Air supply assembly for cured meat air-drying production and cured meat air-drying production equipment thereof

Abstract

The utility model belongs to the technical field of food processing, and discloses a cured meat air-drying manufacturing air supply assembly and cured meat air-drying manufacturing equipment thereof, the cured meat air-drying manufacturing air supply assembly comprises an air inlet pipe, and the section of the air inlet pipe is gradually reduced in the length direction; an air inlet is formed in one end of the air inlet pipe relative to the widest section, and low-temperature and low-humidity air is introduced into the air inlet; one end of the air inlet pipe with the relatively narrowest section is closed; at least two air outlets are formed in the air inlet pipe in the length direction of the air inlet pipe; and the flow guide plate assembly is arranged below the air inlet pipe. The structure that the variable-cross-section air supply pipe, the vertically-arranged air outlets and the flow guide plate assemblies are combined is adopted, the flow guide plate assemblies are used for changing the air directions of the air outlets in the two sides, disturbance is generated in the air drying fermentation chamber, effective air flow is formed, and air circulation dead angles are avoided; therefore, the relative air-drying uniformity of materials in the air-drying fermentation chamber within a period of time is improved, and the air-drying effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of food processing, and in particular relates to an air supply component for making air-dried cured meat and equipment for making air-dried cured meat. Background Art

[0002] In the field of agricultural and sideline product processing, storage and transportation, drying is one of the most widely used methods. For some fruits and vegetables and some meat products, low-temperature drying is an important part of their production process. The degree and uniformity of drying are important indicators for evaluating the quality of materials. In the batch production process of enterprises, due to the uneven airflow organization in the drying equipment, such as in some air-drying fermentation room equipment (such as Fig.10 The air inlet pipe (as shown) is installed on both sides of the top of the air drying and fermentation chamber equipment. Low-temperature and low-humidity air enters from one end of the air inlet pipe, and is discharged from the air outlet on the lower surface of the air inlet pipe, thereby introducing low-temperature and low-humidity air into the air drying and fermentation chamber. The low-temperature and low-humidity air dries the materials stored in the air drying and fermentation chamber at low temperature. The low-temperature and low-humidity air is discharged from the air outlet and flows vertically downward to the bottom of the air drying and fermentation chamber. The bottom of the air drying and fermentation chamber is in a flat state. After the low-temperature and low-humidity air contacts the bottom of the air drying and fermentation chamber, due to the lack of the setting of the guide component, this will reduce the tendency of the low-temperature and low-humidity air to flow and diffuse to the material, affecting the effect of air drying the material inside the air drying and fermentation chamber for a period of time. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the present utility model is to provide an air supply component for air-drying cured meat and equipment for air-drying cured meat. The present application adopts a structure in which a variable-section air supply duct and vertically arranged air outlets are combined with a guide plate component. The guide plate component is used to change the wind direction of the air outlets on both sides to generate disturbances in the air-drying and fermentation chamber, thereby forming effective air flow and avoiding dead corners in air circulation, thereby improving the relative uniformity of the air-drying of materials inside the air-drying and fermentation chamber over a period of time and improving the air-drying effect.

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

[0005] The air supply component for making air-dried cured meat includes an air inlet pipe, the cross section of which gradually decreases along the length direction;

[0006] One end of the air inlet pipe with a wide cross section is an air inlet, and the air inlet is introduced into the air with low temperature and low humidity;

[0007] One end of the air inlet pipe with a narrow cross section is in a closed shape;

[0008] At least two air outlets are arranged on the air inlet pipe along the length direction of the air inlet pipe;

[0009] A guide plate assembly, wherein the guide plate assembly is arranged below the air inlet pipe;

[0010] The guide plate assembly is a concave arc guide plate, which is arranged directly below the air outlet. One side of the arc guide plate is fixedly connected to the inner side wall of the air-drying fermentation chamber, and the other side of the arc guide plate is fixedly connected to the bottom of the air-drying fermentation chamber.

[0011] The above technical solution, its principle and technical effect:

[0012] Low-temperature and low-humidity air enters from the air inlet of the air inlet duct, flows along the internal channel of the air inlet duct to the end with the narrowest cross section of the air inlet duct, and passes through multiple air outlets during the flow. Every time it passes through each air outlet, some air will flow out from the air outlet. If the air inlet duct uses an air inlet duct with the same cross section at the far and near ends to supply air, the wind pressure in the air inlet duct will gradually decrease as part of the air flows out. When the wind pressure decreases, the air flow rate will also decrease. Since the cross sections at the far and near ends of the air inlet duct are the same, the air volume passing through per unit time will also decrease, which will make the air volume at the far end outlet close to the air inlet duct and the air volume at the near end outlet close to the air inlet duct relatively different. The cross section of the air inlet pipe of the present application gradually decreases along the length direction. When the low-temperature and low-humidity air passes through each air outlet, although part of the air will flow out from the air outlet, the cross section of the air inlet pipe is also gradually reduced. Therefore, the wind pressure inside the air inlet pipe can be quickly stabilized, so that the pressure inside the air inlet pipe remains relatively uniform. When the wind pressure is relatively uniform, the air volume flowing out of each air outlet will also remain relatively uniform, so that the air volume near the far end of the air inlet pipe and the air volume near the near end of the air inlet pipe will be relatively small. The present application adopts a structure combining a variable cross-section air supply pipe and a vertically arranged air outlet with a guide plate assembly. The guide plate assembly is used to change the wind direction of the air outlets on both sides, so that it generates disturbances in the air-drying and fermentation chamber, forms effective air flow, and avoids the generation of dead corners for air circulation, thereby improving the relative uniformity of the air drying of the materials inside the air-drying and fermentation chamber over a period of time and improving the air drying effect.

