Aging tank discharge buffer system and freeze production line

Abstract

The utility model relates to food processing technical field provides an aging tank discharge buffer system and freeze production line, above -mentioned aging tank discharge buffer system includes: first aging tank, second aging tank, buffer tank and controller, buffer tank has with first aging tank fluid communication's first state and with second aging tank fluid communication's second state, buffer tank is provided with first liquid level sensor and second liquid level sensor, the position of second liquid level sensor is higher than the position of first liquid level sensor, controller, with first liquid level sensor, second liquid level sensor electric connection, when first liquid level sensor detects the liquid level of buffer tank is in low position, or second liquid level sensor detects the liquid level of buffer tank is in high position, controller is used for controlling buffer tank switches between first state and second state to empty the liquid in first aging tank or second aging tank. The utility model can avoid the insufficient supply, also can avoid the waste of liquid residue.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to an aging tank discharge buffer system and a freezing production line. Background Technology

[0002] In existing ice cream production lines, the aging tanks typically operate in a direct-connection manner, meaning the liquid feed is directly transported to the freezer via pipeline using a centrifugal pump. Since the freezer cannot be interrupted during operation, any interruption in feed would disrupt the expansion process. Therefore, the valves in one aging tank are closed before the liquid is completely drained, and the supply is switched to another aging tank. This avoids the gap caused by not switching to the next tank promptly after the previous one has drained, resulting in a certain amount of residual liquid being wasted in the tanks. Utility Model Content

[0003] This utility model provides an aging tank discharge buffer system and a freezing production line to solve the problem in the prior art where, in order to ensure the stable flow of the freezing machine, the material is switched to another aging tank before the material in the aging tank is emptied, resulting in residual waste of material in the previous aging tank.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] Firstly, this utility model provides an aging tank discharge buffer system, comprising:

[0006] Both the first and second aging tanks are used to store the liquid material.

[0007] The buffer tank has a first state in fluid communication with the first aging tank and a second state in fluid communication with the second aging tank; the buffer tank is equipped with a first liquid level sensor and a second liquid level sensor, the second liquid level sensor being located at a higher position than the first liquid level sensor.

[0008] The controller is electrically connected to the first liquid level sensor and the second liquid level sensor. When the first liquid level sensor detects that the liquid level in the buffer tank is low, or when the second liquid level sensor detects that the liquid level in the buffer tank is high, the controller is used to control the buffer tank to switch between a first state and a second state to drain the liquid in the first aging tank or the second aging tank.

[0009] According to the present invention, an aging tank discharge buffer system further includes: a first outlet pipe, a second outlet pipe, and a first material pipe;

[0010] One end of the first outlet pipe is connected to the first aging tank, and the other end is connected to the first material pipe; one end of the second outlet pipe is connected to the second aging tank, and the other end is connected to the first material pipe; the first material pipe is connected to the buffer tank.

[0011] The first outlet pipe is equipped with a first control valve, and the second outlet pipe is equipped with a second control valve;

[0012] The controller is electrically connected to the first control valve and the second control valve respectively; the controller is used to control the other control valve to be closed when one of the first control valve and the second control valve is turned on.

[0013] According to the present invention, an aging tank discharge buffer system is provided, wherein a variable frequency pump is provided on the first material pipeline;

[0014] The variable frequency pump is electrically connected to the controller. When the first liquid level sensor detects that the liquid level is low, the controller is also used to increase the delivery power of the variable frequency pump; when the second liquid level sensor detects that the liquid level is high, the controller is also used to decrease the delivery power of the variable frequency pump.

[0015] The aging tank discharge buffer system provided by this utility model further includes: a first reversing valve and a second reversing valve;

[0016] The first reversing valve is located at the connection between the first material pipeline and the first outlet pipeline, and the second reversing valve is located at the connection between the first material pipeline and the second outlet pipeline;

[0017] The controller is electrically connected to the first reversing valve and the second reversing valve respectively;

[0018] The controller is used to control the state switching of the first reversing valve and the second reversing valve, so as to realize the connection and disconnection of the first outlet pipe, the second outlet pipe and the first material pipe.

