Steam generator

Abstract

The utility model provides a steam generator. The steam generator comprises a generating shell, a connecting channel and a deoxidizing assembly arranged in a main cavity. 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] This utility model relates to the field of steam generator technology, and more specifically, to a steam generator. Background Technology

[0002] Horizontal tube flooded evaporators have gradually become the core component of high-temperature steam heat pump units due to their low cost, simple structure, high stability, and large cooling capacity. When operating as a steam generator, the liquid water outside the heat exchange tubes is heated into high-temperature steam by the high-temperature refrigerant inside the tubes, while external feedwater continuously enters the shell side to replenish the water volume.

[0003] In the aforementioned process, the quality of the shell-side water largely determines the durability and safety of the steam generator. Excessive oxygen content in the feedwater can cause corrosion. When the corrosion level reaches 2% to 5%, it is sufficient to create pitting on the inner wall of the equipment, further exacerbating the accumulation of deposits, accelerating under-deposit corrosion, and ultimately leading to perforation, bursting, and scrapping. Therefore, feedwater deoxygenation is an essential and crucial process in steam production systems.

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

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

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

[0007] Existing conventional steam generator systems require an additional independent thermal deaeration system, which is generally large in size and has many pipelines. This increases the complexity of the system to a certain extent and makes it difficult to achieve the goal of equipment miniaturization. At the same time, the high-temperature steam generated does not participate in the circulation after completing the deaeration of the feedwater, resulting in steam waste. Utility Model Content

[0008] The main objective of this invention is to provide a steam generator to solve the problems of complex steam generator systems and steam waste in the prior art.

[0009] To achieve the above objectives, this utility model provides a steam generator, comprising: a generating shell, including a main chamber and an outlet chamber, the main chamber and the outlet chamber being connected to allow steam generated in the main chamber to flow into the outlet chamber and then out of the outlet chamber; a connecting channel, the first end of which is connected to the outlet chamber; a deoxygenation assembly disposed within the main chamber; the deoxygenation assembly including an adjacent water storage chamber and a steam chamber; the second end of the connecting channel being connected to the steam chamber, allowing some steam in the outlet chamber to enter the steam chamber through the connecting channel; the steam in the steam chamber being used to heat the water in the water storage chamber to deoxygenate the water in the water storage chamber; the water storage chamber being connected to the main chamber, allowing gas and / or water in the water storage chamber to flow into the main chamber.

[0010] Furthermore, the steam generator also includes a filter screen installed inside the generating shell. The main chamber and the outlet chamber are separated by the filter screen, and the main chamber and the outlet chamber are connected by the mesh of the filter screen, so that when the steam generated in the main chamber flows into the outlet chamber 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 installed on the connecting channel, so that, under the action of the air pump, part of the steam in the outlet chamber is drawn into the connecting channel.

[0012] Furthermore, ventilation holes are provided on the 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 ventilation 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 pre-set opening is provided on the side wall of the water storage cavity to communicate with the main cavity, so that the water in the water storage cavity flows into the main cavity through the pre-set 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 chamber through the preset opening.

[0016] Further, the steam chamber includes a first chamber and a second chamber, with the second end of the connecting channel communicating with the first chamber; the second chamber includes multiple chamber segments, the distribution direction of which is perpendicular to the distribution direction of the first and second chambers; adjacent chamber segments are separated by a flow guide; the multiple chamber segments include an intermediate chamber segment and two chamber segment groups located on both sides of the intermediate chamber segment; the second chamber includes two chamber units; the two chamber segment groups are arranged one-to-one 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 a chamber unit are respectively the first chamber segment, the second chamber segment, and the third chamber segment; the first end of the first chamber segment and the first end of the second chamber segment are separated by a flow guide, and the second end of the first chamber segment and the second end of the second chamber segment are connected by a second opening; the second end of the second chamber segment and the second end of the third chamber segment are separated by a flow guide, and the first end of the second chamber segment and the first end of the third chamber segment are connected by a first opening; along the distribution direction of the multiple chamber segments, the two chamber segments at both ends are respectively two end chamber segments; at least one of the two end chamber segments is connected with the first chamber.

