A liquefied gas frying boiler with temperature control convenience and working method thereof

Abstract

This invention discloses a liquefied petroleum gas (LPG) frying boiler with easy temperature control and its operating method, specifically relating to the field of frying boiler technology. It includes a mounting frame and multiple LPG stoves, all of which are fixedly installed at the bottom of the mounting frame. Each LPG stove has a boiler assembly on its top, and each boiler assembly includes a boiler body, two sliding sleeves, two second sliding groove plates, and two second sliding plates. The opposing sides of the two sliding sleeves are fixedly connected to the boiler body. This invention uses a stepper motor output shaft to drive a lead screw, thereby moving the support frame and boiler body backward. When the first light is energized, it indicates that the current boiler body has moved to a non-heating position away from the LPG stove. Subsequently, another boiler body can be horizontally moved along the length of the mounting frame to a heating position directly above the current LPG stove. Overall, temperature control is convenient and the movement is flexible, effectively improving frying processing efficiency and the stability of finished product quality.

Description

Technical Field

[0001] This invention relates to the field of frying boiler technology, and more specifically, to a liquefied petroleum gas (LPG) frying boiler with easy temperature control and its operating method. Background Technology

[0002] Deep frying boilers are specialized heating equipment used for industrialized and large-scale frying processing of food. They are widely used in frozen foods, snack foods, cooked food products, and catering kitchens, and are mainly used to achieve continuous frying of ingredients, such as high-temperature shaping, low-temperature slow frying, and double frying to enhance crispness.

[0003] Existing frying equipment mostly adopts a structure with a fixed pot body and a single heat source. One piece of equipment can only maintain a single frying temperature, making it difficult to simultaneously complete multiple frying operations such as high-temperature shaping, low-temperature slow frying, and double frying on the same equipment. When it is necessary to fry food in stages with controlled temperature, operators need to transfer the food between multiple frying equipment with different temperatures. This not only makes the operation process cumbersome, labor costs high, and production efficiency low, but also easily causes food damage and deformation during the transfer process, resulting in poor consistency and unstable quality of the finished product. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a liquefied gas frying boiler and its working method that are easy to control the temperature, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a liquefied petroleum gas (LPG) frying boiler that is easy to control temperature, comprising a mounting frame and multiple LPG stoves, wherein the multiple LPG stoves are fixedly installed at the bottom of the inner side of the mounting frame, and a boiler assembly is provided on the top of each of the multiple LPG stoves. Each of the multiple boiler assemblies includes a boiler body, two sliding sleeves, two second sliding groove plates, and two second sliding plates. The opposing sides of the two sliding sleeves are fixedly connected to the boiler body, the two second sliding groove plates are fixedly installed on the front side of the boiler body, and the two second sliding plates are fixedly installed on the rear side of the boiler body.

[0006] The mounting bracket has two first sliding plates fixedly connected to its inner front side, and multiple second sliding plates are located on the outer sides of the two first sliding plates respectively. The mounting bracket also has multiple first sliding plates fixedly connected to its inner side, and these multiple first sliding plates are located on the outer sides of multiple second sliding plates respectively.

[0007] Furthermore, the boiler assembly also includes a third conductive block, which is fixedly installed at the center of the front side of the boiler body. A second conductive block is provided on the front side of the third conductive block, and the second conductive block is fixedly installed inside the front side of the mounting frame. A plurality of second lamps are fixedly connected at the front edge of the top of the mounting frame.

[0008] Furthermore, each of the boiler bodies has a movable component on its rear side. Each movable component includes a support frame, a movable plate, a lead screw, a stepper motor, and two slide bars, and the rear sides of the two second slide plates extend into the interior of the support frame.

[0009] Furthermore, the top of the movable plate is fixedly connected to the support frame, and the movable plate is threadedly connected to the outer side of the lead screw. Both the front and rear ends of the lead screw are movably connected to the mounting frame through bearings. The stepper motor is fixedly installed on the rear side of the mounting frame, and the output shaft end of the stepper motor is fixedly connected to the lead screw. One end of each of the two slide rods passes through the movable plate and is fixedly connected to the mounting frame.

