Air volume adjusting device, air supply equipment and drying system

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to an air volume adjusting device, air supply equipment and a drying system. The air volume adjusting device comprises a shell and an air volume adjusting mechanism. An aisle penetrating in the Z direction is arranged in the shell, and a partition plate is arranged in the aisle to divide the aisle into an air return aisle and a fresh air aisle. The air volume adjusting mechanism is connected to the shell and used for opening and closing the air return passage and the fresh air passage, and the opening degree of the air return passage and the opening degree of the fresh air passage are in negative correlation. According to the air volume adjusting device, the opening degree of air entering the air return passage and the opening degree of the fresh air passage are controlled through the air volume adjusting mechanism, then the air volume entering the air return passage and the air volume entering the fresh air passage are adjusted, the air volumes entering the air return passage and the fresh air passage are negatively correlated, the air volume is adjusted, and the air volume stability is guaranteed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of drying equipment, and particularly relates to an air volume adjusting device, an air supply device and a drying system. BACKGROUND

[0002] The drying equipment is a commonly used equipment for drying seaweed and other agricultural products, and hot air drying is still the most widely used drying method. The gas temperature is usually 110-130 DEG C, the tail gas is directly discharged into the atmosphere, the temperature is high, the energy utilization rate is low, and the waste phenomenon is serious.

[0003] In order to avoid waste, the tail gas is generally introduced back to the dryer through the air duct for recycling, which is an effective way for energy-saving drying.

[0004] However, it is difficult to adjust the proportion of recycled tail gas and fresh gas when the tail gas is introduced back to the dryer. CONTENT OF THE UTILITY MODEL

[0005] The application provides an air volume adjusting device, an air supply device and a drying system to solve the technical problem that the proportion of recycled tail gas and fresh gas is difficult to adjust.

[0006] According to one aspect of the application, an air volume adjusting device is provided, comprising a shell and an air volume adjusting mechanism. The shell is provided with a passageway penetrating in the Z direction, and the passageway is provided with a partition plate to separate the passageway into a return air passageway and a fresh air passageway. The air volume adjusting mechanism is connected to the shell and is used to open and close the return air passageway and the fresh air passageway, and is arranged to have a negative correlation between the opening degree of the return air passageway and the opening degree of the fresh air passageway.

[0007] In the optional scheme of the application, the air volume adjusting mechanism comprises a driving member, a plurality of connecting rods and a plurality of flaps; the plurality of connecting rods are movably connected to one side wall of the shell in the X direction, the plurality of flaps are all connected to the plurality of connecting rods, and at least one flap is provided in each of the return air passageway and the fresh air passageway; the driving member is arranged on the one side wall of the shell in the X direction and is connected to the plurality of connecting rods, and drives the plurality of connecting rods to rotate the flaps to open and close the corresponding passageways.

[0008] In the optional scheme of the application, the plurality of connecting rods comprise a driving rod, a plurality of output rods and a connecting rod; the two ends of the driving rod are hingedly connected to the shell and the connecting rod respectively, and the two ends of each output rod are hingedly connected to the shell and the connecting rod respectively; the driving rod and each output rod are connected with one flap, the driving member is connected to the driving rod and rotates the driving rod, and drives each output rod through the connecting rod, so that the driving rod and the output rod rotate all the flaps.

[0009] In the optional scheme of the application, the plurality of connecting rods cooperate with the shell to form a plurality of parallel four-bar links arranged side by side in the Y direction.

[0010] In an alternative aspect of the present application, the flap in the air return channel is arranged perpendicularly to the flap in the fresh air channel.

[0011] In an alternative aspect of the present application, the fresh air channel comprises a first fresh air channel and a second fresh air channel, the first fresh air channel and the second fresh air channel being respectively located on the Y-direction sides of the air return channel.

[0012] Another aspect of the present application is a supply air device comprising a heat exchanger, a mixing chamber and the air volume adjusting device described above. The air volume adjusting device, the heat exchanger and the mixing chamber are connected in sequence in the Z-direction.

