Waste heat recovery device for steam turbine generator

Abstract

The utility model belongs to the technical field of waste heat recovery, and relates to a waste heat recovery device for a steam turbine generator, which comprises a shell, a first partition plate and a second partition plate are fixedly connected in the shell, a water storage tank is arranged in the shell, a liquid level sensor is fixedly connected on the inner surface of the shell, and a water storage tank is arranged in the liquid level sensor. The upper surface of the second partition plate is fixedly connected with a base, the surface of the base is fixedly connected with a small generator, an output shaft of the small generator is fixedly connected with a rotating shaft, and the surface of the rotating shaft is sleeved with a bearing. According to the waste heat recovery device for the steam turbine generator, by arranging the water storage tank, the one-way valve, the small generator, the fan blades, the rotating shaft and the bearing, heat on the surface of the steam turbine generator body can be recovered to heat a water source, so that water vapor is generated to drive the fan blades to rotate, heat power is converted into mechanical energy, and the water vapor is matched with the small generator to generate electricity; and the purpose of waste heat utilization is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste heat recovery, and in particular relates to a waste heat recovery device for a steam turbine generator. Background Art

[0002] A steam turbine generator is a generator driven by a steam turbine. The superheated steam generated by the boiler enters the steam turbine and expands to do work, causing the blades to rotate and drive the generator to generate electricity. The exhaust gas after work is sent back to the boiler for recycling through the condenser, circulating water pump, condensate pump, feed water heating device, etc. During the operation of the steam turbine generator, some heat will still be dissipated through the casing of the steam turbine generator, which will cause heat loss. Utility Model Content

[0003] The utility model provides a waste heat recovery device for a steam turbine generator to solve the technical problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat recovery device for a steam turbine generator, comprising a shell, a first partition plate and a second partition plate are fixedly connected to the interior of the shell, a water storage tank is opened inside the shell, a liquid level sensor is fixedly connected to the inner surface of the shell, a base is fixedly connected to the upper surface of the second partition plate, a small generator is fixedly connected to the surface of the base, a rotating shaft is fixedly connected to the output shaft of the small generator, a bearing is sleeved on the surface of the rotating shaft, a sealing frame is fixedly connected to the surface of the bearing, the sealing frame is fixedly connected to the upper surface of the second fixed plate, a one-way valve is fixedly connected to the interior of the second fixed plate, one end of the one-way valve is fixedly connected to a nozzle, the nozzle is arranged inside the sealing frame, a condenser is fixedly connected to one side of the sealing frame, a return pipe is fixedly connected to the lower surface of the condenser, and a battery is fixedly connected to the inner surface of the shell.

[0005] As a further solution of the utility model: the water storage tank is located inside the space formed by the first partition plate and the second partition plate, and the liquid level sensor is distributed inside the water storage tank.

[0006] As a further solution of the utility model: a through hole is opened on one side of the sealing frame, and the position of the through hole corresponds to the position of the condenser.

[0007] As a further solution of the utility model: a water inlet pipe is fixedly connected to the inside of the shell, one end of the water inlet pipe is fixed to the inside of the second partition plate, one end of the water inlet pipe is connected to an external water supply mechanism, and a one-way valve is provided inside the water inlet pipe and the return pipe.

[0008] As a further solution of the utility model: a control panel is fixedly connected to the outer surface of the shell, the battery is arranged directly above the small generator, and a steam turbine generator body is fixedly connected to the inside of the shell, and the steam turbine generator body is arranged directly below the first partition plate.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. The waste heat recovery device for steam turbine generator is provided with a water storage tank, a one-way valve, a small generator, fan blades, a rotating shaft and a bearing. In actual application, through the cooperation among the above, it can not only recover the heat on the surface of the steam turbine generator body to heat the water source, thereby generating water vapor to drive the fan blades to rotate, so that the heat is converted into mechanical energy, and cooperate with the small generator to generate electricity, so as to achieve the purpose of waste heat utilization. At the same time, the one-way valve is set to be opened only under a certain pressure, so as to achieve the purpose of water vapor pressurization, thereby accelerating the rotation of the fan blades and improving the power generation efficiency.

