CN214129560U

CN214129560U - Large-capacity pressure steam sterilizer capable of being opened quickly

Info

Publication number: CN214129560U
Application number: CN202023314894.1U
Authority: CN
Inventors: 李金彪
Original assignee: Hefei Jinniao Intelligent Technology Co ltd
Current assignee: Hefei Jinniao Intelligent Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-07
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a large capacity pressure steam sterilizer that can open fast, including pressure-bearing bucket and the sterilization bucket of coaxial setting in the pressure-bearing bucket, be provided with a plurality of support columns on the bottom surface in the pressure-bearing bucket, the sterilization bucket is supported by the support column, is provided with the sterilization water in the pressure-bearing bucket of sterilization bottom of the barrel portion, and the sterilization bucket external diameter is less than pressure-bearing bucket internal diameter, is provided with cooling device between sterilization bucket outer wall and pressure-bearing bucket inner wall, and cooling device realizes that the heat exchange cools down to the sterilization bucket.

Description

Large-capacity pressure steam sterilizer capable of being opened quickly

Technical Field

The utility model belongs to the steam sterilizer field, more specifically the large capacity pressure steam sterilizer that can open fast that says so relates to.

Background

The sterilizer is a full-automatic sterilizing device which can rapidly and reliably sterilize articles by utilizing pressure saturated steam and is suitable for units of medical health, scientific research, agriculture and the like; the sterilizing agent is used for sterilizing medical instruments, dressings, glassware, solution culture medium and the like, is also suitable for being used as food steaming equipment and enterprises and public institutions in plateau areas to prepare high-quality drinking water, and can also be used as high-temperature steam source equipment.

The pressure steam sterilizer used in the market at present heats water to a steam state in a closed container, and sterilizes liquid or solid by using high-temperature pressure saturated steam. Conventional pressure steam sterilizers typically have several disadvantages:

firstly, after the sterilization is finished, the liquid needs to be cooled to a low temperature of dozens of degrees before being taken out of the pot for use, and the waiting time of a natural cooling mode is too long, so that the working efficiency is low;

after sterilization, the barrel cover needs to be opened to take the sterilization liquid, so that the waiting time is long, and the outside air can pollute the sterilization liquid;

thirdly, in the cooling process, due to the fact that the internal air pressure is reduced, external air enters the sterilization barrel, and impurities in the air can pollute the sterilization liquid or the appliances again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but large capacity pressure steam sterilizer of quick-opening through set up condenser tube in sterilization bucket outside, through cold water circulation, realizes carrying out the initiative cooling to the sterilization bucket for sterilization bucket and the interior sterilization liquid rapid cooling of sterilization liquid.

The utility model provides a but large capacity pressure steam sterilizer of quick-opening, be in including pressure-bearing bucket and coaxial setting sterilization bucket in the pressure-bearing bucket, be provided with a plurality of support columns on the bottom surface in the pressure-bearing bucket, sterilization bucket quilt the support column supports, be provided with the sterilization water in the pressure-bearing bucket of sterilization bottom of the barrel portion, sterilization bucket external diameter is less than pressure-bearing bucket internal diameter sterilization bucket outer wall with be provided with cooling device between the pressure-bearing bucket inner wall, cooling device realizes that the heat exchange cools down to the sterilization bucket.

Preferably, cooling device is including the parcel is in condenser tube on the sterilization bucket outer wall, condenser tube one end is the water inlet, and one end is the delivery port, be connected with the water pump on the water inlet, be connected with the water catch bowl on the delivery port.

Preferably, the cooling water pipe is a metal pipe and is spirally wound on the outer wall of the sterilization barrel.

Preferably, a barrel cover is arranged at the top of the pressure-bearing barrel, an air inlet is formed in the barrel cover, and an air inlet valve and an air filter are arranged on the air inlet.

Preferably, a steam heater is arranged on the inner bottom surface of the pressure-bearing barrel and is used for electrically heating the sterilizing water in the pressure-bearing barrel.

