Thermal power generation waste gas cooling processor

Abstract

The utility model relates to the technical field of thermal power generation, in particular to a thermal power generation waste gas cooling treater which comprises a gas ring, the left end of the gas ring is fixedly provided with a gas inlet pipe in a communicated mode, the upper end of the gas ring is fixedly provided with a gas outlet pipe in a communicated mode, and a connecting pipe is arranged at the upper ends of the gas inlet pipe and the gas ring and located between the gas inlet pipe and the gas outlet pipe. A cooling pipe is wound on the periphery of the air outlet pipe, an air valve is fixedly arranged on the connecting pipe in a communicating mode, a communicating pipe is fixedly arranged at the rear end of the air valve in a communicating mode, and the communicating pipe is communicated with the air inlet pipe on the rear-end air ring; a fixing ring is fixedly arranged in the air outlet pipe, a sliding ring is slidably connected to the fixing ring, a fixing rod is fixedly arranged at the lower end of the sliding ring, and a lifting plate is fixedly arranged at the lower end of the fixing rod; a telescopic rod is connected between the fixed ring and the sliding ring, heat of waste gas flowing at the gas ring and the gas outlet pipe is absorbed through cooling liquid in the cooling pipe and the cooling pipe, the opening size of the electromagnetic valve is adjusted through the actual air flow speed in the gas ring, the cooling effect is kept, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power generation, in particular to a thermal power generation waste gas cooling processor. Background Art

[0002] Thermal power plants are equipped with coal powder feeding systems, boiler combustion systems, steam conveying systems and flue gas emission systems. The exhaust gas emitted from the boiler steam contains a large amount of heat energy. Thermal power plants use top exhaust gas emission devices to discharge it. After being heated by the heater, it is discharged into the smoke shaft following the induced draft fan of the system. The temperature of the exhaust gas is relatively high, and the number of pipes required for the cooling device also increases accordingly. Generally, they extend upward, which increases the height of the device and makes it inconvenient for maintenance. When the pipe radius of the cooling part is increased, the cooling effect of the central area of ​​the pipe is easily reduced. Utility Model Content

[0003] The purpose of the utility model is to provide a thermal power generation exhaust gas cooling processor, which is used to overcome the above-mentioned defects in the prior art.

[0004] According to the utility model, a thermal power generation waste gas cooling processor comprises an air ring distributed front and back, the left end of the air ring is connected and fixedly provided with an air inlet pipe, the upper end of the air ring is connected and fixedly provided with an air outlet pipe, the air inlet pipe and the upper end of the air ring and a connecting pipe are provided between the air inlet pipe and the air outlet pipe, a cooling pipe is wound around the outer periphery of the air ring, a cooling pipe is wound around the outer periphery of the air outlet pipe, an air valve is connected and fixedly provided on the connecting pipe, the rear end of the air valve is connected and fixedly provided with a connecting pipe, the connecting pipe is connected with the air inlet pipe on the rear end of the air ring, the inside of the air ring and located at the inlet A baffle is provided between the air pipe and the connecting pipe, a guide plate is fixed in the air ring, the guide plate is located on the right side of the outlet pipe, a fixed ring is fixed in the outlet pipe, a sliding ring is slidably connected to the fixed ring, a fixed rod is fixed at the lower end of the sliding ring, a lifting plate is fixed at the lower end of the fixed rod, a telescopic rod is connected between the fixed ring and the sliding ring, a pressure sensor is connected at the telescopic rod, an electromagnetic valve is provided in the air ring and between the connecting pipe and the outlet pipe, the pressure sensor is connected to the electromagnetic valve signal, and the upper end of the lifting plate is protruding.

[0005] The beneficial effects of the utility model are:

[0006] The coolant in the cooling pipe and the temperature-reducing pipe absorbs the heat of the exhaust gas flowing in the air ring and the exhaust pipe to improve the cooling effect. The air rings are arranged in a front-to-back distribution, and the exhaust gas is cooled when the intake pipe and the connecting pipe are connected front-to-back. The contact area between the exhaust gas and the pipe wall is increased by adding multiple air rings. The opening size of the solenoid valve is adjusted according to the actual air flow rate in the air ring, so as to even out the air volume in the air ring at different flow rates, thereby maintaining the cooling effect and improving the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the appearance of the utility model;

[0008] Figure 2 This utility model Figure 1 A schematic diagram of a top view structure;

[0009] Figure 3 This utility model Figure 1 A schematic diagram of the front view structure of

[0010] Figure 4 This utility model Figure 1 A side view structural schematic diagram of;

[0011] Figure 5 This utility model Figure 4 Schematic cross-sectional view of AA in the figure;

[0012] Figure 6 This utility model Figure 5 A partial enlarged schematic diagram of the middle lifting plate;

[0013] In the figure:

[0014] 10. Air ring; 11. Air inlet pipe; 12. Air outlet pipe; 13. Connecting pipe; 14. Cooling pipe; 15. Cooling pipe; 16. Air valve; 17. Connecting pipe; 18. Baffle; 19. Guide plate; 20. Lifting plate; 21. Solenoid valve; 22. Sliding ring; 23. Fixed ring; 24. Telescopic rod; 25. Fixed rod. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0016] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there can be an intermediate element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there can be an intermediate element at the same time: Example

