阅读说明：本技术 一种多功能杀菌锅装置 (Multifunctional sterilization pot device ) 是由 张皓程 杨洪堂 李汶洁 王瑜 张新兰 马艺心 马艺宁 刘炳杰 李香凝 张珂 张江 于 2019-08-15 设计创作，主要内容包括：本发明涉及一种多功能杀菌锅装置,包括杀菌锅和热水罐,杀菌锅连接有锅进水管、锅出水管、锅进汽管和锅排气管,热水罐连接有罐进出水管、罐进汽管和罐排气管,杀菌锅的内腔顶部设有喷淋管,锅进水管包括与喷淋管连接的第一锅进水管和直接将热水注入杀菌锅内腔中的第二锅进水管；所还包括循环管道和循环泵,进冷水管和冷水泵；循环管道连接锅出水管与锅进水管；循环管道与罐进出水管道之间连接有热水回收管；循环管道上还连接有排水管。本发明通过一套设备实现了水浴式杀菌、蒸汽式杀菌和喷淋式杀菌,一机多用,减少杀菌设备的配备量,减轻了经营者的经济负担和厂房的占用面积,提高了设备的利用率。(The invention relates to a multifunctional sterilization pot device, which comprises a sterilization pot and a hot water tank, wherein the sterilization pot is connected with a pot water inlet pipe, a pot water outlet pipe, a pot steam inlet pipe and a pot exhaust pipe; the device also comprises a circulating pipeline, a circulating pump, a cold water inlet pipe and a cold water pump; the circulating pipeline is connected with the boiler water outlet pipe and the boiler water inlet pipe; a hot water recovery pipe is connected between the circulating pipeline and the water inlet and outlet pipeline of the tank; the circulating pipeline is also connected with a drain pipe. The invention realizes water bath type sterilization, steam type sterilization and spray type sterilization through one set of equipment, has multiple functions, reduces the allocation amount of sterilization equipment, lightens the economic burden of operators and the occupied area of plants, and improves the utilization rate of the equipment.)

1. A multi-functional sterilizer device which characterized in that: the device comprises a sterilization pot and a hot water tank, wherein a pot door is arranged on one side of the sterilization pot, the sterilization pot is connected with a pot water inlet pipe, a pot water outlet pipe, a pot steam inlet pipe and a pot exhaust pipe, and a pot water inlet valve, a pot water outlet valve, a pot temperature rise valve and a pot exhaust valve are respectively arranged on the pot water inlet pipe, the pot water outlet pipe, the pot steam inlet pipe and the pot exhaust pipe; the hot water tank is connected with a tank water inlet and outlet pipe, a tank steam inlet pipe and a tank exhaust pipe, a tank water inlet and outlet valve, a tank heating valve and a tank exhaust valve are respectively installed on the tank water inlet and outlet pipe, the top of the inner cavity of the sterilization pot is provided with a spray pipe, the pot water inlet pipe comprises a first pot water inlet pipe connected with the spray pipe and a second pot water inlet pipe directly injecting hot water into the inner cavity of the sterilization pot, the first pot water inlet pipe and the second pot water inlet pipe are arranged in parallel, and the pot water inlet valve comprises a first pot water inlet valve and a second pot water inlet valve which are respectively installed on the first pot water inlet pipe and the second pot water inlet pipe;

the sterilization pot device also comprises a circulating pipeline, a circulating pump, a cold water inlet pipe and a cold water pump, wherein a cold water inlet valve is arranged on the cold water inlet pipe;

the circulating pipeline is connected with the boiler water outlet pipe and the boiler water inlet pipe, the tank water inlet and outlet pipe is connected to the circulating pipeline, and the cold water inlet pipe is connected to the circulating pipeline between the tank water inlet and outlet pipe and the circulating pump; a hot water recovery pipe is connected between the circulating pipeline and the tank water inlet and outlet pipeline, and a hot water recovery valve is mounted on the hot water recovery pipe; the circulating pipeline is also connected with a drain pipe for discharging cold water to the cold water pool, and a pot drain valve is arranged on the drain pipe;

