An efficient and energy-saving food quick-freezing device

Abstract

The present invention relates to the technical field of quick-freezing devices, and particularly to an energy-efficient food quick-freezing device, which includes a tunnel quick-freezing machine. Inside the tunnel quick-freezing machine, there is a food conveying flat net, and directly above the food conveying flat net, there is a quick-freezing air blower. This food quick-freezing device combines an air inlet component with an air flow stabilizing component to achieve the stable entry of air flow, reduce the air flow impact on the air inlet pipe of the blower, and reduce gas eddy current impacts. In cooperation with the air flow uniform distribution component, it accelerates the uniform distribution of the air flow on the outer periphery of the conical air-receiving platform, optimizes the air flow path, reduces air flow resistance and energy loss. Moreover, a freezing air blower sound-absorbing component is arranged in the rear air outlet cavity of the air inlet pipe of the blower to absorb the gas eddy current noise and improve the noise reduction effect of the blower. The overall device reduces gas eddy current loss and the wear on the blower while reducing the noise of the air flow through multi-stage noise reduction and guiding of the air flow, further improving the stability and efficiency of the blower and reducing energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of quick-freezing devices, and particularly to an energy-efficient food quick-freezing device. Background Art

[0002] Quick-freezing devices are an indispensable part of the food industry, used to quickly cool foods below the freezing point for long-term preservation while maintaining the quality and nutritional value of the foods. With the progress of technology and the increasing requirements of consumers for food quality, the design and manufacture of quick-freezing devices are constantly developing and optimizing. Currently, common quick-freezing equipment mainly includes strong-blast quick-freezing equipment, tunnel freezing equipment, spiral quick-freezing equipment, fluidized-bed quick-freezing equipment, and contact freezing equipment, etc. These equipment have their own advantages and disadvantages, but the common problems include high energy consumption and uneven freezing.

[0003] In the prior art, for example, a food freezing device with the publication number of CN118089308B includes a wire mesh belt conveyor, a tunnel freezer fixed on the surface of the wire mesh belt conveyor, and a freezing fan group fixed inside the tunnel freezer. By providing an anti-cold-escape partition assembly, the ports of the tunnel freezer can be blocked, reducing the leakage of cold air from the inner chamber of the tunnel freezer and lowering the speed of cold air leakage. Thus, a large amount of cold air loss can be avoided, saving cold air to a certain extent and also reducing the energy consumption of the tunnel freezer. Moreover, when the foods enter and exit the inside of the tunnel freezer before and after freezing, the foods will not come into contact and rub against each other, so the surface of the foods will not be damaged, ensuring the appearance quality of the frozen foods.

[0004] During the process of food freezing, a freezing fan group will be configured. However, for traditional freezing fan groups, the air flow at both the air inlet and the air outlet is difficult to control, resulting in uneven air flow distribution of the freezing fan group, air flow disorder inside the quick-freezing machine, and easy presence of dead corners and cold accumulation phenomena, greatly increasing energy consumption and the quick-freezing cost.

[0005] Therefore, the present invention proposes an energy-efficient food quick-freezing device to solve the problems that the air flow of the traditional freezing fan group is difficult to control, resulting in uneven air flow distribution of the freezing fan group, easy presence of dead corners and cold accumulation phenomena, and greatly increasing energy consumption, and can evenly distribute the air flow at the air inlet and outlet of the freezing fan group, reducing the energy consumption of the fan. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an energy-efficient food quick-freezing device to solve the problems raised in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: An energy-efficient food quick-freezing device, including a tunnel quick-freezing machine, inside which there is a food conveying flat net, and directly above the food conveying flat net there is a quick-freezing fan. The quick-freezing fan includes a fan housing one, a fan housing two and an evaporator. On the front side of the fan housing one, there is an air flow path layout mechanism, which includes a fan inlet pipe. One end of the fan inlet pipe is provided with an air inlet assembly, and inside the air inlet assembly there is an air flow stabilizing assembly. The air flow stabilizing assembly includes a conical air receiving platform. The end of the fan inlet pipe far from the air inlet assembly is provided with a refrigerating fan sound-absorbing assembly. Between the refrigerating fan sound-absorbing assembly and the conical air receiving platform, there is an air flow even distribution assembly. The evaporator is installed inside the fan housing two. On the side of the fan housing two far from the fan inlet pipe, there is a wind guide plate. On the back side of the fan housing two, there is a refrigerating air outlet, and on the inner wall of the refrigerating air outlet, there is a fixed diversion cover, and on the inner wall of the diversion cover, there are partition fences.

