Steam system

Abstract

The utility model provides a steam system which comprises a steam generator and an inner container, and the steam generator is used for generating steam; the steam pipe fitting is arranged on the inner container in a penetrating mode, and one end of the steam pipe fitting is connected with the steam generator; the flow blocking piece is arranged at the other end of the steam pipe fitting, at least part of the flow blocking piece and a steam outlet of the steam pipe fitting are opposite and arranged in a spaced mode, a flow blocking channel is defined by the flow blocking piece and at least part of the steam pipe fitting, and the flow blocking channel is communicated with a cavity of the inner container. And steam in the steam pipe fitting passes through the flow blocking channel and then enters the cavity of the inner container. By means of the technical scheme, the technical problem that in the prior art, noise of a steam system is large can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam system technical field, specifically, relate to a steam system. BACKGROUND

[0002] At present, most of the embedded steaming oven in the market adopts the boiling type steam generator, but the boiling type steam generator has obvious disadvantages, such as: large power, high energy consumption, and many condensate water in the inner container after steaming, etc. The instant steam generator can solve the above problems.

[0003] However, the instant steam generator also has obvious shortcomings, that is, the high temperature and high pressure steam generated by the steam generator when working. In this way, the high temperature and high pressure steam will cause impact or disturbance to the surrounding air during the injection process, thereby generating relatively large jet noise, which will affect the user's use experience to some extent. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a steam system to solve the technical problem of large noise of the steam system in the prior art.

[0005] In order to achieve the above purpose, the utility model provides a steam system, which comprises:

[0006] Steam generator and inner container, the steam generator is used for generating steam;

[0007] Steam pipe fittings, which are provided on the inner container, one end of the steam pipe fittings is connected with the steam generator;

[0008] The flow resistance piece is arranged at the other end of the steam pipe fittings, at least part of the flow resistance piece is arranged opposite and spaced apart from the steam outlet of the steam pipe fittings, a flow resistance channel is formed between the flow resistance piece and at least part of the steam pipe fittings, the flow resistance channel is communicated with the cavity of the inner container, so that the steam in the steam pipe fittings enters the cavity of the inner container through the flow resistance channel.

[0009] Further, the flow resistance piece comprises an annular shell, the annular shell is sleeved on the other end of the steam pipe fittings, one part of the annular shell is connected with the steam pipe fittings, and the other part of the annular shell is spaced apart and arranged opposite to the steam outlet to form the flow resistance channel.

[0010] Further, the flow resistance piece further comprises an end plate, the end plate is connected with the annular shell and located at the end of the annular shell, the end plate is arranged opposite to one end of the flow resistance channel to block one end of the flow resistance channel.

[0011] Further, the annular shell has a first port and a second port arranged oppositely, the first port is sleeved on the other end of the steam pipe, and the second port is located at the end of the other end of the steam pipe;

[0012] The end plate is arranged at the first port, and the end plate is an annular plate structure, an inner ring of the end plate is matched with an outer shape of the steam pipe to block a gap between the annular shell and the steam pipe, so that the steam in the flow resistance channel flows out through the second port; or,

[0013] The end plate is arranged at the second port and blocks the second port, so that the steam in the flow resistance channel flows out through the first port.

[0014] Further, the first port is located on one side of the second port close to an inner tank wall of the inner tank; and / or,

[0015] The steam pipe comprises a steam inlet pipe and a steam joint connected to each other, the steam joint is arranged on the inner tank, the steam inlet pipe is detachably connected to the steam joint, the steam inlet pipe is arranged outside the inner tank, one end of the steam inlet pipe away from the steam joint forms one end of the steam pipe, and one end of the steam joint away from the steam inlet pipe forms the other end of the steam pipe.

[0016] Further, a part of the annular shell is provided with a spoiler, and the spoiler is arranged on one side of the annular shell close to the steam outlet.

[0017] Further, the steam pipe comprises a steam joint, the steam joint is arranged on the inner tank, the steam joint arranged in the inner tank is provided with a first external thread and a steam outlet, the steam outlet and the first external thread are arranged along the annular direction of the part of the steam joint arranged in the inner tank, the flow resistance member is provided with a first internal thread matched with the first external thread, and the flow resistance member is connected to the part of the steam joint arranged in the inner tank through the threads.

