Steam generating device

Abstract

The invention discloses a steam generating device which comprises a steam generating box, a first heating rod and a second heating rod. A boiling cavity and an explosion cavity which are communicated are formed in the steam generation box, and the explosion cavity is located on the upper side of the boiling cavity; the first heating rod is arranged in the boiling cavity; and the second heating rod is arranged in the explosion cavity. According to the steam generation device, the first heating rod is arranged in the boiling cavity, the first heating rod can heat water in the boiling cavity so that the water in the boiling cavity can boil to generate steam, after the steam flows into the explosion cavity from the boiling cavity, the steam can be further vaporized after making contact with the second heating rod in the explosion cavity, and the steam can be heated to generate steam; therefore, the temperature of the steam can be further increased. Furthermore, the steam generating device can generate steam with higher temperature.

Description

Technical Field

[0001] The invention relates to the technical field of food processing devices, in particular to a steam generating device. Background Art

[0002] Steam is widely used in the food processing industry, especially for the processing of pasta such as rice noodle rolls, steamed buns, and dumplings. Steam is mainly generated by heating water.

[0003] In the related art, a steam generating device is used to heat water to generate steam. The steam generating device includes a heating chamber, and an electromagnetic heating coil is wound around the outer wall of the heating chamber. The electromagnetic heating coil is used to heat water in the heating chamber to generate steam.

[0004] However, the steam directly generated by the existing steam generating device by heating water has a relatively low temperature, and the steam with a relatively low temperature will affect the processing efficiency of food. Summary of the invention

[0005] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art. The present invention provides a steam generating device capable of generating steam at a higher temperature.

[0006] According to an embodiment of the present invention, a steam generating device includes a steam generating box, a first heating rod and a second heating rod; a boiling chamber and an explosion chamber that are connected are formed in the steam generating box, and the explosion chamber is located on the upper side of the boiling chamber; the first heating rod is arranged in the boiling chamber, and is used to heat the water in the boiling chamber to generate steam; the second heating rod is arranged in the explosion chamber, and is used to heat the steam in the explosion chamber.

[0007] The steam generating device of the present invention has at least the following beneficial effects: in the steam generating device of the present application, the first heating rod is arranged in the boiling chamber, and the first heating rod can heat the water in the boiling chamber, so that the water in the boiling chamber boils and generates steam, and after the steam flows from the boiling chamber into the explosion chamber, the steam will be further vaporized after contacting the second heating rod in the explosion chamber, so that the temperature of the steam can be further increased. Furthermore, the steam generating device of the present application can generate steam with a higher temperature.

[0008] According to the steam generating device described in the embodiment of the present invention, a curved and extending guide channel is further formed in the steam generating box, and opposite ends of the guide channel are respectively connected to the boiling chamber and the explosion chamber.

[0009] According to the steam generating device described in the embodiment of the present invention, the guide channel includes a first vertical section, a horizontal section and a second vertical section which are connected in sequence, the lower end of the first vertical section is connected to the boiling chamber, and the upper end of the second vertical section is connected to the explosion chamber.

[0010] According to the steam generating device described in the embodiment of the present invention, a total cavity is provided in the steam generating box, and a first blocking structure and a second blocking structure are respectively provided on two horizontally opposite cavity walls of the total cavity, the second blocking structure is arranged on the upper side of the first blocking structure, the part of the total cavity located at the lower side of the first blocking structure constitutes a boiling cavity, the part of the total cavity located at the upper side of the second blocking structure constitutes an explosion cavity, the part of the total cavity located at the horizontal side of the first blocking structure constitutes a first vertical section, the part of the total cavity located between the first blocking structure and the second blocking structure constitutes a horizontal section, and the part of the total cavity located at the horizontal side of the second blocking structure constitutes a second vertical section.

[0011] According to the steam generating device described in the embodiment of the present invention, the cavity wall of the explosion cavity is provided with a steam inlet and a steam outlet, the steam inlet is connected to the boiling cavity, a barrier is provided between the steam inlet and the steam outlet, and the second heating rod is provided between the steam inlet and the barrier.

