Efficient and energy-saving food quick-freezing device

Abstract

The invention relates to the technical field of quick-freezing devices, in particular to an efficient and energy-saving food quick-freezing device which comprises a tunnel type quick-freezing machine, a food conveying flat net is arranged in the tunnel type quick-freezing machine, and a quick-freezing fan is arranged over the food conveying flat net. According to the food quick-freezing device, the air inlet assembly and the airflow stabilizing assembly are combined, stable entering of airflow is achieved, airflow impact of the airflow on the fan inlet pipe is reduced, and gas vortex impact is reduced; the airflow uniform distribution assembly is matched, uniform distribution of airflow on the periphery of the conical air containing table is accelerated, the airflow path is optimized, and airflow resistance and energy loss are reduced; and the freezing fan sound absorption assembly is arranged in the rear air outlet cavity of the fan inlet pipe, air eddy noise is absorbed, the noise reduction effect of the fan is improved, the whole device conducts multi-section noise reduction and guiding on airflow, air eddy loss is reduced, meanwhile, abrasion to the fan is reduced, the stability and efficiency of the fan are further improved, and energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of quick-freezing devices, in particular to a high-efficiency and energy-saving food quick-freezing device. Background Art

[0002] Quick-freezing equipment is an indispensable part of the food industry. It is used to quickly cool food to below the freezing point in order to achieve the purpose of long-term preservation while maintaining the quality and nutritional value of the food. With the advancement of science and technology and the improvement of consumers' requirements for food quality, the design and manufacture of quick-freezing equipment are also constantly developing and optimizing. At present, 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. These equipment have their own advantages and disadvantages, but common problems include high energy consumption and uneven freezing.

[0003] In the prior art, there is a food freezing device with publication number CN118089308B, which includes a wire mesh belt conveyor, a tunnel freezer fixed on the surface of the wire mesh belt conveyor, and a refrigeration fan unit fixed inside the tunnel freezer. By providing an anti-escape cold partition component, the port of the tunnel freezer can be blocked, the cold air leakage from the internal chamber of the tunnel freezer is reduced, and the speed of cold air leakage is reduced, thereby avoiding the loss of a large amount of cold air, saving cold air to a certain extent, and reducing the energy consumption of the tunnel freezer. In addition, when the food before and after freezing enters and exits the tunnel freezer, the food will not come into contact with or rub against each other, so the surface of the food will not be damaged, thereby ensuring the appearance quality of the food after freezing.

[0004] During the food freezing process, a refrigeration fan unit will be configured. However, the airflow at both the air inlet and the air outlet of a traditional refrigeration fan unit is difficult to control, resulting in uneven airflow distribution of the refrigeration fan unit, turbulent airflow inside the quick freezer, and prone to dead corners and cold accumulation, which greatly increases energy consumption and quick freezing costs.

[0005] Therefore, the present invention proposes an efficient and energy-saving food quick-freezing device to solve 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. The airflow can be evenly distributed at the inlet and outlet of the refrigeration fan unit to reduce the energy consumption of the fan. Summary of the invention

[0006] In view of the shortcomings of the prior art, the object of the present invention is to provide a highly efficient and energy-saving food quick-freezing device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: an efficient and energy-saving food quick-freezing device, comprising a tunnel-type quick-freezing machine, wherein a food conveying flat net is arranged inside the tunnel-type quick-freezing machine, a quick-freezing fan is arranged directly above the food conveying flat net, the quick-freezing fan comprises a fan housing 1, a fan housing 2 and an evaporator, an air flow path layout mechanism is arranged on the front side of the fan housing 1, the air flow path layout mechanism comprises a fan inlet pipe, an air inlet assembly is arranged at one end of the fan inlet pipe, and an inner side of the air inlet assembly An airflow stabilizing component is provided, and the airflow stabilizing component includes a conical wind collecting platform, a refrigeration fan sound absorbing component is provided at one end of the fan inlet pipe away from the air inlet component, an airflow uniform distribution component is provided between the refrigeration fan sound absorbing component and the conical wind collecting platform, the evaporator is installed on the inner side of the second fan housing, an air guide plate is provided on the side of the second fan housing away from the fan inlet pipe, a refrigeration air outlet is opened on the back side of the second fan housing, a diversion hood is fixedly installed on the inner wall of the refrigeration air outlet, and a dividing fence is provided on the inner wall of the diversion hood.