Preferably, the pressure-bearing barrel is provided with an emptying pipe, one end of the emptying pipe penetrates out of the side surface of the pressure-bearing barrel, and the other end of the emptying pipe extends to the position above the liquid level of the sterilization liquid contained in the sterilization barrel.

Preferably, the pressure-bearing barrel is further provided with a pipette, one end of the pipette is arranged outside the pressure-bearing barrel and is internally provided with a manual valve, and the other end of the pipette extends to the position of the inner bottom surface of the sterilization barrel.

The utility model discloses technical scheme's a large capacity pressure steam sterilizer that can open fast's beneficial effect is:

1. through being provided with cooling device between sterilization bucket outer wall and pressure-bearing bucket inner wall, cooling device realizes that the heat exchange cools down the sterilization bucket for sterilization bucket and the sterile solution in it can initiatively reduce fast, has overcome the slow problem of natural cooling among the prior art.

2. Through setting up the evacuation pipe, realize when steam produces, through the original air evacuation of steam in will sterilizing the bucket, avoided sterilizing original air in the bucket to leave over, prevent that the pollution sources from leaving over, prevent to form the air insulating layer between upper steam and the liquid level and influence the heat transfer effect.

3. Through setting up pipette and manual valve, realize directly absorbing the sterilization bucket interior liquid, need not open the bung of steriliser body, the effectual outside has got into the problem in sterilization bucket and the sterile liquid between the air that has the pollution sources.

Drawings

FIG. 1 is a schematic view of the external structure of a quick-opening large-capacity pressure steam sterilizer according to the present invention;

FIG. 2 is a schematic view of the internal structure of a quick-opening large-capacity pressure steam sterilizer according to the technical solution of the present invention;

fig. 3 is a schematic structural view of the stirring driving device in the technical scheme of the present invention.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.

As shown in fig. 1, it is a schematic view of the external structure of the pressure steam sterilizer according to the present invention. The pressure steam sterilizer of the technical scheme comprises a sterilizer body, wherein the sterilizer body comprises a shell 2, and the shell 2 realizes that the pressure-bearing barrel 29 and the sterilization barrel 12 are fixed into a whole. Pressure-bearing bucket 29 and sterilization bucket 12 are coaxial to be set up, and sterilization bucket 12 external diameter is less than pressure-bearing bucket 29 internal diameter, has the clearance between pressure-bearing bucket 29 and the sterilization bucket 12, and the steam of being convenient for on the one hand rises, and on the other hand is convenient for install cooling device in the clearance, realizes carrying out quick initiative cooling to the sterilization bucket after the sterilization is accomplished. The bottom of the shell 2 is provided with foot rollers, so that the sterilizer body is convenient to fix, transport, walk and the like. The barrel cover 5 and the sealing ring 33 are arranged on the pressure-bearing barrel 29, the barrel cover 5 and the sealing ring 33 realize sealing of the connection part of the pressure-bearing barrel 29, and a sealed high-pressure environment is provided for the pressure-bearing barrel 29 and the sterilization barrel 12. The label 4 is a barrel cover bolt for fixing the connecting part of the barrel cover 5 and the pressure-bearing barrel 29, the barrel cover bolt is convenient for fixing and opening the barrel cover 5, the connection is reliable, the pressure-bearing capacity is strong, and the possibility of explosion flying cover or steam leakage of the sterilizer body under a high-pressure state is reduced. A switch box 3 and a control box 6 are fixed on the outer wall of the shell 2, a motor switch, a heater switch, a stirring device switch, a manual exhaust switch and the like are arranged on the switch box 3, and an alarm indicator lamp, a water level indicator lamp and the like are integrated to realize one-key operation and alarm indication. The controller, the signal receiver, the signal transmitter and the like are arranged in the control box 6, so that the information such as temperature and pressure extracted by the temperature sensor, the pressure sensor, the water level sensor and the like is received, and through identification and judgment, automatic control over the steam heater, the exhaust valve, the air inlet valve and the like is finally realized, and automatic control and automatic sterilization are realized. When the sterilization liquid reaches the preset sterilization temperature and sterilization time, the controller can automatically finish the sterilization work, and carry out real-time detection control on the temperature and pressure in the pressure-bearing barrel 29 and the sterilization barrel 12, and the sterilization is continued by electrically heating and boosting the temperature on one side, and the other side is stirred, so that the sterilization is more thorough without dead angles.

