Cooking stove

Abstract

The utility model relates to the field of food processing, in particular to a cooking stove which comprises a stove body. The combustor assembly comprises at least two combustors arranged in the first direction. The boiler body is supported on the stove body, a plurality of heat conduction grooves located above the burner assembly are formed in the outer surface of the bottom wall of the boiler body at intervals and arranged in the first direction, smoke exhaust holes of the heat conduction grooves are communicated with a chimney through smoke pipes, and the chimney is provided with an air draft device used for promoting smoke to flow. The heating device is simple and compact in structure, heating adjustment and control of at least two heating areas at different degrees can be conveniently achieved, meanwhile, the heating device has high heat efficiency, and energy can be saved.

Description

Technical Field

[0001] This utility model relates to the field of food processing, specifically to a cooking stove. Background Technology

[0002] Existing industrial cooking stoves for rice noodles or food processing use more environmentally friendly gas stoves for cooking food, typically employing direct-fire heating with gaseous fuels such as liquefied petroleum gas, manufactured gas, or natural gas. However, current stoves usually have burners located at the bottom of the pot to heat the bottom. During food processing, different heat levels are needed at different stages of cooking, requiring control of the boiling state of water in different areas of the pot. This is usually achieved by adjusting the combustion state of the burner at the bottom of the pot. However, the flame spreads and flows around the relatively smooth bottom of the pot, affecting each other and making it impossible to achieve stable control of the combustion state in that area. The heating degree cannot be precisely controlled, and this structure also results in a large amount of heat being carried away by flue gas, leading to low thermal efficiency and energy waste. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a cooking stove with a simple and compact structure that facilitates the adjustment and control of different heating levels in at least two heating zones, while also possessing high thermal efficiency and energy-saving properties.

[0004] The purpose of this utility model is achieved as follows: a cooking stove, comprising:

[0005] stove body;

[0006] A burner assembly comprising at least two burners arranged along a first direction;

[0007] The pot body is supported on the stove body. The bottom wall of the pot body has a plurality of heat-conducting grooves arranged at intervals above the burner assembly. The plurality of heat-conducting grooves are arranged along a first direction. The exhaust holes of each heat-conducting groove are connected to the chimney through a flue. The chimney is equipped with a ventilation device for promoting the flow of flue gas.

[0008] The bottom wall of the pot has a wave-shaped profile extending along a first direction, and the heat-conducting groove is formed in the trough of the outer surface of the bottom wall.

[0009] The pot body is provided with a liner plate, which is connected to the inner wall of the pot body on both sides. A sandwich space is formed between the liner plate and the bottom wall of the pot body. The flue is located in the sandwich space. The liner plate is provided with water passage holes.

[0010] The initial section of the liner is arranged in a gradually descending manner.

[0011] In two adjacent heat conduction grooves, the exhaust port of the first heat conduction groove is located on the first side section, and the exhaust port of the second heat conduction groove is correspondingly located on the second side section opposite to the first side section. The exhaust ports of the multiple heat conduction grooves are arranged alternately.

[0012] The flue includes a primary flue section and a secondary flue section. The exhaust port of the heat-conducting groove is connected to the primary flue section. The primary flue section includes a connected transverse pipe section and a longitudinal pipe section. The longitudinal pipe section is connected to the exhaust port, and the exhaust end of the transverse pipe section is connected to the secondary flue section. The secondary flue section is connected to the chimney. The transverse pipe sections of adjacent primary flue sections extend in opposite directions.

[0013] The bottom wall of the pot body includes multiple heat exchange elements arranged in an array, each heat exchange element having:

[0014] The bent section encloses and forms a heat-conducting groove with its opening facing downwards.

[0015] A lateral extension is connected to the first side of the bend;

[0016] In this configuration, the upper heat exchanger is connected to the second side of the bent portion of the next heat exchanger via the lateral extension portion;

[0017] The second side of the bent portion of the heat exchanger at the beginning of the array and the first side of the bent portion of the heat exchanger at the end are respectively connected to the pot body.

