Heating device for UHT sterilization of fruit juice

Abstract

The utility model discloses a heating device for UHT sterilization of fruit juice, and relates to the field of sterilization. A heating device for fruit juice UHT sterilization comprises a sterilization tank and a steam generator, a heating cavity is formed between the inner wall and the outer wall of the sterilization tank, and the output end of the steam generator is fixedly communicated with the heating cavity through a gas conveying pipe; the rotating shaft is rotationally connected into the sterilization tank; according to the fruit juice sterilizing device, high-temperature steam passing through the heat conduction pipe exchanges cold and heat with fruit juice in the sterilizing tank, so that the fruit juice is heated and sterilized, and the heat conduction pipe is arranged in a snake-shaped bending manner, so that the time for the high-temperature steam to pass through the heat conduction pipe is prolonged, and the sterilizing effect on the fruit juice is improved; the high-temperature steam conveyed into the heating cavity is used for continuously heating the fruit juice in the sterilizing tank, so that the sterilizing effect on the fruit juice is further improved, the fruit juice is uniformly heated by stirring the fruit juice, the high-temperature sterilizing quality of the fruit juice is improved, and the sterilizing duration is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of sterilization, and specifically relates to a heating device for UHT sterilization of fruit juice. Background Art

[0002] The production process of fruit juice is: fruit crushing, peeling and pitting separation, uniform stirring, heating and sterilization, cooling, freezing, thawing, dilution and stirring, filtering and slag removal, and canning.

[0003] At present, when producing fruit juice beverages, a UHT sterilizer is required to kill microorganisms in the fruit juice beverages to ensure that the beverages will not deteriorate within the shelf life, so as to meet the requirements of commercial sterility, thereby extending the shelf life of the beverages;

[0004] However, in the existing UHT sterilizers at present, when heating and sterilizing fruit juice, since the fruit juice is stationary in the tank body of the sterilizer, the fruit juice cannot be evenly heated in the tank body, which reduces the quality of high-temperature sterilization of the fruit juice while also reducing the efficiency of high-temperature sterilization of the fruit juice. In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a heating device for UHT sterilization of fruit juice that can overcome the above problems or at least partially solve the above problems.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0007] A heating device for UHT sterilization of fruit juice includes a sterilization tank and a steam generator. Among them, a heating cavity is provided between the inner and outer walls of the sterilization tank, and the output end of the steam generator is fixedly connected to the heating cavity through an air delivery pipe; a rotating shaft is rotatably connected inside the sterilization tank. Among them, air delivery cavities and exhaust cavities are respectively provided at both ends of the rotating shaft, and a plurality of heat conduction pipes communicating with the air delivery cavity and the exhaust cavity are equidistantly arranged on the rotating shaft; a pressure relief pipe is fixedly connected to the heating cavity. Among them, the end of the pressure relief pipe far away from the heating cavity is connected to the air delivery cavity through a rotary joint, the rotary joint is arranged at one end of the rotating shaft, and a pressure relief valve is arranged on the pressure relief pipe.

[0008] Preferably, in order to extend the time for high-temperature steam to pass through the heat conduction pipes, the heat conduction pipes are arranged in a serpentine bending manner.

[0009] Preferably, in order to drive the rotation of the rotating shaft, it further includes a motor connected to the sterilization tank. A gear two is fixedly installed on the output end of the motor, and a gear one is fixedly installed on the end of the rotating shaft passing through the upper end of the sterilization tank. The gear one is meshed with the gear two.

[0010] In order to improve the safety of the device when in use, preferably, a protective shell is detachably connected to the sterilization tank, and the protective shell covers the gear one and the gear two.

[0011] In order to facilitate the installation and disassembly of the protective shell, the protective shell is further detachably connected to the sterilization tank through a plurality of fixing bolts.

