An industrial high-speed and high-efficiency steam turbine device

Abstract

The present invention discloses an industrial high-speed, high-efficiency steam turbine device, comprising a steam turbine, a condenser, a water jet vacuum device, a water storage tank, a water pump, a main cooling mechanism, and a pre-cooling mechanism. The condenser receives exhaust gas generated by the steam turbine and cools the exhaust gas into cooling water. The water pump pumps water from the water storage tank into the water jet vacuum device. The water jet vacuum device creates a vacuum environment using the water provided by the water storage tank, drawing residual moisture from the condenser and discharging it back to the water storage tank along with the water. The main cooling mechanism cools the water in the water storage tank. The pre-cooling mechanism pre-cools the water jet vacuum device. The present invention has the beneficial effect of enabling the steam turbine to maintain high speed and high efficiency while maintaining a stable operating state.

Description

Technical Field

[0001] The invention relates to an industrial high-speed and high-efficiency steam turbine device, belonging to the technical field of steam turbines. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam-powered device. High-temperature and high-pressure steam passes through a fixed nozzle and becomes an accelerated airflow, which is then sprayed onto the blades, causing the rotor equipped with the blade rows to rotate and perform external work. Steam turbines are the main equipment in modern thermal power plants.

[0003] When a steam turbine is in operation, it produces exhaust gas, which is cooled by the condenser. The condenser also creates a high vacuum at the turbine exhaust port. The vacuum level of the condenser has a significant impact on the thermal efficiency of the turbine cycle. The vacuum in the condenser is achieved by a water jet vacuum device, which extracts the remaining water vapor in the condenser, thereby creating a vacuum environment in the condenser. However, in the prior art, because the water vapor extracted from the condenser by the water jet vacuum device is relatively high in temperature, long-term operation will cause the temperature of the water jet vacuum device to gradually increase, reducing its extraction performance and efficiency, thereby affecting the operating state of the steam turbine. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an industrial high-speed and high-efficiency steam turbine device, so that the steam turbine can maintain high speed and high efficiency and has a stable operating state.

[0005] The present invention is achieved through the following technical solutions.

[0006] An industrial high-speed and high-efficiency steam turbine device, comprising a steam turbine, a condenser, a water jet vacuum device, a water storage tank, a water pump, a main cooling mechanism, and a pre-cooling mechanism; the condenser is used to receive the exhaust gas generated by the steam turbine and cool the exhaust gas into cooling water; the water pump is used to pump water in the water storage tank into the water jet vacuum device; the water jet vacuum device can form a vacuum environment with the water provided by the water storage tank, and is used to pump the residual water vapor in the condenser into the water storage tank along with the water; the main cooling mechanism is used to cool the water in the water storage tank; the pre-cooling mechanism is used to pre-cool the water jet vacuum device.

[0007] As a further improvement of the present invention, the water-jet vacuum device includes a vacuum chamber, a water inlet chamber, a throat, and a residual air chamber; the first end and the second end of the vacuum chamber are respectively provided with a water inlet and a water outlet; the water inlet chamber is connected to the first end of the vacuum chamber, and a jet nozzle extending into the vacuum chamber is provided at the connection, the jet nozzle constitutes a water inlet, the water inlet chamber is provided with a water pumping input pipe connected to a water storage tank, and the water pump is provided on the water pumping input pipe; the two ends of the throat are respectively connected to the second end of the vacuum chamber and the residual air chamber, and the throat is connected to one end of the vacuum chamber to form a water outlet; the residual air chamber is provided with a water vapor mixing discharge port and a residual air port, and the water vapor mixing discharge port is provided with a water pumping output pipe connected to the water storage tank; the side of the water pump is provided with an air pipe connected to the condenser.

[0008] As a further improvement of the present invention, the pre-cooling mechanism includes a cooling cylinder, a pre-cooling input pipe, and a pre-cooling output pipe; both ends of the cooling cylinder have through holes allowing the throat pipe to pass through, and the cooling cylinder is sleeved outside the throat pipe; the pre-cooling input pipe connects the cooling cylinder and the water pumping input pipe located between the water pump and the water inlet chamber; the pre-cooling output pipe connects the cooling cylinder and the water storage tank.