[0018] Further, the part of the steam joint arranged in the inner tank comprises an avoiding surface and a matching surface connected to each other along the annular outer edge of the steam joint, the avoiding surface is arranged opposite to and spaced apart from at least part of the flow resistance member, the steam outlet is arranged on the avoiding surface, and the first external thread is arranged on the matching surface.

[0019] Two of the avoiding surfaces are spaced apart along the annular outer edge of the steam joint, two of the matching surfaces are arranged between the two avoiding surfaces, each of the avoiding surfaces is provided with the steam outlet, and each of the matching surfaces is provided with the first external thread.

[0020] Two of the avoiding surfaces are spaced apart along the annular outer edge of the steam joint, two of the matching surfaces are arranged between the two avoiding surfaces, each of the avoiding surfaces is provided with the steam outlet, and each of the matching surfaces is provided with the first external thread.

[0021] Further, the steam system further comprises:

[0022] A sealing member is arranged between the steam pipe and the inner container.

[0023] Further, the steam pipe is provided with a limiting protrusion, and the steam system further comprises:

[0024] An adjusting member is adjustably arranged on the steam pipe in the extending direction of the steam pipe and is spaced apart from the limiting protrusion, the adjusting member protrudes from the outer edge of the steam pipe, the sealing member is arranged between the limiting protrusion and the adjusting member, and two ends of the sealing member are used for contacting the limiting protrusion and the adjusting member respectively.

[0025] By arranging the flow resistance member, the steam in the steam pipe flows from one end of the steam pipe to the other end of the steam pipe, and when the steam flows out of the other end of the steam pipe, it enters the flow resistance channel. Since at least part of the flow resistance member is arranged opposite and spaced apart from the steam outlet of the steam pipe, the steam flowing out of the other end of the steam pipe can be blocked and noise-reduced before entering the cavity of the inner container. In addition, by using the corresponding control method, the steam generator can have some initial water before starting to work, so that the intensity of steam generation of the steam generator is much smaller, thereby reducing the situation that the steam generator generates loud noise due to intense steam generation, and reducing the noise of the steam system during use. BRIEF DESCRIPTION OF DRAWINGS

[0026] The drawings constituting a part of the specification illustrate the present application and are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0027] Figure 1A structure schematic view of one perspective of the steam system according to the embodiment of the utility model is shown;

[0028] Figure 2 A structure schematic view of another perspective of the steam system according to the embodiment of the utility model is shown;

[0029] Figure 3 A partial enlarged schematic view of the steam system according to the embodiment of the utility model is shown;

[0030] Figure 4 A partial sectional view of the steam system according to the embodiment of the utility model is shown;

[0031] Figure 5 An exploded view of the steam joint and the flow resistance piece according to the embodiment of the utility model is shown;

[0032] Figure 6 A flow chart of the control method according to the embodiment of the utility model is shown.

[0033] Among the above drawings, the following reference signs are included:

[0034] 1, water purification tank; 2, first water inlet pipe; 3, electromagnetic valve; 4, water outlet pipe; 5, top heating pipe; 6, main plate; 7, back fan;

[0035] 8, steam generator; 9, temperature sensing bag; 10, water inlet pump; 11, heating piece; 12, second water inlet pipe; 13, temperature sensing needle;

[0036] 14, steam inlet pipe;

[0037] 15, steam joint; 151, avoiding surface; 152, matching surface; 153, limiting protrusion;

[0038] 16, adjusting piece; 17, sealing piece; 18, inner container; 19, baffle;

[0039] 20, flow resistance piece; 201, annular shell; 2011, first port; 2012, turbulence protrusion; 202, end plate;

[0040] 21, steam;

[0041] 22, cavity;

[0042] 23, steam outlet;

[0043] 24, temperature sensor. DETAILED DESCRIPTION

[0044] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0045] As shown in Figures 1 to 5 An embodiment of the present application provides a steam system, which comprises a steam generator 8, an inner container 18, a steam pipe and a flow resistance piece 20. The steam generator 8 is used for generating steam 21. The steam pipe is arranged on the inner container 18, and one end of the steam pipe is connected with the steam generator 8. The flow resistance piece 20 is arranged at the other end of the steam pipe. At least part of the flow resistance piece 20 is arranged opposite and spaced apart from the steam outlet 23 of the steam pipe. A flow resistance channel is formed between the flow resistance piece 20 and at least part of the steam pipe. The flow resistance channel is in communication with the cavity 22 of the inner container 18, so that the steam 21 in the steam pipe enters the cavity 22 of the inner container 18 through the flow resistance channel.