[0018] At least one end of the heat conduction groove is provided with a side sealing plate, and the section of the heat conduction groove corresponding to the smoke exhaust hole is provided with a bottom sealing plate. A smoke exhaust channel is left between the bottom sealing plate and the bottom of the heat conduction groove.

[0019] It also includes a gas supply mechanism, which includes a main air intake pipe and multiple branch connecting pipes. Each branch connecting pipe is connected to the main air intake pipe, and each branch connecting pipe is equipped with a gas flow regulating valve. The output end of each branch connecting pipe is connected to a burner. The burner is a grate burner, and the long axis of the grate of the burner is perpendicular to the first direction.

[0020] The pot body is equipped with a partition, which divides the heating zone inside the pot body into a first heating section and a second heating section arranged sequentially along the material flow direction. A material passage gap is left between the lower part of the partition and the bottom wall of the pot body.

[0021] The above scheme has the following beneficial effects: the heating zone corresponding to each burner can be controlled by adjusting the differences in the corresponding burners, thereby controlling the difference in firepower. Multiple heat-conducting grooves are provided on the bottom wall of the pot, creating an uneven surface with a large heat exchange area. This allows for more thorough contact between the flame and the bottom of the pot, increasing heat exchange efficiency. Simultaneously, the uneven structure restricts the diffusion of flame and flue gas in the first direction. After the flame diffuses further into the heat-conducting grooves, it is drawn in and continues to flow and diffuse along the extension direction of the grooves. This allows the flue gas to flow and exchange heat along the path perpendicular to the first direction. Because the diffusion of flame and flue gas in the first direction is obstructed, the heating of the corresponding bottom wall by different burners in different areas of the first direction is relatively independent, with minimal mutual influence. This invention allows the pot to form significantly different heating zones, enabling the processing of materials at different stages. For example, in the processing of vermicelli, at least two zones with different heating levels are needed. A lower heat is required when the paste-like material is added to the pot to set the slurry; excessively intense heating would cause the slurry to break apart upon entering the pot. Once the slurry has set, a higher heat is needed to accelerate the cooking of the partially set vermicelli. This invention facilitates the adjustment and control of different heating levels in at least two zones, while also achieving high thermal efficiency and saving energy.

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the structure of this utility model after the liner plate has been removed;

[0025] Figure 3 A schematic diagram showing the arrangement of multiple heat exchangers;

[0026] Figure 4 This is a schematic diagram of the heat exchanger structure;

[0027] Figure 5 This is a schematic diagram of the cross-sectional structure of the heat exchanger.

[0028] In the attached diagram, 101 is the stove body, 102 is the burner assembly, 103 is the burner, 104 is the pot body, 105 is the heat conduction groove, 106 is the flue pipe, 107 is the chimney, 108 is the exhaust device, 109 is the partition plate, 110 is the first heating section, 111 is the second heating section, 112 is the material passage gap, 113 is the liner plate, 114 is the interlayer space, 115 is the water passage hole, 116 is the heat exchange element, and 117 is... The section includes the following components: 118 is the lateral extension, 119 is the exhaust port, 120 is the primary flue section, 121 is the lateral section, 122 is the longitudinal section, 123 is the secondary flue section, 124 is the side sealing plate, 125 is the lower sealing plate, 126 is the exhaust channel, 127 is the gas supply mechanism, 128 is the main air intake pipe, 129 is the branch connection pipe, 130 is the gas flow regulating valve, 131 is the water supply pipe, and 132 is the discharge port. Detailed Implementation

[0029] Referring to the accompanying drawings, specific embodiments of the present invention will be described in detail.

[0030] 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.