[0011] 2. The waste heat recovery device for steam turbine generators is provided with a liquid level sensor, a reflux pipe and a condenser. In actual applications, through the cooperation between the above, not only can the water vapor be cooled and recovered to achieve the purpose of water recycling, but also the water source inside the water storage tank can be detected in real time to facilitate timely filling of the water source, thereby avoiding damage to the device due to loss or drying up of the water source during the long-term circulation process, thereby ensuring the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a structural schematic diagram of the utility model in a frontal three-dimensional cross-section;

[0014] Figure 2 It is a schematic diagram of the structure of the utility model in a frontal perspective;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the enlarged structure of small and medium-sized generators;

[0016] In the figure: 1. Shell; 2. Water storage tank; 3. Steam turbine generator body; 4. Base; 5. Small generator; 6. Battery; 7. One-way valve; 8. Nozzle; 9. Water inlet pipe; 10. Fan blades; 11. Sealing frame; 12. Liquid level sensor; 13. Control panel; 14. First partition plate; 15. Second partition plate; 16. Rotating shaft; 17. Bearing; 18. Through hole; 19. Condenser; 20. Reflux pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example

[0019] See also Figure 1-3 The utility model provides the following technical solutions: a waste heat recovery device for a steam turbine generator, comprising a shell 1, a first partition plate 14 and a second partition plate 15 are fixedly connected inside the shell 1, a water storage tank 2 is opened inside the shell 1, a liquid level sensor 12 is fixedly connected to the inner surface of the shell 1, a base 4 is fixedly connected to the upper surface of the second partition plate 15, a small generator 5 is fixedly connected to the surface of the base 4, a rotating shaft 16 is fixedly connected to the output shaft of the small generator 5, a bearing 17 is sleeved on the surface of the rotating shaft 16, a sealing frame 11 is fixedly connected to the surface of the bearing 17, the sealing frame 11 is fixedly connected to the upper surface of the second fixed plate, a one-way valve 7 is fixedly connected inside the second fixed plate, and a nozzle 8 is fixedly connected to one end of the one-way valve 7. By arranging the water storage tank 2, the one-way valve 7, the small generator 5, the fan blades 10, the rotating shaft 16 and the bearing 17, in actual applications, through the cooperation between the above, not only the heat on the surface of the steam turbine generator body 3 can be recovered, but also the heat on the surface of the steam turbine generator body 3 can be recovered. The water source is heated to generate water vapor to drive the fan blades 10 to rotate, so that heat is converted into mechanical energy, and cooperates with the small generator 5 to generate electricity, so as to achieve the purpose of waste heat utilization. At the same time, the one-way valve 7 is set to be opened only under a certain pressure, so as to achieve the purpose of water vapor pressurization, thereby accelerating the rotation of the fan blades 10 and improving the power generation efficiency. The nozzle 8 is arranged inside the sealing frame 11, and a condenser 19 is fixedly connected to one side of the sealing frame 11. The lower surface of the condenser 19 is fixedly connected to a return pipe 20, and the inner surface of the shell 1 is fixedly connected to a battery 6. By arranging a liquid level sensor 12, a return pipe 20 and a condenser 19, in actual applications, through the cooperation between the above, not only can the water vapor be cooled and recovered to achieve the purpose of water source recycling, but also the water source inside the water storage tank 2 can be detected in real time, so as to timely add the water source, avoid the loss of the water source in the long-term circulation process until it dries up, and damage to the device, thereby ensuring the service life of the device.

[0020] Specifically, the water tank 2 is located inside the space formed by the first partition plate 14 and the second partition plate 15 , and the liquid level sensor 12 is distributed inside the water tank 2 .

[0021] Specifically, a through hole 18 is opened on one side of the sealing frame 11 , and the position of the through hole 18 corresponds to the position of the condenser 19 .

[0022] Specifically, a water inlet pipe 9 is fixedly connected to the inside of the shell 1, one end of the water inlet pipe 9 is fixed inside the second partition plate 15, one end of the water inlet pipe 9 is connected to an external water supply mechanism, and a one-way valve 7 is provided inside the water inlet pipe 9 and the return pipe 20.

[0023] Specifically, a control panel 13 is fixedly connected to the outer surface of the shell 1 , the battery 6 is arranged directly above the small generator 5 , and a steam turbine generator body 3 is fixedly connected to the inside of the shell 1 , and the steam turbine generator body 3 is arranged directly below the first partition plate 14 .

