Heat accumulating type energy-saving tubular sterilization machine

Abstract

The utility model discloses a heat storage type energy-saving tubular sterilization machine which comprises a charging bucket, a preheating section, a heating section, a sterilization section and a heat storage mechanism, the heat storage mechanism comprises a heat preservation box body, an air inlet pipe and an air outlet pipe, heat storage bricks are arranged in the heat preservation box body, parallel air channels are defined by the heat storage bricks, electric heating elements are arranged in the parallel air channels, and turbulent air nozzles in one-to-one correspondence with the parallel air channels are arranged at an outlet of the air inlet pipe. The air inlet pipe and the air outlet pipe are both communicated with the inner cavity of the shell, and a fan is arranged on the air outlet pipe; according to the utility model, in a peak-valley time-of-use electricity price implementation area, electric heating energy can be manually controlled to be stored in the heat storage bricks when the electricity price is low at night, and when the electricity price is high in daytime, the heat storage mechanism is adopted to replace direct electric heating to be supplied to a machine to run for a period of time; and when the stored heat is used up or the daily electricity price is relatively low and the temperature of the heat storage heating mode cannot meet the heating requirement, the direct electric heating auxiliary mode can be switched, so that the aim of integrally reducing the electricity utilization cost of the machine is fulfilled.

Description

Technical Field

[0001] The utility model relates to the field of food machinery, in particular to a heat storage energy-saving tubular sterilizer. Background Art

[0002] Tubular sterilizers are widely used for sterilizing liquid foods such as juice drinks. They have the advantages of reliable operation and good sterilization effect. However, in actual production and use, it is found that existing tubular sterilizers generally use electricity for heating, which consumes a lot of electricity and has high operating costs. Therefore, there is a need for a tubular sterilizer that can effectively reduce electricity costs. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the present utility model is to provide a heat storage energy-saving tubular sterilizer, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A heat storage type energy-saving tubular sterilizer, comprising a material tank, a preheating section, a heating section, a sterilization section and a heat storage mechanism; the preheating section comprises an outer tube and an inner tube arranged coaxially, the inlet of the outer tube is connected to the material tank and a pump is arranged on the outer tube; the heating section comprises a shell and an electric heating element and a heated coil arranged in the shell, the outlet of the outer tube is connected to the inlet of the heated coil, and the inlet side of the heated coil is also connected to an emptying pipe with a valve; the outlet of the heated coil is connected to the inlet of the sterilization section, and the outlet of the sterilization section is connected to the inlet of the inner tube; the heat storage mechanism comprises an insulation box, an air inlet pipe and an air outlet pipe, the insulation box is provided with heat storage bricks, the heat storage bricks are surrounded by a plurality of parallel air ducts, the parallel air ducts are also provided with electric heating elements, the outlet of the air inlet pipe is provided with a turbulent air nozzle corresponding to the parallel air ducts one by one, the air inlet pipe and the air outlet pipe are both connected to the inner cavity of the shell and the air outlet pipe is provided with a fan.

[0006] Furthermore, an air distribution hood is provided at the outlet of the air inlet pipe, and the turbulent air nozzle is mounted on the air distribution hood.

[0007] Furthermore, the turbulent wind nozzle includes a wind nozzle shell, a guide block, a spoiler block and a swirl blade. The wind nozzle shell includes a head section, a tapered section and a tail section. The guide block includes two symmetrically arranged cones, wherein the outer circumferential surface of one cone is parallel to the inner side of the tapered section. The two ends of the spoiler block are respectively fixedly connected to the guide block and the tapered section. There are multiple spoiler blocks evenly distributed circumferentially along the cross-section of the tapered section. The cross-section of the spoiler block is an isosceles trapezoid and the longer side of the parallel sides of the isosceles trapezoid faces the incoming wind direction; the swirl blade is located in the tail section, and the swirl blade includes a central column and blades evenly distributed circumferentially on the circumferential surface of the central column, and the distal end of the blade is fixedly connected to the inner side of the tail section.

[0008] Furthermore, the electric heating element is an electric heating tube.

[0009] Furthermore, a plurality of guide umbrella skirts are evenly distributed along the axial direction on the electric heating tubes in the parallel air ducts.

[0010] Furthermore, trumpet-shaped air guide covers are respectively arranged on the left and right sides of the inner cavity of the shell, and the air inlet pipe and the air outlet pipe are respectively connected to an air guide cover.

