Cooling device for steam turbine

Abstract

The cooling device comprises a machine body, a partition plate is fixedly installed in the machine body, an air inlet pipe is arranged on one side of the machine body, one end of the air inlet pipe is inserted into the machine body and penetrates through the partition plate to be inserted below the partition plate, and a plurality of branch pipes are fixedly installed at the bottom of one side of the air inlet pipe. A liquid supplementing pipe is fixedly installed at the top of the machine body, a thermometer is fixedly installed at the top of the machine body, the detection end of the thermometer is inserted into water, and water outlet pipes are fixedly installed on the machine body and located above the partition plate and at the bottom of one side; normal-temperature water is injected to the position above the partition plate, air cooling is replaced by water cooling, water absorbs heat to cool water vapor, the preliminarily cooled water vapor enters the water below the partition plate to be cooled, and moisture in the water vapor can enter the water below the partition plate. Therefore, the water can be heated at the required temperature for other purposes, and the heat utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to a cooling device, in particular to a cooling device for a steam turbine. Background Art

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and is then sprayed onto the blades, causing the rotor with the blade rows to rotate and perform work externally. Steam turbines are the main equipment in modern thermal power plants and are also used in the metallurgical industry, chemical industry, and ship power plants. The steam turbine cooling device plays the role of cooling the steam inside the steam turbine.

[0003] In the prior art with patent number CN219774204U, a steam turbine cooling device is proposed, which performs preliminary cooling by blowing air through a fixed blower fan, and the steam after preliminary cooling is discharged through the air diffusion holes outside the air diffusion single-pass pipe, thereby improving the cooling efficiency.

[0004] However, in the above-mentioned prior art, when the steam is cooled by means of fan cooling, the temperature of the steam will decrease, and when the cooled air is discharged into the water, the water cannot reach the required temperature. Therefore, the present application proposes a cooling device for a steam turbine to solve this problem. Utility Model Content

[0005] The utility model aims to provide a cooling device for a steam turbine to solve the problem that when steam is cooled by a blower fan in the prior art proposed in the above background technology, the temperature of the steam will decrease, and the water cannot reach the required temperature when the cooled air is discharged into the water.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cooling device for a steam turbine comprises a machine body, wherein a partition is fixedly installed inside the machine body, an air intake pipe is arranged on one side of the machine body, one end of the air intake pipe is inserted into the interior of the machine body and penetrates the partition and is inserted below the partition, a plurality of branch pipes are fixedly installed on the bottom of one side of the air intake pipe, a liquid replenishing pipe is fixedly installed on the top of the machine body, a thermometer is fixedly installed on the top of the machine body, a detection end of the thermometer is inserted into water, a water outlet pipe is fixedly installed on the machine body above the partition and on the bottom of one side, a heat conducting plate is embedded in the bottom side of the inner part of the machine body, a semiconductor refrigeration plate is fixedly installed on the bottom of the heat conducting plate, an electromagnetic valve is arranged on the water outlet pipe, and an air outlet is opened on the front side of the machine body and below the partition.

[0008] As a further solution of the utility model: a section of the air inlet pipe located above the partition is of coiled design.

[0009] As a further solution of the utility model: a plurality of heat dissipation fins are fixedly installed on the bottom of the semiconductor refrigeration plate.

[0010] As a further solution of the utility model: support legs are fixedly installed at the four corners of the bottom of the body, a motor is fixedly installed on the rear side of one of the support legs, a screw rod is fixedly installed on the output shaft of the motor, a mounting block is threadedly connected to the outer side of the screw rod, a fan is arranged on the top of the mounting block, the fan is located on the rear side of the heat dissipation fins, a slider is arranged on the top of the fan, a guide groove is fixedly installed on the bottom of the body, and the slider is slidably connected to the guide groove.

[0011] As a further solution of the utility model: one end of the screw rod is located at the rear side of the other supporting leg and is rotatably connected thereto.

[0012] As a further solution of the utility model: a switch is fixedly installed on one side of the body, the solenoid valve, the semiconductor refrigeration plate, the motor and the fan are electrically connected to the switch through wires, and the switch is electrically connected to an external power supply through wires.

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

[0014] 1. The utility model injects normal temperature water into the top of the partition, replaces air cooling with water cooling, and the water absorbs heat to cool the water vapor. The water vapor after preliminary cooling enters the water below the partition for cooling, and the moisture in the water vapor enters the water below the partition, so that the water can be heated to the required temperature for other purposes, thereby improving the utilization rate of heat.

[0015] 2. The utility model cools the heat conducting plate by means of a semiconductor refrigeration sheet, the steam carried by the exhausted air is condensed into water, and the fan is driven by a motor to move back and forth to dissipate heat for the semiconductor refrigeration sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a partial side view of the utility model.

[0018] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle.

[0019] Figure 4 It is the front view in the utility model.

[0020] 1. Machine body; 2. Air inlet pipe; 3. Water outlet pipe; 4. Heat conduction plate; 5. Guide groove; 6. Semiconductor cooling plate; 7. Heat dissipation fins; 8. Air outlet; 9. Screw; 10. Motor; 11. Partition; 12. Thermometer; 13. Mounting block; 14. Liquid replenishment tube; 15. Fan; 16. Slider. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 4 In an embodiment of the utility model, a cooling device for a steam turbine includes a body 1, a partition 11 is fixedly installed inside the body 1, an air intake pipe 2 is arranged on one side of the body 1, one end of the air intake pipe 2 is inserted into the inside of the body 1 and penetrates the partition 11 and is inserted below the partition 11, a plurality of branch pipes are fixedly installed on the bottom of one side of the air intake pipe 2, a liquid replenishing pipe 14 is fixedly installed on the top of the body 1, a thermometer 12 is fixedly installed on the top of the body 1, and the detection end of the thermometer 12 is inserted into the water, a water outlet pipe 3 is fixedly installed on the body 1 above the partition 11 and on the bottom of one side, a heat conducting plate 4 is embedded in the bottom side of the body 1, a semiconductor refrigeration plate 6 is fixedly installed on the bottom of the heat conducting plate 4, an electromagnetic valve is arranged on the water outlet pipe 3, and an air outlet 8 is opened on the front side of the body 1 and below the partition 11.