[0008] Preferably, the conical wind-collecting tower is composed of a frustum inner cover and a frustum outer cover, the frustum inner cover and the frustum outer cover form a double-layer conical plate structure, an interlayer cavity is provided between the outer side of the frustum inner cover and the inner side of the frustum outer cover, the interior of the interlayer cavity is filled with filling cotton, a rear mesh panel is provided at one end of the frustum inner cover and the frustum outer cover away from the air inlet assembly, and the filling cotton is specifically polyester fiber sound insulation cotton, which has good sound absorption performance and environmental protection characteristics.

[0009] Preferably, a fixing ring is provided on the outer side of the frustum outer cover, the fixing ring is fixedly mounted on the inner surface of the fan inlet pipe, an inclined plate is fixedly mounted on the inner ring surface of the fixing ring, and the other end of the inclined plate is fixedly connected to the outer surface of the frustum outer cover.

[0010] Preferably, the inclined plates are provided in multiple groups, and two groups of the inclined plates are relatively inclined and distributed, the two groups of the inclined plates form a triangular structure, a sealing piece is provided on the inner side of the inclined plate, the two groups of the inclined plates and the sealing piece form a group of sealing plate structures, and a trapezoidal guide groove is provided between two adjacent groups of the sealing plate structures.

[0011] Preferably, the air flow distribution component includes an annular frame-type cylinder plate, the outer surface of the annular frame-type cylinder plate is fixedly connected to the inner wall of the fan inlet pipe, and the outer surface of the annular frame-type cylinder plate is fixedly installed with a connecting rib plate, and the connecting rib plates are provided with multiple groups and arranged in a circular array about the central axis of the annular frame-type cylinder plate, and swinging sheets are respectively provided on both sides of the connecting rib plate, and the upper ends of the two groups of the swinging sheets are respectively rotatably connected to the inner wall of the annular frame-type cylinder plate, and the two groups of the swinging sheets are mirror-distributed about the central axis of the connecting rib plate.

[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: 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

[0017] Figure 1 It is a schematic cross-sectional structure diagram of the tunnel-type quick-freezer of the present invention; Figure 2 It is a front three-dimensional structural schematic diagram of the quick freezing fan of the present invention; Figure 3It is a structural schematic diagram of the fan casing 2 being detached from the fan casing 1 of the present invention; Figure 4 It is a schematic diagram of a partial cross-section structure of the quick freezing fan of the present invention; Figure 5 It is a half-section structural schematic diagram of the airflow path layout mechanism of the present invention; Figure 6 It is a schematic structural diagram of the airflow path layout mechanism of the present invention from the perspective of the fan assembly; Figure 7 It is a schematic diagram of the disassembled structure of the airflow path layout mechanism of the present invention; Figure 8 This is a schematic diagram of the disassembled structure of the internal structure of the fan inlet pipe of the present invention; Fig. 9 It is a schematic diagram of the front structure of the airflow stabilizing component of the present invention; Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure at point A; Fig.11 It is a schematic diagram of the back structure of the airflow stabilizing component of the present invention; Fig.12 It is a structural schematic diagram of the airflow distribution assembly of the present invention; Fig.13 It is a structural schematic diagram of the refrigeration fan sound absorbing assembly of the present invention; Fig.14 This is a schematic diagram of the structure of the frustum inner cover and the frustum outer cover of the filling cotton of the present invention; Fig.15 It is a schematic diagram of the disassembled structure of the rear cavity ring plate and the embedded ring plate of the present invention; Fig.16 For the present invention Fig.15 Schematic diagram of the enlarged structure at B.

[0018] In the figure: 1. Tunnel-type quick-freezing machine; 11. Food conveying flat net; 2. Quick-freezing fan; 21. Fan housing 1; 22. Fan housing 2; 221. Divider hood; 222. Dividing fence; 23. Evaporator; 24. Air guide plate; 3. Air flow path layout mechanism; 31. Fan inlet pipe; 32. Fan assembly; 321. Set ring plate; 322. Support frame; 33. Conical air-receiving platform; 331. Conical inner cover; 332. Conical outer cover; 333, filling cotton; 334, rear mesh plate; 335, fixing ring; 3351, inclined plate; 3352, blocking plate; 3353, trapezoidal guide groove; 34, annular frame cylinder plate; 341, connecting rib plate; 342, swinging thin plate; 35, rear cavity ring plate; 351, air expansion cover; 352, embedded ring plate; 3520, sound-absorbing hole; 35200, wall-mounting cavity; 353, hollow arc cavity plate; 3531, array sound-absorbing sheet. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail 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, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] For example, see Figure 1-16 The present invention provides a technical solution: an efficient and energy-saving food quick-freezing device, comprising a tunnel-type quick-freezing machine 1, a food conveying flat net 11 is arranged inside the tunnel-type quick-freezing machine 1, a quick-freezing fan 2 is arranged directly above the food conveying flat net 11, the quick-freezing fan 2 comprises a fan housing 1 21, a fan housing 2 22 and an evaporator 23, an air flow path layout mechanism 3 is arranged on the front side of the fan housing 1 21, the air flow path layout mechanism 3 comprises a fan inlet pipe 31, an air inlet component is arranged at one end of the fan inlet pipe 31, an air flow stabilizing component is arranged on the inner side of the air inlet component, the air flow stabilizing component comprises a conical air collecting platform 33, and a refrigeration fan suction is arranged at one end of the fan inlet pipe 31 away from the air inlet component A sound component is provided, 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 fan housing 22, and an air guide plate 24 is arranged on the side of the fan housing 22 away from the fan inlet pipe 31, a refrigeration air outlet is opened on the back side of the fan housing 22, a diverter cover 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 diverter cover 221; the air inlet component includes a fan component 32 and a set ring plate 321, the set ring plate 321 is embedded and installed in the air inlet port of the fan inlet pipe 31, a support frame 322 is fixedly installed on the inner ring surface of the set ring plate 321, and the fan component 32 is arranged at the center of the support frame 322.

