Water spraying and temperature adjusting device for steam turbine of thermal power plant

Abstract

The utility model belongs to the technical field of steam turbine water spray atomization temperature adjustment, particularly relates to a steam turbine water spray temperature adjustment device of a thermal power plant, and aims to solve the problems that the temperature adjustment effect of equipment is poor due to the fact that the cooling effect of the existing equipment on high-temperature steam is poor, and the effect of dispersing and circulating the steam is poor, the following scheme is provided: the steam turbine water spray temperature adjustment device comprises a water storage tank, a temperature adjusting box is fixedly installed on the top of the water storage tank, a motor is fixedly installed on the side face of the temperature adjusting box, an output shaft of the motor is fixedly connected with a first transmission rod, the first transmission rod is rotationally connected with the temperature adjusting box, the temperature adjusting box is connected with a rotating mechanism, and the temperature adjusting box is fixedly connected with a steam inlet pipe and a steam outlet pipe. A second transmission rod is rotationally connected to the temperature adjusting box. The device is easy to operate and convenient to use, the cooling effect of high-temperature steam can be better, the effect of dispersing and circulating water vapor is better, and therefore the temperature adjusting effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam turbine water spray atomization temperature control, in particular to a steam turbine water spray temperature control device for a thermal power plant. Background Art

[0002] In the steam turbine condensing unit, the exhaust steam of the steam turbine will enter the condenser, and the vacuum degree of the condenser is an important factor to ensure the safe and stable operation of the steam turbine. If the steam temperature is too high, it may cause the vacuum of the condenser to be destroyed, forcing the steam turbine to shut down, causing unnecessary economic losses. In order to cool the steam, after the steam enters the exhaust pipe, the existing technology uses an atomizing nozzle to atomize the liquid. After atomization and cooling, the liquid turns into small droplets and is sprayed out in a mist, thereby achieving efficient cooling. However, this method of temperature adjustment by water spraying and atomization can only meet the cooling treatment of water vapor. However, the steam generated by the steam turbine is often too concentrated, and simple atomization treatment cannot dilute the steam. The direct discharge of hot gas into the atmosphere will cause certain pollution and affect environmental governance.

[0003] The existing water spray temperature control device for the steam turbine of a thermal power plant usually has a poor cooling effect on high-temperature steam and a poor effect on the dispersion and circulation of water vapor, resulting in a poor temperature control effect of the equipment. Therefore, we propose a water spray temperature control device for the steam turbine of a thermal power plant. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the existing equipment, that is, the conventional equipment usually has poor cooling effect on high temperature steam and poor effect on dispersing and circulating water vapor, resulting in poor temperature control effect of the equipment, and proposes a water spray temperature control device for a steam turbine in a thermal power plant.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A water spray temperature control device for a steam turbine in a thermal power plant comprises a water storage tank, a temperature control box is fixedly installed on the top of the water storage tank, a motor is fixedly installed on the side of the temperature control box, a first transmission rod is fixedly connected to the output shaft of the motor, the first transmission rod is rotatably connected to the temperature control box, a rotating mechanism is connected to the temperature control box, a steam inlet pipe and a steam outlet pipe are fixedly connected to the temperature control box, a second transmission rod is rotatably connected to the temperature control box, a diversion mechanism is connected to the second transmission rod, and a water pump and a refrigerator are fixedly installed on the water storage tank.

[0007] Preferably, the rotating mechanism comprises two transmission tubes and a spiral tube, the two transmission tubes are rotationally connected to the temperature regulating box, and the spiral tube is fixedly connected to the two transmission tubes.

[0008] Preferably, the diverter mechanism comprises a rotating pipe and a plurality of diverter pipes, the rotating pipe is fixedly connected to the second transmission rod, the rotating pipe is rotatably connected to the steam outlet pipe, and the diverter pipe is fixedly connected to the rotating pipe.

[0009] Preferably, a small gear is fixedly sleeved on the first transmission rod, a large gear is fixedly sleeved on one of the two transmission tubes, and the small gear is meshingly connected with the large gear.

[0010] Preferably, a worm is fixedly sleeved on the first transmission rod, a worm wheel is fixedly sleeved on the second transmission rod, and the worm is meshingly connected with the worm wheel.

[0011] Preferably, a water inlet pipe is rotatably connected to one of the two transmission pipes, and a water outlet pipe is rotatably connected to the other of the two transmission pipes, and both the water inlet pipe and the water outlet pipe are fixedly connected to the water tank.

