A continuous industrial freezing apparatus

Abstract

The utility model discloses a kind of continuous industrial freeze-condensing devices, including glue liquid storage tank, cooling liquid storage tank and freeze-condensing device, inner heat exchange pipe and outer heat exchange pipe are equipped in freeze-condensing device, the import end of inner heat exchange pipe is located at the outside of outer heat exchange pipe, the export end of inner heat exchange pipe is located at the inside of outer heat exchange pipe and there is preset distance with the export end of outer heat exchange pipe;Glue liquid storage tank is connected with the import end of inner heat exchange pipe by glue liquid conveying pipe and can be connected and disconnected, cooling liquid storage tank is connected with the import end of outer heat exchange pipe by cooling liquid conveying pipe and can be connected and disconnected;First conveying pump is equipped on glue liquid conveying pipe, second conveying pump is equipped on cooling liquid conveying pipe, glue liquid storage tank is also connected with glue liquid return pipe, and glue liquid return pipe can be connected and disconnected and connected on glue liquid conveying pipe.The utility model effectively solves the problem that current artificial production freeze-condensing hygiene is poor, production capacity is less, only applicable to small batch production, cannot meet the demand of industrial grade mass production.

Description

Technical Field

[0001] This utility model relates to the field of freezing production, and in particular to a continuous industrial freezing device. Background Technology

[0002] With the rapid rise of street food drinks, large-particle gels that provide a soft, smooth, and chewy texture are becoming increasingly popular. Currently, the gels commonly used in street food drinks are mostly added to products after employees dissolve the gelling agent in hot water on-site, cool it to room temperature, and then add it. This process is mostly manual and in an open system, resulting in generally poor hygiene and suitability only for small-batch, continuous production. Current production methods cannot meet the continuous, large-scale industrial demand for gel raw materials, or their production efficiency is too low. Utility Model Content

[0003] The purpose of this invention is to provide a continuous industrial freezing device that effectively solves the problems of poor hygiene, low production volume, and suitability only for small-batch production in existing manual freezing processes, which cannot meet the needs of large-scale industrial production.

[0004] The purpose of this utility model is achieved as follows: a continuous industrial freezing device includes a glue storage tank, a coolant storage tank, and a freezer. The freezer contains an inner heat exchange tube and an outer heat exchange tube arranged in an inner-outer jacket configuration. The inlet end of the inner heat exchange tube is located outside the outer heat exchange tube, and the outlet end of the inner heat exchange tube is located inside the outer heat exchange tube and is at a predetermined distance from the outlet end of the outer heat exchange tube. The glue storage tank is connected to the inlet end of the inner heat exchange tube via a glue delivery pipe, and the coolant storage tank is connected to the inlet end of the outer heat exchange tube via a coolant delivery pipe. The outlet end of the outer heat exchange tube constitutes the freezing outlet. A first delivery pump is installed on the glue delivery pipe, and a second delivery pump is installed on the coolant delivery pipe. A glue return pipe is also connected to the glue storage tank and is connected to the glue delivery pipe in a switchable manner.

[0005] In a preferred embodiment of the present invention, the external heat exchange tube includes a zigzag bend formed by connecting multiple inclined straight tubes in sequence, with a preset angle between two adjacent inclined straight tubes. The shape of the part of the internal heat exchange tube located inside the external heat exchange tube matches the shape of the external heat exchange tube. The inlet end of the internal heat exchange tube is sealed and exits through the side of the inclined straight tube near the inlet end of the external heat exchange tube.

[0006] In a preferred embodiment of this utility model, the included angle between two adjacent inclined straight pipes is a right angle.

[0007] In a preferred embodiment of this utility model, heat insulation jackets are provided on the outer wall of the adhesive storage tank, the outer side of the adhesive delivery pipe, and the outer wall of the adhesive return pipe.

[0008] In a preferred embodiment of this utility model, a first valve and a second valve are respectively provided on the adhesive delivery pipe near the adhesive storage tank and near the freezer, a third valve is provided on the adhesive return pipe, and a fourth valve is provided on the coolant delivery pipe near the freezer.

[0009] In a preferred embodiment of this utility model, a first flow meter is provided on the adhesive delivery pipe, and a second flow meter is provided on the coolant delivery pipe.