[0019] According to the present invention, an aging tank discharge buffer system is provided, wherein the buffer tank has a feed inlet and a flushing outlet; the feed inlet is located in the middle of the buffer tank, and the flushing outlet is located at the top of the buffer tank;

[0020] The aging tank discharge buffer system also includes: a bypass pipeline;

[0021] One end of the bypass pipe is connected to the first material pipe, and the other end is connected to the flushing port; the first material pipe is connected to the feed inlet.

[0022] The aging tank discharge buffer system provided by this utility model further includes: a third control valve and a fourth control valve;

[0023] The bypass pipeline is equipped with the third control valve, and the fourth control valve is installed between the connection between the first material pipeline and the bypass pipeline and the inlet.

[0024] The third control valve and the fourth control valve are electrically connected to the controller, and the controller is used to control one of the third control valve and the fourth control valve to be turned on while the other is turned off.

[0025] And / or, the aging tank discharge buffer system further includes: a fifth control valve;

[0026] The fifth control valve is located at the inlet end of the first material pipeline, and the controller is electrically connected to the fifth control valve;

[0027] The controller is used to control the on / off state of the fifth control valve.

[0028] The aging tank discharge buffer system provided by this utility model also includes an air suction pipe;

[0029] The suction pipe is connected to the buffer tank and is used to connect to an external air extraction device.

[0030] According to the present invention, an aging tank discharge buffer system is provided, wherein the buffer tank has an air intake port;

[0031] The air intake is located at the top of the buffer tank and is connected to the air intake pipe.

[0032] Secondly, this utility model provides a freezing production line, including: a freezing machine and an aging tank discharge buffer system as described above;

[0033] The buffer tank is connected to the freezer, and the aging tank discharge buffer system is used to provide the freezer with a stable flow rate of liquid.

[0034] According to the freezing production line provided by this utility model, a sixth control valve and a constant frequency pump are also included.

[0035] The sixth control valve and the fixed-frequency pump are both located in the pipeline connecting the buffer tank and the freezer;

[0036] The controller is electrically connected to the sixth control valve and the fixed-frequency pump, respectively.

[0037] The aging tank discharge buffer system and freezing production line provided by this utility model, by setting a buffer tank between the first aging tank, the second aging tank and the freezing machine, and installing a first liquid level sensor and a second liquid level sensor in the buffer tank, when the first liquid level sensor detects that the liquid level in the buffer tank is low, or when the second liquid level sensor detects that the liquid level in the buffer tank is high, the controller controls the connection between the first aging tank, the second aging tank and the buffer tank to switch between a first state and a second state, so that the buffer tank is connected to one of the first aging tank and the second aging tank, while the other is closed, so that the first aging tank and the second aging tank alternately supply material to the buffer tank. This can avoid insufficient material supply caused by the slow discharge speed due to the low liquid level in the first aging tank or the second aging tank, and can also empty the liquid in the first aging tank or the second aging tank to avoid material residue waste, ensuring stable material supply while reducing material waste and saving production costs. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a flowchart of the aging tank discharge buffer system provided by this utility model.

[0040] Figure 2 This is a control logic block diagram of the aging tank discharge buffer system provided by this utility model.

[0041] Figure label:

[0042] 1. First aging tank; 2. Second aging tank;

[0043] 3. Buffer tank; 31. First liquid level sensor; 32. Second liquid level sensor; 33. Feed inlet; 34. Rinse outlet; 35. Discharge outlet; 36. Air intake;

[0044] 4. Controller; 5. First outlet pipe; 6. Second outlet pipe; 7. First material pipe;

[0045] 8. First control valve; 9. Second control valve; 10. Variable frequency pump; 11. First directional valve;

[0046] 12. Second directional control valve; 13. Bypass pipeline; 14. Third control valve; 15. Fourth control valve;

[0047] 16. Fifth control valve; 17. Sixth control valve; 18. Fixed frequency pump; 19. Suction pipe. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0049] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of clarifying the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0051] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] The following is combined with Figures 1 to 2 The present invention will provide a detailed description of the aging tank discharge buffer system and freezing production line provided by the present invention through specific embodiments and application scenarios.