the cold water inlet pipe, the cold water pump, the circulating pipeline and the tank water inlet and outlet pipe jointly form a tank water injection pipeline for injecting water into the hot water tank;

the tank water inlet and outlet pipe, the circulating pipeline, the circulating pump and the second boiler water inlet pipe jointly form a boiler water injection pipeline for injecting hot water into the sterilization boiler;

the water bath sterilization circulating pipeline is formed by the pot water outlet pipe, the circulating pipeline, the circulating pump and the first pot water inlet pipe;

the pot water outlet pipe, the circulating pipeline, the circulating pump, the hot water recovery pipe and the pot water inlet and outlet pipe jointly form a hot water recovery pipeline for recovering hot water to the hot water pot;

the cold water inlet pipe, the cold water pump, the circulating pipeline and the boiler water outlet pipe jointly form a water bath cooling pipeline;

the pot water outlet pipe, the circulating pipeline, the circulating pump and the water outlet pipe form a pot water outlet pipeline together;

the tank water inlet and outlet pipe, the circulating pipeline, the circulating pump and the second pot water inlet pipe jointly form a spraying pipeline for spraying and sterilizing.

The pot water inlet and outlet pipe, the circulating pipeline, the circulating pump and the second pot water inlet pipe jointly form a spraying circulating pipeline.

2. The multi-functional sterilizer apparatus of claim 1, wherein: the sterilization pot device also comprises a heat exchanger, an indirect cooling water inlet pipe is connected between the circulating pipeline and a first fluid inlet of the heat exchanger, a first fluid outlet of the heat exchanger is connected with the pot water inlet pipe, and a heat exchanger indirect cooling valve is installed on the indirect cooling water inlet pipe; a second fluid inlet of the heat exchanger is connected with a cold water inlet pipe, and a second fluid outlet of the heat exchanger is connected to a cold water pool;

the boiler water outlet pipe, the circulating pipeline, the circulating pump, the heat exchanger first fluid inlet, the heat exchanger first fluid outlet and the boiler water inlet pipe jointly form a heat exchanger first fluid circulating pipeline; and the cold water inlet pipe, the cold water pump, the heat exchanger second fluid inlet, the heat exchanger second fluid outlet and the cold water pool jointly form a heat exchanger second fluid circulation pipeline.

3. The multi-functional sterilizer apparatus of claim 1, wherein: the boiler exhaust pipe and the tank exhaust pipe are connected through a balance pipe, and a balance valve is installed on the balance pipe.

4. The multi-functional sterilizer apparatus of claim 1, wherein: the water outlet pipe of the pan is also connected with a drain pipe and a drain valve.

5. The multi-functional sterilizer apparatus of claim 1, wherein: the hot water tank is arranged above the sterilizing pot through a mounting bracket.

6. The multi-functional sterilizer apparatus of claim 1, wherein: and the sterilizing pot and the hot water tank are respectively provided with a liquid level sensor, a temperature sensor and a pressure sensor.

7. The multi-functional sterilizer apparatus of claim 1, wherein: the pot exhaust valve comprises a large pot exhaust valve and a small pot exhaust valve, the small pot exhaust valve is arranged in the middle section of the pot exhaust pipe, and the large pot exhaust valve is arranged at the tail end of the pot exhaust pipe.

Technical Field

The invention relates to the technical field of sterilization pots, in particular to a multifunctional sterilization pot device.

Background

At present, sterilization pots used in the production process are all in a single sterilization mode, for example, products packaged by flexible packages and plastic bottles are suitable for water bath type sterilization products, and the water bath type sterilization pots are used for sterilization; products such as luncheon meat, marine products, agricultural products and sauce products packaged by tinplate and suitable for steam sterilization are sterilized by a steam sterilization pot; the spray type sterilization is applicable to products packaged by glass bottles, liquid-filled nitrogen aluminum cans and box type packages, and a spray type sterilization pot is adopted for sterilization; that is, the sterilizer can only perform a sterilization function, and manufacturers need to equip sterilizers with different sterilization modes according to products with different packaging types.