[0031] In the description of this application, it should be understood that the terms center, upper, lower, front, back, left, right, vertical, horizontal, top, bottom, inner, and outer, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this application. In the description of this application, 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 indicated technical features. Thus, features defined as first and second can be used to explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, multiple means two or more. It should be noted that in practical applications, due to limitations in equipment accuracy or installation errors, absolute parallelism or perpendicularity is difficult to achieve. The descriptions of vertical, parallel, or unidirectional in this application are not absolute limitations, but rather indicate that vertical or parallel structural settings can be achieved within a preset error range, and the corresponding preset effects can be achieved. In this way, the technical effects of the defined features can be maximized, and the corresponding technical solutions can be easily implemented, thus having high feasibility.

[0032] In the description of this specification, references to the terms "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. 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.

[0033] See Figures 1 to 5 One embodiment of a cooking stove includes a stove body 101, a burner assembly 102, and a pot body 104. The stove body 101 may be made of stainless steel, which has good corrosion resistance and high temperature resistance, and serves as the main support for the entire cooking stove. The size of the stove body 101 can be customized according to actual needs to adapt to different scales of cooking needs; this embodiment does not limit this.

[0034] The burner assembly 102 can be integrated into the stove body 101 or placed below the pot body 104. It includes at least two burners 103 arranged along a first direction, which can be the material movement direction. For example, in a rectangular pot body 104, the length direction can be the first direction, allowing the material to move along this direction and undergo processes such as heating, shaping, and maturation. The burners 103 can be gas, liquid, or solid burners. Preferably, gas burners 103 are used, employing natural gas, liquefied petroleum gas, or other gases as fuel. Gas fuel burners 103 offer advantages such as high combustion efficiency, good stability, low pollutant emissions, clean combustion, easy control, rapid start-up and shutdown, and ease of detection and maintenance. The burners 103 can be grate-type burners 103, with the long axis of the grate perpendicular to the first direction. This allows them to be adapted to the arrangement of the heat-conducting groove 105 and to heat the heat-conducting groove 105.

[0035] A pot body 104, supported on the stove body 101 and located above the burner assembly 102, has multiple heat-conducting grooves 105 spaced apart on the outer surface of its bottom wall, positioned above the burner assembly 102. These grooves are arranged along a first direction. Each heat-conducting groove 105 has a smoke exhaust port 119 connected to a chimney 107 via a smoke pipe 106. The chimney 107 is equipped with an exhaust device 108 to facilitate the flow of flue gas. The exhaust device 108 can be a fan or an ejector. It draws flue gas from the heat-conducting grooves 105 through the smoke pipe 106 into the chimney 107, allowing the flame to continuously circulate along the walls of the heat-conducting grooves 105. A water supply pipe 131 can be installed at the upstream end of the pot body 104. This pipe allows for water supply, temperature control, and overflow of water to carry away the cooked material for unloading. The downstream end of the pot body 104 in the first direction can be provided with a discharge port 132 for convenient automatic feeding.

[0036] It is understood that the heating zone includes at least two burners 103 arranged along the first direction, and the heating level can be controlled by controlling the firepower of the corresponding burner 103. Multiple heat-conducting grooves 105 are provided on the bottom wall of the pot body 104. The bottom wall of the pot body 104 is uneven, providing a large heat exchange area, allowing for more thorough contact between the flame and the bottom of the pot, thus increasing heat exchange efficiency. Simultaneously, the uneven structure restricts the diffusion of flame and flue gas in the first direction. After the flame diffuses further into the heat-conducting grooves 105, it is drawn in and continues to flow and diffuse along the extension direction of the heat-conducting grooves 105, allowing the flue gas on the path perpendicular to the first direction to continue flowing and exchanging heat. Because the diffusion of flame and flue gas in the first direction is obstructed, the first direction... The different upward-facing areas corresponding to different burners 103 have relatively independent heating conditions on the bottom wall, with minimal mutual influence. This allows the pot body 104 to form significantly different heating zones, enabling the processing of materials at different stages. For example, in the vermicelli processing, at least two zones with different heating levels are required. A lower heat is needed during the initial stage of adding the paste-like material to the pot to set the slurry; excessively intense heating would cause the slurry just entering the pot body 104 to break apart. Once the slurry has set, a higher heat is needed to accelerate the maturation of the initially set vermicelli. This invention facilitates the adjustment and control of different heating intensities in at least two heating zones, while also achieving high thermal efficiency and saving energy.

