Water recovery system and method

Abstract

The present invention relates to a water recovery system and method, wherein the water recovery system comprises a cooling pipe (1), a rotating component (2), an air outlet component (3) and a transmission component (4), wherein the inlet (10) of the cooling pipe (1) is used to receive steam to be cooled, the rotating component (2) is configured to rotate under the impact of the steam to be cooled, the air outlet component (3) is configured to output cold air to reduce the temperature of the cooling pipe (1), so that the steam to be cooled condenses in the cooling pipe (1) to form water, and the transmission component (4) is arranged between the rotating component (2) and the air outlet component (3), and the transmission component (4) is configured to transmit the rotational force of the rotating component (2) to the air outlet component (3). The present invention can drive the air outlet component to operate by the energy of the steam to be cooled itself, thereby reducing the temperature of the cooling pipe and condensing the steam to be cooled to form water, thereby realizing self-power supply without the need for external power, thereby effectively saving energy and meeting energy-saving requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of energy machinery, and in particular to a water recovery system and method. Background Art

[0002] A condenser is a heat exchanger that condenses steam from a steam turbine into water. It is also called a rehydrator. Condensers are mainly used in steam turbine power plants and are one of the important equipment in the process flow of thermal power plants and nuclear power plants.

[0003] Depending on the cooling medium, the condensation method of the condenser can be divided into two categories: water-cooled condensation method and air-cooled condensation method.

[0004] The water condensation method is that the exhaust steam of the steam turbine enters the shell through the throat, condenses into water on the cooling tube bundle and collects in the hot well, and is pumped out by the condensate pump. The cooling water (also called circulating water) enters the cooling tube bundle from the inlet water chamber and is discharged from the outlet water chamber.

[0005] The air condensation method is that the air passes horizontally on the outside of the tube bundle with the help of a fan or natural ventilation, and the steam flows inside the tube bundle and is condensed into water.

[0006] However, both the water-cooled condensation method and the air-cooled condensation method have shortcomings:

[0007] (1) Disadvantages of water condensers: water is required as cooling medium, which consumes water resources;

[0008] (2) Disadvantages of air-cooled condensers: Although they do not consume water resources, the use of fans for cooling requires additional power and consumes energy. If there is no external fan and only natural ventilation is used, the condensation effect will be poor.

[0009] As my country's energy conservation, water conservation, and consumption reduction policies become increasingly stringent, the existing water cooling and air condensation methods can no longer meet the increasingly stringent energy conservation and environmental protection requirements. The market has a large number of practical needs for energy-saving and water-saving condensation methods. Therefore, how to save water and energy while achieving a good condensation effect has become a difficult problem facing the industry.

[0010] It should be noted that the information disclosed in the background technology section of the present invention is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as admitting or suggesting in any form that the information constitutes the prior art known to those skilled in the art. The above statements are only used to provide background technology information related to the present application, and do not necessarily constitute the prior art. Summary of the invention

[0011] The embodiments of the present invention provide a water recovery system and method, which can effectively save energy.

[0012] According to one aspect of the present invention, there is provided a water recovery system, comprising:

[0013] a cooling pipe, the inlet of which is used to receive the steam to be cooled;

[0014] a rotating member configured to rotate under the impact of the steam to be cooled;

[0015] an air outlet component configured to output cold air for lowering the temperature of the cooling pipe so that the steam to be cooled condenses in the cooling pipe to form water; and

[0016] The transmission assembly is arranged between the rotating component and the air outlet component, and the transmission assembly is configured to transmit the rotational force of the rotating component to the air outlet component.

[0017] In some embodiments, the rotating component includes a rotating body and blades disposed on the rotating body, and the blades are configured to output the steam to be cooled along the direction of the rotation axis of the rotating component.

[0018] In some embodiments, the cooling tube includes an inlet section disposed adjacent to an inlet of the cooling tube, and the rotating component is disposed inside the inlet section.

