Ultrahigh-pressure sterilization equipment and sterilization method for fruit juice containing pulp

Abstract

The invention discloses ultrahigh-pressure sterilization equipment and a sterilization method of fruit juice containing pulp, and relates to the field of food sterilization. The ultrahigh-pressure sterilization equipment comprises a sterilization tank, a water injection pipe and a water drainage pipe, the water injection pipe and the water drainage pipe are fixedly communicated with the sterilization tank, an electromagnetic valve is arranged on the water drainage pipe, and the ultrahigh-pressure sterilization equipment further comprises a sealing cover connected to the sterilization tank; the bearing cylinder is rotationally connected to the sealing cover; when ultrahigh-pressure low-temperature sterilization is carried out on fruit juice containing pulp in flexible packaging plastic bottles, gaps are formed between the flexible packaging plastic bottles placed in the bearing cylinder, so that the fruit juice containing pulp in the flexible packaging plastic bottles can uniformly bear pressure to be sterilized, and the sterilization effect on the fruit juice containing pulp is improved; and after ultrahigh-pressure low-temperature sterilization of fruit juice containing pulp is completed, water remaining on the surface of the flexible package plastic bottle can be effectively removed, and the working efficiency of subsequent label pasting is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of food sterilization, and in particular relates to ultra-high pressure sterilization equipment and a method for sterilizing fruit juice containing pulp. Background Art

[0002] HPP ultra-high pressure technology is to place packaged food under a static liquid pressure of 100-600MPa for a certain period of time, thereby destroying enzymes, sterilizing, and improving material structure and properties. Its sterilization mechanism is to change the protein and enzyme structure of microbial cells, inhibit enzyme activity, and kill a large number of pathogenic bacteria and spoilage bacteria in juice, while the sensory and nutritional value of food will not be affected. Therefore, HPP ultra-high pressure technology is widely used in the field of juice.

[0003] The existing HPP ultra-high pressure sterilization equipment, when sterilizing packaged juice containing pulp, is in a stationary state inside the sterilization equipment, so that the soft-packaged plastic bottles used to package the juice containing pulp are easily piled up, resulting in different pressure loads on the juice inside the soft-packaged plastic bottles, thereby reducing the sterilization effect of the juice. In view of this, the present invention is specially proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an ultra-high pressure sterilization device and a method for sterilizing fruit juice containing pulp that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] The ultra-high pressure sterilization equipment comprises a sterilization tank and a water injection pipe and a drainage pipe fixedly connected to the sterilization tank, wherein the drainage pipe is provided with a solenoid valve, and further comprises: a sealing cover connected to the sterilization tank; a supporting tube rotatably connected to the sealing cover, wherein the supporting tube is provided with a through hole connected to the sterilization tank, and one end of the supporting tube is detachably connected with a cover plate; a booster pump fixedly mounted on the sterilization tank; an air supply pipe fixedly connected to the output end of the booster pump, wherein one end of the air supply pipe passing through the sealing cover is located in the supporting tube; a pressure relief pipe fixedly connected to the sterilization tank, wherein a pressure relief valve is provided on the pressure relief pipe.

[0007] Preferably, the end of the gas delivery pipe located in the supporting tube is in a closed configuration, and a plurality of gas injection holes are equidistantly provided on the circumference of the end of the gas delivery pipe located in the supporting tube.

[0008] In order to drive the sealing cover to move so as to open or close the sterilization tank, preferably, a hydraulic telescopic rod is fixedly connected to the sterilization tank, and the sealing cover is fixedly connected to the output end of the hydraulic telescopic rod.

[0009] In order to drive the bearing cylinder to rotate, preferably, a motor is fixedly mounted on the sterilization tank, the motor is used to drive the bearing cylinder to rotate, and the output end of the motor is detachably connected to the cover plate.