[0012] According to the steam generating device described in the embodiment of the present invention, a water collecting trough is provided at the bottom of the explosion chamber, and the water collecting trough is located directly below the barrier.

[0013] According to the steam generating device described in the embodiment of the present invention, a reflux hole is provided at the bottom of the water collecting tank, and the reflux hole is connected to the boiling chamber.

[0014] According to the steam generating device described in the embodiment of the present invention, it also includes a water tank and a preheating pipe. The preheating pipe is arranged in contact with the lower cavity wall of the boiling cavity, and the opposite ends of the preheating pipe are respectively connected to the boiling cavity and the water tank.

[0015] According to the steam generating device described in the embodiment of the present invention, a waste drain groove is provided at the bottom of the boiling cavity, a waste drain port for discharging liquid is provided on the groove wall of the waste drain groove, and the preheating pipe is connected to the waste drain groove.

[0016] According to the steam generating device described in the embodiment of the present invention, the steam generating device includes two first heating rods, which are respectively installed on two opposite cavity walls of the boiling cavity in the horizontal direction, and the two first heating rods are distributed along the vertical direction.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 A schematic structural diagram of a steam generating device according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1A schematic structural diagram of the steam generating device from another perspective;

[0021] Figure 3 for Figure 1 A cross-sectional view of the steam generating device shown.

[0022] Reference numerals:

[0023] Steam generating box 100; boiling chamber 101; explosion chamber 102; steam inlet 102a; steam outlet 102b; water collecting tank 102c; guide channel 103; first vertical section 103a; horizontal section 103b; second vertical section 103c; waste discharge tank 104; waste discharge port 104a; front box wall 110; first front plate 111; barrier 111a; second front plate 112; rear box wall 120; first blocking structure 121; left box wall 130; right box wall 140; upper box wall 150; lower box wall 160; second blocking structure 170; first blocking plate 171; reflux hole 171a; second blocking plate 172; third blocking plate 173;

[0024] A first heating rod 200;

[0025] A second heating rod 300;

[0026] Water storage tank 400;

[0027] Preheating pipeline 500; connecting section 510; preheating section 520. DETAILED DESCRIPTION

[0028] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0032] Reference below Figures 1 to 3 The steam generating device of the present application is described in detail.

[0033] refer to Figures 1 to 3 According to an embodiment of the present invention, the steam generating device includes a steam generating box 100, a first heating rod 200 and a second heating rod 300; a boiling chamber 101 and an explosion chamber 102 which are connected are formed in the steam generating box 100, and the explosion chamber 102 is located on the upper side of the boiling chamber 101; the first heating rod 200 is arranged in the boiling chamber 101, and is used to heat the water in the boiling chamber 101 to generate steam; the second heating rod 300 is arranged in the explosion chamber 102, and is used to heat the steam in the explosion chamber 102.

[0034] For example, Figure 3 As shown, the steam generating device includes a steam generating box 100, a first heating rod 200 and a second heating rod 300. A boiling chamber 101 and an explosion chamber 102 are formed in the steam generating box 100. The boiling chamber 101 is located at the lower side of the explosion chamber 102. The upper end of the boiling chamber 101 is connected to the explosion chamber 102. The first heating rod 200 is arranged in the boiling chamber 101 and extends in the left-right direction. The second heating rod 300 is arranged in the explosion chamber 102 and extends in the left-right direction.

[0035] Furthermore, when the steam generating device of the present invention is working, water is placed in the boiling chamber 101, and the water touches the first heating rod 200. The first heating rod 200 heats the water in the boiling chamber 101 to boiling to generate steam. The generated steam goes upward into the explosion chamber 102. After the steam touches the second heating rod 300 in the explosion chamber 102, since the temperature of the second heating rod 300 far exceeds the temperature of the steam itself, the steam vaporizes violently on the surface of the second heating rod 300, thereby realizing secondary vaporization heating of the steam, thereby further increasing the temperature of the steam.