[0017] Furthermore, the deaeration assembly also includes a water collection chamber, and a plurality of connecting holes are provided on the adjacent surfaces between the water collection chamber and the water storage chamber. At least a portion of the plurality of connecting holes are distributed in a direction perpendicular to the distribution direction of the water collection chamber and the water storage chamber, so that water in the water collection chamber flows into the water storage chamber through the plurality of connecting holes and increases the width of the water flow 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 which is located inside the main chamber, and at least a portion of the water flow ejected from the nozzle falls into the water collection chamber.

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

[0020] Furthermore, the liquid-blocking part has a liquid-blocking surface, which is positioned facing the nozzle of the water supply nozzle; the liquid-blocking surface is located above the water inlet of the water collection chamber; along the distribution direction of the water collection chamber and the water storage chamber, the liquid-blocking surface is located between the water inlet of the water collection chamber and the water storage chamber.

[0021] Furthermore, the water collection 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 collection chamber.

[0022] Furthermore, the steam generator also includes a water supply nozzle, the nozzle of which is located inside the main chamber and is used to spray water.

[0023] Furthermore, the deaeration assembly also includes a bubble tube, the first end of which is connected to the steam chamber, and the second end of which extends into the water in the main chamber, so that the steam in the steam chamber bubblees the water in the main chamber through the bubble tube.

[0024] Furthermore, at least one bubbling hole is provided on the wall of the bubbling tube, and the bubbling hole is located below the water level in the main cavity, so that the steam in the bubbling tube can bubble 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 connection channels, with each deoxygenation component and multiple connection channels being set up in a one-to-one correspondence.

[0027] According to the technical solution of this utility model, the steam generator includes a generating shell, a connecting channel, and a deoxygenation assembly; the generating shell includes a main chamber and an outlet chamber, which are connected to each other so that the steam generated in the main chamber flows into the outlet chamber and then flows out from the outlet chamber; the first end of the connecting channel is connected to the outlet chamber; the deoxygenation assembly is disposed in the main chamber; the deoxygenation assembly includes an adjacent water storage chamber and a steam chamber; the second end of the connecting channel is connected to the steam chamber so that some of the steam in the outlet chamber 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 to deoxygenate the water in the water storage chamber; the water storage chamber is connected to the main chamber so that the gas and / or water in the water storage chamber flows into the main chamber.

[0028] By integrating the deaerator components within the steam generator, the system size and complexity can be significantly reduced, and the high-temperature steam can be recycled, effectively reducing steam waste. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

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

[0031] Figure 2 It shows Figure 1 Longitudinal sectional view of the steam generator in the middle;

[0032] Figure 3 It shows Figure 1 An enlarged structural diagram of the deaerator assembly in the steam generator;

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

[0034] Figure 5 It shows Figure 4 A schematic diagram of the composition and structure of the deoxygenation component in the system;

[0035] Figure 6 It shows Figure 5 A schematic diagram of the deoxygenation component after the first partition has been removed;

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

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

[0038] 10. Generator shell; 11. Main cavity; 12. Exhaust cavity; 121. Exhaust section; 122. Exhaust 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. Deaeration assembly; 31. Water storage chamber; 311. First side plate; 312. Second side plate; 313. Third side plate; 32. Steam chamber; 3201. First cavity section; 3202. Second cavity section; 3203. Cavity segment; 3204. End cavity segment; 3205. Middle cavity segment; 321. Fourth side plate; 322. Fifth side plate; 323. Sixth side plate; 324. Seventh side plate; 3241. Connecting port; 325. First bottom plate; 26. Second base plate; 327. First cover plate; 328. Eighth side plate; 329. Second cover plate; 33. First partition; 331. Vent hole; 34. Pre-set opening; 35. Guide section; 36. Second partition; 361. Third opening; 37. Water collection chamber; 371. Ninth side plate; 373. Tenth side plate; 38. Third partition; 381. Connecting hole; 39. Fourth partition; 300. Bubble tube; 301. Bubble hole;

[0041] 40. Filter screen; 50. Water supply nozzle; 60. Liquid baffle; 71. First heat exchange tube; 72. Second heat exchange tube. Detailed Implementation