[0037] In some embodiments, the bottom wall of the pot body 104 has a wave-shaped profile extending along a first direction, and the heat-conducting groove 105 is formed in the troughs on the outer surface of the bottom wall. The waveform of the wave-shaped profile may include a sine wave, square wave, triangular wave, rectangular wave, or irregular curved wave. The wave-shaped profile forms alternating protrusions and depressions on both the inner and outer surfaces of the bottom wall, which can achieve a large heat exchange capacity and can exchange heat with the medium inside the pot body 104, such as water or oil. The outer surface of the bottom wall has a large heat exchange area, which can also exchange heat with the flame, thus achieving a high-efficiency heat exchange. By using a wave-shaped profile, the bottom wall can be formed by continuously bending or splicing plates of equal thickness, which facilitates processing and saves materials while achieving a high heat exchange efficiency.

[0038] In some embodiments, the bottom wall of the pot body 104 includes a plurality of heat exchange elements 116 arranged in an array. Each heat exchange element 116 has a bent portion 117 and a lateral extension portion 118: the bent portion 117 encloses a downward-facing heat-conducting groove 105; the lateral extension portion 118 is connected to the first side of the bent portion 117, forming a protrusion; wherein, in adjacent heat exchange elements 116, the upper heat exchange element is connected to the second side of the bent portion 117 of the next heat exchange element 116 through the lateral extension portion 118; the second side of the bent portion 117 of the first heat exchange element 116 in the array and the first side of the bent portion 117 of the end heat exchange element 116 are respectively connected to the pot body 104. Using this method, the bottom wall portion of the pot body can be formed by splicing multiple heat exchange elements 116, which reduces the requirements for processing equipment. This method also facilitates the installation of the flue pipe 106, such as drilling and welding.

[0039] In some embodiments, the exhaust port 119 of the first heat conduction groove 105 in two adjacent heat conduction grooves 105 is located on the first side section, and the exhaust port 119 of the second heat conduction groove 105 is correspondingly located on the second side section opposite to the first side section. The exhaust ports 119 of the multiple heat conduction grooves 105 are arranged alternately. In this way, as the temperature of the flue gas gradually decreases as it travels a distance in the flue pipe 106, the water in the pot body 104 can be made to be more uniform in the left and right directions by alternating arrangements.

[0040] In some embodiments, the flue includes a primary flue section and a secondary flue section. The exhaust port 119 of the heat-conducting groove 105 is connected to the primary flue section 120. Each primary flue section 120 includes a connected transverse pipe section 121 and a longitudinal pipe section 122. The longitudinal pipe section 122 is connected to the exhaust port 119, and the outlet end of the transverse pipe section 121 is connected to the secondary flue section 123. The secondary flue section 123 is connected to the chimney 107. The transverse pipe sections 121 of adjacent primary flue sections 120 extend in opposite directions. This method allows the flue gas within the flue 106 to move longitudinally and laterally, enabling heat exchange at different heights and widths within the water body. The large travel distance of the flue gas allows for a large heat exchange area, and waste heat is recovered through the flue 106, improving thermal energy utilization and achieving energy-saving effects.

[0041] In some embodiments, a side sealing plate 124 is provided at at least one end of the heat-conducting groove 105. Preferably, a side sealing plate 124 is provided at both ends of the guide groove 105. A lower sealing plate 125 is provided in the groove section of the heat-conducting groove 105 corresponding to the smoke exhaust hole 119. A smoke exhaust channel 126 is left between the lower sealing plate 125 and the bottom of the heat-conducting groove 125. In this way, the negative pressure provided by the smoke pipe 106 can draw the smoke along the extension direction of the groove as much as possible, which can have a better suction effect. The side sealing plate 124 can reduce or avoid excessive air entering the guide groove laterally in the groove section corresponding to the smoke exhaust hole 119, and minimize pressure damage. It can form a transverse negative pressure zone in the heat-conducting groove 105 in the pipe opening area, and can continuously draw in smoke in the extension direction of the heat-conducting groove 105, so that the smoke in the entire heat-conducting groove 105 can be drawn away.