[0054] Firstly, such as Figure 1 and Figure 2 As shown, this embodiment provides an aging tank discharge buffer system, including: a first aging tank 1, a second aging tank 2, a buffer tank 3, and a controller 4.

[0055] Both the first aging tank 1 and the second aging tank 2 are used to store the liquid material.

[0056] The buffer tank 3 has a first state in fluid communication with the first aging tank 1 and a second state in fluid communication with the second aging tank 2; the buffer tank 3 is provided with a first liquid level sensor 31 and a second liquid level sensor 32, and the position of the second liquid level sensor 32 is higher than the position of the first liquid level sensor 31.

[0057] The controller 4 is electrically connected to the first liquid level sensor 31 and the second liquid level sensor 32. When the first liquid level sensor 31 detects that the liquid level of the buffer tank 3 is low, or when the second liquid level sensor 32 detects that the liquid level of the buffer tank 3 is high, the controller 4 is used to control the buffer tank 3 to switch between the first state and the second state to drain the liquid in the first aging tank 1 or the second aging tank 2.

[0058] Understandably, in ice cream production, the ice cream base undergoes fat crystallization and protein hydration in the aging tank before being fed into the freezer for further expansion. The discharge rate of the aging tank needs to be synchronized with the feed rate of the freezer to avoid material shortages or overload.

[0059] In actual production, two aging tanks are typically set up: a first aging tank 1 and a second aging tank 2. After the liquid in the first aging tank 1 has been completely supplied, the process switches to the second aging tank 2. Because both the first and second aging tanks have a cylindrical structure in the middle and conical ends, although level detection devices are installed at the bottom of both tanks, these devices can only be installed on the cylindrical parts, not the conical parts. This causes a discrepancy between the level detected by the devices and the actual level in the first and second aging tanks. When the level detection device alarms, the supply to the first and second aging tanks is switched. However, there may still be residual liquid in either the first or second aging tank.

[0060] In this embodiment, a buffer tank 3 is installed within the aging tank discharge buffer system to buffer the feed from the freezer and stably deliver liquid material to the freezer. The buffer tank 3 is selectively connected to either the first aging tank 1 or the second aging tank 2; that is, when the buffer tank 3 is connected to the first aging tank 1, it is disconnected from the second aging tank 2, or vice versa. At any given time, the buffer tank 3 is only connected to one of the first aging tank 1 or the second aging tank 2 and receives the liquid material delivered by either the first aging tank 1 or the second aging tank 2.

[0061] Furthermore, in this embodiment, a first liquid level sensor 31 and a second liquid level sensor 32 are provided on the buffer tank 3. The second liquid level sensor 32 is used to detect the high liquid level of the buffer tank 3, and the first liquid level sensor 31 is used to detect the low liquid level of the buffer tank 3.

[0062] In practical use, taking the example of the first aging tank 1 supplying material to the buffer tank 3 first, and the second aging tank 2 then supplying material to the buffer tank 3, the first aging tank 1 first delivers liquid to the buffer tank 3. As the liquid level in the first aging tank 1 decreases, the first liquid level sensor 31 detects that the liquid level in the buffer tank 3 is low, indicating that the liquid level in the first aging tank 1 has dropped to the latter half. The first liquid level sensor 31 feeds back the liquid level information to the controller 4. At this time, the controller 4 controls the buffer tank 3 to switch from the first state to the second state, and the connection between the first aging tank 1 and the buffer tank 3 is disconnected. Simultaneously, the controller 4 controls the second aging tank 2 to connect with the buffer tank 3. As the liquid in the second aging tank 2 replenishes the liquid level in the buffer tank 3, the liquid level in the buffer tank 3 gradually rises until it reaches the detection position of the second liquid level sensor 32. The second liquid level sensor 32 feeds back the liquid level information to the controller 4. At this time, the controller 4 controls the buffer tank 3 to switch from the second state to the first state, the first aging tank 1 and the buffer tank 3 are reconnected, and the connection between the second aging tank 2 and the buffer tank 3 is disconnected. At this point, the high liquid level in buffer tank 3 does not affect the feeding of the freezer, and the residual liquid in the first aging tank 1 continues to be discharged into buffer tank 3. When the first liquid level sensor 31 detects that the liquid level in buffer tank 3 is low, the feeding is switched back to the second aging tank 2 until the second liquid level sensor 32 detects that the liquid level is high, and the state switching continues until the liquid in the first aging tank 1 is emptied. This process is repeated three to five times until the liquid in the first aging tank 1 is completely emptied. The second aging tank 2 continues to feed the freezer until the liquid in the second aging tank 2 is emptied, and the freezer is turned off, completing the expansion processing of one batch of liquid.