The cost of the sterilization pot is high, and the sterilization pot with various sterilization modes is prepared by manufacturers, so that the production cost is increased, and the burden of operators is increased; in addition, the sterilization pot is large in size, multiple sterilization pots occupy a large amount of space of a factory building, the utilization rate of the factory building is reduced, and the sterilization pot with a single sterilization mode can only sterilize products packaged in a specific mode, so that the utilization rate of a single sterilization pot is low.

Disclosure of Invention

The invention aims to provide a multifunctional sterilization pot device which can perform various sterilization modes such as water bath, steam type, spray type and the like.

In order to solve the technical problems, the technical scheme of the invention is as follows: a multifunctional sterilization pot device comprises a sterilization pot and a hot water tank, wherein a pot door is arranged on one side of the sterilization pot, the sterilization pot is connected with a pot water inlet pipe, a pot water outlet pipe, a pot steam inlet pipe and a pot exhaust pipe, and a pot water inlet valve, a pot water outlet valve, a pot temperature rise valve and a pot exhaust valve are respectively arranged on the pot water inlet pipe, the pot water outlet pipe, the pot steam inlet pipe and the pot exhaust pipe; the hot water tank is connected with a tank water inlet and outlet pipe, a tank steam inlet pipe and a tank exhaust pipe, a tank water inlet and outlet valve, a tank heating valve and a tank exhaust valve are respectively installed on the tank water inlet and outlet pipe, the top of the inner cavity of the sterilization pot is provided with a spray pipe, the pot water inlet pipe comprises a first pot water inlet pipe connected with the spray pipe and a second pot water inlet pipe directly injecting hot water into the inner cavity of the sterilization pot, the first pot water inlet pipe and the second pot water inlet pipe are arranged in parallel, and the pot water inlet valve comprises a first pot water inlet valve and a second pot water inlet valve which are respectively installed on the first pot water inlet pipe and the second pot water inlet pipe;

the sterilization pot device also comprises a circulating pipeline, a circulating pump, a cold water inlet pipe and a cold water pump, wherein a cold water inlet valve is arranged on the cold water inlet pipe;

the circulating pipeline is connected with the boiler water outlet pipe and the boiler water inlet pipe, the tank water inlet and outlet pipe is connected to the circulating pipeline, and the cold water inlet pipe is connected to the circulating pipeline between the tank water inlet and outlet pipe and the circulating pump; a hot water recovery pipe is connected between the circulating pipeline and the tank water inlet and outlet pipeline, and a hot water recovery valve is mounted on the hot water recovery pipe; the circulating pipeline is also connected with a drain pipe for discharging cold water to the cold water pool, and a pot drain valve is arranged on the drain pipe;

the cold water inlet pipe, the cold water pump, the circulating pipeline and the tank water inlet and outlet pipe jointly form a tank water injection pipeline for injecting water into the hot water tank;

the tank water inlet and outlet pipe, the circulating pipeline, the circulating pump and the second boiler water inlet pipe jointly form a boiler water injection pipeline for injecting hot water into the sterilization boiler;

the water bath sterilization circulating pipeline is formed by the pot water outlet pipe, the circulating pipeline, the circulating pump and the first pot water inlet pipe;

the pot water outlet pipe, the circulating pipeline, the circulating pump, the hot water recovery pipe and the pot water inlet and outlet pipe jointly form a hot water recovery pipeline for recovering hot water to the hot water pot;

the cold water inlet pipe, the cold water pump, the circulating pipeline and the boiler water outlet pipe jointly form a water bath cooling pipeline;

the pot water outlet pipe, the circulating pipeline, the circulating pump and the water outlet pipe form a pot water outlet pipeline together;

the tank water inlet and outlet pipe, the circulating pipeline, the circulating pump and the second pot water inlet pipe jointly form a spraying pipeline for spraying and sterilizing.