[0010] Furthermore, the output end of the motor is fixedly connected with a plug-in block, a limiting sleeve is fixed on the cover plate, the plug-in block is plugged into the limiting sleeve, a limiting block is fixedly connected to the plug-in block, a limiting slot is provided in the limiting sleeve, and the limiting block is plugged into the limiting slot.

[0011] In order to facilitate installation or removal of the cover plate, the cover plate is further threadedly connected to an end of the bearing tube away from the sealing cover.

[0012] In order to increase the sealing performance of the connection between the sealing cover and the sterilization tank, it further includes a fixing ring integrally formed with the sealing cover, the supporting tube is rotatably connected to the fixing ring, a sealing ring is provided on the fixing ring, and the sealing ring fits against the inner wall of the sterilization tank.

[0013] In order to allow gaps to exist between multiple bottles of juice placed in the supporting tube, further, multiple groups of mounting shells are equidistantly arranged in a spiral pattern in the supporting tube, and two mounting shells are symmetrically arranged in each group. High-pressure resistant airbags are arranged in both mounting shells, and the two high-pressure resistant airbags in each group are connected by an elastic drawstring.

[0014] In order to increase the sealing performance of the connection between the sealing cover and the sterilization tank, further, a wrapping airbag is arranged around the fixing ring, a sealing groove used in conjunction with the wrapping airbag is provided on the inner wall of the sterilization tank, a ring-shaped air delivery cavity is provided in the supporting tube near the mounting shell, the high-pressure resistant airbag is connected to the air delivery cavity through a catheter 1, a ring-shaped air delivery groove is provided in the fixing ring, a rotating ring for closing the air delivery groove is rotatably connected to the fixing ring, the air delivery cavity is fixedly connected with a catheter 2, the catheter 2 passes through one end of the rotating ring and is connected to the air delivery groove, and the wrapping airbag is connected to the air delivery groove through a pipeline.

[0015] The method for sterilizing fruit juice containing pulp comprises the following steps:

[0016] Step 1: First, fill the juice containing the pulp into a soft-packaged plastic bottle so as to perform ultra-high pressure sterilization on it;

[0017] Step 2: Place the juice soft-packaged plastic bottle filled with pulp into the carrying tube, and then push the carrying tube into the sterilization tank;

[0018] Step 3: Inject water into the sterilization tank through the water injection pipe to increase the pressure inside the sterilization tank, and when the pressure inside the sterilization tank reaches a high pressure state, stop injecting water;

[0019] Step 4: Continue to increase the pressure inside the sterilization tank through the booster pump, so that the pressure inside the sterilization tank reaches the required ultra-high pressure state, thereby ultra-high pressure and low temperature sterilization of the juice containing pulp;

[0020] Step 5: The gas continuously pressurized into the sterilization tank can impact the water in the sterilization tank to generate flow, thereby creating gaps between the soft-packaged plastic bottles placed in the supporting cylinder, thereby ensuring that the juice containing pulp in the soft-packaged plastic bottles can evenly withstand the pressure for sterilization;

[0021] Step 6: After the ultra-high pressure and low temperature sterilization of the fruit juice is completed, the solenoid valve on the drain pipe is opened to release the pressure, and then the flexible plastic bottle can be rolled in the supporting cylinder by the rotating supporting cylinder, thereby shaking off the residual water on the surface of the flexible plastic bottle;

[0022] Step 7: After the water on the surface of the soft-packaged plastic bottle is removed, the carrier tube is removed from the sterilization tank, and the sterilized soft-packaged plastic bottle containing the pulp and juice can be taken out.

