Smoking equipment
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-31
- Publication Date
- 2026-08-11
AI Technical Summary
不仅会加剧颗粒炉使用过程中对环境污染的程度，还会造成燃料的浪费
Smart Images
Figure CN224611683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of smoking equipment technology, and in particular to a smoking equipment. Background Technology
[0002] Pellet ovens are devices that smoke food by burning pellets to produce smoke. However, if the user opens the lid to check the food's doneness during grilling, the smoke quickly dissipates into the air and escapes. Once the pellets are ignited, it's difficult for dense smoke to form again. Therefore, if you want to continue grilling, you need to add more pellets to regenerate smoke within the oven cavity. This not only exacerbates the environmental pollution caused by pellet ovens but also wastes fuel. Utility Model Content
[0003] One of the technical problems solved by this utility model is to provide a fumigation device that can reduce the emission of particulate matter in the smoke, reduce the impact on environmental pollution, save fuel, and collect and reuse smoke as needed by the user.
[0004] The first technical problem mentioned above is solved by the following technical solution:
[0005] Smoking equipment, including:
[0006] The oven body has a smoking chamber, and a smoke collection port and a smoke return port that are both connected to the smoking chamber. A grill is provided inside the smoking chamber. The smoke collection port is located above the grill and the smoke return port is located below the grill.
[0007] A smoke collection device, comprising a smoke collection housing, a smoke collection on / off control structure, and a smoke return on / off control structure, wherein the smoke collection housing has a smoke collection cavity, the smoke collection on / off control structure is capable of controlling the smoke chamber to selectively connect and disconnect from the smoke collection cavity through the smoke collection port, and the smoke return on / off control structure is capable of controlling the smoke collection cavity to selectively connect and disconnect from the smoke collection cavity through the smoke return port;
[0008] A circulating fan unit is provided inside the smoke collection chamber. The circulating fan unit is used to send the smoke in the smoke collection chamber into the smoke chamber through the smoke return port and form a smoke circulation through the smoke collection port.
[0009] The smoking equipment described in this utility model has the following advantages compared with the prior art:
[0010] The smoking equipment provided by this utility model connects the smoking chamber to the smoke collection chamber through a smoke collection port via a smoke collection on / off control structure. A circulating fan unit operates to allow the smoke to flow upwards through the grill, smoking the food on the grill. The smoke above the grill enters the smoke collection chamber through the smoke collection port, enabling smoke collection. A return smoke on / off control structure connects the smoke collection chamber to the smoking chamber through a return smoke port. The circulating fan unit operates to send the smoke collected in the smoke collection chamber back to the area below the grill inside the oven. This smoke then flows upwards through the grill, smoking the food on the grill again. This allows for the reuse of the smoke collected in the smoke collection chamber, not only meeting the oven's smoke requirements without adding particles, reducing costs, but also reducing particulate matter in the smoke emitted into the atmosphere, thus minimizing the environmental impact of smoke emissions. Furthermore, the smoke circulates within the smoke collection chamber and the smoking chamber during the smoking process, improving the smoking effect.
[0011] In one embodiment, the smoke collection shell is located on one side of the furnace body, and the smoke collection shell has an open end. The open end of the smoke collection shell is set towards the outer wall of the furnace body and surrounds the outer wall of the furnace body to form the smoke collection cavity.
[0012] In one embodiment, the top of the smoke collection housing is provided with an inspection port, and an inspection cover is installed at the inspection port, the inspection cover being able to selectively open and close the inspection port.
[0013] In one embodiment, one end of the flue gas collection port extends to the outer wall of the furnace body that seals the opening of the flue gas collection shell.
[0014] In one embodiment, the furnace body is provided with a smoke exhaust hole communicating with the smoking chamber, and the smoking equipment further includes a smoke exhaust valve for controlling the smoke exhaust hole to selectively communicate with or disconnect from the outside atmosphere.
[0015] In one embodiment, the smoke collection on / off control structure includes:
[0016] A sealing cover is movably connected to the smoke collection housing and located inside the smoke collection chamber. The sealing cover has a connecting position for opening the smoke collection port and a disconnecting position for blocking the smoke collection port.
[0017] In one embodiment, the smoke collection on / off control structure further includes a drive unit installed in the smoke collection housing. The output end of the drive unit is connected to the sealing cover. The drive unit is used to drive the sealing cover to move back and forth between the connected position and the disconnected position.
[0018] In one embodiment, the smoke return on / off control structure includes:
[0019] A smoke return pipe, one end of which is connected to the smoke collection chamber, and the other end of which passes through the smoke return port and is connected to the smoke chamber;
[0020] A smoke return valve is provided on the smoke return pipe and is used to control the opening and closing of the smoke return pipe.
