CN209967104U

CN209967104U - High-temperature steam disinfection cabinet

Info

Publication number: CN209967104U
Application number: CN201920488700.8U
Authority: CN
Inventors: 鲍继勇; 徐建云
Original assignee: Zhongshan Duomeidi Energy Saving Technology Co ltd
Current assignee: Zhongshan Duomeidi Energy Saving Technology Co ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-01-21
Anticipated expiration: 2029-04-12

Abstract

The utility model relates to the technical field of steam disinfection, and discloses a high-temperature steam disinfection cabinet, which comprises a cabinet body, wherein a disinfection chamber and a steam generator are arranged in the cabinet body, the disinfection chamber is provided with a steam inlet for steam to flow in, and the steam generator is connected with the steam inlet through a middle pipe; the outer side of the middle pipe is coated with a heater. The high-temperature steam disinfection cabinet of the utility model carries out secondary heating on the steam in the conveying process, and can effectively improve the steam temperature.

Description

High-temperature steam disinfection cabinet

Technical Field

The utility model belongs to the technical field of steam disinfection technique and specifically relates to a high temperature steam sterilizer.

Background

In the field of disinfection cabinets, the traditional disinfection modes include ultraviolet rays, ozone, far infrared rays and the like, and all the traditional disinfection modes have the inherent defects of high cost, immature technology and the like, so that the steam disinfection cabinet utilizing high-temperature steam for disinfection appears in the prior art. Generally, a steam generator is disposed in a steam sterilization cabinet, and generates steam, which is input into the sterilization cabinet through a delivery pipe, and the high temperature of the steam is used to sterilize the articles in the sterilization cabinet. Generally, the temperature of the steam is about 100 ℃, if the temperature needs to be raised, the pressure of the environment for generating the steam needs to be higher, so that a pressurizing device needs to be additionally arranged in the disinfection cabinet, the strength and the space of the cabinet body are limited, and the mode is not preferable. Therefore, the prior art does not have a measure to effectively raise the steam temperature.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-temperature steam disinfection cabinet, which carries out secondary heating on steam in the conveying process and can effectively improve the steam temperature.

The embodiment of the utility model provides a high-temperature steam disinfection cabinet, which comprises a cabinet body, wherein a disinfection chamber and a steam generator are arranged in the cabinet body, the disinfection chamber is provided with a steam inlet for steam to flow in, and the steam generator is connected with the steam inlet through a middle pipe; the outer side of the middle pipe is coated with a heater.

Preferably, the steam generator comprises a water tank and a heating device arranged in the water tank, and the top of the water tank is provided with a water tank outlet for outputting steam.

Preferably, the water tank further comprises a pressure regulating valve and a first switch valve, and the water tank outlet, the pressure regulating valve, the first switch valve and the first connecting pipe are sequentially connected.

Preferably, a water-steam separator is fixed in the water tank and is in butt joint with the outlet of the water tank.

Preferably, a water level detector is further fixed in the water tank.

Preferably, the water tank links to each other with preheating the subassembly, and preheating the subassembly and including heat exchanger, first inlet tube, second inlet tube and blast pipe, heat exchanger include each other and independent and carry out the first passageway and the second passageway of heat exchange, and the disinfection room is equipped with the waste gas mouth that is used for discharging waste gas, and waste gas mouth, first passageway and blast pipe link to each other in order, and first inlet tube, second passageway, second inlet tube and water tank link to each other in order.

Preferably, the heat exchanger comprises an inner pipe and a closed sleeve sleeved outside the inner pipe, the inner pipe forms a first channel, and a space between the sleeve and the inner pipe forms a second channel.

The middle pipe comprises a first connecting pipe, a conveying pipe and a second connecting pipe which are connected in sequence, and the heater is coated on the outer side of the conveying pipe.

Preferably, the bottom of the disinfection chamber is provided with a steam distribution pipe, the steam distribution pipe is connected with the steam inlet, and the steam distribution pipe is provided with a plurality of steam distribution holes.

Preferably, be equipped with a plurality of layers of placing along vertical layering in the disinfection room, place to be provided with on the layer and place the dish and place the layer and be equipped with the circulation passageway that runs through.

Preferably, the placing layer comprises a convex plate fixed on the inner wall of the sterilizing chamber, the placing disc is used for being hung on the convex plate, and a circulation channel is arranged on the convex plate.

Preferably, the heater is a mica heater.

Preferably, the first connecting pipe and the conveying pipe are coated with heat insulating layers.