[0013] In a preferred example, the utility model can be further configured as follows: there are two air inlet pipes, and the two air inlet pipes are arranged side by side on both sides of the top of the air-drying and fermentation chamber;

[0014] There are two guide plate assemblies, and the two guide plate assemblies are arranged side by side on both sides of the bottom end of the air-drying fermentation chamber.

[0015] In a preferred example, the utility model can be further configured as follows: the outer side surface of the air inlet pipe is parallel to the inner side wall of the air drying and fermentation chamber;

[0016] The inner side surface of the air inlet pipe is inclined;

[0017] The cross section of the air inlet pipe is gradually reduced along the length direction.

[0018] In a preferred example, the utility model can be further configured as follows: the air outlet is close to the outer side surface of the air inlet pipe;

[0019] The lines along at least two of the air outlets are parallel to the edge ridges of the outer side surfaces of the air inlet pipe.

[0020] In a preferred example, the utility model can be further configured as follows: the distances between adjacent air outlets are equal.

[0021] In a preferred example, the utility model can be further configured as follows: the air outlet of the air inlet pipe faces vertically downward, the cross-sectional shape of the air outlet is a rectangle or a circle, and the cross-sectional shape of the air outlet gradually decreases from top to bottom.

[0022] In a preferred example, the utility model can be further configured as follows: the air inlets of the two air inlet pipes are connected to a connecting pipe, the middle of the connecting pipe is connected to a follower pipe, and the air outlet of the fan is connected to the follower pipe;

[0023] An electric air valve is installed between the air inlet of the air inlet pipe and the connecting pipe, and the electric air valve is used to control the connection state between the air inlet pipe and the connecting pipe.

[0024] In a preferred example, the utility model can be further configured as follows: the guide plate assembly includes a first guide plate, a second guide plate and a third guide plate, the first guide plate is rotatably connected to the second guide plate, and the second guide plate is rotatably connected to the third guide plate;

[0025] Two ends of the first guide plate are provided with vertical slide rails, a vertical first slide groove and a vertical second slide groove are provided on the vertical slide rails, a first slider is slidably connected in the vertical first slide groove, a first connecting shaft is rotatably connected to the first slider, the first connecting shaft is fixedly connected to the end portion of the upper end of the first guide plate, a first threaded column is fixedly connected to the first slider, and the first threaded column passes through the vertical second slide groove and is threadedly connected to a first adjusting nut;

[0026] Two ends of the third guide plate are provided with transverse slide rails, one end of the transverse slide rail is fixedly connected to the lower end of the vertical slide rail, a transverse first slide groove and a transverse second slide groove are provided on the transverse slide rail, a second slider is slidably connected in the first transverse slide groove, a second connecting shaft is rotatably connected to the second slider, the second connecting shaft is fixedly connected to the end of the lower end of the third guide plate, a second threaded column is fixedly connected to the second slider, and the second threaded column passes through the second transverse slide groove and is threadedly connected to a second adjusting nut;

[0027] The upper and lower ends of the two ends of the second guide plate are rotatably connected with a rotating head, and a third threaded column is slidably connected to the rotating head. The third threaded column at the upper end of the rotating head is threadedly connected with a third adjusting nut, and a spring is sleeved on the third threaded column at the lower end of the rotating head. The lower ends of the two third threaded columns at the same end of the second guide plate are rotatably connected to the same connecting pin, and the connecting pin is fixedly connected to the inner side of the connection between the vertical slide rail and the horizontal slide rail.

[0028] Equipment for making cured meat air-drying, comprising an air supply component for making cured meat air-drying.

[0029] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0030] Fixed connection refers to a connection in which parts or components are fixed without any relative movement. There are two types of connection: detachable and non-detachable.

[0031] (1) Removable connections use screws, splines, wedge pins, etc. to fasten parts together. This type of connection can be disassembled for maintenance without damaging the parts. However, the specifications of the connectors used must be correct (such as the length of the bolts, keys, and wedge pins) and they must be properly tightened.

[0032] (2) Non-detachable connections mainly refer to welding, riveting and tenoning. Since they need to be disassembled by forging, sawing or oxygen cutting during maintenance or replacement, spare parts generally cannot be reused. At the same time, when making connections, attention should be paid to process quality, technical inspection and remedial measures (such as calibration, polishing, etc.).

[0033] A threaded connection refers to a detachable connection in which the connected parts are connected together using threaded parts (or the threaded part of the connected parts).

[0034] A sliding connection is when two objects are in contact but not fixed and can slide relative to each other.

[0035] A rotational connection is a connection between parts that allows the parts to rotate relative to each other.