[0021] In this embodiment, refer to Figure 2-Figure 4As shown, the airflow enters through the air inlet assembly, and is introduced into the tunnel quick freezer 1 to form an airflow under the driving action of the fan assembly 32. At this time, the set ring plate 321 and the support frame 322 serve as the support parts of the fan assembly 32. After the airflow passes through the airflow stabilization assembly and the airflow distribution assembly, it enters the rear cavity section of the fan inlet pipe 31. At this time, the noise in the airflow is reduced by the refrigeration fan sound absorption assembly, and the vibration of the quick freezing fan 2 is reduced. When the airflow is introduced into the quick freezing fan 2, it is first condensed through the evaporator 23. At this time, the hot air is cooled and becomes relatively low and stable cold air, and then discharged through multiple groups of air guide plates 24. At this time, the airflow is divided again by the dividing fence 222, so as to ensure the dispersion of the airflow at the freezing air outlet, further reduce dead corners and cold accumulation, accelerate the food freezing rate, improve production efficiency, and the overall freezing efficiency of the device is high and the energy consumption is low.

[0022] Embodiment 2, refer to the attached Figure 1-16 On the basis of the first embodiment, in order to achieve the smooth introduction of airflow at the air inlet of the fan inlet pipe 31, the present embodiment proposes an airflow stabilizing component. The conical wind-collecting platform 33 is composed of a conical inner cover 331 and a conical outer cover 332. 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. 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 component; a fixing ring 335 is provided on the outer side of the conical outer cover 332 to fix the conical inner cover 331 and the inner side of the conical outer cover 332. The fixed ring 335 is fixedly installed on the inner surface of the fan inlet pipe 31, and an inclined plate 3351 is fixedly installed on the inner ring surface of the fixed ring 335, and the other end of the inclined plate 3351 is fixedly connected to the outer surface of the frustum outer cover 332; the inclined plates 3351 are provided in multiple groups, and the two inclined plates 3351 in each group are relatively inclined and distributed, so that the two inclined plates 3351 in each group form a trapezoidal structure, and a sealing piece 3352 is provided between the two inclined plates 3351 in each group. The two inclined plates 3351 and the sealing piece 3352 in each group form a group of sealing plate structures, and a trapezoidal guide groove 3353 is provided between two adjacent groups of sealing plate structures.