[0010] In a preferred embodiment of this utility model, the continuous industrial freezing device further includes a controller, and the first valve and the fourth valve are both proportional valves; the controller is connected to the first flow meter, the second flow meter, the first delivery pump, the second delivery pump, the first valve and the fourth valve, and can control the pumping flow rate of the first delivery pump and the second delivery pump, as well as the valve opening degree of the first valve and the fourth valve, according to the data detected by the first flow meter and the second flow meter.

[0011] In a preferred embodiment of this utility model, the outlet end of the external heat exchanger is connected to the freezing storage tank via a temporary storage and conveying pipe, and the outlet end of the external heat exchanger is also connected to the discharge pipe.

[0012] In a preferred embodiment of this utility model, the continuous industrial freezing device further includes a main pipe. The first end of the main pipe is used to inject cleaning liquid or steam. The main pipe is connected to the glue storage tank, the coolant storage tank and the freezing temporary storage tank through three branch pipes. A circulation return pipe is also connected to the outlet end of the external heat exchange tube. The circulation return pipe is connected to the second end of the main pipe and a return pump is provided on the circulation return pipe.

[0013] In a preferred embodiment of this utility model, a fifth valve is provided on the temporary storage and conveying pipe, a sixth valve is provided on the discharge pipe, a seventh valve is provided on the circulation return pipe near the freezer, and an eighth valve is provided on the main pipe near its first end.

[0014] As described above, the continuous industrial freezing device of this invention, through the cooperation of various components, delivers the adhesive and coolant to the inner and outer layers of the heat exchange tube assembly of the freezer via corresponding pipelines. During the co-current flow process, the adhesive is gradually cooled to a freezing state by the coolant and forms a solidified state. The solidified solidified liquid mixes with the coolant at the end of the heat exchange tube assembly to produce the frozen product. This device not only enables large-scale online industrial production of frozen products, but also features a closed system designed to meet the hygiene requirements of food production, ensuring reliable production quality, high production volume, and high efficiency. It effectively solves the problems of poor hygiene, low production volume, and suitability only for small-batch production in existing manual freezing methods, failing to meet the needs of large-scale industrial production. In addition, the device is equipped with an adhesive return pipe. When freezing production is stopped due to abnormal conditions, the adhesive can be returned to the adhesive storage tank and adhesive delivery pipe via the adhesive return pipe, forming an adhesive circulation and effectively avoiding pipeline blockage. Attached Figure Description

[0015] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0016] Figure 1 A schematic diagram of the structure of the continuous industrial freezing device provided by this utility model.

[0017] Explanation of icon numbers:

[0018] 1. Adhesive storage tank; 11. Adhesive delivery pipe; 12. Adhesive return pipe; P1. First delivery pump; VA1. First valve; VA2. Second valve; VA3. Third valve; FT1. First flow meter;

[0019] 2. Coolant storage tank; 21. Coolant delivery pipe; P2. Second delivery pump; VA4. Fourth valve; FT2. Second flow meter;

[0020] 3. Freezer; 31. Inner heat exchange tube; 32. Outer heat exchange tube; 321. Inclined straight tube; 33. Outer shell; 301. Pre-cooling section; 302. Forming section; 303. Mixing section;

[0021] 4. Freezing storage tank; 41. Temporary storage and delivery pipe; VA5. Fifth valve;

[0022] 5. Discharge pipe; VA6. Sixth valve;

[0023] 6. Circulation return pipe; P3. Return pump; VA7. Seventh valve;

[0024] 7. Main pipe; 71. Branch pipe; VA8. Eighth valve;

[0025] 8. Spray head;

[0026] 9. Temperature sensor. Detailed Implementation

[0027] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0028] like Figure 1 As shown, this application provides a continuous industrial freezing device, including a glue storage tank 1, a coolant storage tank 2, and a freezer 3. The freezer 3 is provided with an inner heat exchange tube 31 and an outer heat exchange tube 32 arranged in an inner and outer manner. The inlet end of the inner heat exchange tube 31 is located outside the outer heat exchange tube 32, and the outlet end of the inner heat exchange tube 31 is located inside the outer heat exchange tube 32 and is at a predetermined distance from the outlet end of the outer heat exchange tube 32. The glue storage tank 1 is connected to the inlet end of the inner heat exchange tube 31 in a slewable manner through a glue delivery pipe 11, and the coolant storage tank 2 is connected to the inlet end of the outer heat exchange tube 32 in a slewable manner through a coolant delivery pipe 21. The outlet end of the outer heat exchange tube 32 constitutes the freezing outlet. A first delivery pump P1 is provided on the glue delivery pipe 11, and a second delivery pump P2 is provided on the coolant delivery pipe 21. A glue return pipe 12 is also connected to the glue storage tank 1, and the glue return pipe 12 is connected to the glue delivery pipe 11 in a slewable manner.