[0063] Optionally, the first liquid level sensor 31 and the second liquid level sensor 32 can be point-type liquid level sensors.

[0064] The aging tank discharge buffer system provided by this utility model sets up a buffer tank 3 between the first aging tank 1, the second aging tank 2, and the freezer. A first liquid level sensor 31 and a second liquid level sensor 32 are installed in the buffer tank 3. When the first liquid level sensor 31 detects that the liquid level in the buffer tank 3 is low, or when the second liquid level sensor 32 detects that the liquid level in the buffer tank 3 is high, the controller 4 controls the connection between the first aging tank 1, the second aging tank 2, and the buffer tank 3 to switch between a first state and a second state. This allows the buffer tank 3 to be connected to one of the first aging tank 1 or the second aging tank 2 while the other is closed. This allows the first aging tank 1 and the second aging tank 2 to alternately supply material to the buffer tank 3. This avoids insufficient material supply caused by a slow discharge rate due to a low liquid level in the first aging tank 1 or the second aging tank 2, and also allows the liquid in the first aging tank 1 or the second aging tank 2 to be emptied, preventing liquid residue waste. This ensures stable material supply while reducing liquid waste and saving production costs.

[0065] like Figure 1As shown, the aging tank discharge buffer system of this embodiment also includes: a first outlet pipe 5, a second outlet pipe 6, and a first material pipe 7.

[0066] One end of the first outlet pipe 5 is connected to the first aging tank 1, and the other end is connected to the first material pipe 7; one end of the second outlet pipe 6 is connected to the second aging tank 2, and the other end is connected to the first material pipe 7; the first material pipe 7 is connected to the buffer tank 3.

[0067] The first outlet pipe 5 is equipped with a first control valve 8, and the second outlet pipe 6 is equipped with a second control valve 9.

[0068] The controller 4 is electrically connected to the first control valve 8 and the second control valve 9 respectively; the controller 4 is used to control the other to be closed when one of the first control valve 8 and the second control valve 9 is turned on.

[0069] Understandably, the first outlet pipe 5 is used to transport the liquid in the first aging tank 1 to the first material pipe 7, and the second outlet pipe 6 is used to transport the liquid in the second aging tank 2 to the first material pipe 7. Since the first aging tank 1, the second aging tank 2 and the first material pipe 7 need to be connected selectively, the controller 4 controls the first control valve 8 and the second control valve 9 in a coordinated manner to ensure that when one of the first control valve 8 and the second control valve 9 is open, the other is closed.

[0070] When the first control valve 8 is open, the second control valve 9 is closed. At this time, the first aging tank 1 supplies liquid to the first material pipeline 7, and the second aging tank 2 stops supplying liquid. When the first control valve 8 is closed, the second control valve 9 is open. At this time, the first aging tank 1 stops supplying liquid, and the second aging tank 2 supplies liquid to the first material pipeline 7. Since both the first control valve 8 and the second control valve 9 are controlled by the controller 4, no manual intervention is required, which improves the automation level of the aging tank discharge buffer system.

[0071] Specifically, the first control valve 8 and the second control valve 9 can be pneumatic butterfly valves.

[0072] like Figure 1 and Figure 2 As shown, the first material pipeline 7 in this embodiment is equipped with a variable frequency pump 10.