[0008] Preferably, the conical air receiving platform is composed of a conical inner cover and a conical outer cover. The conical inner cover and the conical outer cover form a double-layer conical plate structure. Between the outer side of the conical inner cover and the inner side of the conical outer cover, there is an interlayer cavity, and the interior of the interlayer cavity is filled with filling cotton. At the end of the conical inner cover and the conical outer cover far from the air inlet assembly, there is a rear net plate. The filling cotton is specifically polyester fiber sound-absorbing cotton, which has good sound-absorbing performance and environmental protection characteristics.

[0009] Preferably, on the outer side of the conical outer cover, there is a fixing ring, which is fixedly installed on the inner surface of the fan inlet pipe. On the inner ring surface of the fixing ring, there is an inclined plate, and the other end of the inclined plate is fixedly connected to the outer surface of the conical outer cover.

[0010] Preferably, there are multiple groups of the inclined plates, and two groups of the inclined plates are inclined relatively and distributed. The two groups of the inclined plates form a triangular structure. Inside the inclined plates, there is a blocking piece. The two groups of the inclined plates and the blocking piece form a set of sealing plate structures. Between adjacent two groups of the sealing plate structures, there is a trapezoidal diversion groove.

[0011] Preferably, the air flow even distribution assembly includes an annular frame-shaped barrel plate. The outer surface of the annular frame-shaped barrel plate is fixedly connected to the inner wall of the fan inlet pipe. On the outer surface of the annular frame-shaped barrel plate, there are connecting rib plates. There are multiple groups of the connecting rib plates and they are circularly arrayed about the central axis of the annular frame-shaped barrel plate. On both sides of the connecting rib plates, there are swinging thin plates respectively. The upper ends of the two groups of the swinging thin plates are respectively rotatably connected to the inner wall of the annular frame-shaped barrel plate, and the two groups of the swinging thin plates are mirror-symmetrically distributed about the central axis of the connecting rib plates.

[0012] Preferably, the refrigeration fan sound absorption assembly includes a rear cavity ring plate, which is fixedly mounted on the inner wall of the fan inlet pipe away from the conical wind collecting platform, and an outer end of the rear cavity ring plate is fixedly connected to an air diffusion hood, which is a bucket-shaped structure opening outward, and guide grooves are evenly arranged on the inner wall of the air diffusion hood.

[0013] Preferably, an embedded ring plate is fixedly installed on the inner ring surface of the rear cavity ring plate, the cross-section of the embedded ring plate is an "I"-shaped structure, sound absorption holes are opened on the inner ring surface of the embedded ring plate, and a wall-impacting installation cavity is arranged between the outer surface of the embedded ring plate and the inner surface of the rear cavity ring plate.

[0014] Preferably, the inner surface of the impact wall mounting cavity is provided with a hollow arc cavity plate, the inner ring surface of the hollow arc cavity plate is provided with a circular groove adapted to the sound absorbing hole, and the inner cavity of the hollow arc cavity plate is fixedly installed with an array sound absorbing sheet, and the array sound absorbing sheet is specifically a polyester fiber sound absorbing sheet, which has good sound absorption performance and environmental protection characteristics.