[0046] The steam system provided by the embodiment can effectively reduce the noise of the steam 21 entering the inner container 18. Therefore, the steam system provided by the embodiment can solve the technical problem of large noise of the steam system in the prior art.

[0047] Specifically, the steam generator 8 in the embodiment can be an instant steam generator 8, the steam system can be a steam oven or a steam oven, and the cavity 22 of the inner container 18 can be used for placing food to be steamed. The steam 21 generated by the steam generator 8 is mainly high-temperature and high-pressure steam 21.

[0048] In the embodiment, the flow resistance piece 20 comprises a ring-shaped shell 201, which is sleeved on the other end of the steam pipe. One part of the ring-shaped shell 201 is connected with the steam pipe, and the other part of the ring-shaped shell 201 is arranged opposite and spaced apart from the steam outlet 23 to form the flow resistance channel. In this way, the arrangement of the ring-shaped shell 201 can effectively reduce the noise of the steam 21 entering the inner container 18.

[0049] In the embodiment, the flow blocking member 20 further comprises an end plate 202 connected with the annular shell 201 and located at the end of the annular shell 201, and the end plate 202 is arranged opposite to one end of the flow blocking channel to block the one end of the flow blocking channel. With such an arrangement, the steam 21 can be further blocked and noise-reduced through the end plate 202, so as to reduce the violent impact or disturbance of the steam 21 when flowing out to the cavity 22 of the inner container 18, and improve the noise-reducing effect on the steam 21.

[0050] Specifically, the annular shell 201 in the embodiment has a first port 2011 and a second port arranged opposite to each other, the first port 2011 is sleeved on the other end of the steam pipe, and the second port is located at the end of the other end of the steam pipe.

[0051] Specifically, the end plate 202 is arranged at the first port 2011, and the end plate 202 is an annular plate structure, the inner circle of the end plate 202 is matched with the outer shape of the steam pipe to block the gap between the annular shell 201 and the steam pipe, so that the steam 21 in the flow blocking channel flows out through the second port. In this way, the steam 21 can be better noise-reduced, and the flow blocking effect on the steam 21 can be improved.

[0052] Alternatively, the end plate 202 is arranged at the second port and blocks the second port, so that the steam 21 in the flow blocking channel flows out through the first port 2011. In this way, the steam 21 can be effectively reduced and noise-reduced.

[0053] Specifically, the first port 2011 is located on one side of the second port close to the inner container 18 wall of the inner container 18. Specifically, such an arrangement in combination with the arrangement of the end plate 202 at the second port makes the steam 21 flow towards one side of the inner container 18 wall of the inner container 18 after flowing out from the first port 2011, and then disperses into the cavity 22 of the inner container 18. In this way, part of the steam 21 will first contact the inner container 18 wall, and the inner container 18 wall can better reduce the noise of the steam 21 to some extent, improve the flow blocking effect on the steam 21, and reduce the intensity of the steam 21.

[0054] Specifically, the steam pipe comprises a steam inlet pipe 14 and a steam joint 15 connected with each other, the steam joint 15 is arranged on the inner container 18, the steam inlet pipe 14 is detachably connected with the steam joint 15, the steam inlet pipe 14 is arranged outside the inner container 18, one end of the steam inlet pipe 14 away from the steam joint 15 forms one end of the steam pipe, and one end of the steam joint 15 away from the steam inlet pipe 14 forms the other end of the steam pipe. In this way, the steam inlet pipe 14 and the steam joint 15 can be easily disassembled for maintenance and repair.

[0055] In the embodiment, the other part of the annular shell 201 is provided with a spoiler 2012 protruding from the side of the annular shell 201 close to the steam outlet 23. In this way, the flow resistance effect on the steam 21 is improved, and the noise reduction is better.