[0036] Beneficial effects of the utility model:

[0037] 1. The present application adopts a structure that combines a variable-section air supply duct and vertically arranged air outlets with a guide plate assembly. The guide plate assembly is used to change the wind direction of the air outlets on both sides, so that disturbances are generated in the air-drying and fermentation chamber, forming effective air flow and avoiding dead corners in air circulation, thereby improving the relative uniformity of air drying of materials inside the air-drying and fermentation chamber over a period of time and improving the air drying effect.

[0038] 2. The cross-section of the air inlet duct of the present application gradually decreases along the length direction. When the low-temperature and low-humidity air passes through each air outlet, although part of the air will flow out from the air outlet, the cross-section of the air inlet duct is also gradually decreasing. Therefore, the wind pressure inside the air inlet duct can be quickly stabilized so that the pressure at various locations inside the air inlet duct remains relatively uniform. When the wind pressure is relatively uniform, the air volume flowing out of each air outlet will also remain relatively uniform, which will make the difference between the air volume at the far end air outlet close to the air inlet duct and the air volume at the near end air outlet close to the air inlet duct relatively small. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0040] Figure 1 This is a schematic diagram of the air supply pipe structure of an embodiment of the utility model;

[0041] Figure 2 This is a schematic diagram of the internal structure of the first air-drying fermentation chamber of the utility model embodiment;

[0042] Figure 3 This is a schematic diagram of the internal structure of the second air-drying fermentation chamber of the utility model embodiment;

[0043] Figure 4 This is a schematic diagram of the structure of a guide plate assembly in one embodiment of the utility model;

[0044] Figure 5 It is an embodiment of the utility model Figure 4 Schematic diagram of the structure at A in the middle;

[0045] Figure 6 This is a schematic diagram of the structure of an air inlet pipe in which the air outlet of an embodiment of the utility model is a square cone structure;

[0046] Figure 7 This is a schematic diagram of the structure of an air inlet pipe in which the air outlet of an embodiment of the utility model is a conical structure;

[0047] Figure 8 This is a schematic diagram of the first part of the electric valve structure of the utility model embodiment;

[0048] Fig. 9 This is a schematic diagram of the structure of the second part of the electric valve of the embodiment of the utility model;

[0049] Fig.10 It is a schematic diagram of the internal structure of the air-dried fermentation chamber in the prior art;

[0050] Fig.11 It is a velocity cloud diagram of the air inlet pipe of an embodiment of the utility model;

[0051] Fig.12 It is a velocity distribution diagram of the air outlet at different tapers of an embodiment of the utility model. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] According to the concept of this application, Figures 1 to 9The following describes an embodiment of the air supply component for air-drying cured meat. Specifically, the air supply component for air-drying cured meat is constructed as a split structure, which has a structure such as an air supply pipe 24, an air outlet 25, and a guide plate component 5. Low-temperature and low-humidity air enters from the air inlet 241 of the air inlet pipe 24, flows along the internal channel of the air inlet pipe 24 to the end of the air inlet pipe 24 with the narrowest cross-section. During the flow, the low-temperature and low-humidity air will pass through multiple air outlets 25. Whenever passing through each air outlet 25, part of the air will flow out from the air outlet 25. If the air inlet duct 24 uses the same cross-section at the far and near ends to supply air, the wind pressure in the air inlet duct 24 will gradually decrease as part of the air flows out. When the wind pressure decreases, the air flow rate will also decrease. Since the cross-sections at the far and near ends of the air inlet duct 24 are the same, the air volume passing through per unit time will also decrease. This will cause the air volume at the far end air outlet 25 near the air inlet duct 24 and the air volume at the near end air outlet 25 near the air inlet duct 24 to be relatively different. The cross-section of the air inlet pipe 24 of the present application gradually decreases along the length direction. When the low-temperature and low-humidity air passes through each air outlet 25, although part of the air will flow out from the air outlet 25, the cross-section of the air inlet pipe 24 is also gradually decreasing. Therefore, the wind pressure inside the air inlet pipe 24 can be quickly stabilized, so that the pressure at various locations inside the air inlet pipe 24 remains relatively uniform. When the wind pressure is relatively uniform, the air volume flowing out of each air outlet 25 will also remain relatively uniform, which will make the air volume of the far-end air outlet 25 close to the air inlet pipe 24 and the air volume of the near-end air outlet 25 close to the air inlet pipe 24 relatively small. The present application adopts a structure in which a variable-section air supply duct 24 and vertically arranged air outlets 25 are combined with a guide plate assembly 5. The guide plate assembly 5 is used to change the wind direction of the air outlets 25 on both sides, so that disturbances are generated in the air-drying and fermentation chamber, forming effective air flow and avoiding dead corners in air circulation, thereby improving the relative uniformity of air drying of materials inside the air-drying and fermentation chamber over a period of time and improving the air drying effect.

[0055] like Figures 1 to 9 As shown, the air supply assembly for air-drying cured meat includes an air inlet pipe 24, and the cross section of the air inlet pipe 24 gradually decreases along the length direction;

[0056] One end of the wide cross section of the air inlet pipe 24 is an air inlet 241, and the air inlet 241 allows low-temperature and low-humidity air to pass through;

[0057] One end of the narrow cross-section of the air inlet pipe 24 is closed;

[0058] The air inlet pipe 24 is provided with at least two air outlets 25 along the length direction of the air inlet pipe 24;

[0059] The guide plate assembly 5 is arranged below the air inlet pipe 24 .