[0015] Preferably, the air inlet assembly includes a fan assembly and a sleeve ring plate, the sleeve ring plate is embedded in the air inlet port of the fan inlet pipe, a support frame is fixedly installed on the inner ring surface of the sleeve ring plate, and the fan assembly is arranged at the center of the support frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention proposes an efficient and energy-saving food quick-freezing device, which adopts an air inlet component combined with an air flow stabilization component to achieve stable airflow entry, reduce the airflow impact on the fan inlet pipe, and reduce the gas vortex impact; cooperate with the air flow uniform distribution component to accelerate the uniform distribution of the airflow around the conical wind table, optimize the airflow path, and reduce airflow resistance and energy loss; and a refrigeration fan sound absorption component is set in the rear air outlet cavity of the fan inlet pipe to absorb the gas vortex noise and improve the noise reduction effect of the fan. The device as a whole performs multi-stage noise reduction and guidance on the airflow, reduces the gas vortex loss, reduces the wear on the fan, further improves the fan stability and efficiency, and reduces energy consumption; and cooperates with the setting of the air guide plate and the fan housing to increase the number of cold air outlets, disperse the airflow, and then reduce dead corners and cold accumulation, thereby solving the problem that the airflow of the traditional refrigeration fan unit is difficult to control, resulting in uneven airflow distribution of the refrigeration fan unit, prone to dead corners and cold accumulation, and greatly increased energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional structure diagram of the tunnel-type quick-freezer of the present invention;

[0019] Figure 2 It is a front three-dimensional structural schematic diagram of the quick freezing fan of the present invention;

[0020] Figure 3 This is a schematic structural diagram of the second blower housing detaching from the first blower housing of the present invention;

[0021] Figure 4 This is a schematic partial cross-sectional structural diagram of the quick-freezing blower of the present invention;

[0022] Figure 5 This is a schematic semi-sectional structural diagram of the air flow path layout mechanism of the present invention;

[0023] Figure 6 This is a schematic structural diagram of the air flow path layout mechanism of the present invention from the perspective of the fan assembly;

[0024] Figure 7 This is a disassembled structural diagram of the air flow path layout mechanism of the present invention;

[0025] Figure 8 This is a disassembled structural diagram of the internal structure of the blower inlet pipe of the present invention;

[0026] Figure 9 This is a front structural diagram of the air flow stabilizing component of the present invention;

[0027] Figure 10 This is of the present invention Figure 9 The enlarged structural diagram at location A;

[0028] Figure 11 This is a back structural diagram of the air flow stabilizing component of the present invention;

[0029] Figure 12 This is a structural diagram of the air flow distribution component of the present invention;

[0030] Figure 13 This is a structural diagram of the sound-absorbing component of the freezing blower of the present invention;

[0031] Figure 14 This is a structural diagram of the removal of the filling cotton from the frustum inner cover and the frustum outer cover of the present invention;

[0032] Figure 15 This is a disassembled structural diagram of the rear cavity ring plate and the embedded ring plate of the present invention;

[0033] Figure 16 This is of the present invention Figure 15 The enlarged structural diagram at location B.

[0034] In the figure: 1. Tunnel type quick freezer; 11. Food conveying flat net; 2. Quick freezing fan; 21. Fan housing one; 22. Fan housing two; 221. Flow dividing cover; 222. Partition fence; 23. Evaporator; 24. Air guiding plate; 3. Air flow path layout mechanism; 31. Fan inlet pipe; 32. Fan assembly; 321. Sleeve ring plate; 322. Support frame; 33. Conical air receiving platform; 331. Inner cone cover; 332. Outer cone cover; 333. Filling cotton; 334. Rear net plate; 335. Fixed ring; 3351. Inclined plate; 3352. Sealing piece; 3353. Trapezoidal diversion groove; 34. Ring-shaped frame barrel plate; 341. Connecting rib plate; 342. Swing thin sheet; 35. Rear cavity ring plate; 351. Wind expanding cover; 352. Embedded ring plate; 3520. Sound absorption hole; 35200. Wall collision installation cavity; 353. Hollow arc cavity plate; 3531. Array sound absorption sheet. Detailed implementation mode

