A sterile buffering and conveying device for liquid containing fruit particles

Abstract

The invention discloses an aseptic buffering and conveying device for fruit-grain-containing liquid, comprising: an aseptic buffer tank, a material output pipe and a material input pipe connected to the aseptic buffer tank, the bottom of the aseptic buffer tank being conical, the material output pipe being connected to the lowest position of the bottom of the aseptic buffer tank, a first aseptic diaphragm flow regulating valve being arranged on the material output pipe, an aseptic stirring device being arranged in the aseptic buffer tank, an aseptic gas input pipe being connected to the aseptic buffer tank, a feed valve group being arranged at the input end of the material input pipe, a feed pipe and a return pipe being connected to the feed valve group, a second aseptic control valve being connected to a first steam input pipe, the first steam input pipe being connected to a shielding steam conveying pipe and a sterilizing steam conveying pipe respectively, a third aseptic control valve being connected to the material input pipe and a washing liquid conveying pipe, and a fourth aseptic control valve being connected to a first discharge pipe. The invention has the advantages of realizing aseptic buffering and conveying of fruit-grain-containing liquid, good uniformity and low pulp damage rate.

Description

Technical Field

[0001] The invention relates to the technical field of aseptic fruit-grain beverage filling production equipment, and in particular to a device for aseptic buffering and conveying of a fruit-grain-containing liquid. Background Art

[0002] After the liquid containing fruit particles is sterilized at ultra-high temperature, it needs to be aseptically buffered and transported. The structure of a traditional aseptic buffering and conveying device includes: a buffer tank, a liquid conveying pipe is provided on the buffer tank, and a rotor pump is provided on the liquid conveying pipe. The traditional aseptic buffering and conveying device has the following technical problems: First, the fruit particles will be stratified with the liquid and deposited at the bottom of the tank, which not only easily causes the fruit particles to remain at the bottom of the tank and cannot be thoroughly cleaned and sterilized, but also causes the output liquid to have poor uniformity, so that the liquid cannot be transported stably, continuously and evenly. Second, an impeller is provided in the inner cavity of the rotor pump to perform rotating motion, and the structure is complex. To meet the requirements of aseptic hygiene, the mechanical seal of the rotor pump needs to be introduced with shielding steam. The aseptic rotor pump is expensive and has high maintenance costs. Summary of the invention

[0003] The purpose of the present invention is to provide a sterile buffering and conveying device for a liquid containing fruit particles, which can output the liquid containing fruit particles uniformly and stably.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an aseptic buffering and conveying device containing fruit particle liquid, comprising: an aseptic buffering tank, a material output pipe and a material input pipe are connected to the aseptic buffering tank, the bottom of the aseptic buffering tank is a cone with a diameter gradually decreasing from top to bottom, the material output pipe is connected to the lowest position of the bottom of the aseptic buffering tank, a first aseptic diaphragm flow regulating valve is arranged on the material output pipe, an aseptic stirring device is arranged in the aseptic buffering tank, a aseptic gas input pipe is connected to the aseptic buffering tank, and an input end of the material input pipe is provided with A feed valve group, the feed valve group includes: a first aseptic control valve, a second aseptic control valve, a third aseptic control valve, and a fourth aseptic control valve connected to the same valve chamber, the first aseptic control valve is connected to a feed pipe and a return pipe, the second aseptic control valve is connected to a first steam input pipe, the first steam input pipe is connected to a shielding steam delivery pipe and a sterilizing steam delivery pipe respectively, the third aseptic control valve is connected to a material input pipe and a washing liquid delivery pipe respectively, and the fourth aseptic control valve is connected to a first discharge pipe with a discharge control valve and a first temperature sensor.

[0005] Furthermore, in the aforementioned aseptic buffering and conveying device for fruit particle-containing liquid, a cooling jacket is provided on the side wall and the outer side of the bottom of the aseptic buffering tank, and a cooling medium input pipe and a cooling medium output pipe are connected to the cooling jacket.