[0023] In this embodiment, refer to Figure 5 As shown, after the airflow enters the fan inlet pipe 31, most of the airflow is initially screened through the conical air collecting platform 33. Here, the frustum inner cover 331 and the frustum outer cover 332 are designed as a conical platform structure. The far end of the conical air collecting platform 33 is equipped with a rear mesh plate 334 to guide the airflow to flow in an orderly manner. When the airflow stays on the inner side of the frustum inner cover 331, it passes through an interlayer cavity constructed between the frustum inner cover 331 and the frustum outer cover 332. The cavity is filled with filling cotton 333, which is intended to absorb airflow noise and alleviate vibration during airflow transmission, thereby ensuring the smoothness of the airflow and improving the stability of the equipment fan inlet pipe 31; refer to Figure 6 and Figure 9-10 As shown, the reason why the fixing ring 335 and the inclined plate 3351 are installed on the outer ring of the frustum outer cover 332 is to support and limit the cone-shaped wind-collecting platform 33 as a whole, and the blocking pieces 3352 are evenly arranged, and a ring plate with multiple array-arranged trapezoidal guide grooves 3353 is formed between the outer ring of the frustum outer cover 332 and the inner ring of the fixing ring 335. At this time, a small part of the airflow passes through the trapezoidal guide grooves 3353 and enters the inner cavity of the fan inlet pipe 31. At this time, referring to Figure 5 As shown, the airflow entering through the trapezoidal guide groove 3353 enters around the outer ring of the frustum outer cover 332, and cooperates with the inclined surface of the frustum of the frustum of the frustum outer cover 332 to stabilize the airflow; and it should be noted that in order to enhance the stability of the structure and the fine control of the airflow, these inclined plates 3351 not only provide a stable support for the conical wind-collecting platform 33, but also form a plurality of sealing plate structures through the synergistic effect with the blocking piece 3352, in which the trapezoidal guide grooves 3353 are cleverly arranged, and these guide grooves are arranged in an array to form a It forms an annular plate structure, so that a small part of the airflow can enter the inner cavity of the fan inlet pipe 31 through these carefully designed channels, and the ingenious cooperation with the inclined surface of the cone further enhances the stability of the airflow; it is worth noting that when the airflow enters the fan inlet pipe 31, most of the airflow first passes through the conical wind collecting platform 33 for preliminary screening and noise reduction, while a small part of the airflow passes through the trapezoidal guide groove 3353 and is smoothly introduced along the outer ring of the cone outer cover 332, interacting with the inclined surface of the cone to achieve secondary stabilization of the airflow.

[0024] Embodiment 3, refer to the attached Figure 1-16 On the basis of the second embodiment, in order to achieve uniform airflow distribution, reduce eddy current loss and improve the stability of the refrigeration fan: the airflow uniform distribution component includes an annular frame-type cylinder plate 34, the outer surface of the annular frame-type cylinder plate 34 is fixedly connected to the inner wall of the fan inlet pipe 31, and a connecting rib plate 341 is fixedly installed on the outer surface of the annular frame-type cylinder plate 34. The connecting rib plates 341 are provided with multiple groups and are arranged in a circular array about the central axis of the annular frame-type cylinder plate 34. Swinging sheets 342 are respectively provided on both sides of the connecting rib plate 341. The upper ends of the two groups of swinging sheets 342 are respectively rotatably connected to the inner wall of the annular frame-type cylinder plate 34, and a connecting rib plate 341 is provided between each two adjacent groups of swinging sheets 342.

[0025] In this embodiment, refer to Figure 5 and Figure 10-12As shown, the airflow entering smoothly from the rear mesh plate 334 and the outer ring of the frustum outer cover 332 now enters through the inner side of the annular frame-shaped cylinder plate 34, which is arranged in a circular array around the central axis of the component to form a plurality of precise flow channels, which evenly disperses the airflow and effectively avoids the local gathering of the airflow in the fan inlet pipe 31, thereby ensuring the uniformity and high efficiency of the airflow. It is worth noting that the swingable swing sheets 342 are distributed on both sides of the connecting rib plate 341, combined with the swingable swing sheets 342 of the connecting rib plate 341, Figure 9-10 As shown, when the airflow is smoothly introduced by the rear mesh plate 334 and the outer ring of the frustum outer cover 332, and passes through the flow channel on the inner side of the annular frame-type cylinder plate 34, the airflow entering from the trapezoidal guide groove 3353 is accelerated due to its reduced flow channel. According to Bernoulli's principle, the increase in flow rate causes the pressure in this area to decrease, thereby driving the swinging sheet 342 to swing toward the central area with faster flow rate. This dynamic adjustment mechanism not only effectively reduces the vortex formed by the airflow in the fan inlet pipe 31, reduces the impact and energy loss of the vortex on the side wall of the fan inlet pipe 31, but also further improves the stability and operation efficiency of the fan, achieves a significant reduction in energy consumption, and ensures the high efficiency and energy saving of the food quick-freezing device.

[0026] Embodiment 4, refer to the attached Figure 1-16 On the basis of the third embodiment, in order to reduce the noise of the quick freezing fan 2 during operation and reduce the vibration at the connection between the fan inlet pipe 31 and the quick freezing fan 2, the freezing fan sound absorbing assembly includes a rear cavity ring plate 35, the rear cavity ring plate 35 is fixedly mounted on the inner wall of the fan inlet pipe 31 away from the conical wind platform 33, and an air diffuser 351 is fixedly connected to one end of the outer side of the rear cavity ring plate 35. The air diffuser 351 is a bucket-shaped structure opening outward, and guide grooves are evenly arranged on the inner wall of the air diffuser 351; an embedded The ring plate 352, the cross-section of the embedded ring plate 352 is in an "I"-shaped structure, the inner ring surface of the embedded ring plate 352 is provided with a sound-absorbing hole 3520, 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; the inner surface of the wall-impacting mounting cavity 35200 is provided with a hollow arc-shaped cavity plate 353, and 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 sound-absorbing sheet 3531.