[0021] In one embodiment, the smoking chamber is provided with a smoke outlet pipe located below the grill, the smoke outlet pipe is connected to the smoke return pipe, and the upper and / or lower sides of the smoke outlet pipe are provided with multiple smoke outlet holes.
[0022] In one embodiment, the fumigation device further includes a smoke sensor installed in the smoke collection housing, the detection end of the smoke sensor being located inside the smoke collection chamber, and the smoke sensor being used to detect whether the smoke concentration inside the smoke collection chamber reaches a preset smoke concentration;
[0023] And / or, the smoke collection housing is provided with an installation window, and the installation window is equipped with a transparent observation window for observing whether the smoke collection chamber is filled with smoke. Attached Figure Description
[0024] Figure 1 This is a first sectional view of the smoking equipment provided in this embodiment of the utility model;
[0025] Figure 2 This is a second sectional view of the smoking equipment provided in this embodiment of the present invention;
[0026] Figure 3 yes Figure 1 A magnified view of a portion of point A in the middle;
[0027] Figure 4 yes Figure 2 A magnified view of a portion of point B in the middle;
[0028] Figure 5 This is a first partial sectional view of the smoking equipment provided in this embodiment of the utility model;
[0029] Figure 6 This is a top view of the smoking equipment provided in this embodiment of the utility model;
[0030] Figure 7 This is a schematic diagram showing the state of the return smoke valve cutting off the return smoke pipe provided in this embodiment of the utility model;
[0031] Figure 8 This is a schematic diagram showing the state of the return smoke valve conducting the return smoke pipe according to an embodiment of this utility model;
[0032] Figure 9 yes Figure 2 A magnified view of a portion of point C in the middle;
[0033] Figure 10 This is a rear view of the smoking equipment provided in an embodiment of this utility model.
[0034] In the picture:
[0035] 1. Smoke collection housing; 10. Smoke collection chamber; 11. Observation window; 12. Mounting part; 13. Inspection port; 14. Inspection cover;
[0036] 2. Smoke collection on / off control structure; 21. Sealing cover; 22. Drive unit; 221. Motor; 222. Screw; 223. Slider;
[0037] 3. Smoke return on / off control structure; 31. Smoke return valve; 32. Smoke return pipe;
[0038] 4. Smoke sensor;
[0039] 5. Smoke outlet pipe; 51. Smoke outlet hole;
[0040] 6. Furnace body; 61. Furnace shell; 62. Furnace cover; 63. Smoke chamber; 64. Smoke collection port; 65. Smoke return port;
[0041] 7. Decorative cover;
[0042] 8. Circulating fan unit;
[0043] 100. Install the cavity. Detailed Implementation
[0044] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0045] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0046] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0048] like Figures 1 to 4 As shown, an embodiment of this utility model provides a smoking device, which can be a pellet oven, a smoking oven, or other equipment that can be used for smoking, and will not be listed here.
[0049] The smoking equipment includes a furnace body 6, which has a smoking chamber 63, and a smoke collection port 64 and a smoke return port 65, both of which are connected to the smoking chamber 63. The smoke collection port 64 is used to discharge residual smoke from the smoking chamber 63 to the outside atmosphere after smoking is complete. Specifically, the furnace body 6 includes a shell 61 with a food loading / unloading opening, and a lid 62 movably connected to the furnace body 6 to open and close the food loading / unloading opening. The lid 62 is rotatably connected to the shell 61, and the lid 62 can also be slidably connected to the shell 61. For example, the lid 62 is rotatably connected to the shell 61.
[0050] The smoking equipment also includes a smoke collection device and a grill installed in the smoking chamber 63. The smoke collection port 64 is located above the grill, and the smoke return port 65 is located below the grill. The smoke collection device includes a smoke collection housing 1, a smoke collection on / off control structure 2, a smoke return on / off control structure 3, and a circulating fan unit 8. The smoke collection housing 1 has a smoke collection chamber 10. The smoke collection on / off control structure 2 can control the smoking chamber 63 to selectively connect and disconnect with the smoke collection chamber 10 through the smoke collection port 64, and the smoke return on / off control structure 3 can control the smoke collection chamber 10 to selectively connect and disconnect with the smoking chamber 63 through the smoke return port 65. The circulating fan unit 8 is installed in the smoke collection chamber 10 and is used to send the smoke in the smoke collection chamber 10 into the smoking chamber 63 through the smoke return port 65 and form a smoke circulation through the smoke collection port 64.
[0051] For example, both the flue gas return port 65 and the flue gas collection port 64 are located on the furnace shell 61, and the circulating fan unit 8 is an exhaust fan.