[0036] It can be understood that in the steam generating device of the present invention, a boiling chamber 101 and an explosion chamber 102 are connected to each other in the steam generating box 100, and a first heating rod 200 is arranged in the boiling chamber 101, and a second heating rod 300 is arranged in the explosion chamber 102, so that the steam generated by the first heating rod 200 heating the water in the boiling chamber 101 can be further vaporized under the action of the second heating rod 300 after entering the explosion chamber 102, so as to increase the temperature of the steam output by the steam generating device of the present invention.

[0037] It can be understood that since the exposed second heating rod 300 is directly arranged in the explosion chamber 102, the steam entering the explosion chamber 102 can directly contact the surface of the second heating rod 300, and the larger temperature difference between the second heating rod 300 and the steam can realize further vaporization of the steam, so that the temperature of the steam can be rapidly increased in a short time, thereby improving the efficiency of steam heating.

[0038] It can be understood that in the steam generating device of the present invention, the generation of higher temperature steam can be achieved only through the steam generating box 100, the first heating rod 200 arranged in the boiling chamber 101 of the steam generating box 100, and the second heating rod 300 arranged in the explosion chamber 102 of the steam generating box 100. The overall structure of the steam generating device of the present invention is simple and the manufacturing cost is low.

[0039] In some embodiments of the present invention, reference Figure 3 A curved and extending guide channel 103 is also formed in the steam generating box 100 , and opposite ends of the guide channel 103 are respectively connected to the boiling chamber 101 and the explosion chamber 102 .

[0040] It should be noted that when the steam generating device is working, the first heating rod 200 will heat the water in the boiling chamber 101 to boiling. Accordingly, during the boiling of water in the boiling chamber 101, if the boiling chamber 101 is directly connected to the explosion chamber 102, the boiling water in the boiling chamber 101 is easy to splash into the explosion chamber 102. When the water contacts the second heating rod 300, it will cool down the second heating rod 300, thereby affecting the further vaporization of steam in the explosion chamber 102, and further causing the temperature of the steam output by the steam generating device to fail to meet the standard.

[0041] It can be understood that, in the steam generating device of the present embodiment, the boiling chamber 101 is located below the explosion chamber 102, and the boiling chamber 101 and the explosion chamber 102 are connected by a curved and extended guide channel 103, so that the steam generated in the boiling chamber 101 can smoothly enter the explosion chamber 102 along the guide channel 103, and the water splashed by boiling in the boiling chamber 101 will be blocked by the channel wall of the guide channel 103, and will flow back into the boiling chamber 101 under the action of gravity.

[0042] In a further embodiment of the present invention, the guide channel 103 includes a first vertical section 103a, a horizontal section 103b and a second vertical section 103c which are connected in sequence, the lower end of the first vertical section 103a is connected to the boiling chamber 101, and the upper end of the second vertical section 103c is connected to the explosion chamber 102.

[0043] For example, Figure 3 As shown, the guide channel 103 includes a first vertical section 103a, a horizontal section 103b and a second vertical section 103c which are connected in sequence. The horizontal section 103b is extended in the front-to-back direction. The lower end of the first vertical section 103a is connected to the upper end of the boiling chamber 101, the upper end of the first vertical section 103a is connected to the front end of the horizontal section 103b, the lower end of the second vertical section 103c is connected to the rear end of the horizontal section 103b, and the upper end of the second vertical section 103c is connected to the rear end of the explosion chamber 102.

[0044] It is understandable that the water splashed by the boiling water in the boiling chamber 101 will be blocked by the channel wall of the first vertical section 103a and the channel wall of the horizontal section 103b, and then flow back into the boiling chamber 101 under the action of gravity.