[0023] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0024] The present invention, when ultra-high pressure and low temperature sterilization is performed on the fruit juice containing pulp in the soft-package plastic bottle, the gas pressurized in the sterilization tank impacts the water to generate flow, thereby making a gap between the soft-package plastic bottles placed in the supporting cylinder, thereby ensuring that the fruit juice containing pulp in the soft-package plastic bottle can be sterilized evenly under pressure, thereby improving the sterilization effect on the fruit juice containing pulp, and after the ultra-high pressure and low temperature sterilization of the fruit juice containing pulp is completed, the water remaining on the surface of the soft-package plastic bottle can be effectively removed, thereby improving the work efficiency of subsequent label pasting;

[0025] By cooperating with the tensioned elastic drawstring by the rotating supporting cylinder, the elastic drawstring can move the soft-packaged plastic bottles when the supporting cylinder rotates, so that the bottles that are stuck together are separated, thereby creating gaps between the soft-packaged plastic bottles placed in the supporting cylinder, thereby ensuring that the juice containing pulp in the soft-packaged plastic bottles can evenly withstand pressure for sterilization, further improving the sterilization effect on the juice containing pulp.

[0026] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In the attached picture:

[0028] Figure 1 It is a cross-sectional view of the sterilization tank and the carrying tube of the present invention;

[0029] Figure 2It is a schematic diagram of the internal structure of the sterilization tank and the carrying cylinder of the present invention;

[0030] Figure 3 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0031] Figure 4 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0032] Figure 5 It is a schematic diagram of the structure of the installation shell, the high-pressure resistant airbag, and the elastic drawstring of the present invention;

[0033] Figure 6 It is a schematic diagram of the expansion of the plug-in block and the limit sleeve of the present invention;

[0034] Figure 7 The present invention Figure 2 A magnified view of part A;

[0035] Figure 8 The present invention Figure 1 Magnified view of part B.

[0036] In the figure: 1. Sterilization tank; 101. Sealing cover; 102. Fixing ring; 103. Sealing ring; 104. Hydraulic telescopic rod; 105. Water injection pipe; 106. Drain pipe; 2. Carrying tube; 201. Cover plate; 202. Limit sleeve; 203. Plug-in block; 204. Motor; 3. Booster pump; 301. Air pipe; 302. Jet hole; 303. Pressure relief pipe; 4. Mounting shell; 401. High-pressure airbag; 402. Elastic pull rope; 403. Air delivery cavity; 404. Catheter 1; 405. Air delivery trough; 406. Rotating ring; 407. Catheter 2; 408. Wrapped airbag; 409. Pipeline. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0038] Embodiment 1:

[0039] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4, an ultra-high pressure sterilization equipment, comprising a sterilization tank 1 and a water injection pipe 105 and a drainage pipe 106 fixedly connected to the sterilization tank 1, wherein the drainage pipe 106 is provided with a solenoid valve, and also comprising: a sealing cover 101 connected to the sterilization tank 1; a bearing tube 2, rotatably connected to the sealing cover 101, wherein the bearing tube 2 is provided with a through hole connected to the sterilization tank 1, and one end of the bearing tube 2 is detachably connected with a cover plate 201; a booster pump 3, fixedly installed on the sterilization tank 1; an air supply pipe 301, fixedly connected to the output end of the booster pump 3, wherein one end of the air supply pipe 301 passing through the sealing cover 101 is located in the bearing tube 2; a pressure relief pipe 303, fixedly connected to the sterilization tank 1, wherein the pressure relief pipe 303 is provided with a pressure relief valve.

[0040] One end of the air delivery pipe 301 located in the supporting tube 2 is closed, and a plurality of air injection holes 302 are equidistantly provided around the circumference of the one end of the air delivery pipe 301 located in the supporting tube 2 .

[0041] A hydraulic telescopic rod 104 is fixedly connected to the sterilization tank 1 , and the sealing cover 101 is fixedly connected to the output end of the hydraulic telescopic rod 104 .

[0042] The cover plate 201 is threadedly connected to an end of the carrier tube 2 away from the sealing cover 101 .

