CN219271651U

CN219271651U - Back pressure sterilizer

Info

Publication number: CN219271651U
Application number: CN202223582375.2U
Authority: CN
Inventors: 柏泽东; 杨井超; 姚永杰; 段裕奇
Original assignee: Shandong Wankang Medical Technology Co ltd; Shandong Biobase Disinfection Equipment Co ltd
Current assignee: Shandong Wankang Medical Technology Co ltd; Shandong Biobase Disinfection Equipment Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-30
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a back pressure sterilizer, which comprises a sterilizing barrel, an upper cover assembly and a heating and refrigerating unit, wherein the upper cover assembly is detachably connected with the top of the sterilizing barrel, the heating and refrigerating unit comprises a water inlet electromagnetic valve, a circulating water pump, a heating branch and a refrigerating branch which are connected in parallel, an annular water supply pipe and a spray header, the annular water supply pipe is arranged on the top of the inner wall of the sterilizing barrel, and the spray header is arranged on the annular water supply pipe; the bottom of the sterilizing barrel is provided with a circulating water pipe which is divided into a drainage branch and a circulating branch, the drainage branch is provided with a drainage ball valve, and the circulating branch is connected with the circulating water pump. The back pressure sterilizer is used for sterilizing in the process of developing foods, and has the advantages of high heating speed, mild temperature reduction, convenience in opening and closing of the upper cover assembly and the like.

Description

Back pressure sterilizer

Technical Field

The utility model relates to the technical field of sterilizers, in particular to a back pressure sterilizer.

Background

High-pressure steam sterilization is a common sterilization means in the market. The high Wen Jiagao pressure sterilization can kill common bacteria, fungi and other microorganisms, has the effect of killing spores and spores, and is the most reliable and commonly applied physical sterilization method. The sterilizing agent is mainly used for sterilizing articles which can resist high temperature, such as culture medium, metal instruments, glass, enamel, dressing, rubber and some medicines. However, when the autoclave is used for sterilizing canned foods, plastic packages and vacuum packages, the bag is easily broken, and the loss is caused. For this reason, people developed a back pressure high temperature digester suitable for packaging, films, foods, inspection institutions, scientific research institutions, medical institutions, etc. The conventional back pressure digester is used for sterilizing by boiling, and is pressurized and rapidly cooled in the cooling stage, so that the phenomenon of package bursting is avoided.

At present, the traditional back pressure cooking pot generally adopts a high-temperature cooking mode for sterilization, and steam is used for sterilizing loads, so that when the loads are dense, the temperatures are easy to be uneven, and the sterilization is incomplete. Meanwhile, the pot cover is generally locked by a plurality of bolts or other locking mechanisms, and the cover is relatively complicated.

Disclosure of Invention

In order to solve the technical problems of nonuniform temperature, incomplete sterilization, tedious uncapping and the like caused by dense load of a sterilizer in the prior art, the utility model provides the following technical scheme:

the utility model provides a back pressure sterilizer, which comprises a sterilizing barrel, an upper cover assembly and a heating and refrigerating unit, wherein the upper cover assembly is detachably connected with the top of the sterilizing barrel, the heating and refrigerating unit comprises a water inlet electromagnetic valve, a circulating water pump, a heating branch and a refrigerating branch which are connected in parallel, an annular water supply pipe and a spray header, the annular water supply pipe is arranged at the top of the inner wall of the sterilizing barrel, and the spray header is arranged on the annular water supply pipe;

the bottom of the sterilizing barrel is provided with a circulating water pipe which is divided into a drainage branch and a circulating branch, the drainage branch is provided with a drainage ball valve, and the circulating branch is connected with the circulating water pump.

Further, the rapid evaporator and the heating electromagnetic valve are sequentially arranged on the heating branch.

Further, an internal temperature sensor is installed inside the rapid evaporator, and an external patch temperature sensor is installed outside the rapid evaporator.

Further, a cooler and a cooling electromagnetic valve are sequentially arranged on the refrigerating branch.

Further, a temperature sensor is installed at the side wall of the sterilization barrel.

Further, a first three-way joint is arranged on the side wall of the sterilization barrel, and two interfaces of the first three-way joint are respectively connected with an air inlet electromagnetic valve and an air outlet electromagnetic valve.

Further, a second three-way joint is arranged on the side wall of the sterilization barrel, and two interfaces of the second three-way joint are respectively connected with the pressure gauge and the safety valve.

Further, a sterilization basket is embedded in the sterilization barrel and is used for placing a sterilization load.

Further, the upper cover assembly comprises a door cover, a hand wheel, a door beam and a screw rod, wherein the hand wheel and the door cover are welded at two ends of the screw rod respectively, a screw hole is formed in the middle of the door beam, the screw hole is screwed with the screw rod, a supporting shaft and a supporting column are mounted on the upper portion of the outer wall of the sterilizing barrel, the supporting shaft is arranged opposite to the supporting column, a clamping groove is formed in the inner side of the supporting column, one end of the door beam is rotatably connected with the supporting shaft, and the other end of the door beam is clamped with the clamping groove.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The back pressure sterilizer provided by the utility model uses the circulating water pump, and hot water is sprayed at the top so that the sterilizing load temperature is more uniform;

(2) The back pressure sterilizer provided by the utility model uses the rapid evaporator to heat the circulating water, so that the heating speed is higher, and the use is more convenient;

(3) According to the back pressure sterilizer provided by the utility model, the cooler is used for cooling circulating water, cold water is not required to be additionally injected, and the temperature is lowered more gently;

(4) The back pressure sterilizer provided by the utility model adopts a hand wheel sliding door structure, reduces complex uncapping steps, and is more convenient to use.

