Differential pressure puffing equipment for crisp cod fish
By introducing a composite trajectory motion of rotational motion and axial displacement, along with the penetration of functional fluid media, into the cod crisp differential pressure puffing equipment, the problems of insufficient dynamic contact and incomplete penetration in existing equipment are solved, achieving uniform puffing of cod crisps and effective encapsulation of flavor components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINJIANG LONGXIANG FOOD CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-22
AI Technical Summary
Existing cod crisp pressure differential puffing equipment cannot achieve dynamic contact between the material and the heat transfer medium during the high temperature and high pressure stage, resulting in a significant axial temperature gradient in the tank. Furthermore, the static permeation method is difficult to break through the cod muscle fiber barrier, and flavor molecules only adhere to the surface of the material and are easily dispersed.
A pressure differential puffing device for cod crisps was designed. By setting a guiding structure and storage components in the high-temperature pressure differential puffing tank, a composite trajectory motion of rotational motion and axial displacement is achieved. The pressure penetration of functional fluid medium and the relative rotational motion of the paddle are used to promote the penetration and encapsulation of flavor substances in cod tissue.
This process achieves three-dimensional dynamic contact between cod raw materials and the heat transfer medium, eliminating temperature gradients and promoting the directional penetration and diffusion of flavor molecules within muscle fibers. This forms a uniform microporous structure, creating ideal thermodynamic conditions for subsequent puffing and ensuring the gradient encapsulation of flavor substances within the puffing pores.
Smart Images
Figure CN224265508U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of puffing technology, specifically a pressure differential puffing device for codfish crisps. Background Technology
[0002] The differential pressure puffing process for codfish crisps achieves tissue puffing through high-temperature and high-pressure medium penetration and instantaneous pressure reduction. Equipment based on this principle is the existing differential pressure puffing equipment for codfish crisps.
[0003] A search revealed that Chinese utility model patent application with publication number "CN214229818U" proposes "a novel temperature-differential pressure expansion device." Through a valve on the second pipeline, a differential pressure transmitter on the third pipeline, and a fifth pipeline on the fourth pipeline, the device can not only use the valve on the second pipeline to divert the gas in the vacuum tank by opening and closing the valve, allowing the gas to act on two expansion chambers or one expansion chamber simultaneously, but also use the differential pressure transmitter on the third pipeline to regulate the differential pressure.
[0004] However, in actual use, the aforementioned disclosed device and similar existing devices cannot achieve dynamic contact between the material and the heat transfer medium during the high temperature and high pressure stage, resulting in a significant temperature gradient along the axial direction of the tank. Secondly, the static permeation method is difficult to break through the cod muscle fiber barrier, and flavor molecules can only adhere to the surface of the material, which is easily dissipated with the steam during the subsequent depressurization and puffing process. Utility Model Content
[0005] The purpose of this invention is to provide a pressure differential puffing device for codfish crisps to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure differential puffing device for cod crisping, comprising: a high-temperature pressure differential puffing tank, used for puffing cod tissue at high temperature.
[0007] The high-temperature differential pressure expansion tank has an integrated guide structure in the middle section of its inner wall. The high-temperature differential pressure expansion tank is equipped with a storage component through the guide structure. The storage component is used to hold the cod raw material.
[0008] By using an external drive device to work in conjunction with the storage component, the storage component can achieve a combined trajectory motion of rotation and axial displacement along the guide structure inside the high-temperature pressure differential expansion tank.
[0009] The high-temperature differential pressure expansion tank has a paddle installed in the tank opening area, while the far end of the tank opening area is filled with a functional fluid medium. The functional fluid medium penetrates the cod tissue with flavor substances through pressure osmosis.
[0010] During the operation of the drive unit, the storage component is axially displaced inside the high-temperature pressure differential expansion tank. The resulting pressure gradient causes the fluid medium to penetrate into the interior of the storage component. The synchronous rotational motion causes the paddle and the storage component to rotate relative to each other, thereby completing the dual processing of cod tissue expansion modification and flavor component encapsulation.
[0011] Furthermore, the guide structure includes either an internal thread section or a helical guide groove, and the drive device, corresponding to the guide structure, includes either a servo motor or an electric hydraulic press.
[0012] Furthermore, the storage component includes: a hinge base, one side of which is rotatably connected to the shaft of the drive device along its central axis; the outer surface of the hinge base is adapted to the guide structure; and a storage container is fixed to the end of the hinge base away from the drive device, the storage container being used to store cod tissue.
[0013] Furthermore, an internally threaded pipe is fixed to the inner wall of the high-temperature differential pressure expansion tank at the tank opening. The high-temperature differential pressure expansion tank is equipped with a material valve for sealing the high-temperature differential pressure expansion tank through the internally threaded pipe. The shaft of the actuating paddle is fixed at the axial position of one end of the material valve located inside the high-temperature differential pressure expansion tank.
[0014] Furthermore, the surface of the hinge seat is provided with several material passage holes, and the high temperature differential pressure expansion tank is fixed with a packing valve tube at the top away from the tank opening area. The packing valve tube is used to fill with functional fluid medium. The high temperature differential pressure expansion tank is fixed with a drain valve tube at the bottom of the tank opening area. The drain valve tube is used to release excess functional fluid medium.