[0019] In some embodiments, the cooling pipe includes a cooling section, the steam to be cooled is condensed in the cooling section to form water, and the cooling section is arranged in a spiral shape around a preset axis.

[0020] In some embodiments, the cooling pipe includes a cooling section, the steam to be cooled is condensed in the cooling section to form water, and the air outlet height of the air outlet component is greater than or equal to the height of the cooling section.

[0021] In some embodiments, the water recovery system includes a plurality of air outlet components, and the plurality of air outlet components are circumferentially spaced apart and arranged around the cooling section.

[0022] In some embodiments, the cooling pipe includes an inlet section disposed adjacent to an inlet of the cooling pipe and a cooling section disposed downstream of the inlet section, wherein the inlet section is located above the cooling section.

[0023] In some embodiments, the water recovery system also includes a steam-water separator and a first conveying pipe and a second conveying pipe connected to the steam-water separator, the steam-water separator is connected to the outlet of the cooling pipe, the steam-water separator is configured to perform gas-liquid separation on the fluid condensed by the cooling pipe, the first conveying pipe is connected to the cooling pipe to return the steam separated by the steam-water separator to the cooling pipe, and the second conveying pipe is used to output the water separated by the steam-water separator.

[0024] In some embodiments, the first delivery pipe is in communication with an inlet section disposed adjacent to an inlet of the cooling pipe.

[0025] In some embodiments, the transmission assembly includes a first rotating shaft, a first gear set, a second rotating shaft and a second gear set, the rotating component rotates around the first rotating shaft, the first gear set is arranged between the first rotating shaft and the second rotating shaft, the second gear set is arranged between the second rotating shaft and the air outlet component, and the first rotating shaft and the second rotating shaft are parallel.

[0026] In some embodiments, the first gear set includes a first gear and a second gear meshing with each other, the axle of the first gear is connected to the first rotating shaft, the axle of the second gear is connected to the second rotating shaft, and the axle of the first gear and the axle of the second gear are parallel.

[0027] In some embodiments, the second gear group includes a third gear, a fourth gear and a fifth gear, the fifth gear is meshed with the third gear and the fourth gear at the same time, the axles of the third gear and the fourth gear are connected to the second rotating shaft, the axle of the fifth gear is connected to the driving shaft of the air outlet component, and the axles of the third gear and the fourth gear are perpendicular to the rotating shaft of the fifth gear.

[0028] In some embodiments, the water recovery system further comprises a bracket and a bearing, and an end of the second rotating shaft away from the first gear assembly is mounted on the bracket via the bearing.

[0029] According to another aspect of the present invention, there is provided a water recovery method based on the above water recovery system, comprising:

[0030] The steam to be cooled is used to drive the rotating parts to rotate;

[0031] Transmitting the rotational force of the rotating component to the air outlet component through the transmission assembly; and

[0032] The cold air output by the air outlet component is used to lower the temperature of the cooling pipe, and the steam to be cooled is condensed into water in the cooling pipe.

[0033] Based on the above technical scheme, the embodiment of the present invention can use the steam to be cooled to drive the rotating component to rotate, and then transmit the rotational force of the rotating component to the air outlet component through the transmission component, and then reduce the temperature of the cooling pipe by the cold air output by the air outlet component, so that the steam to be cooled is condensed in the cooling pipe to form water, thereby achieving the effect of using the energy of the steam to be cooled to drive the air outlet component to operate, and then cooling the cooling pipe to condense the steam to be cooled to form water, thereby realizing self-powering, without the need for external power, thereby effectively saving energy and meeting energy-saving needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. 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:

[0035] Figure 1A schematic structural diagram of an embodiment of a water recovery system provided by the present invention.

[0036] Figure 2 One embodiment of the water recovery system provided by the present invention is Figure 1 The top view seen through the AA section.