[0013] In an alternative aspect of the present application, the supply air device further comprises a fan and an intermediate pipeline, the fan being connected to the mixing chamber through the intermediate pipeline.

[0014] In an alternative aspect of the present application, the intermediate pipeline is tapered in the direction from the mixing chamber to the fan.

[0015] According to yet another aspect of the present application, there is provided a drying system, characterized in that it comprises the supply air device described above, and the air return channel in the air volume adjusting device is connected to a pipeline for discharging tail gas in a drying process.

[0016] In summary, the air volume adjusting device, the supply air device and the drying system provided by the present application have at least the following beneficial effects:

[0017] The air volume adjusting device controls the opening degree of the air return channel and the opening degree of the fresh air channel through the air volume adjusting mechanism, thereby adjusting the air volume of the air return channel and the air volume of the fresh air channel, and adjusting the air volume and ensuring the stability of the air volume.

[0018] In particular, the air volume adjusting mechanism can achieve a negative correlation between the opening degree of the air return channel and the opening degree of the fresh air channel. The negative correlation means that, in the case of an increase in the opening degree of the air return channel, the opening degree of the fresh air channel decreases. Correspondingly, in the case of a decrease in the opening degree of the air return channel, the opening degree of the fresh air channel increases.

[0019] Even if the air volume of the air return channel and the air volume of the fresh air channel are negatively correlated, the ratio of the tail gas air volume and the fresh air volume can be controlled. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating any inventive labor.

[0021] Figure 1A schematic view of the air supply device according to one of the embodiments of the present application;

[0022] Figure 2 A schematic view of the air supply device according to one of the embodiments of the present application; Figure 1 A schematic view of the air supply device according to one of the embodiments of the present application;

[0023] Figure 3 A schematic view of the air supply device according to one of the embodiments of the present application; Figure 1 A schematic view of the air supply device according to one of the embodiments of the present application;

[0024] Figure 4 A schematic view of the air supply device according to one of the embodiments of the present application; Figure 3 A schematic view of the air supply device according to one of the embodiments of the present application;

[0025] The reference signs are as follows:

[0026] 100, air volume adjusting device;

[0027] 10, shell; 11, partition; D1, return air passage; D2, fresh air passage;

[0028] 20, air volume adjusting mechanism; 21, driving member; 22, multi-link; 221, driving rod; 222, output rod; 223, connecting rod; 224, rotating shaft; 23, flap; 24, coupling; 25, support;

[0029] 300, heat exchanger; 400, air mixing chamber; 500, fan; 600, intermediate pipeline. DETAILED DESCRIPTION

[0030] In the present application, unless otherwise explicitly specified and limited, the terms such as "mounting", "connecting", "connecting", "fixing" and the like should be interpreted in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In the description of this specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0032] The terms "X-direction," "Y-direction," and "Z-direction" used in this application are based on a Cartesian coordinate system constructed by the air supply equipment provided in this application. "X-direction" and "Y-direction" define the horizontal plane, while "Z-direction" is the vertical direction, i.e., the direction perpendicular to the horizontal plane. Additionally, "fresh air" as mentioned below can refer to ambient air.

[0033] Figure 1 This is a schematic diagram of an air supply device provided according to one embodiment of this application. Figure 2 for Figure 1 A schematic diagram of the air supply equipment from another perspective. Please refer to [link / reference]. Figure 1 and Figure 2 The air supply equipment includes an air volume regulating device 100, a heat exchanger 300, and a mixing chamber 400. The air volume regulating device 100, the heat exchanger 300, and the mixing chamber 400 are connected sequentially in the Z direction.

[0034] In this embodiment, the air volume regulating device 100 is located above the heat exchanger 300, and the heat exchanger 300 is located above the mixing chamber 400. That is, the air volume regulating device 100 and the mixing chamber 400 are respectively installed at the upper and lower ends of the heat exchanger 300.