[0015] Furthermore, a placement rack is fixed to the bottom of the surface of the high-temperature differential pressure expansion tank, and a hydraulic base for mounting the drive device is fixed to one end of the placement rack. A control terminal is installed on one end of the surface of the hydraulic base, and the control terminal is used to control the high-temperature differential pressure expansion tank and the drive device.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This cod crisp differential pressure puffing equipment uses a storage component to perform a combined trajectory motion of rotation and axial displacement within a high-temperature differential pressure puffing tank, enabling the cod raw material to achieve three-dimensional dynamic contact with the heat transfer medium. By utilizing the periodic pressure fluctuations formed during the axial displacement process, the axial temperature gradient of the tank caused by traditional static permeation is effectively eliminated.
[0018] In addition, through the synergistic effect of pressure gradient and mechanical motion, the functional fluid medium forms a directional permeation flow inside the cod muscle fibers. With the help of the relative motion generated by the rotation of the storage component and the paddle, a turbulent effect is formed on the surface of the material, which accelerates the diffusion of flavor molecules into the fiber gaps.
[0019] Furthermore, the shear stress generated by the combined motion promotes the formation of a uniform microporous structure in the cod tissue, creating ideal thermodynamic conditions for subsequent instantaneous depressurization puffing. By utilizing the dynamic matching mechanism between the material passage and the pressure gradient, the flavor substances are encapsulated in the puffing pores in a gradient manner. Attached Figure Description
[0020] Figure 1 This is an isometric drawing of the present invention;
[0021] Figure 2 This is a main cross-sectional view of the present invention;
[0022] Figure 3 This is a structural feature diagram of the high-temperature differential pressure expansion tank of this utility model.
[0023] In the diagram: 1. Hydraulic base; 2. Control terminal; 3. Electric hydraulic press; 4. Packing valve pipe; 5. High temperature differential pressure expansion tank; 6. Material valve; 7. Drain valve pipe; 8. Placement rack; 9. Hinge seat; 10. Internal threaded pipe; 11. Actuator; 12. Storage container; 13. Through hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Before understanding the technical solution proposed in this application, it should be clear that the high temperature differential pressure expansion tank 5 proposed in this application is an existing device well known to those skilled in the art, and the feature structure proposed in this application is mainly based on the high temperature differential pressure expansion tank 5 with improvements.
[0026] For details, please refer to Figures 1 to 3 It is known that the product includes: a high-temperature differential pressure expansion tank 5, which is used to expand cod tissue at high temperature. The high-temperature differential pressure expansion tank 5 is made of 316L stainless steel and the working temperature range is set to 120-180℃. A spiral guide structure is integrated in the middle section of the inner wall of the high-temperature differential pressure expansion tank 5. The guide structure is surface hardened and coated with a polytetrafluoroethylene wear-resistant layer. The high-temperature differential pressure expansion tank 5 is equipped with a storage component through the guide structure. The storage component is used to hold the cod raw material.
[0027] It should be noted that the external drive device works in conjunction with the storage component to enable the storage component to achieve a combined rotational and axial displacement trajectory within the high-temperature differential pressure expansion tank 5 along the guide structure. Furthermore, an actuating paddle 11 is installed inside the high-temperature differential pressure expansion tank 5 at the tank opening. The actuating paddle 11 is made of titanium alloy and has a three-dimensional curved surface structure, forming a 15° angle with the tank axis. The distal opening area of the high-temperature differential pressure expansion tank 5 is filled with a functional fluid medium, which is a mixture of food-grade propylene glycol and flavor extract in a 7:3 ratio. This fluid medium penetrates the cod tissue through pressure osmosis to infuse flavor substances. During the operation of the drive device, the axial displacement of the storage component within the high-temperature differential pressure expansion tank 5 generates a pressure gradient, prompting the functional fluid medium to penetrate into the storage component. Simultaneously, the rotational motion creates a relative speed difference between the actuating paddle 11 and the storage component. The shearing effect created by this relative speed difference causes the cod tissue fibers to develop a microporous structure, thus completing the dual processing of cod tissue expansion modification and flavor component encapsulation.
[0028] As a preferred embodiment, in this embodiment, the guide structure includes either an internal thread section or a spiral guide groove. The internal thread section adopts a trapezoidal thread design to improve the structural load-bearing capacity, while the spiral guide groove is equipped with a self-lubricating coating to reduce friction loss. The drive device corresponds to the guide structure and includes either a servo motor or an electric hydraulic press 3. The servo motor is equipped with a high-precision encoder to achieve positioning accuracy, and the electric hydraulic press 3 integrates a pressure feedback module to ensure that the output force value is stable in the range of 800-1200N. In addition, in this embodiment, the storage component includes: a hinge seat 9 made of high-strength aluminum alloy casting, with a needle roller bearing assembly in its inner cavity. The central axis of one side is rotatably connected to the shaft of the drive device and equipped with a limit ring. The outer surface of the hinge seat 9 is anodized to form a 0.05mm hard oxide layer, which is adapted to the guide structure to form a clearance fit. The end of the hinge seat 9 away from the drive device is fixed with a storage container 12 by a hexagonal flange bolt.