[0037] In the figure:

[0038] 1. Cooling pipe; 10. Inlet; 11. Inlet section; 12. Cooling section; 2. Rotating parts; 3. Air outlet parts; 4. Transmission assembly; 41. First rotating shaft; 42. First gear set; 421. First gear; 422. Second gear; 43. Second rotating shaft; 44. Second gear set; 441. Third gear; 442. Fourth gear; 443. Fifth gear; 5. Steam-water separator; 6. First delivery pipe; 7. Second delivery pipe; 8. Bracket; 9. Bearing. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "lateral", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0041] like Figure 1 As shown, in some embodiments of the water recovery system provided by the present invention, the water recovery system includes a cooling pipe 1, a rotating component 2, an air outlet component 3 and a transmission assembly 4, the inlet 10 of the cooling pipe 1 is used to receive the steam to be cooled, the rotating component 2 is configured to rotate under the impact of the steam to be cooled, the air outlet component 3 is configured to output cold air to reduce the temperature of the cooling pipe 1 so that the steam to be cooled condenses in the cooling pipe 1 to form water, the transmission assembly 4 is arranged between the rotating component 2 and the air outlet component 3, and the transmission assembly 4 is configured to transmit the rotational force of the rotating component 2 to the air outlet component 3.

[0042] In the embodiment of the present invention, the steam to be cooled is used to drive the rotating component 2 to rotate, and then the rotational force of the rotating component 2 is transmitted to the air outlet component 3 through the transmission component 4, and then the temperature of the cooling pipe 1 is reduced by the cold air output by the air outlet component 3, so that the steam to be cooled is condensed in the cooling pipe 1 to form water, thereby achieving the effect of using the energy of the steam to be cooled to drive the air outlet component 3 to operate, and then cooling the cooling pipe 1 to condense the steam to be cooled to form water, thereby achieving self-power supply without the need for external power, thereby effectively saving energy and meeting energy-saving requirements.

[0043] In an embodiment of the present invention, the cold air output by the air outlet component 3 is used to lower the temperature of the cooling pipe 1 so that the steam to be cooled is condensed in the cooling pipe 1 to form water, and the air-cooled condensation method is used to realize water recovery. Therefore, compared with the water-cooled condensation method, it can effectively save water resources and meet the water-saving needs.

[0044] In addition, the cold air output by the air outlet component 3 can effectively reduce the temperature of the cooling pipe 1, improve the condensation effect of the steam to be cooled, and thus improve the efficiency of water recovery.

[0045] like Figure 2 As shown, in some embodiments, the rotating component 2 includes a rotating body and blades disposed on the rotating body, and the blades are configured to output the steam to be cooled along the direction of the rotation axis of the rotating component 2 .

[0046] By configuring the blades to enable the steam to be cooled to be output along the direction of the rotation axis of the rotating component 2, the steam to be cooled can be easily made to flow downstream to the interior of the cooling pipe 1 for condensation.

[0047] In some embodiments, the cooling pipe 1 includes an inlet section 11 disposed adjacent to an inlet 10 of the cooling pipe 1 , and the rotating component 2 is disposed inside the inlet section 11 .

[0048] By arranging the rotating component 2 inside the inlet section 11 of the cooling pipe 1, a relatively closed space can be formed to prevent the airflow from diffusing everywhere, so that the energy of the steam to be cooled can be accumulated, and the energy of the steam to be cooled can be used to drive the rotating component 2 to rotate, thereby improving the energy utilization rate of the steam to be cooled.

[0049] In some embodiments, the cooling pipe 1 includes a cooling section 12, and the steam to be cooled is condensed in the cooling section 12 to form water. The cooling section 12 is arranged in a spiral shape around a preset axis.

[0050] By arranging the cooling section 12 in a spiral shape around a preset axis, the length of the cooling section 12 can be increased within a limited space, the contact area between the steam to be cooled and the cooling section 12 can be increased, and the residence time of the steam to be cooled in the cooling section 12 can be extended, thereby enhancing the condensation effect and improving the condensation efficiency.

[0051] In some embodiments, the cooling pipe 1 includes a cooling section 12 , the steam to be cooled condenses to form water in the cooling section 12 , and the air outlet height of the air outlet component 3 is greater than or equal to the height of the cooling section 12 .