[0006] Furthermore, the aforementioned aseptic buffering and conveying device for fruit particle liquid, wherein the aseptic stirring device is an aseptic vertical stirrer, the aseptic vertical stirrer comprises: a stirring blade, the stirring blade is arranged on a stirring shaft, the stirring shaft extends upward from the aseptic buffering tank and is connected to the stirring motor, the connection between the stirring shaft and the stirring motor is located in a shielding chamber, the shielding chamber is provided with a motor shielding input pipe and a motor shielding output pipe with a third temperature sensor, the motor shielding input pipe is connected to the cooled medium output end of the heat exchanger for cooling, the cooled medium input end of the heat exchanger is respectively connected to the shielding steam conveying pipe and the sterilization steam conveying pipe, the heat exchanger is connected with a heat exchanger cooling water inlet pipe and a heat exchanger cooling water drain pipe.

[0007] Furthermore, in the aforementioned aseptic buffering and conveying device for the fruit particle-containing liquid, a weighing sensor is provided on the aseptic buffering tank.

[0008] Furthermore, in the aforementioned aseptic buffering and conveying device for fruit particle-containing liquid, the first aseptic control valve and the third aseptic control valve are both pneumatic aseptic T-type valves, the second aseptic control valve and the fourth aseptic control valve are both pneumatic aseptic L-type valves, the first aseptic control valve, the second aseptic control valve, the third aseptic control valve and the fourth aseptic control valve are arranged in a cross shape, and the first aseptic control valve is arranged opposite to the third aseptic control valve, and the second aseptic control valve is arranged opposite to the fourth aseptic control valve.

[0009] Furthermore, in the aforementioned aseptic buffering and conveying device for fruit particle-containing liquid, the feed valve group is welded together by a first aseptic control valve, a second aseptic control valve, a third aseptic control valve, a fourth aseptic control valve and a reducing four-way pipe, and the inner cavity of the reducing four-way pipe forms a valve cavity.

[0010] Furthermore, the aforementioned aseptic buffer conveying device for fruit particle liquid is provided with a seventh aseptic control valve at the input end of the washing liquid conveying pipe, the seventh aseptic control valve is connected to the spray pipeline and the sixth control valve, the spray pipeline is connected to the spray ball with a spray hole, the spray ball is arranged at the top of the aseptic buffer tank, the sixth control valve is connected to the fifth control valve through a connecting pipe, the fifth control valve is connected to the washing liquid inlet pipe, the connecting pipe is also connected to a second steam input pipe, the second steam input pipe is respectively connected to the shielding steam conveying pipe and the sterilization steam conveying pipe; the second steam input pipe is provided with a second steam input control valve; the connecting pipe is also provided with a second temperature sensor and a second discharge pipe; the fifth control valve adopts a pneumatic LL-type reversing valve, the sixth control valve adopts a pneumatic L-type reversing valve, and the seventh aseptic control valve is a pneumatic aseptic T-type valve.

[0011] Furthermore, in the aforementioned aseptic buffering and conveying device for fruit particle liquid, a buffer tank pressure sensor is provided on the aseptic buffer tank, a pneumatic regulating valve and a first pressure sensor are provided on the aseptic gas input pipe, a safety valve and an exhaust pipe are also provided on the aseptic gas input pipe, and an exhaust control valve is provided on the exhaust pipe.

[0012] Furthermore, in the aforementioned aseptic buffering and conveying device for fruit particle-containing liquid, a third steam input pipe is arranged on the first discharge pipe, the third steam input pipe is connected to the first steam input pipe, and a third steam input control valve is arranged on the third steam input pipe.