[0035] In practical applications, the gas enters through the airflow regulating device 100 and first passes through the heat exchanger 300 to adjust its temperature so that it reaches the required temperature. Then, it enters the mixing chamber 400 for thorough mixing; the mixing chamber 400 is a gas container. It should be noted that the gas entering the airflow regulating device 100 can include ambient air and exhaust gas generated during the drying process, meaning the exhaust gas is recycled and reused. The exhaust gas has a relatively high temperature and humidity.

[0036] Understandably, by controlling the proportion of exhaust gas, the humidity in the hot air entering the drying process can be adjusted, and the energy required by the heat exchanger 300 can be controlled. In particular, it can meet the humidity control requirements in the drying process of foods such as kelp.

[0037] In an embodiment, the heat exchanger 300 can adopt, for example, a shell-and-tube heat exchanger, a finned heat exchanger, etc., but is not limited thereto, and can be selected according to requirements.

[0038] Figure 3 For Figure 1 A schematic view of the air volume adjusting device 100. Figure 4 For Figure 3 A schematic view of the air volume adjusting device 100 from another perspective. Please refer to Figure 3 And Figure 4 The air volume adjusting device 100 includes a housing 10 and an air volume adjusting mechanism 20.

[0039] The housing 10 is provided with a passageway penetrating in the Z direction, and the passageway is provided with a partition plate 11 to separate the passageway into a return air passageway D1 and a fresh air passageway D2.

[0040] The air volume adjusting mechanism 20 is connected to the housing 10 and is used to open and close the return air passageway D1 and the fresh air passageway D2, and is arranged to negatively correlate the opening degree of the return air passageway D1 with the opening degree of the fresh air passageway D2.

[0041] In the embodiment, the passageway in the housing 10 is separated by the partition plate 11, and forms the return air passageway D1 and the fresh air passageway D2, the return air passageway D1 is used to introduce tail gas, and the fresh air passageway D2 is used to introduce external environment air.

[0042] In Figure 3 And Figure 4 In the embodiment shown, the number of partition plates 11 is two, and the passageway in the housing 10 is separated into three parts, one of which is the return air passageway D1, and the other two are the fresh air passageway D2.

[0043] Specifically, the fresh air passageway D2 includes a first fresh air passageway and a second fresh air passageway, and the first fresh air passageway and the second fresh air passageway are respectively located on both sides of the return air passageway D1 in the Y direction. That is, the first fresh air passageway, the return air passageway D1, and the second fresh air passageway are sequentially arranged in the Y direction. It can be understood that the number and position of the partition plate 11 can be appropriately adjusted to adjust the number and position of the separated passageways.

[0044] Further, the air volume adjusting device 100 controls the air volume entering the return air passageway D1 and the fresh air passageway D2 through the air volume adjusting mechanism 20, that is, controls the ratio of the tail gas air volume and the fresh air volume.

[0045] The air volume adjusting mechanism 20 mainly controls the air volume entering the corresponding passageway by controlling the opening degree of the return air passageway D1 and the fresh air passageway D2. In particular, the air volume adjusting mechanism 20 can negatively correlate the opening degree of the return air passageway D1 with the opening degree of the fresh air passageway D2.

[0046] The negative correlation here means that the opening of the fresh air passage D2 decreases as the opening of the return air passage D1 increases. Correspondingly, the opening of the fresh air passage D2 increases as the opening of the return air passage D1 decreases.

[0047] In one embodiment, the fresh air passage D2 is closed when the opening of the return air passage D1 is the largest. The opening of the fresh air passage D2 is the largest when the return air passage D1 is closed.

[0048] In this way, the openings of the return air passage D1 and the fresh air passage D2 are controlled by the air volume adjusting mechanism 20 in a negative correlation, so that the fresh air volume decreases as the return air (exhaust air) volume increases, and the fresh air volume increases as the return air volume decreases, thereby achieving the adjustment of the ratio of the exhaust air volume and the fresh air volume.