[0009] As a further improvement of the present invention, a diverter valve is provided at the connection between the pre-cooling input pipe and the water pumping input pipe.

[0010] As a further improvement of the present invention, the inner wall of the cooling cylinder is provided with ribs formed by inward protrusions of the inner wall, which are used to extend the flow path of the water in the cooling cylinder.

[0011] As a further improvement of the present invention, the ribs extend spirally on the inner wall of the cooling cylinder along the length direction of the cooling cylinder.

[0012] As a further improvement of the present invention, a partition plate is provided in the water tank, the bottom end of the partition plate is located at the bottom of the water tank, and a gap is left between the top of the partition plate and the top of the water tank; the partition plate divides the water tank into a hot water area and a cold water area, and the water pumping input pipe and the water pumping output pipe are connected to the cold water area and the hot water area respectively.

[0013] As a further improvement of the present invention, the main cooling mechanism includes at least one cold water pipe, which passes into and out of the water tank and has a portion inside the water tank that is bent at multiple locations.

[0014] As a further improvement of the present invention, a water jet pipe connecting the water inlet and the water outlet is provided in the air pumping chamber, and a plurality of air pumping holes are arranged on the water jet pipe; an air pumping cavity is provided in the air pumping chamber, and a hollow air pumping bin is provided in the air pumping cavity, and the air pumping bin surrounds the water jet pipe and can rotate; the air pumping bin has a plurality of tentacles that are always in sliding contact with the side wall of the air pumping cavity, and two adjacent tentacles, the side wall of the air pumping cavity, and the air pumping bin define an air pumping space, and the air pumping bin is provided with an air intake structure on the bin wall corresponding to each air pumping space, and the air intake structure allows gas to enter the air pumping bin from the air pumping space; the side wall of the air pumping cavity is provided with a plurality of air inlets; the air pipe includes an air intake main pipe and a plurality of air intake branches branched from the air intake main pipe, and the air intake branch pipes are connected to the air inlet.

[0015] As a further improvement of the present invention, the volume of the air pumping space increases and decreases periodically as the air pumping bin rotates, and the air pumping space is connected to the air inlet during the process of increasing volume and disconnected from the air inlet before the volume decreases.

[0016] Beneficial effects of the present invention:

[0017] The water in the water tank is cooled by the main cooling mechanism to reduce the water temperature in the water tank, and the water jetting vacuum device is pre-cooled by the pre-cooling mechanism to reduce the temperature of the water discharged back to the water tank by the water jetting vacuum device, so as to maintain the pumping performance of the water jetting vacuum device; the water jetting vacuum device transports water vapor to each pumping space in a circulating manner, forming a stable air pressure difference between the pumping space and the air inlet, thereby improving the pumping efficiency; combined, it can maintain a high vacuum in the condenser, thereby ensuring that the turbine can maintain a high speed and high efficiency operation state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to help understand the objects and advantages of the present invention, wherein:

[0019] Figure 1 This is a connection diagram of an industrial high-speed, high-efficiency steam turbine device;

[0020] Figure 2 It is a schematic diagram of the structure of the water jet vacuum device and the pre-cooling mechanism;

[0021] Figure 3 It is a cross-sectional schematic diagram of the cooling cylinder;

[0022] Figure 4 Schematic diagram of the structure of the water tank;

[0023] Figure 5 This is a schematic diagram of the structure of the vacuum chamber of the water jet vacuum device;

[0024] Figure 6This is a cross-sectional diagram of the vacuum chamber of the water jet vacuum device. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and implementation examples.

[0026] In this specification, directional terms such as up, down, left, right, front, back, front, back, top, and bottom, which are mentioned or may be mentioned, are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directional terms should not be construed as restrictive.

[0027] Reference Figures 1-6 An industrial high-speed, high-efficiency steam turbine 5 device includes a steam turbine 5, a condenser 6, a water jet vacuum device 1, a water storage tank 2, a water pump 21, a main cooling mechanism 4, and a pre-cooling mechanism 3. The condenser 6 is used to receive the exhaust gas generated by the steam turbine 5 and cool the exhaust gas into cooling water. The water pump 21 is used to pump water from the water storage tank 2 into the water jet vacuum device 1. The water jet vacuum device 1 can form a vacuum environment with the water provided by the water storage tank 2, and is used to pump the residual water vapor in the condenser 6 into the water storage tank 2 and discharge it back to the water storage tank 2 with the water. The main cooling mechanism 4 is used to cool the water in the water storage tank 2, and the pre-cooling mechanism 3 is used to pre-cool the water jet vacuum device 1.