[0029] Among them, the adhesive storage tank 1 is mainly used to store the adhesive raw materials, which are the main components of the gel. The coolant storage tank 2 mainly stores the coolant. The coolant can not only cool the adhesive, but also, by adding sweet and sour flavoring agents and stabilizers to the coolant, different flavors and textures of gel can be obtained, while simultaneously enhancing the stability of the gel system.

[0030] The freezer 3 constitutes a heat exchanger. The freezer 3 also includes a shell 33. The outer heat exchange tube 32 and the inner heat exchange tube 31 are both disposed inside the shell 33. The inlet and outlet ends of the outer heat exchange tube 32 and the inlet end of the inner heat exchange tube 31 extend outward from the shell 33. The freezer 3 is a heat exchange tube assembly consisting of an inner heat exchange tube 31 and an outer heat exchange tube 32 arranged in an inner and outer shell. According to the liquid flow direction, it can be divided into three stages: a pre-cooling section 301, a forming section 302, and a mixing section 303. The section of the heat exchange tube assembly near the inlet end of the outer heat exchange tube 32 constitutes the pre-cooling section 301. The pre-cooling section 301 has two inlets (i.e., the inlet end of the outer heat exchange tube 32 and the inlet end of the inner heat exchange tube 31) and is composed of two sleeves with different diameters. The coolant enters from the inlet end of the outer heat exchange tube 32, and the adhesive enters from the inlet end of the inner heat exchange tube 31. The two substances move in the same direction, and the coolant pre-cools the adhesive. After pre-cooling, the mixture enters the molding section 302, where the internal adhesive is cooled by the external coolant and held in place to achieve gelation. The mixing section 303 is no longer a sleeve, but only has an outer heat exchange tube 32. The gel and coolant formed here are fully mixed in the mixing section 303, and the resulting gel is discharged through the outlet end of the external heat exchange tube 32.

[0031] In case of abnormal circumstances and production needs to be suspended, the connection between the adhesive delivery pipe 11 and the internal heat exchange pipe 31 should be cut off, and the adhesive return pipe 12 should be connected to the adhesive delivery pipe 11 so that the adhesive can circulate through the adhesive storage tank 1, the adhesive delivery pipe 11 and the adhesive return pipe 12 to avoid pipeline blockage.

[0032] Therefore, the continuous industrial freezing device of this application, through the cooperation of various components, delivers the adhesive and coolant to the inner and outer layers of the heat exchange tube assembly of the freezer 3 through corresponding pipelines. During the co-current flow process, the adhesive is gradually cooled to a freezing state by the coolant and forms a solid. The solidified solid mixes with the coolant at the end of the heat exchange tube assembly to produce the frozen product. This not only enables large-scale online industrial production of frozen products, but the entire device is also a closed system, designed to meet the hygiene requirements of food production, ensuring reliable production quality, large production volume, and high production efficiency. It effectively solves the problems of poor hygiene, low production volume, and suitability only for small-batch production in existing manual freezing production methods, which cannot meet the needs of large-scale industrial production. In addition, the device is also equipped with an adhesive return pipe 12. When freezing production is stopped due to abnormal conditions, the adhesive return pipe 12 allows the adhesive to return to the adhesive storage tank 1, the adhesive delivery pipe 11, and then back to the adhesive storage tank 1, forming an adhesive circulation and effectively avoiding pipeline blockage.

[0033] In a specific implementation, the external heat exchange tube 32 includes a zigzag bend formed by connecting multiple inclined straight tubes 321 in sequence. There is a preset angle between two adjacent inclined straight tubes 321. The shape of the part of the internal heat exchange tube 31 located inside the external heat exchange tube 32 matches the shape of the external heat exchange tube 32. The inlet end of the internal heat exchange tube 31 is sealed and exits through the side of the inclined straight tube 321 near the inlet end of the external heat exchange tube 32.