Drawings

FIG. 1 is a schematic view of the structure of the back pressure sterilizer of the present utility model.

In the figure: 1-a sterilizing barrel; 2-a support shaft; 3-door beams; 4-door covers; 5-a hand wheel; 6-supporting columns; 7-sterilizing the basket; 8-sterilizing load; 9-a circulating water pipe; 10-a circulating water pump; 11-a water inlet electromagnetic valve; 12-a flash evaporator; 13-an external patch temperature sensor; 14-an internal temperature sensor; 15-heating the electromagnetic valve; 16-a spray header; 17-a temperature sensor; 18-an air inlet solenoid valve; 19-an exhaust solenoid valve; a 20-cooler; 21-cooling solenoid valve; 22-a safety valve; 23-pressure gauge; 24-drain ball valve.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

Example 1

This embodiment provides a back pressure sterilizer, as shown in fig. 1, this sterilizer includes sterilization bucket 1, upper cover subassembly and heating refrigeration unit, and upper cover subassembly is connected with the top of sterilization bucket 1 can be dismantled, and heating refrigeration unit is including the water inlet solenoid valve 11, circulating water pump 10, parallelly connected heating branch road and the branch road of refrigerating, annular delivery pipe, shower head 16 of connecting in order, and annular delivery pipe installs in the top of sterilization bucket 1 inner wall, and shower head 16 installs on annular delivery pipe. Preferably, the number of the spray heads 16 is a plurality, and the spray heads are uniformly arranged along the annular water supply pipe, so that the sterilization load 8 in the sterilization barrel 1 can be sufficiently sterilized.

The bottom of the sterilizing barrel 1 is provided with a circulating water pipe 9, the circulating water pipe 9 is divided into a drainage branch and a circulating branch, the drainage branch is provided with a drainage ball valve 24, and the circulating branch is connected with the circulating water pump.

Specifically, the heating branch is sequentially provided with a rapid evaporator 12 and a heating electromagnetic valve 15, and the rapid evaporator 12 is used for heating circulating water so as to realize sterilization of the sterilization load 8.

Specifically, the inside of the fast evaporator 12 is provided with an internal temperature sensor 14 for detecting the temperature of the heating water in the fast evaporator 12, and the outside of the fast evaporator 12 is provided with an external patch temperature sensor 13 for detecting the temperature outside the quart Su Zhengfa.

Specifically, the cooling branch is sequentially provided with a cooler 20 and a cooling electromagnetic valve 21, and the cooler 20 is used for cooling circulating water so as to cool the sterilizing load 8.

Specifically, a temperature sensor 17 is installed on the side wall of the sterilization barrel 1, and is used for detecting the temperature in the sterilization barrel 1.

Specifically, a first three-way joint is installed on the side wall of the sterilization barrel 1, and two interfaces of the first three-way joint are respectively connected with an air inlet electromagnetic valve 18 and an air outlet electromagnetic valve 19.

Specifically, a second three-way joint is installed on the side wall of the sterilization barrel 1, and two interfaces of the second three-way joint are respectively connected with a pressure gauge 23 and a safety valve 22.

Specifically, a sterilization basket 7 is embedded in the sterilization barrel 1 and is used for placing a sterilization load 8.

Specifically, upper cover subassembly includes door closure 4, hand wheel 5, door beam 3, lead screw, and hand wheel 5 and door closure 4 are welded respectively at the both ends of lead screw, and the screw is seted up at the middle part of door beam 3, and screw and lead screw spin-in, the upper portion installation back shaft 2 and the support column 6 of sterilization bucket 1 outer wall, back shaft 2 and the relative setting of support column 6, and the draw-in groove is seted up to the inboard of support column 6, and the one end and the back shaft 2 rotation of door beam 3 are connected, the other end with the draw-in groove block.

The back pressure sterilizer provided by the utility model can be used for food research and development, the door beam 3 is in an arch shape, one end of the door beam 3 is rotationally connected with the supporting shaft 2, the other end of the door beam is clamped with the supporting column 6, the screw rod drives the door cover 4 to move upwards through rotating the hand wheel 5, and the top of the sterilizing barrel 1 is opened; and then the door beam 3 is rotated, one end of the door beam 3 is moved out of the clamping groove of the supporting column 6, and then the whole upper cover assembly is opened. The door cover 4 is driven to move up and down through the design hand wheel 5, so that the door cover 4 is opened and closed, one end of the design door beam 3 is rotationally connected with the support shaft 2, the other end of the design door beam is clamped with the support column 6, and the upper cover assembly is opened and closed through the rotation door beam 3.