[0035] In order to clearly and completely describe the purpose, technical solution of the present invention, and make the advantages more clear, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0036] Embodiment 1, please refer to Figure 1-16, the present invention provides a technical solution: an energy-efficient food quick-freezing device, including a tunnel quick-freezing machine 1. Inside the tunnel quick-freezing machine 1, there is a food conveying flat net 11. Above the food conveying flat net 11, there is a quick-freezing fan 2. The quick-freezing fan 2 includes a fan housing one 21, a fan housing two 22, and an evaporator 23. On the front side of the fan housing one 21, there is an air flow path layout mechanism 3. The air flow path layout mechanism 3 includes a fan inlet pipe 31. One end of the fan inlet pipe 31 is provided with an air inlet assembly. Inside the air inlet assembly, there is an air flow stabilizing assembly. The air flow stabilizing assembly includes a conical air receiving platform 33. The end of the fan inlet pipe 31 away from the air inlet assembly is provided with a refrigerating fan sound-absorbing assembly. Between the refrigerating fan sound-absorbing assembly and the conical air receiving platform 33, there is an air flow evenly distributing assembly. The evaporator 23 is installed inside the fan housing two 22. On the side of the fan housing two 22 away from the fan inlet pipe 31, there is a wind guiding plate 24. On the back side of the fan housing two 22, there is a refrigerating air outlet. Inside the inner wall of the refrigerating air outlet, there is a flow dividing cover 221 fixedly installed. On the inner wall of the flow dividing cover 221, there is a dividing fence 222; The air inlet assembly includes a fan assembly 32 and a sleeve ring plate 321. The sleeve ring plate 321 is embedded and installed at the air inlet port of the fan inlet pipe 31. On the inner ring surface of the sleeve ring plate 321, there is a support frame 322 fixedly installed. The fan assembly 32 is arranged at the center of the support frame 322.

[0037] In this embodiment, referring to Figures 2-4 As shown, the air flow enters through the air inlet assembly. Under the driving action of the fan assembly 32, it is introduced into the inside of the tunnel quick-freezing machine 1 to form an air flow. At this time, the sleeve ring plate 321 and the support frame 322 serve as the support parts of the fan assembly 32. When the air flow passes through the air flow stabilizing assembly and the air flow evenly distributing assembly, it enters the rear cavity section of the fan inlet pipe 31. At this time, the noise in the air flow is subjected to noise reduction treatment through the refrigerating fan sound-absorbing assembly, and at the same time, the vibration of the quick-freezing fan 2 is reduced. When the air flow is introduced into the quick-freezing fan 2, it first passes through the evaporator 23 for condensation treatment. At this time, the hot air becomes relatively stable cold air after cooling treatment. Subsequently, it is discharged through multiple groups of wind guiding plates 24. At this time, the air flow passes through the dividing fence 222 again for division, so as to ensure the dispersion of the air flow at the refrigerating air outlet, further reduce dead corners and cold accumulation phenomena, accelerate the food freezing rate, improve production efficiency, and the overall freezing efficiency of the device is high and the energy consumption is low.

[0038] Embodiment two, referring to the attached Figure 1-16, on the basis of the first embodiment, in order to achieve the smooth introduction of the airflow at the air inlet of the fan inlet pipe 31, the present embodiment proposes an airflow stabilizing component. The conical air receiving platform 33 is composed of an inner conical cover 331 and an outer conical cover 332. The inner conical cover 331 and the outer conical cover 332 form a double-layer conical plate structure. A sandwich cavity is provided between the outer side of the inner conical cover 331 and the inner side of the outer conical cover 332, and the inside of the sandwich cavity is filled with filling cotton 333. A rear net plate 334 is provided at one end of the inner conical cover 331 and the outer conical cover 332 away from the air inlet component; a fixing ring 335 is provided on the outer side of the outer conical cover 332, and the fixing ring 335 is fixedly installed on the inner surface of the fan inlet pipe 31. An inclined plate 3351 is fixedly installed on the inner ring surface of the fixing ring 335, and the other end of the inclined plate 3351 is fixedly connected to the outer surface of the outer conical cover 332; multiple groups of inclined plates 3351 are provided, and the two inclined plates 3351 in each group are inclined relatively, so that the two inclined plates 3351 in each group form a trapezoidal structure. A blocking piece 3352 is provided between the two inclined plates 3351 in each group, and the two inclined plates 3351 and the blocking piece 3352 in each group form a set of sealing plate structures. A trapezoidal diversion groove 3353 is provided between adjacent two sets of sealing plate structures.

