Steam generator

Abstract

The invention provides a steam generator. The steam generator comprises a generating shell, a connecting channel and a deoxidizing assembly arranged in a main cavity part, the generating shell comprises a main cavity part and an air outlet cavity part, and the main cavity part is communicated with the air outlet cavity part, so that steam formed in the main cavity part flows into the air outlet cavity part and then flows out of the air outlet cavity part; the first end of the connecting channel is communicated with the air outlet cavity part; the deoxidizing assembly comprises a water storage cavity and a steam cavity which are adjacently arranged; the second end of the connecting channel is communicated with the steam cavity, so that part of steam in the steam outlet cavity part enters the steam cavity through the connecting channel; steam in the steam cavity is used for heating water in the water storage cavity so as to deoxidize the water in the water storage cavity; the water storage cavity is communicated with the main cavity part so that gas and / or water in the water storage cavity can flow into the main cavity part. The deoxidizing component is positioned in the steam generator to form integration, so that the size of the system can be greatly reduced, the complexity of the system is reduced, the cyclic utilization of high-temperature steam can be realized, and the steam waste is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of steam generators, and in particular to a steam generator. Background Art

[0002] The horizontal tube-type full-liquid evaporator has gradually become the core component of the high-temperature steam heat pump unit due to its low cost, simple structure, strong stability, and large cooling capacity. When it is used as a steam generator, the liquid water outside the heat exchange tube is heated into high-temperature steam by the high-temperature refrigerant inside the tube, and the external feed water continuously enters the shell to replenish the water volume.

[0003] In the above process, the shell water quality largely determines the durability and safety of the steam generator. When the oxygen content of the feed water is too high, it will cause equipment corrosion. When the corrosion amount reaches 2% to 5%, it is enough to cause pits on the inner wall of the equipment, further aggravating the accumulation of sediments, accelerating under-scale corrosion, and ultimately causing perforation, bursting and scrapping. Therefore, feed water deoxygenation is an essential and important process in the steam production system.

[0004] At present, the water deoxygenation methods are mainly divided into physical deoxygenation and chemical deoxygenation. The former mainly includes thermal deoxygenation, vacuum deoxygenation, etc., and the latter mainly includes iron filings deoxygenation, chemical deoxygenation, etc.

[0005] Among them, thermal deoxygenation is widely used due to its advantages such as low cost, ability to remove dissolved oxygen and other gases in the feed water at the same time, and no residual substances.

[0006] Thermal deoxygenation is based on the Henry-Dalton theorem, which states that the closer the water is to saturation, the less oxygen it contains. Therefore, deoxygenation can be achieved by heating the feed water to saturation.

[0007] Existing conventional steam generator systems require the additional configuration of an independent thermal deoxygenation system, which is generally large in size and has many pipelines. This increases the complexity of the system to a certain extent and fails to achieve the goal of miniaturization of the equipment. At the same time, the high-temperature steam generated no longer participates in the circulation after completing the deoxygenation of the feed water, resulting in steam waste. Summary of the invention

[0008] The main purpose of the present invention is to provide a steam generator to solve the problem that the steam generator system in the prior art is complex and causes steam waste.

[0009] In order to achieve the above-mentioned purpose, the present invention provides a steam generator, which includes: a generating shell, including a main cavity part and an air outlet cavity part, the main cavity part and the air outlet cavity part are connected so that the steam formed in the main cavity part flows into the air outlet cavity part and then flows out from the air outlet cavity part; a connecting channel, the first end of the connecting channel is connected with the air outlet cavity part; a deoxygenation component is arranged in the main cavity part; the deoxygenation component includes a water storage cavity and a steam cavity arranged adjacently; the second end of the connecting channel is connected with the steam cavity so that part of the steam in the air outlet cavity part enters the steam cavity through the connecting channel; the steam in the steam cavity is used to heat the water in the water storage cavity so as to deoxygenate the water in the water storage cavity; the water storage cavity is connected with the main cavity part so that the gas and / or water in the water storage cavity flows into the main cavity part.

[0010] Furthermore, the steam generator also includes a filter screen arranged in the generating shell, the main cavity portion and the air outlet cavity portion are separated by the filter screen, and the main cavity portion and the air outlet cavity portion are connected through the mesh holes of the filter screen, so that when the steam formed in the main cavity portion flows into the air outlet cavity portion through the filter screen, the filter screen filters the steam and separates the gas and liquid.

[0011] Furthermore, the steam generator also includes an air pump arranged on the connecting channel, so that part of the steam in the air outlet cavity is pumped into the connecting channel under the action of the air pump.

[0012] Furthermore, vent holes are provided on adjacent surfaces of the water storage chamber and the steam chamber, so that the steam in the steam chamber can disturb the water in the water storage chamber through the vent holes, thereby increasing the turbulence of the water in the water storage chamber.

[0013] Furthermore, the upper end of the water storage cavity is open to communicate with the main cavity.

[0014] Furthermore, a preset opening is provided on the side wall of the water storage chamber to communicate with the main cavity portion, so that the water in the water storage chamber flows into the main cavity portion through the preset opening.

[0015] Furthermore, the bottom wall of the water storage chamber is inclined relative to the horizontal plane, and a preset opening is provided on the side wall connected to the lower end of the bottom wall of the water storage chamber, so that the water in the water storage chamber flows into the main cavity through the preset opening.

[0016] Further, the steam chamber includes a first chamber portion and a second chamber portion, and the second end of the connecting channel is connected to the first chamber portion; the second chamber portion includes a plurality of chamber segments, and the distribution direction of the plurality of chamber segments is perpendicular to the distribution direction of the first chamber portion and the second chamber portion; two adjacent chamber segments are separated by a guide portion; the plurality of chamber segments include an intermediate chamber segment and two chamber segment groups located on both sides of the intermediate chamber segment; the second chamber portion includes two chamber unit; the two chamber segment groups are arranged in a one-to-one correspondence with the two chamber units, and each chamber unit includes an intermediate chamber segment and a corresponding chamber segment group; any three adjacent chamber segments of the chamber unit are respectively a first chamber segment, a second chamber segment and a third chamber segment; the first end of the first chamber segment and the first end of the second chamber segment are separated by a guide portion, and the second end of the first chamber segment and the second end of the second chamber segment are connected through a second opening; the second end of the second chamber segment and the second end of the third chamber segment are separated by a guide portion, and the first end of the second chamber segment and the first end of the third chamber segment are connected through a first opening; along the distribution direction of the plurality of chamber segments, the two chamber segments located at both ends are respectively two end chamber segments; at least one of the two end chamber segments is connected to the first chamber portion.