[0028] In the power generation system constructed by the steam turbine 5 device in this embodiment, the exhaust gas generated by the steam turbine 5 during operation is cooled by the condenser 6. The vacuum state of the condenser 6 is formed by the water jet vacuum device 1 extracting the water vapor in the condenser 6. For the steam turbine 5, the vacuum degree of the condenser 6 directly affects the exhaust gas discharge. If the vacuum degree of the condenser 6 decreases, the heat consumption and gas consumption of the steam turbine 5 will increase, and its power generation performance will decrease, thereby causing safety hazards in the high-speed operation of the steam turbine 5. In order to ensure that the steam turbine 5 device in this embodiment can stably maintain high speed and high efficiency, the vacuum degree of the condenser 6 must be guaranteed. The vacuum environment of the condenser 6 is provided by the water jet vacuum device 1. Since the water vapor extracted from the condenser 6 by the water jet vacuum device 1 is at a high temperature, the temperature of the water jet vacuum device 1 will gradually increase, thereby reducing its extraction performance. In this embodiment, the water in the water tank 2 is cooled by the main cooling mechanism 4, thereby lowering the water temperature in the water tank 2, so that the water inlet temperature of the water jetting and air pumping vacuum device 1 is reduced, and then the water jetting and air pumping vacuum device 1 is pre-cooled by the pre-cooling mechanism 3, so that the temperature of the water discharged back to the water tank 2 by the water jetting and air pumping vacuum device 1 is reduced, thereby effectively cooling the water jetting and air pumping vacuum device 1 to maintain its air pumping performance.

[0029] The water jet vacuum device 1 includes a vacuum chamber 11, a water inlet chamber 15, a throat 16, and a residual air chamber 17. The first end 11A and the second end 11B of the vacuum chamber 11 are respectively provided with a water inlet 11a and a water outlet 11b. The water inlet chamber 15 is connected to the first end 11A of the vacuum chamber 11, and a jet nozzle 151 extending into the vacuum chamber 11 is provided at the connection. The jet nozzle 151 constitutes the water inlet 11a. The water inlet chamber 15 is provided with a water pump connected to the water tank 2. The input pipe 18, the water pump is arranged on the water pumping input pipe 18, the two ends of the throat pipe 16 are respectively connected to the second end 11B of the exhaust chamber 11 and the residual air chamber 17, the throat pipe 16 is connected to one end of the exhaust chamber 11 to form a water outlet 11b, the residual air chamber 17 is provided with a water vapor mixing discharge port 171 and a residual air port 172, the water vapor mixing discharge port 171 is provided with a water pumping output pipe 19 connected to the water tank 2, and the side of the water pump 21 is provided with an air pipe 14 connected to the condenser 6.

[0030] The water pump 21 delivers the water in the water tank 2 into the water inlet chamber 15 through the water pumping input pipe 18. The water in the water inlet chamber 15 is sprayed into the air extraction chamber 11 from the water inlet 11a, and then enters the throat 16 from the water outlet 11b. The high-speed water flow forms a vacuum negative pressure environment in the air extraction chamber 11, thereby drawing the water vapor in the condenser 6 into the air extraction chamber 11 and ejecting it with the water flow. The high-speed water flow and the drawn-in water vapor are mixed, and after being expanded by the throat 161, they are discharged back to the water tank 2 from the water vapor mixing discharge port 171 through the water pumping output pipe 19 at a pressure slightly higher than the atmospheric pressure. The excess water vapor in the residual air chamber 17 is discharged from the residual air port 172.