[0056] In the embodiment, the steam pipe includes a steam joint 15, the steam joint 15 is provided on the inner container 18, the part of the steam joint 15 in the inner container 18 is provided with a first external thread and a steam outlet 23, the steam outlet 23 and the first external thread are spaced apart along the circumferential direction of the part of the steam joint 15 in the inner container 18, the flow resistance piece 20 is provided with a first internal thread matched with the first external thread, and the flow resistance piece 20 is connected with the part of the steam joint 15 in the inner container 18 through the thread connection. In this way, the connection between the flow resistance piece 20 and the part of the steam joint 15 in the inner container 18 is ensured, and the part of the first internal thread not matched with the flow resistance piece 20 can effectively form a spoiler 2012, so as to ensure the flow resistance effect through the spoiler 2012 and better reduce the noise.

[0057] Specifically, the part of the steam joint 15 in the inner container 18 includes an avoiding surface 151 and a matching surface 152 connected with each other along the annular outer edge of the steam joint 15, the avoiding surface 151 is arranged opposite and spaced apart from at least part of the flow resistance piece 20, the steam outlet 23 is arranged on the avoiding surface 151, and the first external thread is arranged on the matching surface 152.

[0058] Among them, the avoiding surface 151 is at least two, the at least two avoiding surfaces 151 are arranged spaced apart along the annular outer edge of the steam joint 15, the matching surface 152 is at least two, one matching surface 152 is arranged between the adjacent two avoiding surfaces 151, the steam outlet 23 is arranged on each avoiding surface 151, and the first external thread is arranged on each matching surface 152. In this way, the connection stability can be ensured, the steam 21 can be effectively discharged, and the noise reduction of the steam 21 is increased.

[0059] Specifically, the avoiding surface 151 is two, the two avoiding surfaces 151 are arranged spaced apart along the annular outer edge of the steam joint 15, the matching surface 152 is two, one matching surface 152 is arranged between the two avoiding surfaces 151, the steam outlet 23 is arranged on each avoiding surface 151, and the first external thread is arranged on each matching surface 152, and the two avoiding surfaces 151 and the two matching surfaces 152 are connected to form a waist-shaped outer edge. In this way, the connection stability can be ensured, the steam 21 can be effectively discharged, and the noise reduction of the steam 21 is increased. In addition, the shape of the steam joint 15 is optimized.

[0060] In the embodiment, the steam system further comprises a sealing member 17 arranged between the steam pipe and the inner container 18 to ensure the sealing effect of the steam pipe passing through the inner container 18.

[0061] Specifically, the sealing member 17 can be a sealing gasket.

[0062] Specifically, a limiting protrusion 153 is arranged on the steam pipe, and the steam system further comprises an adjusting member 16 arranged on the steam pipe and spaced apart from the limiting protrusion 153 in the extending direction of the steam pipe, the adjusting member 16 protrudes from the outer edge of the steam pipe, the sealing member 17 is arranged between the limiting protrusion 153 and the adjusting member 16, and the two ends of the sealing member 17 are used to contact the limiting protrusion 153 and the adjusting member 16, respectively. In this way, the setting stability of the sealing member 17 can be ensured, and the sealing effect of the sealing member 17 can be ensured.

[0063] Specifically, the adjusting member 16 is an adjusting nut provided with a second internal thread, and the steam pipe is provided with a second external thread matched with the second internal thread, and the position of the adjusting member 16 on the steam pipe can be adjusted through the cooperation of the second internal thread and the second external thread.

[0064] Specifically, the side of the inner container 18 close to the cavity 22 is provided with a baffle 19, the baffle 19 is provided with a limiting hole, the steam pipe passes through the limiting hole, the limiting protrusion 153 is located on the side of the limiting hole away from the cavity 22, and the limiting protrusion 153 protrudes from the limiting hole to limit the insertion position of the steam pipe, so that the steam pipe is prevented from being fully inserted into the cavity 22 of the inner container 18, and the limiting and operation of the steam pipe are facilitated. Specifically, the steam joint 15 of the steam pipe passes through the limiting hole, and the limiting protrusion 153 is arranged at the outer edge of the steam joint 15 and protrudes from the outer edge of the steam joint 15.