[0017] Furthermore, the deoxygenation component also includes a water collecting chamber, and a plurality of connecting holes are arranged on the adjacent surfaces between the water collecting chamber and the water storage chamber, and at least part of the plurality of connecting holes are distributed in a direction perpendicular to the distribution direction of the water collecting chamber and the water storage chamber, so that the water in the water collecting chamber flows into the water storage chamber through the plurality of connecting holes and increases the width of the water flow flowing into the water storage chamber to form a water film in the water storage chamber.

[0018] Furthermore, the steam generator also includes a water supply nozzle, the nozzle of the water supply nozzle is located in the main cavity, and at least part of the water flow sprayed from the nozzle of the water supply nozzle falls into the water collecting cavity.

[0019] Furthermore, the steam generator also includes a liquid blocking portion, which is opposite to the nozzle of the water supply nozzle and is spaced apart so that at least part of the water flow sprayed from the nozzle of the water supply nozzle is sprayed onto the liquid blocking portion, and at least part of the water flow sprayed onto the liquid blocking portion falls into the water collecting chamber under the action of gravity.

[0020] Furthermore, the liquid blocking portion has a liquid blocking surface, which is arranged toward the nozzle of the water supply nozzle; the liquid blocking surface is located above the water inlet of the water collecting chamber; along the distribution direction of the water collecting chamber and the water storage chamber, the liquid blocking surface is located between the water inlet of the water collecting chamber and the water storage chamber.

[0021] Furthermore, the water collecting chamber and the steam chamber are arranged adjacent to each other, so that the steam in the steam chamber heats the water in the water collecting chamber.

[0022] Furthermore, the steam generator also includes a water supply nozzle, the nozzle of the water supply nozzle is located in the main cavity, and the nozzle of the water supply nozzle is used for spraying water.

[0023] Furthermore, the deoxygenation component also includes a bubbling tube, a first end of the bubbling tube is connected to the steam chamber, and a second end of the bubbling tube extends into the water in the main cavity, so that the steam in the steam chamber bubbles the water in the main cavity through the bubbling tube.

[0024] Furthermore, at least one bubbling hole is provided on the tube wall of the bubbling tube, and the bubbling hole is located below the liquid level of the water in the main cavity, so that the steam in the bubbling tube bubbles the water in the main cavity through the bubbling hole.

[0025] Furthermore, there are multiple bubbling tubes.

[0026] Furthermore, there are multiple deoxygenation components and multiple connecting channels, and the multiple deoxygenation components are arranged in a one-to-one correspondence with the multiple connecting channels.

[0027] Applying the technical solution of the present invention, the steam generator includes a generating shell, a connecting channel and a deoxygenation component; the generating shell includes a main cavity portion and an air outlet cavity portion, the main cavity portion and the air outlet cavity portion are connected so that the steam formed in the main cavity portion flows into the air outlet cavity portion and then flows out from the air outlet cavity portion; the first end of the connecting channel is connected to the air outlet cavity portion; the deoxygenation component is arranged in the main cavity portion; the deoxygenation component includes a water storage chamber and a steam chamber arranged adjacently; the second end of the connecting channel is connected to the steam chamber so that part of the steam in the air outlet cavity portion enters the steam chamber through the connecting channel; the steam in the steam chamber is used to heat the water in the water storage chamber so as to deoxygenate the water in the water storage chamber; the water storage chamber is connected to the main cavity portion so that the gas and / or water in the water storage chamber flows into the main cavity portion.

[0028] By locating the deaerator component inside the steam generator to form an integrated system, not only can the system size and complexity be greatly reduced, but the recycling of high-temperature steam can also be achieved, effectively reducing steam waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0030] Figure 1 A schematic structural diagram of an embodiment of a steam generator according to the present invention is shown;

[0031] Figure 2 Shows Figure 1 A longitudinal sectional view of a steam generator in FIG.

[0032] Figure 3 Shows Figure 1 An enlarged structural diagram of a deaerator assembly of a steam generator;

[0033] Figure 4An exploded structural diagram of a deoxidation assembly of a steam generator according to the present invention is shown;

[0034] Figure 5 Shows Figure 4 A schematic diagram of the composition structure of the deoxidation component;

[0035] Figure 6 Shows Figure 5 A schematic diagram of the structure of the deoxidation component after removing the first partition;

[0036] Figure 7 A schematic diagram of a steam generator according to the present invention is shown.

[0037] The above drawings include the following reference numerals:

[0038] 10. Generator shell; 11. Main cavity; 12. Gas outlet cavity; 121. Gas outlet cavity section; 122. Gas outlet passage; 13. Third cavity; 131. Heat exchange medium inlet; 14. Fourth cavity; 15. Fifth cavity; 151. Heat exchange medium outlet; 16. Fifth partition; 17. Sixth partition; 18. Seventh partition;

[0039] 20. connecting channel; 201. connecting pipe; 21. air pump;

[0040] 30, deaerator assembly; 31, water storage chamber; 311, first side plate; 312, second side plate; 313, third side plate; 32, steam chamber; 3201, first chamber; 3202, second chamber; 3203, chamber section; 3204, end chamber section; 3205, middle chamber section; 321, fourth side plate; 322, fifth side plate; 323, sixth side plate; 324, seventh side plate; 3241, communication port; 325, first bottom plate; 3 26, second bottom plate; 327, first cover plate; 328, eighth side plate; 329, second cover plate; 33, first partition; 331, vent hole; 34, preset opening; 35, flow guide; 36, second partition; 361, third opening; 37, water collecting chamber; 371, ninth side plate; 373, tenth side plate; 38, third partition; 381, connecting hole; 39, fourth partition; 300, bubbling tube; 301, bubbling hole;

[0041] 40. filter screen; 50. water supply nozzle; 60. liquid retaining part; 71. first heat exchange tube; 72. second heat exchange tube. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] The present invention provides a steam generator, please refer to Figures 1 to 7 The steam generator includes a generating shell 10, a connecting channel 20 and a deoxidizing assembly 30; the generating shell 10 includes a main cavity 11 and an air outlet cavity 12, the main cavity 11 and the air outlet cavity 12 are connected so that the steam formed in the main cavity 11 flows into the air outlet cavity 12 and then flows out from the air outlet cavity 12; the deoxidizing assembly 30 is arranged in the main cavity 11; the deoxidizing assembly 30 includes a water storage cavity 31 and a steam cavity 32 arranged adjacent to each other; the first end of the connecting channel 20 is connected to the air outlet cavity 12, and the second end of the connecting channel 20 is connected to the steam The steam chamber 32 is connected so that part of the steam in the air outlet chamber 12 enters the steam chamber 32 through the connecting channel 20; the steam in the steam chamber 32 is used to heat the water in the water storage chamber 31 to deoxygenate the water in the water storage chamber 31, that is, deoxygenation is performed by thermal deoxygenation; the water storage chamber 31 is connected to the main chamber 11 so that the gas and / or water in the water storage chamber 31 flows into the main chamber 11, that is, the gas including oxygen generated in the process of deoxygenating the water in the water storage chamber 31 can flow into the main chamber 11.