Preferably, the heat-insulating layer is heat-insulating cotton.

Preferably, a barrier for reducing the flow rate of the delivery tube is fixed in the delivery tube.

Preferably, the barrier is a column and is arranged coaxially with the duct.

Preferably, the column is a hollow hose, an opening is arranged on the side wall of the first connecting pipe or the second connecting pipe, one end of the hollow hose is connected with the opening, and the other end of the hollow hose is closed; the opening is connected with the booster pump.

Preferably, the outside of the hollow hose is coated with a thermal barrier coating.

The utility model discloses in, add the heater on the pipeline of steam, the heater carries out the secondary heating to the steam in the transportation process, can effectively promote the temperature of steam, reinforcing disinfection effect.

The barrier is arranged in the conveying pipe, so that the heating surface can be increased, the heating effect is further enhanced, and the steam generator is convenient to adapt to a low-power steam generator. Meanwhile, the columnar object is a hollow hose, the booster pump is communicated with the hollow hose, and the pipe diameter of the hollow hose can be changed through the boosting of the booster pump, so that the heating surface of steam in unit volume is adjusted, and the function of adjusting the temperature of the steam is achieved.

Drawings

FIG. 1 is a schematic structural view of a high-temperature steam sterilizer according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a steam generator according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a preheating assembly according to an embodiment of the present invention;

FIG. 4 is an enlarged, fragmentary schematic view of the preheat assembly shown in FIG. 3;

FIG. 5 is a schematic view of a sterilization chamber according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of a sterilization chamber according to an embodiment of the present invention;

fig. 7 is a schematic structural view of a delivery pipe according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a conveying pipe according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment of the utility model provides a high temperature steam sterilizer, as shown in fig. 1, it includes the cabinet body 1, is equipped with disinfection room 10 and steam generator 2 in the cabinet body 1, and disinfection room 10 is used for putting into the article of treating the disinfection, and steam flows into in disinfection room 10 to disinfect to the article of putting into in the disinfection room 10, disinfection room 10 is relative inclosed state. The outer wall of the sterilizing chamber 10 is provided with a steam inlet for steam to flow in, the steam generator 2 is used for generating steam, the steam generator 2, the middle pipe and the steam inlet are sequentially connected, and the steam flows through the middle pipe and flows to the sterilizing chamber 10 after being generated by the steam generator 2 so as to sterilize articles in the sterilizing chamber 10. The heater 41 is coated outside the middle pipe, the heater 41 can be in a ring shape and is tightly attached to the outer side surface of the middle pipe, the middle pipe is coated, the heater 41 heats the steam in the middle pipe to enable the temperature of the steam to be increased to be above 120 degrees generally, and then the temperature of the steam flowing into the disinfection chamber 10 is higher, so that the disinfection effect can be enhanced.

In one embodiment, the middle pipe includes a first connection pipe 3, a delivery pipe 4, and a second connection pipe 5 connected in sequence, and the steam generator 2, the first connection pipe 3, the delivery pipe 4, and the second connection pipe 5 are connected in sequence, and the steam generated by the steam generator 2 flows through the first connection pipe 3, the delivery pipe 4, and the second connection pipe 5 in sequence. A steam inlet is provided at the bottom of the sterilizing compartment 10 and the second connecting pipe 5 is connected to the steam inlet, and since the steam has an upward flow characteristic, the steam inlet is provided at the bottom to allow the steam to flow through the entire sterilizing compartment 10. The outside of the delivery pipe 4 is covered with a heater 41, the heater 41 may be in a ring shape, closely attached to the outer side surface of the delivery pipe 4, and covers the entire delivery pipe 4, and the heater 41 heats the steam inside the delivery pipe 4.

In an embodiment, the steam generator 2 will be described in detail, and as shown in fig. 2, the steam generator 2 includes a water tank 21 and a heating device 22 disposed in the water tank 21, the water tank 21 is used for loading water, the heating device 22 heats the water to change the water into steam, and the heating device 22 may be a heating wire or the like. A tank outlet for steam output is provided at the top of the tank 21, and the steam formed by heating flows from the tank outlet to the first connecting pipe 4.