As shown in fig. 2, it is a schematic view of the internal structure of a quick-opening large-capacity pressure steam sterilizer according to the present invention. The utility model discloses technical scheme a large capacity pressure steam sterilizer that can open fast, including the sterilizer body, the sterilizer body includes sterilization bucket 12, pressure-bearing bucket 29 and the shell 2 of splendid attire sterilization thing, and sterilization bucket 12 is arranged in pressure-bearing bucket 29 and is prevented sterilization bucket 12 from rotating and floating with the locking of activity bolt 30, and shell 2 wraps up and fixes sterilization bucket 12 and pressure-bearing bucket 29.

As shown in fig. 2, the utility model discloses be provided with agitating unit 27 in sterilization barrel 12 of technical scheme, agitating unit 27 realizes stirring sterilization barrel 12 interior liquid (sterilization liquid or the liquid by the sterilization), avoids sterilization barrel 12 ectonexine liquid uneven problem of being heated, avoids leading to inlayer liquid temperature low, avoids not reaching the problem of sterilization effect or influence sterilization effect, realizes thorough sterilization, eliminates the sterilization dead angle. Meanwhile, precipitation in the sterilizing liquid 28 is effectively avoided, on one hand, the problem of influence on the solubility of the sterilizing liquid is avoided, and on the other hand, the problem that the precipitation is attached to the bottom surface of the sterilizing barrel to cause difficulty in cleaning is avoided.

As shown in fig. 2, the outside of the bottom of the sterilization barrel 12 in the technical solution of the present invention is provided with the stirring driving device, the stirring driving device comprises a magnetic component, the magnetic line of force of the magnetic component passes through the sterilization barrel 12 to drive the stirring device 27 in the sterilization barrel 12 to stir, so as to ensure that the liquid at each part in the sterilization barrel 12 is uniformly heated, the temperature is uniform, and the sterilization is thorough. The stirring device 27 is provided with a magnetic part capable of being attracted by the magnetic component or a metal part capable of being attracted by magnetism, and under the action of magnetic lines of force, the magnetic component obtains a magnetic acting force to drive the stirring device 27 to synchronously rotate so as to realize stirring. Through the setting of magnetic component for agitating unit 27 only install in sterilization bucket 12 can, agitating unit 27's (mixing) shaft 273 need not pass sterilization bucket 12, has simplified the installation, has reduced the overall structure of steriliser, has also avoided the setting of parts such as sealing member simultaneously, and is with low costs, and the fault rate is low, has avoided causing the big, the also big scheduling problem of area of calorific loss.

As shown in fig. 2, the stirring device 27 of the present invention includes a stirring shaft 273 and a stirring blade 272 fixed on the stirring shaft 273. The stirring shaft 273 is fixedly connected with a magnetic driving member 26, and magnetic lines of force of the magnetic assembly pass through the sterilization barrel 12 to drive the magnetic driving member 26 to rotate. The agitator shaft 273 rotates in synchronism with the magnetic drive 26. The magnetism of the magnetic driving member 26 is the same as or opposite to that of the magnetic components of the stirring driving device, and the magnetic components rotate to drive the magnetic driving member 26 to rotate synchronously. The stirring shaft 273 of the stirring device 27 does not need to penetrate through the sterilization barrel 12, so that the installation is simplified, the overall structure of the sterilizer is reduced, meanwhile, the arrangement of components such as sealing parts and the like is also avoided, the cost is low, the failure rate is low, and the problems of large heat loss, large occupied area and the like are avoided.