[0052] When the oven lid 62 needs to be opened to check the doneness of the food after smoking or during smoking, in order to avoid wasting the smoke in the smoking chamber 63, the smoke collection on / off control structure 2 can be used to control the smoke collection chamber 63 to connect with the smoke collection chamber 10 through the smoke collection port 64, and the smoke return on / off control structure 3 can be used to control the smoke collection chamber 10 to connect with the smoke collection chamber 63 through the smoke return port 65. This creates a circulation loop between the smoke collection chamber 63 and the smoke collection chamber 10, controlling the operation of the circulating fan unit 8. The smoke in the smoke collection chamber 63 will enter the smoke collection chamber 10 through the smoke collection port 64, while the air in the smoke collection chamber 10 will enter the smoke collection chamber 63 through the smoke return port 65. When the smoke collection chamber 10 is full of smoke, the smoke collection on / off control structure 2 and the smoke return on / off control structure 3 can be used to disconnect the smoke collection chamber 63 and the smoke collection chamber 10, and control the circulating fan unit 8 to stop working.
[0053] Before opening the oven lid 62 of the smoking equipment, the circulating fan unit 8 is stopped. The smoking chamber 63 is connected to the smoke collection chamber 10 through the smoke collection port 64 via the smoke collection on / off control structure 2. The smoke flows upward through the grill to smoke the food on the grill. The smoke above the grill enters the smoke collection chamber 10 through the smoke collection port 64, thus temporarily storing the smoke in the smoking chamber 63. After opening the oven lid 62 of the smoking equipment, only a small amount of residual smoke in the smoking chamber 63 escapes into the air, while most of the smoke has been temporarily stored in the smoke collection chamber 10. After the oven lid 62 of the smoking equipment is closed, the circulating fan unit 8 is stopped, and the smoke return control structure 3 is controlled to connect the smoke collection chamber 10 to the smoking chamber 63 through the smoke return port 65. This allows the smoke in the smoke collection chamber 10 to return to the bottom of the grill in the smoking chamber 63 through the smoke return port 65. Then, when this part of the smoke flows upward through the grill, it can smoke the food on the grill again, realizing the reuse of the smoke collected in the smoke collection chamber 10, greatly reducing the amount of particles required for continued baking, reducing costs, and reducing air pollution from smoke emissions.
[0054] During the operation of the smoking equipment, the smoking chamber 63 can be kept in constant contact with the smoking chamber 10 through the smoke collection port 64 by the smoke collection on / off control structure 2, and the smoking chamber 10 can be kept in constant contact with the smoking chamber 63 through the smoke return port 65 by the smoke return on / off control structure 3, and the circulating fan unit 8 can be controlled to work so that the smoke circulates in the smoking chamber 63 and the smoking chamber 10, thereby realizing the circulation of smoke and improving the smoking effect.
[0055] In addition, during the operation of the smoking equipment, if there is too much smoke in the smoking chamber 63, the excess smoke can be temporarily stored in the smoke collection chamber 10; and when there is insufficient smoke in the smoking chamber 63, the circulating fan unit 8 is controlled to work in time, and the smoke return on / off control structure 3 controls the smoking chamber 63 to connect with the smoke collection chamber 10 through the smoke return port 65, so that the smoke in the smoke collection chamber 10 returns to the smoking chamber 63 through the smoke return port 65 to meet the smoke requirements of the furnace body 6, without the need to add particles again.
[0056] The smoking equipment provided in this embodiment of the invention can control the operation of the circulating fan unit 8, and connect the smoking chamber 63 to the smoking chamber 10 through the smoke collection port 64 via the smoke collection on / off control structure 2. The smoke flows upward through the grill to smoke the food on the grill, and the smoke above the grill enters the smoking chamber 10 through the smoke collection port 64 for collection. It can also control the operation of the circulating fan unit 8, and connect the smoking chamber 10 to the smoking chamber 63 through the smoke return port 65 via the smoke return on / off control structure 3. The smoke collected in the smoking chamber 10... The smoke is returned to the area below the grill inside the oven. As this smoke flows upward through the grill, it can be used to smoke the food on the grill again, thus reusing the smoke collected in the smoke collection chamber 10. This not only meets the oven's smoke requirements without the need to add particles, reducing costs, but also reduces particulate matter in the smoke emitted into the atmosphere, minimizing the environmental impact of smoke emissions. Furthermore, during the smoking process, the circulating fan unit 8 can be controlled to circulate the smoke within the smoke collection chamber 10 and the smoking chamber 63, thereby improving the smoking effect.
