Intelligent nitrogen conditioning device for dairy products

Abstract

The utility model relates to the field of nitrogen gas regulation for dairy products, in particular to an intelligent nitrogen gas regulation device for dairy products. The device comprises a tank assembly, a stirring assembly, and a control assembly. Nitrogen gas is input into the stirring tank from the air inlet pipe through the air conveying pump, and the first electromagnetic valve and the first check valve ensure that nitrogen gas is input into the stirring tank in one direction. When nitrogen gas enters the stirring tank, the nitrogen gas can expel oxygen in the dairy product under the condition that the stirring assembly stirs the dairy product. Oxygen flows out of the stirring tank from the exhaust pipe, passes through the second check valve and the third electromagnetic valve to the oxygen detection sensor, and the oxygen detection sensor detects the amount of oxygen and uploads it to the controller. Thus, it can be determined whether the oxygen in the stirring tank is exhausted, and the amount of input nitrogen gas can be controlled accurately. This solves the problem that the amount of input nitrogen gas is difficult to control accurately, which may lead to nitrogen gas waste or incomplete oxygen expulsion.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen regulation in dairy products, and more specifically, to an intelligent nitrogen regulation device for dairy products. Background Technology

[0002] In dairy production, nitrogen (N2) is a safe and inert food additive that primarily improves product quality and extends shelf life through physical processes, without participating in chemical reactions. Nitrogen is commonly used to displace oxygen (O2) in packaging or liquids, thereby inhibiting fat oxidation, preventing vitamin and pigment degradation, blocking the growth of aerobic microorganisms, and extending the shelf life of dairy products. Currently, in dairy production, a fixed amount of nitrogen is typically introduced directly into the mixing tank to expel oxygen. While this method achieves some degree of oxygen removal, the required nitrogen amount varies depending on the amount of dairy product in the tank, making precise control of the nitrogen delivery difficult. Too much nitrogen can lead to waste, while too little can result in incomplete oxygen removal and potentially cause substandard dairy product quality. Utility Model Content

[0003] To address the problem that existing methods for precisely controlling nitrogen input can lead to nitrogen waste or incomplete oxygen removal, this invention provides an intelligent nitrogen regulating device for dairy products, comprising:

[0004] A tank assembly, comprising a mixing tank, an air inlet pipe, and an exhaust pipe; the air inlet pipe and the exhaust pipe are respectively connected to the mixing tank, and the air inlet pipe and the exhaust pipe are spaced apart along the height direction of the mixing tank;

[0005] A stirring assembly, which is connected to the stirring tank;

[0006] A control assembly includes a controller and an air pump, a first solenoid valve, a second solenoid valve, an oxygen detection sensor, and a third solenoid valve electrically connected to the controller; and a first check valve and a second check valve. The air pump, the first solenoid valve, and the first check valve are respectively disposed on the air inlet pipe; wherein the distance between the first check valve and the mixing tank is less than the distance between the first solenoid valve and the mixing tank; the second solenoid valve, the oxygen detection sensor, the third solenoid valve, and the second check valve are disposed on the exhaust pipe; wherein the oxygen detection sensor is located between the second solenoid valve and the third solenoid valve; the distance between the second check valve and the mixing tank is less than the distance between the third solenoid valve and the mixing tank; the controller is electrically connected to the mixing assembly.

[0007] The control component further includes a pressure sensor; the pressure sensor is disposed on the air inlet pipe; the pressure sensor is disposed between the first solenoid valve and the air pump; the distance between the air pump and the mixing tank is greater than the distance between the first solenoid valve and the mixing tank; the pressure sensor is electrically connected to the controller.

[0008] In some embodiments, the tank assembly further includes a discharge pipe; the discharge pipe is connected to the bottom of the mixing tank; and a gate valve is provided on the discharge pipe.

[0009] In some embodiments, the stirring assembly includes a stirring motor, a stirring shaft, a spiral stirring paddle, and stirring blades; the fixed end of the stirring motor is connected to the stirring tank; the output end of the stirring motor is connected to one end of the stirring shaft; the spiral stirring paddle is spirally arranged along the axial direction of the stirring shaft and is fixedly connected to the stirring shaft; the stirring blades are connected to the end of the stirring shaft away from the stirring motor; and the stirring motor is electrically connected to the controller.