[0031] The pre-cooling mechanism 3 includes a cooling cylinder 31, a pre-cooling input pipe 32, and a pre-cooling output pipe 33. Both ends of the cooling cylinder 31 have through holes that allow the throat 16 to pass through, and the cooling cylinder 31 is sleeved outside the throat 16. A sealing ring can be set at the through hole to prevent water from overflowing the cooling cylinder 31. In addition, the length of the cooling cylinder 31 is as close as possible to the length of the throat 16 to improve the coverage of the pre-cooling for the throat 16. The pre-cooling input pipe 32 connects the cooling cylinder 31 and the water pumping input pipe 18 located between the water pump 21 and the water inlet chamber 15, and the pre-cooling output pipe 33 connects the cooling cylinder 31 and the water storage tank 2. The pre-cooling mechanism 3 and the water jet vacuum device 1 share the water pump 21 to provide water, which can reduce the number of pumps set.

[0032] In this embodiment, the specific positions where the pre-cooling input pipe 32 and the pre-cooling output pipe 33 are connected to the cooling cylinder 31 are close to its two ends, so that water can flow in the cooling cylinder 31 and fully contact the outer wall of the throat 16 for heat exchange, thereby achieving a better pre-cooling effect.

[0033] Furthermore, a diverter valve 34 is provided at the connection between the pre-cooling input pipe 32 and the water pumping input pipe 18. The diverter valve 34 can be used to adjust the water distribution ratio of the water injection vacuum device 1 and the pre-cooling mechanism 3, and the setting can be reasonably adjusted according to actual application conditions.

[0034] For the cooling cylinder 31, the inner wall of the cooling cylinder 31 is provided with ribs 35 formed by the inner wall protruding inward, which are used to extend the flow path of water in the cooling cylinder 31, increase the contact time between the water in the cooling cylinder 31 and the outer wall of the throat 16, thereby further improving its pre-cooling effect.

[0035] Furthermore, the ribs 35 extend spirally on the inner wall of the cooling cylinder 31 along the length direction of the cooling cylinder 31, so that the water flow in the cooling cylinder 31 is in a vortex shape. While being able to extend the flow path of the water flow in the cooling cylinder 31, it can also prevent the water flow from hitting the ribs 35. On the one hand, the collision will produce certain vibrations, which is not conducive to the stable state of the water jet vacuum device 1 during operation. On the other hand, the collision will also generate heat, which is not conducive to the pre-cooling of the throat 16.

[0036] The water tank 2 is provided with a partition plate 22. The bottom end of the partition plate 22 is located at the bottom of the water tank 2, and a gap is left between the top end of the partition plate 22 and the top of the water tank 2. The partition plate 22 divides the water tank 2 into a hot water area 23 and a cold water area 24. The water pumping inlet pipe 18 and the water pumping outlet pipe 19 connect to the cold water area 24 and the hot water area 23, respectively. The water temperature in the cold water area 24 is higher than that in the hot water area 23. The water pumping input pipe 18 pumps the cold water in the cold water area 24 into the water jetting and vacuum device 1 and the pre-cooling mechanism 3. Therefore, the water level of the cold water in the cold water area 24 will gradually decrease. The water pumping output pipe 19 inputs the hot water generated by the water jetting and vacuum device 1 into the hot water area 23, which will cause the water level of the hot water in the hot water area 23 to gradually increase. After it is higher than the top of the partition plate 22, the hot water will continue to and slowly flow into the cold water area 24, so that the temperature difference between the hot water area 23 and the cold water area 24 is maintained, which further reduces the temperature of the water jetting and vacuum device 1.

[0037] The main cooling mechanism 4 includes at least one cold water pipe 41, which penetrates into and out of the water tank 2 and is bent at multiple locations inside the water tank 2. Cooling water flows in the cold water pipe 41, and the hot water in the hot water area 23 and the cold water in the cold water area 24 are continuously cooled.

[0038] For the water-jetting vacuum device 1, a water-jetting pipe 12 is provided in the vacuum chamber 11, and the two ends of the water-jetting pipe 12 are respectively connected to the water inlet 11a and the water outlet 11b. A plurality of evenly distributed vacuum holes 121 are provided on the water-jetting pipe 12, and the water flow is ejected at a high speed from the water inlet 11a, thereby forming a vacuum negative pressure environment around the water-jetting pipe 12.