[0045] In some embodiments of the present invention, a total cavity is provided in the steam generating box 100, and a first blocking structure 121 and a second blocking structure 170 are respectively provided on two horizontally opposite cavity walls of the total cavity, the second blocking structure 170 is arranged on the upper side of the first blocking structure 121, the part of the total cavity located at the lower side of the first blocking structure 121 constitutes a boiling cavity 101, the part of the total cavity located at the upper side of the second blocking structure 170 constitutes an explosion cavity 102, the part of the total cavity located at the horizontal side of the first blocking structure 121 constitutes a first vertical section 103a, the part of the total cavity located between the first blocking structure 121 and the second blocking structure 170 constitutes a horizontal section 103b, and the part of the total cavity located at the horizontal side of the second blocking structure 170 constitutes a second vertical section 103c.

[0046] For example, Figures 1 to 3As shown, the steam generating box 100 includes a front box wall 110, a rear box wall 120, a left box wall 130, a right box wall 140, an upper box wall 150 and a lower box wall 160, the front box wall 110, the rear box wall 120, the left box wall 130, the right box wall 140, the upper box wall 150 and the lower box wall 160 together define a total cavity, the middle portion of the rear box wall 120 protrudes forward to form a first blocking structure 121, the second blocking structure 170 includes a first blocking plate 171, a second blocking plate 172 and a third blocking plate 173, the first blocking plate 171 and the third blocking plate 173 are both extended in the vertical direction, the second blocking plate 172 is extended in the horizontal direction, the lower end of the first blocking plate 171 is connected to the middle portion of the front box wall 110, and the upper end of the first blocking plate 171 is connected to the second blocking plate 173. The front ends of the second baffle plates 172 are connected, the lower end of the third baffle plate 173 is connected to the rear end of the second baffle plate 172, a steam inlet 102a of the explosion chamber 102 is formed between the upper end of the third baffle plate 173 and the upper box wall 150, a boiling chamber 101 is formed between the first baffle structure 121 and the lower box wall 160, a first vertical section 103a of the guide channel 103 is formed between the first baffle structure 121 and the front box wall 110, a horizontal section 103b of the guide channel 103 is formed between the second baffle plate 172 and the first baffle structure 121, a second vertical section 103c of the guide channel 103 is formed between the third baffle plate 173 and the rear box wall 120, and the second baffle structure 170, the upper box wall 150 and the front box wall 110 jointly define the explosion chamber 102.

[0047] It can be understood that the front box wall 110, the rear box wall 120, the left box wall 130, the right box wall 140, the upper box wall 150 and the lower box wall 160 of the steam generator box 100 of the present invention are all made of plate materials. The overall structure of the steam generator box 100 of the present invention is simple and the manufacturing cost is low.

[0048] In some embodiments of the present invention, a steam inlet 102a and a steam outlet 102b are provided on the wall of the explosion chamber 102, the steam inlet 102a is connected to the boiling chamber 101, a barrier 111a is provided between the steam inlet 102a and the steam outlet 102b, and the second heating rod 300 is provided between the steam inlet 102a and the barrier 111a.

[0049] For example, Figure 3 As shown, the front wall of the explosion chamber 102 is provided with a steam exhaust port 102b, the rear wall of the explosion chamber 102 is provided with a steam inlet 102a, the blocking member 111a is extended along the rear lower part, and the blocking member 111a is arranged between the steam exhaust port 102b and the steam inlet 102a, the second heating rod 300 is arranged between the blocking member 111a and the steam inlet 102a, and is located directly above the second blocking plate 172.

[0050] Furthermore, steam enters the explosion chamber 102 from the steam inlet 102a, and after being heated by the second heating rod 300, the steam is guided to the second blocking plate 172 and the third blocking plate 173 under the blocking effect of the blocking member 111a, and is guided to the steam inlet 102a under the blocking effect of the second blocking plate 172 and the third blocking plate 173.

[0051] It can be understood that the setting of the barrier 111a enables the steam to form an airflow moving around the second heating rod 300 in the explosion chamber 102, so that the steam can stay in the explosion chamber 102 for a longer time, so that the second heating rod 300 can fully contact the steam and heat the steam, and the steam discharged from the steam outlet 102b can have a higher temperature.

