing sheets to enable the outer edges of the sealing sheets to be further clung to the inner bottoms of the connecting holes, so that the sealing sheets can further block water vapor at the guide grooves from leaking.

The outer end part of each plugging cap 2 is provided with a counterbore 22 in a regular hexagon shape, and the counterbore 22 is used for being matched and inserted with the end part of an outer hexagonal wrench so as to facilitate the outer hexagonal wrench to screw the plugging caps 2 into the connecting holes 15; after the outer end part of the plugging cap is provided with the regular hexagonal counter bore, the counter bore can be matched and inserted with the end part of the outer hexagonal wrench so that the outer hexagonal wrench can screw the plugging cap into the connecting hole, namely, convenience can be brought to the assembly of the plugging cap and the connecting hole.

The sealing piece 3 is made of copper material, and the heat conduction block 1 and the plugging cap 2 are made of aluminum material; after the sealing piece is made of copper materials, when the sealing piece is extruded by the plugging cap, the sealing piece can be more easily deformed and more reliably attached to the inner bottom of the connecting hole, so that the sealing effect of the sealing piece on the outer end part of the diversion trench can be further improved, namely the effect of the sealing piece in blocking water vapor leakage at the diversion trench can be further improved; after the heat conducting block and the plugging cap are made of aluminum materials, the thermal expansion coefficients of the heat conducting block and the plugging cap are the same, so that the defect that connection is unreliable due to different thermal expansion coefficients of the heat conducting block and the plugging cap can be avoided, and the effect that the plugging cap and the sealing piece block water vapor at the diversion trench from leaking can be ensured.

Example two

As shown in fig. 5 to 7, in the present embodiment, a first difference from the embodiment is that: each sealing structure comprises cover plates 4, each cover plate 4 is used for shielding a guide groove 14 on the side where the cover plate 4 is located, each cover plate 4 is fixed with a heat conduction block 1, an annular groove 16 is formed in the outer side of each guide groove 14, a sealing ring 5 is embedded in each annular groove 16, each sealing ring 5 is tightly attached to the corresponding annular groove 16 and the cover plate 4 on the corresponding side, and the sealing ring 5 is used for blocking water vapor at the guide groove 14 from leaking out through a gap between the heat conduction block 1 and the cover plate 4; through adopting this kind of structure, under the effect of apron, the apron can realize sheltering from the guiding gutter, and the apron can compress tightly the sealing washer on the heat conduction piece, and the sealing washer then can block the steam that is located guiding gutter department and leak through the clearance between heat conduction piece and the apron to under the effect of apron and sealing washer, can block that the steam that is located guiding gutter department leaks.

Each cover plate 4 is fixed with the heat conducting block 1 through a plurality of bolts which are circumferentially distributed at intervals and are positioned at the edge of the cover plate 4; by adopting the structure, each cover plate can be reliably fixed with the heat conducting block; in addition, be provided with the bolt hole with bolt looks adaptation on the apron, be provided with the screw hole with bolt looks adaptation on the heat conduction piece.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. A steam generator for a sterilizer, characterized in that: the heat conduction device comprises a heat conduction block (1), wherein a plurality of flow guide channels (11) are arranged in the heat conduction block (1) at intervals from left to right, a water inlet (12) is formed at the head end of the first flow guide channel (11), a steam outlet (13) is formed at the tail end of the last flow guide channel (11), the tail ends and the head ends of every two adjacent flow guide channels (11) are communicated through flow guide grooves (14), and all the flow guide channels (11) and the flow guide grooves (14) form a labyrinth type flow channel structure; sealing structures are arranged on the front side and the rear side of the heat conducting block (1), and the sealing structures are used for blocking water vapor located at the diversion trench (14) from leaking.

2. The steam generator for a sterilizer according to claim 1, wherein each sealing structure comprises a blocking cap (2) corresponding to each diversion trench (14) on the side, a connecting hole (15) matched with the blocking cap (2) is arranged at the outer end part of each diversion trench (14), each blocking cap (2) is fixed in the connecting hole (15) on the corresponding position in a sealing way, and the blocking cap (2) is used for blocking water vapor at the diversion trench (14) from leaking.

3. A steam generator for a sterilizer as claimed in claim 2, wherein each of the caps (2) is welded and sealed circumferentially to the corresponding connection hole (15).

4. The steam generator for the sterilizer according to claim 2, wherein each of the sealing caps (2) is in threaded connection with a connecting hole (15) at a corresponding position, a sealing sheet (3) is embedded between each of the sealing caps (2) and a diversion trench (14) at a corresponding position, each of the sealing sheets (3) is tightly pressed on the inner bottom of the connecting hole (15) through the sealing cap (2) at the corresponding position, and the sealing sheet (3) is used for blocking water vapor at the diversion trench (14) from leaking.

5. A steam generator for a sterilizer as claimed in claim 4, wherein an annular boss (21) is provided at the edge of the inner end of each of the caps (2), the annular boss (21) being for pressing the outer edge of the sealing sheet (3) to bring the outer edge of the sealing sheet (3) into further close contact with the inner bottom of the connection hole (15).

6. The steam generator for a sterilizer according to claim 4, wherein each of the plugging caps (2) is provided with a regular hexagonal counter bore (22) on an outer end portion thereof, and the counter bores (22) are used for being matched and inserted with an end portion of an outer hexagonal wrench so that the outer hexagonal wrench can screw the plugging caps (2) into the connecting holes (15).

7. A steam generator for a sterilizer according to any one of claims 4 to 6, characterized in that the sealing sheet (3) is made of copper material, and the heat conducting block (1) and the blocking cap (2) are made of aluminum material.

8. The steam generator for a sterilizer according to claim 1, wherein each sealing structure comprises a cover plate (4), each cover plate (4) is used for shielding the corresponding side of the guide groove (14), each cover plate (4) is fixed with the heat conducting block (1), an annular groove (16) is formed in the outer side of each guide groove (14), a sealing ring (5) is embedded in each annular groove (16), each sealing ring (5) is tightly sealed with the corresponding annular groove (16) and the corresponding side of the cover plate (4), and the sealing ring (5) is used for blocking water vapor at the guide groove (14) from leaking out through a gap between the heat conducting block (1) and the cover plate (4).

9. A steam generator for a sterilizer as claimed in claim 8, wherein each cover plate (4) is fixed to the heat conducting block (1) by a plurality of bolts circumferentially spaced apart and located at the edges of the cover plate (4).