[0013] The advantages of the present invention are: 1. Aseptic buffering and transportation of liquid containing fruit particles is realized. 2. An aseptic stirring device is used to stir the liquid in the aseptic buffer tank, and a weighing sensor is used to monitor the liquid level in the aseptic buffer tank. When the liquid level is high, the stirring speed of the aseptic stirring device is high, and when the liquid level is low, the stirring speed of the aseptic stirring device is low. The stirring speeds of the aseptic stirring device are different at different liquid levels, which can effectively ensure that the fruit particles are evenly distributed while the fruit particles are not damaged, thereby greatly improving the taste and quality of the fruit particle-containing beverage. 3. Back pressure is created in the aseptic buffer tank, and the liquid containing fruit particles in the aseptic buffer tank is discharged outward from the material output pipe through pressure. The flow diameter of the first aseptic diaphragm flow regulating valve on the material output pipe is large. This transportation method can further effectively reduce the pulp breakage rate, thereby further ensuring the quality and taste of the liquid containing fruit particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a sterile buffering and conveying device for fruit particle-containing liquid according to the present invention.

[0015] Figure 2 The present invention is a schematic diagram of a process of using a sterile buffering and conveying device containing fruit particle liquid to clean with washing liquid.

[0016] Figure 3 The present invention is a schematic diagram of a process for steam sterilization of a sterile buffering and conveying device containing fruit particle liquid.

[0017] Figure 4 The present invention is a schematic flow chart of steam shielding of a sterile buffering and conveying device for fruit particle-containing liquid.

[0018] Figure 5 It is a schematic diagram of the flow process of the liquid during production of the aseptic buffering and conveying device for liquid containing fruit particles described in the present invention.

[0019] Figure 6 It is a structural schematic diagram of a feed valve group in a sterile buffering and conveying device for a liquid containing fruit particles according to the present invention. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] like Figure 1 As shown, a sterile buffering and conveying device for a liquid containing fruit particles comprises: a sterile buffer tank 1, to which a material output pipe 11 for outputting the liquid containing fruit particles to the outside and a material input pipe 12 for inputting the liquid containing fruit particles are connected. The bottom of the sterile buffer tank 1 is in a conical shape with a diameter gradually decreasing from top to bottom, and the material output pipe 11 is connected to the lowest position of the bottom of the sterile buffer tank 1. The bottom of the sterile buffer tank 1 is in a conical shape, which can effectively prevent fruit particles from remaining at the bottom of the sterile buffer tank 1, solve the technical problem that there are still fruit particles remaining after the sterile buffer tank 1 is washed, thereby improving the sterility of the sterile buffer tank 1.

[0022] The material output pipe 11 is provided with a first sterile diaphragm flow regulating valve 111 and a first flow meter 112. During the material conveying process, the first sterile diaphragm flow regulating valve 111 and the first flow meter 112 are controlled in linkage to ensure the flow stability during conveying. In this embodiment, the advantages of providing the first sterile diaphragm flow regulating valve 111 on the material output pipe 11 are: 1. The internal structure of the sterile diaphragm flow regulating valve is simple, and it can be fully and comprehensively cleaned with detergent and steam sterilized, which can fully meet the sterile hygienic requirements, and the maintenance parts related to sterility are only diaphragms, which are simple to maintain, thereby effectively ensuring sterility. 2. Compared with other sterile regulating valves, the sterile diaphragm flow regulating valve allows a large flow diameter, so the size of the pulp that can be allowed to pass is large, which can effectively reduce the pulp breakage rate and greatly improve the quality and taste of the fruit-containing beverage.

[0023] In this embodiment, the side wall and the outer side of the bottom of the sterile buffer tank 1 are provided with a cooling jacket 14, and the cooling jacket 14 is connected with a cooling medium input pipe 141 and a cooling medium output pipe 142. The cooling medium in the cooling jacket 14 is usually cooling water. The purpose of providing the cooling jacket 14 is to quickly cool the sterile buffer tank 1 after steam sterilization, so that the sterile buffer tank 1 after steam sterilization is quickly cooled to room temperature, and the temperature in the sterile buffer tank 1 after steam sterilization is too high to affect the fruit-containing liquid, such as taste, color, etc., so as to ensure the quality of the product after filling.