[0039] In this embodiment, referring to Figure 5 As shown, after the airflow enters the inside of the fan inlet pipe 31, most of the airflow is preliminarily screened by the conical air receiving platform 33. Here, the inner conical cover 331 and the outer conical cover 332 are integrally designed as a conical platform structure. The rear net plate 334 is equipped at the distal end of the conical air receiving platform 33 to guide the airflow to flow orderly. When the airflow stays inside the inner conical cover 331, through a sandwich cavity constructed between the inner conical cover 331 and the outer conical cover 332, this cavity is filled with filling cotton 333, aiming to absorb the airflow noise and relieve the tremor in the airflow transmission, so as to ensure the smoothness of the airflow and the improvement of the stability of the equipment fan inlet pipe 31; referring to Figure 6 and Figures 9-10 As shown, the reason for installing the fixing ring 335 and the inclined plate 3351 on the outer ring of the outer conical cover 332 is that while integrally supporting and limiting the conical air receiving platform 33, the blocking pieces 3352 are evenly arranged, and a circular plate with a plurality of trapezoidal diversion grooves 3353 arranged in an array is formed between the outer ring of the outer conical cover 332 and the inner ring of the fixing ring 335. At this time, a small part of the airflow enters the inner cavity of the fan inlet pipe 31 through the trapezoidal diversion groove 3353. At this time, referring to Figure 5As shown, the air flow entering through the trapezoidal diversion channel 3353 enters around the outer ring of the frustum-shaped outer cover 332 and cooperates with the inclined surface of the frustum of the frustum-shaped outer cover 332 to stabilize the air flow. It should be noted that, in order to enhance the structural stability and fine regulation of the air flow, these inclined plates 3351 not only provide a stable support for the conical air-receiving platform 33, but also form multiple groups of sealing plate structures through the synergistic effect with the sealing pieces 3352. Among them, trapezoidal diversion channels 3353 are ingeniously arranged. These diversion channels are arranged in an array to form an annular plate structure, enabling a small part of the air flow to enter the inner cavity of the fan inlet pipe 31 through these finely designed channels. The ingenious cooperation with the frustum inclined surface further strengthens the stability of the air flow. It should be noted that when the air flow enters the fan inlet pipe 31, most of the air flow first passes through the conical air-receiving platform 33 for preliminary screening and noise reduction treatment, while a small part of the air flow passes through the trapezoidal diversion channel 3353 and is smoothly introduced along the outer ring of the frustum-shaped outer cover 332 and interacts with the inclined surface of the frustum to achieve secondary stability of the air flow.

[0040] Example 3. Refer to the attached Figure 1-16 , on the basis of Example 2, in order to achieve uniform distribution of the air flow while reducing eddy current loss and improving the stability of the refrigeration fan: The air flow uniform distribution component includes an annular frame-shaped barrel plate 34. The outer surface of the annular frame-shaped barrel plate 34 is fixedly connected to the inner wall of the fan inlet pipe 31. Connecting rib plates 341 are fixedly installed on the outer surface of the annular frame-shaped barrel plate 34. There are multiple groups of connecting rib plates 341 and they are arranged in a circular array about the central axis of the annular frame-shaped barrel plate 34. Swing thin plates 342 are respectively arranged on both sides of the connecting rib plate 341. The upper ends of the two groups of swing thin plates 342 are respectively rotatably connected to the inner wall of the annular frame-shaped barrel plate 34, and a connecting rib plate 341 is arranged between each adjacent two groups of swing thin plates 342.