[0049] In the illustrated embodiment, the shell 10 is in the shape of a box, and the top side and the bottom side are open, i.e., a passage is formed in the Z direction. Of course, the shape of the shell 10 is not limited to the illustrated embodiment.

[0050] In some alternative embodiments, the air supply device further comprises a fan 500 and an intermediate pipe 600, and the fan 500 is connected to the air mixing chamber 400 through the intermediate pipe 600.

[0051] In the present embodiment, the fan 500 provides power for the flow of gas and is connected to the air mixing chamber 400 through the intermediate pipe 600, thereby leading the gas in the air mixing chamber 400 out. Understandably, the fan 500 can generate a negative pressure in the air mixing chamber 400, thereby forming a gas flow that enters the air volume adjusting device 100 and then flows through the heat exchanger 300, the air mixing chamber 400, and the fan 500 in sequence.

[0052] In one embodiment, the fan 500 is a centrifugal fan, but it is of course not limited thereto, and for example, an axial fan, a mixed-flow fan, etc. can also be used.

[0053] In a further alternative embodiment, the intermediate pipe 600 is tapered in the direction of the air mixing chamber 400 towards the fan 500.

[0054] In the present embodiment, the intermediate pipe 600 is a variable-diameter pipe. Understandably, the direction of the air mixing chamber 400 towards the fan 500 is the direction of the gas flow, i.e., the diameter of the intermediate pipe 600 is tapered in the direction of the gas flow, which is beneficial to forming a more concentrated gas flow.

[0055] In one alternative embodiment, the air volume adjusting mechanism 20 comprises a driving member 21, a plurality of connecting rods 22, and a plurality of flaps 23.

[0056] The plurality of link rods 22 are movably connected to one side wall of the shell 10 in the X direction, and the plurality of flaps 23 are connected to the plurality of link rods 22, and at least one flap 23 is provided in each of the return air passage D1 and the fresh air passage D2.

[0057] The driving member 21 is arranged on one side wall of the shell 10 in the X direction and is connected to the plurality of link rods 22, and drives the plurality of link rods 22 to drive the plurality of flaps 23 to rotate to open and close the corresponding passage.

[0058] In this embodiment, the air volume adjusting mechanism 20 is arranged on one side of the shell 10 in the X direction, the driving member 21 serves as a power source of the air volume adjusting mechanism 20, the plurality of link rods 22 serve as a transmission mechanism of the air volume adjusting mechanism 20, and the flaps 23 are arranged in the passages, and the angles of the flaps 23 in the passages determine the opening degrees of the passages.

[0059] The flaps 23 are connected to the plurality of link rods 22, the plurality of link rods 22 are rotatably connected to the outer peripheral wall of the shell 10 and have a rotational degree of freedom. The driving member 21 can drive the plurality of link rods 22 to rotate, and in turn drive the plurality of flaps 23 to rotate, so as to adjust the angles of the plurality of flaps 23 in the passages, control the opening degrees of the passages, and in turn change the air volumes of the corresponding passages.

[0060] It can be seen that in this embodiment, the driving member 21 drives the plurality of flaps 23 to rotate through the plurality of link rods 22, that is, a one-to-many scheme, which can reduce the number of driving members 21.

[0061] In another embodiment, the plurality of link rods 22 can be cancelled, and each flap 23 corresponds to one driving member 21, that is, a one-to-one scheme. In specific applications, the driving member 21 is a motor, but is not limited thereto.

[0062] In an alternative embodiment, the flaps 23 in the return air passage D1 are arranged perpendicularly to the flaps 23 in the fresh air passage D2.

[0063] In one embodiment, the flaps 23 in the return air passage D1 are in a horizontal state, and correspondingly, the flaps 23 in the fresh air passage D2 are in a vertical state, so that the return air passage D1 is closed and the opening degree of the fresh air passage D2 is maximum. In this state, only air in the external environment is introduced.