[0010] Furthermore, the movable component also includes a bellows, the front and rear ends of which are fixedly connected to the movable plate and the mounting bracket, respectively.

[0011] Furthermore, the movable component also includes high-temperature resistant bolts, and the support frame is fixed to the boiler body by the high-temperature resistant bolts.

[0012] Furthermore, the movable component also includes a fourth conductive block, which is fixedly installed on the rear side of the support frame. A first conductive block is provided on the rear side of the fourth conductive block, and the first conductive block is fixedly installed on the inner rear side of the mounting frame. A first lamp is fixedly connected to the rear edge of the top end of the mounting frame.

[0013] Furthermore, the mounting bracket has multiple crossbars fixedly connected to its interior rear side, and these crossbars are located on the rear side of multiple sliding sleeves.

[0014] Furthermore, a baffle is movably connected to one side of the mounting bracket via a latch.

[0015] A method for operating a liquefied petroleum gas (LPG) frying boiler, applied to the aforementioned LPG frying boiler which is easy to control temperature, specifically includes the following steps:

[0016] S1. Installation and Positioning: Fix the mounting frame to the working ground, place the boiler body into the mounting frame, so that the two second sliding plates on the front side of the boiler body are respectively slidably fitted onto the outside of the two first sliding plates, and the two second sliding plates on the rear side of the boiler body are respectively slidably fitted onto the inside of the corresponding first sliding plates; push the boiler body along the length of the mounting frame until the third conductive block on the front side of the boiler body contacts and conducts electricity with the second conductive block on the front side of the mounting frame, and at the same time the second light at the top of the mounting frame lights up, completing the positioning of the boiler body in the heating position directly above the liquefied gas stove;

[0017] S2. Fixing and Heating: Secure the support frame to the boiler body with high-temperature resistant bolts, start the liquefied stove and adjust its heating power to maintain the edible oil in the boiler body at the required process temperature.

[0018] S3. Temperature Zone Switching: When it is necessary to switch the frying temperature, start the stepper motor of the corresponding station. The stepper motor drives the lead screw to rotate, driving the moving plate and support frame to move backward along the slide bar. The support frame drives the boiler body to move backward synchronously, so that the boiler body is away from the liquefied stove. When the fourth conductive block on the back of the support frame contacts and conducts electricity with the first conductive block on the back of the mounting frame, the first light on the top of the mounting frame lights up, completing the movement of the boiler body to the non-heating station.

[0019] S4. Boiler scheduling: Move another boiler body horizontally along the length of the mounting frame to the heating position directly above the current liquefied stove, repeat step S2, realize the rapid switching between different boiler bodies in different temperature zones, and complete the segmented temperature-controlled frying operation.

[0020] The technical effects and advantages of this invention are as follows:

[0021] 1. This invention places the boiler body inside the mounting frame and achieves horizontal guidance and radial limitation of the boiler body through the sliding cooperation of the first sliding plate and the second sliding groove plate, and the first sliding groove plate and the second sliding plate. When the third conductive block contacts and conducts electricity with the second conductive block on the inner front side of the mounting frame, the second lamp on the front edge of the top of the mounting frame is energized and lights up, indicating that the boiler body has been accurately moved to the heating position directly above the liquefied stove. The overall installation is convenient and the positioning is accurate, which facilitates the rapid completion of the layout of multiple boiler bodies.

[0022] 2. This invention uses a stepper motor output shaft to drive a lead screw to rotate, thereby moving the support frame and boiler body backward. When the first lamp is powered on, it indicates that the current boiler body has moved to a non-heating position away from the liquefied gas stove, allowing for boiler body repositioning. Subsequently, another boiler body can be horizontally moved along the length of the mounting frame to the heating position directly above the current liquefied gas stove. Overall, temperature control is convenient and scheduling is flexible, effectively improving frying processing efficiency and the stability of finished product quality. Attached Figure Description

[0023] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a perspective view of the invention from the rear view direction;

[0026] Figure 3 This is a schematic diagram of the mounting bracket and the first sliding plate assembly structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the mobile component structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the boiler assembly structure of the present invention;

[0029] Figure 6 This is a perspective view of the boiler assembly of the present invention from a bottom angle;

[0030] Figure 7 This is a flowchart of the present invention.