[0010] In some embodiments, the spiral impeller is provided with a plurality of air holes; the air holes extend from one side of the spiral impeller along its thickness direction through the other side of the spiral impeller.

[0011] In some embodiments, the pores are uniformly distributed on the spiral impeller.

[0012] To address the problem that existing methods of precisely controlling nitrogen input can lead to nitrogen waste or incomplete oxygen removal, this invention offers the following advantages:

[0013] Nitrogen gas is introduced into the mixing tank through the gas pump from the inlet pipe. The first solenoid valve and the first one-way valve ensure that nitrogen gas enters the mixing tank in one direction. When nitrogen gas enters the mixing tank, it displaces the oxygen in the dairy products while the mixing components are stirring. The oxygen flows out of the mixing tank from the exhaust pipe, passes through the second one-way valve and the third solenoid valve, and flows to the oxygen detection sensor. The oxygen detection sensor detects the amount of oxygen and uploads the data to the controller, thereby determining whether the oxygen in the mixing tank has been completely purged. This allows for more precise control of the amount of nitrogen gas input, thus solving the problem that existing methods of nitrogen gas input are difficult to control precisely, which may lead to nitrogen waste or incomplete oxygen purging. Attached Figure Description

[0014] Figure 1 A three-dimensional schematic diagram of an intelligent nitrogen regulation device for dairy products;

[0015] Figure 2 A plan view of an intelligent nitrogen regulation device for dairy products;

[0016] Figure 3 for Figure 2 Cross-sectional view along the AA direction;

[0017] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 01, Tank assembly; 11, Mixing tank; 12, Air inlet pipe; 13, Exhaust pipe; 14, Discharge pipe; 15, Gate valve; 02, Mixing assembly; 21, Mixing motor; 22, Mixing shaft; 23, Spiral mixer; 24, Air vent; 25, Mixing blade; 03, Control assembly; 31, Controller; 32, Air pump; 33, Pressure sensor; 34, First solenoid valve; 35, First check valve; 36, Second solenoid valve; 37, Oxygen detection sensor; 38, Third solenoid valve; 39, Second check valve. Detailed Implementation

[0019] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.

[0020] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0021] This embodiment discloses an intelligent nitrogen regulation device for dairy products, such as... Figure 1 , Figure 2 , Figure 3 As shown, it may include:

[0022] Tank assembly 01, the tank assembly 01 includes a mixing tank 11, an air inlet pipe 12, and an exhaust pipe 13; the air inlet pipe 12 and the exhaust pipe 13 are respectively connected to the mixing tank 11, and the air inlet pipe 12 and the exhaust pipe 13 are spaced apart along the height direction of the mixing tank 11;

[0023] A stirring assembly 02 is connected to the stirring tank 11.

[0024] The control component 03 includes a controller 31 and an air pump 32, a first solenoid valve 34, a second solenoid valve 36, an oxygen detection sensor 37, a third solenoid valve 38, and a first one-way valve 35 and a second one-way valve 39, all electrically connected to the controller 31. The air pump 32, the first solenoid valve 34, and the first one-way valve 35 are respectively disposed on the air inlet pipe 12. The distance between the first one-way valve 35 and the mixing tank 11 is less than the distance between the first solenoid valve 34 and the mixing tank 11. The second solenoid valve 36, the oxygen detection sensor 37, the third solenoid valve 38, and the second one-way valve 39 are disposed on the exhaust pipe 13. The oxygen detection sensor 37 is located between the second solenoid valve 36 and the third solenoid valve 38. The distance between the second one-way valve 39 and the mixing tank 11 is less than the distance between the third solenoid valve 38 and the mixing tank 11. The controller 31 is electrically connected to the mixing component 02.

[0025] In this embodiment, as Figure 1 , Figure 2 As shown, the intelligent nitrogen regulating device for dairy products includes a tank assembly 01, which includes a stirring tank 11, an air inlet pipe 12, and an exhaust pipe 13. The air inlet pipe 12 and the exhaust pipe 13 are respectively connected to the stirring tank 11, and are spaced apart along the height of the stirring tank 11. In this embodiment, the air inlet pipe 12 is located below the stirring tank 11, and the exhaust pipe 13 is located above the stirring tank 11. One end of the air inlet pipe 12 is connected to the stirring tank 11, and the other end is connected to a container containing nitrogen (Figure 1). (Not shown in the image) is connected; and, as those skilled in the art will know, in order to input and discharge dairy products into the mixing tank 11, the mixing tank 11 is provided with other pipes for material input and material discharge, and valves should also be installed on the corresponding pipes; in this embodiment, the function of the mixing tank 11 can be understood as a tank for the crystallization of dairy products (e.g., lactose). Since the crystallization of dairy products is not closely related to the technical problem solved by this utility model, the specific crystallization process of dairy products will not be described in detail in this utility model.