[0060] Low-temperature and low-humidity air enters from the air inlet 241 of the air inlet duct 24, and flows along the internal channel of the air inlet duct 24 to the end of the air inlet duct 24 with the narrowest cross-section. During the flow, the low-temperature and low-humidity air will pass through multiple air outlets 25, and each time it passes through each air outlet 25, part of the air will flow out from the air outlet 25.

[0061] If the air inlet duct 24 uses the same cross-section at the far and near ends to supply air, the wind pressure in the air inlet duct 24 will gradually decrease as part of the air flows out. When the wind pressure decreases, the air flow rate will also decrease. Since the cross-sections at the far and near ends of the air inlet duct 24 are the same, the air volume passing through per unit time will also decrease. This will cause the air volume at the far end air outlet 25 near the air inlet duct 24 and the air volume at the near end air outlet 25 near the air inlet duct 24 to be relatively different.

[0062] The cross-section of the air inlet pipe 24 of the present application gradually decreases along the length direction. When the low-temperature and low-humidity air passes through each air outlet 25, although part of the air will flow out from the air outlet 25, the cross-section of the air inlet pipe 24 is also gradually decreasing. Therefore, the wind pressure inside the air inlet pipe 24 can be quickly stabilized, so that the pressure at various locations inside the air inlet pipe 24 remains relatively uniform. When the wind pressure is relatively uniform, the air volume flowing out of each air outlet 25 will also remain relatively uniform, which will make the air volume of the far-end air outlet 25 close to the air inlet pipe 24 and the air volume of the near-end air outlet 25 close to the air inlet pipe 24 relatively small.

[0063] The present application adopts a structure in which a variable-section air supply duct 24 and vertically arranged air outlets 25 are combined with a guide plate assembly 5. The guide plate assembly 5 is used to change the wind direction of the air outlets 25 on both sides, so that disturbances are generated in the air-drying and fermentation chamber, forming effective air flow and avoiding dead corners in air circulation, thereby improving the relative uniformity of air drying of materials inside the air-drying and fermentation chamber over a period of time and improving the air drying effect.

[0064] Among them, the traditional cured meat production system simulates the natural outdoor drying environment in winter in a low-temperature circulating air drying room. The low-temperature and low-humidity air continuously absorbs moisture on the surface of the food during forced circulation; the air that reaches the saturated state passes through the evaporator. Due to the evaporation of the refrigerant in the evaporator, the surface temperature of the evaporator drops below the air dew point temperature. After passing through the evaporator, the air is cooled and moisture is precipitated, and the precipitated moisture is discharged from the storage body through the water collector; the low-temperature and low-humidity air then enters the condenser. Since the condenser flows with the high-temperature gaseous refrigerant from the compressor, the air is heated to form dry air; then it is mixed with the saturated air to generate low-temperature and low-humidity air for repeated circulation.

[0065] In one embodiment of the present invention, there are two air inlet pipes 24. Figure 2 As shown, Figure 2The figure is a schematic diagram of the internal structure of an air-drying fermentation chamber, wherein two air inlet pipes 24 are arranged side by side on both sides of the top of the air-drying fermentation chamber. There are two guide plate assemblies 5, which are arranged side by side on both sides of the bottom of the air-drying fermentation chamber. In actual use, an air-drying rack will be installed in the air-drying fermentation chamber, and the materials to be air-dried will be hung on the air-drying rack. The low-temperature and low-humidity air will be discharged downward from the air outlet 25 of the air inlet pipe 24, and then guided by the guide plate assembly 5, so that the low-temperature and low-humidity air will flow to the materials. As the air flow path increases, when the air flows to the materials, the low-temperature and low-humidity air has spread out, and can rush to the materials over a large area. The low-temperature and low-humidity air will dry the materials stored in the air-drying fermentation chamber at a low temperature.

[0066] In one embodiment of the present invention, Figure 2 As shown, the definition is: the side of the air inlet pipe 24 close to the inner side wall of the air-drying and fermenting chamber is the outer side, and the opposite sides of the two air inlet pipes 24 are the inner side. The outer side of the air inlet pipe 24 is parallel to the inner side wall of the air-drying and fermenting chamber, and the inner side of the air inlet pipe 24 is inclined, so that the cross section of the air inlet pipe 24 gradually decreases along the length direction. From the processing point of view, it is only necessary to control the inner side surface to be inclined to reach the required taper, which is convenient for the processing and production of the air inlet pipe 24. Of course, in some embodiments, the inner side surface of the air inlet pipe 24 is parallel to the inner side wall of the air-drying and fermenting chamber, and the outer side surface of the air inlet pipe 24 is inclined, so that the cross section of the air inlet pipe 24 gradually decreases along the length direction. Of course, in other embodiments, the outer side surface and the inner side surface of the air inlet pipe 24 are inclined toward each other, so that the cross section of the air inlet pipe 24 gradually decreases along the length direction.