[0046] It should be noted that thermal deoxygenation refers to heating the feed water with steam. During the heating process, the partial pressure of water vapor on the water surface gradually increases, the partial pressure of other gases gradually decreases, and the gases in the water are continuously separated.

[0047] Specifically, the deoxidation component 30 is a built-in deoxidation component; the steam generator of the present application is a built-in deoxidation steam generator.

[0048] In the present application, the steam generator also includes a filter 40; the filter 40 is arranged in the generator shell 10, and the main cavity 11 and the air outlet cavity 12 are separated by the filter 40, and the main cavity 11 and the air outlet cavity 12 are connected through the mesh holes of the filter 40; when the steam formed in the main cavity 11 flows into the air outlet cavity 12 through the filter 40, the filter 40 filters the steam and further separates the gas and liquid.

[0049] During the specific implementation process, the steam flowing from the main cavity 11 into the air cavity 12 will still carry a certain amount of moisture; when the steam flows through the filter 40, the filter 40 can block part of the moisture carried by the steam and retain it on the filter 40, thereby playing a role in gas-liquid separation; the moisture retained on the filter 40 can fall into the main cavity 11 under the action of gravity.

[0050] Specifically, the filter screen 40 is connected to the generating shell 10 .

[0051] In the present application, the steam generator further includes an air pump 21 disposed on the connecting channel 20 , so that part of the steam in the air outlet cavity 12 is pumped into the connecting channel 20 and then into the steam cavity 32 under the action of the air pump 21 .

[0052] Specifically, the steam flow rate entering the connecting channel 20 can also be adjusted by the air pump 21 .

[0053] In the present application, vent holes 331 are provided on adjacent surfaces of the water storage chamber 31 and the steam chamber 32, that is, the water storage chamber 31 and the steam chamber 32 are connected via the vent holes 331, so that the steam in the steam chamber 32 disturbs the water in the water storage chamber 31 through the vent holes 331, thereby increasing the turbulence of the water in the water storage chamber 31; in this way, not only can the deoxygenation effect be enhanced by increasing the turbulence of the water in the water storage chamber 31, but also the heat exchange effect between the steam in the steam chamber 32 and the water in the water storage chamber 31 can be enhanced, thereby enhancing the deoxygenation effect.

[0054] Specifically, a plurality of vent holes 331 are provided on adjacent surfaces of the water storage chamber 31 and the steam chamber 32 , and the vent holes 331 are tiny openings.

[0055] Specifically, the deoxygenation assembly 30 includes a first partition 33 , and the water storage chamber 31 and the steam chamber 32 are separated by the first partition 33 ; that is, the first partition 33 is used to enclose both the water storage chamber 31 and the steam chamber 32 ; the vent 331 is arranged on the first partition 33 .

[0056] Optionally, the first partition 33 is a plate-shaped structure, that is, the first partition 33 is a partition plate.

[0057] Optionally, the upper surface of the first partition 33 forms the bottom wall of the water storage chamber 31, that is, the upper plate surface of the first partition 33 forms the bottom wall of the water storage chamber 31; the lower surface of the first partition 33 forms the top wall of the steam chamber 32, that is, the lower plate surface of the first partition 33 forms the top wall of the steam chamber 32.

[0058] In the present application, the upper end of the water storage chamber 31 is open, so that the water storage chamber 31 is connected to the main cavity 11 through its upper end opening; the gas in the water storage chamber 31 flows into the main cavity 11 through its upper end opening.

[0059] Optionally, the water storage chamber 31 is a trough-shaped structure.

[0060] In the present application, a preset opening 34 is provided on the side wall of the water storage chamber 31 so that the water storage chamber 31 is connected with the main cavity 11 through the preset opening 34 , and the water in the water storage chamber 31 flows into the main cavity 11 through the preset opening 34 .

[0061] Optionally, the bottom wall of the water storage chamber 31 is inclined relative to the horizontal plane so that water in the water storage chamber 31 flows from the higher end of the bottom wall to the lower end; a preset opening 34 is provided on the side wall connected to the lower end of the bottom wall of the water storage chamber 31.

[0062] Optionally, when the first partition 33 is a partition plate, the partition plate is inclined relative to the horizontal plane, so that the bottom wall of the water storage chamber 31 is inclined relative to the horizontal plane.

[0063] Optionally, the deoxygenation assembly 30 includes a first side plate 311 and a second side plate 312 that are arranged opposite to each other, and the deoxygenation assembly 30 also includes a third side plate 313, and the third side plate 313 is arranged between the first end of the first side plate 311 and the first end of the second side plate 312, and the first side plate 311, the second side plate 312 and the third side plate 313 are all arranged on the first partition 33, so that the first side plate 311, the second side plate 312, the third side plate 313 and the first partition 33 together enclose the water storage chamber 31, and a preset opening 34 is formed between the second end of the first side plate 311 and the second end of the second side plate 312.

[0064] Optionally, the deoxygenation assembly 30 includes a fourth side plate 321, a fifth side plate 322, a sixth side plate 323, and a seventh side plate 324 which are sequentially connected and connected end to end, the fourth side plate 321 and the sixth side plate 323 are arranged opposite to each other, and the fifth side plate 322 and the seventh side plate 324 are arranged opposite to each other; the deoxygenation assembly 30 also includes a first bottom plate 325, a second bottom plate 326, the seventh side plate 324, a first cover plate 327, an eighth side plate 328, a second cover plate 329, the first partition 33, and the fifth side plate 322 which are sequentially connected and connected end to end; the eighth side plate 328 and the fifth side plate 322 are arranged opposite to the seventh side plate 324, and the first cover plate 327, the eighth side plate 328, the second cover plate 329, the first partition 33, and the fifth side plate 322; the eighth side plate 328 and the fifth side plate 322 are arranged opposite to the seventh side plate 324, and the first cover plate 329 is arranged opposite to the seventh side plate 324. The plate 327 and the second cover plate 329 are both arranged opposite to the second bottom plate 326, and the first partition 33 is arranged opposite to the first bottom plate 325; the fourth side plate 321 and the sixth side plate 323 are both arranged between the first cover plate 327 and the second bottom plate 326, and between the second cover plate 329 and the second bottom plate 326, and between the first partition 33 and the first bottom plate 325; the first bottom plate 325, the second bottom plate 326, the seventh side plate 324, the first cover plate 327, the eighth side plate 328, the second cover plate 329, the first partition 33, the fifth side plate 322, the fourth side plate 321, and the sixth side plate 323 together form a steam chamber 32.