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] This utility model provides a steam generator; please refer to [reference needed]. Figures 1 to 7 The steam generator includes a generating shell 10, a connecting channel 20, and a deaerator assembly 30. The generating shell 10 includes a main chamber 11 and an outlet chamber 12, which are connected to each other so that the steam generated in the main chamber 11 flows into the outlet chamber 12 and then flows out of the outlet chamber 12. The deaerator assembly 30 is disposed in the main chamber 11. The deaerator assembly 30 includes an adjacent water storage chamber 31 and a steam chamber 32. The first end of the connecting channel 20 is connected to the outlet chamber 12, and the second end of the connecting channel 20 is connected to the steam chamber 32. The steam chamber 32 is connected so that some of the steam in the steam 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, to deoxygenate by means of 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 during the deoxygenation of 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 feedwater with steam. During the heating process, the partial pressure of water vapor on the water surface gradually increases, while the partial pressure of other gases gradually decreases, and the gases in the water are continuously separated out.

[0047] Specifically, the deaerator assembly 30 is a built-in deaerator assembly; the steam generator of this application is a built-in deaerator steam generator.

[0048] In this application, the steam generator also includes a filter screen 40; the filter screen 40 is disposed inside the generating shell 10, and the main chamber 11 and the outlet chamber 12 are separated by the filter screen 40, and the main chamber 11 and the outlet chamber 12 are connected by the mesh of the filter screen 40; when the steam generated in the main chamber 11 flows into the outlet chamber 12 through the filter screen 40, the filter screen 40 filters the steam and further separates the gas and liquid.

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

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

[0051] In this application, the steam generator also includes an air pump 21 installed on the connecting channel 20, so that under the action of the air pump 21, part of the steam in the outlet chamber 12 is drawn into the connecting channel 20 and then into the steam chamber 32.

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

[0053] In this application, a vent hole 331 is provided on the 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 through the vent hole 331, so that the steam in the steam chamber 32 can disturb the water in the water storage chamber 31 through the vent hole 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, multiple vent holes 331 are provided on the adjacent surfaces of the water storage chamber 31 and the steam chamber 32, and the vent holes 331 are tiny openings.

[0055] Specifically, the deaeration assembly 30 includes a first partition 33, which separates the water storage chamber 31 and the steam chamber 32; that is, the first partition 33 is used to form both the water storage chamber 31 and the steam chamber 32; and a vent 331 is provided on the first partition 33.

[0056] Optionally, the first partition 33 is a plate-like 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 cavity 31, that is, the upper plate surface of the first partition 33 forms the bottom wall of the water storage cavity 31; the lower surface of the first partition 33 forms the top wall of the steam cavity 32, that is, the lower plate surface of the first partition 33 forms the top wall of the steam cavity 32.

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

[0059] Optionally, the water storage cavity 31 has a trough-shaped structure.

[0060] In this application, a preset opening 34 is provided on the side wall of the water storage cavity 31 so that the water storage cavity 31 can communicate with the main cavity 11 through the preset opening 34, thereby allowing water in the water storage cavity 31 to flow into the main cavity 11 through the preset opening 34.

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

[0063] Optionally, the deaeration assembly 30 includes a first side plate 311 and a second side plate 312 disposed opposite to each other. The deaeration assembly 30 also includes a third side plate 313, which is disposed between the first end of the first side plate 311 and the first end of the second side plate 312. The first side plate 311, the second side plate 312 and the third side plate 313 are all disposed 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 form a water storage cavity 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 deaeration assembly 30 includes a fourth side plate 321, a fifth side plate 322, a sixth side plate 323, and a seventh side plate 324 connected sequentially and end-to-end. The fourth side plate 321 and the sixth side plate 323 are arranged opposite each other, and the fifth side plate 322 and the seventh side plate 324 are arranged opposite each other. The deaeration assembly 30 also includes a first bottom plate 325, a second bottom plate 326, the aforementioned seventh side plate 324, a first cover plate 327, an eighth side plate 328, a second cover plate 329, the aforementioned first partition 33, and the aforementioned fifth side plate 322, all connected sequentially and end-to-end. The eighth side plate 328 and the fifth side plate 322 are both arranged opposite to the seventh side plate 324. The first cover plate... Plate 327 and the second cover plate 329 are both disposed opposite to the second bottom plate 326, and the first partition 33 is disposed opposite to the first bottom plate 325; the fourth side plate 321 and the sixth side plate 323 are both disposed 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 the steam chamber 32.