As shown in fig. 2, the magnetic driving member 26 of the present invention includes at least two driving rods 261 fixed to the stirring shaft 273 and symmetrically disposed, and a driven magnet 262 fixed to an outer end of the driving rod 261. The driven magnet 262 is adapted to the magnetic assembly and is rotated by the magnetic assembly. The driven magnet 262 magnetically attracts or repels the magnetic elements on the stirring driving device, and the magnetic elements rotate to drive the magnetic driving member 26 to rotate synchronously. The stirring shaft 273 of the stirring device 27 does not need to penetrate through the sterilization barrel 12, so that the installation is simplified, the overall structure of the sterilizer is reduced, meanwhile, the arrangement of components such as sealing parts and the like is also avoided, the cost is low, the failure rate is low, and the problems of large heat loss, large occupied area and the like are avoided.

As shown in fig. 2, the utility model discloses be fixed with support 271 on the bottom surface in sterilization bucket 12 among the technical scheme, the (mixing) shaft 273 passes through the bearing and installs on support 271, and the (mixing) shaft 273 axis coincides with sterilization bucket 12 axis. The stirring shaft 273 is prevented from penetrating through the sterilization barrel 12 to influence the installation and sealing of the sterilization barrel 12, the operations such as opening holes on the sterilization barrel 12 are avoided, the integrity of the sterilization barrel 12 is ensured, and the sterilization is ensured under the high-pressure state of the sterilization barrel 12.

As shown in fig. 2, the pressure-bearing barrel 29 is sleeved outside the sterilization barrel 12 in the technical scheme of the utility model, and a plurality of support columns 15 are arranged on the bottom surface in the pressure-bearing barrel 29. The sterilizing barrel 12 is arranged on the supporting column 15, so that an accommodating space is formed between the bottom surface of the sterilizing barrel 12 and the bottom surface of the pressure-bearing barrel 29, and sterilizing water 17 is filled in the accommodating space. The accommodating space is also provided with a steam heater 24 and a water level sensor 16. To further ensure the stability of the sterilization bucket 12 during operation, a gasket 14 is secured to the upper ends of the support posts 15, and the sterilization bucket 12 is placed on the gasket. Meanwhile, a positioning shaft is arranged at the central part of the backing plate 14 and is matched with an upper end bearing of the magnetic part 25, so that the rotating centering stability of the magnetic part 25 is ensured. The steam heater 24 is arranged on the inner bottom surface of the pressure-bearing barrel 29, and the steam heater 24 heats the sterilizing water 28 in the pressure-bearing barrel 29 to generate steam so as to realize sterilization.

Based on the technical scheme of the upper segment, when sterilization is carried out, enough sterilization water 17 is filled in the accommodating space, the water level sensor 16 realizes the control of the water level, and the water level sensor 16 transmits a water level signal to the controller in the control box 16, so that the normal working water level is ensured. Then, the steam heater 24 is started to heat the sterilizing water 17, the temperature of the sterilizing water 17 rises to produce steam, the steam rises and fills the inner areas of the pressure-bearing barrel 29 and the sterilizing barrel 12, and finally enters the sterilizing barrel 12 to heat the sterilizing liquid 28 in the sterilizing barrel 12, so that the sterilizing liquid 28 is heated to a certain temperature to realize sterilization. And the sterilization liquid 28 is in direct contact with the sterilization barrel 12, and the heating steam has short path, small temperature loss and good heating effect in the process of running into the sterilization barrel 12.