[0065] Optionally, the first side plate 311 and the fourth side plate 321 are the same plate body; the second side plate 312 and the sixth side plate 323 are the same plate body.

[0066] In the present application, the steam chamber 32 includes a first chamber portion 3201 and a second chamber portion 3202 , and the second end of the connecting channel 20 is in communication with the first chamber portion 3201 .

[0067] The second cavity portion 3202 includes a plurality of cavity segments 3203 , and the distribution direction of the plurality of cavity segments 3203 is perpendicular to the distribution direction of the first cavity portion 3201 and the second cavity portion 3202 ; two adjacent cavity segments 3203 are separated by a guide portion 35 .

[0068] Along the distribution direction of the multiple cavity segments 3203, the multiple cavity segments 3203 include a middle cavity segment 3205 and two cavity segment groups located on both sides of the middle cavity segment 3205; the second cavity portion 3202 includes two cavity portion units; the two cavity segment groups are arranged in a one-to-one correspondence with the two cavity portion units, and each cavity portion unit includes a middle cavity segment 3205 and a corresponding cavity segment group.

[0069] In each cavity unit, any three adjacent cavity segments 3203 are respectively the first cavity segment, the second cavity segment and the third cavity segment; the first end of the first cavity segment and the first end of the second cavity segment are separated by a guide portion 35 between the two cavity segments, and the second end of the first cavity segment and the second end of the second cavity segment are connected through a second opening; the second end of the second cavity segment and the second end of the third cavity segment are separated by a guide portion 35 between the two cavity segments, and the first end of the second cavity segment and the first end of the third cavity segment are connected through the first opening.

[0070] Along the distribution direction of the plurality of cavity segments 3203 , the two cavity segments 3203 located at the two ends are respectively two end cavity segments 3204 ; at least one of the two end cavity segments 3204 is communicated with the first cavity portion 3201 .

[0071] In the specific implementation process, part of the steam in the air outlet cavity 12 flows into the first cavity 3201 through the connecting channel 20, then flows into the end cavity section 3204, and then sequentially flows through each cavity section 3203. In this way, the flow time of the steam in the steam cavity 32 can be increased, thereby increasing the heat exchange effect between the steam in the steam cavity 32 and the water in the water storage cavity 31, and increasing the disturbance effect of the steam in the steam cavity 32 on the water in the water storage cavity 31, thereby enhancing the deoxygenation effect of the water in the water storage cavity 31.

[0072] Figure 6 The arrows in FIG. 3 show the steam flow direction in the second chamber 3202. Figure 6 The two end cavity sections 3204 are both connected to the first cavity portion 3201.

[0073] Specifically, one end of the end cavity segment 3204 is communicated with the first cavity portion 3201 , and the other end of the end cavity segment 3204 is communicated with the cavity segment 3203 adjacent thereto.

[0074] Optionally, the guide portion 35 is a plate-shaped structure.

[0075] Optionally, in any three adjacent cavity segments 3203 in each cavity unit, the second end of the guide portion 35 between the first cavity segment and the second cavity segment is spaced apart from the cavity wall of the second cavity 3202 to form a second opening between the second end of the guide portion 35 and the cavity wall of the second cavity 3202; the first end of the guide portion 35 between the second cavity segment and the third cavity segment is spaced apart from the cavity wall of the second cavity 3202 to form a first opening between the first end of the guide portion 35 and the cavity wall of the second cavity 3202.

[0076] Specifically, the first cavity 3201 and the second cavity 3202 are separated by the second partition 36; along the distribution direction of the plurality of cavity segments 3203, the second partition 36 has two oppositely disposed ends; at least one end of the second partition 36 is spaced from the cavity wall of the steam cavity 32, so that a third opening 361 is formed between the end of the second partition 36 and the cavity wall of the steam cavity 32, so that the end cavity segment 3204 is connected to the first cavity 3201 through the third opening 361. That is, there are one or two third openings 361.

[0077] Optionally, the second partition 36 is a plate-shaped structure.

[0078] In the present application, the deoxygenation component 30 also includes a water collecting chamber 37, and a plurality of connecting holes 381 are arranged on the adjacent surface between the water collecting chamber 37 and the water storage chamber 31. At least part of the plurality of connecting holes 381 are distributed along a preset direction, and the preset direction is perpendicular to the distribution direction of the water collecting chamber 37 and the water storage chamber 31, so that the water in the water collecting chamber 37 flows into the water storage chamber 31 through the plurality of connecting holes 381, and increases the width of the water flow flowing into the water storage chamber 31, so as to form a water film in the water storage chamber 31; the width direction of the water flow in the water storage chamber 31 is parallel to or the same as the preset direction.

[0079] The water in the water collecting chamber 37 flows into the water storage chamber 31 through the multiple connecting holes 381, that is, the water in the water collecting chamber 37 is divided into multiple streams, thereby quickly forming a thinner water film.

[0080] By increasing the width of the water flow into the water storage chamber 31, on the one hand, the heat exchange effect between the steam in the steam chamber 32 and the water in the water storage chamber 31 can be increased; on the other hand, the disturbance effect of the steam in the steam chamber 32 on the water in the water storage chamber 31 can be increased; on the third hand, the contact area between the water in the water storage chamber 31 and the steam in the main cavity 11 can be increased, thereby increasing the heat exchange effect between the steam in the main cavity 11 and the water in the water storage chamber 31. Through these three aspects, the deoxygenation effect on the water in the water storage chamber 31 can be increased.

[0081] In addition, when the water in the water collecting chamber 37 flows into the water storage chamber 31 through the multiple connecting holes 381, the turbulence of the water flow can also be increased to a certain extent.

[0082] Optionally, the multiple connecting holes 381 include multiple connecting hole groups, and the multiple connecting hole groups are distributed along a preset direction; the connecting hole group includes at least one connecting hole 381; when the connecting hole group includes multiple connecting holes 381, the distribution direction of the multiple connecting holes 381 of the connecting hole group is perpendicular to the preset direction, and the distribution direction of the multiple connecting holes 381 of the connecting hole group is perpendicular to the distribution direction of the water collecting chamber 37 and the water storage chamber 31.

[0083] Optionally, in each communication hole group, the apertures of the plurality of communication holes 381 gradually decrease along a direction approaching the bottom wall of the water storage chamber 31 .