[0067] In one embodiment of the utility model, when the outer side surface of the air inlet pipe 24 is parallel to the inner side wall of the air drying and fermentation chamber, and the inner side surface of the air inlet pipe 24 is inclined, so that the cross section of the air inlet pipe 24 gradually decreases along the length direction, the lines along at least two air outlets 25 are parallel to the edge ridge line of the outer side surface of the air inlet pipe 24. Of course, in some embodiments, when the inner side surface of the air inlet pipe 24 is parallel to the inner side wall of the air drying and fermentation chamber, and the outer side surface of the air inlet pipe 24 is inclined, so that the cross section of the air inlet pipe 24 gradually decreases along the length direction, at this time, the lines along at least two air outlets 25 are parallel to the edge ridge line of the inner side surface of the air inlet pipe 24. Of course, in other embodiments, when the outer side surface and the inner side surface of the air inlet pipe 24 are inclined toward each other, and the inclination angle is the same, so that the cross section of the air inlet pipe 24 gradually decreases along the length direction. At this time, the lines along at least two air outlets 25 coincide with the mirror symmetric surface of the air inlet pipe 24.

[0068] In one embodiment of the present invention, the air outlet 25 of the air inlet pipe 24 faces vertically downward. Figure 2 and Figure 3As shown, it can be seen that since the two air inlet pipes 24 are arranged side by side on both sides of the top of the air-drying and fermentation chamber, the air outlet 25 of the air inlet pipe 24 is arranged to be vertically downward, so that the low-temperature and low-humidity air flows vertically downward to the guide plate assembly 5, and then is guided by the guide plate assembly 5 to make the low-temperature and low-humidity air flow to the material. Since the air flow path is increased, the low-temperature and low-humidity air has diffused when the air flows to the material, and can rush to the material over a large area.

[0069] In one embodiment of the present invention, the air outlet 25 is close to the outer side of the air inlet pipe 24. Figure 2 and Figure 3 As shown, it can be seen that since the outer sides of the two air inlet pipes 24 are close to the inner side walls of the air-drying and fermentation chamber, when the air outlet 25 is set close to the outer side of the air inlet pipe 24, the air flowing out of the air outlet 25 can be guided by the inner side walls of the air-drying and fermentation chamber, so that the low-temperature and low-humidity air flows along the inner side walls of the air-drying and fermentation chamber to the guide plate assembly 5, and then through the guidance of the guide plate assembly 5, the low-temperature and low-humidity air flows to the material.

[0070] In one embodiment of the present invention, the spacing between adjacent air outlets 25 is equal. Since the cross-section of the air inlet pipe 24 decreases proportionally with the increase of the length, the spacing between adjacent air outlets 25 needs to be kept equal, so that the air volume of each air outlet 25 can be kept relatively uniform.

[0071] In one embodiment of the utility model, the cross-sectional shape of the air outlet 25 is a rectangle or a circle, and the cross-sectional shape of the air outlet 25 gradually decreases from top to bottom. Within a period of time, when the total air volume entering the air inlet pipe 24 remains unchanged, the air volume of each air outlet 25 also remains unchanged. Within a unit time, when the air volume remains unchanged, as the cross-sectional shape of the air outlet 25 gradually decreases, the wind speed will gradually increase, thereby increasing the wind pressure, so that the low-temperature and low-humidity air is transported further downward when it flows out of the air outlet 25.

[0072] In one embodiment of the utility model, the air inlets 241 of the two air inlet pipes 24 are connected to the connecting pipe 22, the middle of the connecting pipe 22 is connected to the follower pipe 26, and the air outlet of the fan 21 is connected to the follower pipe 26. In actual use, the fan 21 works to blow low-temperature and low-humidity air into the follower pipe 26, which flows into the two air inlet pipes 24 after being diverted by the connecting pipe 22, and then flows out from the air outlet 25 to air-dry the materials in the air-drying fermentation room. It should be noted that the follower pipe 26 needs to be connected to the middle position of the connecting pipe 22, in a natural state, to reduce the error of the air intake into the two air inlet pipes 24.

[0073] In one embodiment of the present invention, the follower pipe 26 has a certain elasticity. In the actual installation process, the fan 21 is fixedly installed, so when the fan 21 is working, it will vibrate, and the follower pipe 26 can be deformed such as expansion and contraction, so as to reduce the situation that the air inlet pipe 24 follows the vibration due to the vibration of the fan 21.

[0074] In one embodiment of the utility model, an electric air valve 23 is installed between the air inlet 241 of the air inlet pipe 24 and the connecting pipe 22, and the electric air valve 23 is used to control the connection state between the air inlet pipe 24 and the connecting pipe 22. Specifically, the wind of the two air inlet pipes 24 comes from the same fan 21, and the air volume of the air inlet pipes 24 on both sides is adjusted by adjusting the opening of the electric air valve 23. The opening of the electric air valve 23 can be continuously adjusted in the range of full open-full closed, so as to achieve different adjustments of the air volume of the air outlet 25 of the air inlet pipes 24 on both sides. The electric air valve 23 can be opened at the same time, and the air volume of the air supply on both sides is the same. The electric air valve 23 can also be fully opened on one side and fully closed on the other side. Then the fully opened one is gradually closed, and the fully closed one is gradually opened to achieve alternating air supply on the left and right.