[0064] Since each flap 23 is driven to rotate by the same driving member 21 through the plurality of link rods 22, each flap 23 rotates synchronously. Understandably, in this embodiment, as the flaps 23 rotate, the flaps 23 in the return air passage D1 have a trend of switching from a horizontal state to a vertical state, that is, the opening degree of the return air passage D1 gradually increases, and at the same time, the flaps 23 in the fresh air passage D2 have a trend of switching from a vertical state to a horizontal state, that is, the opening degree of the fresh air passage D2 gradually decreases.

[0065] It can be seen that the flap 23 in the return air passage D1 is arranged vertically to the flap 23 in the fresh air passage D2, so as to realize the negative correlation between the opening degree of the return air passage D1 and the opening degree of the fresh air passage D2.

[0066] In the illustrated embodiment, the number of flaps 23 in the return air passage D1 is 3, and the number of flaps 23 in each fresh air passage D2 is 2. It can be understood that the number of flaps 23 can be matched according to the size of the flaps 23 and the size of the corresponding passage, and is not limited to the illustrated embodiment.

[0067] In a further optional embodiment, the multi-link 22 includes a driving rod 221, a plurality of output rods 222, and a connecting rod 223. The two ends of the driving rod 221 are respectively hinged to the housing 10 and the connecting rod 223, and the two ends of each output rod 222 are respectively hinged to the housing 10 and the connecting rod 223.

[0068] The driving rod 221 and each output rod 222 are connected with a flap 23, the driving member 21 is connected to the driving rod 221 and rotates the driving rod 221, and drives each output rod 222 through the connecting rod 223, so that the driving rod 221 and the output rod 222 drive all the flaps 23 to rotate.

[0069] In the embodiment, the driving rod 221 in the multi-link 22 is connected with the driving member 21, and rotates under the driving of the driving member 21, that is, the driving rod 221 serves as a driving rotating rod.

[0070] The two ends of the driving rod 221 and the two ends of the output rod 222 are respectively hinged to the housing 10 and the connecting rod 223, so that the output rod 222 and the connecting rod 223 can also rotate under the driving of the driving rod 221, and the output rod 222 and the connecting rod 223 serve as driven rods.

[0071] The driving rod 221 is connected with a flap 23, and each output rod 222 is connected with a flap 23, so as to drive all the flaps 23 to rotate, thereby realizing the opening and closing of the corresponding passage.

[0072] In addition, in the embodiment, each flap 23 shares one driving member 21 through the multi-link 22, that is, each flap 23 rotates synchronously.

[0073] In an embodiment, the two ends of the driving rod 221 are respectively rotatably connected to the connecting rod 223 and the housing 10 through the rotating shaft 224, the two ends of the output rod 222 are also respectively rotatably connected to the connecting rod 223 and the housing 10 through the rotating shaft 224, and the rotating shaft 224 connected with the housing 10 rotates with the corresponding rotating shaft.

[0074] In one embodiment, the X-direction side of the shell 10 is provided with a support 25, and the driving member 21 is arranged at the support 25. In a specific application, the driving member 21 is an electric motor, and the driving member 21 is connected to the support 25 through a coupling 24

[0075] In one embodiment, the plurality of connecting rods 22 cooperates with the shell 10 to form a plurality of parallel four-bar linkages arranged side by side in the Y-direction. In this embodiment, the shell 10 serves as the frame of the parallel four-bar linkage, the driving rod 221 and the output rod 222 serve as the connecting rods of the parallel four-bar linkage, and the connecting rod 223 serves as the link of the parallel four-bar linkage.

[0076] It can be understood that the parallel four-bar linkages in this embodiment share the same connecting rod and frame, and the parallel four-bar linkage is used to make the rotation angles of the driving rod 221 and the output rod 222 the same, so that the flap 23 in the return air passage D1 and the flap 23 in the fresh air passage D2 are arranged vertically, and the negative correlation between the two can be ensured.

[0077] In the illustrated embodiment, the number of output rods 222 is six, plus one driving rod 221, a total of seven, and these rod members are arranged in parallel and spaced apart in the Y-direction, and the driving rod 221 is the rod member in the middle position.