[0084] Specifically, the water collecting chamber 37 and the water storage chamber 31 are separated by a third partition 38 ; and the plurality of communication holes 381 are all disposed on the third partition 38 .

[0085] Optionally, the third partition 38 is a plate-shaped structure.

[0086] Specifically, the third side plate 313 forms the third partition 38 .

[0087] Optionally, the deoxygenation assembly 30 includes a ninth side plate 371, the eighth side plate 328, the tenth side plate 373, and the third partition 38, which are connected in sequence and connected end to end; the eighth side plate 328 and the third partition 38 are arranged opposite to each other; the ninth side plate 371 and the tenth side plate 373 are arranged opposite to each other; the eighth side plate 328, the eighth side plate 328, the tenth side plate 373 and the third partition 38 are all arranged on the second cover plate 329, and the eighth side plate 328, the eighth side plate 328, the tenth side plate 373, the third partition 38 and the second cover plate 329 together form a water collecting chamber 37.

[0088] In the present application, the water collecting chamber 37 and the steam chamber 32 are arranged adjacent to each other, so that the steam in the steam chamber 32 can also heat the water in the water collecting chamber 37 .

[0089] Specifically, the deoxidation assembly 30 further includes a fourth partition 39 , and the water collecting chamber 37 and the steam chamber 32 are separated by the fourth partition 39 .

[0090] Specifically, the water collecting chamber 37 and the first chamber portion 3201 are arranged adjacent to each other so that the steam in the first chamber portion 3201 heats the water in the water collecting chamber 37; the water storage chamber 31 and the second chamber portion 3202 are arranged adjacent to each other so that the steam in the second chamber portion 3202 heats the water in the water storage chamber 31.

[0091] Specifically, the water collecting chamber 37 and the first cavity portion 3201 are separated by a fourth partition 39 ; the water storage chamber 31 and the second cavity portion 3202 are separated by a first partition 33 .

[0092] Optionally, the fourth partition 39 is a plate-shaped structure.

[0093] Optionally, the eighth side plate 328 and the second cover plate 329 together form a fourth partition 39 .

[0094] Optionally, the upper end of the water collecting chamber 37 is open.

[0095] Specifically, a communication port 3241 is opened on the cavity wall of the steam cavity 32 , and the second end of the connecting channel 20 is in communication with the communication port 3241 .

[0096] Specifically, the communication port 3241 is provided on the seventh side plate 324 .

[0097] Optionally, the eighth side plate 328, the first side plate 311 and the fourth side plate 321 are the same plate body; the tenth side plate 373, the second side plate 312 and the sixth side plate 323 are the same plate body.

[0098] In the present application, optionally, the water storage chamber 31 is located above the steam chamber 32; the water collection chamber 37 is located above the steam chamber 32. That is, the water storage chamber 31 is located above the first cavity portion 3201, and the water collection chamber 37 is located above the second cavity portion 3202.

[0099] In the present application, the steam generator also includes a water supply nozzle 50, the nozzle of the water supply nozzle 50 is located in the main cavity 11, and the nozzle of the water supply nozzle 50 is used to spray water; water is sprayed into the main cavity 11 through the water supply nozzle 50 to replenish water into the main cavity 11.

[0100] It should be noted that replenishing water into the main cavity 11 by spraying or atomizing can increase the contact area between the feed water and the steam in the main cavity 11, which is beneficial to the thermal deoxygenation effect of steam on the feed water.

[0101] Specifically, the water supply nozzle 50 is connected to the external water supply, so that the external water supply enters the main cavity 11 through the water supply nozzle 50 .

[0102] Specifically, the water supply nozzle 50 is fixed on the generating shell 10 .

[0103] In the present application, at least part of the water flow sprayed from the nozzle of the water supply nozzle 50 falls into the water collecting chamber 37 .

[0104] Specifically, the upper end of the water collecting chamber 37 has a water receiving port, so that at least part of the water flow sprayed from the nozzle of the water supply nozzle 50 falls into the water collecting chamber 37 through the water receiving port.

[0105] Optionally, the upper end of the water collecting chamber 37 is open, so that the upper end of the water collecting chamber 37 forms its water receiving port.

[0106] Specifically, the nozzle of the water supply nozzle 50 is located above the water receiving port of the water collecting chamber 37 ; for example, the nozzle of the water supply nozzle 50 is located obliquely above the water receiving port of the water collecting chamber 37 .

[0107] In the present application, the steam generator also includes a liquid blocking portion 60, which is opposite to the nozzle of the water supply nozzle 50 and is spaced apart so that at least part of the water flow sprayed from the nozzle of the water supply nozzle 50 is sprayed onto the liquid blocking portion 60, and at least part of the water flow sprayed onto the liquid blocking portion 60 falls into the water collecting chamber 37 under the action of gravity.

[0108] Specifically, the liquid blocking portion 60 has a liquid blocking surface, which is arranged toward the nozzle of the water supply nozzle 50. At least part of the water flow sprayed from the nozzle of the water supply nozzle 50 is sprayed onto the liquid blocking surface of the liquid blocking portion 60, and at least part of the water flow sprayed onto the liquid blocking surface of the liquid blocking portion 60 falls into the water collecting chamber 37 under the action of gravity.

[0109] Optionally, the liquid blocking surface is parallel to the vertical direction.

[0110] Optionally, the liquid blocking portion 60 is a plate-shaped structure, and one plate surface of the liquid blocking portion 60 is a liquid blocking surface.

[0111] Specifically, the liquid blocking surface is located above the water inlet of the water collecting chamber 37; and along the distribution direction of the water collecting chamber 37 and the water storage chamber 31, the liquid blocking surface is located between the water inlet of the water collecting chamber 37 and the water storage chamber 31, so as to prevent the water sprayed from the nozzle of the water supply nozzle 50 from falling directly into the water storage chamber 31 under the liquid blocking effect of the liquid blocking surface; that is, at least part of the water sprayed from the nozzle of the water supply nozzle 50 can only fall into the water collecting chamber 37, and then flow from the water collecting chamber 37 to the water storage chamber 31.

[0112] Specifically, the liquid blocking portion 60 is fixed on the inner wall of the generating housing 10 .

[0113] In the present application, a certain amount of water accumulates at the bottom of the main cavity 11; the deoxygenation assembly 30 also includes a bubbling tube 300, a first end of the bubbling tube 300 is connected to the steam cavity 32, and a second end of the bubbling tube 300 extends into the water in the main cavity 11, so that the steam in the steam cavity 32 bubbles the water in the main cavity 11 through the bubbling tube 300; the water in the main cavity 11 is deoxygenated by bubbling the water in the main cavity 11.