[0057] In some embodiments, the furnace body 6 is provided with a smoke exhaust port communicating with the smoking chamber 63. The smoking equipment also includes a smoke exhaust valve for selectively connecting or disconnecting the smoke exhaust port from the outside atmosphere. Exemplarily, the smoke exhaust port is located at the upper part of the furnace body 6. A chimney is installed in the smoke exhaust port, and the smoke exhaust valve is installed inside the chimney. The smoke exhaust valve can be opened to discharge the smoke from the smoking chamber 63 to the outside atmosphere through the smoke exhaust port; the smoke exhaust valve can also be closed, at which point the smoke from the smoking chamber 63 can be sent into the smoke collection chamber 10. It should be noted that the smoke exhaust valve can be a manually operated valve or an electromagnetic valve. The smoke exhaust valve is electrically connected to the controller of the smoking equipment, and a control switch for controlling the opening and closing of the smoke exhaust valve is provided on the control panel of the smoking equipment, so that the user can control the opening and closing of the electromagnetic valve via the control switch.
[0058] In some embodiments, the smoke collection housing 1 is located on the outer side of the furnace body 6. For example, as shown... Figure 1 and Figure 2As shown, the smoke collection housing 1 is located on the side of the furnace shell 61 facing away from the furnace cover 62. In other embodiments, the smoke collection housing 1 can also be located on the side of the furnace shell 61 adjacent to the furnace cover 62, such as on the left or right side of the furnace shell 61. It should be noted that the side of the furnace shell 61 with the furnace cover 62 is the front side of the furnace shell 61, and the left and right directions of the furnace shell 61 refer to the left and right hand directions of the user when facing the furnace cover 62.
[0059] In some embodiments, such as Figures 1 to 5 As shown, the smoke collection shell 1 has an opening at one end. The opening end of the smoke collection shell 1 faces the outer wall of the furnace body 6 and surrounds the outer wall of the furnace body 6 to form the aforementioned smoke collection chamber 10. Since the smoke sent into the smoke collection shell 1 is high-temperature smoke, this arrangement allows the high-temperature smoke in the smoke collection chamber 10 to directly contact the outer wall of the furnace body 6, thus utilizing the high-temperature smoke in the smoke collection shell 1 to insulate the furnace body 6. Furthermore, by using the furnace body 6 as a support for the smoke collection shell 1, the smoke collection shell 1 can be directly installed onto the furnace body 6, making the installation of the smoke collection shell 1 relatively convenient.
[0060] For example, the smoke collection housing 1 is welded and fixed to the outer wall of the furnace body 6. In other embodiments, the smoke collection housing 1 can also be fastened to the furnace body 6, and a seal can be provided between the contact surfaces of the smoke collection housing 1 and the furnace body 6 to prevent smoke in the smoke collection housing 1 from leaking through the contact point between the smoke collection housing 1 and the furnace body 6.
[0061] In some embodiments, such as Figures 1 to 3 As shown, one end of the smoke collection port 64 extends to the outer wall of the furnace body 6, sealing the opening of the smoke collection shell 1. With this configuration, no additional piping is required; simply opening the smoke collection port 64 on the smoke collection shell 1 and installing the smoke collection shell 1 onto the furnace body 6 allows the smoke from the smoking chamber 63 to be sent into the smoke collection chamber 10 through the smoke collection port 64. In other embodiments, the smoke collection port 64 can also be located on one side of the smoke collection shell 1, and connected to the smoke collection chamber 10 via a smoke collection pipe.
[0062] In some embodiments, such as Figure 3 and Figure 5 As shown, the smoke collection on / off control structure 2 includes a sealing cover 21, which is movably connected to the smoke collection housing 1 and located inside the smoke collection chamber 10. The sealing cover 21 has a communication position for opening the smoke collection port 64 and a disconnect position for blocking the smoke collection port 64.
[0063] Specifically, the smoke collection port 64 on the furnace body 6 is opened and closed by the sealing cover 21, so that the smoking chamber 63 can be connected or disconnected from the smoke collection chamber 10 through the smoke collection port 64. In other embodiments, an electromagnetic switch valve can also be provided at the smoke collection port 64, and the opening and closing of the electromagnetic switch valve can control the connection and disconnection of the smoking chamber 63 through the smoke collection port 64 and the smoke collection chamber 10.
[0064] In some embodiments, such as Figures 1 to 3 as well as Figure 5 As shown, the smoke collection on / off control structure 2 also includes a drive unit 22 installed in the smoke collection housing 1. The output end of the drive unit 22 is connected to the sealing cover 21. The drive unit 22 is used to drive the sealing cover 21 to move back and forth between the connected position and the disconnected position.
