Wind shielding assembly and drying device thereof

Abstract

The utility model belongs to the technical field of drying, and discloses an air blocking assembly and a drying device thereof, which are used for being arranged in a drying chamber, and an air inlet groove is formed in the top of the drying chamber; the wind blocking assembly comprises a wind blocking plate and a connecting piece. The wind shield is horizontally placed under the air inlet groove, and the projection of the air inlet groove in the vertical direction is completely located on the wind shield. One end of the connecting piece is fixed with the inner top surface of the drying chamber; a gap for airflow to horizontally pass through is reserved between the upper end surface of the wind shield and the top surface of the inner side of the drying chamber; a plurality of first through holes are formed in the wind shield; through the intercepting and diffusing effects of the wind shield on vertical hot air, after being intercepted by the wind shield, hot air diffuses towards the periphery along the surface of the wind shield and continuously diffuses towards the lower portion of the drying chamber to dry food in the drying chamber, the drying uniformity of the food in the drying chamber is effectively improved, and the drying efficiency is improved. And local overheating or too fast dehydration caused by the fact that hot air flow directly rushes to the surface of food right below is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying, and in particular relates to a windshield component and a drying device thereof. Background Art

[0002] In the drying process of meat products such as sausages, the distribution of hot air directly affects product quality and energy efficiency. When traditional drying equipment adopts a vertical air supply system, hot air is mostly introduced directly into the drying chamber from the top of the drying chamber. The hot air flow acts directly vertically downward on the surface of the material, which easily causes overheating and dehydration in local areas, while the temperature in other areas is insufficient. This uneven heat distribution not only affects the color, texture and nutritional content of the product, but also increases energy consumption. Therefore, there is a problem in the existing technology that the hot air flow directly hits the material directly below, causing local overheating or excessive dehydration of the material in the drying chamber. Utility Model Content

[0003] In view of the deficiencies of the prior art, the purpose of the present invention is to provide a windshield assembly and a drying device thereof, which solves the problem in the prior art that hot air flows directly towards the material below, causing local overheating or rapid dehydration of the material in the drying chamber.

[0004] The purpose of the utility model can be achieved through the following technical solutions:

[0005] A wind shield assembly is arranged in a drying room, and an air inlet slot is provided on the top of the drying room;

[0006] The windshield assembly includes a windshield plate and a connecting piece;

[0007] The windshield is placed horizontally just below the air inlet slot, and the vertical projection of the air inlet slot is completely located on the windshield;

[0008] One end of the connector is fixed to the ceiling of the drying chamber, and the other end is fixed to the wind shield;

[0009] A gap is left between the upper end surface of the wind shield and the inner top surface of the drying chamber for horizontal airflow;

[0010] A plurality of first through holes are formed on the windshield.

[0011] The air inlet slot and the wind shield are both rectangular in shape, and the air inlet slot and the wind shield are placed coaxially;

[0012] Any two opposite side walls in the drying chamber are defined as first chamber walls, and the other two opposite side walls are defined as second chamber walls;

[0013] The central axis of the air inlet slot or the wind shield in the vertical direction is located in the symmetry plane of the two first chamber walls;

[0014] The air inlet slot or the wind shield has a side wall that is placed parallel to the first chamber wall.

[0015] When the air inlet slot is set to be single, the air inlet slot is located near the center of the top surface of the drying chamber;

[0016] When there are multiple air inlet slots, there are correspondingly multiple wind shields, and the multiple wind shields are distributed at equal intervals along the horizontal axis.

[0017] The windshield assembly further includes a horizontally placed connecting plate, the connecting plate having a plurality of second through holes formed thereon, the connecting plate being used to be fixed to a side wall of the windshield and the second chamber wall, and the connecting plate being parallel to both side walls of the first chamber wall and flush with the windshield;

[0018] When there is a single windshield, the windshield is close to the two second chamber walls and the connecting plates are fixed;

[0019] When there are multiple windshields, a connecting plate is fixed between any two adjacent windshields;

[0020] The connecting plate and the wind shield plate together form a slat, and both ends of the slat extend to positions close to the second chamber walls on both sides respectively.

[0021] The plurality of first through holes on the windshield are evenly distributed;

[0022] The plurality of second through holes on the connecting plate are evenly distributed.

[0023] The diameter of the first through hole or the second through hole is 8 mm to 12 mm.

[0024] The hole spacing between any two adjacent first through holes or any two adjacent second through holes is 4-10 times the diameter of the corresponding hole.

