CN110864579A - A power plant steam turbine hydrophobic heat recovery device - Google Patents

Abstract

The invention discloses a hydrophobic heat recovery device for a steam turbine in a power plant, comprising a device casing and a steam turbine. The bottom of the device casing is connected with a steam pipe 1, one side of the steam pipe is connected with a steam pipe 2, and the other end of the steam pipe 2 is connected with the steam turbine. The second steam pipe is provided with the third solenoid valve, and the steam turbine is passed into the device casing through the second steam pipe and the first steam pipe. In the present invention, the heat recovery device is arranged in the closed casing. After the steam releases heat and turns into water, it falls into the device casing. Inside, it automatically flows out through the recovery pipe 1 and the recovery pipe 2, so as to recover the water for recycling. By passing the cooling into several heat recovery pipes, the hot steam in the device shell heats the cooling water in the pipes, recovering heat, and many The rotating heat recovery tube can increase the heat contact surface and speed up the heating efficiency, thereby improving the heat recovery rate and recovery efficiency of the steam.

Description

A power plant steam turbine hydrophobic heat recovery device

technical field

The invention relates to a recovery device, in particular to a power plant steam turbine hydrophobic heat recovery device.

Background technique

Steam turbine is referred to as steam engine, also known as steam turbine engine, which is a rotary steam power device. Convert it into mechanical energy, drive the coaxial generator to rotate, and cut the magnetic induction line to generate the electric energy used in our daily life.

At present, thermal power plants at home and abroad are equipped with heat recovery devices to recover the residual heat in the steam. However, the traditional heat recovery devices have low heat recovery rate and low recovery efficiency, and the water after steam cooling cannot be recovered. . Therefore, those skilled in the art provide a power plant steam turbine hydrophobic heat recovery device to solve the problems raised in the above background art.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a power plant steam turbine hydrophobic heat recovery device to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A power plant steam turbine hydrophobic heat recovery device, comprising a device casing and a steam turbine. The bottom of the device casing is connected with a first steam pipe, one side of the steam pipe is connected with a second steam pipe, the other end of the second steam pipe is connected with the steam turbine, and the second steam pipe is connected to the upper part of the steam pipe. The third solenoid valve is set, and the steam turbine is passed into the casing of the device through the second steam pipe and the first steam pipe. Several heat recovery branch pipes are evenly arranged, and several heat recovery branch pipes are fixedly connected between the two turntables, and the hot steam in the device shell rises to the top of the device shell to heat the cooling water in the heat recovery pipe;

Both ends of the heat recovery main pipe are rotatably connected with sealed bearings, and several connecting pipes are arranged between the two sealed bearings and the turntable. The connecting pipes are connected between the heat recovery main pipe and several heat recovery branch pipes, and one side of the two sealed bearings is respectively A water inlet pipe and a hot water pipe are connected, a solenoid valve is arranged on the hot water pipe, a transmission gear ring is fixedly installed on the peripheral side of the turntable, and a transmission gear meshing with it is arranged under the transmission gear ring. The side is fixedly connected with a mounting plate, the mounting plate is fixedly mounted with a motor, the motor shaft of the motor runs through the casing of the device, the transmission gear is fixedly installed on the motor shaft of the motor, and the motor shaft of the motor is driven by the transmission gear 1 and the transmission gear ring to make the turntable and the transmission gear ring. The heat recovery pipe rotates, and a recovery pipe 1 is connected to the bottom side of the device casing.

As a further solution of the present invention: the other side of the first steam pipe is connected with the second recovery pipe, and the second recovery pipe is located below the second steam pipe. The water generated by the heat release of the hot steam falls inside the device, and the water is discharged and recovered through the recovery pipe 1 and the recovery pipe 2.

As a further solution of the present invention: the hot water pipe, the recovery pipe 1, the motor shaft of the motor, the water inlet pipe, the steam pipe 1 and the external connection of the device casing are respectively provided with a sealing ring 1, a sealing ring 2, and a sealing ring 5. , seal ring four and seal ring three.

As a further solution of the present invention, a cooling pipe is connected to the upper side of the water inlet pipe, a second solenoid valve is arranged on the cooling pipe, and a cooling water tank is connected to the upper end of the cooling pipe. The second solenoid valve makes the cooling water in the cooling water tank flow out, and flows into the heat recovery main pipe and several heat recovery branch pipes through the cooling pipe and the water inlet pipe.

As a further solution of the present invention, a temperature sensor is fixedly installed on the inner side of the heat recovery main pipe. When the temperature in the heat recovery main pipe reaches the preset value, the temperature sensor sends a signal, and the solenoid valve opens to discharge the heated water in the heat recovery pipe.