[0043] When in use, first place the filled soft-packaged plastic bottle of juice containing pulp in the supporting tube 2, and then install the cover plate 201 on the supporting tube 2 by threaded connection to seal the supporting tube 2 to prevent the soft-packaged plastic bottles placed in the supporting tube 2 from scattering in the sterilization tank 1 during the sterilization process, then start the hydraulic telescopic rod 104, the hydraulic telescopic rod 104 pushes the sealing cover 101 to drive the supporting tube 2 to move into the sterilization tank 1 until the sealing cover 101 fits with one end of the sterilization tank 1 to seal the sterilization tank 1, and then water is injected into the sterilization tank 1 through the water injection pipe 105 to increase the pressure inside the sterilization tank 1, and when the internal pressure of the sterilization tank 1 reaches a high pressure state, the water injection can be stopped, and a one-way valve is provided on the water injection pipe 105. At this time, the booster pump 3 is turned on, and the booster pump 3 absorbs external gas and transports it into the gas transmission In the tube 301, the gas is then ejected through the jet hole 302, causing it to continue to be pressurized inside the sterilization tank 1, thereby causing the internal pressure of the sterilization tank 1 to reach the required ultra-high pressure state, thereby performing ultra-high pressure and low temperature sterilization on the juice containing pulp in the soft-packaged plastic bottle. When the air pressure continuously pressurized into the sterilization tank 1 is greater than the pressure relief value set by the pressure relief valve on the pressure relief pipe 303, the pressure relief valve automatically opens to relieve the pressure, thereby maintaining the pressure inside the sterilization tank 1 constant, avoiding safety hazards caused by excessive pressure inside the sterilization tank 1. At the same time, when the gas transported into the gas pipe 301 is ejected through the jet hole 302, it can impact the water in the sterilization tank 1 to produce flow, thereby creating gaps between the soft-packaged plastic bottles placed in the supporting tube 2, thereby ensuring that the juice containing pulp in the soft-packaged plastic bottle can evenly withstand the pressure for sterilization, thereby improving the sterilization effect on the juice containing pulp.

[0044] Embodiment 2:

[0045] Reference Figure 1 , Figure 2 , Figure 6 , an ultra-high pressure sterilization device, which is basically the same as Example 1, and further, a motor 204 is fixedly installed on the sterilization tank 1, and the motor 204 is used to drive the supporting cylinder 2 to rotate, and the output end of the motor 204 is detachably connected to the cover plate 201.

[0046] The output end of the motor 204 is fixedly connected with a plug-in block 203, a limiting sleeve 202 is fixed on the cover plate 201, the plug-in block 203 is plugged into the limiting sleeve 202, a limiting block is fixedly connected to the plug-in block 203, a limiting groove is provided in the limiting sleeve 202, and the limiting block is plugged into the limiting groove.

[0047] Based on Example 1, when the sealing cover 101 is fitted with one end of the sterilizing tank 1, the plug-in block 203 is synchronously plugged into the limiting sleeve 202. Therefore, when the motor 204 drives the plug-in block 203 to rotate, the plug-in block 203 can drive the limiting sleeve 202 to rotate synchronously under the cooperation of the limiting block and the limiting groove;

[0048] When ultra-high pressure and low temperature sterilization is performed on the fruit juice containing pulp in the soft-packaged plastic bottle, the motor 204 is started, and the motor 204 drives the plug-in block 203 to drive the limiting sleeve 202 to rotate. At the same time, the limiting sleeve 202 drives the cover plate 201 to drive the supporting tube 2 to rotate, so that when the supporting tube 2 rotates, the soft-packaged plastic bottle can roll in the supporting tube 2, thereby preventing the soft-packaged plastic bottle from settling and accumulating in the supporting tube 2, resulting in different pressure loads on the fruit juice containing pulp in the soft-packaged plastic bottle, affecting the ultra-high pressure and low temperature sterilization effect of the fruit juice containing pulp. At the same time, when the supporting tube 2 rotates, it can also make the water in the sterilization tank 1 flow better, effectively preventing the soft-packaged plastic bottle from settling and accumulating in the supporting tube 2, thereby further improving the sterilization effect of the fruit juice containing pulp.