[0012] In order to facilitate the discharge of the sterilized juice from the sterilization tank, preferably, the bottom of the sterilization tank is fixedly connected with a discharge pipe, and a solenoid valve is provided on the discharge pipe.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model achieves heating and sterilization of the juice by exchanging heat with the high-temperature steam passing through the heat-conducting pipe and the juice in the sterilization tank, and the serpentine bending arrangement of the heat-conducting pipe increases the time for the high-temperature steam to pass through the heat-conducting pipe, thereby improving the sterilization effect on the juice, and the high-temperature steam delivered into the heating chamber continuously heats the juice in the sterilization tank, further improving the sterilization effect on the juice, and stirring the juice to make it evenly heated, thereby improving the quality of the high-temperature sterilization of the juice and shortening the sterilization time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional view of the sterilizing tank, the heat conducting pipe and the rotating shaft of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0017] Figure 3 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0018] Figure 4 It is a schematic diagram of the heat conduction pipe structure of the utility model;

[0019] Figure 5 The utility model Figure 1 Enlarged view of part A.

[0020] In the figure: 1. Sterilization tank; 101. Discharge pipe; 102. Heating chamber; 2. Steam generator; 201. Gas pipe; 3. Rotating shaft; 301. Gear 1; 302. Motor; 303. Gear 2; 304. Heat transfer pipe; 4. Gas chamber; 401. Rotating joint; 402. Pressure relief pipe; 403. Exhaust chamber; 5. Protective shell; 501. Fixing bolts. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will describe the technical solutions in the embodiments clearly and completely in conjunction with the accompanying drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not intended to limit the scope of the present utility model.

[0022] Embodiment 1:

[0023] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 A heating device for UHT sterilization of fruit juice, comprising a sterilization tank 1 and a steam generator 2. Among them, a heating chamber 102 is provided between the inner and outer walls of the sterilization tank 1, and the output end of the steam generator 2 is fixedly communicated with the heating chamber 102 through an air delivery pipe 201; a rotating shaft 3 is rotatably connected inside the sterilization tank 1. Among them, air delivery chambers 4 and exhaust chambers 403 are respectively provided at both ends of the rotating shaft 3, and a plurality of heat conduction pipes 304 communicating with the air delivery chambers 4 and the exhaust chambers 403 are equidistantly arranged on the rotating shaft 3; a pressure relief pipe 402 is fixedly communicated with the heating chamber 102. Among them, one end of the pressure relief pipe 402 away from the heating chamber 102 is communicated with the air delivery chamber 4 through a rotary joint 401, and the rotary joint 401 is arranged at one end of the rotating shaft 3, and a pressure relief valve is arranged on the pressure relief pipe 402.

[0024] The heat conduction pipe 304 is arranged in a serpentine bend.

[0025] During use, the fruit juice to be sterilized is filled into the sterilization tank 1 through a feeding port provided at the top of the sterilization tank 1. Subsequently, the steam generator 2 is started, and the steam generated by the steam generator 2 is transported into the heating chamber 102 through the air delivery pipe 201. At this time, the internal pressure of the heating chamber 102 gradually increases. When the internal pressure of the heating chamber 102 is greater than the pressure relief value set by the pressure relief valve on the pressure relief pipe 402, the pressure relief valve automatically opens for pressure relief, so that the excess high-temperature steam filled into the heating chamber 102 is transported into the air delivery chamber 4 through the pressure relief pipe 402, and then the high-temperature steam is transported into the exhaust chamber 403 through the heat conduction pipe 304 and discharged to the outside. At this time, the high-temperature steam passing through the heat conduction pipe 304 exchanges heat with the cold and hot of the fruit juice in the sterilization tank 1, so as to achieve heating and sterilization of the fruit juice. At the same time, by arranging the heat conduction pipe 304 in a serpentine bend, the time for the high-temperature steam to pass through the heat conduction pipe 304 can be increased, thereby improving the sterilization effect on the fruit juice. At the same time, the fruit juice in the sterilization tank 1 is continuously heated by the high-temperature steam transported into the heating chamber 102, further improving the sterilization effect on the fruit juice.

[0026] Embodiment 2:

[0027] Referring to Figure 1 、 Figure 4, A heating device for UHT sterilization of fruit juice, which is basically the same as that in Embodiment 1. Furthermore, it further includes a motor 302 connected to the sterilization tank 1. A second gear 303 is fixedly installed on the output end of the motor 302. One end of the rotating shaft 3 passing through the upper end of the sterilization tank 1 is fixedly installed with a first gear 301. The first gear 301 is meshed and connected with the second gear 303.