[0041] In this embodiment, refer to Figure 5 and Figures 10-12 As shown, the air flow smoothly entering from the rear net plate 334 and the outer ring of the frustum-shaped outer cover 332 now enters through the inside of the annular frame-shaped barrel plate 34. Here, it is arranged in a circular array around the central axis of the component to form multiple precise flow channels, evenly dispersing the air flow and effectively avoiding local aggregation of the air flow in the fan inlet pipe 31, ensuring the uniformity and efficiency of the air flow. It should be noted that swing thin plates 342 that can swing are distributed on both sides of the connecting rib plate 341. Combining Figures 9-10As shown in the figure, when the air flow is smoothly introduced from the rear net plate 334 and the outer ring of the frustum-shaped outer cover 332 and passes through the flow channel inside the annular frame-shaped cylinder plate 34, the air flow entering from the trapezoidal diversion groove 3353 accelerates its flow rate due to the reduction of its flow channel. According to Bernoulli's principle, the increase in flow rate leads to a decrease in pressure in this area, which in turn drives the swing sheet 342 to swing towards the central area with a faster flow rate. This dynamic adjustment mechanism not only effectively reduces the eddy current formed in the fan inlet pipe 31 by the air flow, reduces the impact and energy loss of the eddy current on the side wall of the fan inlet pipe 31, but also further improves the stability and operating efficiency of the fan, realizes a significant reduction in energy consumption, and ensures the high efficiency and energy saving of this food quick-freezing device.

[0042] Embodiment 4. Refer to the appendix Figure 1-16 , on the basis of Embodiment 3, in order to reduce the noise generated by the operation of the quick-freezing fan 2 and reduce the tremor at the connection between the fan inlet pipe 31 and the quick-freezing fan 2, the refrigeration fan sound-absorbing component includes a rear cavity ring plate 35. The rear cavity ring plate 35 is fixedly installed on the inner wall of the side of the fan inlet pipe 31 away from the conical air-receiving platform 33. One end of the outer side of the rear cavity ring plate 35 is fixedly connected with an air-expanding cover 351. The air-expanding cover 351 has a funnel-shaped structure with an outward opening. Flow guide grooves are evenly arranged on the inner wall of the air-expanding cover 351; an embedded ring plate 352 is fixedly installed on the inner ring surface of the rear cavity ring plate 35. The cross-section of the embedded ring plate 352 is in an "I" shape. Sound-absorbing holes 3520 are arranged on the inner ring surface of the embedded ring plate 352. A collision wall installation cavity 35200 is arranged between the outer surface of the embedded ring plate 352 and the inner surface of the rear cavity ring plate 35; a hollow arc-shaped cavity plate 353 is arranged on the inner surface of the collision wall installation cavity 35200. A circular groove adapted to the sound-absorbing holes 3520 is arranged on the inner ring surface of the hollow arc-shaped cavity plate 353. An array of sound-absorbing sheets 3531 is fixedly installed in the inner cavity of the hollow arc-shaped cavity plate 353.

[0043] In this embodiment, refer to Figure 13 and Figures 15-16As shown, when the air flow enters the rear cavity position of the fan inlet pipe 31, the air flow passes through the sound absorption holes 3520 arranged on the inner ring surface of the embedded ring plate 352 for sound absorption. These holes can capture and absorb the noise energy carried in the air flow. A unique space collision wall installation cavity 35200 is formed between the embedded ring plate 352 and the rear cavity ring plate 35. This space serves as a buffer for the noise energy, further weakening the intensity and propagation ability of the noise through the eddy current effect. And through the mutual cooperation of the annularly arranged hollow arc-shaped cavity plates 353 and the internally arranged array of sound absorption sheets 3531, further reduction of the noise is achieved. The characteristics of acoustic damping and sound absorption materials are fully utilized. Through the mutual cooperation of the multi-stage sound absorption structure, the propagation and reflection of the noise are effectively weakened, thus achieving a significant reduction in the noise. At the same time, by optimizing the air flow path and applying the eddy current effect, not only the sound absorption effect is enhanced, but also the vibration and flutter during the operation of the quick-freezing fan 2 are further reduced, improving the stability and reliability of the overall system, providing strong technical support for the efficient and low-noise operation of the refrigeration fan.