[0052] In some embodiments of the present invention, a water collecting tank 102c is provided at the bottom of the explosion chamber 102, and the water collecting tank 102c is located directly below the blocking member 111a.

[0053] For example, Figure 3 As shown, the front box wall 110 includes a first front plate 111 and a second front plate 112, the first front plate 111 is connected to the upper end of the second front plate 112, the second blocking structure 170 is connected to the upper end of the second front plate 112, the first front plate 111, the second blocking structure 170 and the upper box wall 150 jointly define the explosion chamber 102, the first front plate 111 and the first blocking plate 171 of the second blocking structure 170 jointly define a water collecting trough 102c, and the water collecting trough 102c is located directly below the blocking member 111a.

[0054] It is understandable that during the circulation of steam in the explosion chamber 102 , some steam will be liquefied, and the water generated by the steam liquefaction can be collected in the water collecting tank 102 c to reduce the impact of the water formed by the steam liquefaction on the second heating rod 300 .

[0055] In a further embodiment of the present invention, a reflux hole 171 a is provided at the bottom of the water collecting tank 102 c , and the reflux hole 171 a is communicated with the boiling chamber 101 .

[0056] For example, Figure 3 As shown, a reflux hole 171 a is provided on the first blocking plate 171 of the second blocking structure 170 , and the water collecting tank 102 c is connected with the guide channel 103 through the reflux hole 171 a .

[0057] Furthermore, water liquefied by steam in the explosion chamber 102 can be collected in the water collecting tank 102 c and flow back into the boiling chamber 101 through the reflux hole 171 a and the guide channel 103 .

[0058] In some embodiments of the present invention, the steam generating device further includes a water tank 400 and a preheating pipe 500. The preheating pipe 500 is arranged in contact with the lower cavity wall of the boiling cavity 101. The opposite ends of the preheating pipe 500 are respectively connected to the boiling cavity 101 and the water tank 400.

[0059] For example, Figures 1 to 3 As shown, the steam generating device also includes a water tank 400 and a preheating pipe 500. The water tank 400 is arranged on the front side of the steam generating box 100. The preheating pipe 500 includes a connecting section 510 and a preheating section 520. The preheating section 520 extends in the left-right direction. The preheating section 520 is located at the lower side of the boiling chamber 101 and is arranged in contact with the lower chamber wall of the boiling chamber 101. The connecting section 510 extends in the front-to-back direction. The left end of the preheating section 520 is connected to the rear end of the connecting section 510, the right end of the preheating section 520 is connected to the boiling chamber 101, and the front end of the connecting section 510 is connected to the water tank 400.

[0060] It can be understood that the cold water in the water tank 400 can absorb the heat in the boiling chamber 101 to achieve the preheating effect during the process of flowing into the boiling chamber 101 through the preheating section 520, thereby avoiding the problem of the water in the boiling chamber 101 stopping boiling due to the large temperature difference between the water in the boiling chamber 101 and the water in the preheating section 520.

[0061] In some embodiments of the present invention, a waste drain groove 104 is provided at the bottom of the boiling chamber 101 , a waste outlet 104 a for discharging liquid is provided on the groove wall of the waste drain groove 104 , and the preheating pipe 500 is connected to the waste drain groove 104 .

[0062] For example, Figure 2 and Figure 3 As shown, a waste drain trough 104 is provided at the bottom of the boiling chamber 101 . The waste drain trough 104 is located at the right end of the bottom of the boiling chamber 101 . The right end of the preheating section 520 of the preheating pipe 500 is connected to the waste drain trough 104 .

[0063] It is understandable that after the steam generating device of the present invention has finished working, the remaining water in the boiling chamber 101 can be collected in the waste drain 104 and discharged through the waste drain port 104a.

[0064] It can be understood that since the right end of the preheating section 520 is connected to the waste drain trough 104, the left end of the preheating section 520 is connected to the connecting section 510, and the waste drain trough 104 is arranged at the right end of the bottom of the boiling chamber 101, the length of the preheating section 520 can be set longer, so that the water in the preheating section 520 can be fully heated before flowing into the boiling chamber 101.