[0031] In the diagram: 1. Mounting bracket; 2. Liquefied gas stove; 3. Boiler assembly; 4. Baffle; 5. Moving assembly; 6. Crossbar; 7. First lamp; 8. Second lamp; 9. First conductive block; 10. First sliding plate; 11. First sliding plate; 12. Second conductive block; 301. Boiler body; 302. Sliding sleeve; 303. Second sliding plate; 304. Second sliding plate; 305. Third conductive block; 501. Support frame; 502. Moving plate; 503. Lead screw; 504. Stepper motor; 505. Sliding rod; 506. Corrugated pipe; 507. High-temperature resistant bolt; 508. Fourth conductive block. Detailed Implementation

[0032] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Refer to the instruction manual appendix Figure 1-6 This embodiment of a liquefied petroleum gas (LPG) frying boiler for easy temperature control includes a mounting frame 1 and multiple LPG stoves 2. The multiple LPG stoves 2 are all fixedly installed inside the bottom of the mounting frame 1. A boiler assembly 3 is provided on the top of each of the multiple LPG stoves 2. Each of the multiple boiler assemblies 3 includes a boiler body 301, two sliding sleeves 302, two second sliding groove plates 303, and two second sliding plates 304. The opposing sides of the two sliding sleeves 302 are fixedly connected to the boiler body 301. The two second sliding groove plates 303 are fixedly installed on the front side of the boiler body 301, and the two second sliding plates 304 are fixedly installed on the rear side of the boiler body 301.

[0035] Two first slide plates 11 are fixedly connected to the front of the inner side of the mounting bracket 1, and multiple second slide plates 303 are respectively located on the outer side of the two first slide plates 11. Multiple first slide plates 10 are fixedly connected to the inner side of the mounting bracket 1, and multiple first slide plates 10 are respectively located on the outer side of multiple second slide plates 304.

[0036] The boiler assembly 3 also includes a third conductive block 305, which is fixedly installed at the center of the front side of the boiler body 301. A second conductive block 12 is provided on the front side of the third conductive block 305, and the second conductive block 12 is fixedly installed on the front side of the inner side of the mounting frame 1. A plurality of second lamps 8 are fixedly connected at the front edge of the top of the mounting frame 1.

[0037] Refer to the instruction manual appendix Figure 1 , 2 4. Each of the multiple boiler bodies 301 has a movable component 5 on its rear side. Each movable component 5 includes a support frame 501, a movable plate 502, a lead screw 503, a stepper motor 504, and two slide bars 505. The rear sides of the two second slide plates 304 extend into the interior of the support frame 501.

[0038] The top of the movable plate 502 is fixedly connected to the support frame 501, and the movable plate 502 is threadedly connected to the outer side of the lead screw 503. The front and rear ends of the lead screw 503 are movably connected to the mounting frame 1 through bearings. The stepper motor 504 is fixedly installed on the rear side of the mounting frame 1, and the output shaft end of the stepper motor 504 is fixedly connected to the lead screw 503. One end of each of the two slide rods 505 passes through the movable plate 502 and is fixedly connected to the mounting frame 1.

[0039] The movable component 5 also includes a bellows 506, the front and rear ends of which are fixedly connected to the movable plate 502 and the mounting bracket 1, respectively.

[0040] The movable component 5 also includes high-temperature resistant bolts 507, and the support frame 501 is fixed to the boiler body 301 by the high-temperature resistant bolts 507.

[0041] The movable component 5 also includes a fourth conductive block 508, which is fixedly installed on the rear side of the support frame 501. A first conductive block 9 is provided on the rear side of the fourth conductive block 508, and the first conductive block 9 is fixedly installed on the rear side inside the mounting frame 1. A first lamp 7 is fixedly connected at the rear edge of the top end of the mounting frame 1.

[0042] Refer to the instruction manual appendix Figure 1-3 Multiple crossbars 6 are fixedly connected to the rear side of the mounting bracket 1, and the multiple crossbars 6 are located on the rear side of multiple sliding sleeves 302 respectively.

[0043] Refer to the instruction manual appendix Figure 1-3 A baffle 4 is movably connected to one side of the mounting bracket 1 via a snap fastener.