[0044] Working principle and usage process of the present invention: First, spread the food to be frozen through the feeding port of the tunnel freezer 1, and then start the overall operation of the equipment. At this time, the food conveying flat net 11 conveys the food to be frozen. By turning on the quick-freezing fan 2 above the food conveying flat net 11, first, under the driving action of the fan assembly 32, the air flow is introduced into the interior of the tunnel freezer 1. After the air flow enters the blower inlet pipe 31, most of the air flow is preliminarily screened through the conical air-receiving platform 33. Here, the inner cone cover 331 and the outer cone cover 332 of the cone are integrally designed as a conical structure. The distal end of the conical air-receiving platform 33 is equipped with a rear net plate 334 to guide the orderly flow of the air flow. When the air flow stays inside the inner cone cover 331, through a sandwich cavity constructed between the inner cone cover 331 and the outer cone cover 332, this cavity is filled with filling cotton 333, aiming to absorb the air flow noise and relieve the tremor during the air flow transmission, so as to ensure the stability of the air flow and the stability of the equipment blower inlet pipe 31. In addition, the air flow smoothly entering from the rear net plate 334 and the outer ring of the outer cone cover 332 then enters through the inner side of the annular frame-shaped cylinder plate 34. Subsequently, when the air flow enters the rear cavity position of the blower inlet pipe 31, the air flow is sound-absorbed through the sound-absorbing holes 3520 arranged on the inner ring surface of the embedded ring plate 352. These holes can capture and absorb the noise energy carried in the air flow. A unique space impact wall installation cavity 35200 is formed between the embedded ring plate 352 and the rear cavity ring plate 35. This space serves as a buffer for the noise energy, further weakening the intensity and propagation ability of the noise through the eddy current effect, and further reducing the noise through a multi-stage sound-absorbing structure. Then, the air flow entering the quick-freezing fan 2 is condensed through the evaporator 23. At this time, the hot air becomes cold air with a lower temperature after cooling treatment, and then is guided and discharged through multiple groups of air guide plates 24. At this time, the air flow is divided again through the dividing fence 222, so as to ensure the dispersion of the air flow at the freezing air outlet, further reduce the dead angle and cold accumulation phenomenon, and further improve the quick-freezing effect of the food.

[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A highly efficient and energy-saving food quick-freezing device, comprising a tunnel-type quick-freezing machine (1), wherein a food conveying flat net (11) is arranged inside the tunnel-type quick-freezing machine (1), characterized in that: A quick freezing fan (2) is arranged directly above the food conveying flat net (11), the quick freezing fan (2) comprising a fan housing (1) (21), a fan housing (22) and an evaporator (23), an air flow path layout mechanism (3) is arranged on the front side of the fan housing (21), the air flow path layout mechanism (3) comprises a fan inlet pipe (31), an air inlet assembly is arranged at one end of the fan inlet pipe (31), an air flow stabilization assembly is arranged on the inner side of the air inlet assembly, the air flow stabilization assembly comprises a conical air collecting platform (33), the fan inlet pipe ( 31) A refrigeration fan sound absorbing component is arranged at one end away from the air inlet component, an air flow distribution component is arranged between the refrigeration fan sound absorbing component and the conical wind collecting platform (33), the evaporator (23) is installed on the inner side of the second fan housing (22), a wind guide plate (24) is arranged on the side of the second fan housing (22) away from the fan inlet pipe (31), a refrigeration air outlet is opened on the back side of the second fan housing (22), a flow divider (221) is fixedly installed on the inner wall of the refrigeration air outlet, and a dividing fence (222) is arranged on the inner wall of the flow divider (221); The conical wind-collecting platform (33) is composed of a conical inner cover (331) and a conical outer cover (332), wherein the conical inner cover (331) and the conical outer cover (332) form a double-layer conical plate-like structure, an interlayer cavity is provided between the outer side of the conical inner cover (331) and the inner side of the conical outer cover (332), the interior of the interlayer cavity is filled with filling cotton (333), and a rear mesh plate (334) is provided at one end of the conical inner cover (331) and the conical outer cover (332) away from the air inlet assembly; A fixing ring (335) is provided on the outer side of the frustum outer cover (332), and the fixing ring (335) is fixedly mounted on the inner surface of the fan inlet pipe (31). An inclined plate (3351) is fixedly mounted on the inner ring surface of the fixing ring (335), and the other end of the inclined plate (3351) is fixedly connected to the outer surface of the frustum outer cover (332).