[0026] like Figure 2 , Figure 3 As shown, the stirring assembly 02 is connected to the stirring tank 11; in this embodiment, the stirring assembly 02 is used to stir the dairy products in the stirring tank 11, so that the nitrogen in the dairy products can accelerate the replacement of the oxygen in the dairy products.

[0027] In this embodiment, the control component 03 includes a controller 31 and an air pump 32, a first solenoid valve 34, a second solenoid valve 36, an oxygen detection sensor 37, a third solenoid valve 38, and a first one-way valve 35 and a second one-way valve 39, all electrically connected to the controller 31. The air pump 32, the first solenoid valve 34, and the first one-way valve 35 are respectively disposed on the air inlet pipe 12. The distance between the first one-way valve 35 and the mixing tank 11 is greater than the distance between the first solenoid valve 34 and the mixing tank 11. The second solenoid valve 36, the oxygen detection sensor 37, the third solenoid valve 38, and the second one-way valve 39 are disposed on the exhaust pipe 13. The oxygen detection sensor 37 is located between the second solenoid valve 36 and the third solenoid valve 38. The distance between the second one-way valve 39 and the mixing tank 11 is greater than the distance between the third solenoid valve 38 and the mixing tank 11. Nitrogen gas is introduced into the mixing tank 11 from the air inlet pipe 12 by the air pump 32, and under the stirring of the mixing component 02, Nitrogen can quickly displace oxygen from dairy products, and the first solenoid valve 34 and the first one-way valve 35 ensure that nitrogen enters the mixing tank 11 in one direction. In this embodiment, the first one-way valve 35 is configured to allow nitrogen in the inlet pipe 12 to flow unidirectionally into the mixing tank 11, and to prevent fluid in the mixing tank 11 from flowing through the inlet pipe 12 via the first one-way valve 35. In this embodiment, the second one-way valve 39 is configured to allow gas in the mixing tank 11 to flow unidirectionally through the exhaust pipe 13 and be discharged from the exhaust pipe 13. When nitrogen enters the mixing tank 11, and the mixing component 02 is mixing the dairy product, the nitrogen can displace the oxygen in the dairy product, and the oxygen flows out of the mixing tank 11 from the exhaust pipe 13. In this embodiment, when the oxygen in the mixing tank 11 is being displaced, the second solenoid valve 36 is in the open state, and when the oxygen in the mixing tank 11 is completely displaced, the second solenoid valve 36 is in the closed state to prevent external oxygen from entering the exhaust pipe 13 and to avoid the oxygen detection sensor 37 detecting external oxygen and causing information uploading errors.

[0028] In this embodiment, although the molecular mass of oxygen is larger than that of nitrogen, the amount of nitrogen is relatively larger than that of oxygen. Since both oxygen and nitrogen are gases under normal conditions, those skilled in the art can imagine that when the amount of nitrogen is large and the amount of oxygen is small, nitrogen can displace the oxygen in the dairy product. After the oxygen is displaced, it flows through the second one-way valve 39 and the third solenoid valve 38 to the oxygen detection sensor 37. The oxygen detection sensor 37 detects the amount of oxygen and uploads the data to the controller 31, thereby determining whether the oxygen in the mixing tank 11 has been completely discharged. This achieves more precise control of the amount of nitrogen input, thus solving the problem that the existing nitrogen input is difficult to control precisely, which may lead to nitrogen waste or incomplete oxygen discharge.

[0029] In this embodiment, those skilled in the art will understand that the controller 31 includes a data receiving module (not shown in the figure) capable of receiving signals uploaded by the oxygen detection sensor 37, and a control module (not shown in the figure) for controlling the operation of the first solenoid valve 34, the second solenoid valve 36, the third solenoid valve 38, and the gas pump 32. The data receiving module can feed back the received signals to the control module for analysis and judgment. The control module should also include a power supply module (not shown in the figure), which can provide electrical energy to the control module, the data receiving module, the first solenoid valve 34, the second solenoid valve 36, and the gas pump 32. The power supply method of the power supply module is controlled by the control module. In this embodiment, those skilled in the art will understand that the structure of the controller 31 described in this utility model is only schematically described. The controller 31 may also include other modules that enable the controller 31 to achieve the functions required in this utility model. In this embodiment, the control module may be a microcontroller or PLC with a preset control program.