[0024] The aseptic buffer tank 1 is provided with a buffer tank pressure sensor 16. The aseptic buffer tank 1 is also connected with a sterile gas input pipe 13 for conveying sterile compressed gas, and the sterile gas input pipe 13 is provided with a pneumatic regulating valve 131 and a first pressure sensor 132. The sterile gas input pipe 13 is also provided with a safety valve 135 and an exhaust pipe 134, and the exhaust pipe 134 is provided with an exhaust control valve 1341. If the pressure in the aseptic buffer tank 1 is too high, the safety valve 135 will open to release the pressure.

[0025] The sterile buffer tank 1 is provided with a sterile stirring device 2 for stirring the liquid containing fruit particles. The sterile stirring device 2 is a sterile vertical stirrer with low liquid level stirring. The sterile vertical stirrer with low liquid level stirring includes: a stirring blade 21, the stirring blade 21 is arranged on a stirring shaft 22, the stirring shaft 22 extends upward from the sterile buffer tank 1 and is connected to a stirring motor 23. The connection between the stirring shaft 22 and the stirring motor 23 is located in a shielding chamber 24, the shielding chamber 24 is connected to a motor shielding input pipe 241 and a motor shielding output pipe 242, and a third temperature sensor 2421 and a motor shielding steam trap 2422 are arranged on the motor shielding output pipe 242. The motor shielding input pipe 241 is connected to the output end of the cooled medium of the heat exchanger 25 for cooling, and the input end of the cooled medium of the heat exchanger 25 is connected to the shielding steam delivery pipe 3 and the sterilization steam delivery pipe 4 respectively. The heat exchanger 25 is connected to a heat exchanger cooling water inlet pipe 251 and a heat exchanger cooling water outlet pipe 252 , and the cooling medium in the heat exchanger 25 is cooling water.

[0026] A weighing sensor 15 is provided on the sterile buffer tank 1 .

[0027] The aseptic stirring device 2 stirs the liquid containing fruit particles in the aseptic buffer tank 1, which can prevent the fruit particles in the liquid containing fruit particles from settling, thereby greatly improving the state of the material in the aseptic buffer tank 1 always maintaining a uniform distribution of fruit particles. The aseptic vertical stirrer with low liquid level stirring has a gentle shear force, which can effectively prevent the stirring blades 21 from damaging the fruit particles during the stirring process.

[0028] While ensuring the uniformity of the material in the sterile buffer tank 1, it is also necessary to ensure that the fruit particles in the liquid are not destroyed. Therefore, the rotation speed of the sterile stirring device 2 needs to be adjusted according to the liquid level in the sterile buffer tank 1. When the liquid level in the sterile buffer tank 1 decreases, the rotation speed of the sterile stirring device 2 also needs to be reduced accordingly. Therefore, a weighing sensor 15 is set, and its purpose is to: monitor the weight of the sterile buffer tank 1 in real time. The weighing sensor 15 feeds back the detected information to the PLC controller, and the PLC controller calculates the liquid level in the sterile buffer tank 1 by weight. The PLC controller adjusts the rotation speed of the sterile stirring device 2 according to the liquid level, thereby effectively ensuring that the fruit particles are not destroyed at different liquid levels while the material in the sterile buffer tank 1 remains uniform.

[0029] A feed valve group 5 is provided at the input end of the material input pipe 12, and the feed valve group 5 includes: a first aseptic control valve 51, a second aseptic control valve 52, a third aseptic control valve 53, and a fourth aseptic control valve 54 having the same valve cavity 50, wherein the first aseptic control valve 51 is connected to a feed pipe 511 and a return pipe 512; wherein the second aseptic control valve 52 is connected to a first steam input pipe 521, and the first steam input pipe 521 is respectively connected to the shielding steam delivery pipe 3 and the sterilization steam delivery pipe 4; wherein the third aseptic control valve 53 is connected to the material input pipe 12 and the washing liquid delivery pipe 531; wherein the fourth aseptic control valve 54 is connected to a first discharge pipe 541 with a discharge control valve 5411 and a first temperature sensor 5412. The first discharge pipe 541 is also connected to a third steam input pipe 542 , which is connected to the first steam input pipe 521 . A third steam input control valve 5421 is disposed on the third steam input pipe 542 .