[0073] The variable frequency pump 10 is electrically connected to the controller 4. When the first liquid level sensor 31 detects that the liquid level is low, the controller 4 is also used to increase the delivery power of the variable frequency pump 10; when the second liquid level sensor 32 detects that the liquid level is high, the controller 4 is also used to decrease the delivery power of the variable frequency pump 10.

[0074] Understandably, the variable frequency pump 10 can adjust the conveying speed of the material in the first material pipeline 7 by adjusting its own conveying power. When the first liquid level sensor 31 detects that the liquid level in the buffer tank 3 is low, it indicates that the inflow velocity of the liquid in the buffer tank 3 is less than the outflow velocity. At this time, the variable frequency pump 10 increases its conveying power, thereby increasing the conveying speed of the liquid in the first material pipeline 7, ensuring that the inflow velocity of the liquid in the buffer tank 3 is greater than the outflow velocity, and replenishing the buffer tank 3 with liquid, thus avoiding fluctuations in the outflow velocity of the liquid in the buffer tank 3. When the second liquid level sensor 32 detects that the liquid level in the buffer tank 3 is high, it indicates that the inflow velocity of the liquid in the buffer tank 3 is greater than the outflow velocity. At this time, the variable frequency pump 10 decreases its conveying power, thereby decreasing the conveying speed of the liquid in the first material pipeline 7, ensuring that the inflow velocity of the liquid in the buffer tank 3 is less than the outflow velocity, and slowing down the replenishment rate of the buffer tank 3, thus preventing the liquid in the buffer tank 3 from overflowing due to overfilling.

[0075] For example, the variable frequency pump 10 can be a sanitary centrifugal pump.

[0076] In this embodiment, by installing a variable frequency pump 10 on the first material pipeline 7, the speed at which the liquid is replenished in the buffer tank 3 can be further adjusted by regulating the delivery power of the variable frequency pump 10, ensuring that the liquid level in the buffer tank 3 is within the normal range, which is beneficial to the reliability of the operation of the buffer tank 3.

[0077] like Figure 1 and Figure 2 As shown, this embodiment also includes: a first reversing valve 11 and a second reversing valve 12.

[0078] The first reversing valve 11 is located at the connection between the first material pipeline 7 and the first outlet pipeline 5, and the second reversing valve 12 is located at the connection between the first material pipeline 7 and the second outlet pipeline 6.

[0079] The controller 4 is electrically connected to the first reversing valve 11 and the second reversing valve 12 respectively.

[0080] The controller 4 is used to control the state switching of the first reversing valve 11 and the second reversing valve 12, so as to realize the opening and closing of the first outlet pipe 5, the second outlet pipe 6 and the first material pipe 7.

[0081] Understandably, because the feed solution is rich in protein, it is prone to spoilage and adheres to the inner walls of pipes and tanks. After the freezing process of a batch of feed solution is completed, the pipes and tanks need to be cleaned promptly.

[0082] During the shutdown of the freezing production line, the first material pipeline 7 is also used to pass cleaning fluid for cleaning. In order to make it easier to switch between the feeding state and the flushing state of the first material pipeline 7, this embodiment is provided with a first reversing valve 11 and a second reversing valve 12.

[0083] Specifically, both the first reversing valve 11 and the second reversing valve 12 have three fluid ports. One fluid port is connected to the incoming flow direction of the first material pipeline 7, the second fluid port is connected to the outgoing flow direction of the first material pipeline 7 to the buffer tank 3, and the third fluid port is connected to either the first outlet pipeline 5 or the second outlet pipeline 6. The first reversing valve 11 switches between the feeding state and the flushing state by switching the connection state of the first and second fluid ports. Furthermore, the principle of the second reversing valve 12 is similar to that of the first reversing valve 11, and will not be described in detail here.

[0084] This embodiment, by setting a first reversing valve 11 and a second reversing valve 12, can conveniently switch between the flushing state and the feeding state of the first material pipeline 7 by controlling the on / off state of different fluid ports of the first reversing valve 11 and the second reversing valve 12, thereby improving the working efficiency of the aging tank discharge buffer system.