[0030] In some embodiments, such as Figure 1 , Figure 2 As shown, the control component 03 further includes a pressure sensor 33; the pressure sensor 33 is disposed on the air inlet pipe 12; the pressure sensor 33 is disposed between the first solenoid valve 34 and the air pump 32; the distance between the air pump 32 and the mixing tank 11 is greater than the distance between the first solenoid valve 34 and the mixing tank 11; the pressure sensor 33 is electrically connected to the controller 31.

[0031] In this embodiment, as Figure 1 , Figure 2 As shown, the control component 03 also includes a pressure sensor 33; the pressure sensor 33 is disposed on the air inlet pipe 12; in this embodiment, the pressure sensor 33 is used to detect the pressure value of nitrogen in the gas delivery pipe. The pressure sensor 33 can upload the detected nitrogen pressure signal to the controller 31. Since the power of the gas delivery pump 32 is fixed, those skilled in the art know that, with a fixed inner diameter of the gas delivery pipe, the amount of nitrogen delivered per unit time can be determined by judging the nitrogen pressure value; by cooperating with the oxygen detection signal uploaded by the oxygen detection sensor 37, when the amount of oxygen is low, the amount of nitrogen entering the mixing tank 11 can be reduced accordingly by controlling the rotation angle of the first solenoid valve 34, thereby avoiding the waste of nitrogen resources caused by excessive nitrogen entering the atmosphere when the oxygen is completely discharged. In this embodiment, the pressure sensor 33 is disposed between the first solenoid valve 34 and the gas delivery pump 32; the distance between the gas delivery pump 32 and the mixing tank 11 is greater than the distance between the first solenoid valve 34 and the mixing tank 11.

[0032] In some embodiments, such as Figure 1 , Figure 2 , Figure 3 As shown, the tank assembly 01 also includes a discharge pipe 14; the discharge pipe 14 is connected to the bottom of the mixing tank 11; and a gate valve 15 is provided on the discharge pipe 14.

[0033] In this embodiment, as Figure 1 , Figure 2 , Figure 3 As shown, the tank assembly 01 also includes a discharge pipe 14; the discharge pipe 14 is connected to the bottom of the mixing tank 11; a gate valve 15 is provided on the discharge pipe 14. When it is necessary to discharge the dairy products in the mixing tank 11, the gate valve 15 can be opened to discharge the dairy products. Those skilled in the art will know that the discharge of dairy products should be carried out in a sterile environment, and the discharge pipe 14 is preferably located at the bottom of the mixing tank 11, while an inlet pipe (not shown in the figure) for feeding dairy products into the mixing tank 11 can be provided at the upper part of the mixing tank 11.

[0034] In some embodiments, such as Figure 2 , Figure 3 As shown, the stirring assembly 02 includes a stirring motor 21, a stirring shaft 22, a spiral stirring paddle 23, and a stirring blade 25; the fixed end of the stirring motor 21 is connected to the stirring tank 11; the output end of the stirring motor 21 is connected to one end of the stirring shaft 22; the spiral stirring paddle 23 is spirally arranged along the axial direction of the stirring shaft 22 and is fixedly connected to the stirring shaft 22; the stirring blade 25 is connected to the end of the stirring shaft 22 away from the stirring motor 21; the stirring motor 21 is electrically connected to the controller 31.

[0035] In this embodiment, the fixed end of the stirring motor 21 is connected to the stirring tank 11; the output end of the stirring motor 21 is connected to one end of the stirring shaft 22, and a sealing treatment is applied at the fixed connection. The spiral stirring paddle 23 is spirally arranged along the axial direction of the stirring shaft 22 and is fixedly connected to the stirring shaft 22. In this embodiment, the spiral stirring paddle 23 can rotate clockwise or counterclockwise, or rotate clockwise for a certain period of time and counterclockwise for a certain period of time, so that the nitrogen in the dairy product can more completely replace the oxygen. The stirring blade 25 is connected to the end of the stirring shaft 22 away from the stirring motor 21. The stirring blade 25 is U-shaped, and the stirring shaft 22 is connected to the middle of the stirring blade 25.