[0030] The first sterile control valve 51 and the third sterile control valve 53 are both pneumatic sterile T-type valves. The second sterile control valve 52 and the fourth sterile control valve 54 are both pneumatic sterile L-type valves. The first sterile control valve 51, the second sterile control valve 52, the third sterile control valve 53, and the fourth sterile control valve 54 are arranged in a cross shape around the valve cavity 50, and the first sterile control valve 51 is arranged opposite to the third sterile control valve 53, and the second sterile control valve 52 is arranged opposite to the fourth sterile control valve 54. In this embodiment, Figure 6 As shown, the feed valve group 5 is formed by welding a first sterile control valve 51, a second sterile control valve 52, a third sterile control valve 53, a fourth sterile control valve 54 and a reducing cross-way pipe 55, and the inner cavity of the reducing cross-way pipe 55 forms a valve cavity 50. The feed valve group 5 of this structure has low manufacturing cost and simple control, and can effectively prevent fruit particles from remaining in the valve cavity, thereby greatly reducing the risk of incomplete cleaning with washing liquid.

[0031] The input end of the washing liquid delivery pipe 531 is provided with a seventh aseptic control valve 7, which is connected to a spraying pipeline 71 and a sixth control valve 6, and the spraying pipeline 71 is connected to a spraying ball 72 with a spray hole, and the spraying ball 72 is arranged at the top of the aseptic buffer tank 1. The sixth control valve 6 is connected to the fifth control valve 8 through a connecting pipe 61, and the fifth control valve 8 is connected to the washing liquid inlet pipe 81. The connecting pipe 61 is also connected to a second steam input pipe 9, and the second steam input pipe 9 is respectively connected to the shielding steam delivery pipe 3 and the sterilization steam delivery pipe 4. The second steam input control valve 91 is arranged on the second steam input pipe 9. The connecting pipe 61 is also provided with a second temperature sensor 611 and a second discharge pipe 612.

[0032] The fifth control valve 8 mentioned above adopts a pneumatic LL-type reversing valve, the sixth control valve 6 adopts a pneumatic L-type reversing valve, and the seventh sterile control valve 7 is a pneumatic sterile T-type valve.

[0033] The working principle of a sterile buffering and conveying device containing fruit particle liquid is further introduced below.

[0034] Cleaning in place (CIP) process: Figure 2 As shown, the washing liquid inlet pipe 81 is connected to the external washing liquid supply device. The washing liquid provided by the external washing liquid supply device passes through the washing liquid inlet pipe 81, the fifth control valve 8, the connecting pipe 61, the sixth control valve 6, and the seventh aseptic control valve 7 in sequence, and then is divided into two paths. One path enters the spray ball 72 through the spray pipeline 71, and the spray ball 72 sprays and cleans the sterile buffer tank 1; the other path passes through the washing liquid delivery pipe 531 and the third aseptic control valve 53 in sequence, and enters the sterile buffer tank 1 and the valve cavity 50 respectively, and the washing liquid in the sterile buffer tank 1 is discharged from the material output pipe 11.

[0035] The washing liquid in the valve chamber 50 enters the first discharge pipe 541 and the third steam input pipe 542 between the third steam input control valve 5421 and the first discharge pipe 541. The washing liquid in the valve chamber 50 and the washing liquid in the third steam input pipe 542 between the third steam input control valve 5421 and the first discharge pipe 541 are discharged from the first discharge pipe 541.

