Dead steam recovery device applied to deaerator of waste incineration power plant

Abstract

The utility model discloses a waste steam recovery device applied to a deaerator of a waste incineration power plant, which comprises a recovery machine shell, a conveying gas hood is fixedly arranged at the bottom end of the inner wall of the recovery machine shell, a purification mechanism is fixedly arranged in the conveying gas hood, and a condensation plate is fixedly arranged at the top end of the inner wall of the recovery machine shell. The waste steam recycling device comprises a recycling machine shell, a stirring mechanism is fixedly installed on one side of the recycling machine shell, one side of the bottom end of the recycling machine shell is fixedly communicated with a deaerator body, the deaerator body comprises a degassing tower and a water storage tank, and the bottom end of the degassing tower is fixedly communicated with the top end of the water storage tank. After steam generated by the deaerator is stirred by the first stirring paddle in the recovery machine shell, gas is expanded and makes contact with the condensation plate, the gas is cooled and condensed, most exhaust steam is condensed into water and then introduced into the steam turbine drain tank through the liquid drainage pipeline, and non-condensable gas is exhausted into the atmosphere through the exhaust pipeline at the top of the dead steam recovery machine shell.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage incineration power plants, in particular to a waste steam recovery device for a deaerator in a garbage incineration power plant. Background Art

[0002] Waste incineration power generation is to burn domestic waste at high temperature to convert combustible waste in domestic waste into carbon dioxide and water, etc. The waste heat generated is used for power generation, and the waste gas and fly ash generated are harmlessly treated. Domestic waste incineration power generation has the advantages of "harmlessness, reduction, and resource utilization". In order to prevent the boiler or steam generator used in waste incineration from being corroded by metal corrosion and corrosion products, people usually install a deaerator on one side. The deaerator removes dissolved oxygen in the water by exposing the water to a low-oxygen environment. During the use of the deaerator, the phenomenon of exhaust steam occurs. It is mainly in the steam generator, and the deoxygenated water treated by the deaerator evaporates during the heating process to generate water vapor.

[0003] However, traditional waste incineration power plants have the following disadvantages when operating:

[0004] After the deaerator in a traditional waste incineration power plant produces exhaust steam, the water vapor produced is directly discharged. The exhaust steam does not contain dissolved oxygen and other impurities, and is clean and pure, resulting in loss of steam and water and a waste of water resources. Utility Model Content

[0005] The purpose of the utility model is to provide a waste steam recovery device for a deaerator in a waste incineration power plant, so as to solve the problem proposed in the above background technology that after the deaerator in a traditional waste incineration power plant generates waste steam, the water vapor generated is directly discharged, the waste steam does not contain dissolved oxygen and other impurities, is clean and pure, and there is a loss of steam and water, and a waste of water resources.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deaerator exhaust steam recovery device for a waste incineration power plant, comprising a recovery casing, a conveying gas hood is fixedly installed at the bottom end of the inner wall of the recovery casing, a purification mechanism is fixedly installed inside the conveying gas hood, a condensation plate is fixedly installed at the top of the inner wall of the recovery casing, a stirring mechanism is fixedly installed on one side of the recovery casing, a deaerator body is fixedly connected to one side of the bottom end of the recovery casing, the deaerator body comprises a degassing tower and a water storage tank, the bottom end of the degassing tower is fixedly connected to the top end of the water storage tank, and the top end of the degassing tower is fixedly connected to the top end of the water storage tank. An air outlet pipe is fixedly installed, the purification mechanism includes a first filter plate and a second filter plate, both sides of the top of the first filter plate are slidably connected with movable blocks, the top of the first filter plate is provided with an angle seat, the top of the angle seat is fixedly connected to the bottom end of the second filter plate, the stirring mechanism includes a mounting frame, a driving shaft and a driven shaft, one side of the bottom end of the mounting frame is rotatably connected to the top of the driving shaft, the other side of the bottom end of the mounting frame is rotatably connected to the top of the driven shaft, a servo motor is fixedly installed on one side of the mounting frame, and a first stirring paddle extending to the inside of the recovery casing is fixedly installed on the output end of the servo motor.

[0007] Preferably, an exhaust cooler is fixedly installed in the middle of the air outlet pipe, a pressure gauge is fixedly installed on one side of the top of the water tank, a safety water seal is fixedly installed on one side of the water tank, and a water level gauge is fixedly installed on the other side of the water tank. The pressure gauge displays the water pressure in the water tank in real time, and the water level gauge displays the water level in the water tank in real time.

[0008] Preferably, one end of the gas outlet pipe away from the degassing tower is fixedly connected to the side directly opposite to the recovery casing, and the deaerator body is installed on the recovery casing through the gas outlet pipe.