[0027] In this embodiment, refer to Fig.13 and Figure 15-16As shown, when the airflow enters the rear cavity position of the fan inlet pipe 31, the airflow passes through the sound-absorbing 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 airflow. A unique space wall-impacting installation cavity 35200 is formed between the embedded ring plate 352 and the rear cavity ring plate 35. This space serves as a buffer zone for noise energy. The intensity and propagation ability of the noise are further weakened by the vortex effect. The noise is further reduced by the mutual cooperation of the hollow arc cavity plate 353 arranged in an annular manner and the array sound-absorbing sheet 3531 arranged inside. The characteristics of acoustic damping and sound-absorbing materials are fully utilized. The mutual cooperation of the multi-stage sound-absorbing structure effectively weakens the propagation and reflection of the noise, thereby achieving a significant reduction in noise. At the same time, by optimizing the airflow path and the application of the vortex effect, not only the sound absorption effect is enhanced, but also the vibration and vibration of the quick-freezing fan 2 during operation are further reduced, the stability and reliability of the overall system are improved, and strong technical support is provided for the efficient and low-noise operation of the refrigeration fan.

[0028] The working principle and use process of the present invention are as follows: first, the food to be frozen is spread through the feed port of the tunnel quick freezer 1, and then the whole equipment is turned on. At this time, the food conveying flat net 11 conveys the frozen food. 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 airflow inside the tunnel quick freezer 1 is introduced. After the airflow enters the fan inlet pipe 31, most of the airflow passes through the conical air collecting platform 33 for preliminary screening, where the airflow is The frustum inner cover 331 and the frustum outer cover 332 are designed as a conical structure. The far end of the conical wind-collecting platform 33 is equipped with a rear mesh plate 334 to guide the airflow to flow in an orderly manner. When the airflow stays on the inner side of the frustum inner cover 331, it passes through a sandwich cavity constructed between the frustum inner cover 331 and the frustum outer cover 332. The cavity is filled with filling cotton 333 to absorb the airflow noise and alleviate the vibration in the airflow transmission, thereby ensuring the stability of the airflow and the stability of the equipment fan inlet pipe 31; in addition, the rear mesh plate 334 is used to prevent the airflow from flowing out of the equipment fan inlet pipe 31. The airflow that smoothly enters the plate 334 and the outer ring of the frustum outer cover 332 enters through the inner side of the annular frame-shaped cylinder plate 34 at this time; then, when the airflow enters the rear cavity position of the fan inlet pipe 31, the airflow 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 airflow, and a unique space wall-impacting installation cavity 35200 is formed between the embedded ring plate 352 and the rear cavity ring plate 35. This space serves as a buffer zone for noise energy, and further weakens the intensity and propagation ability of the noise through the vortex effect, and further reduces the noise through a multi-stage sound absorption structure; then, the airflow entering the quick-freezing fan 2 passes through the evaporator 23 for condensation treatment. At this time, the hot air is cooled and becomes relatively low and stable cold air, and then passes through multiple groups of air guide plates 24 for guided discharge. At this time, the airflow is divided again by the dividing fence 222, so as to ensure that the airflow of the freezing air outlet is dispersed, further reduce dead corners and cold accumulation, and further improve the quick-freezing effect of food.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 ( 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 diversion hood (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 diversion hood (221).

2. The high-efficiency and energy-saving food quick-freezing device according to claim 1, characterized in that: 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, and 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), and the interior of the interlayer cavity is filled with filling cotton (333). 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.

3. The high-efficiency and energy-saving food quick-freezing device according to claim 2, characterized in that: 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).

4. The high-efficiency and energy-saving food quick-freezing device according to claim 3, 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, the inner side of the inclined plates (3351) is provided with a blocking piece (3352), the two groups of the inclined plates (3351) and the blocking piece (3352) form a group of sealing plate structures, and a trapezoidal guide groove (3353) is provided between two adjacent groups of the sealing plate structures.

5. The high-efficiency and energy-saving food quick-freezing device according to claim 3, 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).

6. The high-efficiency and energy-saving food quick-freezing device according to claim 5, 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).

7. The high-efficiency and energy-saving food quick-freezing device according to claim 6, 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).

8. The high-efficiency and energy-saving food quick-freezing device according to claim 7, 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).

9. 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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