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

[0066] In this application, the steam chamber 32 includes a first chamber 3201 and a second chamber 3202, and the second end of the connecting channel 20 is connected to the first chamber 3201.

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

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

[0069] In each cavity unit, any three adjacent cavity segments 3203 are respectively a first cavity segment, a second cavity segment, and a 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 by 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 by a first opening.

[0070] Along the distribution direction of the multiple cavity segments 3203, the two cavity segments 3203 located at both ends are two end cavity segments 3204; at least one of the two end cavity segments 3204 is connected to the first cavity 3201.

[0071] In the specific implementation process, some of the steam in the outlet chamber 12 flows into the first chamber 3201 through the connecting channel 20, then into the end chamber 3204, and then sequentially flows through each chamber 3203. This increases the flow time of the steam in the steam chamber 32, thereby increasing the heat exchange effect between the steam in the steam chamber 32 and the water in the water storage chamber 31, and increasing the disturbance effect of the steam in the steam chamber 32 on the water in the water storage chamber 31, thus enhancing the deoxygenation effect of the water in the water storage chamber 31.

[0072] Figure 6 The arrow in the image indicates the direction of steam flow within the second cavity 3202. Figure 6 Both end cavities 3204 are connected to the first cavity 3201.

[0073] Specifically, one end of the end cavity segment 3204 is connected to the first cavity 3201, and the other end of the end cavity segment 3204 is connected to the adjacent cavity segment 3203.

[0074] Optionally, the flow guide 35 is a plate-like 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 segment 3202 to form a second opening between the second end of the guide portion 35 and the cavity wall of the second cavity segment 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 segment 3202 to form a first opening between the first end of the guide portion 35 and the cavity wall of the second cavity segment 3202.

[0076] Specifically, the first cavity 3201 and the second cavity 3202 are separated by a 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 apart from the cavity wall of the steam cavity 32 to form a third opening 361 between the end of the second partition 36 and the cavity wall of the steam cavity 32, so that the end cavity segment 3204 communicates with the first cavity 3201 through the third opening 361. That is, there may be one or two third openings 361.

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

[0078] In this application, the deaeration assembly 30 also includes a water collection chamber 37. A plurality of connecting holes 381 are provided on the adjacent surfaces between the water collection chamber 37 and the water storage chamber 31. At least a portion of the plurality of connecting holes 381 are distributed along a preset direction, which is perpendicular to the distribution direction of the water collection chamber 37 and the water storage chamber 31, so that water in the water collection chamber 37 flows into the water storage chamber 31 through the plurality of connecting holes 381, and increases the width of the water flow into the water storage chamber 31 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] Water in the water collection chamber 37 flows into the water storage chamber 31 through multiple connecting holes 381, which divides the water in the water collection chamber 37 into multiple water streams, thereby quickly forming a thin water film.

[0080] By increasing the width of the water flow into the water storage chamber 31, the heat exchange effect between the steam in the steam chamber 32 and the water in the water storage chamber 31 can be increased. Secondly, the disturbance effect of the steam in the steam chamber 32 on the water in the water storage chamber 31 can be increased. Thirdly, the contact area between the water in the water storage chamber 31 and the steam in the main chamber 11 can be increased, thereby increasing the heat exchange effect of the steam in the main chamber 11 on 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 improved.

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

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

[0083] Optionally, in each group of connecting holes, the diameter of the multiple connecting holes 381 gradually decreases along the direction close to the bottom wall of the water storage cavity 31.

[0084] Specifically, the water collecting cavity 37 and the water storage cavity 31 are separated by a third partition 38; multiple connecting holes 381 are provided on the third partition 38.

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

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

[0087] Optionally, the deaeration assembly 30 includes a ninth side plate 371, the aforementioned eighth side plate 328, a tenth side plate 373, and the aforementioned third partition 38 connected in sequence and 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 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 tenth side plate 373, the third partition 38, and the second cover plate 329 together form a water collection cavity 37.

[0088] In this 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 deaeration assembly 30 also includes a fourth partition 39, which separates the water collection chamber 37 and the steam chamber 32.

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

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

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

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

[0094] Optionally, the upper end of the water collection cavity 37 is open.

[0095] Specifically, a communication port 3241 is provided on the cavity wall of the steam chamber 32, and the second end of the connecting channel 20 is connected to the communication port 3241.