[0039] The pumping chamber 11 is provided with a pumping cavity S, and the pumping cavity S is provided with a pumping bin 13. The pumping bin 13 is a hollow structure, arranged around the water jet pipe 12 and rotatable. The pumping bin 13 has a plurality of tentacles 131 that can always slide in contact with the side wall of the pumping cavity S. The portion of the pumping bin 13 between two adjacent tentacles 131 is the bin wall. Therefore, the two adjacent tentacles 131, the side wall of the pumping cavity S, and the pumping bin 13 define a pumping space P. The multiple pumping spaces P in the pumping cavity S are all independent enclosed spaces. The pumping bin 13 is provided with an air intake structure 132 on the bin wall corresponding to each pumping space P. The air intake structure 132 allows water vapor to enter the pumping bin 13 from the pumping space P. The side wall of the vacuum chamber S is provided with a plurality of air inlets 11c, which draw water vapor from the condenser 6 through the air pipe 14. When the vacuum chamber 13 rotates, the tentacles 131 pass through the air inlets 11c in sequence. When the previous tentacle 131 corresponding to the vacuum space P passes through the air inlet 11c, the vacuum space P and the air inlet 11c are connected, and the pumped water vapor enters the vacuum space P through the air inlet 11c, and then enters the vacuum chamber 13 through the air intake structure 132. The water vapor entering the vacuum chamber 13 enters the water jetting pipe 12 through the vacuum hole 121 under the action of the vacuum negative pressure environment formed around the water jetting pipe 12, and is ejected with the water flow.

[0040] In this embodiment, the water vapor in the vacuum space P enters the vacuum chamber 13 through the air intake structure 132 under the action of the vacuum negative pressure environment around the water jet pipe 12 and is then extracted by the water jet pipe 12, thereby reducing the internal air pressure of the vacuum space P before the next air intake. When the vacuum space P is connected to the next air inlet 11c, a stable air pressure difference is formed between the vacuum space P and the air inlet 11c, thereby improving the air intake efficiency of the air inlet 11c, and multiple air inlets 11c transport water vapor to each vacuum space P in a circulating manner, thereby comprehensively improving the air extraction efficiency.

[0041] Furthermore, the volume of the air extraction space P increases and decreases periodically as the air extraction chamber 13 rotates, and the air extraction space P is connected to the air inlet 11c during the process of increasing its volume, and is disconnected from the air inlet 11c before decreasing its volume. When the air extraction space P is intaked, the air pressure in the air extraction space P is increased, thereby reducing the pressure difference between the air extraction space P and the air inlet 11c. The continuous increase in the volume of the air extraction space P while intake is occurring will reduce the increase in the air pressure, thereby facilitating the overall air intake of the air extraction space P. The air extraction space P is drawn away by the water jet pipe 12 through the air intake structure 132, which will cause the air pressure in the air extraction space P to drop, thereby reducing the pressure difference between the air extraction space P and the vacuum negative pressure environment around the water jet pipe 12. The periodic reduction in the volume of the air extraction space P will increase the air pressure in the air extraction space P to reduce the drop in the pressure difference. Therefore, under this air intake and exhaust mechanism, the efficiency of air extraction can be further improved.

[0042] In this embodiment, the air intake structure 132 is configured as a pressure relief valve. The pressure relief valve realizes the air flow direction based on the air pressure difference. The air pumping space P continuously increases its internal air pressure when air is taken in. When the air pressure difference between the air pressure of the air pumping space P and the vacuum negative pressure environment around the water jet pipe 12 reaches the threshold of the pressure relief valve, the pressure relief valve opens, allowing the water vapor in the air pumping space P to enter the air pumping chamber 13 and then be pumped away by the water jet pipe 12. The periodic volume reduction of the air pumping space P will extend the opening time of the pressure relief valve. When the air pressure difference is lower than the threshold, the pressure relief valve closes. During the period when the pressure relief valve is closed, the negative pressure vacuum environment around the water jet pipe 12 can be restored to a certain extent, thereby intermittently restoring the air pumping performance of the water jet pipe 12. Therefore, setting the air intake structure 132 as a pressure relief valve can realize intermittent air pumping, which can further improve the air pumping efficiency.