[0085] like Figure 1 As shown, the buffer tank 3 of this embodiment has a feed inlet 33 and a rinsing outlet 34; the feed inlet 33 is located in the middle of the buffer tank 3, and the rinsing outlet 34 is located at the top of the buffer tank 3.

[0086] The aging tank discharge buffer system also includes: a bypass pipe 13; one end of the bypass pipe 13 is connected to the first material pipe 7, and the other end is connected to the flushing port 34; the first material pipe 7 is connected to the feed port 33.

[0087] Understandably, when the inlet 33 is located at the top of the buffer tank 3, a large number of bubbles will be generated during the process of the liquid falling from the top. When the inlet 33 is located at the bottom of the buffer tank 3, the resistance to the liquid entering is greater. Therefore, in this embodiment, the inlet 33 is located in the middle of the buffer tank 3. At the same time, in order to flush the entire inner wall of the tank with the flushing liquid, in this embodiment, the flushing port 34 is located at the top of the buffer tank 3.

[0088] To allow the liquid material transported in the first material pipeline 7 to be fed into the buffer tank 3 through the inlet 33 in the middle, and the cleaning fluid transported in the first material pipeline 7 to be fed into the buffer tank 3 through the top, a bypass pipeline 13 is provided in this embodiment. When the buffer tank 3 is in the feeding state, the bypass pipeline 13 is disconnected from the first material pipeline 7, and the material enters the buffer tank 3 through the inlet 33 at the end of the first material pipeline 7. When the buffer tank 3 is in the flushing state, the bypass pipeline 13 is connected to the first material pipeline, the end of the first material pipeline is disconnected, and the material enters the buffer tank 3 through the flushing port 34 via the bypass pipeline 13.

[0089] In this embodiment, by setting a bypass pipe 13 in the first material pipe 7, placing the flushing port 34 at the top of the buffer tank 3, and placing the feed port 33 in the middle of the buffer tank 3, the different feeding requirements of the buffer tank 3 in the feeding state and flushing state can be met, and the conveying of different pipelines can be realized.

[0090] like Figure 1 and Figure 2 As shown, the aging tank discharge buffer system in this embodiment also includes a third control valve 14 and a fourth control valve 15.

[0091] The bypass pipe 13 is equipped with a third control valve 14, and a fourth control valve 15 is installed between the connection between the first material pipe 7 and the bypass pipe 13 and the inlet 33.

[0092] The third control valve 14 and the fourth control valve 15 are electrically connected to the controller 4. The controller 4 is used to control one of the third control valve 14 and the fourth control valve 15 to be turned on while the other is turned off.

[0093] Understandably, since the end of the first material pipeline 7 and the bypass pipeline 13 need to be connected, the controller 4 performs linkage control on the third control valve 14 and the fourth control valve 15 to ensure that when one of the third control valve 14 and the fourth control valve 15 is open, the other is closed.

[0094] When the third control valve 14 is open, the fourth control valve 15 is closed. At this time, the buffer tank 3 is in the flushing state, and the cleaning fluid is sent into the buffer tank 3 from the bypass pipe 13. When the third control valve 14 is closed, the fourth control valve 15 is open. At this time, the buffer tank 3 is in the feeding state, and the feed liquid is sent into the buffer tank 3 from the end of the first material pipe 7. Since both the third control valve 14 and the fourth control valve 15 are controlled by the controller 4, no manual intervention is required, which improves the automation level of the aging tank discharge buffer system.

[0095] Specifically, the third control valve 14 and the fourth control valve 15 can be pneumatic butterfly valves.

[0096] like Figure 1 and Figure 2 As shown, the aging tank discharge buffer system in this embodiment also includes a fifth control valve 16.

[0097] The fifth control valve 16 is located at the inlet end of the first material pipeline 7, and the controller 4 is electrically connected to the fifth control valve 16; the controller 4 is used to control the opening and closing of the fifth control valve 16.