The pot water inlet and outlet pipe, the circulating pipeline, the circulating pump and the second pot water inlet pipe jointly form a spraying circulating pipeline.

As a preferred technical scheme, the sterilization pot device further comprises a heat exchanger, an indirect cooling water inlet pipe is connected between the circulating pipeline and a first fluid inlet of the heat exchanger, a first fluid outlet of the heat exchanger is connected with the pot water inlet pipe, and a heat exchanger indirect cooling valve is mounted on the indirect cooling water inlet pipe; a second fluid inlet of the heat exchanger is connected with a cold water inlet pipe, and a second fluid outlet of the heat exchanger is connected to a cold water pool;

the boiler water outlet pipe, the circulating pipeline, the circulating pump, the heat exchanger first fluid inlet, the heat exchanger first fluid outlet and the boiler water inlet pipe jointly form a heat exchanger first fluid circulating pipeline; and the cold water inlet pipe, the cold water pump, the heat exchanger second fluid inlet, the heat exchanger second fluid outlet and the cold water pool jointly form a heat exchanger second fluid circulation pipeline.

As the preferred technical scheme, the boiler exhaust pipe and the tank exhaust pipe are connected through a balance pipe, and a balance valve is installed on the balance pipe.

As the preferred technical scheme, a drain pipe and a drain valve are also connected to the water outlet pipe of the pan.

As a preferable technical scheme, the hot water tank is arranged above the sterilizing pot through a mounting bracket.

As a preferred technical scheme, a liquid level sensor, a temperature sensor and a pressure sensor are arranged on the sterilization pot and the hot water tank.

As an optimized technical scheme, the pot exhaust valve comprises a pot large exhaust valve and a pot small exhaust valve, the pot small exhaust valve is installed at the middle section of the pot exhaust pipe, and the pot large exhaust valve is installed at the tail end of the pot exhaust pipe.

Due to the adoption of the technical scheme, the invention has the beneficial effects that: the invention realizes water bath type sterilization of flexible package and plastic bottle package products and steam type sterilization of tin plate packaged luncheon meat, marine products, agricultural products and sauce products through a set of equipment; the spray type sterilization of glass bottle packaging, liquid-filled nitrogen aluminum can packaging and box type packaging is realized, the purpose that one set of equipment has multiple sterilization functions is achieved, the sterilization of any packaged product can be completed, the multiple purposes of one machine are thoroughly realized, the allocation amount of sterilization equipment is reduced, the production cost is reduced, and the economic burden of operators is reduced; only one set of equipment is equipped, so that the occupied area of a factory building is reduced, the utilization rate of the equipment is high, and the resource allocation is more reasonable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure in the direction A of FIG. 1;

FIG. 3 is a schematic view of the structure in the direction B of FIG. 1;

FIG. 4 is a schematic view of the structure of FIG. 1 at D-D;

FIG. 5 is a cross-sectional view taken at A-A of FIG. 1;

in the figure: 100-sterilizing pot; 101-pan level sensor; 102-pot temperature sensor; 103-boiler pressure sensor; 104-pot door; 111-a first pan inlet pipe; 112-a second pan inlet pipe; 113-a first pan inlet valve; 114-a second pan inlet valve; 120-boiler water outlet pipe; 121-pot outlet valve; 130-boiler steam inlet pipe; 131-a pot heating valve; 140-boiler exhaust; 141-big exhaust valve of pot; 142-a small exhaust valve of the pot; 150-a shower; 160-a drain pipe; 161-a trap; 200-a hot water tank; 201-mounting a bracket; 202-tank level sensor; 203-tank temperature sensor; 204-tank pressure sensor; 210-tank water inlet and outlet pipes; 211-tank inlet and outlet valves; 220-tank steam inlet pipe; 221-tank heating valve; 230-tank vent line; 231-canister vent valve; 240-balance tube; 241-a balance valve; 300-a circulation pipe; 301-a circulation pump; 400-cold water inlet pipe; 401-cold water pump; 402-cold water inlet valve; 500-hot water recovery pipe; 501-hot water recovery valve; 600-a drain pipe; 601-pot drain valve; 700-a heat exchanger; 701-a first fluid inlet; 702-a first fluid outlet; 703-a second fluid inlet; 704-a second fluid outlet; 710-indirectly cooling down into a cold water pipe; 711-heat exchanger indirect cooling valve.