[0034] Generally, multiple inclined tubes are integrally formed, with two adjacent inclined straight tubes 321 forming a V-shape, and multiple inclined straight tubes 321 connected in series to form a continuous zigzag shape. The angle between two adjacent inclined straight tubes 321 can be set as needed, for example, according to... Figure 1 The preset included angle shown is a right angle, that is, the angle between the inclined straight tube 321 and the horizontal plane is 45°, and two adjacent inclined straight tubes 321 are symmetrically connected at 45° relative to the middle vertical line. Correspondingly, the portion of the inner heat exchange tube 31 located inside the outer heat exchange tube 32 also forms a continuous zigzag shape. This portion of the inner heat exchange tube 31 near its inlet end protrudes from the side wall of the inclined straight tube 321 near its inlet end in the outer heat exchange tube 32. This protruding portion of the inner heat exchange tube 31 can be arranged according to… Figure 1 The vertically inclined straight tube 321 is shown in the figure.

[0035] The heat exchange tube assembly in the freezer 3 is designed as a continuous zigzag shape, which has a larger heat exchange area than a traditional heat exchanger of the same volume, achieving a more efficient heat exchange capacity and a smaller footprint. Due to the special nature of this process, a freezer 3 with a co-directional and sleeve-tube form was independently designed, which can achieve solidification and freezing while also meeting the subsequent two-phase mixing process, making the equipment more efficient.

[0036] In practical applications, if the adhesive temperature is too low, the adhesive will freeze and lose its fluidity in the adhesive storage tank 1 and pipelines. In this embodiment, in order to keep the adhesive warm, insulation jackets are provided on the outer wall of the adhesive storage tank 1, the outer side of the adhesive delivery pipe 11, and the outer wall of the adhesive return pipe 12. Generally, temperature sensors are also provided on the adhesive storage tank 1, the coolant storage tank 2, and the freezing temporary storage tank 4 to detect the temperature inside the corresponding tank.

[0037] To facilitate the switching on and off of various parts, a first valve VA1 and a second valve VA2 are respectively installed on the adhesive delivery pipe 11 near the adhesive storage tank 1 and near the freezer 3. A third valve VA3 is installed on the adhesive return pipe 12, and a fourth valve VA4 is installed on the coolant delivery pipe 21 near the freezer 3.

[0038] To facilitate the detection of the flow rates of the adhesive and coolant, a first flow meter FT1 is installed on the adhesive delivery pipe 11, and a second flow meter FT2 is installed on the coolant delivery pipe 21. Furthermore, the continuous industrial freezing device also includes a controller; the first valve VA1 and the fourth valve VA4 are both proportional valves. The controller is connected to the first flow meter FT1, the second flow meter FT2, the first delivery pump P1, the second delivery pump P2, the first valve VA1, and the fourth valve VA4, and can control the pumping flow rates of the first delivery pump P1 and the second delivery pump P2, as well as the valve openings of the first valve VA1 and the fourth valve VA4, based on the data detected by the first flow meter FT1 and the second flow meter FT2.

[0039] The second valve VA2 and the third valve VA3 mentioned above can be pneumatic valves, for example, and are also electrically connected to the controller, which is also electrically connected to the temperature sensors mentioned above.

[0040] During operation, different combinations of valves and delivery pumps can achieve two different states: glue production and reflux, ensuring the glue remains in a flowing state and preventing pipe blockage. Combinations of flow meters and proportional valves allow for precise mixing with the coolant, controlling the freezing time and texture. In the forming section 302 of the freezer 3, the glue solidifies and forms under the cooling effect of the coolant. With a fixed pipe diameter, the holding time is adjusted by regulating the feed flow rates of the first delivery pump P1 and the second delivery pump P2, and monitored and fed back by the first flow meter FT1 and the second flow meter FT2.

[0041] Furthermore, the outlet end of the external heat exchanger pipe 32 is connected to the freezing storage tank 4 via the temporary storage and delivery pipe 41, and the outlet end of the external heat exchanger pipe 32 is also connected to the discharge pipe 5.