[0024] The working principle of the utility model is:

[0025] S1. When the device is in use, since the shell 1 fully wraps the turbine generator body 3, the heat on the surface of the turbine generator body 3 will act on the first partition plate 14, and then water will be added to the water storage tank 2 through the water inlet pipe 9. Then, under the continuous action of heat, the water source begins to evaporate and become water vapor. The one-way valve 7 is set to be pushed open at a certain pressure, so the water source will continue to become water vapor until the pressure in the water vapor can push open the one-way valve 7. The high-pressure water vapor will be sprayed onto the surface of the fan blade 10 through the nozzle 8, and then the fan blade 10 drives the rotating shaft 16 to rotate inside the bearing 17, and the bearing 17 drives the small generator 5 to rotate to generate electricity and store it through the battery 6. The water vapor entering the sealing frame 11 will pass through the through hole 18 after being sprayed into the condenser 19, and then enter the drainage pipe after condensation, and re-enter the water storage tank 2 to evaporate again, so as to achieve the purpose of recycling water and saving water resources.

[0026] S2. Since water loss will certainly occur during the process of circulating evaporative cooling, and the liquid level sensor 12 will detect the water height inside the water storage tank 2 in real time, when it is detected that the water inside the water storage tank 2 is too little, it can be filled in time through the external water supply mechanism to avoid the loss of water until it dries up during the long-term circulation process, which will damage the device and ensure the service life of the device. Since the return pipe 20 and the water inlet pipe 9 are both provided with a one-way valve 7, the return pipe 20 and the water inlet pipe 9 will only inject liquid into the water storage tank 2, and the evaporated water vapor will not be discharged through the return pipe 20 and the water inlet pipe 9.

[0027] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0031] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A waste heat recovery device for a steam turbine generator, comprising a housing (1), characterized in that: A first partition plate (14) and a second partition plate (15) are fixedly connected inside the shell (1), a water storage tank (2) is provided inside the shell (1), a liquid level sensor (12) is fixedly connected to the inner surface of the shell (1), a base (4) is fixedly connected to the upper surface of the second partition plate (15), a small generator (5) is fixedly connected to the surface of the base (4), a rotating shaft (16) is fixedly connected to the output shaft of the small generator (5), a bearing (17) is sleeved on the surface of the rotating shaft (16), and the bearing A sealing frame (11) is fixedly connected to the surface of the housing (17), the sealing frame (11) is fixedly connected to the upper surface of a second fixed plate, a one-way valve (7) is fixedly connected to the interior of the second fixed plate, one end of the one-way valve (7) is fixedly connected to a nozzle (8), the nozzle (8) is arranged inside the sealing frame (11), a condenser (19) is fixedly connected to one side of the sealing frame (11), a return pipe (20) is fixedly connected to the lower surface of the condenser (19), and a storage battery (6) is fixedly connected to the inner surface of the housing (1).

2. The waste heat recovery device for a steam turbine generator according to claim 1, characterized in that: The water storage tank (2) is located inside the space formed by the first partition plate (14) and the second partition plate (15), and the liquid level sensor (12) is distributed inside the water storage tank (2).

3. The waste heat recovery device for a steam turbine generator according to claim 1, characterized in that: A through hole (18) is provided on one side of the sealing frame (11), and the position of the through hole (18) corresponds to the position of the condenser (19).

4. The waste heat recovery device for a steam turbine generator according to claim 1, characterized in that: A water inlet pipe (9) is fixedly connected to the interior of the shell (1), one end of the water inlet pipe (9) is fixed to the interior of the second partition plate (15), one end of the water inlet pipe (9) is connected to an external water supply mechanism, and a one-way valve (7) is provided inside the water inlet pipe (9) and the return pipe (20).

5. The waste heat recovery device for a steam turbine generator according to claim 1, characterized in that: A control panel (13) is fixedly connected to the outer surface of the shell (1), the battery (6) is arranged directly above the small generator (5), and a steam turbine generator body (3) is fixedly connected to the inside of the shell (1), and the steam turbine generator body (3) is arranged directly below the first partition plate (14).

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