[0025] The connecting piece is a fixed rod.

[0026] The connecting piece is a telescopic part, an output end of the telescopic part is connected to the windshield, and is used to drive the windshield to move up and down.

[0027] A drying device with a wind shield assembly comprises a drying chamber with an air inlet slot on the top and a wind shield assembly arranged just below the air inlet slot.

[0028] Beneficial effects of the utility model:

[0029] 1. The present invention uses the windshield to intercept and diffuse vertical hot air. After the hot air flow is intercepted by the windshield, the hot air flow spreads to the surrounding areas along the surface of the windshield, drying the food in the drying chamber, avoiding the hot air flow directly hitting the food surface below, which may cause local overheating or rapid dehydration, and effectively improving the uniformity of drying the food in the drying chamber.

[0030] By opening a plurality of first through holes on the windshield, part of the vertical hot air is allowed to directly pass through the windshield while maintaining the overall interception and diffusion of the vertical hot air, thereby compensating for the heat in the eddy current area, thereby improving temperature uniformity and enhancing drying quality;

[0031] 2. By setting up the connecting plate, the gap between the wind shield and the second chamber wall or between adjacent wind shields is closed, effectively preventing the main airflow from leaking directly downward without horizontal diffusion; and through the second through hole on the connecting plate, part of the hot air passes through the second through hole to perform temperature compensation on part of the lower end surface area of ​​the connecting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 This is a schematic diagram of the overall structure of the windshield assembly of the utility model;

[0034] Figure 2 This is a partial structural diagram of the windshield of the utility model;

[0035] Figure 3 This is a schematic diagram of the overall structure of the drying device of the present utility model;

[0036] Figure 4 This is a partial structural diagram of the air inlet slot of the utility model;

[0037] Figure 5 It is a partial structural diagram of the wind power component and the return air trough of the utility model. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] like Figures 1 to 5 As shown, a wind shield assembly is used to be arranged in the drying chamber 100; Figure 4 As shown, an air inlet slot 101 is provided on the top of the drying chamber 100;

[0040] The windshield assembly includes a windshield plate 201 and a connecting member 202;

[0041] The windshield 201 is placed horizontally just below the air inlet slot 101, and the vertical projection of the air inlet slot 101 is completely located on the windshield 201;

[0042] One end of the connecting member 202 is fixed to the top surface of the drying chamber 100, and the other end is fixed to the wind shield 201;

[0043] A gap is left between the upper end surface of the wind shield 201 and the inner top surface of the drying chamber 100 for airflow to pass horizontally;

[0044] like Figure 2 As shown, a plurality of first through holes 2011 are formed on the windshield 201;

[0045] During use, hot air for drying food is introduced into the drying chamber 100 through the air inlet slot 101, and the hot air rushes vertically toward the wind shield 201. The present application utilizes the interception and diffusion effect of the wind shield 201 on the vertical hot air. After the hot air flow is intercepted by the wind shield 201, the hot air flow diffuses to the surroundings along the surface of the wind shield 201 and continuously diffuses into the drying chamber 100, drying the food in the drying chamber 100, avoiding the hot air flow directly hitting the surface of the material directly below, which may cause local overheating or excessive dehydration, thereby effectively improving the uniformity of drying the food in the drying chamber 100.

[0046] However, due to the setting of the wind shield 201, the area close to the lower end surface of the wind shield 201 forms a local vortex due to air flow separation, which leads to a decrease in heat exchange efficiency in this area and the formation of a local low-temperature area; in order to solve the above problem, in this application, a plurality of first through holes 2011 are opened on the wind shield 201. Under the premise of maintaining the overall interception and diffusion of vertical hot air, part of the vertical hot air is allowed to directly pass through the wind shield 201 to compensate for the heat in the vortex area, thereby improving temperature uniformity and improving drying quality.

[0047] The air inlet slot 101 and the wind shield 201 are both rectangular in shape, and the air inlet slot 101 and the wind shield 201 are placed coaxially;

[0048] Any two opposite side walls in the drying chamber 100 are defined as first chamber walls 102 , and the other two opposite side walls are defined as second chamber walls 103 ;

[0049] The vertical central axis of the air inlet slot 101 or the wind shield 201 is located in the symmetry plane of the two first chamber walls 102;

[0050] The air inlet slot 101 or the wind shield 201 has a side wall that is parallel to the first chamber wall 102;