As a further solution of the present invention, the shape of the device shell is a rectangular parallelepiped, and the inner wall of the device shell is provided with a thermal insulation layer.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, by passing cooling into several heat recovery tubes, the hot steam in the device shell heats the cooling water in the tubes and recovers the heat. Multiple rotating heat recovery tubes can increase the thermal contact surface and speed up the heating efficiency, thereby improving the heating efficiency. Heat recovery rate and recovery efficiency of steam.

2. In the present invention, the heat recovery device is arranged in a closed shell, and after the steam releases heat into water, it falls into the device shell, and flows out automatically through recovery pipe 1 and recovery pipe 2, thereby recovering water for recycling.

Description of drawings

FIG. 1 is a schematic structural diagram of a steam turbine hydrophobic heat recovery device in a power plant.

Figure 2 is a schematic side view of the structure of a turntable in a steam turbine hydrophobic heat recovery device in a power plant.

FIG. 3 is a schematic diagram of the overall structure of the appearance of a steam turbine hydrophobic heat recovery device in a power plant.

In the figure: 1. Device shell; 2. Steam turbine; 3. Cooling water tank; 4. Solenoid valve 1; 5. Sealing ring 1; 6. Main heat recovery pipe; 7. Turntable; 8. Heat recovery branch pipe; 10. Transmission gear 1; 11. Transmission gear ring; 12. Cooling pipe; 13. Hot water pipe; 14. Connecting pipe; 15. Recovery pipe 1; 16. Sealing ring 2; 17. Temperature sensor; 18. Sealing ring 3 ;19, solenoid valve two; 20, water inlet pipe; 21, sealing ring three; 22, motor; 23, mounting plate; 24, sealing ring four; 25, recovery pipe two; 26, steam pipe one; 27, solenoid valve three ; 28, two steam pipes; 29, sealed bearings.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIGS. 1 to 3, in an embodiment of the present invention, a steam-turbine hydrophobic heat recovery device in a power plant includes a device casing 1 and a steam turbine 2. The bottom of the device casing 1 is connected with a steam pipe 1 26, and the device casing 1 is in the shape of a cuboid. And the inner wall of the device shell 1 is provided with a thermal insulation layer 9, one side of the steam pipe 1 26 is connected with a second steam pipe 28, the other end of the second steam pipe 28 is connected with the steam turbine 2, and a solenoid valve 3 27 is arranged on the second steam pipe 28, and the steam turbine 2 passes through the steam. The second pipe 28 and the first steam pipe 26 lead into the device casing 1 , and the other side of the first steam pipe 26 is connected with the second recovery pipe 25 , and the second recovery pipe 25 is located below the second steam pipe 28 . The water generated by the heat release of the hot steam falls inside the device, and the water is discharged and recovered through the first recovery pipe 15 and the second recovery pipe 25. The inner top of the device shell 1 is provided with a heat recovery main pipe 6, and both ends of the heat recovery main pipe 6 are fixedly installed on the periphery. There is a turntable 7, and a number of heat recovery branch pipes 8 are evenly arranged on the circumference of the heat recovery main pipe 6, and several heat recovery branch pipes 8 are fixedly connected between the two turntables 7, and the hot steam in the device shell 1 rises to the inner top of the device shell 1, Heating the cooling water in the heat recovery pipe;

Both ends of the heat recovery main pipe 6 are rotatably connected with sealed bearings 29, and a plurality of connecting pipes 14 are provided between the two sealed bearings 29 and the turntable 7, and the connecting pipes 14 are connected to the heat recovery main pipe 6 and several heat recovery branch pipes 8. One side of the two sealed bearings 29 is respectively connected with a water inlet pipe 20 and a hot water pipe 13, the hot water pipe 13 is provided with a solenoid valve 14, the upper side of the water inlet pipe 20 is connected with a cooling pipe 12, and the cooling pipe 12 is provided with an electromagnetic valve Valve two 19, the upper end of the cooling pipe 12 is connected with the cooling water tank 3. The second solenoid valve 19 makes the cooling water in the cooling water tank 3 flow out, and flows into the heat recovery main pipe 6 and several heat recovery branch pipes 8 through the cooling pipe 12 and the water inlet pipe 20. The inner side of the heat recovery main pipe 6 is fixedly installed with a temperature sensor 17. When the temperature in the heat recovery main pipe 6 reaches the preset value, the temperature sensor 17 sends a signal, the solenoid valve 4 is opened, and the water heated in the heat recovery pipe is discharged. 11. There is a transmission gear 10 meshing with it under the transmission gear ring 11, a mounting plate 23 is fixedly connected to the outer side of the device casing 1, and a motor 22 is fixedly mounted on the mounting plate 23, and the motor shaft of the motor 22 penetrates the device casing 1, The transmission gear 10 is fixedly installed on the motor shaft of the motor 22. The motor shaft of the motor 22 is driven by the transmission gear 10 and the transmission gear ring 11 to make the turntable 7 and the heat recovery pipe rotate. The bottom side of the device casing 1 is connected with a recovery pipe 1. 15. The outer connections of the hot water pipe 13, the recovery pipe 1 15, the motor shaft of the motor 22, the water inlet pipe 20, the steam pipe 1 26 and the device shell 1 are respectively provided with a sealing ring 1 5, a sealing ring 2 16, and a seal. Ring five 24, sealing ring four 21 and sealing ring three 18.