[0043] Since the internal air pressure of the exhaust space P gradually increases during the air intake process, the air pressure difference between the exhaust space P and the air inlet 11c gradually decreases, so the air intake rate of the air inlet 11c gradually decreases. Based on this, the volume change cycle of each of the exhaust spaces P is asynchronous, which can avoid the air intake synchronization of the air inlet 11c.

[0044] As for the air pipe 14, it includes an air intake main pipe 141 and multiple air intake branches 142 branched from the air intake main pipe 141. The air intake branch pipes 142 are connected to the air intake port 11c. Since the air intake of the air intake port 11c is not synchronized, the air intake main pipe 141 alternately transports water vapor to each air intake branch pipe 142. Therefore, the rate of extracting water vapor from the condenser 6 fluctuates less, thereby improving the stability of the air extraction.

[0045] In addition, the number of the air inlets 11c is the same as the number of cycles experienced by the air extraction space P after the air extraction chamber 13 rotates a full circle, so that as the air extraction space P rotates, each time the volume increases and then decreases, it corresponds to an air intake, thereby improving the overall air extraction efficiency.

[0046] In this embodiment, the internal space of the vacuum chamber 13 is not divided. A partition component can also be set in the vacuum chamber 13 corresponding to each tentacle 131. The partition component is in sliding contact with the surface of the water jet pipe 13 to divide the internal space of the vacuum chamber 13 into multiple parts, and they correspond one to one with the vacuum spaces P.

[0047] More specifically, in this embodiment, the exhaust chamber 11 is a cylindrical structure, and a partition 111 is provided inside it. The partition 111 is circular and perpendicular to the central axis of the exhaust chamber 11. The edge of the partition 111 is in sliding contact with the inner surface of the exhaust chamber 11, and the partition 111 can rotate around the central axis of the exhaust chamber 11. The water jet pipe 12 and the exhaust chamber 11 share a common central axis and pass through the partition 111. The exhaust chamber 11 is provided with an oblong shell 112 on the inner surface between the partition 111 and the second end 11B, and the two ends of the shell 112 are connected to the inner surface of the exhaust chamber 11. The shell 112, the partition 111, and the second end 11B constitute the exhaust cavity S, and the shell 112 constitutes the side wall of the exhaust cavity S. The partition 111 is close to the first end 11A, so that the exhaust cavity S occupies most of the space in the exhaust chamber 11. The air extraction chamber 13 is fixed to the surface of the partition 111 facing the second end 11B, and the center of the air extraction chamber 13 is offset from the center of the partition 111. The eccentric position of the air extraction chamber 13 and the shape of the housing 112 can be configured with reference to a rotary engine. The rotation of the partition 111 can drive the air extraction chamber 13 to rotate, and the antenna 131 can slide on the inner wall of the housing 112.

[0048] In this embodiment, the vacuum chamber 13 has a triangular structure, and is provided with three tentacles 131. The vacuum space P is limited to three. The vacuum chamber 13 experiences two volume increases and decreases after rotating a full circle, so the air inlet 11c is provided with two.

[0049] As for the rotation drive method of the partition 111, in this embodiment, a drive motor 111-1 is provided on the first end 11A in the exhaust chamber 11, and the drive motor 111-1 is preferably configured as a reduction motor, or a reducer can be additionally provided. A first transmission wheel 111-2 is provided on the output shaft of the drive motor 111-1, and a second transmission wheel 111-3 surrounding the water jet pipe 12 is provided on the side of the partition 111 facing the first end 11A, and the first transmission wheel 111-2 and the second transmission wheel 111-3 are engaged with each other.

[0050] Finally, it should be noted that the above implementation cases are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above implementation cases, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above implementation cases, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the implementation cases of the present invention.