[0065] The sealing cover 21 is moved by the drive unit 22 so that the sealing cover 21 moves back and forth between the connected position and the disconnected position, so that the smoke collection port 64 can be opened and closed by the sealing cover 21.
[0066] In some embodiments, such as Figures 1 to 3 as well as Figure 5 As shown, the drive unit 22 includes a linear drive component, which is installed on the smoke collection housing 1. The output end of the linear drive component is connected to the sealing cover 21. The linear drive component is used to drive the sealing cover 21 to move linearly, so that the sealing cover 21 moves back and forth between the connected position and the disconnected position.
[0067] For example, the linear drive includes a motor 221, a screw 222, and a slider 223. The output shaft of the motor 221 is connected to the screw 222, and the slider 223 is threadedly connected to the screw 222. The smoke collection housing 1 is provided with a mounting part 12, which is slidably connected to the slider 223 along the translational direction of the sealing cover 21 to restrict the slider 223 from rotating relative to the mounting part 12. The mounting part 12 is connected to the sealing cover 21. The motor 221 drives the screw 222 to rotate, and the screw 222 drives the slider 223 to move linearly, so that the sealing cover 21 follows the linear movement of the slider 223.
[0068] In other embodiments, the translation of the sealing cover 21 can also be achieved manually. Specifically, the motor 221 is omitted, and one end of the screw 222 extends out of the smoke collection housing 1 to form an operating handle. By rotating the operating handle, the screw 222 is rotated, causing the slider 223 to move the sealing cover 21 to open and close the smoke collection port 64. Alternatively, the sealing cover 21 can be rotated by the drive unit 22 to open and close the smoke collection port 64.
[0069] In some embodiments, such as Figure 3 and Figure 5 As shown, the above-mentioned smoking equipment also includes a decorative cover 7, which is located outside the smoke collection housing 1 and connected to the smoke collection housing 1, so that the smoke collection housing 1 and the decorative cover 7 form an installation cavity 100. The motor 221 is placed in the installation cavity 100. On the one hand, the motor 221 can be kept in a relatively low temperature environment, which can extend the service life of the motor 221; on the other hand, a motor 221 with relatively low high temperature resistance can be selected to reduce costs.
[0070] In some embodiments, such as Figure 3 and Figure 5 As shown, the decorative cover 7 is detachably installed on the smoke collection housing 1, such as by screw connection. This facilitates the subsequent removal of the decorative cover 7 for maintenance of the motor 221.
[0071] In some embodiments, such as Figure 2 , Figures 4 to 8 As shown, the smoke return on / off control structure 3 includes a smoke return pipe 32 and a smoke return valve 31. One end of the smoke return pipe 32 is connected to the smoke collection chamber 10, and the other end of the smoke return pipe 32 passes through the smoke return port 65 and is connected to the smoking chamber 63. The smoke return valve 31 is located on the smoke return pipe 32 and is used to control the on / off state of the smoke return pipe 32. By controlling the on / off state of the smoke return pipe 32 through the smoke return valve 31, the connection or disconnection between the smoke collection chamber 10 and the smoking chamber 63 through the smoke return pipe 32 can be controlled.
[0072] Specifically, the lower part of the smoke collection shell 1 is provided with a smoke return hole, the smoke return port 65 is located at the lower part of the furnace body 6, one end of the smoke return pipe 32 passes through the smoke return hole and communicates with the smoke collection chamber 10, and the other end passes through the smoke return port 65 and communicates with the smoke chamber 63.
[0073] In other embodiments, one end of the flue gas return hole can be extended to the outer wall of the furnace body 6 to block the opening of the flue gas collection shell 1. In this case, there is no need to set up an additional flue gas return pipe 32. The flue gas return on / off control structure 3 can be an electromagnetic switch valve, or a structure similar to the sealing cover 21 and the drive unit 22 can be used. These will not be described in detail here.
[0074] For example, the smoke return valve 31 is a manual valve, which allows the user to manually control the opening and closing of the smoke return valve 31. Specifically, the smoke return valve 31 includes a smoke return valve body installed on the smoke return pipe 32, and a valve core threadedly connected to the smoke return valve body. One end of the valve core extends out of the smoke return valve body and is connected to a smoke return handle. The other end of the valve core extends radially into the smoke return pipe 32. By turning the smoke return handle, the valve core can be moved axially, thereby cutting off the smoke return pipe 32 or connecting the smoke return pipes 32 on both sides of the valve core.
[0075] In other embodiments, the return smoke valve 31 may also be an electromagnetic switch valve, which electrically connects the return smoke valve 31 to the controller of the smoking equipment, and sets a control switch on the control panel of the smoking equipment to control the opening and closing of the return smoke valve 31, so that the user can operate the return smoke valve 31 to open and close through the control switch.