[0065] When the high-temperature and high-pressure steam 21 generated by the instant steam generator 8 passes through the steam inlet pipe 14, the steam joint 15, and enters the cavity 22 of the inner container 18, a pressure-reducing nut (flow resistance member 20) is arranged at the steam outlet end of the steam joint 15, and the high-temperature and high-pressure steam 21 needs to pass through the flat gap (steam outlet 23) of the steam joint 15 and the gap between the steam joint 15 and the pressure-reducing nut. Since the high-temperature and high-pressure steam 21 is blocked by the pressure-reducing nut, the impact of the high-temperature and high-pressure steam 21 on the surrounding air when entering the cavity 22 of the inner container 18 is reduced, and the generation of noise during steaming is reduced.

[0066] The steam system in the embodiment further comprises a water purification tank 1, a first water inlet pipe 2, a water outlet pipe 4, a top heating pipe 5, a main plate 6, a temperature sensing bag 9, a second water inlet pipe 12, and a temperature sensing needle 13.

[0067] AsFigure 6 The control method corresponding to the steam system is used for controlling the steam system. The control method comprises: adding initial water into a steam generator 8 of the steam system; controlling the steam generator 8 to enter a heating circulation process, controlling the working condition of the steam generator 8 and / or the water adding condition of the steam generator 8 according to the temperature of the steam generator 8 in the heating circulation process, and enabling steam 21 generated by the steam generator 8 to enter a cavity 22 of an inner container 18 of the steam system.

[0068] By using the control method provided in the embodiment, part of the initial water can be ensured in the steam generator 8 before starting to work, so that the intensity of the steam 21 generated by the steam generator 8 is greatly reduced, thereby reducing the condition that the steam generator 8 generates loud noise due to the intense steam 21, and reducing the noise of the steam system in the use process. Therefore, by using the technical solution provided in the embodiment, the technical problem of the loud noise of the steam system using the instant heating type in the prior art can be solved.

[0069] In the embodiment, the control of the working condition of the steam generator 8 and / or the water adding condition of the steam generator 8 according to the temperature of the steam generator 8 in the heating circulation process comprises: starting the steam generator 8; obtaining the temperature of the steam generator 8; when the temperature of the steam generator 8 is greater than or equal to a first preset temperature, controlling the steam generator 8 to stop working, and adding supplemental water into the steam generator 8; and when the temperature of the steam generator 8 is less than the first preset temperature, controlling the steam generator 8 to continue working. By using such a method, the steam generator 8 can always store water, thereby effectively reducing the intensity of the steam 21 generated in the steam generator 8, and relatively slowly generating steam 21, thereby reducing the noise.

[0070] Specifically, the adding of the initial water into the steam generator 8 of the steam system comprises: enabling the water inflow of the initial water in the steam generator 8 to be a first water inflow; the adding of the supplemental water into the steam generator 8 comprises: enabling the water inflow of the supplemental water in the steam generator 8 to be a second water inflow; and the second water inflow is greater than the first water inflow. In this way, the condition that the water in the steam generator 8 is exhausted can be avoided, so as to better adapt to the condition that the temperature of the steam generator 8 is increased after starting to work, thereby causing more water consumption, and effectively reducing the intensity of the steam 21 generated in the steam generator 8.

[0071] Specifically, the initial water is added into the steam generator 8 of the steam system, including: controlling water feeding into the steam generator 8 for a first preset time length; and adding supplemental water into the steam generator 8, including: controlling water feeding into the steam generator 8 for a second preset time length; wherein the first preset time length is less than the second preset time length. In this way, the situation that the water in the steam generator 8 is exhausted can be avoided, so as to better adapt to the situation that the temperature of the steam generator 8 rises after starting and thus more water is consumed, and the generation intensity of the steam 21 in the steam generator 8 is effectively reduced.

[0072] Specifically, the first preset temperature is between 120℃ and 200℃, so that the first preset temperature is within the reasonable range, the situation that the water in the steam generator 8 is exhausted due to the first preset temperature being too high is avoided, and the situation that the steam 21 cannot be effectively generated due to the first preset temperature being too low is also avoided.