[0036] The feed pipe 511 and the return pipe 512 are connected to the instantaneous ultra-high temperature sterilizer, and the washing liquid in the instantaneous ultra-high temperature sterilizer flows out through the return pipe 512 through the first aseptic control valve 51 .

[0037] like Figure 3 As shown in FIG. 1 , the steam sterilization (SIP) process: the sterilization steam is input through the sterilization steam delivery pipe 4. The sterilization steam is filtered clean steam. Figure 3 As shown, the sterilizing steam in the sterilizing steam delivery pipe 4 enters the valve chamber 50 and the third steam input pipe 542 through the first steam input pipe 521 and the second sterile control valve 52. The sterilizing steam in the valve chamber 50 is divided into two paths through the third sterile control valve 53, one path enters the sterile buffer tank 1 through the material input pipe 12, and the other path enters the spray ball 72 after passing through the washing liquid delivery pipe 531, the seventh sterile control valve 7, and the spray pipeline 71. The spray ball 72 sprays and sterilizes the sterile buffer tank 1. The sterilizing steam in the sterile buffer tank 1 is discharged through the material output pipe 11, and the sterilizing steam in the sterile buffer tank 1 also enters the sterile gas input pipe 13.

[0038] The sterilizing steam in the sterilizing steam delivery pipe 4 also enters the connecting pipe 61 through the second steam input pipe 9 , and the condensed water in the connecting pipe 61 is discharged through the second discharge pipe 612 .

[0039] The sterilizing steam in the sterilizing steam delivery pipe 4 also passes through the cooled medium input end of the heat exchanger 25, the motor shielding input pipe 241, the shielding chamber 24, and the motor shielding output pipe 242 in sequence. The condensed water in the motor shielding output pipe 242 is discharged through the motor shielding drain valve 2422.

[0040] Steam sterilization starts when the temperature detected by the first temperature sensor 5412, the second temperature sensor 611, and the third temperature sensor 2421 reaches the preset sterilization temperature. When the sterilization time reaches the set time, the steam sterilization is completed. The above-mentioned steam sterilization realizes the comprehensive and effective sterilization of the pipelines and valves on the pipelines during the sterile buffer transportation process. At the same time, steam sterilization is performed on the locations that may cause bacterial contamination, such as the shielding chamber 24, which effectively ensures the sterility of the sterile buffer transportation device.

[0041] When steam sterilization is completed, the steam shield is opened immediately. Figure 4 As shown, the steam shielding pipeline is distributed as follows: Shielding steam is input from the shielding steam delivery pipe 3.

[0042] The shielding steam in the shielding steam delivery pipe 3 passes through the first steam input pipe 521 , enters the third steam input pipe 542 and the first discharge pipe 541 .

[0043] The shielding steam in the shielding steam delivery pipe 3 enters the connecting pipe 61 through the second steam input pipe 9 , and the condensed water in the connecting pipe 61 is discharged through the second discharge pipe 612 .

[0044] The shielding steam in the shielding steam delivery pipe 3 sequentially passes through the cooling medium input end of the heat exchanger 25, the motor shielding input pipe 241, the shielding chamber 24, and the motor shielding output pipe 242. The condensed water in the motor shielding output pipe 242 is discharged through the motor shielding drain valve 2422.

[0045] The shielded steam pipeline mentioned above enables the entire sterile environment to be maintained and avoids the sterile environment from being destroyed.

[0046] After the steam sterilization is completed, cooling water is introduced into the cooling medium input pipe 141 to quickly cool the sterile buffer tank 1, and the water that has absorbed heat is discharged from the cooling medium output pipe 142.