The working principle of the present invention is:

When the device is used for heat recovery and drainage, the steam turbine 2 passes into the device casing 1 through the second steam pipe 28 and the first steam pipe 26, and the control device controls the second solenoid valve 19 to make the cooling water in the cooling water tank 3 flow out, and the cooling water passes through the cooling water. The pipe 12 and the water inlet pipe 20 flow into the heat recovery main pipe 6 and several heat recovery branch pipes 8, fill them up, and the hot steam in the device shell 1 rises to the inner top of the device shell 1 to heat the cooling water in the heat recovery pipe, while the remote The control device controls the motor 22 to work. The motor shaft of the motor 22 is driven by the transmission gear 10 and the transmission gear ring 11 to make the turntable 7 and the heat recovery pipe rotate. When the temperature in the heat recovery main pipe 6 reaches the preset value, the temperature sensor 17 sends Signal, the remote control device controls the solenoid valve one 4 to open, and discharges the heated water in the heat recovery pipe. At the same time, the water generated by the heat release of the hot steam falls inside the device, and the water is discharged and recovered through the recovery pipe one 15 and the recovery pipe two 25. .

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (6)

1. A power plant steam turbine hydrophobic heat recovery device, comprising a device casing (1) and a steam turbine (2), wherein the bottom of the device casing (1) is connected with a steam pipe one (26), and the steam pipe one (26) One side is connected with the second steam pipe (28), the other end of the second steam pipe (28) is connected with the steam turbine (2), the second steam pipe (28) is provided with a solenoid valve three (27), and the inner top of the device casing (1) A heat recovery main pipe (6) is provided, and turntables (7) are fixedly installed on the peripheral sides of both ends of the heat recovery main pipe (6). The recovery branch pipes (8) are fixedly connected between the two turntables (7); Sealed bearings (29) are rotatably connected to both ends of the heat recovery main pipe (6), a plurality of connecting pipes (14) are arranged between the two sealed bearings (29) and the turntable (7), and the connecting pipes (14) are connected Between the heat recovery main pipe (6) and several heat recovery branch pipes (8), one side of the two sealed bearings (29) is respectively connected with a water inlet pipe (20) and a hot water pipe (13), and the hot water pipe (13) is provided with a water inlet pipe (20) and a hot water pipe (13). There is a solenoid valve (4), a transmission gear ring (11) is fixedly installed on the peripheral side of the turntable (7), and a transmission gear (10) meshing with it is arranged under the transmission gear ring (11). 1) A mounting plate (23) is fixedly connected to the outer side, and a motor (22) is fixedly mounted on the mounting plate (23). On the motor shaft of the motor (22), a recovery pipe one (15) is connected to the bottom side of the device casing (1). 2. A steam turbine hydrophobic heat recovery device in a power plant according to claim 1, wherein the other side of the first steam pipe (26) is connected with a second recovery pipe (25), and the second recovery pipe (25) is located at the Below steam pipe two (28). 3. The steam-turbine hydrophobic heat recovery device in a power plant according to claim 1, characterized in that the hot water pipe (13), the recovery pipe one (15), the motor shaft of the motor (22), the water inlet pipe (20) ), the external connection between the steam pipe one (26) and the device casing (1) is provided with a seal ring one (5), a seal ring two (16), a seal ring five (24), a seal ring four (21) and a seal Circle three (18). 4. A steam turbine draining heat recovery device in a power plant according to claim 1, characterized in that a cooling pipe (12) is connected to the upper side of the water inlet pipe (20), and a solenoid valve (2) is provided on the cooling pipe (12). (19), a cooling water tank (3) is connected to the upper end of the cooling pipe (12). 5 . The steam-turbine hydrophobic heat recovery device of a power plant according to claim 1 , wherein a temperature sensor ( 17 ) is fixedly installed on the inner side of the heat recovery main pipe ( 6 ). 6 . 6 . The hydrophobic heat recovery device for steam turbines in a power plant according to claim 1 , wherein the device shell ( 1 ) is in the shape of a cuboid, and the inner wall of the device shell ( 1 ) is provided with a thermal insulation layer ( 9 ). 7 .

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