2. The high-efficiency and energy-saving food quick-freezing device according to claim 1, characterized in that: The inclined plates (3351) are provided in multiple groups, and two groups of the inclined plates (3351) are relatively inclined and distributed, the two groups of the inclined plates (3351) form a triangular structure, a sealing piece (3352) is provided on the inner side of the inclined plate (3351), the two groups of the inclined plates (3351) and the sealing piece (3352) form a group of sealing plate structures, and a triangular guide groove (3353) is provided between two adjacent groups of the sealing plate structures.

3. The high-efficiency and energy-saving food quick-freezing device according to claim 1, characterized in that: The airflow distribution component comprises an annular frame-shaped cylindrical plate (34), the outer surface of the annular frame-shaped cylindrical plate (34) being fixedly connected to the inner wall of the fan inlet pipe (31), and a connecting rib plate (341) being fixedly installed on the outer surface of the annular frame-shaped cylindrical plate (34), wherein a plurality of groups of the connecting rib plates (341) are provided and arranged in a circular array about the central axis of the annular frame-shaped cylindrical plate (34), and swinging thin plates (342) are respectively provided on both sides of the connecting rib plate (341), and the upper ends of the two groups of the swinging thin plates (342) are respectively rotatably connected to the inner wall of the annular frame-shaped cylindrical plate (34), and the two groups of the swinging thin plates (342) are distributed in a mirror image about the central axis of the connecting rib plate (341).

4. The high-efficiency and energy-saving food quick-freezing device according to claim 3, characterized in that: The refrigeration fan sound absorption component includes a rear cavity ring plate (35), and the rear cavity ring plate (35) is fixedly installed on the inner wall of the fan inlet pipe (31) away from the conical wind collecting platform (33). An outer end of the rear cavity ring plate (35) is fixedly connected to an air diffuser (351), and the air diffuser (351) is a bucket-shaped structure opening outward, and guide grooves are evenly opened on the inner wall of the air diffuser (351).

5. The high-efficiency and energy-saving food quick-freezing device according to claim 4, characterized in that: An embedded ring plate (352) is fixedly mounted on the inner ring surface of the rear cavity ring plate (35); the cut section of the embedded ring plate (352) is in an "I"-shaped structure; a sound absorbing hole (3520) is provided on the inner ring surface of the embedded ring plate (352); and a wall-impacting mounting cavity (35200) is provided between the outer surface of the embedded ring plate (352) and the inner surface of the rear cavity ring plate (35).

6. The high-efficiency and energy-saving food quick-freezing device according to claim 5, characterized in that: The inner surface of the wall-impacting installation cavity (35200) is provided with a hollow arc-shaped cavity plate (353), the inner ring surface of the hollow arc-shaped cavity plate (353) is provided with a circular groove adapted to the sound-absorbing hole (3520), and the inner cavity of the hollow arc-shaped cavity plate (353) is fixedly installed with an array of sound-absorbing sheets (3531).

7. The high-efficiency and energy-saving food quick-freezing device according to claim 1, characterized in that: The air inlet assembly comprises a fan assembly (32) and a sleeve ring plate (321); the sleeve ring plate (321) is embedded in the air inlet port of the fan inlet pipe (31); a support frame (322) is fixedly mounted on the inner ring surface of the sleeve ring plate (321); and the fan assembly (32) is arranged at the center of the support frame (322).

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