[0065] In some embodiments of the present invention, the steam generating device includes two first heating rods 200, which are respectively installed on two opposite chamber walls of the boiling chamber 101 in the horizontal direction, and the two first heating rods 200 are distributed in the vertical direction.

[0066] For example, Figure 2 and Figure 3 As shown, the steam generating device includes two first heating rods 200 , which are spaced apart in the vertical direction. The first heating rod 200 located at the lower side is installed on the left box wall 130 , and the first heating rod 200 located at the upper side is installed on the right box wall 140 .

[0067] It can be understood that since the two first heating rods 200 are distributed in the vertical direction and the two first heating rods 200 are respectively installed on two opposite cavity walls of the boiling chamber 101 in the horizontal direction, the interval between the two first heating rods 200 in the vertical direction can be set smaller, so that the two first heating rods 200 can concentrate heat to heat the water in the boiling chamber 101.

[0068] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A steam generating device, characterized in that: include: A steam generating box, wherein a boiling chamber and an explosion chamber are formed in the steam generating box, and the explosion chamber is located on the upper side of the boiling chamber; A first heating rod is disposed in the boiling chamber and is used to heat water in the boiling chamber to generate steam; The second heating rod is arranged in the explosion chamber and is used for heating the steam in the explosion chamber.

2. A steam generating device according to claim 1, characterized in that: A curved and extending guide channel is also formed in the steam generating box, and opposite ends of the guide channel are respectively connected with the boiling chamber and the explosion chamber.

3. A steam generating device according to claim 2, characterized in that: The guide channel includes a first vertical section, a horizontal section, and a second vertical section which are connected in sequence, the lower end of the first vertical section is connected to the boiling chamber, and the upper end of the second vertical section is connected to the explosion chamber.

4. A steam generating device according to claim 3, characterized in that: A total cavity is provided in the steam generating box, and a first blocking structure and a second blocking structure are respectively provided on two horizontally opposite cavity walls of the total cavity, the second blocking structure is provided on the upper side of the first blocking structure, the portion of the total cavity located at the lower side of the first blocking structure constitutes the boiling cavity, the portion of the total cavity located at the upper side of the second blocking structure constitutes the explosion cavity, the portion of the total cavity located at the horizontal side of the first blocking structure constitutes the first vertical section, the portion of the total cavity located between the first blocking structure and the second blocking structure constitutes the horizontal section, and the portion of the total cavity located at the horizontal side of the second blocking structure constitutes the second vertical section.

5. A steam generating device according to claim 1, characterized in that: The cavity wall of the explosion cavity is provided with a steam inlet and a steam outlet, the steam inlet is communicated with the boiling cavity, a barrier is provided between the steam inlet and the steam outlet, and the second heating rod is provided between the steam inlet and the barrier.

6. A steam generating device according to claim 5, characterized in that: The bottom of the explosion chamber is provided with a water collecting trough, and the water collecting trough is located directly below the blocking member.

7. A steam generating device according to claim 6, characterized in that: A reflux hole is provided at the bottom of the water collecting tank, and the reflux hole is communicated with the boiling chamber.

8. A steam generating device according to claim 1, characterized in that: It also includes a water storage tank and a preheating pipe. The preheating pipe is arranged in contact with the lower cavity wall of the boiling cavity. The opposite ends of the preheating pipe are respectively connected to the boiling cavity and the water storage tank.

9. A steam generating device according to claim 8, characterized in that: A waste discharge groove is provided at the bottom of the boiling cavity, a waste discharge port for discharging liquid is provided on the groove wall of the waste discharge groove, and the preheating pipeline is connected to the waste discharge groove.

10. A steam generating device according to claim 1, characterized in that: The steam generating device comprises two first heating rods, the two first heating rods are respectively installed on two opposite cavity walls of the boiling cavity in the horizontal direction, and the two first heating rods are distributed in the vertical direction.

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