As shown in fig. 2 and fig. 3, the magnetic assembly of the present invention includes an intermediate magnetic member 25 disposed in the accommodating space and an active magnetic member 22 disposed on the outer bottom surface of the pressure-bearing barrel 29. The driving magnetic member 22 is connected to a speed reducer 19 and a driving motor 21. The driving motor 21 drives the driving magnetic part 22 to rotate, the driving magnetic part 22 drives the intermediate magnetic part 25 to rotate through the magnetic force lines penetrating through the bottom surface of the pressure-bearing barrel 29, and the stirring device 27 synchronously rotates under the action of the magnetic force lines of the intermediate magnetic part 25. Through the arrangement of the active magnetic part 22, the intermediate magnetic part 25 does not need to penetrate through the pressure-bearing barrel 29, so that the pressure-bearing barrel 29 is convenient to mount and seal, and the problems of leakage or sealing failure and the like during high-pressure sterilization in the pressure-bearing barrel 29 and the sterilization barrel 12 are effectively avoided.

As shown in fig. 2 and fig. 3, the middle magnetic member 25 of the present invention includes a middle shaft 253 coaxially disposed with the stirring shaft 273 and installed on the inner bottom surface of the pressure-bearing barrel 29. A first mounting rod 254 and a second mounting rod 252 are fixed to both ends of the intermediate shaft 253, respectively. The first mounting rod 254 and the second mounting rod 252 are respectively fixed with a magnet 255/251, the second mounting rod 252 is adapted to the driving rod 261, and the magnetic force line of the magnet 251 on the second mounting rod 252 passes through the bottom surface of the sterilizing tub 12 to drive the driven magnet 262 to move synchronously. The drive motor 21 drives a rotating shaft 223 disposed coaxially with the intermediate shaft 253. The driving magnetic member 22 includes a third mounting rod 222 fixed to the rotating shaft 223, the third mounting rod 222 is adapted to the first mounting rod 254 and has a driving magnet 221 fixed to an outer end thereof, and magnetic lines of force of the driving magnet 221 pass through the bottom surface of the pressure-bearing barrel 29 to drive the magnet 255 of the first mounting rod 254 to move synchronously.

The utility model discloses among the technical scheme, middle magnetic part 25 and initiative magnetic part 22 also have agitating unit 27 on the setting of magnetic drive piece 26, through the magnetism principle, under direct mechanical connection and contact, drive agitating unit 27 and rotate, the erection joint is convenient and reliable, has avoided the operations such as sealed of spinning shaft class, has simplified the structure, has reduced the fault rate.

As shown in figure 2, the utility model discloses still be provided with the evacuation pipe 32 on the sterilizer body among the technical scheme, evacuation pipe 32 one end is worn out by pressure-bearing bucket 29 side, and the other end extends to the position on the liquid level of the sterilization liquid 28 of splendid attire in the sterilization bucket 12. An evacuation electromagnetic valve is arranged at the outer end of the evacuation pipe 32 and is connected with a controller to realize the operation of automatically exhausting air. After the sterilizing water 17 is heated and heated, a large amount of steam is generated, the steam rises and enters the sterilizing barrel 12, the air in the sterilizing barrel 12 is extruded downwards, the air is discharged from an opening of an emptying pipe 32 extending to the position near the liquid level in the sterilizing barrel 12, the steam is continuously generated during the heating continuous heating of the sterilizing water 17, and meanwhile, the emptying pipe 32 is closed, so that all saturated steam is in the sterilizing barrel 12, and the liquid or solid contained in the sterilizing barrel 12 is sterilized by the condition that the inner space of the sterilizing barrel 12 is completely saturated steam.

As shown in fig. 2, the utility model discloses in the technical scheme, still be provided with pipette 11 on the sterilizer body to built-in manual valve, pipette 11 one end is arranged in pressure-bearing bucket 29 outside and is opened and close by manual valve control, and the other end extends to sterilization bucket 12 inner bottom surface position, and the bottom face is equipped with the convenient sterile liquid of having inhaled as far as possible in slope. During sterilization, the valve is manually closed to prevent steam from leaking and releasing pressure, after sterilization is completed, the valve is manually turned on, liquid in the sterilization barrel 12 is sucked out through the pipette 11, the pressure-bearing barrel 29 or the sterilization barrel 12 does not need to be manually opened, and secondary pollution caused by manual contact of liquid and air entering is prevented.