[0029] It should also be noted that, in this embodiment, the surface of the hinge seat 9 is provided with several material passage holes 13, the high temperature differential pressure expansion tank 5 is fixed with a packing valve pipe 4 at the top away from the tank opening area, the packing valve pipe 4 is used to fill with functional fluid medium, and the high temperature differential pressure expansion tank 5 is fixed with a drain valve pipe 7 at the bottom of the tank opening area, the drain valve pipe 7 is used to release excess functional fluid medium.
[0030] In a preferred embodiment, the inner wall of the high-temperature differential pressure expansion tank 5 is precision-machined into a stepped socket structure at the tank opening. A 316L stainless steel internally threaded pipe 10 is fixed to the stepped socket structure via argon arc welding. The high-temperature differential pressure expansion tank 5 is equipped with a material valve 6 for sealing the tank via the internally threaded pipe 10. The shaft of the actuating paddle 11 is fixed axially at one end of the material valve 6 inside the high-temperature differential pressure expansion tank 5 via a flange coupling. Furthermore, the bottom of the surface of the high-temperature differential pressure expansion tank 5 is fixed with a bolted I-beam welded mounting frame 8. One end of the mounting frame 8 is fitted with a hydraulic base 1 for mounting the drive unit via a locating pin. One end of the hydraulic base 1 is fitted with a control terminal 2 with an IP65 protection rating. The control terminal 2 integrates an industrial touchscreen and simultaneously controls the temperature PID adjustment module of the high-temperature differential pressure expansion tank 5 and the variable frequency speed control unit of the drive unit via the Modbus protocol. Its built-in safety interlock program can monitor the pressure status inside the tank in real time.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A pressure differential puffing device for codfish crisps, comprising: A high-temperature differential pressure puffing tank (5), used for puffing cod tissue at high temperature, is characterized by: The high temperature differential pressure expansion tank (5) has an integrated guide structure in the middle section of its inner wall. The high temperature differential pressure expansion tank (5) is equipped with a storage component through the guide structure. The storage component is used to hold cod raw materials. By using an external drive device to coordinate with the storage component, the storage component can achieve a composite trajectory motion of rotation and axial displacement along the guide structure inside the high temperature differential pressure expansion tank (5). The high-temperature differential pressure expansion tank (5) has a paddle (11) installed in the tank opening area, and the far end of the tank opening area of the high-temperature differential pressure expansion tank (5) is filled with a functional fluid medium. The functional fluid medium performs flavor substance infiltration treatment on the cod tissue through pressure osmosis. During the operation of the drive unit, the storage component is axially displaced in the high-temperature pressure differential expansion tank (5). The resulting pressure gradient causes the fluid medium to penetrate into the storage component. The synchronous rotational motion causes the paddle (11) to form a relative rotational motion with the storage component, thereby completing the dual processing of cod tissue expansion modification and flavor component encapsulation.
2. The pressure differential puffing equipment for codfish crisps according to claim 1, characterized in that: The guide structure includes either an internal thread section or a spiral guide groove. The drive device corresponds to the guide structure and includes either a servo motor or an electric hydraulic press (3).
3. The pressure differential puffing equipment for codfish crisps according to claim 1, characterized in that: The storage component includes: a hinge seat (9), one side of which is rotatably connected to the shaft of the drive device along its central axis. The outer surface of the hinge seat (9) is adapted to the guide structure. A storage container (12) is fixed to one end of the hinge seat (9) away from the drive device. The storage container (12) is used to store cod tissue.
4. The pressure differential puffing equipment for codfish crisps according to claim 3, characterized in that: The inner wall of the high temperature differential pressure expansion tank (5) is fixed with an internal threaded pipe (10). The high temperature differential pressure expansion tank (5) is equipped with a material valve (6) for sealing the high temperature differential pressure expansion tank (5) through the internal threaded pipe (10). The shaft of the agitator (11) is fixed at the axial position of one end of the material valve (6) inside the high temperature differential pressure expansion tank (5).
5. The pressure differential puffing equipment for codfish crisps according to claim 3, characterized in that: The hinge seat (9) has several material passage holes (13) on its surface. The high temperature differential pressure expansion tank (5) has a packing valve pipe (4) fixed at the top of the area away from the tank opening. The packing valve pipe (4) is used to fill the functional fluid medium. The high temperature differential pressure expansion tank (5) has a drain valve pipe (7) fixed at the bottom of the tank opening area. The drain valve pipe (7) is used to release excess functional fluid medium.
6. The pressure differential puffing equipment for codfish crisps according to claim 1, characterized in that: A placement rack (8) is fixed to the bottom of the surface of the high temperature differential pressure expansion tank (5). A hydraulic base (1) for mounting the drive device is fixed to one end of the placement rack (8). A control terminal (2) is installed on one end of the surface of the hydraulic base (1). The control terminal (2) is used to control the high temperature differential pressure expansion tank (5) and the drive device.