[0042] In some embodiments, the gas supply mechanism 127 is also included. The gas supply mechanism 127 includes a main air inlet pipe 128 and a plurality of branch connecting pipes 129. Each branch connecting pipe 129 is connected to the main air inlet pipe 128, and each branch connecting pipe 129 is provided with a gas flow regulating valve 130. Each gas flow regulating valve 130 can be installed on the side wall of the stove body 101. The amount of fuel supplied can be controlled by the flow regulating valve, thereby controlling the firepower. The output end of each branch connecting pipe 129 is connected to the burner 103.

[0043] In some embodiments, the pot body 104 is provided with a partition 109, which divides the heating zone in the pot body 104 into a first heating section 110 and a second heating section 111 arranged sequentially along the material flow direction. A material passage gap 112 is left between the lower part of the partition 109 and the bottom wall of the pot body 104. The partition 109 allows for the division of heating zones, limiting the intensity of water exchange between different heating sections within the pot 104. This differentiates the heating levels of different sections and allows for the control of the food being cooked in each section. For example, in vermicelli processing, after the vermicelli exits the extruder head, it continuously swings and falls into the first heating zone. After being shaped and cooked by the boiling water and gas in this zone, the vermicelli, leaving material between the lower part of the partition 109 and the bottom wall of the pot 104, enters the second heating zone 111 through the gap 112. It is further cooked and floats to the surface. The floated vermicelli is then confined by the partition 109 and cannot enter the first heating zone 110, thus preventing interference with the vermicelli feeding process in the first heating zone 110. The partition 109 ensures that the vermicelli is cooked according to different stages of heating, preventing it from churning and swirling around in the water flow within the pot 104.

[0044] In some embodiments, the pot body 104 is provided with a liner 113, which is connected to the inner wall of the pot body 104 on both sides. This connection can be a fixed connection such as welding or integral molding, or a detachable connection such as bolt connection or snap-fit ​​connection. The liner 113 and the bottom wall of the pot body 104 form an interlayer space 114, which is filled with water through a water hole 115. The flue 106 is located in the interlayer space 114 and can exchange heat with the water entering the interlayer space 114. The liner 113 is provided with a water hole 115, which allows the flow and exchange of water and gas on both sides of the liner 113. It is understandable that by setting the liner 113, the pot body 104 can be separated from the food through the interlayer. The food processed in the pot body 104 cannot sink to the bottom of the pot, but sinks on the liner 113. It will not cause the food to stick and paste on the bottom wall of the pot. When the bottom wall of the pot body is uneven, it can prevent the food from sinking into the gaps and prevent the food from moving in the pot body 104.

[0045] Furthermore, the initial section of the liner 113 is arranged in a gradually descending manner. The initial section of the liner 113 can be arranged in a flat, inclined manner, or in a rounded transition manner. The burner 103 is a flame-grate type burner 103, and the long axis of the flame grate of the burner 103 is perpendicular to the first direction. It is understandable that in the process of industrial food processing, the material is usually fed into a certain area of ​​the pot body 104 based on gravity. With this method of feeding, the freshly fed material is prone to stacking in the vertical direction, forming adhesion and other phenomena. If the paste-like slurry cannot be spread out evenly after entering the pot body 104, it is easy to clump together. By setting the liner 113, the slurry gradually matures and solidifies after entering the water. When the slurry at the lower position comes into contact with the initial section of the liner 113, due to the gradually descending structure, under the influence of gravity, the vertical material gradually turns into a horizontal position and gradually slides away, avoiding accumulation at that point.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A cooking stove, characterized in that, include: Kitchen body(101); The burner assembly (102) includes at least two burners (103) arranged along a first direction; The pot body (104) is supported on the stove body (101). The bottom wall of the pot body (104) is provided with a plurality of heat-conducting grooves (105) arranged at intervals above the burner assembly (102). The plurality of heat-conducting grooves (105) are arranged along a first direction. The exhaust holes (119) of each heat-conducting groove (105) are connected to the chimney (107) through the flue pipe (106). The chimney (107) is provided with a ventilation device (108) for promoting the flow of flue gas.