[0044] The usage method of this embodiment is as follows:

[0045] In use, the mounting bracket 1 is fixed to the working ground by expansion bolts. The baffle 4 on one side of the mounting bracket 1 is opened, and the boiler body 301 is placed inside the mounting bracket 1. The two second sliding plates 303 on the front side of the boiler body 301 are respectively movably sleeved on the outside of the two first sliding plates 11, and the two second sliding plates 304 on the rear side of the boiler body 301 are respectively movably sleeved on the inside of the corresponding first sliding plates 10. Through the sliding cooperation between the first sliding plates 11 and the second sliding plates 303, and between the first sliding plates 10 and the second sliding plates 304, the horizontal guidance and radial limitation of the boiler body 301 are achieved, ensuring that the boiler body 301 can only slide smoothly along the length direction of the mounting bracket 1.

[0046] Push the boiler body 301 along the length of the mounting frame 1. The boiler body 301 drives the third conductive block 305 at the front center to move synchronously. When the third conductive block 305 contacts and conducts with the second conductive block 12 on the inner front side of the mounting frame 1, the second lamp 8 on the front edge of the top of the mounting frame 1 is powered on and lights up, indicating that the boiler body 301 has been accurately moved to the heating position directly above the liquefied stove 2, and the rear end of the boiler body 301 is aligned and matched with the front end of the support frame 501 of the moving component 5.

[0047] The support frame 501 is fastened to the boiler body 301 by high-temperature bolts 507, so as to realize the reliable linkage between the boiler body 301 and the moving component 5. The assembly and positioning of the remaining boiler bodies 301 are completed in sequence in the above manner. The overall installation is convenient and the positioning is accurate, which facilitates the rapid completion of the layout of multiple sets of boiler bodies 301.

[0048] Multiple liquefied gas stoves 2 at the bottom of the mounting frame 1 are started in sequence. Each liquefied gas stove 2 is adjusted to a different heating power according to the frying process requirements to form differentiated heating temperature zones such as high temperature and low temperature. The liquefied gas stove 2 heats the boiler body 301 directly above, so that the edible oil in the boiler body 301 is maintained at the corresponding process temperature.

[0049] When it is necessary to fry ingredients in sections with controlled temperature or switch frying temperature zones, the stepper motor 504 of the corresponding workstation is started. The output shaft of the stepper motor 504 drives the lead screw 503 to rotate. Under the guidance and limiting action of the two slide rods 505, the moving plate 502, which is threadedly connected to the lead screw 503, moves smoothly backward along the axis of the slide rod 505 to prevent the moving plate 502 from circumferentially deflecting. During the backward movement of the moving plate 502, the corrugated pipe 506 is squeezed. The corrugated pipe 506 expands and contracts with the moving plate 502, which can effectively block oil fumes, high-temperature oil vapors and debris from entering the area of ​​the lead screw 503 and the slide rod 505.

[0050] The moving plate 502 synchronously drives the support frame 501 and the boiler body 301 to move backward. The two sliding sleeves 302 on the rear side of the boiler body 301 slide synchronously along the crossbar 6 on the rear side inside the mounting frame 1, which further improves the stability and coaxiality of the boiler body 301 during the movement process, avoids the boiler body 301 from shifting or shaking, and enables the boiler body 301 to move away from the corresponding liquefied stove 2, thereby reducing the heat intensity and oil temperature of the boiler body 301.

[0051] When the support frame 501 moves backward, it drives the fourth conductive block 508 on the rear side to move synchronously. When the fourth conductive block 508 contacts and conducts with the first conductive block 9 on the inner rear side of the mounting frame 1, the first lamp 7 on the rear edge of the top of the mounting frame 1 is energized and lights up, indicating that the boiler body 301 has moved to a non-heating position away from the liquefied stove 2 and the boiler body can be repositioned.

[0052] Then, another boiler body 301 can be horizontally moved along the length of the mounting frame 1 to the heating position directly above the current liquefied stove 2, so as to realize the rapid switching between different boiler bodies 301 in different temperature zones. The continuous frying operation with multiple processes such as high temperature shaping, low temperature slow frying, and double frying to enhance crispness can be completed without transferring the ingredients. The overall temperature control is convenient and the scheduling is flexible, which effectively improves the frying processing efficiency and the stability of the finished product quality.