The steam generator 2 further comprises a pressure regulating valve 23 and a first on-off valve 31, the tank outlet, the pressure regulating valve 23, the first on-off valve 31 and the first connecting pipe 3 being connected in sequence. The pressure regulating valve 23 is used for regulating the ambient pressure of the generated water vapor, and the first switching valve 31 may be a solenoid valve, and functions as a switch to control the water vapor to flow to the first connection pipe 3 or stop flowing to the first connection pipe 3. A second switching valve 51 may be provided at a connection of the feeding pipe 4 and the second connection pipe 5, and the second switching valve 51 also functions as a switch to control the flow of the water vapor to the second connection pipe 5 or stop the flow of the water vapor to the second connection pipe 5.

Further, a water-steam separator 24 is fixed in the water tank 21, the water-steam separator 24 is in butt joint with the outlet of the water tank, and water steam passes through the water-steam separator and then is output from the outlet of the water tank. The water-steam separator 24 is used for separating water and steam, and a return port is provided at the lower end of the water-steam separator 24, condensed water drops return to the water tank 21 from the return port, and water steam smoothly flows out from the outlet of the water tank.

A water level detector can be further disposed in the water tank 21, as shown in fig. 2, a high water level detector 25 and a low water level detector 26 can be disposed, the two detectors are used for detecting water levels with different heights, the high water level detector 25, the low water level detector 26 and the heating device 22 can be connected with corresponding controllers, when the high water level detector 25 detects that the water level reaches the position where the water level reaches or the low water level detector 26 detects that the water level is lower than the position where the water level is, the controllers all control the heating device 22 to stop working, so as to prevent water from being dried or the water level is too high to generate water vapor effectively, so that the water level is kept at a proper position.

In an embodiment, a preheating assembly is added to the steam generator 2 of the above embodiment, as shown in fig. 3 and 4, the water tank 21 is connected to the preheating assembly, the preheating assembly includes a heat exchanger 7, a first water inlet pipe 71, a second water inlet pipe 72, and an exhaust pipe, the heat exchanger 7 includes a first passage and a second passage that exchange heat with each other, the first passage and the second passage are independent of each other and do not communicate with each other, and they exchange heat in the heat exchanger 7. Meanwhile, the sterilization chamber 10 is provided with a waste gas port for discharging waste gas, the waste gas port, the first passage and the exhaust pipe are connected in sequence, and waste steam which flows through the sterilization chamber 10 and is sterilized needs to be discharged and then is discharged through the waste gas port, the first passage and the exhaust pipe in sequence. The first inlet pipe 71, the second passage, the second inlet pipe 72 and the water tank 21 are sequentially connected, the first inlet pipe 71 is used for connecting a water supply source such as a tap, and water supplied from the water supply source sequentially flows through the first inlet pipe 71, the second passage, the second inlet pipe 72 and finally flows to the water tank 21 to supply water to the water tank 21. Because the discharged waste steam still has the waste heat, the water in the second channel can be heated through the heat exchanger 7, so that the water provided by the water source is preheated, the water temperature of the water flowing into the water tank 21 is improved, the heating time of the heating device 22 is shortened, and the effect of saving electric energy is achieved to a certain extent.

Fig. 4 illustrates a structure of a heat exchanger, in which the heat exchanger 7 includes an inner pipe 701 and a closed sleeve 702 sleeved outside the inner pipe 701, an inner diameter of the sleeve 702 is larger than an outer diameter of the inner pipe 701, the inner diameter and the outer diameter can be coaxially arranged, and both ends of the sleeve 702 are in a closed state, so that a space between the sleeve 702 and the inner pipe 701 is relatively closed, and the space forms a second passage. Two openings are provided on the sidewall of the sleeve 702, and the two openings are connected to the first inlet pipe 71 and the second inlet pipe 72, respectively, to supply water flowing in the second passage. The inner cavity of the inner pipe 701 forms a first passage for the waste steam to flow. The water is in contact with the outer wall of the inner pipe 701 in the second passage, and heat is conducted through the inner pipe 701, thereby heating the water in the second passage.

The end part of the exhaust pipe can be connected with an air escape valve 73, the air escape valve 73 is used for controlling the on-off of the exhaust pipe, when the air escape valve 73 is opened, the waste steam is discharged, and when the air escape valve is closed, the waste steam is not discharged. The water tank 21 is also connected to a discharge pipe 27, and the remaining waste water in the water tank 21 can be discharged through the discharge pipe 27.