[0011] Furthermore, a temporary pipeline is arranged between the inner tube and the outer tube, a water bucket is arranged on the temporary pipeline, valves are arranged on the temporary pipelines at the outlet and inlet sides of the water bucket respectively, a metering pump, a temperature probe and two valves are arranged on the inner tube, the two valves on the inner tube are respectively located on the upstream and downstream sides of the interface between the temporary pipeline and the inner tube, a valve and a temperature probe are also arranged on the outer tube, and the valve on the outer tube is arranged close to the material tank.

[0012] Furthermore, the sterilization section is provided with a safety pressure relief valve, two pressure gauges and two temperature probes, the two pressure gauges are respectively located at the inlet side and the outlet side of the sterilization section, and the two temperature probes are also respectively located at the inlet side and the outlet side of the sterilization section.

[0013] The utility model has the following beneficial technical effects:

[0014] The utility model applies a heat storage mechanism, and in the area where peak and valley time-of-use electricity prices are implemented, the electric heating energy can be artificially controlled to be stored in the heat storage bricks when the valley electricity price is low at night. When the daytime electricity price is high, the heat storage mechanism is used instead of direct electric heating to supply the machine to run for a period of time, and when the heat storage is exhausted or the daytime electricity price is low and the temperature of the heat storage heating mode does not meet the heating requirements, it can be switched to the direct electric heating auxiliary mode, thereby achieving the purpose of reducing the overall electricity cost of the machine, which is beneficial to the daily operation and production of the enterprise and also beneficial to reducing the burden on the power grid, killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the heating section in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the heat storage mechanism in the embodiment of the utility model;

[0018] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0019] Figure 5It is a schematic diagram of the overall structure of the swirl blade in the embodiment of the utility model. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] like Figure 1-5 As shown, a heat storage energy-saving tubular sterilizer described in this embodiment includes a material tank 1, a preheating section 2, a heating section 3, a sterilization section 4 and a heat storage mechanism 5; the preheating section 2 includes a coaxially arranged outer tube 6 and an inner tube 7, both of which are made of stainless steel, the inlet of the outer tube 6 is connected to the material tank 1 and a pump is provided on the outer tube 6; preferably, a heat preservation shell 8 is provided on the outer side of part of the outer tube 6 and the inner tube 7 to weaken the process of heat loss to the external environment;

[0023] The heating section 3 includes a shell 9 and an electric heating element 10 and a heating coil 11 arranged in the shell 9. The inner side of the shell 9 is provided with a heat preservation layer. The electric heating element 10 is an electric heating tube. The heating coil 11 is divided into an upper and lower layer. The electric heating tubes are distributed on the upper and lower sides of the heating coil 11. The outlet of the outer tube 6 is connected to the inlet of the heating coil 11. The inlet side of the heating coil 11 is also connected to an emptying pipe 12 with a valve; the outlet of the heating coil 11 is connected to the inlet of the sterilization section 4, and the outlet of the sterilization section 4 is connected to the inlet of the inner tube 7;

[0024] The heat storage mechanism 5 includes a heat preservation box 13, an air inlet pipe 14 and an air outlet pipe 15. The heat preservation box 13 is provided with heat storage bricks 16. The heat storage bricks 16 are surrounded by a plurality of parallel air ducts 17. The parallel air ducts 17 are connected from left to right. An electric heating element 10 is also provided in the parallel air ducts 17. The electric heating element 10 is also an electric heating tube. A plurality of guide umbrella skirts 18 are evenly distributed along the axial direction on the electric heating tube 10. During the flow of air from left to right, the airflow is guided by the guide umbrella skirts 18, and the airflow is forced to contact the heat storage bricks 16 around the electric heating tube, so as to avoid the airflow in the parallel air ducts 17 directly passing through without contacting the heat storage Brick 16 is in contact; a turbulent air nozzle corresponding to the parallel air duct 17 is arranged at the outlet of the air inlet pipe 14, the air inlet pipe 14 and the air outlet pipe 15 are both connected to the inner cavity of the shell 9, and the air outlet pipe 15 is provided with a fan. Specifically, trumpet-shaped air guide covers 19 are respectively arranged on the left and right sides of the inner cavity of the shell 9, and the inlet of the air inlet pipe 14 and the outlet of the air outlet pipe 15 are respectively connected to an air guide cover 19; an air distribution cover 20 is arranged at the outlet of the air inlet pipe 14, and the turbulent air nozzle is installed on the air distribution cover 20, and preferably, an air collecting cover 21 is correspondingly arranged at the inlet of the air outlet pipe 15, and the air collecting cover 21 has openings on the left and right sides.

