CN106819758A - A kind of test-type composite sterilizing system - Google Patents

Abstract

The invention relates to an experimental composite sterilizing system. The system includes a tube type sterilization unit, a scraper type sterilization unit, a hopper (3), a viscosity sensor and a controller. The three-way reversing valve (17) communicates with the hopper (3) to form two circulation loops. The viscosity sensor is arranged in the hopper (3) and connected to the output end of the controller, and the output end of the controller communicates with the The input three-way reversing valve (11) and the output three-way reversing valve (17); the viscosity sensor detects the viscosity of the material and controls the input three-way reversing valve (11) and the output three-way reversing valve (17) to open through the controller Direction, tube type sterilization unit or scraper type sterilization unit work. Compared with the prior art, the invention has the advantages of simple structure, small volume, convenient operation, suitable for experiment use, and automatic sterilization treatment of materials with different viscosities.

Description

An Experimental Compound Sterilization System

technical field

The invention relates to a sterilizing system, in particular to an experimental compound sterilizing system.

Background technique

The food processing industry usually needs to sterilize food raw materials to stabilize food quality. At present, the commonly used sterilization method is heat sterilization, because high temperature has obvious lethal effect on bacteria, high temperature denatures and coagulates the bacteria, loses the activity of enzymes, and kills the bacteria.

The current sterilization system is mainly used for sterilization of liquid materials or high-viscosity, high-concentration materials. Among them, liquid materials such as juice, juice drinks, milk, milk products, sauces (condiments) and soups, etc., high-viscosity, high-concentration materials such as tomato sauce, etc. The existing sterilization system has a single form of sterilization and cannot be applied to liquid materials and high-viscosity, high-concentration materials at the same time, so the application range is relatively narrow. It is relatively large, the operation and maintenance are relatively complicated, and it covers a large area, so it is not suitable for experimental operations.

Contents of the invention

The object of the present invention is to provide an experimental compound sterilization system in order to overcome the above-mentioned defects in the prior art.

The purpose of the present invention can be achieved through the following technical solutions:

An experimental composite sterilization system, which includes a tube type sterilization unit, a scraper type sterilization unit, a hopper, a viscosity sensor and a controller. The valve and the output three-way reversing valve are connected to the hopper to form two circulation loops, the viscosity sensor is arranged in the hopper and connected to the output end of the controller, and the output end of the controller is connected to the input three-way reversing valve and output three-way reversing valve;

The viscosity sensor detects the viscosity of the material and controls the opening direction of the input three-way reversing valve and the output three-way reversing valve through the controller, and then the tube type sterilization unit or scraper type sterilization unit works.

Both the tube-type sterilization unit and the scraper-type heating unit include a preheating section, a heating section, and a cooling section that are sequentially connected by pipelines, and the pipeline between the heating section and the cooling section is a temperature-maintaining tube. The temperature-maintaining tube is detachably connected, preheated through the preheating section, then heated through the heating section, and sterilized by heating twice to make the sterilization effect better, and finally cool the material to normal temperature through the cooling section.

The preheating section, the heating section and the cooling section of the tubular sterilization unit all include sleeves, and the sleeves are double-layered, including an inner cavity and an outer cavity, and the inner cavity Connected and connected to the hopper in turn, the outer cavity flows through the liquid at the set temperature respectively. This type of tubular sterilization unit has a simple structure, and the convection between the liquid at the set temperature and the material in the inner cavity through the outer cavity realizes heat exchange. It is suitable for heat sterilization of low-viscosity, low-concentration materials (such as milk, etc.).

The preheating section, heating section and cooling section of the scraper heating unit all include a casing, a rotating scraper and a drive motor, and the casing is a double-layer structure, including an inner cavity and an outer cavity, The rotating scrapers are respectively arranged in the inner cavity, the driving motor is connected to the rotating scraper, each inner cavity is connected to and connected to the hopper in sequence, and each outer cavity is respectively circulated with liquid at a set temperature. , This kind of scraper type heating unit is suitable for heat sterilization of high viscosity and high concentration materials (such as tomato paste, etc.), through the rotation of the rotating scraper, the material is heated evenly, preventing the material from burning and affecting product quality.