As shown in fig. 2, in the technical solution of the present invention, the top of the pressure-bearing barrel 29 of the sterilizer body is provided with a barrel cover 5, the barrel cover 5 is provided with an air inlet 9, and the air inlet 9 is provided with an air inlet valve and an air filter. In the cooling device working process, the inside temperature of sterilizer body reduces, and steam pressure disappears, and the internal gas pressure of sterilizer descends, takes place to warp for avoiding the sterilizer body negative pressure to appear, because of letting in the air to the sterilizer body, for avoiding the air to lead to the fact the pollution in sterilizing the bucket 12 for the air filters through the filter, and the sterile air after the filtration gets into the sterilizer body through air inlet 9 again.

As shown in fig. 2, the utility model discloses in the technical scheme, in sterilizer body cooling process, natural cooling is comparatively slow, is less than pressure-bearing bucket 12 internal diameters because of sterilization bucket 29 external diameter, is provided with cooling device between sterilization bucket 12 outer wall and pressure-bearing bucket 29 inner wall, and cooling device realizes cooling down the sterilization bucket. The cooling device can quickly cool the inner space of the pressure-bearing barrel 23 of the sterilizer body and the inner space and gas of the sterilization barrel 12, so that the cooling speed is increased.

The utility model discloses that is looked for to the technique, cooling device are including the condenser tube 13 of parcel on sterilization bucket 12 outer walls, and condenser tube 13 one end is the water inlet, and one end is the delivery port, is connected with the water pump on the water inlet, is connected with the water catch bowl on the delivery port, and the water catch bowl realizes withdrawing the receipts reuse to the cooling water after the work. The cooling water pipe 13 is a metal pipe, has strong heat conduction capability, and is spirally wound on the outer wall of the sterilization barrel 12. When the cooling water pipe 13 has a cooling function, cold water is filled from the water inlet, and the cold water in the cooling water pipe 13 exchanges heat with heat in the pressure-bearing barrel 29, so that the temperature in the sterilization barrel and the pressure-bearing barrel is rapidly reduced.

In the technical scheme, the cooling device arranged between the pressure-bearing barrel 29 and the sterilization barrel 12 cools the inner space of the sterilizer body and the gas, so that the cooling speed is increased. In the water cooling process, filtered air needs to be supplemented into the sterilizer body through the air inlet 9, so that the balance of the air pressure inside and outside the sterilizer body is ensured.