[0073] The first preset time length is between 1s and 3s, so as to ensure sufficient water feeding.

[0074] The second preset time length is between 2s and 4s, so as to ensure sufficient water feeding.

[0075] In the embodiment, the control method further includes: acquiring the temperature of the cavity 22 of the inner container 18; and controlling the working condition of the heating element 11 for heating the cavity 22 of the inner container 18 according to the temperature of the cavity 22 of the inner container 18. In this way, the working condition of the heating element 11 can be more reasonably controlled, so as to better adjust and control the temperature of the inner container 18.

[0076] Specifically, the heating element 11 can be a bottom heating tube.

[0077] Specifically, the working condition of the heating element 11 for heating the cavity 22 of the inner container 18 according to the temperature of the cavity 22 of the inner container 18 includes: when the temperature of the cavity 22 of the inner container 18 is less than or equal to a second preset temperature, controlling the heating element 11 to work at a first operating frequency; and when the temperature of the cavity 22 of the inner container 18 is greater than the second preset temperature, controlling the heating element 11 to work at a second operating frequency. In this way, the temperature of the cavity 22 of the inner container 18 can be effectively maintained to meet the operation requirements, and excessive energy waste can be avoided, so as to effectively heat the object in the cavity 22 of the inner container 18.

[0078] Specifically, the heating element 11 is controlled to work at the first operating frequency, including: controlling the heating element 11 to work continuously, so as to quickly raise the temperature of the cavity 22 of the inner container 18.

[0079] Specifically, the heat-generating element 11 is controlled to work at the second operating frequency, including: the heat-generating element 11 is controlled to work intermittently to avoid the cavity 22 of the inner container 18 from rising too much and exceeding the use requirement, thereby effectively saving energy.

[0080] In the embodiment, the heat-generating element 11 is controlled to work at the second operating frequency, including: the heat-generating element 11 is controlled to work intermittently at a duty cycle of 12:48. At this time, the steam system enters the temperature maintaining stage, and the bottom heat-generating element 11 works at a duty cycle of 12:48 to ensure that the temperature in the cavity 22 of the inner container 18 meets the temperature deviation requirement specified by the set temperature standard, and the bottom condensate water of the inner container 18 and the food cooking effect are balanced.

[0081] As shown in Figure 6 the control method, the specific control process is as follows: when the user sets the cooking mode, time, and temperature, and clicks to start, the electromagnetic valve 3 and the back fan 7 are opened, the steam oven enters the temperature rising stage, the water pump 10 pumps water to the instant steam generator 8, the first water pumping time of the water pump 10 is 2S, then the instant steam generator 8 starts to work, and the temperature sensing needle 13 detects that the temperature of the instant steam generator 8 reaches 160℃ and stops working. The water pump 10 pumps water again, and after the first cycle, the temperature of the instant steam generator 8 is relatively high, which consumes a certain amount of water, and the water pumping time is 3S, which is the cycle. At the same time, the bottom heating pipe starts to work in the full period to quickly raise the temperature in the cavity 22 of the inner container 18, and evaporate the condensate water at the bottom of the cavity 22 of the inner container 18 to reduce the condensate water at the bottom of the cavity 22 of the inner container 18 during the steaming process. Specifically, when the temperature sensor 24 detects that the temperature in the cavity 22 of the inner container 18 reaches the set temperature (specifically, the set temperature can be a temperature less than or equal to the maximum temperature, which can be T-5℃, where T is the maximum temperature), the bottom heating pipe stops working in the full period, the steam oven enters the temperature maintaining stage, the bottom heating pipe works at a duty cycle of 12:48, and the working procedures of the water pump 10 and the instant steam generator 8 are consistent with those in the temperature rising stage. When the user-set working time is reached, the electromagnetic valve 3, the back fan 7, the water pump 10, and the instant steam generator 8 stop working, and the cooking is completed.

[0082] Specifically, the steam oven enters the temperature maintaining stage, and the bottom heating pipe works at a duty cycle of 12:48 to ensure that the temperature in the cavity 22 of the inner container 18 meets the temperature deviation requirement specified by the set temperature standard, and the bottom condensate water of the inner container 18 and the food cooking effect are balanced.