The system also includes a first heat supply device and a second heat supply device, both of which are provided with a liquid inlet and a liquid outlet, and the liquid inlet and liquid outlet of the first heat supply device respectively pass through three The reversing valve connects the tube type sterilization unit and the scraper type heating unit to the outer cavity of the casing of the preheating section and the heating section to form a heating cycle, and the three-way reversing valves are all connected to the controller.

The first heat supply device and the second heat supply device both include a heat transfer liquid, a heater, a heating tank and a circulation pump, the heat transfer liquid and the heater are arranged in the hot water tank, and the circulation pump is connected to In the heating cycle described above.

The casing outer cavities of the cooling section of the tubular sterilizing unit and the scraper heating unit are respectively connected with tap water to form a cooling circulation loop, and the tap water flows in the outer cavity to form convection with the material in the inner cavity, thereby performing Effective cooling.

A material pump and a pipeline safety valve are connected in series between the hopper and the input three-way reversing valve. The material pump is conducive to introducing the material into the inner cavity of the casing in the tube type sterilization unit and the scraper type heating unit. The pipeline safety valve can effectively control the pressure to prevent the system from being damaged due to excessive pressure.

The output three-way reversing valve and the hopper are also connected in turn with a pressure gauge and a pipeline back pressure valve. Since the high-temperature sterilization temperature must reach 150°C, which cannot be achieved under normal pressure, the output three-way changeover Add a pressure gauge and line back pressure valve after the valve to monitor and control the pressure to the desired pressure.

The outlets of the preheating section, heating section and cooling section of the tube type sterilization unit and the scraper type heating unit are equipped with temperature probes, and the temperature probes are all connected to the controller, which can detect the actual temperature of the material in real time and timely Make corresponding controls to ensure the quality of materials.

Compared with prior art, the present invention has following advantage:

(1) The sterilization system combines the tube type sterilization unit and the scraper type sterilization unit, and can use different sterilization units to sterilize materials with different viscosities. The scraper type sterilization unit is used to sterilize, which can ensure the quality of the material while achieving the sterilization effect;

(2) Automatically identify the viscosity of the material by setting the viscosity sensor to realize automatic operation;

(3) The structure of the sterilization system is relatively compact, small in size, does not destroy nutrients, can ensure the quality of finished products, and is suitable for experimental operations.

Description of drawings

Fig. 1 is a schematic structural diagram of the compound sterilization system of the present invention.

In the figure, 1 is the material pump; 2 is the pipeline safety valve; 3 is the hopper; 4 is the tubular preheating section; 5 is the tubular heating section; Plate preheating section, 9 is scraper heating section, 10 is scraper cooling section, 11 is input three-way reversing valve, 12 is pressure gauge, 13 is pipeline back pressure valve, 14 is heater, 15 is heating tank, 16 is a circulation pump, 17 is an output three-way reversing valve, 18 is a heater output three-way reversing valve, 19 is a heater input three-way reversing valve, and 20 is a temperature probe.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figure 1, an experimental compound sterilization system includes a tube type sterilization unit, a scraper type sterilization unit, a hopper 3, a viscosity sensor and a controller, the two sterilization units are connected in parallel, and the input and output ends The input three-way reversing valve 11 and the output three-way reversing valve 17 are respectively connected to the hopper 3 to form two circulation loops. The viscosity sensor is arranged in the hopper 3 and connected to the controller output. The controller outputs The terminal is connected to the input three-way reversing valve 11 and the output three-way reversing valve 17, and the capacity of the hopper 3 is 5L; the viscosity sensor detects the viscosity of the material and controls the input three-way reversing valve 11 and the output three-way reversing valve 11 through the controller. Through the open direction of the reversing valve 17, and then the tube type sterilization unit or the scraper type sterilization unit works.

The tube-type sterilization unit and the scraper-type heating unit both include a preheating section, a heating section and a cooling section connected sequentially through pipelines, and the pipeline between the heating section and the cooling section is a temperature-maintaining pipe 6, The temperature-holding tube 6 is detachably connected, and can be selected by replacing the temperature-holding tube 6 with different temperature-holding time, including 5S, 15S, 30S, etc. Preheating through the preheating section, then heating through the heating section, after two times of heating and sterilization, the sterilization effect is better, and finally the material is cooled to normal temperature through the cooling section.