[0052] The air outlet height of the air outlet component 3 is the height occupied by the cold air output by the air outlet component 3 in the vertical direction. By setting this height to be greater than or equal to the height of the cooling section 12, the cooling range of the air outlet component 3 can cover the upper and lower heights of the cooling section 12, thereby achieving comprehensive cooling from top to bottom, reducing cooling dead corners, and effectively increasing the cooling area.

[0053] In some embodiments, the water recovery system includes a plurality of air outlet components 3 , and the plurality of air outlet components 3 are circumferentially spaced around the cooling section 12 .

[0054] By providing a plurality of air outlet components 3 and arranging the plurality of air outlet components 3 at intervals around the cooling section 12 in the circumferential direction, uniform cooling of the cooling section 12 can be achieved in the circumferential direction, thereby effectively improving the cooling effect and further improving the condensation effect of the steam to be cooled.

[0055] In some embodiments, the cooling pipe 1 includes an inlet section 11 disposed adjacent to an inlet 10 of the cooling pipe 1 and a cooling section 12 disposed downstream of the inlet section 11 , wherein the inlet section 11 is located above the cooling section 12 .

[0056] By arranging the inlet section 11 above the cooling section 12, the steam to be cooled can flow from top to bottom, so that the water formed after condensation can flow downward under the action of its own weight. There is no need to set up special drainage equipment, which effectively reduces costs.

[0057] In some embodiments, the water recovery system also includes a steam-water separator 5 and a first delivery pipe 6 and a second delivery pipe 7 connected to the steam-water separator 5, the steam-water separator 5 is connected to the outlet of the cooling pipe 1, the steam-water separator 5 is configured to perform gas-liquid separation on the fluid condensed by the cooling pipe 1, the first delivery pipe 6 is connected to the cooling pipe 1 to return the steam separated by the steam-water separator 5 to the cooling pipe 1, and the second delivery pipe 7 is used to output the water separated by the steam-water separator 5.

[0058] By setting up the steam-water separator 5, the fluid condensed by the cooling tube 1 can be separated into gas and liquid, and the separated steam is sent back to the cooling tube 1 through the first conveying pipe 6. This separated part of the steam can be returned to the cooling tube 1 for a second condensation recovery, thereby effectively improving the recovery rate and minimizing waste.

[0059] In some embodiments, the first delivery pipe 6 is in communication with an inlet section 11 disposed adjacent to the inlet 10 of the cooling pipe 1 .

[0060] By connecting the first delivery pipe 6 with the inlet section 11, the separated steam can enter the cooling section 12 from the inlet section 11 for condensation, thereby effectively ensuring the condensation length and avoiding the loss of condensation efficiency due to the reduction of the condensation length.

[0061] In some embodiments, the transmission assembly 4 includes a first rotating shaft 41, a first gear set 42, a second rotating shaft 43 and a second gear set 44. The rotating component 2 rotates around the first rotating shaft 41. The first gear set 42 is arranged between the first rotating shaft 41 and the second rotating shaft 43. The second gear set 44 is arranged between the second rotating shaft 43 and the air outlet component 3. The first rotating shaft 41 and the second rotating shaft 43 are parallel.

[0062] By providing the first rotating shaft 41, the first gear set 42, the second rotating shaft 43 and the second gear set 44, the purpose of transmitting the rotating force of the rotating component 2 to the air outlet component 3 can be achieved. Moreover, by switching the two gear sets, the first rotating shaft 41 and the second rotating shaft 43 can be arranged in parallel, which is convenient for the structural arrangement of the rotating component 2 and the air outlet component 3.

[0063] In some embodiments, the first gear set 42 includes a first gear 421 and a second gear 422 meshing with each other, the axle of the first gear 421 is connected to the first rotating shaft 41, the axle of the second gear 422 is connected to the second rotating shaft 43, and the axle of the first gear 421 and the axle of the second gear 422 are parallel.