[0049] Embodiment 3:

[0050] Reference Figure 2 , Figure 7 , Figure 8 , an ultra-high pressure sterilization device, which is basically the same as Example 1, and further includes a fixing ring 102 integrally formed with the sealing cover 101, the carrying cylinder 2 is rotatably connected to the fixing ring 102, and a sealing ring 103 is provided on the fixing ring 102, and the sealing ring 103 is in contact with the inner wall of the sterilization tank 1.

[0051] When the sealing cover 101 is in fit with the sterilization tank 1, the fixing ring 102 inserted in the sterilization tank 1 squeezes the sealing ring 103 to fit with the inner wall of the sterilization tank 1, thereby increasing the sealing performance at the connection between the sealing cover 101 and the sterilization tank 1, thereby avoiding insufficient sealing performance at the connection between the sterilization tank 1 and the sealing cover 101, resulting in unstable internal pressure of the sterilization tank 1 and affecting the ultra-high pressure and low temperature sterilization effect on the fruit pulp and juice.

[0052] Embodiment 4:

[0053] Reference Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8 , an ultra-high pressure sterilization device, which is basically the same as Example 1, and further, a plurality of groups of mounting shells 4 are arranged in a spiral and equidistant manner in the carrier tube 2, and each group of mounting shells 4 is symmetrically arranged with two, and high-pressure resistant airbags 401 are arranged in the two mounting shells 4, and each group of two high-pressure resistant airbags 401 are connected by an elastic drawstring 402.

[0054] A wrapping airbag 408 is arranged around the fixed ring 102, a sealing groove for use with the wrapping airbag 408 is provided on the inner wall of the sterilization tank 1, a ring-shaped air delivery cavity 403 is provided in the position near the mounting shell 4 in the supporting tube 2, the high-pressure airbag 401 is connected with the air delivery cavity 403 through a conduit 1 404, a ring-shaped air delivery groove 405 is provided in the fixed ring 102, a rotating ring 406 for closing the air delivery groove 405 is rotatably connected to the fixed ring 102, the air delivery cavity 403 is fixedly connected with a conduit 2 407, the conduit 2 407 passes through one end of the rotating ring 406 and is connected with the air delivery groove 405, and the wrapping airbag 408 is connected with the air delivery groove 405 through a pipe 409.

[0055] When ultra-high pressure and low temperature sterilization is performed on the fruit juice containing pulp in the soft-packaged plastic bottle, the high pressure resistant airbag 401 is deformed under pressure under the ultra-high pressure environment inside the sterilization tank 1. At this time, the gas in the high pressure resistant airbag 401 is transported into the gas delivery cavity 403 through the conduit 1 404, and then transported into the gas delivery groove 405 through the conduit 2 407. Finally, the gas is filled into the wrapped airbag 408 through the pipeline 409, so that the wrapped airbag 408 expands and fits tightly with the sealing groove, further increasing the sealing performance of the connection between the sealing cover 101 and the sterilization tank 1, thereby improving the sealing performance of the sterilization tank 1, ensuring that the ultra-high pressure state is maintained inside the sterilization tank 1, and improving the ultra-high pressure and low temperature sterilization effect of the fruit juice containing pulp;

[0056] At the same time, when the high-pressure resistant airbag 401 is deformed under pressure in the ultra-high pressure environment inside the sterilization tank 1, the elastic drawstring 402 can be tensioned, so that when the supporting cylinder 2 rotates, the elastic drawstring 402 can move the soft-packaged plastic bottles, so that the bottles that are stuck together are separated, and then there is a gap between the soft-packaged plastic bottles placed in the supporting cylinder 2, so as to ensure that the juice containing pulp in the soft-packaged plastic bottles can be evenly subjected to pressure for sterilization, and further improve the sterilization effect of the juice containing pulp;