[0051] It should be noted that two groups of wind components 400 are arranged in the drying chamber 100, and the two groups of wind components 400 are respectively arranged at the upper ends of the two first chamber walls 102. The wind components 400 on either side are used to generate an airflow horizontally toward the other wind component 400, and the wind components 400 on both sides work intermittently; when the wind components 400 on either side are working, the hot air intercepted and diffused by the wind shield 201 is blown to the other side, which not only accelerates the flow of hot air in the drying chamber 100, but also effectively reduces the dead corners of hot air flow; and the intermittent work of the wind components 400 on both sides is coordinated to alternately blow the hot air to both sides, which can avoid the hot air always blowing to one end, thereby improving the uniformity of drying the materials in the drying chamber 100;

[0052] The present application designs the air inlet slot 101 and the wind shield 201 as a coaxial rectangular structure, and makes their vertical central axes coplanar with the central symmetry plane of the two first chamber walls 102, while keeping the distances between the two side edges of the wind shield 201 and the first chamber walls 102 symmetrically equal. This design enables the hot air flow to form a symmetrical diffusion pattern, ensuring that the hot air flow has the same path when it diffuses from the wind shield 201 to the first chamber wall 102 on either side, thereby improving the uniformity of drying of materials in the drying chamber 100.

[0053] When the air inlet slot 101 is set to be single, the air inlet slot 101 is located near the center of the top surface of the drying chamber 100;

[0054] When there are multiple air inlet slots 101, there are correspondingly multiple wind shields 201, and the multiple wind shields 201 are distributed at equal intervals along the horizontal axis direction;

[0055] For a small drying chamber 100 with a volume less than or equal to 10 cubic meters, one air inlet slot 101 and wind shield 201 can meet the drying requirements;

[0056] For a large drying chamber 100 with a volume greater than 10 cubic meters, multiple air inlet slots 101 need to be arranged to meet the drying requirements; the arrangement of the air inlet slots 101 at equal intervals effectively improves the uniformity of the hot air distribution in the drying chamber 100 and reduces the temperature difference between local areas;

[0057] The windshield assembly further includes a horizontally placed connecting plate 203 having a plurality of second through holes 2031 formed therein. The connecting plate 203 is used to be fixed to a side wall of the windshield 201 and the second chamber wall 103 , and the connecting plate 203 is parallel to both side walls of the first chamber wall 102 and flush with the windshield 201 ;

[0058] When there is only one windshield plate 201, the connecting plates 203 are fixed on both sides of the windshield plate 201 close to the two second chamber walls 103;

[0059] When there are multiple windshields 201, a connecting plate 203 is fixed between any two adjacent windshields 201;

[0060] The connecting plate 203 and the wind shield 201 together form a slat, and both ends of the slat extend to positions close to the second chamber walls 103 on both sides;

[0061] The portion of hot air that is intercepted by the windshield 201 and diffuses outward along the surface of the windshield 201 is defined as the main airflow, while the portion that passes through the first through hole 2011 and performs temperature compensation on the area below the windshield 201 is defined as the branch airflow.

[0062] The purpose of the connection plate 203 in the present application is to close the gap between the wind shield 201 and the second chamber wall 103 or between adjacent wind shields 201, effectively preventing the main airflow from leaking directly downward without horizontal diffusion. This design forces the main airflow to participate as much as possible in the alternating diffusion process on both sides driven by the wind assembly 400.

[0063] Part of the hot air passes through the second through hole 2031 on the connecting plate 203 , thereby performing temperature compensation on a part of the lower end surface of the connecting plate 203 .

[0064] The plurality of first through holes 2011 on the windshield 201 are evenly distributed;

[0065] The plurality of second through holes 2031 on the connecting plate 203 are evenly distributed;

[0066] By uniformly distributing the first through holes 2011 or the second through holes 2031, the uniformity of temperature compensation in the area near the lower end surface of the wind shield 201 or the connecting plate 203 is effectively improved; at the same time, the control of the hole spacing and the hole diameter takes into account the interception and diffusion effect of the wind shield 201 on the hot air, and enables part of the hot air to be successfully compensated by the wind shield 201 or the connecting plate 203 below.

[0067] Preferably, in the embodiment of the present application, the windshield 201 is set to be 800 mm wide and 2000 mm long. The plurality of first through holes 2011 on the windshield 201 are arranged in multiple rows along the width direction, each row including a plurality of first through holes 2011 distributed at equal intervals, the hole spacing between the first through holes 2011 in two adjacent rows is set to 100 mm, and the hole spacing between two adjacent first through holes 2011 in the same row is 50 mm.