[0098] Understandably, when the buffer tank 3 is in the cleaning state, the fifth control valve 16 can quickly shut off the delivery of cleaning fluid in the first material pipeline 7. In the event of an emergency, the fifth control valve 16 can respond quickly and stop the delivery of cleaning fluid into the buffer tank 3, thereby achieving a rapid switch of the flushing state of the buffer tank 3.

[0099] Specifically, the fifth control valve 16 can be a pneumatic butterfly valve.

[0100] like Figure 1 As shown, the aging tank discharge buffer system of this embodiment also includes an air suction pipe 19; the air suction pipe 19 is connected to the buffer tank 3 and is used to connect to an external air extraction device.

[0101] Understandably, because the liquid is stirred in the first aging tank 1 and the second aging tank 2, foam is generated in the liquid. The foam will affect the detection of the actual liquid level by the first liquid level sensor 31, thereby affecting the accuracy of switching between the first aging tank 1 and the second aging tank 2.

[0102] In this embodiment, the suction pipe 19 is connected to the buffer tank 3, and the suction device is used to evacuate the buffer tank 3 through the suction pipe 19 to maintain a slightly negative pressure inside the buffer tank 3, which helps to dissipate the foam and avoids affecting the sampling accuracy of the first liquid level sensor 31.

[0103] like Figure 1 As shown, the buffer tank 3 in this embodiment has an air intake 36; the air intake 36 is located at the top of the buffer tank 3 and is connected to the air intake pipe 19.

[0104] Understandably, since the density of gas is lower than that of liquid, most of the foam generated in the liquid material is located at the top of the liquid. The suction port 36 being located at the top of the buffer tank 3 can prevent the suction pipe 19 from sucking in the liquid material, thus avoiding damage to the suction equipment. Furthermore, the location of the suction port 36 at the top of the buffer tank 3 can minimize the entry of liquid material or impurities into the suction channel, preventing the formation of a siphon due to negative pressure and the continuous suction of the liquid material.

[0105] Secondly, this embodiment provides a freezing production line, including: a freezing machine and the aging tank discharge buffer system as described above; the buffer tank is connected to the freezing machine, and the aging tank discharge buffer system is used to provide the freezing machine with a stable flow rate of liquid.

[0106] Specifically, since the freezing production line includes an aging tank discharge buffer system, and the specific structure of the aging tank discharge buffer system is as described in the above embodiments, the freezing production line shown in this embodiment includes all the technical solutions of the above embodiments. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiments, which will not be elaborated here.

[0107] Understandably, the discharge pipe of the aging tank discharge buffer system is connected to the freezer. The buffer tank 3 of the aging tank discharge buffer system can provide a stable liquid to the freezer, avoid material interruption or overload, realize uninterrupted liquid transmission, and enable the liquid to fully expand in the freezer, thus ensuring the normal operation of the freezer production line.

[0108] like Figure 1 and Figure 2 As shown, the freezing production line in this embodiment also includes a sixth control valve 17 and a fixed-frequency pump 18.

[0109] The sixth control valve 17 and the fixed-frequency pump 18 are both located on the pipeline connecting the buffer tank 3 and the freezer; the controller 4 is electrically connected to the sixth control valve 17 and the fixed-frequency pump 18 respectively.

[0110] Understandably, the sixth control valve 17 is used to control the opening and closing of the pipeline between the buffer tank 3 and the freezer. It is normally open during the operation of the freezer. After the liquid from the first aging tank 1 and the second aging tank 2 has been delivered to the freezer, the sixth control valve 17 closes, ending the production of this batch. The constant-frequency pump 18 is used to deliver the liquid at a constant power, ensuring that the liquid flowing from the buffer tank 3 enters the freezer at a constant flow rate, thus ensuring the normal operation of the freezer.

[0111] Specifically, the sixth control valve 17 can be a pneumatic butterfly valve. The constant frequency pump 18 can be a sanitary centrifugal pump.