Detailed Description

As shown in fig. 1 to 5, a multifunctional sterilizer apparatus includes a sterilizer 100 and a hot water tank 200, wherein the hot water tank 200 is mounted above the sterilizer 100 by a mounting bracket 201.

All install level sensor, temperature sensor and pressure sensor on pot 100 and the hot-water cylinder 200 disinfect, specifically include: a pot liquid level sensor 101, a pot temperature sensor 102 and a pot pressure sensor 103 which are arranged on the sterilization pot 100; a tank level sensor 202, a tank temperature sensor 203, a tank pressure sensor 204 mounted on the hot water tank 200.

A pot door 104 is arranged at one side of the sterilization pot 100, the sterilization pot is connected with a pot water inlet pipe, a pot water outlet pipe 120, a pot steam inlet pipe 130 and a pot exhaust pipe 140, and a pot water inlet valve, a pot water outlet valve 121, a pot temperature rise valve 131 and a pot exhaust valve are respectively arranged on the pot water inlet pipe, the pot water outlet pipe 120, the pot steam inlet pipe 130 and the pot exhaust pipe 140.

The pot exhaust valve includes a pot large exhaust valve 141 and a pot small exhaust valve 142, the pot small exhaust valve 142 is installed at the middle section of the pot exhaust pipe 140, and the pot large exhaust valve 141 is installed at the end of the pot exhaust pipe 140.

The top of the inner cavity of the sterilization pot 100 is provided with a spray pipe 150, the pot inlet pipe comprises a first pot inlet pipe 111 connected with the spray pipe 150 and a second pot inlet pipe 112 for directly injecting hot water into the inner cavity of the sterilization pot 100, the first pot inlet pipe 111 and the second pot inlet pipe 112 are arranged in parallel, and the pot inlet valve comprises a first pot inlet valve 113 and a second pot inlet valve 114 which are respectively arranged on the first pot inlet pipe 111 and the second pot inlet pipe 112.

The pan outlet pipe 120 is also connected with a drain pipe 160 and a drain valve 161.

The hot water tank 200 is connected with a tank inlet and outlet water pipe 210, a tank inlet pipe 220 and a tank exhaust pipe 230, the tank inlet and outlet water pipe 210, the tank inlet pipe 220 and the tank exhaust pipe 230 are respectively provided with a tank inlet and outlet water valve 211, a tank heating valve 221 and a tank exhaust valve 231, the tank exhaust pipe 140 and the tank exhaust pipe 230 are connected through a balance pipe 240, and the balance pipe 240 is provided with a balance valve 241.

The sterilization pot device also comprises a circulating pipeline 300, a circulating pump 301, a cold water inlet pipe 400 and a cold water pump 401, wherein a cold water inlet valve 402 is arranged on the cold water inlet pipe 400.

The circulation pipeline 300 is connected with the boiler water outlet pipe 120 and the boiler water inlet pipe, is connected with the first boiler water inlet pipe 111 during water bath type sterilization, and is connected with the first fluid outlet 702 of the heat exchanger through the second boiler water inlet pipe 701 during spray type sterilization.

The tank inlet and outlet water pipe 210 is connected to the circulation pipe 300, and the cold water inlet pipe 400 is connected to the circulation pipe 300 between the tank inlet and outlet water pipe 210 and the circulation pump 301.