[0078] Another aspect of the present application also provides a drying system, which comprises the above-mentioned air supply device, wherein the return air passage D1 in the air volume adjusting device 100 is connected to a pipeline for discharging tail gas in a drying process.

[0079] It should be noted that the drying system comprises a drying device, and the air supply device can provide hot air for the drying device, and the tail gas herein refers to the gas discharged from the drying device, which enters the air supply device through the return air passage D1, and is introduced into the drying device after being heated and mixed. That is, the tail gas is reused to achieve the purpose of energy saving and humidity control. Of course, the drying device also has all the advantages of the above-mentioned air supply device, which will not be repeated here.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. An air volume regulating device, characterized by, The application relates to a shell (10) internally provided with a passageway penetrating in the Z direction, the passageway is internally provided with a partition plate (11) to separate the passageway into a return air passageway (D1) and a fresh air passageway (D2); and a wind volume adjusting mechanism (20) connected to the shell (10) and used for opening and closing the return air passageway (D1) and the fresh air passageway (D2), and the opening degree of the return air passageway (D1) is negatively correlated with the opening degree of the fresh air passageway (D2). The wind volume adjusting mechanism (20) comprises a driving member (21), a plurality of connecting rods (22) and a plurality of turning plates (23). The plurality of connecting rods (22) are movably connected to one side wall of the shell (10) in the X direction, and the plurality of turning plates (23) are connected to the plurality of connecting rods (22), and at least one turning plate (23) is arranged in the return air passageway (D1) and the fresh air passageway (D2).

2. The air volume regulating device according to claim 1, wherein The driving member (21) is arranged on one side wall of the shell (10) in the X direction and connected to the plurality of connecting rods (22), and drives the plurality of connecting rods (22) to drive the turning plates (23) to rotate, so as to open and close the passageways. The plurality of connecting rods (22) comprise a driving rod (221), a plurality of output rods (222) and a connecting rod (223). The two ends of the driving rod (221) are hingedly connected to the shell (10) and the connecting rod (223), and the two ends of each output rod (222) are hingedly connected to the shell (10) and the connecting rod (223).

3. The air volume regulating device of claim 2, wherein, The driving member (21) is connected to the driving rod (221) and drives the driving rod (221) to rotate, and drives each output rod (222) through the connecting rod (223), so that the driving rod (221) and the output rod (222) drive all the turning plates (23) to rotate. The plurality of connecting rods (22) and the shell (10) form a plurality of parallel four-bar linkages arranged side by side in the Y direction. The turning plates (23) in the return air passageway (D1) are arranged vertically to the turning plates (23) in the fresh air passageway (D2).

4. The air volume regulating device according to claim 2, wherein The fresh air passageway (D2) comprises a first fresh air passageway and a second fresh air passageway, and the first fresh air passageway and the second fresh air passageway are respectively arranged on the two sides of the return air passageway (D1) in the Y direction.

5. The air volume regulating device according to any one of claims 2 to 4, characterized in that, The application further relates to a heat exchanger (300), a mixed air chamber (400) and the wind volume adjusting device (100) according to any one of claims 1 to 6.

6. The airflow adjusting device of claim 1, wherein The wind volume adjusting device (100), the heat exchanger (300) and the mixed air chamber (400) are sequentially connected in the Z direction.

7. An air supply device characterized by comprising: The application further relates to a fan (500) and an intermediate pipeline (600), and the fan (500) is connected to the mixed air chamber (400) through the intermediate pipeline (600). The intermediate pipeline (600) is tapered in the direction from the mixed air chamber (400) to the fan (500).

8. The air supply device according to claim 7, wherein ​ 9. The air supply device according to claim 8, wherein ​ 10. A drying system, characterized by The air supply device according to any one of claims 7 to 9, wherein the return passage (D1) in the air volume adjusting device (100) is connected to a duct for discharging exhaust air during a drying process.

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