[0096] Specifically, the connecting port 3241 is located 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; the tenth side plate 373, the second side plate 312 and the sixth side plate 323 are the same plate.

[0098] Optionally, in this application, 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 chamber 3201, and the water collection chamber 37 is located above the second chamber 3202.

[0099] In this application, the steam generator also includes a water supply nozzle 50, the nozzle of which is located inside the main cavity 11 and 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 using spraying or misting to replenish water into the main chamber 11 can increase the contact area between the feedwater and the steam in the main chamber 11, which is beneficial to the thermal deoxygenation effect of the steam on the feedwater.

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

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

[0103] In this application, at least a portion of the water jet ejected from the nozzle of the water supply nozzle 50 falls into the water collection chamber 37.

[0104] Specifically, the upper end of the water collection chamber 37 has a water inlet so that at least a portion of the water flow ejected from the nozzle of the water supply nozzle 50 falls into the water collection chamber 37 through the water inlet.

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

[0106] Specifically, the nozzle of the water supply nozzle 50 is located above the water inlet of the water collection chamber 37; for example, the nozzle of the water supply nozzle 50 is located diagonally above the water inlet of the water collection chamber 37.

[0107] In this application, the steam generator also includes a liquid-blocking part 60, which is opposite to and spaced apart 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 part 60, and at least a portion of the water flow sprayed onto the liquid-blocking part 60 falls into the water collection chamber 37 under the action of gravity.

[0108] Specifically, the liquid-blocking part 60 has a liquid-blocking surface, which is positioned facing the nozzle of the water supply nozzle 50. At least a portion of the water flow ejected from the nozzle of the water supply nozzle 50 is sprayed onto the liquid-blocking surface of the liquid-blocking part 60, and at least a portion of the water flow sprayed onto the liquid-blocking surface of the liquid-blocking part 60 falls into the water collection cavity 37 under the action of gravity.

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

[0110] Optionally, the liquid-repellent part 60 has a plate-like structure, and one plate surface of the liquid-repellent part 60 is a liquid-repellent surface.

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

[0112] Specifically, the liquid-blocking part 60 is fixed on the inner wall of the generating shell 10.

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

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

[0115] It should be noted that bubbling the water in the main cavity 11 serves two purposes. First, the steam in the bubbling tube 300 enters the water in the main cavity 11, allowing the steam and water to further contact and exchange heat, thus carrying away dissolved oxygen and non-condensable gases from the water. Second, bubbling increases the disturbance to the water in the main cavity 11, which not only enhances the deoxygenation effect by increasing the heat exchange effect, but also enhances the deoxygenation effect by disturbing the gases in the water.

[0116] In this application, at least one bubbling hole 301 is provided on the wall of the bubbling tube 300. All bubbling holes 301 on the bubbling tube 300 are located below the water level 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. This can increase the bubbling effect.

[0117] Specifically, the first end of the bubbling tube 300 is connected to the second cavity 3202. Further, the first end of the bubbling tube 300 is connected to the intermediate cavity 3205.

[0118] Optionally, when a plurality of bubbling holes 301 are provided on the 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 connected to 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 extends vertically.

[0122] Optionally, the deaerator assembly 30 includes a plurality of bubble tubes 300.

[0123] Optionally, the multiple bubble tubes 300 of the deoxygenation assembly 30 are distributed along the length of the intermediate cavity section 3205.

[0124] Optionally, in this application, the steam generator further includes a connecting pipe 201, the cavity of which is a connecting channel 20.

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

[0126] In this application, the generating shell 10 also includes a third cavity 13, a fourth cavity 14 and a fifth cavity 15, with the third cavity 13 and the fifth cavity 15 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 set of heat exchange tubes and a second set of heat exchange tubes. The first set of heat exchange tubes includes at least one first heat exchange tube 71, and the second set of heat exchange tubes includes at least one second heat exchange tube 72. Both the first set of heat exchange tubes and the second set of heat exchange tubes are 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 chamber 13 is used to introduce a high-temperature heat exchange medium; the high-temperature heat exchange medium in the third chamber 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 chamber 11 so that the water in the main chamber 11 vaporizes 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 chamber 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 chamber 11 again; the heat exchange medium in the second heat exchange tube 72 flows into the fifth chamber 15, and then flows out from the fifth chamber 15.