[0083] Specifically, when the steam oven of the embodiment is used for steaming, a certain amount of water is first added to the instant steam generator 8, and then the instant steam generator 8 is operated. Compared with adding water to the instant steam generator 8 first, the instant water vaporization is less intense, and the noise of the instant steam generator 8 during operation is reduced.

[0084] Specifically, the bottom heating tube can quickly raise the temperature in the cavity 22 of the inner container 18 during operation, and can also evaporate the condensed water at the bottom of the cavity 22 of the inner container 18, so as to reduce the condensed water at the bottom of the cavity 22 of the inner container 18 during steaming.

[0085] Specifically, when the temperature sensor 24 detects that the temperature in the cavity 22 of the inner container 18 reaches a set temperature (specifically, the set temperature can be a temperature less than or equal to the maximum temperature, which can be T-5℃, wherein T is the maximum temperature), the bottom heating tube stops working in the full period, the steam oven enters the temperature maintaining stage, the bottom heating tube 12:48 duty cycle works, and the water inlet pump 10 and the instant steam generator 8 work in the same way as in the temperature raising stage; when the user sets the working time, the electromagnetic valve 3, the back fan 7, the water inlet pump 10 and the instant steam generator 8 stop working, and the cooking is completed.

[0086] In the steam oven, a certain amount of water is first added to the instant steam generator 8, and then the instant steam generator 8 is operated. Compared with adding water to the instant steam generator 8 first, the instant water vaporization is less intense, and the noise of the instant steam generator 8 during operation is reduced.

[0087] Another embodiment of the utility model provides a kind of steam system, comprising: water adding module is set to be used to add initial water to the steam generator 8 of steam system;Heating module is set to be used to control steam generator 8 enters heating cycle process, according to the temperature of steam generator 8 in heating cycle process to the working condition of steam generator 8 and / or the water adding condition of steam generator 8 is controlled, and make the steam 21 generated by steam generator 8 heating enter to the cavity 22 of the inner container 18 of steam system.

[0088] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects: mainly solve the problem of excessive noise in the instant heating type steam generator steaming process from two aspects of program and physical structure. Program: first, the time (water height) of water pump water adding is controlled by logic, and then instant heating type steam generator is used for heating, so that water relatively slowly gasifies to produce steam, compared with the previous instant heating type steam generator heating to a certain temperature, then water is added to the instant heating type steam generator, the intensity of steam generation is much smaller. Physical structure: before steam enters the inner container cavity, the pressure reducing nut is arranged, so that the high temperature and high pressure steam flows between the thread gap between the steam outlet joint flat gap (corresponding to the steam outlet) and the pressure reducing nut (corresponding to the flow resistance piece), so as to reduce the impact or disturbance of steam entering the inner container cavity on the surrounding air, reduce the generation of noise during steaming.

[0089] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0090] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not meant to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the drawings shown in the figures are not drawn to scale for ease of illustration. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification as appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely an example, and not as a limitation. Thus, other examples of the example embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0091] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, without the opposite description, these orientation words do not indicate and imply that the indicated device or element must have a particular orientation or be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0092] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0093] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the differentiation of corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the protection scope of the present application.

[0094] The above only describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steam system, characterized by, The steam generator (8) is used to generate steam. The steam pipe is provided on the inner container (18), one end of the steam pipe is connected with the steam generator (8). The flow resistance member (20) is arranged at the other end of the steam pipe, at least part of the flow resistance member (20) is arranged opposite and spaced from the steam outlet (23) of the steam pipe, a flow resistance channel is formed between the flow resistance member (20) and at least part of the steam pipe, the flow resistance channel is communicated with the cavity of the inner container (18), so that the steam in the steam pipe enters the cavity of the inner container (18) through the flow resistance channel. The flow resistance member (20) includes an annular shell (201), the annular shell (201) is sleeved on the other end of the steam pipe, one part of the annular shell (201) is connected with the steam pipe, and the other part of the annular shell (201) is spaced and arranged opposite to the steam outlet (23) to form the flow resistance channel.