A hot water recovery pipe 500 is connected between the circulation pipe 300 and the tank inlet/outlet pipe 210, and a hot water recovery valve 501 is installed on the hot water recovery pipe 500.

The circulation pipe 300 is also connected with a drain pipe 600 for discharging cold water to the cold water tank, and the drain pipe 600 is provided with a pot drain valve 601.

The cold water inlet pipe 400, the cold water pump 401, the circulation pipe 300, and the tank water inlet and outlet pipe 210 together constitute a tank water injection pipe for injecting water into the hot water tank 200.

The tank inlet/outlet water pipe 210, the circulation pipe 300, the circulation pump 301, and the second pot inlet pipe 112 together constitute a pot water injection pipe for injecting hot water into the sterilization pot 100.

The water bath sterilization circulating pipeline is formed by the pot water outlet pipe 120, the circulating pipeline 300, the circulating pump 301 and the first pot water inlet pipe 111.

The boiler outlet pipe 120, the circulation pipe 300, the circulation pump 301, the hot water recovery pipe 500, and the tank inlet/outlet pipe 210 together constitute a hot water recovery pipeline that recovers hot water to the hot water tank 200.

The cold water inlet pipe 400, the cold water pump 401, the circulating pipeline 300 and the pan water outlet pipe 120 jointly form a water bath cooling pipeline.

The pan water outlet pipe 120, the circulation pipeline 300, the circulation pump 301 and the water outlet pipe 600 together form a pan water outlet pipeline.

The tank inlet and outlet water pipe 210, the circulation pipeline 300, the circulation pump 301 and the second pan inlet pipe 112 together form a spraying pipeline for spraying and sterilizing.

The pan inlet and outlet pipe 120, the circulation pipeline 300, the circulation pump 301 and the second pan inlet pipe 112 together form a spraying circulation pipeline.

The sterilization pot device further comprises a heat exchanger 700, the circulating pipeline 300 is connected with a first fluid inlet 701 of the heat exchanger 700 through a circulating pump 301 and a first pot water inlet pipe 111, and a first fluid outlet 702 of the heat exchanger is connected with a pot water inlet pipe (the first pot water inlet pipe 111 is connected during water bath sterilization, and the second pot water inlet pipe 112 is connected during spray sterilization).

The second fluid inlet 703 of the heat exchanger 700 is connected to the cold water inlet pipe 400 via an indirect cooling cold water inlet pipe 710, and the second fluid outlet 704 is connected to the cold water reservoir. And a heat exchanger indirect cooling valve 711 is arranged on the indirect cooling water inlet pipe 710.

The boiler water outlet pipe 120, the circulating pipeline 300, the circulating pump 301, the heat exchanger first fluid inlet 701, the heat exchanger first fluid outlet 702 and the boiler water inlet pipe jointly form a heat exchanger first fluid circulating pipeline; the cold water inlet pipe 400, the cold water pump 401, the heat exchanger second fluid inlet 703, the heat exchanger second fluid outlet 704 and the cold water pool jointly form a heat exchanger second fluid circulation pipeline.

In the present invention, the electrical control system is used to control the opening and closing of various valves, the starting and stopping of pumps, and the electrical connections of the pressure sensor, the temperature sensor and the liquid level sensor, which are conventional technical means in the prior art, and those skilled in the art can understand and make adaptive adjustments according to actual needs, so that the detailed description of the electrical control system is omitted in the present invention.

The specific working process of the embodiment of the invention is as follows:

1. the water bath type sterilization process:

before sterilization, the cold water pump 401, the cold water inlet valve 402 and the tank water inlet/outlet valve 211 are opened, and a set amount of water is injected into the hot water tank 200 through the tank water injection pipeline, and the injection amount is displayed and controlled by the tank liquid level sensor 202.