As shown in fig. 2, in the technical solution of the present invention, the sterilizer body is further provided with a barrel cover 5 and a sealing ring 33 for sealing the pressure-bearing barrel 29, and the outer wall of the pressure-bearing barrel 29 is provided with a control box 6. The barrel cover 5 is further provided with a safety valve 8 and an air release valve 10, the safety valve 8 is a safety protection valve, and once the steam pressure in the pressure-bearing barrel exceeds the set pressure, the pressure-bearing barrel is automatically opened to release air and release pressure. The air release valve 10 is a manual valve and can be opened manually for air release when air release is needed. The pressure-bearing barrel 29 is provided with a pressure gauge interface 31, a pressure gauge is arranged in the pressure gauge interface 31 and is communicated with the inside of the pressure-bearing barrel, real-time pressure in the pressure-bearing barrel is detected, the barrel cover 5 penetrates through the temperature sensor 7, and the temperature sensor 7 detects the temperature of liquid in the sterilization barrel 12. The bottom of the pressure-bearing barrel 29 is provided with a drain pipe 18, the outer end of the drain pipe 18 is provided with a drain pipe valve, and the drain pipe valve is a manual valve, so that accumulated water at the bottom of the pot can be drained by manually opening the valve when the container needs to be cleaned. The inner side surface of the pressure-bearing barrel 29 is provided with a movable bolt 30 which is used for fixing the sterilization barrel 12 and preventing the sterilization barrel 12 from rotating, so that the inner barrel and the pressure-bearing barrel are fixed into a whole. The control box 6 is internally provided with a pressure gauge and is communicated with the inside of the pressure-bearing barrel 29 through a pressure gauge connector 31 to realize real-time pressure detection in the pressure-bearing barrel, the barrel cover 5 penetrates through the temperature sensor 7, and the control box 6 is connected with the temperature sensor 7 to realize the detection and control of the temperature of liquid in the sterilization barrel 12. The bottom of the pressure-bearing barrel 29 is provided with a drain pipe 18, the outer end of the drain pipe 18 is provided with a drain pipe valve, and the drain pipe valve is a manual valve, so that accumulated water at the bottom of the pot can be drained by manually opening the valve when the container needs to be cleaned. The inner side surface of the pressure-bearing barrel 29 is provided with a movable bolt 30 for locking the sterilization barrel 12 and preventing the sterilization barrel 12 from rotating and floating, the inner barrel and the pressure-bearing barrel are fixed into a whole, and the bolt is pulled out to take out the sterilization barrel when the sterilization barrel needs to be cleaned.

The technical solution of the present invention is to provide an improved method for manufacturing a semiconductor device, which is characterized in that the method is not limited by the above-mentioned method, and the method is not substantially improved by the method and the device, or the method and the device are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. The high-capacity pressure steam sterilizer capable of being opened quickly is characterized by comprising a pressure-bearing barrel and a sterilization barrel coaxially arranged in the pressure-bearing barrel, wherein a plurality of supporting columns are arranged on the inner bottom surface of the pressure-bearing barrel, the sterilization barrel is supported by the supporting columns, sterilization water is arranged in the pressure-bearing barrel at the bottom of the sterilization barrel, the outer diameter of the sterilization barrel is smaller than the inner diameter of the pressure-bearing barrel, a cooling device is arranged between the outer wall of the sterilization barrel and the inner wall of the pressure-bearing barrel, and the cooling device realizes heat exchange to cool the sterilization barrel.

2. A quick-opening large-capacity pressure steam sterilizer as claimed in claim 1, wherein the cooling means comprises a cooling water pipe wrapped on the outer wall of the sterilizing tub, one end of the cooling water pipe is a water inlet, the other end is a water outlet, the water inlet is connected with a water pump, and the water outlet is connected with a water collecting tank.

3. A quick-opening high-capacity pressure steam sterilizer as claimed in claim 2, wherein the cooling water pipe is a metal pipe and is spirally wound on the outer wall of the sterilizing tub.

4. A quick-opening large-capacity pressure steam sterilizer as claimed in claim 1, wherein a cover is provided at the top of the pressure-bearing barrel, an air inlet is provided on the cover, and an air inlet valve and an air filter are provided on the air inlet.

5. A quick-openable high-capacity pressure steam sterilizer as claimed in claim 1, wherein a steam heater is provided on an inner bottom surface of the pressure-bearing tub, the steam heater electrically heating the sterilizing water in the pressure-bearing tub.

6. A quick-opening large-capacity pressure steam sterilizer as claimed in claim 1, wherein the pressure-bearing barrel is provided with an evacuation pipe, one end of the evacuation pipe penetrates out from the side surface of the pressure-bearing barrel, and the other end extends to a position above the liquid level of the sterilization liquid contained in the sterilization barrel.

7. A quick-opening large-capacity pressure steam sterilizer as claimed in claim 1, wherein the pressure-bearing barrel is further provided with a pipette, one end of which is disposed outside the pressure-bearing barrel and is provided with a manual valve inside, and the other end of which extends to the position of the inner bottom surface of the sterilization barrel.