[0076] In some embodiments, such as Figure 1 , Figure 2 , Figure 4 and Figure 9As shown, the smoking chamber 63 is equipped with a smoke outlet pipe 5 located below the grill. One end of the smoke outlet pipe 5 is connected to the return smoke pipe 32. Multiple smoke outlet holes 51 are provided on both the upper and lower sides of the smoke outlet pipe 5. Specifically, one end of the return smoke pipe 32 is inserted into the smoking chamber 63 and connected to the smoke outlet pipe 5, facilitating the installation of the smoke outlet pipe 5 and the return smoke pipe 32. Alternatively, smoke outlet holes 51 can be provided only on the upper side of the smoke outlet pipe 5, or only on the lower side of the smoke outlet pipe 5.
[0077] After the smoke return valve 31 is opened, the smoke in the smoke collection chamber 10 is drawn into the smoke outlet pipe 5 and enters the smoking chamber 63 through multiple smoke outlet holes 51 on the smoke outlet pipe 5, flowing upwards so that this part of the smoke can be used to smoke the food on the upper grill, which helps to evenly distribute the smoke into the smoking chamber 63. By providing multiple smoke outlet holes 51 on both the upper and lower sides of the smoke outlet pipe 5, the smoke outlet area is increased, allowing the smoke in the smoke outlet pipe 5 to quickly enter the smoking chamber 63.
[0078] For example, the smoke outlet pipe 5 is provided with multiple sets of smoke outlet holes 51, which are arranged at intervals along the axial direction of the smoke outlet pipe 5. The multiple smoke outlet holes 51 in each set are arranged at intervals along the circumference of the smoke outlet pipe 5. The smoke outlet pipe 5 extends horizontally. This arrangement is beneficial to increasing the smoke outlet area, so that the smoke in the smoke outlet pipe 5 can quickly enter the smoke chamber 63.
[0079] In some embodiments, such as Figure 1 , Figure 2 and Figure 4 As shown, the smoking equipment also includes an air supply unit for supplying air required for fuel combustion into the inner cavity of the furnace body 6, and the smoke outlet pipe 5 is located above the air outlet of the air supply unit. Exemplarily, the air supply unit is a blower.
[0080] When the air supply unit is working, the airflow flows upward. When the return smoke valve 31 is open, the smoke near the return smoke inlet 65 is carried upward by the upward airflow generated by the air supply unit, thereby drawing the smoke in the smoke collection chamber 10 into the smoking chamber 63 through the return smoke inlet 65 and allowing it to flow upward to smoke the food on the upper grill. By using the circulating fan unit 8 and the fan unit in conjunction, the smoke in the smoke collection chamber 10 can be returned to the smoking chamber 63 more efficiently. Moreover, when the air supply unit is not working, only the circulating fan unit 8 can be controlled to work, allowing the smoke in the smoke collection chamber 10 to enter the smoking chamber 63, or allowing the smoke in the smoking chamber 63 to enter the smoke collection chamber 10.
[0081] Specifically, taking a pellet furnace as an example, the air supply unit includes an air supply shell and a fan. The air supply shell is located inside the smoke chamber 63. The smoke equipment also includes a fire pot. The lower end of the fire pot extends into the air supply shell, and the upper end of the fire pot is open. The fire pot is used to hold biomass energy pellet fuel such as apple tree wood pellets. The bottom of the fire pot has an opening to form a ventilation hole. The inner cavity of the air supply shell is connected to the inner cavity of the fire pot through the ventilation hole. The return smoke port 65 is located above the fire pot.
[0082] After the fan is turned on, it blows air into the air supply housing. The air in the air supply housing enters the fire pot through the ventilation hole, and then flows out from the upper opening of the fire pot and flows upward. The upward airflow drives the smoke near the smoke return port 65 to flow upward, which helps the smoke in the smoke collection chamber 10 to enter the smoke chamber 63 through the smoke return port 65.
[0083] For example, since the air supply unit is located below the smoke outlet pipe 5, in order to reduce the impact of the arrangement of the smoke outlet pipe 5 on the air supply of the air supply unit, multiple smoke outlet pipes 5 are provided. The multiple smoke outlet pipes 5 are arranged sequentially at intervals along a preset horizontal direction, and the axial direction of the first smoke outlet pipe 5 is perpendicular to the preset horizontal direction. By setting multiple smoke outlet pipes 5, not only can smoke be discharged simultaneously through multiple smoke outlet pipes 5 to send the smoke into the smoking chamber 63 at multiple locations, improving the uniformity of smoke distribution, but also the smoke sent into the smoking chamber 63 by the air supply unit can be sent to the upper grill through the gaps between the multiple smoke outlet pipes 5.