[0009] Preferably, the top ends of the two movable blocks are rotatably connected to angle rods, and the ends of the two angle rods away from the movable blocks are respectively rotatably connected to the two sides of the angle seat, and a connecting spring is fixedly installed between the two angle rods. Under the push of the gas in the deaerator body, the distance between the second filter plate and the first filter plate changes, and the movable block slides along the first filter plate, and the angle rod deflects along the angle seat. During the deflection of the angle rod, the connecting springs are squeezed from both ends, and the connecting springs are elastic, and the connecting springs undergo elastic deformation to buffer the squeezing force.

[0010] Preferably, the side surface of the first filter plate is fixedly connected to the conveying air hood, the second filter plate is slidably connected to the conveying air hood, and the purification mechanism is installed in the conveying air hood through the first filter plate and the second filter plate.

[0011] Preferably, an active umbrella-shaped bevel gear is fixedly installed on the surface of the first stirring paddle, and a driven umbrella-shaped bevel gear is fixedly installed on the bottom end of the driving shaft, and the outer side of the active umbrella-shaped bevel gear is meshed with the outer side of the driven umbrella-shaped bevel gear, and a pulley is fixedly installed on the middle part of the driving shaft and the middle part of the driven shaft, and a belt is transmission-connected between the two pulleys, and a second stirring paddle located at the top of the servo motor is fixedly installed on the bottom end of the driven shaft, and the surface of the mounting frame is fixedly connected to the recovery casing. The servo motor is started after being energized, and the servo motor drives the first stirring paddle to rotate, and the first stirring paddle stirs the gas discharged from the deaerator body. During the rotation of the first stirring paddle, the active umbrella-shaped bevel gear is driven to rotate, and the active umbrella-shaped bevel gear contacts with the driven umbrella-shaped bevel gear, and the driven umbrella-shaped bevel gear drives the driving shaft to rotate, and the driving shaft drives the pulley installed thereon to rotate, and the transmission force is transmitted between the pulleys through the belt, so the driven shaft rotates, and the driven shaft drives the second stirring paddle to rotate to dissipate heat and cool the servo motor.

[0012] Preferably, the surface of the conveying gas hood is fixedly connected to a drainage pipe extending to the outside, and the top of the recovery casing is fixedly connected to an exhaust pipe. The condensed gas discharges the liquid to the outside through the drainage pipe, and the insoluble gas is discharged to the outside through the exhaust pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting up a recovery casing, the steam generated by the deaerator is stirred by the first stirring paddle in the recovery casing, the gas expands and contacts the condensation plate, the gas is cooled and condensed, and most of the exhaust steam is condensed into water and introduced into the steam turbine drain tank through the drainage pipe, and the non-condensable gas is discharged into the atmosphere through the exhaust pipe on the top of the exhaust steam recovery casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a cross-sectional view of the utility model;

[0015] Figure 2 It is a side view of the deaerator body of the utility model;

[0016] Figure 3 This is a connection diagram of the gas conveying hood and the purification mechanism of the utility model;

[0017] Figure 4 It is a side view of the stirring mechanism of the utility model.

[0018] In the figure: 1. deaerator body; 11. degassing tower; 12. water storage tank; 13. exhaust cooler; 14. safety water seal; 15. pressure gauge; 16. water level gauge; 17. exhaust pipe; 2. recovery casing; 3. stirring mechanism; 31. mounting frame; 32. driven shaft; 33. second stirring paddle; 34. servo motor; 35. active umbrella-shaped bevel gear; 36. first stirring paddle; 37. driven umbrella-shaped bevel gear; 38. active shaft; 39. pulley; 4. condensation plate; 5. exhaust pipe; 6. conveying gas hood; 7. drainage pipe; 8. purification mechanism; 81. first filter plate; 82. movable block; 83. connecting spring; 84. angle rod; 85. angle seat; 86. second filter plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-4 The utility model provides a waste steam recovery device for a deaerator in a waste incineration power plant, comprising a recovery casing 2, a conveying gas hood 6 is fixedly installed at the bottom end of the inner wall of the recovery casing 2, a purification mechanism 8 is fixedly installed inside the conveying gas hood 6, a condensation plate 4 is fixedly installed at the top of the inner wall of the recovery casing 2, a stirring mechanism 3 is fixedly installed on one side of the recovery casing 2, a deaerator body 1 is fixedly connected to one side of the bottom end of the recovery casing 2, the deaerator body 1 comprises a degassing tower 11 and a water storage tank 12, the bottom end of the degassing tower 11 is fixedly connected to the top of the water storage tank 12, an outlet pipe 17 is fixedly installed on the top of the degassing tower 11, and the purification mechanism 8 It includes a first filter plate 81 and a second filter plate 86, both sides of the top of the first filter plate 81 are slidably connected with movable blocks 82, the top of the first filter plate 81 is provided with an angle seat 85, the top of the angle seat 85 is fixedly connected to the bottom of the second filter plate 86, the stirring mechanism 3 includes a mounting frame 31, a driving shaft 38 and a driven shaft 32, one side of the bottom end of the mounting frame 31 is rotatably connected to the top of the driving shaft 38, the other side of the bottom end of the mounting frame 31 is rotatably connected to the top of the driven shaft 32, a servo motor 34 is fixedly installed on one side of the mounting frame 31, and a first stirring paddle 36 extending to the inside of the recovery casing 2 is fixedly installed on the output end of the servo motor 34.