[0129] Because a high-temperature heat exchange medium is continuously introduced into the first heat exchange tube 71, the heat exchange medium flowing from the first heat exchange tube 71 into the fourth cavity 14 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, which becomes a liquid medium after flowing 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 set of heat exchange tubes is located above the second set 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 chamber 11 and the third chamber 13, and to separate the main chamber 11 and the fifth chamber 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 to and communicates with the first connecting port, so that the first end of the first heat exchange tube 71 communicates with the third chamber 13 through the first connecting port. The first end of the second heat exchange tube 72 is connected to and communicates with the second connecting port, so that the first end of the second heat exchange tube 72 communicates with the fifth chamber 15 through the second connecting port.

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

[0136] Specifically, the steam generator also includes a seventh partition 18, which is used to separate the third chamber 13 and the fifth chamber 15.

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

[0138] Optionally, the fifth partition 16 extends to the outside of the generating shell 10 to support the entire steam generator; the sixth partition 17 extends to the outside of the generating shell 10 to support the entire steam generator.

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

[0140] In this application, the venting chamber 12 includes a venting section 121 and a venting channel 122. The main chamber 11 and the venting section 121 are connected so that the steam formed in the main chamber 11 flows into the venting section 121. One end of the venting channel 122 is connected to the venting section 121, and the other end of the venting channel 122 is a venting port. The first end of the connecting channel 20 is connected to the venting channel 122.

[0141] Specifically, the filter 40 is used to separate the main chamber 11 and the exhaust chamber 121.

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

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

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

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

[0146] In the spray deoxygenation section, the water supply is rapidly atomized by the water supply nozzle 50, which greatly increases the contact area between steam and water, enhances the heat exchange between the water supply and the steam formed in the main chamber 11, and ensures the initial deoxygenation effect of the water supply.

[0147] However, due to the small size of the water droplets, the surface tension will prevent oxygen diffusion. Therefore, a water film-forming deoxygenation section was designed. This section disperses the water into a water film, thereby reducing the surface tension of the droplets and achieving the purpose of removing residual oxygen. Specifically, in the film-forming deoxygenation section, the water that has undergone preliminary deoxygenation is blocked by the liquid-blocking part 60 and gathers downward in the water collection chamber 37. It then flows to the water storage chamber 31 through the connecting hole 381 on the third partition part 38, forming a large liquid film on the bottom wall of the water storage chamber 31. The liquid film then collects in the main chamber part 11 through the preset opening 34 and 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 collection chamber 37, achieving the purpose of secondary deoxygenation. In addition, 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 part 33, disturbing the water flow and further enhancing the deoxygenation effect.

[0148] For the bubbling deoxygenation section, since all the bubbling holes 301 on the bubbling tube 300 are below the water level in the main cavity 11, meaning the open 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 chamber 32 will be sprayed into the water in the main cavity 11 through the bubbling holes 301, allowing the steam to further contact with the water, enhancing heat exchange, and carrying away dissolved oxygen and non-condensable gases from the water, achieving the purpose of three-stage deoxygenation. Relying on the above three-stage deoxygenation measures, the deoxygenation effect of the feedwater can be significantly improved; therefore, the steam generator of this application is a built-in high-efficiency deoxygenation steam generator.

[0149] It should be noted that some of the water sprayed from the water supply nozzle 50 will not fall into the water collection chamber 37, but will fall directly into the main chamber 11. This part of the water will only pass through the spray deaeration section and the bubble deaeration section.

[0150] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0151] The steam generator provided by this utility model includes a generating shell 10, a connecting channel 20, and a deaerator assembly 30. The generating shell 10 includes a main chamber 11 and an outlet chamber 12, which are connected to each other so that the steam generated in the main chamber 11 flows into the outlet chamber 12 and then flows out from the outlet chamber 12. The deaerator assembly 30 is disposed in the main chamber 11. The deaerator assembly 30 includes an adjacent water storage chamber 31 and a steam chamber 32. The connecting channel 20... The first end of the 0 is connected to the gas outlet chamber 12, and the second end of the connecting channel 20 is connected to the steam chamber 32, so that some of the steam in the gas 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, to deoxygenate by means of 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.