[0114] It should be noted that bubbling the water in the main cavity 11 is similar to blowing air into the water to generate bubbles.

[0115] It should be noted that, when the water in the main cavity 11 is bubbling, on the one hand, the steam in the bubbling tube 300 enters the water in the main cavity 11, so that the steam and water are further in contact and heat exchanged, and the dissolved oxygen and non-condensable gas in the water are taken out; on the other hand, bubbling can increase the disturbance of the water in the main cavity 11, which can not only increase the deoxygenation effect by increasing the heat exchange effect, but also increase the deoxygenation effect by disturbing the gas in the water.

[0116] In the present application, at least one bubbling hole 301 is provided on the tube wall of the bubbling tube 300, and all the bubbling holes 301 on the bubbling tube 300 are located below the liquid level of the water in the main cavity 11, so that the steam in the bubbling tube 300 can bubble the water in the main cavity 11 through the bubbling holes 301. In this way, the bubbling effect can be increased.

[0117] Specifically, the first end of the bubbling tube 300 is communicated with the second cavity portion 3202. Further, the first end of the bubbling tube 300 is communicated with the middle cavity section 3205.

[0118] Optionally, when a plurality of bubbling holes 301 are provided on the tube wall of the bubbling tube 300, the plurality of bubbling holes 301 include a plurality of bubbling groups, and the plurality of bubbling groups are distributed along the extension direction of the bubbling tube 300; the bubbling group includes one or more bubbling holes 301; when the bubbling group includes a plurality of bubbling holes 301, the plurality of bubbling holes 301 of the bubbling group are distributed along the circumference of the bubbling tube 300.

[0119] Optionally, the first end of the bubbling tube 300 is communicated with the bottom of the steam chamber 32 .

[0120] Optionally, the first end of the bubbling tube 300 is its upper end, and the second end of the bubbling tube 300 is its lower end.

[0121] Optionally, the bubbling tube 300 is extended in the vertical direction.

[0122] Optionally, the deoxygenation assembly 30 includes a plurality of bubbling tubes 300 .

[0123] Optionally, the plurality of bubbling tubes 300 of the deoxygenation assembly 30 are distributed along the length direction of the middle chamber section 3205 .

[0124] In the present application, optionally, the steam generator further includes a connecting pipe 201 , and a tube cavity of the connecting pipe 201 is a connecting channel 20 .

[0125] Specifically, a portion of the connecting tube 201 is located outside the generator shell 10 , and another portion is located inside the main cavity 11 ; the connecting tube 201 is passed through the generator shell 10 .

[0126] In the present application, the generating shell 10 further includes a third cavity 13 , a fourth cavity 14 and a fifth cavity 15 . The third cavity 13 and the fifth cavity 15 are located on the same side of the main cavity 11 ; the fourth cavity 14 is located on the other side of the main cavity 11 .

[0127] The steam generator also includes a first group of heat exchange tubes and a second group of heat exchange tubes, the first group of heat exchange tubes includes at least one first heat exchange tube 71, and the second group of heat exchange tubes includes at least one second heat exchange tube 72; the first group of heat exchange tubes and the second group of heat exchange tubes are both located in the main cavity 11; the two ends of the first heat exchange tube 71 are respectively connected to the third cavity 13 and the fourth cavity 14, and the two ends of the second heat exchange tube 72 are respectively connected to the fourth cavity 14 and the fifth cavity 15.

[0128] The third cavity 13 is used to pass high-temperature heat exchange medium; the high-temperature heat exchange medium in the third cavity 13 flows through the first heat exchange tube 71 of the first group of heat exchange tubes, and the high-temperature heat exchange medium in the first heat exchange tube 71 is used to heat the water in the main cavity 11, so that the water in the main cavity 11 is vaporized into steam, that is, steam is generated outside the heat exchange tube; the heat exchange medium in the first heat exchange tube 71 flows into the fourth cavity 14, and then flows through the second heat exchange tube 72 of the second group of heat exchange tubes, and the heat exchange medium in the second heat exchange tube 72 heats the water in the main cavity 11 again; the heat exchange medium in the second heat exchange tube 72 flows into the fifth cavity 15, and then flows out from the fifth cavity 15.

[0129] Since the high-temperature heat exchange medium is continuously introduced into the first heat exchange tube 71 , the heat exchange medium flowing into the fourth cavity 14 from the first heat exchange tube 71 can only flow into the second heat exchange tube 72 .

[0130] Optionally, the heat exchange medium introduced into the third cavity 13 is a steam medium, and the steam medium becomes a liquid medium after passing through the first heat exchange tube 71 and the second heat exchange tube 72 .

[0131] Optionally, the third cavity 13 is located above the fifth cavity 15 .

[0132] Optionally, the first group of heat exchange tubes is located above the second group of heat exchange tubes.

[0133] Specifically, the third cavity 13 has a heat exchange medium inlet 131 ; the fifth cavity 15 has a heat exchange medium outlet 151 .

[0134] Specifically, the steam generator also includes a fifth partition 16, which is used to separate the main cavity 11 and the third cavity 13, and to separate the main cavity 11 and the fifth cavity 15; the fifth partition 16 is provided with a first connecting port and a second connecting port; the first end of the first heat exchange tube 71 is connected and communicated with the first connecting port, so that the first end of the first heat exchange tube 71 is connected with the third cavity 13 through the first connecting port; the first end of the second heat exchange tube 72 is connected and communicated with the second connecting port, so that the first end of the second heat exchange tube 72 is connected with the fifth cavity 15 through the second connecting port.

[0135] Specifically, the steam generator also includes a sixth partition 17, which is used to separate the main cavity 11 and the fourth cavity 14; the sixth partition 17 is provided with a third connecting port and a fourth connecting port; the second end of the first heat exchange tube 71 is connected and communicated with the third connecting port, so that the second end of the first heat exchange tube 71 is connected with the fourth cavity 14 through the third connecting port; the second end of the second heat exchange tube 72 is connected and communicated with the fourth connecting port, so that the second end of the second heat exchange tube 72 is connected with the fourth cavity 14 through the fourth connecting port.

[0136] Specifically, the steam generator further includes a seventh partition 18 , and the seventh partition 18 is used to separate the third cavity 13 from the fifth cavity 15 .

[0137] Optionally, the first group of heat exchange tubes and the second group of heat exchange tubes are both located in the lower part of the main cavity 11 .

[0138] Optionally, the fifth partition 16 extends out of the generator shell 10 to support the steam generator as a whole; the sixth partition 17 extends out of the generator shell 10 to support the steam generator as a whole.

