Internal circulation steam cabinet

Abstract

The utility model relates to the technical field of food processing equipment, in particular to an internal circulation steam cabinet which comprises a cabinet body and a fan, the cabinet body is provided with an exhaust port, the fan is arranged at the exhaust port, an air outlet port of the fan is connected with an exhaust pipe, and a first adjusting air valve is arranged in the exhaust pipe and used for adjusting the air outlet amount of the exhaust pipe; the exhaust pipe is connected with an air return pipe communicated with the cabinet body, the connecting position of the air return pipe and the exhaust pipe is located between the air inlet port and the air outlet port of the exhaust pipe, and a second adjusting air valve is arranged in the air return pipe and used for adjusting the air return amount of the air return pipe. When hot steam needs to circularly flow in the steam cabinet, the fan is started, the valve of the first adjusting air valve is closed, and the valve of the second adjusting air valve is opened, so that the hot steam in the cabinet body can be extracted from the exhaust port, then enters the air return pipe through the exhaust pipe and finally enters the cabinet body, and the hot steam circularly flows in the steam cabinet. Therefore, air flow in the cabinet body is increased, and the phenomenon that condensed water easily generated by hot steam is condensed on pastries is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to an internal circulation steaming cabinet. Background Art

[0002] Steam cabinets are widely used in the field of pastry processing, and their main function is to steam pastries. The working principle of the steam cabinet is: hot steam is introduced to heat the pastries in the steam cabinet to make them mature. After steaming is completed, the hot steam is quickly discharged, and then the cabinet door is opened to transport food.

[0003] At present, a steaming cabinet generally includes a cabinet body and a fan. An exhaust port is arranged on the top of the cabinet body, and the fan is arranged at the exhaust port. After steaming is completed, the fan draws out the hot steam in the steaming cabinet through the exhaust port.

[0004] However, the problem with the prior art is that the fan of the existing steam cabinet cannot realize the circulation of hot steam in the steam cabinet, which causes the hot steam to easily generate condensed water that condenses on the pastries and affects the quality of the pastries. Utility Model Content

[0005] One of the main purposes of the utility model is to provide an internal circulation steam cabinet, aiming to solve the problem that the fan of the existing steam cabinet cannot realize the circulation of hot steam in the steam cabinet, resulting in the hot steam easily generating condensed water condensing on the pastries and affecting the quality of the pastries.

[0006] In order to achieve the above-mentioned purpose of the utility model, the utility model provides an internal circulation steam cabinet, including a cabinet body and a fan, the cabinet body is provided with an exhaust port, the fan is arranged at the exhaust port, the air outlet port of the fan is connected with an exhaust duct, the exhaust duct is provided with a first regulating air valve for regulating the air outlet volume of the exhaust duct; the exhaust duct is connected with a return air duct communicated with the cabinet body, the position where the return air duct is connected to the exhaust duct is between the air inlet port and the air outlet port of the exhaust duct, and the return air duct is provided with a second regulating air valve for regulating the return air volume of the return air duct.

[0007] Furthermore, return air hoods are provided on the opposite side walls of the cabinet body, a water baffle is provided between the two return air hoods, an outlet communicated with the exhaust port is opened on the water baffle, the inner cavity of the return air hood is configured as a return air duct, and the return air duct is respectively communicated with the return air pipe and the cabinet body.

[0008] Furthermore, the return air cover is provided with a plurality of through slots or a plurality of groups of through slots, and the cabinet body and the return air duct are communicated with each other through the through slots.

[0009] Furthermore, a wall surface of one of the return air hoods facing away from the other return air hood is set as a return air wall surface, and the through groove is set on the return air wall surface.

[0010] Furthermore, a plurality of through slots are provided, and the plurality of through slots are arranged at intervals along the height direction of the return air wall surface.

[0011] Furthermore, the through grooves are provided in a plurality of groups, and the plurality of groups of through grooves are arranged at intervals along the horizontal direction of the return air wall surface, each group of through grooves includes a plurality of through grooves, and the plurality of through grooves of each group of through grooves are arranged at intervals along the height direction of the return air wall surface.