[0064] By providing the first gear 421 and the second gear 422 meshing with each other, the rotational force of the first rotating shaft 41 can be transmitted to the second rotating shaft 43. The axle of the first gear 421 and the axle of the second gear 422 are arranged in parallel, which can optimize the structural layout and improve the transmission efficiency.

[0065] In some embodiments, there are multiple air outlet components 3, and the number of the second gears 422 is the same as the number of the air outlet components 3. The multiple second gears 422 are all meshed with the first gear 421 to extract power.

[0066] In some embodiments, the second gear group 44 includes a third gear 441, a fourth gear 442 and a fifth gear 443, the fifth gear 443 is meshed with the third gear 441 and the fourth gear 442 at the same time, the axles of the third gear 441 and the fourth gear 442 are connected to the second rotating shaft 43, the axle of the fifth gear 443 is connected to the driving shaft of the air outlet component 3, and the axles of the third gear 441 and the fourth gear 442 are perpendicular to the rotating shaft of the fifth gear 443.

[0067] By providing the third gear 441 , the fourth gear 442 and the fifth gear 443 , the rotational force of the second rotating shaft 43 can be transmitted to the air outlet component 3 , thereby driving the air outlet component 3 to rotate and generate cold air for cooling the cooling pipe 1 .

[0068] The axles of the third gear 441 and the fourth gear 442 are arranged to be perpendicular to the rotation axis of the fifth gear 443, so that the power can be redirected, so that the air outlet direction of the air outlet component 3 can be toward the cooling section 12, thereby effectively improving the cooling efficiency.

[0069] In some embodiments, the water recovery system further includes a bracket 8 and a bearing 9 , and an end of the second rotating shaft 43 away from the first gear set 42 is mounted on the bracket 8 through the bearing 9 .

[0070] By providing the bearing 9, the second rotating shaft 43 can be installed on the bracket 8 through the bearing 9, so that each rotating member is supported on the bracket 8, thereby improving the rotation stability of the rotating member.

[0071] In the embodiment of the present invention, the air outlet component 3 may include a fan or a blower.

[0072] The following is combined with Figure 1 and Figure 2 The structure and working process of an embodiment of the water recovery system of the present invention are described as follows:

[0073] like Figure 1 As shown, the water recovery system includes a cooling pipe 1, a rotating component 2, an air outlet component 3, a transmission assembly 4, a steam-water separator 5, a first delivery pipe 6, a second delivery pipe 7, a bracket 8 and a bearing 9. Among them, the bracket 8 is a frame structure for easy heat dissipation.

[0074] The cooling pipe 1 comprises an inlet section 11 disposed adjacent to the inlet 10 and a cooling section 12 disposed downstream of the inlet section 11. The inlet section 11 is located above the cooling section 12. The cooling section 12 is in a spiral shape.

[0075] like Figure 2 As shown, the inlet section 11 has a circular space, and the rotating component 2 is arranged in the inlet section 11 .

[0076] A plurality of air outlet components 3 are arranged at intervals around the outer circumference of the cooling section 12. The air outlet direction of the air outlet components 3 is toward the cooling section 12.

[0077] The transmission assembly 4 includes a first rotating shaft 41, a first gear set 42, a second rotating shaft 43, and a second gear set 44. The rotating component 2 rotates around the first rotating shaft 41. The first gear set 42 includes a first gear 421 and a second gear 422 that are meshed with each other, the axle of the first gear 421 is connected to the first rotating shaft 41, and the axle of the second gear 422 is connected to the second rotating shaft 43. The second gear set 44 includes a third gear 441, a fourth gear 442, and a fifth gear 443, the fifth gear 443 is meshed with the third gear 441 and the fourth gear 442 at the same time, the axles of the third gear 441 and the fourth gear 442 are both connected to the second rotating shaft 43, and the axle of the fifth gear 443 is connected to the driving shaft of the air outlet component 3.