In an embodiment, the internal structure of the sterilization chamber 10 will be described in detail, as shown in fig. 5 and 6, a steam distribution pipe 6 is provided at the bottom of the sterilization chamber 10, the steam distribution pipe 6 is connected to a steam inlet, so that steam delivered from the second connection pipe 5 enters the steam distribution pipe 6, a plurality of steam distribution holes 61 are provided in the steam distribution pipe 6, and water steam flows out of the steam distribution holes 61 and enters the sterilization chamber 10. The steam distribution pipe 6 may be located at the center of the bottom of the sterilizing compartment 10, and the steam distribution holes 61 may be located at both sides of the steam distribution pipe 6 and uniformly distributed on the steam distribution pipe 6, thereby allowing the steam to be uniformly distributed and to uniformly flow upward from the bottom of the sterilizing compartment 10. Of course, the steam distributing pipes 6 can be provided with a plurality of steam distributing pipes 6 which are uniformly distributed at the bottom of the sterilizing chamber 10, so that the uniformity of steam distribution can be further enhanced.

As shown in fig. 5, a plurality of placing layers 8 are arranged in the sterilizing chamber 10 along the vertical layer, a placing tray 81 is arranged on each placing layer 8, each placing layer 8 is independent, and a through circulation channel 82 is arranged on each placing layer 8, so that after steam rises from the bottom, the steam gradually moves upwards through the circulation channel 82, passes through each placing layer 8, and then the articles in the placing tray 81 are sterilized at high temperature. Adjacent two-layer interval of placing between the layer 8 can keep equal, can be convenient for on the one hand the control place the height of putting into article in the dish 81, and on the other hand can make steam evenly distributed place between the layer 8 at every layer, makes whole disinfection effect more even.

The placement layer 8 may form a fixed structure for holding or placing the placement tray 81. As shown in fig. 6, which is a cross-sectional view from a top view, the left and right inner side walls of the sterilization chamber 10 are both provided with protruding bumps 83, and a protruding plate is further disposed in the sterilization chamber, and two ends of the protruding plate are respectively fixedly connected with the two bumps 83 on the same side, so that the two protruding plates at the same height form the placement layer 8, and a circulation channel 82 for steam to circulate is naturally formed between the two bumps 83. Alternatively, in other embodiments, a protruding plate may be fixed to the inner wall of the sterilization chamber 10, and the placing tray 81 may be hung on the protruding plate, and the protruding plate is provided with a plurality of through holes to form the above-mentioned flow channel. The two ends of the placing plate 81 are provided with extending edges, and the edges of the two extending edges are respectively placed on the two opposite convex plates, so that the two extending edges are hung on the convex plates in a hanging state. The ledge forms a rail-like structure on which the placement tray 81 can move relative to one another, thereby facilitating the user's placement of the placement tray 81 on or off the ledge. The outer side wall of the disinfection chamber 10 can be coated with a heat insulation layer 80 to play a role in heat insulation, and the heat insulation layer 80 can be a foaming layer.

The heater 41 used in the above embodiment may be a mica heater, which generates heat without open fire, and the mica heater may be cylindrical, completely covers the conveying pipe 4, and forms surface heating to transfer heat to the conveying pipe 4. Of course, the heater may also be another form of heating means, for example, a heating wire which may be in the form of a spiral wound around the outside of the duct 4.

In the above embodiment, the steam generator 2 may be fixed at the top end of the cabinet interior, and the duct 4 may be fixed on the outer sidewall of the cabinet 1 to reduce the occupation of the volume of the sterilizing compartment 10. Of course, the steam generator 2 may be fixed at other positions in the cabinet 1, and the delivery pipe 4 may also be fixed inside the cabinet 1. In order to ensure the heating effect, the outer sides of the first connecting pipe 3 and the conveying pipe 4 are coated with a heat-insulating layer 40, and the heat-insulating layer 40 can be heat-insulating cotton or other heat-insulating interlayer materials, so that the heat loss is reduced, and the heating temperature is ensured.

On the basis of the above embodiment, an embodiment will be provided, and the internal structure of the conveying pipe 4 will be explained. As shown in fig. 7, a blocking object 42 for reducing the flow rate of the delivery pipe 4 is fixed in the delivery pipe 4, and the blocking object 42 extends along the length direction of the delivery pipe 4, and the length of the blocking object may be equal to the length of the delivery pipe 4. The cross sectional area of barrier 42 is less than the cross sectional area of the inner space of conveying pipe 4 for a space is reserved between barrier 42 and the inner wall of conveying pipe 4, steam can be supplied for circulation, and simultaneously, the inner space of conveying pipe 4 is also reduced, and the flow of conveying pipe 4 is reduced. The heating surface of the heater 41 is relatively unchanged, so that the heating area of the steam per unit volume is increased, the heating effect can be enhanced, and the steam temperature can be further increased. In this way, the temperature of the steam eventually delivered to the sterilization chamber 10 can be guaranteed for some low-powered steam generators when the temperature of the steam delivered is relatively low.