The preheating section, heating section and cooling section of the tubular sterilization unit are respectively tubular preheating section 4, tubular heating section 5 and tubular cooling section 7, tubular preheating section 4, tubular heating section 5 and the tubular cooling section 7 all include a casing, the casing is a double-layer structure, including an inner cavity and an outer cavity, and the inner cavity is sequentially communicated and connected to the hopper 3, and the outer cavity The liquids of the set temperature are circulated separately. In this embodiment, the hot water of the set temperature is circulated. This kind of tubular sterilization unit has a simple structure. Through the convection between the liquid of the set temperature in the outer cavity and the material in the inner cavity, the heat can be realized. Exchange, suitable for heat sterilization of low-viscosity, low-concentration materials (such as milk, etc.). The preheating section, heating section and cooling section of the scraper heating unit are scraper preheating section 8, scraper heating section 9 and scraper cooling section 10, scraper preheating section 8, scraper heating section 9 and the scraper cooling section 10 all include a casing, a rotating scraper and a drive motor, the casing is a double-layer structure, including an inner cavity and an outer cavity, and the rotating scrapers are respectively arranged on the The inner cavity of the inner layer, the driving motor is connected to the rotating scraper, and each inner cavity is connected to the hopper 3 in turn, and each outer cavity is respectively circulated with a liquid at a set temperature. This scraper type heating unit is suitable for high-viscosity 1. Heat sterilization of high-concentration materials (such as tomato paste, etc.), through the rotation of the rotating scraper, the materials are heated evenly to prevent the materials from being burnt and affecting product quality.

In addition, the system also includes a first heat supply device and a second heat supply device, both of which are provided with a liquid inlet and a liquid outlet, and the liquid inlet and liquid outlet of the first heat supply device respectively pass through three The reversing valve connects the tube type sterilization unit and the scraper type heating unit to the outer cavity of the casing of the preheating section and the heating section to form a heating cycle, and the three-way reversing valves are all connected to the controller. Both the first heat supply device and the second heat supply device include a heat transfer liquid, a heater 14, a heating tank 15 and a circulation pump 16, and the heat transfer liquid and the heater 14 are arranged in the hot water tank 15, and the The circulating pump 16 is connected in the heating circulation loop. In this embodiment, the heat conduction liquid is water, and the water is heated to a set temperature to form a circulation loop for heat exchange. The casing outer cavities of the cooling section of the tubular sterilizing unit and the scraper heating unit are respectively connected with tap water to form a cooling circulation loop, and the tap water flows in the outer cavity to form convection with the material in the inner cavity, thereby performing Effective cooling.

A material pump 1 and a pipeline safety valve 2 are connected in series between the hopper 3 and the input three-way reversing valve 11. The material pump 1 is conducive to introducing the material into the inner layer of the casing in the tube type sterilization unit and the scraper type heating unit. In the cavity, setting the pipeline safety valve 2 can effectively control the pressure to prevent the system from being damaged due to excessive pressure. The output three-way reversing valve 17 and the hopper 3 are also connected in turn with a pressure gauge 12 and a pipeline back pressure valve 13. Since the high-temperature sterilization temperature must reach 150°C, it cannot be reached under normal pressure, so in A pressure gauge 12 and a pipeline back pressure valve 13 are added behind the output three-way reversing valve 17 to monitor and control the pressure to reach the required pressure. The outlets of the tubular preheating section 4, tubular heating section 5, tubular cooling section 7, scraper preheating section 8, scraper heating section 9 and scraper cooling section 10 are all equipped with temperature probes 20, so The above-mentioned temperature probes 20 are all connected to the controller, which can detect the actual temperature of the material in real time and make corresponding control in time to ensure the quality of the material.