[0057] After completing the ultra-high pressure and low temperature sterilization of the fruit juice, open the solenoid valve on the drain pipe 106 to release the pressure, and the water can be discharged from the sterilization tank 1 through the drain pipe 106. When the water in the sterilization tank 1 is completely discharged, the gas filled in the wrapped airbag 408 can flow back into the high pressure resistant airbag 401 through the pipeline 409, the gas delivery groove 405, the second conduit 407, the gas delivery cavity 403, and the first conduit 404 in sequence, so that the high pressure resistant airbag 401 can be expanded again. At this time, the elastic pull rope 402 is relaxed to restore its elasticity, and then the motor 204 is started, and the motor 204 drives the supporting cylinder 2 to rotate, so that the soft-packaged plastic bottle can roll in the supporting cylinder 2, and then the soft-packaged plastic bottle can be rolled in the supporting cylinder 2. The water remaining on the bottle surface is shaken off, and then the booster pump 3 is started. The booster pump 3 absorbs external gas and transports it into the gas pipe 301. Then the gas is ejected through the jet hole 302, so that the gas passed into the sterilization tank 1 helps to remove the moisture remaining on the surface of the soft-package plastic bottle. Then the moisture removed from the surface of the soft-package plastic bottle can be discharged from the sterilization tank 1 through the drain pipe 106 along with the gas. At the same time, when the supporting cylinder 2 is rotating, the tumbling soft-package plastic bottle can be better tumbled in the supporting cylinder 2 under the elastic pulling of the elastic pull rope 402, thereby increasing the contact area between the soft-package plastic bottle and the gas passed into the sterilization tank 1, thereby improving the removal effect of the residual water on the surface of the soft-package plastic bottle;

[0058] After the moisture on the surface of the soft-packaged plastic bottle is removed, the hydraulic telescopic rod 104 is started. The hydraulic telescopic rod 104 pushes the sealing cover 101 to drive the supporting tube 2 to move out of the sterilization tank 1. When the supporting tube 2 moves out of the sterilization tank 1, the cover plate 201 used to seal the supporting tube 2 is removed to take out the sterilized soft-packaged plastic bottle containing pulp and juice.

[0059] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. An ultra-high pressure sterilization device, comprising a sterilization tank (1), and a water injection pipe (105) and a drainage pipe (106) fixedly connected to the sterilization tank (1), wherein a solenoid valve is provided on the drainage pipe (106), characterized in that: Also includes: A sealing cover (101) connected to the sterilization tank (1); The bearing cylinder (2) is rotatably connected to the sealing cover (101). The supporting tube (2) is provided with a through hole connected to the sterilizing tank (1), and one end of the supporting tube (2) is detachably connected with a cover plate (201); A booster pump (3) fixedly mounted on the sterilization tank (1); The gas delivery pipe (301) is fixedly connected to the output end of the booster pump (3). Wherein, one end of the gas delivery pipe (301) passes through the sealing cover (101) and is located in the supporting cylinder (2); The pressure relief pipe (303) is fixedly connected to the sterilization tank (1). Wherein, a pressure relief valve is arranged on the pressure relief pipe (303).

2. The ultra-high pressure sterilization equipment according to claim 1, characterized in that: One end of the air delivery pipe (301) located in the support tube (2) is arranged in a closed manner, and one end of the air delivery pipe (301) located in the support tube (2) is provided with a plurality of air injection holes (302) equidistantly arranged around the circumference.

3. The ultra-high pressure sterilization equipment according to claim 1, characterized in that: The sterilization tank (1) is fixedly connected to a hydraulic telescopic rod (104), and the sealing cover (101) is fixedly connected to the output end of the hydraulic telescopic rod (104).

4. The ultra-high pressure sterilization equipment according to claim 1, characterized in that: A motor (204) is fixedly mounted on the sterilization tank (1), and the motor (204) is used to drive the supporting cylinder (2) to rotate. The output end of the motor (204) is detachably connected to the cover plate (201).

5. The ultra-high pressure sterilization equipment according to claim 4, characterized in that: The output end of the motor (204) is fixedly connected with a plug-in block (203); a limiting sleeve (202) is fixed on the cover plate (201); the plug-in block (203) is plugged into the limiting sleeve (202); a limiting block is fixedly connected to the plug-in block (203); a limiting slot is provided in the limiting sleeve (202); and the limiting block is plugged into the limiting slot.