After the water injection is completed, the cold water pump 401 and the cold water inlet valve 402 are closed, the tank outlet valve 231 and the tank temperature raising valve 221 are opened, and the tank outlet valve 231 is closed when the temperature of the water in the hot water tank 200 is raised to about 90 degrees. The water in the hot water tank 200 is continuously heated to the set sterilization temperature, and the temperature is controlled by the tank temperature sensor 203. When the temperature reaches the set sterilization temperature, the tank temperature-increasing valve 221 is automatically closed, and the temperature increase of the hot water tank 200 is completed.

When a product needing sterilization enters the sterilization pot 100 from the pot door 104, the pot door 104 is closed, the pot water inlet and outlet valve 211, the first pot water inlet valve 113 and the circulating pump 301 are opened, hot water in the hot water pot 200 is injected into the sterilization pot 100 under the action of the circulating pump 301 through the pot water injection pipeline, and the injection amount is displayed and controlled by the pot liquid level sensor 101.

After the water injection is finished, the water inlet and outlet valve 211 of the tank is closed, the water outlet valve 121 of the pot is opened to enable the water in the sterilization pot 100 to circulate through the water bath sterilization circulation pipeline, and the temperature rising valve 131 of the pot is opened to enable the temperature in the pot to rise to the sterilization temperature, wherein the temperature is controlled by the pot temperature sensor 102.

After the temperature rise is completed, the pot temperature rise valve 131 is closed. When the temperature in the pot is lower than the sterilization temperature, the pot temperature-raising valve 131 is opened, and is automatically closed when reaching the upper temperature limit until the sterilization constant temperature is finished.

After the sterilization is finished, the first boiler inlet valve 113 and the boiler temperature raising valve 131 are closed, the hot water recovery valve 501 is opened, and the hot water sterilized in the boiler is recovered to the hot water tank 200 through the hot water recovery pipeline.

And after recovery, closing the circulating pump 301 and the hot water recovery valve 501, opening the cold water inlet valve 402 and the cold water pump 401, and injecting cooling water into the pot through the water bath cooling pipeline, wherein the injection amount is displayed and controlled by the pot liquid level sensor 101.

After the cold water injection is finished, the cold water inlet valve 402 and the cold water pump 401 are automatically closed, the circulating pump 301 and the first pot water inlet valve 113 are opened, and the cold water circulates in the pot through the water bath sterilization circulating pipeline to cool the product. The temperature after the temperature reduction is displayed and controlled by the pot temperature sensor 102.

After the temperature reduction is finished, the first boiler water inlet valve 113 is closed, the boiler water outlet valve 601 is opened, and the temperature reduction water in the boiler is discharged to the cold water pool through the boiler water outlet pipeline. After the cooling water in the pan is drained, the pan outlet valve 121, the circulating pump 301 and the pan drain valve 601 are closed.

And opening the pot door 104 to take out the product, and ending the water bath type sterilization process. The water bath type sterilization process of the next pot is the same as the above.

2. Steam type sterilization process:

when the materials to be sterilized enter the sterilizer 100 from the door 104, the door 104 is closed. The big boiler exhaust valve 141 is opened, the boiler temperature-rising valve 131 is opened, and after the cold air in the boiler is exhausted, the big boiler exhaust valve 141 is closed, and the temperature in the boiler is continuously raised. When the temperature in the pot reaches the set sterilization temperature, the pot temperature-raising valve 131 is closed and controlled by the pot temperature sensor 102, when the temperature in the pot is lower than the sterilization temperature, the pot temperature-raising valve 131 is opened again and automatically closed when the temperature is reached, and the temperature difference between the upper temperature and the lower temperature is +/-0.5 ℃ until the sterilization constant temperature is finished.

The condensed water generated during sterilization is drained through the pan outlet pipe 120 and the drain pipe 160.

After sterilization is finished, a cold water inlet valve 402 and a cold water pump 401 are opened, cooling water is injected into the pot through a water bath cooling pipeline, and the injection amount is displayed and controlled by a pot liquid level sensor 101.