[0047] like Figure 5As shown, the production process is as follows: the liquid containing fruit particles sterilized by the instantaneous ultra-high temperature sterilizer enters the sterile buffer tank 1 through the feed pipe 511, the valve chamber 50, the third sterile control valve 53, and the material input pipe 12 in sequence. The sterile stirring device 2 stirs the liquid containing fruit particles in the sterile buffer tank 1, so that the fruit particles in the sterile buffer tank 1 are evenly distributed in the liquid. The weighing sensor 15 monitors the quality of the sterile buffer tank 1 in real time, and feeds back the detected information to the PLC controller, and the PLC controller calculates the liquid level in the sterile buffer tank 1 by the quality. The PLC controller adjusts the rotation speed of the sterile stirring device 2 according to the liquid level. When the liquid level in the sterile buffer tank 1 rises, the rotation speed of the sterile stirring device 2 increases accordingly.

[0048] Sterile compressed gas enters the sterile buffer tank 1 through the sterile gas input pipe 13. The sterile compressed gas exerts back pressure on the sterile buffer tank 1, so that the sterile buffer tank 1 maintains a positive pressure P0. The pneumatic regulating valve 131 on the sterile gas input pipe 13 is linked with the buffer tank pressure sensor 16 on the sterile buffer tank 1 for control. When the buffer tank pressure sensor 16 detects that the pressure in the sterile buffer tank 1 reaches P0, the pneumatic regulating valve 131 is closed. When the buffer tank pressure sensor 16 detects that the pressure in the sterile buffer tank 1 is lower than P0, the pneumatic regulating valve 131 is opened, so that the positive pressure in the sterile buffer tank 1 is always maintained at P0.

[0049] Under the action of the positive pressure in the sterile buffer tank 1, the fruit particle-containing liquid in the sterile buffer tank 1 is discharged outward from the material output pipe 11. The flow diameter of the first sterile diaphragm flow regulating valve 111 on the material output pipe 11 is large, so it can effectively reduce the pulp breakage rate, thereby ensuring the quality and taste of the fruit particle-containing liquid.

[0050] The advantages of the present invention are: 1. Aseptic buffering and conveying of liquid containing fruit particles is realized. 2. An aseptic stirring device 2 is used to stir the liquid in the aseptic buffer tank 1, and a weighing sensor 15 is used to monitor the liquid level in the aseptic buffer tank 1. When the liquid level is high, the stirring speed of the aseptic stirring device 2 is high, and when the liquid level is low, the stirring speed of the aseptic stirring device 2 is low. The stirring speeds of the aseptic stirring device 2 are different at different liquid levels, which can effectively ensure that the fruit particles are evenly distributed while the fruit particles are not damaged, thereby greatly improving the taste and quality of the fruit particle-containing beverage. 3. Back pressure is created in the aseptic buffer tank 1, and the liquid containing fruit particles in the aseptic buffer tank 1 is discharged outward from the material output pipe 11 through pressure. The flow diameter of the first aseptic diaphragm flow regulating valve 111 on the material output pipe 11 is large. This transportation method can further effectively reduce the pulp breakage rate, thereby further ensuring the quality and taste of the liquid containing fruit particles.

Claims

1. A sterile buffering and conveying device for a liquid containing fruit particles, comprising: A sterile buffer tank, a material output pipe and a material input pipe are connected to the sterile buffer tank, and the characteristics are as follows: the bottom of the sterile buffer tank is a cone with a diameter gradually decreasing from top to bottom, the material output pipe is connected to the lowest position of the bottom of the sterile buffer tank, a first sterile diaphragm flow regulating valve is arranged on the material output pipe, a sterile stirring device is arranged in the sterile buffer tank, a sterile gas input pipe is connected to the sterile buffer tank, and a feed valve group is arranged at the input end of the material input pipe, and the feed valve group comprises: a first sterile control valve, a second sterile control valve, a third sterile control valve, and a fourth sterile control valve connected to the same valve cavity, a feed pipe and a return pipe are connected to the first sterile control valve, the second sterile control valve is connected to the first steam input pipe, the first steam input pipe is respectively connected to the shielding steam delivery pipe and the sterilization steam delivery pipe, the third sterile control valve is respectively connected to the material input pipe and the washing liquid delivery pipe, and the fourth sterile control valve is connected to the first discharge pipe with a discharge control valve and a first temperature sensor.