[0075] In one embodiment of the utility model, the electric air valve 23 includes a housing 231, and a plurality of valves 232 are rotatably connected inside the housing 231. The connecting shaft at the lower end of the valve 232 penetrates the housing 231 and extends outward to be fixedly connected with a gear 233. One side of the plurality of gears 233 is meshed with a rack 234. The connecting shaft at the upper end of one of the valves 232 penetrates the housing 231 and extends outward to be fixedly connected with the output end of the motor 235. The motor 235 is fixedly connected to the housing 231. When the motor 235 drives one of the valves 232 to rotate, it will drive the gear 233 at the lower end of the valve 232 to rotate, and the gear 233 will drive the rack 234 to move along its length direction, thereby driving the rotation of the other plurality of gears 233, thereby realizing the synchronous rotation of the plurality of valves 232. When the plurality of valves 232 overlap each other head to tail, it is in a closed state. When the plurality of valves are parallel to each other, it is in a maximum open and closed state.

[0076] In one embodiment of the present invention, a slide groove 236 is provided on the rack 234 along its length direction, and two positioning pins 237 are slidably connected to the slide groove 236, and the positioning pins 237 are fixedly connected to the housing 231. When the motor 235 drives one of the valves 232 to rotate, it will drive the gear 233 at the lower end of the valve 232 to rotate, and the gear 233 will drive the rack 234 to move along its length direction, and the two positioning pins 237 are used to limit the rack 234 to move only along its length direction, so as to drive the rotation of the other multiple gears 233, thereby realizing the synchronous rotation of the multiple valves 232 and realizing the opening and closing action.

[0077] In one embodiment of the present invention, a stopper 238 having a diameter greater than the width of the slide slot 236 is fixedly connected to one end of the positioning pin 237 away from the housing 231. The setting of the stopper 238 can prevent the positioning pin 237 from being separated from the slide slot 236, thereby ensuring the meshing of the rack 234 and the gear 233.

[0078] In one embodiment of the utility model, the guide plate assembly 5 is a concave arc guide plate, which is arranged directly below the air outlet 25, one side of the arc guide plate is fixedly connected to the inner side wall of the air-drying and fermenting chamber, and the other side of the arc guide plate is fixedly connected to the bottom of the air-drying and fermenting chamber. The air flowing out of the air outlet 25 can be guided by the inner side wall of the air-drying and fermenting chamber, so that the low-temperature and low-humidity air flows along the inner side wall of the air-drying and fermenting chamber to the arc guide plate, and then guided by the arc guide plate, so that the low-temperature and low-humidity air flows to the material. Since the arc guide plates are symmetrically arranged, the low-temperature and low-humidity air can flow to the material from both sides of the material, thereby improving the effect of air-drying the material.

[0079] In one embodiment of the present utility model, a guide plate assembly 5 is provided below the air inlet pipe 24, and the guide plate assembly 5 includes a first guide plate 51, a second guide plate 52 and a third guide plate 53, the first guide plate 51 is rotatably connected to the second guide plate 52, and the second guide plate 52 is rotatably connected to the third guide plate 53;

[0080] Vertical slide rails 54 are provided at both ends of the first guide plate 51. A vertical first slide groove 541 and a vertical second slide groove 542 are provided on the vertical slide rail 54. A first slider 55 is slidably connected in the vertical first slide groove 541. A first connecting shaft 551 is rotatably connected to the first slider 55. The first connecting shaft 551 is fixedly connected to the end of the upper end of the first guide plate 51. A first threaded column 552 is fixedly connected to the first slider 55. The first threaded column 552 passes through the vertical second slide groove 542 and is threadedly connected to a first adjusting nut 553.

[0081] Both ends of the third guide plate 53 are provided with transverse slide rails 56, one end of which is fixedly connected to the lower end of the vertical slide rail 54, the transverse slide rail 56 is provided with a first transverse slide groove 561 and a second transverse slide groove 562, a second slider 57 is slidably connected in the first transverse slide groove 561, a second connecting shaft 571 is rotatably connected to the second slider 57, the second connecting shaft 571 is fixedly connected to the end of the lower end of the third guide plate 53, a second threaded column 572 is fixedly connected to the second slider 57, and the second threaded column 572 passes through the second transverse slide groove 562 and is threadedly connected to a second adjusting nut 573;

[0082] The upper and lower ends of both ends of the second guide plate 52 are rotatably connected with a rotating head 521, and a third threaded column 58 is slidably connected to the rotating head 521. The third threaded column 58 at the upper end of the rotating head 521 is threadedly connected with a third adjusting nut 581, and the third threaded column 58 at the lower end of the rotating head 521 is sleeved with a spring 582. The lower ends of the two third threaded columns 58 at the same end of the second guide plate 52 are rotatably connected to the same connecting pin 583, and the connecting pin 583 is fixedly connected to the inner side surface of the connection between the vertical slide rail 54 and the horizontal slide rail 56.

[0083] The wind flowing out of the air outlet 25 is directed to the guide plate assembly 5. By adjusting the relative position relationship of the first guide plate 51, the second guide plate 52 and the third guide plate 53, different guide directions can be adjusted and changed, thereby changing the disturbance of different wind directions, so that the flowing wind can better carry away the moisture on the surface of the material, thereby achieving a better air-drying effect.