After the cold water injection is finished, the cold water inlet valve 402 and the cold water pump 401 are closed, the circulating pump 301 and the first pot water inlet valve 113 are opened at the same time, and the cold water circulates in the pot through the water bath sterilization circulating pipeline to cool the product.

The temperature after the temperature reduction is displayed and controlled by the pot temperature sensor 102.

After the temperature reduction is finished, the first boiler water inlet valve 113 is closed, the boiler water outlet valve 601 is opened, and the temperature reduction water in the boiler is discharged to the cold water tank through the boiler water outlet pipeline. After the cooling water in the pan is drained, the circulating pump 301 and the pan drain valve 601 are closed.

And opening the pot door 104 to take out the product, and ending the steam sterilization process. The next steam sterilization process is the same as above.

3. Spray type sterilization process

The cold water pump 401 and cold water inlet valve 402 are turned on, and the tank inlet/outlet water valve 211 is automatically turned on, and a set small amount of water is injected into the hot water tank 200 through the tank water injection pipeline until the sterilization pot is circulated, the injection amount being displayed and controlled by the tank liquid level sensor 202.

After the water injection is completed, the cold water pump 401 and the cold water inlet valve 402 are closed, the tank outlet valve 231 and the tank temperature raising valve 221 are opened, and when the temperature of the water in the tank is raised to about 80 to 90 degrees, the tank temperature raising valve 221 and the tank outlet valve 231 are closed, and the temperature thereof is automatically controlled by the tank temperature sensor 203. The temperature rise of a small amount of water in the hot water tank 200 is finished.

When a product to be sterilized enters the sterilization pot 100 from the pot door 104, the pot door 104 is closed, the second pot water inlet valve 114, the pot water inlet and outlet valve 211 and the circulating pump 301 are opened, hot water at 80 to 90 degrees in the pot is injected into the sterilization pot 100 through the heat exchanger 700 and the spraying pipe 150 under the action of the circulating pump 301 through the spraying pipeline, and the injection amount is displayed and controlled by the pot liquid level sensor 101.

After the water injection is finished, the water inlet and outlet valve 211 of the pot is closed, the water outlet valve 121 of the pot is opened, the water in the pot is circulated through the spraying circulation pipeline, the temperature rising valve 131 of the pot is opened, the temperature in the pot is raised to the sterilization temperature, and the temperature is controlled by the pot temperature sensor 102. After the temperature rise is completed, the pot temperature rise valve 131 is closed.

When the temperature in the pot is lower than the sterilization temperature, the pot temperature-raising valve 131 is opened again, and is closed when the temperature is reached until the sterilization constant temperature is finished.

After the sterilization is finished, the sterilization water in the pot is continuously circulated, so that the product in the pot is prevented from being cracked when being cooled, the heat exchanger is used for slowly cooling, and the specific process is as follows:

and the heat exchanger indirect cooling valve 711 and the cold water pump 401 are started, and hot water in the pot exchanges heat with cold water in a second fluid circulation pipeline of the heat exchanger through the first fluid circulation pipeline of the heat exchanger, so that the temperature in the pot is indirectly and slowly reduced.

After the temperature reduction is finished, the heat exchanger indirect temperature reduction valve 711, the cold water pump 401 and the second boiler water inlet valve 114 are closed, the hot water recovery valve 501 and the circulating pump 301 are opened, and the sterilization hot water in the boiler is recovered to the hot water tank 200 through the hot water recovery pipeline.

The sterilized water returns to the hot water tank 200 and then is automatically heated to 80 to 90 ℃ for the next pot to be used. After recovery is completed, the circulation pump 301, the hot water recovery valve 501 and the boiler outlet valve 121 are closed. And opening the pot door 104 to take out the product, and ending the spray type sterilization process. The next spraying type sterilization process is the same as the above.

In the invention, the temperature is slowly reduced through the heat exchanger, so that the method is not limited to a spray type sterilization process, and is also suitable for a water bath type sterilization process.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.