[0042] The freeze storage tank 4 is responsible for storing the frozen material completed in the previous process for subsequent use. It also discharges the material to the ground through the discharge pipe 5 when the initial production flow is unstable, and it is also responsible for discharging the material to the ground during cleaning. A fifth valve VA5 is installed on the temporary storage conveying pipe 41, and a sixth valve VA6 is installed on the discharge pipe 5 to control the corresponding on / off states.

[0043] Further optionally, in order to facilitate cleaning and sterilization of the entire device, the continuous industrial freezing device also includes a main pipe 7. The first end of the main pipe 7 is used to inject cleaning liquid or steam. The main pipe 7 is connected to the adhesive storage tank 1, the coolant storage tank 2 and the freezing temporary storage tank 4 through three branch pipes 71. A circulation return pipe 6 is also connected to the outlet end of the external heat exchange pipe 32. The circulation return pipe 6 is connected to the second end of the main pipe 7 and a return pump P3 is provided on the circulation return pipe 6.

[0044] One end of each of the three branch pipes 71 is connected to the main pipe 7, and the other end is connected to the top of the corresponding tank. The first end of the adhesive delivery pipe 11 is connected to the bottom of the adhesive storage tank 1, and the second end is connected to the inlet end of the inner heat exchange pipe 31. The first end of the adhesive return pipe 12 is connected to the side wall of the adhesive storage tank 1, and the second end is connected to the adhesive delivery pipe 11 and located between the first delivery pump P1 and the second valve VA2. The first end of the coolant delivery pipe 21 is connected to the bottom of the coolant storage tank 2, and the second end is connected to the inlet end of the outer heat exchange pipe 32. The first end of the temporary storage delivery pipe 41 is connected to the bottom of the freezing temporary storage tank 4, and the second end is connected to the outlet end of the outer heat exchange pipe 32. The first end of the circulating return pipe 6 is connected to the outlet end of the outer heat exchange pipe 32, and the second end is connected in series with the second end of the main pipe 7. The first end of the discharge pipe 5 can be connected to the circulating return pipe 6 and close to the outlet end of the outer heat exchange pipe 32. The second end of the discharge pipe 5 is connected to the outside atmosphere.

[0045] A seventh valve VA7 is installed on the recirculation return pipe 6 near the freezer 3, and an eighth valve VA8 is installed on the main pipe 7 near its first end. Generally, the fifth valve VA5, sixth valve VA6, seventh valve VA7, and eighth valve VA8 can be pneumatic valves and can be electrically connected to the aforementioned controller. The aforementioned return pump P3 is also electrically connected to the controller. Optionally, a spray head 8 can be connected to the end of each branch pipe 71 that extends into the corresponding storage tank.

[0046] More specifically, the operating steps of the entire device are as follows:

[0047] The adhesive raw materials are mixed and then added to adhesive storage tank 1. The coolant is mixed according to requirements such as taste and shelf life and then added to coolant storage tank 2. The specific mixing process is existing technology.

[0048] Under normal production conditions, the first delivery pump P1 for the adhesive and the second delivery pump P2 for the coolant are started simultaneously. The adhesive enters the inner heat exchange tube 31 of the freezer 3 through the adhesive delivery pipe 11, the first valve VA1, and the second valve VA2. The coolant enters the outer heat exchange tube 32 of the freezer 3 through the coolant delivery pipe 21 and the fourth valve VA4. The temperature of the adhesive drops rapidly under the cooling of the coolant, causing it to change from a liquid state to a frozen state, becoming a jelly-like substance. The mixing ratio of the adhesive and the coolant is adjusted by the cooperation of the first delivery pump P1 and the second delivery pump P2, the first valve VA1 and the fourth valve VA4 using proportional valves, and the first flow meter FT1 and the second flow meter FT2, in order to adapt to different types of raw materials and adjust the texture of the frozen substance.

[0049] After freezing, the material flows through mixing section 303 to mix with the coolant. After mixing, it passes through valve VA5 and enters freezing storage tank 4 for later use. During the initial production stage when the production flow is unstable, defective products can be discharged by opening valve VA6 and closing pneumatic valves VA5 and VA7. The frozen material temporarily stored in freezing storage tank 4 can be used as a semi-finished raw material for secondary batching, or directly added to product development as a raw material to improve taste.