[0139] Optionally, a fin structure may be provided on the outer wall surface of the heat exchange tube to increase the heat exchange area between the heat exchange medium in the heat exchange tube and the water in the main cavity 11, thereby increasing the heat exchange effect.

[0140] In the present application, the air outlet cavity portion 12 includes an air outlet cavity section 121 and an air outlet channel 122, and the main cavity portion 11 and the air outlet cavity section 121 are connected so that the steam formed in the main cavity portion 11 flows into the air outlet cavity section 121; one end of the air outlet channel 122 is connected to the air outlet cavity section 121, and the other end of the air outlet channel 122 is an air outlet port; the first end of the connecting channel 20 is connected to the air outlet channel 122.

[0141] Specifically, the filter screen 40 is used to separate the main cavity portion 11 and the air outlet cavity section 121 .

[0142] In the present application, the steam chamber 32 is a closed chamber; the water storage chamber 31 and the water collecting chamber 37 are both open chambers.

[0143] In the present application, optionally, there are multiple deoxygenation components 30 and multiple connecting channels 20, and multiple deoxygenation components 30 are arranged in a one-to-one correspondence with multiple connecting channels 20; multiple air pumps 21 are arranged in a one-to-one correspondence on the multiple connecting channels 20.

[0144] Specifically, there are multiple water supply nozzles 50 and multiple liquid blocking parts 60, and the multiple water supply nozzles 50 are arranged in a one-to-one correspondence with the multiple deoxygenation components 30, and the multiple liquid blocking parts 60 are arranged in a one-to-one correspondence with the multiple deoxygenation components 30.

[0145] In the present application, the deoxygenation process of the water supply entering the main cavity 11 through the water supply nozzle 50 can be divided into three sections, namely, a spray deoxygenation section, a film-forming deoxygenation section, and a bubbling deoxygenation section.

[0146] For the spray deoxygenation stage, the feed water is rapidly atomized by the feed water nozzle 50, which greatly increases the steam-water contact area, strengthens the heat exchange between the feed water and the steam formed in the main cavity 11, and ensures the initial deoxygenation effect of the feed water.

[0147] However, when the water droplets are too small, the surface tension will prevent the diffusion of oxygen. For this reason, a water film deoxygenation section is designed, which relies on dispersing the water into a water film to reduce the surface tension of the droplets and achieve the purpose of removing residual oxygen. Specifically, for the film deoxygenation section, the water after preliminary deoxygenation is blocked by the liquid blocking part 60 and gathers downward in the water collecting chamber 37, and then flows to the water storage chamber 31 through the connecting hole 381 on the third partition 38, and forms a large liquid film on the bottom wall of the water storage chamber 31, and then gathers in the main cavity 11 through the preset opening 34, and then exchanges heat with the heat exchange tube. At the same time, the steam in the steam chamber 32 exchanges heat with the water in the water storage chamber 31 and the water collecting chamber 37, achieving the purpose of secondary deoxygenation; and a small amount of steam will enter the liquid film in the water storage chamber 31 through the vent hole 331 on the first partition 33, disturbing the water flow and further enhancing the deoxygenation effect.

[0148] For the bubbling deoxygenation stage, since all the bubbling holes 301 on the bubbling tube 300 are located below the liquid level of the water in the main cavity 11, that is, the opening area on the bubbling tube 300 is completely immersed in the water in the main cavity 11, the steam entering the bubbling tube 300 from the steam cavity 32 will be sprayed from the bubbling holes 301 into the water in the main cavity 11, so that the steam and water are further in contact, heat exchange is enhanced, and dissolved oxygen and non-condensable gases in the water are taken out, achieving the purpose of three deoxygenation. Relying on the above-mentioned three-stage deoxygenation measures, the deoxygenation effect of the feed water can be greatly improved; therefore, the steam generator of this application is a high-efficiency steam generator with built-in deoxygenation.

[0149] It should be noted that part of the water sprayed from the water supply nozzle 50 will not fall into the water collecting chamber 37, but directly fall into the main chamber 11, and this part of the water only passes through the spray deoxygenation section and the bubbling deoxygenation section.

[0150] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0151] In the steam generator provided by the present invention, the steam generator includes a generator shell 10, a connecting channel 20 and a deoxidation component 30; the generator shell 10 includes a main cavity 11 and an air outlet cavity 12, and the main cavity 11 and the air outlet cavity 12 are connected so that the steam formed in the main cavity 11 flows into the air outlet cavity 12 and then flows out from the air outlet cavity 12; the deoxidation component 30 is arranged in the main cavity 11; the deoxidation component 30 includes a water storage cavity 31 and a steam cavity 32 arranged adjacent to each other; the first end of the connecting channel 20 is connected to the air outlet cavity 12, and the second end of the connecting channel 20 is connected to the steam cavity 32 so that part of the steam in the air outlet cavity 12 enters the steam cavity 32 through the connecting channel 20; the steam in the steam cavity 32 is used to heat the water in the water storage cavity 31 to deoxidize the water in the water storage cavity 31, that is, deoxidize the water by thermal deoxidation; the water storage cavity 31 is connected to the main cavity 11 so that the gas and / or water in the water storage cavity 31 flows into the main cavity 11.

[0152] The deoxidation component 30 of the present application is located inside the steam generator to form an integrated structure, which can not only significantly reduce the system size and system complexity, but also realize the recycling of high-temperature steam and effectively reduce steam waste.

[0153] The steam generator of the present application: 1. Greatly improves the deoxygenation efficiency, effectively reduces the oxygen content of the feed water, and greatly slows down metal oxidation corrosion; 2. Makes full use of the internal space of the steam generator, reduces the complexity of the system, and promotes the miniaturization of the system; 3. The generated high-temperature steam still participates in the circulation after completing the deoxygenation of the feed water, reducing the waste of steam.

[0154] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0155] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0156] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam generator, characterized in that: include: The generating shell (10) comprises a main cavity (11) and an air outlet cavity (12), wherein the main cavity (11) and the air outlet cavity (12) are connected so that the steam formed in the main cavity (11) flows into the air outlet cavity (12) and then flows out from the air outlet cavity (12); A connecting channel (20), a first end of the connecting channel (20) being in communication with the air outlet cavity (12); A deoxygenation component (30) is arranged in the main cavity (11); the deoxygenation component (30) comprises a water storage cavity (31) and a steam cavity (32) which are arranged adjacent to each other; the second end of the connecting channel (20) is in communication with the steam cavity (32), so that part of the steam in the gas outlet cavity (12) enters the steam cavity (32) through the connecting channel (20); the steam in the steam cavity (32) is used to heat the water in the water storage cavity (31) so as to deoxygenate the water in the water storage cavity (31); the water storage cavity (31) is in communication with the main cavity (11), so that the gas and / or water in the water storage cavity (31) flows into the main cavity (11).