[0053] Example 2

[0054] As attached Figure 7 As shown, a method for operating a liquefied petroleum gas (LPG) frying boiler, applied to the aforementioned LPG frying boiler with easy temperature control, specifically includes the following steps:

[0055] S1. Installation and Positioning: Fix the mounting frame 1 to the working ground, place the boiler body 301 into the mounting frame 1, so that the two second sliding plates 303 on the front side of the boiler body 301 are respectively slidably sleeved on the outside of the two first sliding plates 11, and the two second sliding plates 304 on the rear side of the boiler body 301 are respectively slidably sleeved on the inside of the corresponding first sliding plates 10; push the boiler body 301 along the length of the mounting frame 1 until the third conductive block 305 on the front side of the boiler body 301 contacts and conducts electricity with the second conductive block 12 on the front side of the mounting frame 1, and at the same time, the second lamp 8 at the top of the mounting frame 1 lights up, completing the positioning of the boiler body 301 in the heating position directly above the liquefied stove 2;

[0056] S2. Fixing and heating: The support frame 501 is fastened to the boiler body 301 by high temperature resistant bolts 507. The liquefied stove 2 is started and its heating power is adjusted so that the edible oil in the boiler body 301 is maintained at the required process temperature.

[0057] S3. Temperature Zone Switching: When it is necessary to switch the frying temperature, start the stepper motor 504 of the corresponding station. The stepper motor 504 drives the lead screw 503 to rotate, driving the moving plate 502 and the support frame 501 to move backward along the slide bar 505. The support frame 501 drives the boiler body 301 to move backward synchronously, so that the boiler body 301 is away from the liquefied stove 2. When the fourth conductive block 508 on the rear side of the support frame 501 contacts and conducts electricity with the first conductive block 9 on the rear side of the mounting frame 1, the first lamp 7 at the top of the mounting frame 1 lights up, completing the movement of the boiler body 301 to the non-heating station.

[0058] S4. Boiler scheduling: Move another boiler body 301 horizontally along the length of the mounting frame 1 to the heating position directly above the current liquefied stove 2, repeat step S2, realize the rapid switching of different boiler bodies 301 between different temperature zones, and complete the segmented temperature-controlled frying operation.

[0059] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquefied petroleum gas (LPG) frying boiler with easy temperature control, comprising a mounting frame (1) and multiple LPG stoves (2), wherein the multiple LPG stoves (2) are all fixedly installed at the bottom of the inner part of the mounting frame (1), characterized in that: Each of the multiple liquefied gas stoves (2) is provided with a boiler assembly (3) on its top. Each of the multiple boiler assemblies (3) includes a boiler body (301), two sliding sleeves (302), two second sliding groove plates (303), and two second sliding plates (304). The two sliding sleeves (302) are fixedly connected to the boiler body (301) on opposite sides. The two second sliding groove plates (303) are fixedly installed on the front side of the boiler body (301), and the two second sliding plates (304) are fixedly installed on the rear side of the boiler body (301). The mounting bracket (1) has two first sliding plates (11) fixedly connected to its inner front side, and multiple second sliding plates (303) are located on the outer side of the two first sliding plates (11). The mounting bracket (1) has multiple first sliding plates (10) fixedly connected to its inner side, and multiple first sliding plates (10) are located on the outer side of multiple second sliding plates (304).

2. The liquefied petroleum gas frying boiler with easy temperature control according to claim 1, characterized in that: The boiler assembly (3) also includes a third conductive block (305), which is fixedly installed at the center of the front side of the boiler body (301). A second conductive block (12) is provided on the front side of the third conductive block (305), and the second conductive block (12) is fixedly installed on the front side of the mounting frame (1). A plurality of second lamps (8) are fixedly connected at the front edge of the top of the mounting frame (1).

3. The liquefied petroleum gas frying boiler with easy temperature control according to claim 1, characterized in that: Each of the boiler bodies (301) is provided with a moving assembly (5) on its rear side. Each of the moving assemblies (5) includes a support frame (501), a moving plate (502), a lead screw (503), a stepper motor (504), and two slide bars (505). The rear sides of the two second slide plates (304) extend into the interior of the support frame (501).