[0012] Furthermore, the spacing between any two adjacent through grooves is uniform.

[0013] Furthermore, two opposite end ports of the return air duct are closed.

[0014] Furthermore, the fan is a variable frequency speed regulating fan.

[0015] Furthermore, the first regulating air valve and / or the second regulating air valve are electric regulating air valves.

[0016] Compared with the prior art, the internal circulation steam cabinet of the utility model has the following beneficial effects:

[0017] The internal circulation steam cabinet of the utility model respectively arranges the first regulating air valve and the second regulating air valve in the exhaust duct and the return air duct. When it is necessary to circulate the hot steam in the steam cabinet, the fan is started, the valve of the first regulating air valve is closed, and the valve of the second regulating air valve is opened. In this way, the hot steam in the steam cabinet can be drawn out from the exhaust port, then enters the return air duct through the exhaust duct, and finally enters the cabinet, so that the hot steam can circulate in the steam cabinet, thereby increasing the air flow in the cabinet, effectively reducing the condensation water easily generated by the hot steam and condensing on the pastry, thereby improving the quality of the pastry. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the internal circulation steam cabinet of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model in which the return air hood is arranged in the cabinet;

[0020] Figure 3 It is a schematic structural diagram of the wind wall surface of the return air hood according to an embodiment of the utility model.

[0021] Numbers in the attached drawings:

[0022] 1. Cabinet; 10. Exhaust port; 11. Steam pipe; 2. Fan; 3. Exhaust duct; 30. First regulating air valve; 4. Return air duct; 40. Second regulating air valve; 5. Return air hood; 50. Return air duct; 51. Return air wall; 510. Through groove; 6. Water retaining plate; 60. Exit; 7. Sealing plate. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0024] In the description of the present invention, it should be understood that the terms "length", "up", "down", "front", "back", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] Please refer to Figure 1-Figure 3 The utility model provides an internal circulation steam cabinet, including a cabinet body 1 and a fan 2. The cabinet body 1 is provided with an exhaust port 10, and the fan 2 is arranged at the exhaust port 10. The air outlet port of the fan 2 is connected with an exhaust pipe 3, and a first regulating air valve 30 is arranged in the exhaust pipe 3. The first regulating air valve 30 is used to adjust the air outlet volume of the exhaust pipe 3; the exhaust pipe 3 is connected with a return air pipe 4 communicated with the cabinet body 1, and the position where the return air pipe 4 is connected to the exhaust pipe 3 is between the air inlet port and the air outlet port of the exhaust pipe 3, and a second regulating air valve 40 is arranged in the return air pipe 4. The second regulating air valve 40 is used to adjust the return air volume of the return air pipe 4.

[0028] The internal circulation steam cabinet of the utility model is provided with a first regulating air valve 30 and a second regulating air valve 40 in the exhaust duct 3 and the return air duct 4 respectively. When it is necessary to circulate hot steam in the steam cabinet, the fan 2 is started, the valve of the first regulating air valve 30 is closed, and the valve of the second regulating air valve 40 is opened. In this way, the hot steam in the cabinet body 1 of the steam cabinet can be extracted from the exhaust port 10, and then enters the return air duct 4 through the exhaust duct 3, and finally enters the cabinet body 1, so that the hot steam can circulate in the steam cabinet, thereby increasing the air flow in the cabinet body 1, effectively reducing the condensation water that is easy to be generated by the hot steam and condensed on the pastry, thereby improving the quality of the pastry.