[0017] Reference Figure 1-Figure 6 According to an embodiment of the utility model, a thermal power generation waste gas cooling processor comprises an air ring 10 distributed front and back, the left end of the air ring 10 is connected and fixedly provided with an air inlet pipe 11, the upper end of the air ring 10 is connected and fixedly provided with an air outlet pipe 12, the air inlet pipe 11 and the upper end of the air ring 10 and a connecting pipe 13 is provided between the air inlet pipe 11 and the air outlet pipe 12, a cooling pipe 14 is wound around the outer periphery of the air ring 10, a cooling pipe 15 is wound around the outer periphery of the air outlet pipe 12, an air valve 16 is connected and fixedly provided on the connecting pipe 13, a connecting pipe 17 is connected and fixedly provided at the rear end of the air valve 16, the connecting pipe 17 is connected to the air inlet pipe 11 on the rear end air ring 10, the air ring 10 and the air outlet pipe 12 are located inside the air ring 10. A baffle 18 is provided between the air inlet pipe 11 and the connecting pipe 13, a guide plate 19 is fixedly provided in the air ring 10, and the guide plate 19 is located on the right side of the air outlet pipe 12, a fixed ring 23 is fixedly provided in the air outlet pipe 12, a sliding ring 22 is slidably connected to the fixed ring 23, a fixed rod 25 is fixedly provided at the lower end of the sliding ring 22, a lifting plate 20 is fixedly provided at the lower end of the fixed rod 25, a telescopic rod 24 is connected between the fixed ring 23 and the sliding ring 22, a pressure sensor is connected at the telescopic rod 24, a solenoid valve 21 is provided in the air ring 10 and between the connecting pipe 13 and the air outlet pipe 12, the pressure sensor is connected to the solenoid valve 21 signal, and the upper end of the lifting plate 20 is protruding;

[0018] The exhaust gas enters the air ring 10 through the front-end air inlet pipe 11, and the exhaust gas is blocked by the baffle 18, and flows circumferentially through the annular space of the air ring 10, and the exhaust gas gradually flows upward to the guide plate 19. Under the guidance of the guide plate 19, the exhaust gas is located at the lifting plate 20, and flows upward through the upper and lower openings of the exhaust pipe 12. During the flow of the exhaust gas in the air ring 10, the heat is absorbed by the cooling pipe 14 wrapped around the air ring 10. The lifting plate 20 slides upward under the blowing of the exhaust gas, and the upper end of the lifting plate 20 protrudes. The flow velocity at the upper end of the lifting plate 20 is greater than the flow velocity at the lower end. The lifting plate 20 can slide upward, and the air flow velocity at the lifting plate 20 is adjusted to the lifting height of the lifting plate 20. A spring is provided in the telescopic rod 24, and the pressure sensor is connected to the lower end of the telescopic rod 24 through the spring. The telescopic rod is connected, and when the sliding ring 22 slides upward, the lower end telescopic rod 24 slides upward synchronously, so that the spring in the telescopic rod 24 is stressed, and then the force is transmitted to the pressure sensor through the spring, and the opening size of the solenoid valve 21 is controlled by the force at the pressure sensor. When the force at the pressure sensor increases, the opening of the solenoid valve 21 increases, and vice versa. A part of the exhaust gas flows upward through the outlet pipe 12, and is subjected to secondary cooling treatment through the cooling pipe 15 on the outlet pipe 12. The exhaust gas flowing out of the outlet pipe 12 is finally gathered in the absorption box for subsequent treatment. Another part of the exhaust gas flows to the connecting pipe 13 through the opening of the solenoid valve 21, and is opened through the air valve 16. Under the connection between the connecting pipe 17 and the intake pipe 11 at the rear end, it flows to the air ring 10 at the rear end for treatment.

[0019] It is clear to those skilled in the art that various modifications to the above embodiments can be made without departing from the overall spirit and concept of the present invention. All of them fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A thermal power generation waste gas cooling processor, comprising a front and rear distributed gas ring (10), characterized in that: The left end of the air ring (10) is connected to and fixedly provided with an air inlet pipe (11), the upper end of the air ring (10) is connected to and fixedly provided with an air outlet pipe (12), a connecting pipe (13) is provided between the air inlet pipe (11) and the upper end of the air ring (10) and between the air inlet pipe (11) and the air outlet pipe (12), a cooling pipe (14) is wound around the outer circumference of the air ring (10), a cooling pipe (15) is wound around the outer circumference of the air outlet pipe (12), an air valve (16) is connected to and fixedly provided on the connecting pipe (13), and the rear end of the air valve (16) is connected to A connecting pipe (17) is fixedly provided, the connecting pipe (17) being connected to the air inlet pipe (11) on the air ring (10) at the rear end, a fixing ring (23) is fixedly provided in the air outlet pipe (12), a sliding ring (22) is slidably connected to the fixing ring (23), a fixing rod (25) is fixedly provided at the lower end of the sliding ring (22), a lifting plate (20) is fixedly provided at the lower end of the fixing rod (25), a telescopic rod (24) is connected between the fixing ring (23) and the sliding ring (22), and the upper end of the lifting plate (20) is protruding.

2. A thermal power generation exhaust gas cooling processor according to claim 1, characterized in that: A pressure sensor is connected to the telescopic rod (24), a solenoid valve (21) is provided inside the air ring (10) and between the connecting pipe (13) and the air outlet pipe (12), and the pressure sensor is signal-connected to the solenoid valve (21).

3. A thermal power generation exhaust gas cooling processor according to claim 2, characterized in that: A baffle (18) is provided inside the air ring (10) and between the air inlet pipe (11) and the connecting pipe (13).

4. A thermal power generation exhaust gas cooling processor according to claim 3, characterized in that: A guide plate (19) is fixedly arranged in the air ring (10), and the guide plate (19) is located on the right side of the air outlet pipe (12).

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