4. The liquefied petroleum gas frying boiler with easy temperature control according to claim 3, characterized in that: The top of the movable plate (502) is fixedly connected to the support frame (501), and the movable plate (502) is threadedly connected to the outer side of the lead screw (503). The front and rear ends of the lead screw (503) are movably connected to the mounting frame (1) through bearings. The stepper motor (504) is fixedly installed on the rear side of the mounting frame (1), and the output shaft end of the stepper motor (504) is fixedly connected to the lead screw (503). One end of each of the two slide rods (505) passes through the movable plate (502) and is fixedly connected to the mounting frame (1).

5. The liquefied petroleum gas frying boiler with easy temperature control according to claim 3, characterized in that: The moving component (5) also includes a bellows (506), the front and rear ends of which are fixedly connected to the moving plate (502) and the mounting bracket (1), respectively.

6. The liquefied petroleum gas frying boiler with easy temperature control according to claim 3, characterized in that: The movable component (5) also includes high-temperature resistant bolts (507), and the support frame (501) is fixed to the boiler body (301) by the high-temperature resistant bolts (507).

7. The liquefied petroleum gas frying boiler with easy temperature control according to claim 3, characterized in that: The movable component (5) further includes a fourth conductive block (508), which is fixedly installed on the rear side of the support frame (501). A first conductive block (9) is provided on the rear side of the fourth conductive block (508), and the first conductive block (9) is fixedly installed on the rear side inside the mounting frame (1). A first lamp (7) is fixedly connected at the rear edge of the top end of the mounting frame (1).

8. The liquefied petroleum gas frying boiler with easy temperature control according to claim 1, characterized in that: The mounting bracket (1) has multiple crossbars (6) fixedly connected to its inner rear side, and the multiple crossbars (6) are located on the rear side of multiple sliding sleeves (302).

9. The liquefied petroleum gas frying boiler with easy temperature control according to claim 1, characterized in that: One side of the mounting bracket (1) is movably connected to a baffle (4) via a snap fastener.

10. A method for operating a liquefied petroleum gas (LPG) frying boiler, applied to the LPG frying boiler with easy temperature control as described in any one of claims 1-9, characterized in that: Specifically, the following steps are included: S1. Installation and positioning: Fix the mounting frame (1) to the working ground, place the boiler body (301) inside the mounting frame (1), so that the two second sliding plates (303) on the front side of the boiler body (301) are respectively slidably sleeved on the outside of the two first sliding plates (11), and the two second sliding plates (304) on the rear side of the boiler body (301) are respectively slidably sleeved on the inside of the corresponding first sliding plate (10); push the boiler body (301) along the length direction of the mounting frame (1) until the third conductive block (305) on the front side of the boiler body (301) contacts and conducts with the second conductive block (12) on the front side of the mounting frame (1), and at the same time, the second lamp (8) at the top of the mounting frame (1) lights up, completing the positioning of the boiler body (301) in the heating position directly above the liquefied stove (2); S2, Fixing and Heating: Secure the support frame (501) to the boiler body (301) with high-temperature resistant bolts (507), start the liquefied stove (2) and adjust its heating power to keep the edible oil in the boiler body (301) at the required process temperature; S3, Temperature Zone Switching: When it is necessary to switch the frying temperature, start the stepper motor (504) of the corresponding station. The stepper motor (504) drives the lead screw (503) to rotate, driving the moving plate (502) and the support frame (501) to move backward along the slide bar (505). The support frame (501) drives the boiler body (301) to move backward synchronously, so that the boiler body (301) is away from the liquefied stove (2). When the fourth conductive block (508) on the back side of the support frame (501) contacts and conducts with the first conductive block (9) on the back side of the mounting frame (1), the first lamp (7) at the top of the mounting frame (1) lights up, completing the movement of the boiler body (301) to the non-heating station. S4. Boiler scheduling: Move another boiler body (301) horizontally along the length of the mounting frame (1) to the heating position directly above the current liquefaction stove (2), repeat step S2, realize the rapid switching of different boiler bodies (301) between different temperature zones, and complete the segmented temperature-controlled frying operation.

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