[0021] An exhaust cooler 13 is fixedly installed in the middle of the air outlet pipe 17, a pressure gauge 15 is fixedly installed on one side of the top of the water tank 12, a safety water seal 14 is fixedly installed on one side of the water tank 12, and a water level gauge 16 is fixedly installed on the other side of the water tank 12. The pressure gauge 15 displays the water pressure in the water tank 12 in real time, and the water level gauge 16 displays the water level in the water tank 12 in real time.

[0022] One end of the gas outlet pipe 17 away from the degassing tower 11 is fixedly connected to the side directly opposite to the recovery casing 2 , and the deaerator body 1 is installed on the recovery casing 2 through the gas outlet pipe 17 .

[0023] The top ends of the two movable blocks 82 are rotatably connected to angle rods 84, and the ends of the two angle rods 84 away from the movable blocks 82 are rotatably connected to the two sides of the angle seat 85 respectively. A connecting spring 83 is fixedly installed between the two angle rods 84. Under the push of the gas in the deaerator body 1, the distance between the second filter plate 86 and the first filter plate 81 changes, and the movable block 82 slides along the first filter plate 81, and the angle rod 84 deflects along the angle seat 85. During the deflection of the angle rod 84, the connecting spring 83 is squeezed from both ends. The connecting spring 83 is elastic, and the connecting spring 83 undergoes elastic deformation to buffer the squeezing force.

[0024] The side surface of the first filter plate 81 is fixedly connected to the conveying gas hood 6 , and the second filter plate 86 is slidably connected to the conveying gas hood 6 . The purification mechanism 8 is installed in the conveying gas hood 6 through the first filter plate 81 and the second filter plate 86 .

[0025] An active umbrella-shaped bevel gear 35 is fixedly mounted on the surface of the first stirring paddle 36, a driven umbrella-shaped bevel gear 37 is fixedly mounted on the bottom end of the active shaft 38, the outer side of the active umbrella-shaped bevel gear 35 is meshedly connected with the outer side of the driven umbrella-shaped bevel gear 37, a pulley 39 is fixedly mounted on the middle of the active shaft 38 and the middle of the driven shaft 32, a belt is connected between the two pulleys 39, a second stirring paddle 33 located at the top of the servo motor 34 is fixedly mounted on the bottom end of the driven shaft 32, the surface of the mounting frame 31 is fixedly connected to the recycling machine housing 2, the servo motor 34 is started after being powered on, and the servo motor The machine 34 drives the first stirring paddle 36 to rotate, and the first stirring paddle 36 stirs the gas discharged from the deaerator body 1. During the rotation of the first stirring paddle 36, the active umbrella-shaped bevel gear 35 is driven to rotate. The active umbrella-shaped bevel gear 35 contacts the driven umbrella-shaped bevel gear 37, and the driven umbrella-shaped bevel gear 37 drives the active shaft 38 to rotate. The active shaft 38 drives the pulley 39 installed thereon to rotate. The transmission force is transmitted between the pulleys 39 through the belt, so the driven shaft 32 rotates, and the driven shaft 32 drives the second stirring paddle 33 to rotate to dissipate heat and cool the servo motor 34.

[0026] The surface of the conveying gas hood 6 is fixedly connected with a drainage pipe 7 extending to the outside, and the top of the recovery shell 2 is fixedly connected with an exhaust pipe 5. The condensed gas discharges the liquid to the outside through the drainage pipe 7, and the insoluble gas is discharged to the outside through the exhaust pipe 5.