2. The cooking stove according to claim 1, characterized in that, The bottom wall of the pot body (104) has a wave-shaped profile extending along a first direction, and the heat-conducting groove (105) is formed in the trough of the outer surface of the bottom wall.

3. The cooking stove according to claim 1, characterized in that, The pot body (104) is provided with a liner (113) with its two sides connected to the inner wall of the pot body (104). The liner (113) and the bottom wall of the pot body (104) form a sandwich space (114). The smoke pipe (106) is located in the sandwich space (114). The liner (113) is provided with a water passage hole (115).

4. The cooking stove according to claim 3, characterized in that, The initial section of the liner (113) is arranged in a gradually descending manner.

5. The cooking stove according to claim 1, characterized in that, In two adjacent heat conduction grooves (105), the exhaust port (119) of the first heat conduction groove (105) is located on the first side section, and the exhaust port (119) of the second heat conduction groove (105) is correspondingly located on the second side section opposite to the first side section. The exhaust ports (119) of the multiple heat conduction grooves (105) are arranged alternately.

6. The cooking stove according to any one of claims 1 to 5, characterized in that, The flue includes a primary flue section and a secondary flue section. The exhaust port (119) of the heat-conducting groove (105) is connected to the primary flue section (120). The primary flue section (120) includes a transverse pipe section (121) and a longitudinal pipe section (122) that are connected. The longitudinal pipe section (122) is connected to the exhaust port (119). The exhaust end of the transverse pipe section (121) is connected to the secondary flue section (123). The secondary flue section (123) is connected to the chimney (107). The transverse pipe sections (121) of adjacent primary flue sections (120) extend in opposite directions.

7. The cooking stove according to claim 6, characterized in that, The bottom wall of the pot body (104) includes a plurality of heat exchange elements (116) arranged in an array, each heat exchange element (116) having: The bent portion (117) encloses and forms a heat-conducting groove (105) with the opening facing downward; A lateral extension (118) is connected to the first side of the bent portion (117); Among them, in the adjacent heat exchanger (116), the upper heat exchanger is connected to the second side of the bent portion (117) of the next heat exchanger (116) through the lateral extension (118); The second side of the bent portion (117) of the first heat exchanger (116) of the array and the first side of the bent portion (117) of the end heat exchanger (116) are respectively connected to the pot body (104).

8. The cooking stove according to any one of claims 1 to 5, characterized in that, At least one end of the heat conduction groove (105) is provided with a side sealing plate (124), and the section of the heat conduction groove (105) corresponding to the smoke exhaust hole (119) is provided with a lower sealing plate (125). A smoke exhaust channel (126) is left between the lower sealing plate (125) and the bottom of the heat conduction groove (105).

9. The cooking stove according to any one of claims 1 to 5, characterized in that, It also includes a gas supply mechanism (127), which includes a main air intake pipe (128) and multiple branch connecting pipes (129). Each branch connecting pipe (129) is connected to the main air intake pipe (128), and each branch connecting pipe (129) is provided with a gas flow regulating valve (130). The output end of each branch connecting pipe (129) is connected to a burner (103). The burner (103) is a flame bar type burner (103), and the long axis of the flame bar of the burner (103) is perpendicular to the first direction.

10. The cooking stove according to any one of claims 1 to 5, characterized in that, The pot body (104) is provided with a partition (109), which divides the heating zone inside the pot body (104) into a first heating section (110) and a second heating section (111) arranged sequentially along the material flow direction. A material passage gap (112) is left between the lower part of the partition (109) and the bottom wall of the pot body (104).

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