[0112] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An aging tank outfeed buffer system characterized by, include: Both the first and second aging tanks are used to store the liquid material. The buffer tank has a first state in fluid communication with the first aging tank and a second state in fluid communication with the second aging tank; the buffer tank is equipped with a first liquid level sensor and a second liquid level sensor, the second liquid level sensor being located at a higher position than the first liquid level sensor. The controller is electrically connected to the first liquid level sensor and the second liquid level sensor. When the first liquid level sensor detects that the liquid level in the buffer tank is low, or when the second liquid level sensor detects that the liquid level in the buffer tank is high, the controller is used to control the buffer tank to switch between a first state and a second state to drain the liquid in the first aging tank or the second aging tank.

2. The aging tank outfeed buffer system of claim 1, wherein, Also includes: First outlet pipeline, second outlet pipeline and first material pipeline; One end of the first outlet pipe is connected to the first aging tank, and the other end is connected to the first material pipe; one end of the second outlet pipe is connected to the second aging tank, and the other end is connected to the first material pipe; the first material pipe is connected to the buffer tank. The first outlet pipe is equipped with a first control valve, and the second outlet pipe is equipped with a second control valve; The controller is electrically connected to the first control valve and the second control valve respectively; the controller is used to control the other control valve to be closed when one of the first control valve and the second control valve is turned on.

3. The aging tank outfeed buffer system of claim 2, wherein, The first material pipeline is equipped with a variable frequency pump; The variable frequency pump is electrically connected to the controller. When the first liquid level sensor detects that the liquid level is low, the controller is also used to increase the delivery power of the variable frequency pump; when the second liquid level sensor detects that the liquid level is high, the controller is also used to decrease the delivery power of the variable frequency pump.

4. The aging tank outfeed buffer system of claim 2, wherein, Also includes: First directional valve and second directional valve; The first reversing valve is located at the connection between the first material pipeline and the first outlet pipeline, and the second reversing valve is located at the connection between the first material pipeline and the second outlet pipeline; The controller is electrically connected to the first reversing valve and the second reversing valve respectively; the controller is used to control the state switching of the first reversing valve and the second reversing valve to realize the opening and closing of the first outlet pipe, the second outlet pipe and the first material pipe.

5. The aging tank outfeed buffer system of claim 4, wherein, The buffer tank has a feed inlet and a flushing outlet; the feed inlet is located in the middle of the buffer tank, and the flushing outlet is located at the top of the buffer tank. The aging tank discharge buffer system also includes: a bypass pipeline; One end of the bypass pipe is connected to the first material pipe, and the other end is connected to the flushing port; the first material pipe is connected to the feed inlet.

6. The aging tank outfeed buffer system of claim 5, wherein, Also includes: The third control valve and the fourth control valve; The bypass pipeline is equipped with the third control valve, and the fourth control valve is installed between the connection between the first material pipeline and the bypass pipeline and the inlet. The third control valve and the fourth control valve are electrically connected to the controller, and the controller is used to control one of the third control valve and the fourth control valve to be turned on while the other is turned off. And / or, the aging tank discharge buffer system further includes: a fifth control valve; The fifth control valve is located at the inlet end of the first material pipeline, and the controller is electrically connected to the fifth control valve; The controller is used to control the on / off state of the fifth control valve.

7. The aging tank outfeed buffer system of claim 1, wherein, It also includes the intake pipe; The suction pipe is connected to the buffer tank and is used to connect to an external air extraction device.

8. The aging tank outfeed buffer system of claim 7, wherein, The buffer tank has an air intake; The air intake is located at the top of the buffer tank and is connected to the air intake pipe.

9. A freezing line, characterized in that include: The freezing machine and the aging tank discharge buffer system as described in any one of claims 1 to 8; The buffer tank is connected to the freezer, and the aging tank discharge buffer system is used to provide the freezer with a stable flow rate of liquid.

10. The freeze-drying line according to claim 9, characterized in that It also includes a sixth control valve and a constant frequency pump; The sixth control valve and the fixed-frequency pump are both located in the pipeline connecting the buffer tank and the freezer; The controller is electrically connected to the sixth control valve and the fixed-frequency pump, respectively.

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