[0068] The diameter of the first through hole 2011 or the second through hole 2031 is 8 mm to 12 mm. Preferably, in the embodiment of the present application, the diameter of the first through hole 2011 or the second through hole 2031 is set to 10 mm.

[0069] Generally, the opening ratio of the windshield 201 can be adaptively adjusted according to the volume of the area to be compensated below the windshield 201 and the drying chamber 100. The preferred opening ratio is generally 0.8% to 5%.

[0070] Assume that the spacing between two adjacent rows of first through holes 2011 is s , the distance between two adjacent first through holes 2011 in any row is also s ; Define the diameter of the first through hole 2011 as d ;

[0071] Opening rate The calculation formula is as follows:

[0072]

[0073] According to the opening rate The calculation formula can be obtained:

[0074]

[0075] When the opening rate When it is 5%, we can get is 3.96;

[0076] When the opening rate is 3%, the calculation can be obtained is 5.12;

[0077] When the opening rate is 2%, it can be calculated that is 6.27;

[0078] When the opening rate is 1%, it can be calculated that is 8.86;

[0079] When the opening rate is 0.8%, it can be calculated that is 9.91;

[0080] Taking into account the machining accuracy and manufacturing process, the hole spacing between any two adjacent first through holes 2011 or any two adjacent second through holes 2031 is 4-10 times the diameter of the corresponding hole.

[0081] The connecting member 202 is a fixing rod, which fixes the wind shield 201 to the inner top surface of the drying chamber 100.

[0082] The connecting member 202 is a telescopic part, the output end of which is connected to the windshield 201 and is used to drive the windshield 201 to move up and down;

[0083] Preferably, the telescopic part can be a telescopic cylinder or an electric push rod. If a telescopic cylinder is used, the cylinder section of the telescopic cylinder can be fixed to the top of the drying chamber 100, and the telescopic rod of the telescopic cylinder can be fixed to the windshield 201.

[0084] According to the size or velocity of the hot air flow in the air inlet slot 101 or the type of food to be dried, the wind shield 201 and the connecting plate 203 can be driven by the telescopic portion to adjust their height.

[0085] It should be noted that there may be one or more connecting members 202 arranged on the same windshield 201, and the number can be selected according to actual needs.

[0086] A drying device with a wind shield assembly comprises a drying chamber 100 and the wind shield assembly, wherein the wind shield assembly is arranged directly below an air inlet slot 101;

[0087] It should be noted that the drying device further comprises a main unit 300 and a pair of symmetrically arranged wind power components 400;

[0088] like Figure 3 As shown, the main unit 300 is located outside the drying chamber 100. The main unit 300 is used for temperature control and dehumidification. The main unit 300 is provided with a return air vent for air intake and an air supply vent for air supply.

[0089] The number of main units 300 is equal to the number of air inlet slots 101 and corresponds one to one. The air outlets of the main units 300 are all connected to the corresponding air inlet slots 101 through the air ducts 500.

[0090] like Figure 5 As shown, a return air slot 104 is opened near the lower end of any first wall 102 of the drying chamber 100. The number of return air slots 104 is equal to and corresponds to the number of the main units 300. The return air slots 104 are all connected to the return air outlet of the corresponding main unit 300.

[0091] The two wind power assemblies 400 are respectively arranged near the upper ends of the two first chamber walls 102. Each wind power assembly 400 is used to generate an airflow horizontally toward the other wind power assembly 400, and the two wind power assemblies 400 work intermittently and alternately.

[0092] Preferably, the wind power assembly 400 includes a plurality of fans fixed in the drying chamber 100, and the plurality of fans are distributed at equal intervals along a horizontal axis parallel to the first chamber wall 102;

[0093] The drying chamber 100 is provided with at least one door;

[0094] It should be noted that the host 300 may adopt the integrated heat pump dryer described in the Chinese patent application number CN202230027668.0, or the drying body described in the Chinese patent application CN201620454527.6 "A closed internal circulation tobacco drying device", which integrates a heating mode, a dehumidification mode, a heating and dehumidification mode, etc. Since the host 300 belongs to the prior art, its specific structure will not be described in detail in this application;

[0095] The specific operation process of the drying device is as follows: before drying, the chamber door is opened and the food rack is pushed into the drying chamber 100; then the main unit 300 is turned on, and the main unit 300 inputs the heated air into the air duct 500 through the air supply port. The hot air in the air duct 500 passes through the air inlet slot 101 and enters the drying chamber 100. The hot air acts vertically on the wind shield 201, and is intercepted by the wind shield 201 so that the hot air spreads around along the wind shield 201, preventing the hot air from directly hitting the food surface and causing local overheating or excessive dehydration.