The difference between the tube type sterilization unit and the scraper type sterilization unit of the present invention is that the tube type sterilization unit is suitable for low-viscosity, low-concentration materials (such as milk); the scraper type sterilization unit is suitable for high-viscosity, high-concentration materials (such as tomato paste); The two systems are integrated in an automatic system, which not only facilitates the various process conditions required by the experiment, but also is suitable for product testing of various viscosities; it solves the problem that the existing sterilization system has a large capacity or a single sterilization form and a large volume. It is relatively large, the operation and maintenance are relatively complicated, the floor area is large, and it is not suitable for the difficulty of experimental operation.

Claims (10)

1. a kind of test-type composite sterilizing system, it is characterised in that the system includes tubular type sterili-sation unit, scrapes Board-like sterili-sation unit, hopper (3), viscosity sensor and controller, two sterili-sation units are connected in parallel, its input End connects hopper (3) by being input into three-way diverter valve (11) with output three-way diverter valve (17) respectively with output end Two circulation loops are formed, described viscosity sensor is arranged in hopper (3) and is connected to controller output end, The described input three-way diverter valve (11) of described controller output end connection and output three-way diverter valve (17)；

Viscosity sensor detects material viscosity and by controller control input three-way diverter valve (11) and output threeway Reversal valve (17) opens direction, and then tubular type sterili-sation unit or the work of scraper-type sterili-sation unit.

2. a kind of test-type composite sterilizing system according to claim 1, it is characterised in that described Tubular type sterili-sation unit and scraper-type heating unit include the preheating section, bringing-up section and the cooling that are sequentially connected by pipeline Section, the pipeline between described bringing-up section and cooling section is to hold temperature pipe (6), and described holds temperature pipe (6) detachably Connection.

3. a kind of test-type composite sterilizing system according to claim 2, it is characterised in that described The preheating section of tubular type sterili-sation unit, bringing-up section and cooling section include sleeve pipe, and described sleeve pipe is double-decker, bag Internal layer cavity and outer layer cavity are included, described internal layer cavity is sequentially communicated and connects hopper (3), outer layer cavity difference The liquid of circulation design temperature.

4. a kind of test-type composite sterilizing system according to claim 2, it is characterised in that described The preheating section of scraper-type heating unit, bringing-up section and cooling section include sleeve pipe, rotor segment and motor, institute The sleeve pipe stated is double-decker, including internal layer cavity and outer layer cavity, described rotor segment are separately positioned on described Internal layer cavity, described motor connection rotor segment, each internal layer cavity is sequentially communicated and connects hopper (3), Each outer layer cavity circulates the liquid of design temperature respectively.

5. a kind of test-type composite sterilizing system according to claim 4, it is characterised in that the system Also include the first heating plant and the second heating plant, two heating plants are equipped with inlet and liquid outlet, described The first heating plant inlet and liquid outlet respectively pass through three-way diverter valve communicating pipe sterili-sation unit and scraper-type The outer layer cavity of the sleeve pipe of heating unit preheating section and bringing-up section forms heat cycles loop, described three-way diverter valve It is all connected with controller.

6. a kind of test-type composite sterilizing system according to claim 5, it is characterised in that described First heating plant and the second heating plant include heat-conducting liquid, heater (14), heating tank (15) and follow Ring pump (16), described heat-conducting liquid and heater (14) are arranged in hot-water cylinder (15), described circulation Pump (16) is connected in described heat cycles loop.

7. a kind of test-type composite sterilizing system according to claim 4, it is characterised in that described The set outer tube layer cavity of tubular type sterili-sation unit and scraper-type heating unit cooling section is respectively communicated with running water and forms cooling Circulation loop.

8. a kind of test-type composite sterilizing system according to claim 1, it is characterised in that described Product pump (1) and pipeline safety valve (2) have been sequentially connected in series between hopper (3) and input three-way diverter valve.

9. a kind of test-type composite sterilizing system according to claim 1, it is characterised in that described Pressure gauge (12) and pipeline counterbalance valve are also connected with turn between output three-way diverter valve (17) and hopper (3) (13)。

10. a kind of test-type composite sterilizing system according to claim 1, it is characterised in that described The preheating section of tubular type sterili-sation unit and scraper-type heating unit, bringing-up section and cooling section exit are equipped with temp probe (20), described temp probe (20) is connected to controller.