[0084] Equipment for making cured meat air-drying, comprising an air supply component for making cured meat air-drying.

[0085] Simulation and results:

[0086] Since the air inlet pipe 24 is long, the wind speed at the air outlet 25 will directly affect the wind speed in the drying area, and the air outlets 25 have the same size. Research has found that the uniformity of wind speed distribution is mainly related to the taper of the air inlet pipe 24. The following uses fluent software to simulate and analyze the flow field of the air inlet pipe 24 in this application, and studies the effect of the taper of the air inlet pipe 24 on the speed of the air outlet 25 by changing the taper of the air inlet pipe 24:

[0087] As shown in Table 1, the parameters of each structure are set, the length of the air inlet pipe is a fixed value, and the taper expression is defined as:

[0088]

[0089] Where: C is the taper of the air inlet pipe; W is the width of the air inlet pipe at the starting end, in mm; L is the tail width, in mm. In the model, the width of the air inlet duct at the start is fixed at 700 mm. The tail width directly affects the taper. The smaller the width, the larger the taper.

[0090]

[0091] Table 1 is the structural parameter table

[0092] When the air inlet velocity is 14 m / s, the velocity of the flow field in the air inlet pipe is as follows: Fig.11As shown in the figure, it can be seen that as the air flows out from each outlet, its speed gradually decreases along the Y direction in the air inlet pipe until it reaches 0 at the end, and the change is relatively gentle. The air flow speed at the outlet changes rapidly, and the closer to the beginning, the more drastic the change. This is because the air flow direction in the pipe is inconsistent with the outlet flow direction. When flowing out, it deviates to one side of the outlet under the action of inertia. The air flow speed at the beginning of the air inlet pipe is faster than that at the end, so the deviation at the beginning is more obvious than that at the end.

[0093] Based on the characteristics of air flow velocity distribution at the air outlet, the ratio of the flow rate to the area of ​​a single air outlet is used to represent the wind speed at their respective outlets. The uniformity of the air outlet wind speed can represent the uniformity of the flow field in the fermentation room along the Y direction. There are 43 air outlets in total, 15 of which are selected at equal intervals as the research objects, and different inlet wind speeds are selected for simulation based on the actual situation, and the speed size and speed unevenness coefficient of each air outlet at different tapers of the air inlet pipe are obtained.

[0094] Fig.12 It is the velocity value of each air outlet when the inlet condition is 14m / s. As can be seen from the figure, the taper of the air inlet pipe has a greater impact on the air outlet velocity at both ends, but has a smaller impact on the velocity in the middle area. When C=7:2, the maximum speed and the minimum speed are 16.81m / s and 12.89m / s, respectively, with a difference of 3.92m / s. When C=7:7, the maximum speed and the minimum speed are 15.54m / s and 14.81m / s, respectively, with a difference of 0.73m / s. As the taper increases, the air outlet velocity changes from a downward trend to an upward trend from the beginning to the end. This is because as the taper increases, the cross-sectional area of ​​the air inlet pipe gradually decreases, resulting in an increase in the air flow velocity, forming a large dynamic pressure under the obstruction of the tail end face, and ultimately increasing the air flow velocity at the air outlet.

[0095] Tables 2 to 6 show that under the four conditions of 5m / s, 10m / s, 15m / s, and 20m / s, the change trend of the velocity non-uniformity coefficient of the air outlet is consistent, which is first reduced and then increased. The minimum values ​​are 0.0300, 0.0315, 0.0325, and 0.0332, which are basically the same. The corresponding air inlet tapers are 7:6, 7:5, 7:5, and 7:5. It can be seen that different inlet conditions have little effect on the value of the optimal taper, which only occurs when the inlet wind speed is low. Because the wind speed is low and the airflow kinetic energy is small, the uncertainty of the flow is increased in the 11m long air inlet pipe. When the fermentation room is working, the inlet wind speed is basically higher than 10m / s, so the influence of some extreme conditions can be ignored. It is concluded that when the tail width is 500mm, the air inlet pipe has the best taper of 7:5, and the air outlet uniformity is the best.

[0096]

[0097] Table 2 shows the velocity distribution of the air outlet at different tapers when the wind speed is 5m / s.

[0098]

[0099] Table 3 shows the velocity distribution of the air outlet at different tapers when the wind speed is 10m / s.

[0100]

[0101] Table 4 shows the velocity distribution of the air outlet at different tapers when the wind speed is 15m / s.

[0102]

[0103] Table 5 shows the velocity distribution of the air outlet at different tapers when the wind speed is 20m / s.

[0104]

[0105] Table 6 shows the distribution of velocity non-uniformity coefficients at different wind speeds and tapers.

[0106] In summary: the taper of the air inlet pipe mainly affects the air volume at both ends of the air outlet. As the tail width increases, the air volume at the beginning of the air outlet gradually increases and the end gradually decreases. When the tail width is 500mm, the air outlet velocity unevenness coefficient reaches the minimum value, and the air supply uniformity of the air inlet pipe is the best. Comparison of different inlet conditions shows that the change of the air supply volume of the air inlet pipe does not change the above conclusion.