The barrier 42 may be made of a heat insulating material, does not absorb heat of the heater 41, and functions not to affect heating of the steam. As shown in fig. 7, the blocking object 42 is a column and is arranged coaxially with the delivery pipe 4, and the cross-sectional shape of the steam flowing channel is annular, so that the steam is heated more uniformly. The both ends of conveyer pipe 4 can be fixed with the mount, and the both ends of barrier 42 link to each other with two mounts respectively to fix barrier 42 in conveyer pipe 4, the mount can be interweaved fixedly by many dead levers along radial extension and combine to form, so do not influence steam flow.

The internal structure of the conveying pipe 4 of the above embodiment can be further improved, and the column 42 is a hollow hose, and can be a high-temperature-resistant silicone tube. An opening is arranged on the side wall of the first connecting pipe 3 or the second connecting pipe 5, one end of the hollow hose is connected with the opening, the other end of the hollow hose is sealed, and the opening is connected with the booster pump. The booster pump can make the interior pressure boost of hollow hose to enlarge the radius of hose, then further reduce conveyer pipe 4's flow, increased the heated area of unit volume's steam, reinforcing heating effect can further promote steam temperature. Therefore, the output steam temperature can be adjusted by outputting different pressures through the booster pump so as to meet different requirements. As shown in fig. 8, an opening is formed at a corner of the first connecting pipe 3, a corresponding hard mouthpiece 43 is connected to the opening, and the booster pump, the external connecting pipe, the mouthpiece 43, and the hose are connected in sequence. The lower end of the hose is fixed on the corresponding fixed frame. In order to prevent the hollow hose from absorbing heat too much, the outside of the hollow hose may be coated with a heat insulating coating to enhance heat insulation.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims

1. A high-temperature steam disinfection cabinet is characterized in that:

the steam sterilizing cabinet comprises a cabinet body, wherein a sterilizing chamber and a steam generator are arranged in the cabinet body, the sterilizing chamber is provided with a steam inlet for steam to flow in, and the steam generator is connected with the steam inlet through a middle pipe; the outer side of the middle pipe is coated with a heater.

2. A high temperature steam sterilizer as claimed in claim 1, wherein:

the steam generator comprises a water tank and a heating device arranged in the water tank, and a water tank outlet for outputting steam is formed in the top of the water tank.

3. A high temperature steam sterilizer as claimed in claim 2, wherein:

high-temperature steam sterilizer is still including preheating the subassembly, the water tank links to each other with preheating the subassembly, preheat the subassembly and include heat exchanger, first inlet tube, second inlet tube and blast pipe, heat exchanger is including independent the first passageway and the second passageway that carry out the heat exchange each other, the disinfection room is equipped with the waste gas mouth that is used for discharging waste gas, waste gas mouth, first passageway and blast pipe link to each other in order, first inlet tube, second passageway, second inlet tube and water tank link to each other in order.

4. A high temperature steam sterilizer as claimed in claim 3, wherein:

the heat exchanger comprises an inner pipe and a sleeve which is sleeved on the outer side of the inner pipe in a closed mode, the inner pipe forms the first channel, and the space between the sleeve and the inner pipe forms the second channel.

5. A high temperature steam sterilizer of any one of claims 1 to 4, wherein:

the disinfection room is equipped with a plurality of layers of placing along vertical layering, it is provided with on the layer to place and places the dish and place the circulation passageway that the layer was equipped with to run through.

6. A high temperature steam sterilizer of any one of claims 1 to 4, wherein:

7. A high temperature steam sterilizer of claim 6, wherein:

and a barrier for reducing the flow of the delivery pipe is fixed in the delivery pipe.

8. A high temperature steam sterilizer of claim 7, wherein:

the barrier is a column and is arranged coaxially with the conveying pipe.

9. A high temperature steam sterilizer as claimed in claim 8, wherein:

the column is a hollow hose, an opening is formed in the side wall of the first connecting pipe or the second connecting pipe, one end of the hollow hose is connected with the opening, and the other end of the hollow hose is closed; the opening is connected with the booster pump.

10. A high temperature steam sterilizer of any one of claims 1 to 4, wherein:

the heater is a mica heater.