[0050] In abnormal conditions, there may be a freezing and production stoppage. Since the adhesive liquid also cools down due to heat exchange with the environment, it may cause pipeline blockage. Therefore, in this embodiment, the pipeline between the adhesive liquid storage tank 1 and the freezer 3 is equipped with an insulation jacket to ensure insulation. In the event of freezing stoppage, the adhesive liquid needs to switch to the bypass (i.e., adhesive liquid return pipe 12) by closing the second valve VA2 and opening the third valve VA3. After bypassing, it returns to the adhesive liquid storage tank 1 to form an adhesive liquid circulation. With the help of the insulation jacket, the temperature of the adhesive liquid is maintained. When the conditions for resuming production are met, the third valve VA3 is closed again and the second valve VA2 is opened to resume production.

[0051] When the entire unit is not in production, it can also undergo CIP cleaning and sterilization, as follows:

[0052] CIP Cleaning Status: During the cleaning status, all valves except the sixth valve VA6 are open. The cleaning fluid enters the adhesive storage tank 1, coolant storage tank 2, and freezing temporary storage tank 4 through the eighth valve VA8. After passing through the spray head 8, the three tanks are cleaned. After cleaning, the water falls from the bottom of the tank due to gravity. After being pressurized by the first transfer pump P1 and the second transfer pump P2, it cleans the freezing device 3. Then, it flows through the freezing outlet, through the return pump P3, and returns to the top of each tank before re-entering each tank, thus achieving cyclic cleaning. After the circulation time is up, the sixth valve VA6 is opened to drain the water.

[0053] Sterilization Status: During sterilization, valve VA6 is pulse-open (e.g., open for 3 seconds and close for 3 seconds, depending on the actual situation), and all other valves are open. Steam continuously enters the system through the pipelines. However, as heat is exchanged between the pipelines and the air, condensate will form inside the pipelines. To maintain the sterilization temperature, valve VA6 needs to be pulse-opened continuously to drain the condensate, thus maintaining the sterilization temperature. To ensure sterility after sterilization, all valves and pumps must be of sterile type, ensuring a sterile production state after sterilization.

[0054] In summary, the continuous industrial freezing apparatus of this embodiment has the following advantages:

[0055] (1) The entire device consists of a raw material preparation section, a gel preparation section and a gel storage section. The raw material preparation section consists of a glue storage tank 1, a coolant storage tank 2, valves, a delivery pump and a flow meter. The gel preparation section mainly consists of a gelator 3, which is divided into three stages: a pre-cooling section 301, a forming section 302 and a mixing section 303. The gel storage section mainly consists of a gel temporary storage tank 4 and a discharge pipe 5. The overall industrial solution can be designed according to food requirements. The system is a closed production system that can meet food production needs such as CIP cleaning and maintain the hygiene of the production process. It is a continuous and industrialized production solution. Through this equipment solution, continuous industrial online production of gel can be realized, and the gel can be used as a semi-finished raw material for secondary batching or directly added to product development as a raw material to improve taste.

[0056] (2) Currently, most gelling products on the market are open systems, produced manually, and their hygiene is greatly affected by the environment. In contrast, the production scheme in this embodiment is a closed system, and the entire production system can be cleaned by CIP, ensuring the hygiene of the production environment. It can also be used in conjunction with automated sterilization equipment to achieve aseptic production of products. The use of automated sterilization equipment mentioned here means that after the gelling product is produced and enters the gelling temporary storage tank 4, it can be added to the corresponding product in the subsequent process flow and sterilized together using the corresponding automated sterilization equipment. Alternatively, the gelling product and the corresponding product can be sterilized separately by the corresponding automated sterilization equipment in the subsequent process flow, and then the sterilized gelling product can be added to the sterilized product.

[0057] (3) Currently, most of the gelling agents used in street beverages are produced in small quantities and batches, which cannot meet the needs of industrial-scale mass production. Based on the industrial production scheme of this embodiment, by adding the glue return pipe 12, glue circulation can be realized. By maintaining the glue circulation, continuous industrial production can be achieved. Furthermore, through the special unidirectional structure design of the gelling device 3, the gelling time can be accurately controlled, thereby indirectly controlling the texture of the gel.

[0058] (4) In the gel production scheme of this embodiment, by adding sweet and sour flavoring agents and stabilizers to the coolant, gels with different tastes and flavors can be obtained, and the stability of the gel system can be enhanced at the same time.