[0107] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0108] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. An air supply component for air-drying cured meat, comprising an air inlet pipe (24), characterized in that: The cross-section of the air inlet pipe (24) gradually decreases along the length direction; One end of the air inlet pipe (24) with a wide cross section is an air inlet (241), and low-temperature and low-humidity air is introduced into the air inlet (241); One end of the air inlet pipe (24) with a narrow cross section is in a closed shape; At least two air outlets (25) are arranged on the air inlet pipe (24) along the length direction of the air inlet pipe (24); A guide plate assembly (5), wherein the guide plate assembly (5) is arranged below the air inlet pipe (24); The guide plate assembly (5) is an inwardly concave arc-shaped guide plate, which is arranged directly below the air outlet (25), one side of the arc-shaped guide plate is fixedly connected to the inner side wall of the air-drying and fermenting chamber, and the other side of the arc-shaped guide plate is fixedly connected to the bottom of the air-drying and fermenting chamber.

2. The air supply assembly for air-drying cured meat according to claim 1, characterized in that: There are two air inlet pipes (24), and the two air inlet pipes (24) are arranged side by side on both sides of the top of the air drying and fermentation chamber; There are two guide plate assemblies (5), and the two guide plate assemblies (5) are arranged side by side on both sides of the bottom end of the air-drying fermentation chamber.

3. The air supply assembly for air-drying cured meat according to claim 2, characterized in that: The outer side surface of the air inlet pipe (24) is parallel to the inner side wall of the air drying and fermentation chamber; The inner side surface of the air inlet pipe (24) is inclined; The cross section of the air inlet pipe (24) is gradually reduced along the length direction.

4. The air supply assembly for air-drying cured meat according to claim 3, characterized in that: The air outlet (25) is close to the outer side surface of the air inlet pipe (24); The lines along at least two of the air outlets (25) are parallel to the edge ridges of the outer side surfaces of the air inlet pipe (24).

5. The air supply assembly for air-drying cured meat according to claim 4, characterized in that: The spacing between adjacent air outlets (25) is equal.

6. The air supply assembly for air-drying cured meat according to claim 5, characterized in that: The air outlet (25) of the air inlet pipe (24) faces vertically downward, the cross-sectional shape of the air outlet (25) is a rectangle or a circle, and the cross-sectional shape of the air outlet (25) gradually decreases from top to bottom.

7. The air supply assembly for air-drying cured meat according to claim 6, characterized in that: The air inlets (241) of the two air inlet pipes (24) are connected to the connecting pipe (22); the middle of the connecting pipe (22) is connected to a follower pipe (26); and the air outlet of the fan (21) is connected to the follower pipe (26); An electric air valve (23) is installed between the air inlet (241) of the air inlet pipe (24) and the connecting pipe (22), and the electric air valve (23) is used to control the connection state between the air inlet pipe (24) and the connecting pipe (22).

8. The air supply assembly for air-drying cured meat according to claim 1, characterized in that: The guide plate assembly (5) comprises a first guide plate (51), a second guide plate (52) and a third guide plate (53); the first guide plate (51) is rotatably connected to the second guide plate (52), and the second guide plate (52) is rotatably connected to the third guide plate (53); Vertical slide rails (54) are provided at both ends of the first guide plate (51), a vertical first slide groove (541) and a vertical second slide groove (542) are provided on the vertical slide rail (54), a first slider (55) is slidably connected in the vertical first slide groove (541), a first connecting shaft (551) is rotatably connected to the first slider (55), the first connecting shaft (551) is fixedly connected to the end of the upper end of the first guide plate (51), a first threaded column (552) is fixedly connected to the first slider (55), and the first threaded column (552) passes through the vertical second slide groove (542) and is threadedly connected to a first adjusting nut (553); Both ends of the third guide plate (53) are provided with transverse slide rails (56), one end of the transverse slide rail (56) is fixedly connected to the lower end of the vertical slide rail (54), a transverse first slide groove (561) and a transverse second slide groove (562) are provided on the transverse slide rail (56), a second slider (57) is slidably connected in the first transverse slide groove (561), a second connecting shaft (571) is rotatably connected to the second slider (57), the second connecting shaft (571) is fixedly connected to the end of the lower end of the third guide plate (53), a second threaded column (572) is fixedly connected to the second slider (57), and the second threaded column (572) passes through the second transverse slide groove (562) and is threadedly connected to a second adjusting nut (573); The upper and lower ends of both ends of the second guide plate (52) are rotatably connected to a rotating head (521), a third threaded column (58) is slidably connected to the rotating head (521), a third adjusting nut (581) is threadedly connected to the third threaded column (58) at the upper end of the rotating head (521), a spring (582) is sleeved on the third threaded column (58) at the lower end of the rotating head (521), the lower ends of the two third threaded columns (58) at the same end of the second guide plate (52) are rotatably connected to the same connecting pin (583), and the connecting pin (583) is fixedly connected to the inner side surface of the connection between the vertical slide rail (54) and the horizontal slide rail (56).

9. Equipment for making air-dried cured meat, characterized in that: The equipment includes an air supply component for air-drying cured meat as described in any one of claims 1-8.

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