[0025] The above-mentioned turbulent air nozzle includes a nozzle shell 22, a guide block 23, a spoiler block 24 and a swirl blade 25. The nozzle shell 22 includes a head section, a tapered section and a tail section that are integrally connected. The guide block 23 includes two symmetrically arranged cones, which are coaxially arranged with the nozzle shell 22. The outer circumferential surface of one of the cones is parallel to the inner side of the tapered section. The spoiler block 24 is arranged perpendicular to the airflow flow direction, and its two ends are respectively fixedly connected to the guide block 23 and the tapered section. There are multiple spoiler blocks 24 evenly distributed circumferentially along the cross-section of the tapered section. The cross-section of the spoiler block 24 is an isosceles trapezoid and the longer side of the parallel sides of the isosceles trapezoid faces the incoming wind direction; the swirl blade 25 is located in the tail section, and the swirl blade 25 includes a central column and blades evenly distributed circumferentially on the circumferential surface of the central column, and the distal end of the blade is fixedly connected to the inner side of the tail section.

[0026] A temporary pipeline 26 is also provided between the inner tube 7 and the outer tube 6, and a water bucket 27 is provided on the temporary pipeline 26. Valves are respectively provided on the temporary pipeline 26 at the outlet and inlet sides of the water bucket 27. A metering pump 28, a temperature probe 29 and two valves are also provided on the inner tube 7. The two valves on the inner tube 7 are respectively located at the upstream and downstream sides of the interface between the temporary pipeline 26 and the inner tube 7. A valve and a temperature probe 29 are also provided on the outer tube 6. The valve on the outer tube 6 is arranged close to the material tank 1; a safety pressure relief valve 30, two pressure gauges and two temperature probes 29 are provided on the sterilization section 4. When the pressure in the sterilization section 4 is too high, the safety pressure relief valve 30 starts to relieve pressure to ensure safe operation. The two pressure gauges are respectively located at the inlet and outlet sides of the sterilization section 4. The two temperature probes 29 are also respectively located at the inlet and outlet sides of the sterilization section 4, which can detect the temperature at both ends of the sterilization section 4 to ensure that the liquid inflow and outflow temperatures meet the sterilization requirements;

[0027] The function of the temporary pipeline 26 is to use water as a medium to make the machine reach the rated working temperature at the initial stage of machine operation. When the machine reaches the rated working temperature, the target sterilization raw materials are introduced to avoid waste of raw materials. The specific process is: open the two valves on the temporary pipeline 26, open the valve on the inner tube 7 located on the upstream side of the interface between the temporary pipeline 26 and the inner tube 7, close the valve on the outer tube 6 close to the material tank 1, and close the valve on the inner tube 7 located on the downstream side of the interface between the temporary pipeline 26 and the inner tube 7, that is, cut off the connection between the material tank 1 and each pipeline, and use the water bucket 27 instead of the material tank 1. The pump pumps the water flow into the outer tube 6, flows through the outer tube 6, the heating coil 11, the sterilization section 4 and the inner tube 7 in sequence, and then returns to the water bucket 27. When the water flow temperature of the sterilization section 4 and the water flow temperature returning to the water bucket 27 meet the sterilization rated conditions, the water flow is drained, the material tank 1 is reconnected to the pipeline system, and then the connection between the water bucket 27 and the pipeline system is cut off to carry out normal sterilization production.

[0028] The working principle of this embodiment is:

[0029] The liquid to be sterilized is located in the material tank 1, and is then pumped into the outer tube 6 by a pump, and then flows through the outer tube 6, the heating coil 11, the sterilization section 4 and the inner tube 7 in sequence and then goes to the downstream filling equipment. The liquid is first heated in the preheating section 2 and the heating section 3, and after reaching the sterilization temperature, it enters the sterilization section 4 and flows for a rated time to ensure the completion of the sterilization process, and then enters the preheating section 2 again to release heat and cool down and preheat the new liquid. After the cooling is completed, the liquid goes to the filling equipment; when the electricity price is lower at night, the electric heating element 10 in the heat storage mechanism 5 is turned on, and the heat storage bricks 16 absorb heat. When the electricity price is higher during the day, the fan is turned on, and the airflow enters the heat storage mechanism 5 to absorb heat and heat up and enters the heating section 3 to assist the heating coil 11 in heating, thereby reducing the electric heating in the heating section 3. The power consumption of the thermal element 10 is reduced, thereby achieving the purpose of reducing the overall electricity cost of the machine, which is beneficial to the daily operation and production of the enterprise, and is also beneficial to reducing the burden on the power grid, killing two birds with one stone; in addition, in the present embodiment, when the airflow enters the heat storage mechanism 5, it flows through the turbulent wind nozzle, and the airflow is accelerated in the tapering section and is disturbed by the spoiler block 24 to form a plurality of small vortices behind the spoiler block 24. The small vortices collide and break with each other in the tail section of the wind nozzle shell 22, forming a turbulent airflow and sent into the parallel air duct 17 to absorb heat. Compared with the stable laminar airflow, the heat exchange efficiency between the turbulent airflow and the heat storage brick 16 is significantly improved, which is beneficial to absorb and take away the heat of the heat storage brick 16, and ensure the hot air temperature delivered by the heat storage mechanism 5 and the heating effect on the heated coil 11 in the heating section 3.