[0036] In some embodiments, such as Figure 2 , Figure 3As shown, the spiral stirring paddle 23 is provided with a plurality of air holes 24; the air holes 24 extend from one side of the spiral stirring paddle 23 along its thickness direction to the other side. In this embodiment, by providing a plurality of air holes 24 on the spiral stirring paddle, the dairy product can flow through the air holes 24 during the rotation of the spiral stirring paddle 23, thereby increasing the disturbance of the dairy product and accelerating the replacement of oxygen by nitrogen. The air holes 24 are preferably evenly distributed on the spiral stirring paddle 23.

[0037] The working principle of this utility model is as follows:

[0038] When it is necessary to remove oxygen from the dairy products in the mixing tank 11, the controller 31 opens the first solenoid valve 34, the gas pump 32, the second solenoid valve 36, the third solenoid valve 38, and the stirring motor 21. The gas pump 32 delivers nitrogen from the air inlet pipe 12 into the mixing tank 11. Under the action of the spiral stirring paddle 23, the nitrogen accelerates the replacement of oxygen in the dairy products. The oxygen flows through the exhaust pipe 13 and passes through the oxygen detection sensor 37. The oxygen detection sensor 37 uploads the detected oxygen content to the controller 31. When the oxygen content is at the preset value, the controller 31 closes the first solenoid valve 34, the gas pump 32, the second solenoid valve 36, the third solenoid valve 38, and the stirring motor 21, thereby removing oxygen from the dairy products.

[0039] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this disclosure.

Claims

1. An intelligent nitrogen regulation device for dairy products, characterized in that, include: A tank assembly, comprising a mixing tank, an air inlet pipe, and an exhaust pipe; the air inlet pipe and the exhaust pipe are respectively connected to the mixing tank, and the air inlet pipe and the exhaust pipe are spaced apart along the height direction of the mixing tank; A stirring assembly, which is connected to the stirring tank; A control assembly includes a controller and an air pump, a first solenoid valve, a second solenoid valve, an oxygen detection sensor, and a third solenoid valve electrically connected to the controller; and a first check valve and a second check valve. The air pump, the first solenoid valve, and the first check valve are respectively disposed on the air inlet pipe; wherein the distance between the first check valve and the mixing tank is less than the distance between the first solenoid valve and the mixing tank; the second solenoid valve, the oxygen detection sensor, the third solenoid valve, and the second check valve are disposed on the exhaust pipe; wherein the oxygen detection sensor is located between the second solenoid valve and the third solenoid valve; the distance between the second check valve and the mixing tank is less than the distance between the third solenoid valve and the mixing tank; the controller is electrically connected to the mixing assembly.

2. The intelligent nitrogen regulating device for dairy products according to claim 1, characterized in that, The control component further includes a pressure sensor; the pressure sensor is disposed on the air inlet pipe; the pressure sensor is disposed between the first solenoid valve and the air pump; the distance between the air pump and the mixing tank is greater than the distance between the first solenoid valve and the mixing tank; the pressure sensor is electrically connected to the controller.

3. The intelligent nitrogen regulating device for dairy products according to claim 1, characterized in that, The tank assembly also includes a discharge pipe; the discharge pipe is connected to the bottom of the mixing tank; and a gate valve is provided on the discharge pipe.

4. The intelligent nitrogen regulating device for dairy products according to claim 1, characterized in that, The mixing assembly includes a mixing motor, a mixing shaft, a spiral mixing blade, and mixing vanes; the fixed end of the mixing motor is connected to the mixing tank; the output end of the mixing motor is connected to one end of the mixing shaft; the spiral mixing blade is spirally arranged along the axial direction of the mixing shaft and is fixedly connected to the mixing shaft; the mixing vanes are connected to the end of the mixing shaft away from the mixing motor; the mixing motor is electrically connected to the controller.

5. The intelligent nitrogen regulating device for dairy products according to claim 4, characterized in that, The spiral impeller is provided with multiple air holes; the air holes extend from one side of the spiral impeller along its thickness direction and penetrate to the other side of the spiral impeller.

6. The intelligent nitrogen regulating device for dairy products according to claim 5, characterized in that... The pores are evenly distributed on the spiral agitator.

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