[0084] In some embodiments, the top of the smoke collection housing 1 is provided with an inspection port 13, and an inspection cover 14 is installed at the inspection port 13. The inspection cover 14 can selectively open and close the inspection port 13. The inspection port 13 can be opened by opening the inspection cover 14 to facilitate maintenance of the structure inside the smoke collection chamber 10.
[0085] For example, the inspection cover 14 is detachably mounted to the smoke collection housing 1, such as by fasteners like bolts. Alternatively, other methods can be used to open and close the inspection port 13. For instance, the inspection cover 14 has a first end and a second end opposite to each other. The first end of the inspection cover 14 is rotatably mounted to the smoke collection housing 1, and the second end is detachably connected to the smoke collection housing 1. Simply disconnect the second end of the inspection cover 14 from the smoke collection housing 1, then rotate the inspection cover 14 to one side of the inspection port 13, fully exposing the inspection port 13. Maintenance personnel can then repair the structure inside the smoke collection chamber 10 through the inspection port 13. Upon completion of maintenance, the inspection cover 14 is rotated in the opposite direction to close the inspection port 13, and then the second end of the inspection cover 14 is reconnected to the smoke collection housing 1.
[0086] In some embodiments, such as Figure 1 and Figure 2As shown, a supporting boss is provided inside the furnace body 6, which supports the end of the flue pipe 5 away from the return flue port 65. This arrangement ensures that one end of the flue pipe 5 is supported by the return flue pipe 32, and the other end is supported by the supporting boss, improving the stability of the flue pipe 5. It should be noted that the supporting boss can be an existing protrusion structure in the inner wall of the furnace body 6, or it can be a newly added protrusion structure; no specific limitation is made here.
[0087] In some embodiments, such as Figure 4 As shown, the return smoke pipe 32 and the outlet smoke pipe 5 are connected by an insertion, and the return smoke pipe 32 is easy and quick to assemble and disassemble. In other embodiments, the return smoke pipe 32 and the outlet smoke pipe 5 can also adopt an integrated pipe structure.
[0088] In some embodiments, such as Figure 4 As shown, the smoke return valve 31 is a flow regulating valve. It allows users to adjust the opening of the smoke return valve 31 to regulate the flow rate of smoke returned to the smoke chamber 63 according to the actual smoke volume requirements.
[0089] In some embodiments, such as Figure 2 and Figure 10 As shown, the fumigation equipment also includes a smoke sensor 4 installed in the smoke collection housing 1. The detection end of the smoke sensor 4 is located inside the smoke collection chamber 10. The smoke sensor 4 is used to detect whether the smoke concentration in the smoke collection chamber 10 reaches a preset smoke concentration. For example, the smoke sensor 4 is installed on the top of the smoke collection housing 1.
[0090] Both the smoke sensor 4 and the drive unit 22 are electrically connected to the controller of the smoking equipment. When the smoke sensor 4 senses that the smoke concentration in the smoke collection chamber 10 reaches the preset concentration, the controller controls the drive unit 22 to drive the sealing cover 21 from the connected position to the disconnected position so as to temporarily store the smoke in the smoke collection chamber 10.
[0091] It should be noted that the preset smoke concentration is a known value, which is embedded in the controller of the fumigation equipment in advance.
[0092] In other embodiments, for the manual control of the sealing cover 21 to open and close the smoke collection port 64, a smoke sensor 4 with an integrated alarm function can be used. When the smoke sensor 4 detects that the smoke concentration in the smoke collection chamber 10 has reached a preset concentration, the smoke sensor 4 will automatically sound an alarm, reminding the user to manually control the sealing cover 21 to close the smoke collection port 64. Alternatively, a separate alarm unit electrically connected to the controller can be added, such as an alarm indicator light or a buzzer. When the smoke sensor 4 detects that the smoke collection chamber 10 is full of smoke, the alarm unit will issue an alarm, reminding the user that the smoke collection chamber 10 is full of smoke and that the sealing cover 21 should be used to close the smoke collection port 64 in time.
[0093] In some embodiments, such as Figure 1 and Figure 10As shown, the smoke collection housing 1 has an installation window with a transparent observation window 11. The user can observe whether the smoke collection housing 1 is filled with smoke through the observation window 11. When it is confirmed that the smoke collection housing 1 is full of smoke, the user can close the smoke collection port 64 using the sealing cover 21. Alternatively, the observation window 11 and a smoke sensor 4 can be installed simultaneously. If the smoke sensor 4 malfunctions, the user can observe whether the smoke collection housing 1 is full of smoke through the observation window 11.