[0012] Preferably, the water inlet pipe is connected to a water pump, and a plurality of diversion holes are fixedly provided on the diversion pipe.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] (1) In this solution, since a large gear, a transmission tube and a spiral tube are provided, the large gear drives the corresponding transmission tube to rotate, and the transmission tube drives the spiral tube to rotate, thereby making the cooling efficiency of the spiral tube higher.

[0015] (2) In this scheme, since a rotating tube and a diversion tube are provided, the second transmission rod drives the rotating tube to rotate, and the rotating tube drives the diversion tube to rotate, and the water vapor flows through the diversion hole, thereby better dispersing and circulating the water vapor, which is beneficial to the subsequent atomization cooling of the water vapor.

[0016] The utility model is simple to operate and easy to use, can achieve a better cooling effect on high-temperature steam, and has a better effect of dispersing and circulating water vapor, thereby improving the temperature regulating effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a steam turbine water spray temperature regulating device for a thermal power plant proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the side view of the thermostat box of a water spray thermostat for a thermal power plant steam turbine proposed by the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the connection structure of a worm and a worm wheel of a steam turbine water spray temperature regulating device in a thermal power plant.

[0020] Figure 4 The utility model is a schematic diagram of the shunt pipe structure of a steam turbine water spray temperature regulating device in a thermal power plant.

[0021] In the figure: 1. water storage tank; 2. thermostat; 3. motor; 4. first transmission rod; 5. second transmission rod; 6. worm; 7. worm wheel; 8. small gear; 9. large gear; 10. steam inlet pipe; 11. steam outlet pipe; 12. rotating pipe; 13. diverter pipe; 14. water inlet pipe; 15. water outlet pipe; 16. water pump; 17. spiral pipe; 18. refrigerator; 19. diverter hole; 20. transmission pipe. DETAILED DESCRIPTION

[0022] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0023] Embodiment 1

[0024] Reference Figure 1-Figure 4 A water spray temperature control device for a steam turbine in a thermal power plant comprises a water storage tank 1, a temperature control box 2 is fixedly installed on the top of the water storage tank 1, a motor 3 is fixedly installed on the side of the temperature control box 2, a first transmission rod 4 is fixedly connected to the output shaft of the motor 3, the first transmission rod 4 is rotatably connected to the temperature control box 2, a rotating mechanism is connected to the temperature control box 2, a steam inlet pipe 10 and a steam outlet pipe 11 are fixedly connected to the temperature control box 2, a second transmission rod 5 is rotatably connected to the temperature control box 2, a diversion mechanism is connected to the second transmission rod 5, and a water pump 16 and a refrigerator 18 are fixedly installed on the water storage tank 1.

[0025] In this embodiment, the rotating mechanism includes two transmission pipes 20 and a spiral tube 17. The two transmission pipes 20 are rotatably connected to the temperature control box 2. The spiral tube 17 is fixedly connected to the two transmission pipes 20. The diversion mechanism includes a rotating pipe 12 and multiple diversion pipes 13. The rotating pipe 12 is fixedly connected to the second transmission rod 5, and the rotating pipe 12 is rotatably connected to the steam outlet pipe 11. The diversion pipe 13 is fixedly connected to the rotating pipe 12.

[0026] In this embodiment, a small gear 8 is fixedly sleeved on the first transmission rod 4, a large gear 9 is fixedly sleeved on one of the two transmission tubes 20, and the small gear 8 is meshingly connected with the large gear 9, a worm 6 is fixedly sleeved on the first transmission rod 4, and a worm wheel 7 is fixedly sleeved on the second transmission rod 5, and the worm 6 is meshingly connected with the worm wheel 7.

[0027] In this embodiment, one of the two transmission pipes 20 is rotatably connected to the water inlet pipe 14, and the other of the two transmission pipes 20 is rotatably connected to the water outlet pipe 15. The water inlet pipe 14 and the water outlet pipe 15 are both fixedly connected to the water tank 1.

[0028] In this embodiment, the water inlet pipe 14 is connected to the water pump 16 , and a plurality of diversion holes 19 are fixedly formed on the diversion pipe 13 .