2. The steam system of claim 1, wherein, The flow resistance member (20) further includes an end plate (202), the end plate (202) is connected with the annular shell (201) and located at the end of the annular shell (201), the end plate (202) is arranged opposite to one end of the flow resistance channel to block one end of the flow resistance channel.

3. The steam system of claim 2, wherein, The annular shell (201) has a first port (2011) and a second port arranged opposite, the first port (2011) is sleeved on the other end of the steam pipe, and the second port is located at the end of the other end of the steam pipe; 4. The steam system of claim 3, wherein, Wherein, the end plate (202) is arranged at the first port (2011), the end plate (202) is an annular plate structure, the inner ring of the end plate (202) is matched with the shape of the outer shape of the steam pipe to block the gap between the annular shell (201) and the steam pipe, so that the steam in the flow resistance channel flows out through the second port; or, The end plate (202) is arranged at the second port and blocks the second port, so that the steam in the flow resistance channel flows out through the first port (2011). The first port (2011) is located on one side of the second port close to the wall of the inner container (18); and / or 5. The steam system of claim 4, wherein, The steam pipe includes a steam inlet pipe (14) and a steam joint (15) connected with each other, the steam joint (15) is provided on the inner container (18), the steam inlet pipe (14) is detachably connected with the steam joint (15), the steam inlet pipe (14) is arranged outside the inner container (18), one end of the steam inlet pipe (14) away from the steam joint (15) forms one end of the steam pipe, and one end of the steam joint (15) away from the steam inlet pipe (14) forms the other end of the steam pipe. ​ 6. The steam system of claim 2, wherein, A turbulence protrusion (2012) is arranged on another part of the annular shell (201) and protrudes from the side of the annular shell (201) close to the steam outlet (23).

7. The steam system of claim 1, wherein, The steam pipe fitting comprises a steam joint (15) which is arranged on the inner container (18), a first external thread and a steam outlet (23) are arranged on the part of the steam joint (15) located in the inner container (18), the steam outlet (23) and the first external thread are arranged along the circumferential direction of the part of the steam joint (15) located in the inner container (18), the flow resistance member (20) is provided with a first internal thread matched with the first external thread, and the flow resistance member (20) is connected with the part of the steam joint (15) located in the inner container (18) through the thread connection.

8. The steam system of claim 7, wherein, The part of the steam joint (15) located in the inner container (18) comprises an avoiding surface (151) and a matching surface (152) which are connected with each other along the annular outer edge of the steam joint (15), the avoiding surface (151) is arranged opposite to and spaced apart from at least part of the flow resistance member (20), the steam outlet (23) is arranged on the avoiding surface (151), and the first external thread is arranged on the matching surface (152).

9. The steam system according to claim 8, characterized in that, the avoiding surface (151) is at least two, the at least two avoiding surfaces (151) are arranged spaced apart along the annular outer edge of the steam joint (15), the matching surface (152) is at least two, one matching surface (152) is arranged between adjacent two avoiding surfaces (151), the steam outlet (23) is arranged on each avoiding surface (151), and the first external thread is arranged on each matching surface (152); or the avoiding surface (151) is two, the two avoiding surfaces (151) are arranged spaced apart along the annular outer edge of the steam joint (15), the matching surface (152) is two, one matching surface (152) is arranged between the two avoiding surfaces (151), the steam outlet (23) is arranged on each avoiding surface (151), the first external thread is arranged on each matching surface (152), and the two avoiding surfaces (151) and the two matching surfaces (152) are connected to form a waist-shaped outer edge.

10. The steam system of claim 1, wherein, The steam pipe fitting is provided with a limiting protrusion (153), and the steam system further comprises: a sealing member (17) arranged between the steam pipe fitting and the inner container (18); An adjusting member (16) is arranged on the steam pipe member in a position-adjustable manner along the extension direction of the steam pipe member and is arranged in a spaced manner with the limiting protrusion (153), the adjusting member (16) is arranged protruding from the outer edge of the steam pipe member, and the sealing member (17) is arranged between the limiting protrusion (153) and the adjusting member (16), and two ends of the sealing member (17) are respectively used for contacting the limiting protrusion (153) and the adjusting member (16).

Images