[0096] At the same time, turning on the wind assembly 400 on either side generates a horizontal airflow, blowing the hot air toward the side of the drying chamber 100 close to the other wind assembly 400, which helps to ensure that the hot air flows in the drying chamber 100 and effectively covers the entire drying chamber 100 area, reducing dead corners, and accelerating the flow of hot air through the wind assembly 400 to improve the drying effect. The intermittent alternating operation of the two wind assemblies 400 can avoid the hot air always blowing to one end, thereby improving the uniformity of food drying in the drying chamber 100; and cooperate with the return air port of the main unit 300 to continuously suck the gas in the drying chamber 100 back into the main unit 300, and the return gas is temperature-controlled and dehumidified by the main unit 300, and the heated gas is again input into the drying chamber 100 through the air supply port and the air duct 500, thereby realizing the circulation of gas in the drying chamber 100.

[0097] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0098] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention.

Claims

1. A windshield assembly, arranged in a drying chamber (100), wherein an air inlet slot (101) is provided on the top of the drying chamber (100), characterized in that: The windshield assembly comprises a windshield plate (201) and a connecting member (202); The windshield (201) is horizontally placed directly below the air inlet slot (101), and the projection of the air inlet slot (101) in the vertical direction is completely located on the windshield (201); One end of the connecting member (202) is fixed to the top surface of the drying chamber (100), and the other end is fixed to the windshield (201); A gap for airflow to pass horizontally is left between the upper end surface of the windshield (201) and the inner top surface of the drying chamber (100); A plurality of first through holes (2011) are provided on the windshield (201).

2. The windshield assembly according to claim 1, characterized in that: The air inlet slot (101) and the wind shield (201) are both rectangular in shape, and the air inlet slot (101) and the wind shield (201) are coaxially arranged; Any two opposite side walls in the drying chamber (100) are defined as first chamber walls (102), and the other two opposite side walls are defined as second chamber walls (103); The central axis of the air inlet slot (101) or the wind shield (201) in the vertical direction is located in the symmetry plane of the two first chamber walls (102); The air inlet slot (101) or the wind shield (201) both have side walls that are placed parallel to the first chamber wall (102).

3. The windshield assembly according to claim 1 or 2, characterized in that: When the air inlet slot (101) is set to be single, the air inlet slot (101) is located near the center of the top surface of the drying chamber (100); When the number of air inlet slots (101) is multiple, the number of wind shields (201) is correspondingly multiple, and the multiple wind shields (201) are distributed at equal intervals along the horizontal axis direction.

4. The windshield assembly according to claim 3, characterized in that: It also includes a horizontally placed connecting plate (203), with a plurality of second through holes (2031) formed on the connecting plate (203), and the connecting plate (203) is used to be fixed on a side wall of the windshield (201) and the second chamber wall (103), and the connecting plate (203) is parallel to the two side walls of the first chamber wall (102) and flush with the windshield (201); When the wind shield (201) is single, the connecting plates (203) are fixed to the sides of the wind shield (201) close to the two second chamber walls (103); When there are multiple windshields (201), a connecting plate (203) is fixed between any two adjacent windshields (201); The connecting plate (203) and the wind shield (201) together form a slat, and both ends of the slat extend to positions close to the second chamber walls (103) on both sides.

5. The windshield assembly according to claim 4, characterized in that: The plurality of first through holes (2011) on the windshield (201) are evenly distributed; The plurality of second through holes (2031) on the connecting plate (203) are evenly distributed.

6. The windshield assembly according to claim 5, characterized in that: The diameter of the first through hole (2011) or the second through hole (2031) is 8 mm to 12 mm.

7. The windshield assembly according to claim 6, characterized in that: The hole spacing between any two adjacent first through holes (2011) or any two adjacent second through holes (2031) is 4-10 times the diameter of the corresponding hole.

8. The windshield assembly according to claim 1, wherein: The connecting member (202) is a fixing rod.

9. The windshield assembly according to claim 1, wherein: The connecting member (202) is a telescopic portion, the output end of which is connected to the windshield (201) and is used to drive the windshield (201) to move upward and downward.

10. A drying device with a wind shield assembly, characterized in that: It comprises a drying chamber (100) with an air inlet slot (101) provided on the top and a wind shield assembly as described in any one of claims 1 to 9, wherein the wind shield assembly is arranged directly below the air inlet slot (101).

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