[0152] The deaerator assembly 30 of this application is located inside the steam generator, forming an integrated unit. This not only significantly reduces the system size and complexity but also enables the recycling of high-temperature steam, effectively reducing steam waste.

[0153] The steam generator of this application: 1. Significantly improves deoxygenation efficiency, effectively reduces the oxygen content of feedwater, and greatly slows down metal oxidation and 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 high-temperature steam generated continues to circulate after completing the deoxygenation of the feedwater, reducing steam waste.

[0154] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

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

[0156] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steam generator, characterized in that, include: The generating shell (10) includes a main cavity (11) and an outlet cavity (12), the main cavity (11) and the outlet cavity (12) are connected so that the steam formed in the main cavity (11) flows into the outlet cavity (12) and then flows out from the outlet cavity (12); A connecting channel (20) is provided, the first end of which is connected to the air outlet chamber (12); A deoxygenation assembly (30) is disposed within the main cavity (11); the deoxygenation assembly (30) includes an adjacent water storage cavity (31) and a steam cavity (32); the second end of the connecting channel (20) is connected to the steam cavity (32) so that some 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) to deoxygenate the water in the water storage cavity (31); 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).

2. The steam generator according to claim 1, characterized in that, The steam generator also includes a filter screen (40) disposed in the generating shell (10). The main chamber (11) and the outlet chamber (12) are separated by the filter screen (40), and the main chamber (11) and the outlet chamber (12) are connected by the mesh of the filter screen (40). When the steam generated in the main chamber (11) flows into the outlet chamber (12) through the filter screen (40), the filter screen (40) filters the steam and separates the gas and liquid.

3. The steam generator according to claim 1, characterized in that, The steam generator also includes an air pump (21) installed on the connecting channel (20) to draw part of the steam in the outlet chamber (12) 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 the adjacent surfaces of the water storage chamber (31) and the steam chamber (32) so that the steam in the steam chamber (32) can disturb the water in the water storage chamber (31) through the ventilation holes (331), 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 cavity (31) is open to communicate with the main cavity (11); and / or The water storage cavity (31) has a preset opening (34) on its side wall to communicate with the main cavity (11), so that the water in the water storage cavity (31) flows into the main cavity (11) through the preset opening (34).

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

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

8. The steam generator according to claim 1, characterized in that, The deoxygenation assembly (30) further includes a water collection chamber (37). A plurality of connecting holes (381) are provided on the adjacent surfaces between the water collection chamber (37) and the water storage chamber (31). At least a portion of the plurality of connecting holes (381) are distributed in a direction perpendicular to the distribution direction of the water collection chamber (37) and the water storage chamber (31), so that water in the water collection chamber (37) flows into the water storage chamber (31) through the plurality of connecting holes (381) and increases the width of the water flow into the water storage chamber (31) 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 also includes a water supply nozzle (50), the nozzle of which is located in the main cavity (11), and at least a portion of the water flow ejected from the nozzle of the water supply nozzle (50) falls into the water collection cavity (37).

10. The steam generator according to claim 9, characterized in that, The steam generator also includes a liquid-blocking part (60), which is opposite to and spaced apart from the nozzle of the water supply nozzle (50) 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 part (60), and at least part of the water flow sprayed onto the liquid-blocking part (60) falls into the water collection chamber (37) under the action of gravity.

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

12. The steam generator according to claim 8, characterized in that, The water collection 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 collection chamber (37).

13. The steam generator according to claim 1, characterized in that, The steam generator also includes a water supply nozzle (50), the nozzle of which is located inside the main cavity (11), and the nozzle of which is used to spray water.

14. The steam generator according to claim 1, characterized in that, The deoxygenation assembly (30) also includes a bubbling tube (300), the first end of which is connected to the steam chamber (32), and the second end of which extends into the water in the main chamber (11) so that the steam in the steam chamber (32) bubblees the water in the main chamber (11) through the bubbling tube (300).

15. The steam generator according to claim 14, characterized in that, The bubbling tube (300) has at least one bubbling hole (301) on its wall. The bubbling hole (301) is located below the water level 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 There are multiple bubbling tubes (300).

16. The steam generator according to any one of claims 1 to 15, characterized in that, There are multiple deoxygenation components (30) and multiple connection channels (20), and the multiple deoxygenation components (30) are arranged in a one-to-one correspondence with the multiple connection channels (20).

Images