2. The aseptic buffering and conveying device for fruit particle-containing liquid according to claim 1, characterized in that: The side walls and the outer sides of the bottom of the sterile buffer tank are provided with cooling jackets, and the cooling jackets are connected with a cooling medium input pipe and a cooling medium output pipe.

3. The aseptic buffering and conveying device for fruit particle-containing liquid according to claim 1, characterized in that: The aseptic stirring device is an aseptic vertical stirrer, which includes: stirring blades, which are arranged on a stirring shaft, and the stirring shaft extends upward from the aseptic buffer tank and is connected to the stirring motor. The connection between the stirring shaft and the stirring motor is located in a shielding chamber, and the shielding chamber is provided with a motor shielding input pipe and a motor shielding output pipe with a third temperature sensor. The motor shielding input pipe is connected to the cooled medium output end of the heat exchanger for cooling, and the cooled medium input end of the heat exchanger is respectively connected to the shielding steam delivery pipe and the sterilization steam delivery pipe, and the heat exchanger is connected to a heat exchanger cooling water inlet pipe and a heat exchanger cooling water drain pipe.

4. The aseptic buffering and conveying device for fruit particle-containing liquid according to claim 3, characterized in that: A weighing sensor is provided on the sterile buffer tank.

5. A sterile buffering and conveying device for fruit particle-containing liquid according to claim 1, 2 or 3, characterized in that: The first sterile control valve and the third sterile control valve are both pneumatic sterile T-type valves, the second sterile control valve and the fourth sterile control valve are both pneumatic sterile L-type valves, the first sterile control valve, the second sterile control valve, the third sterile control valve and the fourth sterile control valve are arranged in a cross shape, and the first sterile control valve is arranged opposite to the third sterile control valve, and the second sterile control valve is arranged opposite to the fourth sterile control valve.

6. The aseptic buffering and conveying device for fruit particle-containing liquid according to claim 5, characterized in that: The feed valve group is formed by welding a first aseptic control valve, a second aseptic control valve, a third aseptic control valve, a fourth aseptic control valve and a reducing four-way pipe, and the inner cavity of the reducing four-way pipe forms a valve cavity.

7. The aseptic buffering and conveying device for fruit particle-containing liquid according to claim 5, characterized in that: A seventh aseptic control valve is provided at the input end of the washing liquid delivery pipe, and the seventh aseptic control valve is connected to the spray pipeline and the sixth control valve. The spray pipeline is connected to a spray ball with a spray hole, and the spray ball is arranged on the top of the aseptic buffer tank. The sixth control valve is connected to the fifth control valve through a connecting pipe, and the fifth control valve is connected to the washing liquid inlet pipe. The connecting pipe is also connected to a second steam input pipe, and the second steam input pipe is respectively connected to the shielding steam delivery pipe and the sterilization steam delivery pipe; the second steam input pipe is provided with a second steam input control valve; the connecting pipe is also provided with a second temperature sensor and a second discharge pipe; the fifth control valve adopts a pneumatic L-type reversing valve, the sixth control valve adopts a pneumatic L-type reversing valve, and the seventh aseptic control valve is a pneumatic aseptic T-type valve.

8. The aseptic buffering and conveying device for fruit particle-containing liquid according to claim 1, 2 or 3, characterized in that: The sterile cache tank is provided with a cache tank pressure sensor, the sterile gas input pipe is provided with a pneumatic regulating valve and a first pressure sensor, the sterile gas input pipe is also provided with a safety valve and an exhaust pipe, and the exhaust pipe is provided with an exhaust control valve.

9. A sterile buffering and conveying device for fruit particle-containing liquid according to claim 1, 2 or 3, characterized in that: A third steam input pipe is arranged on the first discharge pipe, the third steam input pipe is connected to the first steam input pipe, and a third steam input control valve is arranged on the third steam input pipe.

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