6. The ultra-high pressure sterilization equipment according to claim 4, characterized in that: The cover plate (201) is threadedly connected to an end of the carrier tube (2) away from the sealing cover (101).

7. The ultra-high pressure sterilization equipment according to claim 6, characterized in that: It also includes a fixing ring (102) integrally formed with the sealing cover (101), the supporting tube (2) is rotatably connected to the fixing ring (102), and a sealing ring (103) is provided on the fixing ring (102), and the sealing ring (103) is in contact with the inner wall of the sterilization tank (1).

8. The ultra-high pressure sterilization equipment according to claim 7, characterized in that: A plurality of groups of mounting shells (4) are arranged in a spiral pattern at equal intervals in the bearing tube (2), and each group of the mounting shells (4) is symmetrically arranged with two of them. High-pressure resistant airbags (401) are arranged in both of the two mounting shells (4), and the two high-pressure resistant airbags (401) in each group are connected by an elastic drawstring (402).

9. The ultra-high pressure sterilization equipment according to claim 8, characterized in that: The fixed ring (102) is provided with a wrapping air bag (408) around it, the inner wall of the sterilizing tank (1) is provided with a sealing groove for use with the wrapping air bag (408), a ring-shaped gas delivery cavity (403) is provided in the position near the mounting shell (4) in the bearing tube (2), the high-pressure resistant air bag (401) is connected to the gas delivery cavity (403) through a conduit 1 (404), a ring-shaped gas delivery groove (405) is provided in the fixed ring (102), a rotating ring (406) for closing the gas delivery groove (405) is rotatably connected to the fixed ring (102), the gas delivery cavity (403) is fixedly connected with a conduit 2 (407), the conduit 2 (407) passes through one end of the rotating ring (406) and is connected to the gas delivery groove (405), and the wrapping air bag (408) is connected to the gas delivery groove (405) through a pipeline (409).

10. A method for sterilizing fruit juice containing pulp, using the ultra-high pressure sterilization equipment according to claim 1, characterized in that: The following steps are included: Step 1: First, fill the juice containing the pulp into a soft-packaged plastic bottle so as to perform ultra-high pressure sterilization on it; Step 2: placing the juice soft-packaged plastic bottle filled with pulp into the supporting tube (2), and then pushing the supporting tube (2) into the sterilizing tank (1); Step 3: inject water into the sterilizing tank (1) through the water injection pipe (105) to increase the pressure, so that the internal pressure of the sterilizing tank (1) gradually increases. When the internal pressure of the sterilizing tank (1) reaches a high pressure state, the water injection can be stopped; Step 4: Continue to increase the pressure inside the sterilization tank (1) by means of the booster pump (3), so that the pressure inside the sterilization tank (1) reaches the required ultra-high pressure state, thereby performing ultra-high pressure and low temperature sterilization on the juice containing the pulp; Step 5: The gas continuously pressurized into the sterilization tank (1) can impact the water in the sterilization tank (1) to generate flow, thereby creating gaps between the soft-packaged plastic bottles placed in the supporting cylinder (2), thereby ensuring that the juice containing pulp in the soft-packaged plastic bottles can evenly withstand the pressure for sterilization; Step 6: After the ultra-high pressure and low temperature sterilization of the fruit juice is completed, the solenoid valve on the drain pipe (106) is opened to release the pressure, and then the flexible plastic bottle can be rolled in the supporting cylinder (2) by rotating the supporting cylinder (2), thereby shaking off the water remaining on the surface of the flexible plastic bottle; Step 7: After the water on the surface of the soft-packaged plastic bottle is removed, the supporting cylinder (2) is removed from the sterilizing tank (1), and the sterilized soft-packaged plastic bottle containing the pulp and juice can be taken out.

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