[0023] The section of the air inlet pipe 2 located above the partition 11 is of a coiled design, which increases the contact area between the air inlet pipe 2 and water and thus improves the efficiency of heat exchange.

[0024] A plurality of heat dissipation fins 7 are fixedly mounted on the bottom of the semiconductor cooling plate 6 to provide heat dissipation for the semiconductor cooling plate 6 .

[0025] Support legs are fixedly installed at the four corners of the bottom of the body 1, and a motor 10 is fixedly installed on the rear side of one of the support legs. A screw rod 9 is fixedly installed on the output shaft of the motor 10, and a mounting block 13 is threadedly connected to the outer side of the screw rod 9. A fan 15 is arranged on the top of the mounting block 13. The fan 15 is located on the rear side of the heat dissipation fins 7, and a slider 16 is arranged on the top of the fan 15. A guide groove 5 is fixedly installed on the bottom of the body 1, and the slider 16 is slidably connected to the guide groove 5. The fan 15 reciprocates left and right to blow toward the heat dissipation fins 7, thereby improving the heat exchange efficiency.

[0026] One end of the screw rod 9 is located at the rear side of the other supporting leg and is rotatably connected thereto.

[0027] A switch is fixedly installed on one side of the body 1, and the solenoid valve, the semiconductor cooling plate 6, the motor 10 and the fan 15 are all electrically connected to the switch through wires, and the switch is electrically connected to an external power supply through wires.

[0028] The motor 10 is a servo-controlled motor.

[0029] The working principle of the utility model is:

[0030] Before the utility model is used, water is replenished above the partition 11 inside the body 1 through the liquid replenishing pipe 14, and the steam inside the steam turbine is introduced into the inside of the air intake pipe 2 through the air pump and other equipment. When the air intake pipe 2 passes above the partition 11, the coiled air intake pipe 2 will fully heat the water above the partition, and the fully heated water is discharged through the water outlet pipe 3. At this time, the effect of preliminary cooling of the water vapor is achieved, and the cooled water vapor enters below the partition 11 again and is blown to the heat transfer plate 4. The moisture in the water vapor remains below the partition 11, and the gas is blown to The temperature of the heat conducting plate 4 is reduced, and the remaining heat in the water vapor is transferred to the heat conducting plate 4, and the heat conducting plate 4 transfers the heat to the cooling surface of the semiconductor refrigeration plate 6, and the heat is further transferred to the heat dissipation fins 7 through the heat dissipation surface of the semiconductor refrigeration plate 6. The motor 10 drives the screw 9 to rotate, thereby driving the fan 15 on the mounting block 13 to reciprocate horizontally under the guidance of the slider 16 to cool the heat dissipation fins 7. The steam carried in the cooled air will be condensed into water, and the gas will be discharged through the outlet 8, thereby improving the utilization rate of the water vapor.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling device for a steam turbine, comprising a body (1), characterized in that: A partition (11) is fixedly installed inside the machine body (1), an air intake pipe (2) is arranged on one side of the machine body (1), one end of the air intake pipe (2) is inserted into the inside of the machine body (1) and penetrates the partition (11) and is inserted below the partition (11), a plurality of branch pipes are fixedly installed at the bottom of one side of the air intake pipe (2), a liquid replenishing pipe (14) is fixedly installed at the top of the machine body (1), a thermometer (12) is fixedly installed at the top of the machine body (1), and the detection end of the thermometer (12) is inserted into the water, a water outlet pipe (3) is fixedly installed on the machine body (1) and located above the partition (11) and at the bottom of one side, a heat conduction plate (4) is embedded in the bottom side of the inner part of the machine body (1), a semiconductor refrigeration plate (6) is fixedly installed at the bottom of the heat conduction plate (4), an electromagnetic valve is arranged on the water outlet pipe (3), and an air outlet (8) is opened on the front side of the machine body (1) and located below the partition (11).

2. A steam turbine cooling device according to claim 1, characterized in that: The section of the air inlet pipe (2) located above the partition (11) is of a coiled design.

3. A steam turbine cooling device according to claim 1, characterized in that: A plurality of heat dissipation fins (7) are fixedly mounted on the bottom of the semiconductor refrigeration plate (6).

4. A steam turbine cooling device according to claim 1, characterized in that: Support legs are fixedly mounted at the four corners of the bottom of the machine body (1), a motor (10) is fixedly mounted on the rear side of one of the support legs, a screw rod (9) is fixedly mounted on the output shaft of the motor (10), a mounting block (13) is threadedly connected to the outer side of the screw rod (9), a fan (15) is arranged on the top of the mounting block (13), the fan (15) is located on the rear side of the heat dissipation fins (7), a slider (16) is arranged on the top of the fan (15), a guide groove (5) is fixedly mounted on the bottom of the machine body (1), and the slider (16) is slidably connected to the guide groove (5).

5. A steam turbine cooling device according to claim 4, characterized in that: One end of the screw rod (9) is located at the rear side of the other supporting leg and is rotatably connected thereto.

6. A steam turbine cooling device according to claim 1, characterized in that: A switch is fixedly mounted on one side of the machine body (1); the solenoid valve, the semiconductor cooling plate (6), the motor (10) and the fan (15) are all electrically connected to the switch via wires; and the switch is electrically connected to an external power source via wires.

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