[0027] When the embodiment of the present application is in use, the gas in the deaerator body 1 is transported to the recovery housing 2 through the outlet pipe 17, and the servo motor 34 is started after being energized. The servo motor 34 drives the first stirring paddle 36 to rotate, and the first stirring paddle 36 stirs the gas discharged from the deaerator body 1. During the rotation of the first stirring paddle 36, the active umbrella-shaped bevel gear 35 is driven to rotate, and the active umbrella-shaped bevel gear 35 contacts the driven umbrella-shaped bevel gear 37. The driven umbrella-shaped bevel gear 37 drives the active shaft 38 to rotate, and the active shaft 38 drives the pulley 39 installed thereon to rotate. The transmission force is transmitted between the pulleys 39 through the belt, so the driven shaft 32 rotates, and the driven shaft 32 drives the second stirring paddle 33 to rotate to dissipate heat and cool the servo motor 34. During the contact between the gas and the condensation plate 4 driven by the first stirring paddle 36, the high-temperature gas is condensed by the low temperature of the condensation plate 4 itself, and is divided into soluble liquid and insoluble gas. The condensed gas discharges the liquid to the outside through the drainage pipe 7, and the insoluble gas is discharged to the outside through the exhaust pipe 5.

[0028] 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 waste steam recovery device for a deaerator in a waste incineration power plant, comprising a recovery casing (2), characterized in that: A conveying air hood (6) is fixedly mounted on the bottom end of the inner wall of the recovery casing (2), a purification mechanism (8) is fixedly mounted inside the conveying air hood (6), a condensation plate (4) is fixedly mounted on the top end of the inner wall of the recovery casing (2), a stirring mechanism (3) is fixedly mounted on one side of the recovery casing (2), a deaerator body (1) is fixedly connected to one side of the bottom end of the recovery casing (2), the deaerator body (1) comprises a degassing tower (11) and a water storage tank (12), the bottom end of the degassing tower (11) is fixedly connected to the top end of the water storage tank (12), an air outlet pipe (17) is fixedly mounted on the top end of the degassing tower (11), the purification mechanism (8) comprises a first filter plate (81) and a second filter plate (86), Both sides of the top end of the first filter plate (81) are slidably connected with movable blocks (82); the top end of the first filter plate (81) is provided with an angle seat (85); the top end of the angle seat (85) is fixedly connected to the bottom end of the second filter plate (86); the stirring mechanism (3) comprises a mounting frame (31), a driving shaft (38) and a driven shaft (32); one side of the bottom end of the mounting frame (31) is rotatably connected to the top end of the driving shaft (38); the other side of the bottom end of the mounting frame (31) is rotatably connected to the top end of the driven shaft (32); a servo motor (34) is fixedly mounted on one side of the mounting frame (31); and a first stirring paddle (36) extending into the interior of the recovery housing (2) is fixedly mounted on the output end of the servo motor (34).

2. According to claim 1, the exhaust steam recovery device for a deaerator in a waste incineration power plant is characterized in that: An exhaust cooler (13) is fixedly installed in the middle of the air outlet pipe (17), a pressure gauge (15) is fixedly installed on one side of the top of the water storage tank (12), a safety water seal (14) is fixedly installed on one side of the water storage tank (12), and a water level gauge (16) is fixedly installed on the other side of the water storage tank (12).

3. The exhaust steam recovery device for a deaerator in a waste incineration power plant according to claim 1 is characterized in that: One end of the gas outlet pipe (17) away from the degassing tower (11) is fixedly connected to the side of the recovery casing (2) facing the other side.

4. The exhaust steam recovery device for a deaerator in a waste incineration power plant according to claim 1 is characterized in that: The top ends of the two movable blocks (82) are rotatably connected to angle rods (84), and the ends of the two angle rods (84) away from the movable blocks (82) are rotatably connected to the two sides of the angle seat (85), respectively, and a connecting spring (83) is fixedly installed between the two angle rods (84).

5. The exhaust steam recovery device for a deaerator in a waste incineration power plant according to claim 1 is characterized in that: The side surface of the first filter plate (81) is fixedly connected to the conveying gas hood (6), and the second filter plate (86) is slidably connected to the conveying gas hood (6).

6. The exhaust steam recovery device for a deaerator in a waste incineration power plant according to claim 1 is characterized in that: A driving umbrella-shaped bevel gear (35) is fixedly mounted on the surface of the first stirring paddle (36); a driven umbrella-shaped bevel gear (37) is fixedly mounted on the bottom end of the driving shaft (38); the outer side of the driving umbrella-shaped bevel gear (35) is meshingly connected with the outer side of the driven umbrella-shaped bevel gear (37); a pulley (39) is fixedly mounted on the middle of the driving shaft (38) and the middle of the driven shaft (32); a belt is connected between the two pulleys (39); a second stirring paddle (33) located at the top end of the servo motor (34) is fixedly mounted on the bottom end of the driven shaft (32); and the surface of the mounting frame (31) is fixedly connected to the recycling casing (2).

7. The exhaust steam recovery device for a deaerator in a waste incineration power plant according to claim 1 is characterized in that: The surface of the conveying gas cover (6) is fixedly connected to a drainage pipe (7) extending to the outside, and the top of the recovery casing (2) is fixedly connected to an exhaust pipe (5).

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