[0029] In the utility model, when working, high-temperature steam is first connected to the steam inlet pipe 10, so that the high-temperature steam flows into the temperature regulating box 2 through the steam inlet pipe 10, and then the motor 3 and the water pump 16 are turned on. The water pump 16 sends the cold water in the water storage tank 1 into the spiral tube 17 through the water inlet pipe 14 and the transmission pipe 20 to cool the high-temperature steam in the temperature regulating box 2, and returns to the water storage tank 1 through the water outlet pipe 15. The output shaft of the motor 3 drives the first transmission rod 4 to rotate, and the first transmission rod 4 drives the small gear 8 to rotate. The small gear 8 drives the large gear 9 through the meshing connection with the large gear 9. The large gear 9 rotates, and the large gear 9 drives the corresponding transmission tube 20 to rotate, and the transmission tube 20 drives the spiral tube 17 to rotate, so that the cooling efficiency of the spiral tube 17 is higher. At the same time, the first transmission rod 4 drives the worm 6 to rotate, and the worm 6 drives the worm wheel 7 to rotate through the meshing connection with the worm wheel 7, and the worm wheel 7 drives the second transmission rod 5 to rotate, and the second transmission rod 5 drives the rotating tube 12 to rotate, and the rotating tube 12 drives the diverter tube 13 to rotate, and the water vapor circulates through the diverter hole 19, so as to better disperse and circulate the water vapor, which is beneficial to the subsequent atomization cooling of the water vapor.

[0030] Embodiment 2

[0031] The difference between the second embodiment and the first embodiment is that a water recovery mechanism is provided on the temperature regulating box 2, so as to provide cold water for the post-treatment spraying, thereby improving the utilization rate of water.

[0032] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A water spray temperature control device for a steam turbine in a thermal power plant, comprising a water storage tank (1), characterized in that: A thermostatic box (2) is fixedly mounted on the top of the water storage tank (1), a motor (3) is fixedly mounted on the side of the thermostatic box (2), a first transmission rod (4) is fixedly connected to the output shaft of the motor (3), the first transmission rod (4) is rotatably connected to the thermostatic box (2), a rotating mechanism is connected to the thermostatic box (2), a steam inlet pipe (10) and a steam outlet pipe (11) are fixedly connected to the thermostatic box (2), a second transmission rod (5) is rotatably connected to the thermostatic box (2), a diversion mechanism is connected to the second transmission rod (5), and a water pump (16) and a refrigerator (18) are fixedly mounted on the water storage tank (1).

2. A water spray temperature control device for a steam turbine in a thermal power plant according to claim 1, characterized in that: The rotating mechanism comprises two transmission tubes (20) and a spiral tube (17); the two transmission tubes (20) are rotationally connected to the temperature regulating box (2); and the spiral tube (17) is fixedly connected to the two transmission tubes (20).

3. A water spray temperature control device for a steam turbine in a thermal power plant according to claim 2, characterized in that: The flow dividing mechanism comprises a rotating pipe (12) and a plurality of flow dividing pipes (13); the rotating pipe (12) is fixedly connected to the second transmission rod (5), the rotating pipe (12) is rotatably connected to the steam outlet pipe (11), and the flow dividing pipe (13) is fixedly connected to the rotating pipe (12).

4. A water spray temperature control device for a steam turbine in a thermal power plant according to claim 3, characterized in that: A small gear (8) is fixedly sleeved on the first transmission rod (4), and a large gear (9) is fixedly sleeved on one of the two transmission tubes (20), and the small gear (8) is meshingly connected with the large gear (9).

5. A water spray temperature control device for a steam turbine in a thermal power plant according to claim 4, characterized in that: A worm (6) is fixedly sleeved on the first transmission rod (4), a worm wheel (7) is fixedly sleeved on the second transmission rod (5), and the worm (6) is meshingly connected with the worm wheel (7).

6. A water spray temperature control device for a steam turbine in a thermal power plant according to claim 5, characterized in that: One of the two transmission pipes (20) is rotatably connected to a water inlet pipe (14), and the other of the two transmission pipes (20) is rotatably connected to a water outlet pipe (15), and both the water inlet pipe (14) and the water outlet pipe (15) are fixedly connected to the water storage tank (1).

7. A water spray temperature control device for a steam turbine in a thermal power plant according to claim 6, characterized in that: The water inlet pipe (14) is in communication with a water pump (16), and a plurality of diversion holes (19) are fixedly provided on the diversion pipe (13).

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