[0029] Of course, the cabinet 1 is provided with a steam pipe 11 extending outside the cabinet 1, and hot steam enters the cabinet 1 from the steam pipe 11 to steam pastries. When the hot steam is steamed in the cabinet 1 of the steam cabinet, when it is necessary to discharge the hot steam, the fan 2 is started, the valve of the second regulating air valve 40 is closed, and the valve of the first regulating air valve 30 is opened, so that the hot steam is discharged from the exhaust pipe 3 to the atmosphere. Of course, the cabinet 1 is provided with a pressure sensor and a temperature sensor, and the pressure in the cabinet 1 is detected by the pressure sensor, and the temperature in the cabinet 1 is detected by the temperature sensor. When the pressure in the cabinet 1 of the steam cabinet is greater than the set pressure, the fan 2 is started, the valve of the second regulating air valve 40 is closed, and the exhaust volume of the first regulating air valve 30 is adjusted, so that the cabinet 1 of the steam cabinet is in a slightly depressurized state, so as to avoid the pressure in the cabinet 1 of the steam cabinet being greater than the set pressure and affecting the quality of the steamed pastries.

[0030] Among them, the fan 2 is a variable frequency speed regulating fan 2, and the variable frequency speed regulating fan 2 can be used to adjust the rotation speed of the fan 2, so as to be more conducive to promoting the air flow in the cabinet 1. Specifically, the air flow in the cabinet 1 can be detected by a sensor for detecting the air flow, and the sensor for detecting the air flow is electrically connected to the variable frequency speed regulating fan 2. When the sensor for detecting the air flow detects that the air flow in the cabinet 1 is too large, the speed of the variable frequency regulating fan 2 can be automatically reduced; when the sensor for detecting the air flow detects that the air flow in the cabinet 1 is too small, the speed of the variable frequency regulating fan 2 can be automatically increased. That is to say, it can be understood that the variable frequency speed regulating fan 2 can make the air flow in the cabinet 1 reach a dynamic balance, so as to be more conducive to improving the quality of steamed pastries.

[0031] The first regulating air valve 30 and / or the second regulating air valve 40 are electric regulating air valves. The first regulating air valve 30 and the second regulating air valve 40 of the present embodiment are both configured as electric regulating air valves. The electric regulating air valve in the exhaust duct 3 and the electric regulating air valve in the return duct 4 are both electrically connected to the variable frequency speed regulating fan 2. The electric regulating air valve in the exhaust duct 3 can automatically adjust the exhaust air volume, and the electric regulating air valve in the return duct 4 can automatically adjust the return air volume entering the cabinet 1, so that the air flow in the cabinet 1 can achieve the effect of automatic adjustment and balance.

[0032] On the basis of the above structure, a return air cover 5 is further provided on the opposite side walls of the cabinet 1, a water baffle 6 is provided between the two return air covers 5, an outlet 60 communicating with the exhaust port 10 is provided on the water baffle 6, and the inner cavity of the return air cover 5 is configured as a return air duct 50, which communicates with the return air duct 4 and the cabinet 1 respectively. When the hot steam circulates in the steaming cabinet, the hot steam in the cabinet 1 enters the exhaust port 10, the exhaust duct 3, the return air duct 4, and the return air duct 50 in sequence from the outlet 60 of the water baffle 6, and finally returns to the cabinet 1 to complete the internal circulation; when the hot steam is discharged from the cabinet 1 to the atmosphere, the hot steam in the cabinet 1 is discharged from the outlet 60 of the water baffle 6, the exhaust port 10, and the exhaust duct 3 in sequence under the action of the fan 2. In summary, it can be understood that by providing the return air cover 5, the air flow path in the cabinet 1 can be optimized and the quality of the hot steam steamed pastries can be improved.