[0094] It should be noted that, due to the high temperature of the smoke inside the smoke collection chamber 10, the observation window 11 is made of high-temperature resistant transparent glass. For example, the installation window is located at the top of the smoke collection chamber 10, allowing the user to observe through the observation window 11 whether the smoke collection chamber 10 is filled with smoke.
[0095] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.
[0096] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A smoking equipment, characterized in that, include: The oven body (6) has a smoking chamber (63), and a smoke collection port (64) and a smoke return port (65) that are both connected to the smoking chamber (63). A grill is provided inside the smoking chamber (63). The smoke collection port (64) is located above the grill, and the smoke return port (65) is located below the grill. A smoke collection device, comprising a smoke collection housing (1), a smoke collection on / off control structure (2), and a smoke return on / off control structure (3), wherein the smoke collection housing (1) has a smoke collection chamber (10), the smoke collection on / off control structure (2) is capable of controlling the smoke chamber (63) to selectively connect and disconnect from the smoke collection chamber (10) through the smoke collection port (64), and the smoke return on / off control structure (3) is capable of controlling the smoke collection chamber (10) to selectively connect and disconnect from the smoke collection chamber (63) through the smoke return port (65); A circulating fan unit (8) is provided in the smoke collection chamber (10). The circulating fan unit (8) is used to send the smoke in the smoke collection chamber (10) into the smoke chamber (63) through the smoke return port (65) and form a smoke circulation through the smoke collection port (64).
2. The smoking equipment according to claim 1, characterized in that, The smoke collection shell (1) is located on the outside of the furnace body (6). The smoke collection shell (1) has an open end. The open end of the smoke collection shell (1) is set towards the outer wall of the furnace body (6) and surrounds the outer wall of the furnace body (6) to form the smoke collection chamber (10).
3. The smoking equipment according to claim 2, characterized in that, The top of the smoke collection housing (1) is provided with an inspection port (13), and an inspection cover (14) is installed at the inspection port (13). The inspection cover (14) can selectively open and close the inspection port (13).
4. The smoking equipment according to claim 2, characterized in that, One end of the flue gas inlet (64) extends to the outer wall of the furnace body (6) to block the opening of the flue gas collection shell (1).
5. The smoking apparatus according to any one of claims 1 to 4, characterized in that, The furnace body (6) is provided with a smoke exhaust hole that communicates with the smoke chamber (63). The smoke exhaust equipment also includes a smoke exhaust valve for controlling the smoke exhaust hole to selectively communicate with or disconnect from the outside atmosphere.
6. The smoking apparatus according to any one of claims 1 to 4, characterized in that, The smoke collection on / off control structure (2) includes: A sealing cover (21) is movably connected to the smoke collection housing (1). The sealing cover (21) is located inside the smoke collection chamber (10). The sealing cover (21) has a communication position for opening the smoke collection port (64) and a disconnection position for blocking the smoke collection port (64).
7. The smoking equipment according to claim 6, characterized in that, The smoke collection on / off control structure (2) further includes a drive unit (22) installed on the smoke collection housing (1). The output end of the drive unit (22) is connected to the sealing cover (21). The drive unit (22) is used to drive the sealing cover (21) to move back and forth between the connected position and the disconnected position.
8. The smoking apparatus according to any one of claims 1 to 4, characterized in that, The smoke return on / off control structure (3) includes: A return smoke pipe (32) is provided, one end of which is connected to the smoke collection chamber (10), and the other end of which is provided through the return smoke port (65) and connected to the smoking chamber (63). A smoke return valve (31) is provided on the smoke return pipe (32) and is used to control the opening and closing of the smoke return pipe (32).
9. The smoking equipment according to claim 8, characterized in that, The smoking chamber (63) is provided with a smoke outlet pipe (5) located below the grill. The smoke outlet pipe (5) is connected to the smoke return pipe (32). The upper and / or lower sides of the smoke outlet pipe (5) are provided with multiple smoke outlet holes (51).
10. The smoking apparatus according to any one of claims 1 to 4, characterized in that, The fumigation equipment also includes a smoke sensor (4) installed in the smoke collection housing (1). The detection end of the smoke sensor (4) is located in the smoke collection chamber (10). The smoke sensor (4) is used to detect whether the smoke concentration in the smoke collection chamber (10) reaches the preset smoke concentration. And / or, the smoke collection housing (1) is provided with an installation window, and the installation window is equipped with a transparent observation window (11) for observing whether the smoke collection chamber (10) is filled with smoke.