[0059] (5) In this embodiment, the three-section special structure design of the freezer 3 enables the freezing of three different states (pre-cooling section, forming section 302, and mixing section 303) to be completed in one device at one time. Furthermore, the 45° diagonal feeding design maximizes the efficiency of the freezer 3 in the same volume.

[0060] The above are merely illustrative embodiments of this utility model and are not intended to limit the scope of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A continuous industrial freezing device, characterized in that, It includes an adhesive storage tank, a coolant storage tank, and a freezer. The freezer is equipped with an inner heat exchange tube and an outer heat exchange tube arranged in an inner and outer manner. The inlet end of the inner heat exchange tube is located outside the outer heat exchange tube, and the outlet end of the inner heat exchange tube is located inside the outer heat exchange tube and is at a predetermined distance from the outlet end of the outer heat exchange tube. The adhesive storage tank is connected to the inlet end of the inner heat exchange tube via an adhesive delivery pipe, and the coolant storage tank is connected to the inlet end of the outer heat exchange tube via a coolant delivery pipe. The outlet end of the outer heat exchange tube forms a freezing outlet. A first delivery pump is provided on the adhesive delivery pipe, and a second delivery pump is provided on the coolant delivery pipe. An adhesive return pipe is also connected to the adhesive storage tank, and the adhesive return pipe is connected to the adhesive delivery pipe in a way that allows it to be switched on and off.

2. The continuous industrial freezing apparatus as described in claim 1, characterized in that, The external heat exchange tube includes a zigzag bend formed by connecting multiple inclined straight tubes in sequence. There is a preset angle between two adjacent inclined straight tubes. The shape of the part of the internal heat exchange tube located inside the external heat exchange tube matches the shape of the external heat exchange tube. The inlet end of the internal heat exchange tube is sealed and exits through the side of the inclined straight tube near the inlet end of the external heat exchange tube.

3. The continuous industrial freezing apparatus as described in claim 2, characterized in that, The angle between two adjacent inclined straight pipes is a right angle.

4. The continuous industrial freezing apparatus as described in claim 1, characterized in that, Insulation jackets are provided on the outer wall of the adhesive storage tank, the outer side of the adhesive delivery pipe, and the outer wall of the adhesive return pipe.

5. The continuous industrial freezing apparatus as described in claim 1, characterized in that, A first valve and a second valve are respectively provided on the adhesive delivery pipe near the adhesive storage tank and near the freezer. A third valve is provided on the adhesive return pipe, and a fourth valve is provided on the coolant delivery pipe near the freezer.

6. The continuous industrial freezing apparatus as described in claim 5, characterized in that, A first flow meter is also provided on the adhesive delivery pipe, and a second flow meter is provided on the coolant delivery pipe.

7. The continuous industrial freezing apparatus as described in claim 6, characterized in that, The continuous industrial freezing device also includes a controller, wherein the first valve and the fourth valve are both proportional valves; the controller is connected to the first flow meter, the second flow meter, the first delivery pump, the second delivery pump, the first valve and the fourth valve, and can control the pumping flow rate of the first delivery pump and the second delivery pump and the valve opening degree of the first valve and the fourth valve according to the data detected by the first flow meter and the second flow meter.

8. The continuous industrial freezing apparatus as described in claim 1, characterized in that, The outlet end of the external heat exchanger tube is connected to the freezing storage tank via a temporary storage and conveying pipe, and the outlet end of the external heat exchanger tube is also connected to the discharge pipe.

9. The continuous industrial freezing apparatus as described in claim 8, characterized in that, The continuous industrial freezing device also includes a main pipe. The first end of the main pipe is used to inject cleaning fluid or steam. The main pipe is connected to the adhesive storage tank, the coolant storage tank and the freezing temporary storage tank through three branch pipes. A circulation return pipe is also connected to the outlet end of the external heat exchange tube. The circulation return pipe is connected to the second end of the main pipe and a return pump is provided on the circulation return pipe.

10. The continuous industrial freezing apparatus as described in claim 9, characterized in that, A fifth valve is provided on the temporary storage and delivery pipe, a sixth valve is provided on the discharge pipe, a seventh valve is provided on the circulation return pipe near the freezer, and an eighth valve is provided on the main pipe near its first end.

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