[0028] When heating and sterilizing the fruit juice, start the motor 302. The motor 302 drives the rotating shaft 3 to rotate. The rotating shaft 3 drives the heat conduction tube 304 to rotate synchronously, so that the rotating heat conduction tube 304 stirs the fruit juice, thereby making the fruit juice evenly heated, so as to improve the quality of high-temperature sterilization of the fruit juice and shorten the sterilization time.

[0029] Embodiment 3:

[0030] Refer to Figure 2 、 Figure 3 , A heating device for UHT sterilization of fruit juice, which is basically the same as that in Embodiment 1. Furthermore, a protective shell 5 is detachably connected to the sterilization tank 1. The protective shell 5 covers the first gear 301 and the second gear 303; through the protective shell 5 covering the first gear 301 and the second gear 303, the safety of the device during use is improved.

[0031] The protective shell 5 is detachably connected to the sterilization tank 1 through a plurality of fixing bolts 501; the fixing bolts 501 are used for limiting and fixing the protective shell 5, so that when it is necessary to disassemble the protective shell 5, it can be easily disassembled, so as to facilitate the staff to maintain the first gear 301 and the second gear 303.

[0032] It should be added that the pressure relief pipe 402 is a stretchable and shrinkable hose, so the pressure relief pipe 402 will not interfere with the disassembly of the protective shell 5.

[0033] Embodiment 4:

[0034] Refer to Figure 1 、 Figure 2 , A heating device for UHT sterilization of fruit juice, which is basically the same as that in Embodiment 1. Furthermore, a discharge pipe 101 is fixedly connected to the bottom of the sterilization tank 1. A solenoid valve is arranged on the discharge pipe 101; after sterilization is completed, by opening the solenoid valve on the discharge pipe 101, the fruit juice can be discharged from the sterilization tank 1 through the discharge pipe 101, so as to facilitate the discharge of the sterilized fruit juice from the sterilization tank 1.

[0035] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention.

Claims

1. A heating device for UHT sterilization of juice, characterized in that: It comprises a sterilizing tank (1), a steam generator (2), A heating chamber (102) is provided between the inner and outer walls of the sterilization tank (1), and the output end of the steam generator (2) is fixedly connected to the heating chamber (102) via a gas pipe (201); The rotating shaft (3) is rotatably connected in the sterilizing tank (1). Wherein, an air delivery cavity (4) and an exhaust cavity (403) are respectively provided at both ends of the rotating shaft (3), and a plurality of heat conduction pipes (304) connected to the air delivery cavity (4) and the exhaust cavity (403) are equidistantly arranged on the rotating shaft (3); A pressure relief pipe (402) is fixedly connected to the heating chamber (102). The end of the pressure relief pipe (402) away from the heating chamber (102) is connected to the gas delivery chamber (4) via a rotary joint (401); the rotary joint (401) is arranged on one end of the rotating shaft (3); and a pressure relief valve is arranged on the pressure relief pipe (402).

2. A heating device for UHT sterilization of juice according to claim 1, characterized in that: The heat conducting pipe (304) is arranged in a serpentine shape.

3. A heating device for UHT sterilization of juice according to claim 1, characterized in that: It also includes a motor (302) connected to the sterilization tank (1), a gear 2 (303) being fixedly mounted on the output end of the motor (302), and a gear 1 (301) being fixedly mounted on one end of the rotating shaft (3) that passes through the upper end of the sterilization tank (1), and the gear 1 (301) being meshingly connected with the gear 2 (303).

4. A heating device for UHT sterilization of juice according to claim 1, characterized in that: The sterilization tank (1) is detachably connected to a protective shell (5), and the protective shell (5) covers the gear 1 (301) and the gear 2 (303).

5. A heating device for UHT sterilization of juice according to claim 4, characterized in that: The protective shell (5) is detachably connected to the sterilization tank (1) via a plurality of fixing bolts (501).

6. A heating device for UHT sterilization of juice according to claim 1, characterized in that: The bottom of the sterilization tank (1) is fixedly connected to a discharge pipe (101), and a solenoid valve is provided on the discharge pipe (101).

Images