[0078] The first rotating shaft 41 and the second rotating shaft 43 are both arranged vertically. The first gear 421 and the second gear 422 are both arranged horizontally, and the rotation axis is parallel to the vertical direction. The third gear 441 and the fourth gear 442 are both arranged horizontally, and the rotation axis is parallel to the vertical direction. The fifth gear 443 is arranged vertically, and the rotation axis is parallel to the horizontal direction. The rotation axis of the air outlet component 3 is parallel to the horizontal direction.

[0079] The steam-water separator 5 is connected to the outlet of the cooling pipe 1 , the first delivery pipe 6 is connected to the steam-water separator 5 and the inlet section 11 of the cooling pipe 1 , and the second delivery pipe 7 discharges the liquid separated by the steam-water separator 5 .

[0080] The working process of the water recovery system in this embodiment is as follows:

[0081] The steam to be cooled is conveyed to the inlet section 11 through the inlet 10 of the cooling pipe 1, driving the rotating component 2 located in the inlet section 11 to rotate, and then the steam to be cooled flows downward along the rotating shaft of the rotating component 2 to the cooling section 12; after the rotating component 2 rotates, the power is transmitted to the air outlet component 3 through the transmission component 4, and the air outlet component 3 generates cold air, which blows to the outer surface of the cooling section 12 to reduce the temperature of the cooling section 12. When the steam to be cooled flows in the cooling section 12, it encounters the colder cooling section 12 pipe wall and condenses to form water. The water flows out of the cooling pipe 1 under the action of gravity, enters the steam-water separator 5, and is output through the second delivery pipe 7 to realize water recovery; the fluid to be condensed in the cooling pipe 1 is further separated in the steam-water separator 5, and the separated gas returns to the inlet section 11, and then enters the cooling section 12 to be condensed again, and the separated liquid is output through the second delivery pipe 7 for recovery.

[0082] The embodiments of the present invention realize self-supply of power, do not require additional power, and can effectively save power energy; adopt an air-cooled condensation method, which can effectively save water resources; through the air outlet cooling cooling pipe of the air outlet component, the condensation effect can be effectively improved, thereby solving the "triple" problems of water consumption, energy consumption, and poor cooling effect existing in the existing condensation technology methods.

[0083] Based on the water recovery systems in the above embodiments, the present invention further provides a water recovery method, which comprises:

[0084] Using the steam to be cooled to drive the rotating part 2 to rotate;

[0085] The rotational force of the rotating component 2 is transmitted to the air outlet component 3 through the transmission component 4; and

[0086] The cold air outputted by the air outlet component 3 is used to lower the temperature of the cooling pipe 1 , and the steam to be cooled is condensed in the cooling pipe 1 to form water.

[0087] The positive technical effects of the water recovery system in the above-mentioned embodiments are also applicable to the water recovery method, which will not be described in detail here.

[0088] The above description of various embodiments tends to emphasize the differences between the various embodiments. The same or similar aspects can be referenced to each other, and for the sake of brevity, they will not be repeated herein.