[0033] In this embodiment, refer to Figure 2 The ports at both ends of the return air duct 50 are closed, and the ports at both ends of the return air duct 50 are closed by a sealing plate 7. The sealing plate 7 is detachably connected to the return air hood 5. The detachable connection between the sealing plate 7 and the return air hood 5 can be connected by means of a buckle or a screw, which is conducive to disassembling the sealing plate 7 and discharging the condensed water accumulated in the return air duct 50. In addition, a plurality of or a plurality of groups of through slots 510 are provided on the return air hood 5, and the through slots 510 connect the cabinet 1 and the return air duct 50, wherein the wall surface of one return air hood 5 facing away from the other return air hood 5 is set as the return air wall surface 51, and the through slots 510 are set on the return air wall surface 51, and the opposite ends of the water retaining plate 6 are respectively connected to the return air wall surfaces 51 of the two return air hoods 5. Of course, a plurality of through slots 510 are provided, and the plurality of through slots 510 are arranged at intervals along the height direction of the return air wall surface 51. It can be seen from this that when the hot steam circulates in the steam cabinet, the circulation path of the air in the cabinet 1 is: the hot steam enters the exhaust port 10, the exhaust duct 3, and the return air duct 4 in sequence from the outlet 60 of the water baffle 6, and the air in the return air duct 4 enters the return air duct 50 from the groove 510 of the return air wall 51 above the water baffle 6, and finally flows back to the cabinet 1 from the groove 510 on the return air wall 51 below the water baffle 6 to steam the pastries.

[0034] In this embodiment, refer to Figure 3 There are multiple groups of through slots 510, and the multiple groups of through slots 510 are arranged at intervals along the horizontal direction of the return air wall surface 51. Each group of through slots 510 includes multiple through slots 510, and the multiple through slots 510 of each group of through slots 510 are arranged at intervals along the height direction of the return air wall surface 51, so that the flow rate of hot steam from the through slots 510 back to the cabinet body 1 can be increased. Among them, the spacing between any two adjacent through slots 510 is uniform, so that the hot steam can steam the pastries evenly, further improving the quality of the steamed pastries.

[0035] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An internal circulation steam cabinet, comprising a cabinet body and a fan, wherein the cabinet body is provided with an exhaust port, the fan is arranged at the exhaust port, and the air outlet port of the fan is connected to an exhaust pipe, characterized in that: A first regulating air valve is provided in the exhaust duct for regulating the air outlet volume of the exhaust duct; the exhaust duct is connected to a return air duct communicated with the cabinet, the position where the return air duct is connected to the exhaust duct is between the air inlet port and the air outlet port of the exhaust duct, and a second regulating air valve is provided in the return air duct for regulating the return air volume of the return air duct.

2. The internal circulation steam cabinet according to claim 1, characterized in that: Return air hoods are arranged on the two opposite side walls in the cabinet body, a water baffle is arranged between the two return air hoods, an outlet communicated with the exhaust port is opened on the water baffle, the inner cavity of the return air hood is configured as a return air duct, and the return air duct is communicated with the return air pipe and the cabinet body respectively.

3. The internal circulation steam cabinet according to claim 2, characterized in that: The return air cover is provided with a plurality of through slots or a plurality of groups of through slots, and the cabinet body and the return air duct are communicated with each other through the through slots.

4. The internal circulation steam cabinet according to claim 3, characterized in that: The wall surface of one of the return air hoods facing away from the other return air hood is set as the return air wall surface, and the through slot is set on the return air wall surface.

5. The internal circulation steam cabinet according to claim 4, characterized in that: A plurality of through slots are provided, and the plurality of through slots are arranged at intervals along the height direction of the return air wall surface.

6. The internal circulation steam cabinet according to claim 4, characterized in that: The through slots are provided in a plurality of groups, and the plurality of groups of through slots are arranged at intervals along the horizontal direction of the return air wall surface. Each group of through slots includes a plurality of through slots, and the plurality of through slots in each group of through slots are arranged at intervals along the height direction of the return air wall surface.

7. The internal circulation steam cabinet according to claim 5 or 6, characterized in that: The spacing between any two adjacent through grooves is uniform.

8. The internal circulation steam cabinet according to claim 4, characterized in that: The ports at two opposite ends of the return air duct are closed.

9. The internal circulation steam cabinet according to claim 1, characterized in that: The fan is a variable frequency speed regulating fan.

10. The internal circulation steam cabinet according to claim 1, characterized in that: The first regulating air valve and / or the second regulating air valve are electric regulating air valves.

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