The sterilizing cylinder 1 is internally provided with a sterilizing basket 7, a sterilizing load 8 can food is arranged in the sterilizing basket 7, and the bottom of the sterilizing cylinder 1 is provided with a circulating water pipe 9. When the circulating pump is used, water enters the circulating pump 10 through the water inlet electromagnetic valve 11, the rapid evaporator 12 starts to work at the moment, the heating electromagnetic valve 15 is opened, the cooling electromagnetic valve 21 is closed, the water heated by the rapid evaporator 12 is uniformly sprayed to the sterilizing load 8 through the top spraying port 16, then flows to the circulating water pipe 9 from the bottom, and enters the circulating pump 10 for circulating heating. The external patch sensor 13 and the internal temperature sensor 14 of the rapid evaporator 12 monitor the temperatures of the evaporator and circulating water in real time during the heating process, and control the exhaust solenoid valve 19 to perform staged exhaust. And after reaching the specified temperature and being maintained for a period of time, entering a cooling stage. When the temperature is reduced, the heating electromagnetic valve 15 is closed, the cooling electromagnetic valve 21 is opened, the circulating water is circularly sprayed to the sterilizing load 8 through the cooler 20, and meanwhile, the air inlet electromagnetic valve 18 is controlled to perform pressure supplementing cooling on the inside of the sterilizing barrel 1. The sterilizer is provided with a safety valve 22 for ensuring the upper limit of the pressure in the cylinder, and a pressure gauge 23 displays the pressure in the cylinder in real time. After the temperature in the sterilizing cylinder is reduced to 40 ℃, the air inlet electromagnetic valve 18 is closed, and pressure supplementing is stopped. And rotating the hand wheel 5, opening the door cover 4, taking out the sterilization basket 7, taking out the sterilization load 8, opening the drainage ball valve 24, discharging the wastewater, and ending the sterilization.

Compared with the prior art, the traditional back pressure cooking pot generally adopts a high-temperature cooking mode for sterilization, and steam is used for sterilizing and disinfecting loads, so that when the loads are dense, the temperatures are easy to be uneven, and the sterilization is incomplete. Meanwhile, the pot cover is generally locked by a plurality of bolts or other locking mechanisms, and the cover is relatively complicated. The counter-pressure sterilizer of the present utility model solves this problem well. The top of the circulating water pump is adopted to spray hot water, so that the load is heated more uniformly, and the sterilization is more thorough. The circulating water is heated and cooled by the rapid evaporator and the cooler, so that the cooling process is milder, and the damage of the canned food caused by rapid cooling is reduced. Meanwhile, a hand wheel sliding door structure is adopted, so that the opening is more convenient and quicker. The utility model can be widely used for developing various canned foods.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. The counter-pressure sterilizer is characterized by comprising a sterilizing barrel, an upper cover assembly and a heating and refrigerating unit, wherein the upper cover assembly is detachably connected with the top of the sterilizing barrel, the heating and refrigerating unit comprises a water inlet electromagnetic valve, a circulating water pump, a heating branch and a refrigerating branch which are connected in parallel, an annular water supply pipe and a spray header, the annular water supply pipe is arranged on the top of the inner wall of the sterilizing barrel, and the spray header is arranged on the annular water supply pipe;

2. The counter-pressure sterilizer of claim 1, wherein the heating branch is provided with a flash evaporator and a heating solenoid valve in sequence.

3. The counter-pressure sterilizer of claim 2, wherein an interior of the flash evaporator is provided with an interior temperature sensor and an exterior of the flash evaporator is provided with an exterior patch temperature sensor.

4. The counter-pressure sterilizer of claim 1, wherein the refrigeration branch is provided with a cooler and a cooling solenoid valve in sequence.

5. The counter-pressure sterilizer of claim 1, wherein the side walls of the sterilization drum are provided with temperature sensors.

6. The counter-pressure sterilizer of claim 1, wherein a first three-way joint is installed on the side wall of the sterilization barrel, and two interfaces of the first three-way joint are respectively connected with an air inlet electromagnetic valve and an air outlet electromagnetic valve.

7. The counter-pressure sterilizer of claim 1, wherein a second three-way connector is installed on the side wall of the sterilization barrel, and two interfaces of the second three-way connector are respectively connected with a pressure gauge and a safety valve.

8. The counter-pressure sterilizer of claim 1, wherein the sterilization drum is embedded with a sterilization basket for placing a sterilization load.

9. The back pressure sterilizer of claim 1, wherein the upper cover component comprises a door cover, a hand wheel, a door beam and a screw rod, the hand wheel and the door cover are respectively welded at two ends of the screw rod, a screw hole is formed in the middle of the door beam, the screw hole is screwed with the screw rod, a supporting shaft and a supporting column are arranged at the upper part of the outer wall of the sterilizing barrel, the supporting shaft is arranged opposite to the supporting column, a clamping groove is formed in the inner side of the supporting column, one end of the door beam is rotatably connected with the supporting shaft, and the other end of the door beam is clamped with the clamping groove.