[0089] Those skilled in the art will appreciate that, in the above method of a specific embodiment, the order in which the steps are written does not imply a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of the steps should be determined by their functions and possible internal logic.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that without departing from the principles of the present invention, the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents, and these modifications and equivalent replacements should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A water recovery system, characterized in that: include: A cooling pipe (1) having an inlet (10) for receiving steam to be cooled; A rotating component (2) is configured to rotate under the impact of the steam to be cooled; an air outlet component (3) configured to output cold air for lowering the temperature of the cooling pipe (1), so that the steam to be cooled condenses in the cooling pipe (1) to form water; and A transmission assembly (4) is arranged between the rotating component (2) and the air outlet component (3), and the transmission assembly (4) is configured to transmit the rotational force of the rotating component (2) to the air outlet component (3); The cooling pipe (1) comprises an inlet section (11) arranged adjacent to an inlet (10) of the cooling pipe (1) and a cooling section (12) arranged downstream of the inlet section (11); the rotating component (2) is arranged inside the inlet section (11); the inlet section (11) is located above the cooling section (12); and the inlet (10) is located on the side of the inlet section (11), so that the steam to be cooled is blown toward the rotating component (2) in a direction tangential to the rotation direction of the rotating component (2); The cooling section (12) is arranged in a spiral shape around a preset axis, the steam to be cooled condenses in the cooling section (12) to form water, and the height occupied by the cold air output by the air outlet component (3) in the vertical direction is greater than or equal to the height occupied by the cooling section (12) in the vertical direction; The rotating component (2) comprises a rotating body and blades arranged on the rotating body, wherein the blades are configured to output the steam to be cooled along the direction of the rotating axis of the rotating component (2); The water recovery system comprises a plurality of the air outlet components (3), wherein the plurality of the air outlet components (3) are arranged at intervals in the circumferential direction around the cooling section (12); The water recovery system further comprises a steam-water separator (5) and a first delivery pipe (6) in communication with the steam-water separator (5); the steam-water separator (5) is in communication with the outlet of the cooling pipe (1); the steam-water separator (5) is configured to perform gas-liquid separation on the fluid condensed by the cooling pipe (1); the first delivery pipe (6) is in communication with the cooling pipe (1) to return the steam separated by the steam-water separator (5) to the cooling pipe (1); The first delivery pipe (6) is in communication with an inlet section (11) arranged adjacent to the inlet (10) of the cooling pipe (1); the delivery direction of the first delivery pipe (6) is tangential to the rotation direction of the rotating component (2), so that the steam separated by the steam-water separator (5) is blown toward the rotating component (2) along a direction tangential to the rotation direction of the rotating component (2); and the delivery direction of the first delivery pipe (6) is opposite to the input direction of the steam to be cooled entering the cooling pipe (1) through the inlet (10); The transmission assembly (4) comprises a first rotating shaft (41), a first gear set (42), a second rotating shaft (43) and a second gear set (44); the rotating component (2) rotates around the first rotating shaft (41); the first gear set (42) is arranged between the first rotating shaft (41) and the second rotating shaft (43); the second gear set (44) is arranged between the second rotating shaft (43) and the air outlet component (3); the first rotating shaft (41) and the second rotating shaft (43) are parallel; the first gear set (42) comprises a first gear (421) and a second gear (422) meshing with each other; the wheel shaft of the first gear (421) is connected to the first rotating shaft (41); the second gear (422) is connected to the first rotating shaft (41); the The axle of the first gear (421) is connected to the second rotating shaft (43), and the axle of the first gear (421) is parallel to the axle of the second gear (422); the second gear set (44) comprises a third gear (441), a fourth gear (442) and a fifth gear (443), the fifth gear (443) is meshed with the third gear (441) and the fourth gear (442) at the same time, the axles of the third gear (441) and the fourth gear (442) are both connected to the second rotating shaft (43), the axle of the fifth gear (443) is connected to the driving shaft of the air outlet component (3), and the axles of the third gear (441) and the fourth gear (442) are both perpendicular to the rotating shaft of the fifth gear (443).

2. The water recovery system according to claim 1, characterized in that: It also comprises a second delivery pipe (7) connected to the steam-water separator (5), wherein the second delivery pipe (7) is used to output the water separated by the steam-water separator (5).

3. The water recovery system according to claim 1, characterized in that: It also includes a bracket (8) and a bearing (9), and an end of the second rotating shaft (43) away from the first gear set (42) is mounted on the bracket (8) via the bearing (9).

4. A water recovery method based on the water recovery system according to any one of claims 1 to 3, characterized in that: include: Using the steam to be cooled to drive the rotating part (2) to rotate; The rotational force of the rotating component (2) is transmitted to the air outlet component (3) through the transmission component (4); and The cold air output by the air outlet component (3) is used to lower the temperature of the cooling pipe (1), and the steam to be cooled is condensed in the cooling pipe (1) to form water.

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