2. The steam generator according to claim 1, characterized in that: The steam generator further comprises a filter (40) arranged in the generating shell (10); the main cavity (11) and the air outlet cavity (12) are separated by the filter (40); the main cavity (11) and the air outlet cavity (12) are connected via mesh holes of the filter (40); when the steam formed in the main cavity (11) flows into the air outlet cavity (12) through the filter (40), the filter (40) filters the steam and separates gas and liquid.

3. The steam generator according to claim 1, characterized in that: The steam generator further comprises an air pump (21) arranged on the connecting channel (20), so that part of the steam in the air outlet cavity (12) is drawn into the connecting channel (20) under the action of the air pump (21).

4. The steam generator according to claim 1, characterized in that: Ventilation holes (331) are provided on adjacent surfaces of the water storage chamber (31) and the steam chamber (32), so that the steam in the steam chamber (32) can pass through the vent holes (331) to disturb the water in the water storage chamber (31), thereby increasing the turbulence of the water in the water storage chamber (31).

5. The steam generator according to claim 1, characterized in that: The upper end of the water storage chamber (31) is open to communicate with the main chamber (11); and / or A preset opening (34) is provided on the side wall of the water storage chamber (31) so as to communicate with the main chamber portion (11), thereby allowing water in the water storage chamber (31) to flow into the main chamber portion (11) through the preset opening (34).

6. The steam generator according to claim 1, characterized in that: The bottom wall of the water storage chamber (31) is arranged to be inclined relative to a horizontal plane, and a preset opening (34) is arranged on a side wall connected to the lower end of the bottom wall of the water storage chamber (31), so that water in the water storage chamber (31) can flow into the main chamber (11) through the preset opening (34).

7. The steam generator according to claim 1, characterized in that: The steam chamber (32) comprises a first chamber portion (3201) and a second chamber portion (3202), and the second end of the connecting channel (20) is in communication with the first chamber portion (3201); The second cavity portion (3202) comprises a plurality of cavity segments (3203), and the distribution direction of the plurality of cavity segments (3203) is perpendicular to the distribution direction of the first cavity portion (3201) and the second cavity portion (3202); two adjacent cavity segments (3203) are separated by a guide portion (35); The plurality of cavity segments (3203) include a middle cavity segment (3205) and two cavity segment groups located on both sides of the middle cavity segment (3205); the second cavity portion (3202) includes two cavity portion units; the two cavity segment groups are arranged in one-to-one correspondence with the two cavity portion units, and each cavity portion unit includes the middle cavity segment (3205) and the corresponding cavity segment group; Any three adjacent cavity segments (3203) of the cavity unit are respectively the first cavity segment, the second cavity segment and the third cavity segment; the first end of the first cavity segment and the first end of the second cavity segment are separated by the guide portion (35), and the second end of the first cavity segment and the second end of the second cavity segment are connected through the second opening; the second end of the second cavity segment and the second end of the third cavity segment are separated by the guide portion (35), and the first end of the second cavity segment and the first end of the third cavity segment are connected through the first opening; Along the distribution direction of the multiple cavity segments (3203), the two cavity segments (3203) located at the two ends are respectively two end cavity segments (3204); at least one of the two end cavity segments (3204) is connected to the first cavity portion (3201).

8. The steam generator according to claim 1, characterized in that: The deoxygenation component (30) further comprises a water collecting chamber (37), wherein a plurality of connecting holes (381) are arranged on the adjacent surface between the water collecting chamber (37) and the water storage chamber (31), and at least a portion of the plurality of connecting holes (381) are distributed in a direction perpendicular to the distribution direction of the water collecting chamber (37) and the water storage chamber (31), so that water in the water collecting chamber (37) flows into the water storage chamber (31) through the plurality of connecting holes (381), and increases the width of the water flow flowing into the water storage chamber (31), so as to form a water film in the water storage chamber (31).

9. The steam generator according to claim 8, characterized in that: The steam generator further comprises a water supply nozzle (50), the nozzle of the water supply nozzle (50) being located in the main cavity (11), and at least part of the water flow sprayed from the nozzle of the water supply nozzle (50) falling into the water collecting cavity (37).

10. The steam generator according to claim 9, characterized in that The steam generator further comprises a liquid blocking portion (60), which is opposite to and spaced from the nozzle of the water supply nozzle (50), so that at least a portion of the water flow sprayed from the nozzle of the water supply nozzle (50) is sprayed onto the liquid blocking portion (60), and at least a portion of the water flow sprayed onto the liquid blocking portion (60) falls into the water collecting chamber (37) under the action of gravity.

11. The steam generator according to claim 10, characterized in that: The liquid blocking portion (60) has a liquid blocking surface, which is arranged toward the nozzle of the water supply nozzle (50); the liquid blocking surface is located above the water inlet of the water collecting chamber (37); along the distribution direction of the water collecting chamber (37) and the water storage chamber (31), the liquid blocking surface is located between the water inlet of the water collecting chamber (37) and the water storage chamber (31).

12. The steam generator according to claim 8, characterized in that The water collecting chamber (37) and the steam chamber (32) are arranged adjacent to each other so that the steam in the steam chamber (32) heats the water in the water collecting chamber (37).

13. The steam generator according to claim 1, characterized in that The steam generator further comprises a water supply nozzle (50), the nozzle of the water supply nozzle (50) being located in the main cavity (11), and the nozzle of the water supply nozzle (50) being used for spraying water.

14. The steam generator according to claim 1, characterized in that The deoxygenation component (30) further comprises a bubbling tube (300), wherein a first end of the bubbling tube (300) is in communication with the steam chamber (32), and a second end of the bubbling tube (300) extends into the water in the main chamber (11), so that the steam in the steam chamber (32) bubbles the water in the main chamber (11) through the bubbling tube (300).

15. The steam generator according to claim 14, characterized in that At least one bubbling hole (301) is provided on the tube wall of the bubbling tube (300), and the bubbling hole (301) is located below the liquid level of the water in the main cavity (11), so that the steam in the bubbling tube (300) can bubble the water in the main cavity (11) through the bubbling hole (301); and / or The bubbling tubes (300) are multiple.

16. The steam generator according to any one of claims 1 to 15, characterized in that: There are a plurality of the deoxygenating components (30) and a plurality of the connecting channels (20), and the plurality of the deoxygenating components (30) and the plurality of the connecting channels (20) are arranged in a one-to-one correspondence.

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