Claims

1. An industrial high-speed and high-efficiency steam turbine device, characterized in that: It includes a steam turbine, a condenser, a water jet vacuum device, a water storage tank, a water pump, a main cooling mechanism, and a pre-cooling mechanism; the condenser is used to receive the exhaust gas generated by the steam turbine and cool the exhaust gas into cooling water; the water pump is used to pump water in the water storage tank into the water jet vacuum device; the water jet vacuum device can form a vacuum environment with the water provided by the water storage tank, and is used to pump the residual water vapor in the condenser into the water storage tank and discharge it back to the water storage tank with the water; the main cooling mechanism is used to cool the water in the water storage tank; the pre-cooling mechanism is used to pre-cool the water jet vacuum device; The water-jetting vacuum device includes an exhaust chamber, a water inlet chamber, a throat, and a residual air chamber; the first end and the second end of the exhaust chamber are respectively provided with a water inlet and a water outlet; the pre-cooling mechanism includes a cooling cylinder, a pre-cooling input pipe, and a pre-cooling output pipe; both ends of the cooling cylinder have through holes allowing the throat to pass through, and the cooling cylinder is sleeved outside the throat; one end of the pre-cooling input pipe is connected to the cooling cylinder, and the other end is connected to the part of the water pumping input pipe located between the water pumping pump and the water inlet chamber, the water inlet chamber is provided with a water pumping input pipe connected to the water storage tank, and the water pump is arranged on the water pumping input pipe; one end of the pre-cooling output pipe is connected to the cooling cylinder, and the other end is connected to the water storage tank; a water jetting pipe connecting the water inlet and the water outlet is provided in the exhaust chamber, and the water jetting pipe is arranged with a plurality of exhaust holes; an exhaust cavity is provided in the exhaust chamber, and a hollow exhaust bin is provided in the exhaust cavity, and the exhaust bin surrounds the water jetting pipe and can rotate the exhaust bin; the exhaust bin has a plurality of always and exhaust The tentacles are in sliding contact with the side walls of the air cavity, and two adjacent tentacles, the side walls of the air extraction cavity, and the walls of the air extraction bin define an air extraction space. The air extraction bin is provided with an air intake structure on the wall corresponding to each air extraction space, and the air intake structure allows gas to enter the air extraction bin from the air extraction space; the side walls of the air extraction cavity are provided with multiple air inlets; the air inlets draw water vapor from the condenser through the air pipe, and the air pipe includes an air intake main pipe and multiple air intake branches branched by the air intake main pipe, and the air intake branches are respectively connected to the air inlets; the air extraction chamber is a cylindrical structure, and a partition is provided inside it, and the partition is perpendicular to the central axis of the air extraction chamber, and the partition can rotate around the central axis of the air extraction chamber; the water jet pipe passes through the partition, and the air extraction chamber is provided with a shell on the inner surface between the partition and the second end, and the shell, partition, and second end constitute the air extraction cavity, and the air extraction bin is fixed on the side of the partition facing the second end, and the center of the air extraction bin deviates from the center of the partition.

2. The industrial high-speed and high-efficiency steam turbine device according to claim 1, characterized in that: A diverter valve is provided at the connection between the pre-cooling input pipe and the water pumping input pipe.

3. The industrial high-speed and high-efficiency steam turbine device according to claim 1, characterized in that: The inner wall of the cooling cylinder is provided with ribs formed by the inner wall protruding inwardly, which are used to extend the flow path of water in the cooling cylinder.

4. The industrial high-speed and high-efficiency steam turbine device according to claim 3, characterized in that: The ribs extend spirally on the inner wall of the cooling cylinder along the length direction of the cooling cylinder.

5. The industrial high-speed and high-efficiency steam turbine device according to claim 1, characterized in that: A partition plate is provided in the water tank, the bottom end of the partition plate is located at the bottom of the water tank, and a gap is left between the top of the partition plate and the top of the water tank; the residual air chamber is provided with a water vapor mixing discharge port and a residual air port, and the water vapor mixing discharge port is provided with a water pumping output pipe connected to the water tank. The partition plate divides the water tank into a hot water area and a cold water area, and the water pumping input pipe and the water pumping output pipe are connected to the cold water area and the hot water area respectively.

6. The industrial high-speed and high-efficiency steam turbine device according to claim 1, characterized in that: The main cooling mechanism includes at least one cold water pipe, which passes into and out of the water tank and has a plurality of bends in the portion inside the water tank.

7. The industrial high-speed and high-efficiency steam turbine device according to claim 1, characterized in that: The volume of the air pumping space increases and decreases periodically as the air pumping bin rotates, and the air pumping space is connected to the air inlet during the process of increasing the volume and is disconnected from the air inlet before the volume decreases.

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