[0030] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A heat storage energy-saving tubular sterilizer, characterized in that: It includes a material tank, a preheating section, a heating section, a sterilization section and a heat storage mechanism; the preheating section includes an outer tube and an inner tube arranged coaxially, the inlet of the outer tube is connected to the material tank and a pump is arranged on the outer tube; the heating section includes a shell and an electric heating element and a heated coil arranged in the shell, the outlet of the outer tube is connected to the inlet of the heated coil, and the inlet side of the heated coil is also connected to an emptying pipe with a valve; the outlet of the heated coil is connected to the inlet of the sterilization section, and the outlet of the sterilization section is connected to the inlet of the inner tube; the heat storage mechanism includes an insulation box, an air inlet pipe and an air outlet pipe, the insulation box is provided with heat storage bricks, the heat storage bricks are surrounded by a plurality of parallel air ducts, the parallel air ducts are also provided with electric heating elements, the outlet of the air inlet pipe is provided with a turbulent air nozzle corresponding to the parallel air ducts one by one, the air inlet pipe and the air outlet pipe are both connected to the inner cavity of the shell and the air outlet pipe is provided with a fan.

2. A heat storage energy-saving tubular sterilizer according to claim 1, characterized in that: An air distribution hood is arranged at the outlet of the air inlet pipe, and the turbulent air nozzle is mounted on the air distribution hood.

3. A heat storage energy-saving tubular sterilizer according to claim 2, characterized in that: The turbulent air nozzle comprises an air nozzle shell, a guide block, a spoiler block and a swirl blade. The air nozzle shell comprises a head section, a tapered section and a tail section. The guide block comprises two symmetrically arranged cones, wherein the outer circumferential surface of one cone is parallel to the inner side of the tapered section. The two ends of the spoiler block are respectively fixedly connected to the guide block and the tapered section. There are multiple spoiler blocks evenly distributed circumferentially along the cross-section of the tapered section. The cross-section of the spoiler block is an isosceles trapezoid and the longer side of the parallel sides of the isosceles trapezoid faces the incoming wind direction. The swirl blade is located in the tail section. The swirl blade comprises a central column and blades evenly distributed circumferentially on the circumferential surface of the central column, and the distal end of the blade is fixedly connected to the inner side of the tail section.

4. The heat storage energy-saving tubular sterilizer according to claim 1, characterized in that: The electric heating element is an electric heating tube.

5. The heat storage energy-saving tubular sterilizer according to claim 4, characterized in that: A plurality of flow-guiding sheds are evenly distributed along the axial direction on the electric heating tubes in the parallel air ducts.

6. The heat storage energy-saving tubular sterilizer according to claim 1, characterized in that: Trumpet-shaped air guide covers are respectively arranged on the left and right sides of the inner cavity of the shell, and the air inlet pipe and the air outlet pipe are respectively connected to an air guide cover.

7. A heat storage energy-saving tubular sterilizer according to any one of claims 1 to 6, characterized in that: A temporary pipeline is also provided between the inner tube and the outer tube, a water bucket is provided on the temporary pipeline, valves are provided on the temporary pipelines at the outlet and inlet sides of the water bucket respectively, and a metering pump, A temperature probe and two valves, the two valves on the inner pipe are respectively located on the upstream and downstream sides of the interface between the temporary pipeline and the inner pipe, the outer pipe is also provided with a valve and a temperature probe, and the valve on the outer pipe is arranged close to the material tank.

8. The heat storage energy-saving tubular sterilizer according to claim 7, characterized in that: The sterilization section is provided with a safety pressure relief valve, two pressure gauges and two temperature probes. The two pressure gauges are respectively located at the inlet side and the outlet side of the sterilization section, and the two temperature probes are also respectively located at the inlet side and the outlet side of the sterilization section.

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