CN116772184B - A water vapor separation device for a steam boiler - Google Patents

Abstract

The invention discloses a steam-water separation device of a steam boiler, which comprises a steam-water separation assembly arranged on a steam boiler body, wherein the steam-water separation assembly comprises a steam-water separation box, the air inlet end of the steam-water separation box is connected with an air supply pipe communicated with the air outlet end of the steam boiler body, the air outlet end of the steam-water separation box is communicated with an exhaust pipe, the bottom of the steam-water separation box is communicated with a drain pipe, a gas discharge pipe is arranged in the air inlet end of the steam-water separation box, a driving shaft is arranged in the air outlet end of the steam-water separation box, and a centrifugal wheel is arranged on the driving shaft. Through centrifugal separation, liquid drops and solid particles in water vapor are separated and fall to the periphery of a centrifugal wheel to form liquid water, so that water-vapor separation is realized, and the separation efficiency is greatly improved.

Description

A water vapor separation device for a steam boiler

Technical Field

The invention relates to the technical field of water vapor separation of steam boilers, in particular to a water vapor separation device of a steam boiler.

Background technique

Steam boiler refers to boiler equipment that produces steam. It is a special equipment. Its design, production, delivery and installation must be subject to the supervision of the national technical supervision department. Users need to obtain a boiler use certificate to operate the boiler. Unlike normal pressure boilers, steam boilers must be accompanied by boiler procedures when they leave the factory. Boiler procedures include boiler body drawings, installation drawings, instrument valve drawings, pipeline drawings and inspection certificates.

The water vapor generated by the combustion of the steam boiler will mix with other gases and impurities and enter the steam pipe. These impurities may cause blockage or corrosion of the steam pipe, affecting the normal operation and service life of the boiler. Therefore, it is necessary to install a water vapor separator in the steam pipe to separate the water vapor and impurities, ensure the flow of pure steam in the steam pipe, and ensure the normal operation and service life of the boiler.

Existing water vapor separators all use sieve plates, and the maintenance and care of the sieve plates requires regular cleaning and replacement of the sieve plates, which requires a certain amount of manpower, material resources and time, increasing the cost of maintenance.

Summary of the invention

In order to solve the deficiencies mentioned in the above background technology, the purpose of the present invention is to provide a steam boiler water vapor separation device, through the high-speed rotation of the centrifugal wheel, so that the liquid droplets and solid particles in the water vapor are affected by the centrifugal force, diffuse outward, and fall to the periphery of the centrifugal wheel. After centrifugal separation, the liquid droplets and solid particles in the water vapor are separated and fall to the periphery of the centrifugal wheel to form liquid water, thereby achieving water vapor separation and greatly improving the separation efficiency.

The purpose of the present invention can be achieved through the following technical solutions:

A steam separation device for a steam boiler comprises a steam separation assembly arranged on a steam boiler body, the steam separation assembly comprises a steam separation box, an air inlet end of the steam separation box is connected to an air supply pipe connected to an air outlet end of the steam boiler body, an air outlet end of the steam separation box is connected to an exhaust pipe, a bottom of the steam separation box is connected to a drain pipe, a closed door is arranged on the top of the steam separation box, a vent pipe is arranged inside the air inlet end of the steam separation box, a drive shaft is arranged inside the air outlet end of the steam separation box, a centrifugal wheel is arranged on the drive shaft, the centrifugal wheel comprises a first guard plate and a second guard plate, the vent pipe passes through the first guard plate, the vent pipe is rotatably connected to the first guard plate, the second guard plate is sleeved on the drive shaft, and a centrifugal fan blade is arranged between the second guard plate and the first guard plate. The steam entering the steam separation box enters the centrifugal wheel along the air inlet pipe. The centrifugal wheel rotates at a high speed, so that the droplets and solid particles in the steam are affected by the centrifugal force, diffuse outward, and fall to the periphery of the centrifugal wheel. After centrifugal separation, the droplets and solid particles in the water vapor are separated and fall to the periphery of the centrifugal wheel to form liquid water, thus achieving water vapor separation.

As a preferred solution of the present invention, a plurality of centrifugal blades are provided and distributed in a circular array around the axis of the driving shaft.

As a preferred solution of the present invention, a detachable filter plate is provided inside the water vapor separation box, and the detachable filter plate includes a first arc plate and a second arc plate, and the first arc plate and the second arc plate are spliced to form a cylindrical filter plate. The cylindrical filter plate can better filter water vapor and impurities, so that pure steam in the steam pipe flows.

As a preferred solution of the present invention, a T-block is fixedly connected to one side of the first arc plate and the second arc plate close to the vent pipe, a bearing is sleeved on the vent pipe, a connecting plate is symmetrically arranged on the outer layer of the bearing, a T-slot is opened on the connecting plate, the T-block is located inside the T-slot, and the T-block is slidably connected to the T-slot. When maintenance work needs to be performed on the cylindrical filter plate, the closed door is first opened, and then the sliding plate and the limit ring are pulled to the cylindrical filter plate so that the semicircular connector is no longer restricted. At this time, the first arc plate or the second arc plate is pulled away from the drive shaft. At this time, the T-block will slide in the T-slot until the T-block moves out of the T-slot, and the first arc plate or the second arc plate is taken out for cleaning or replacement.

As a preferred solution of the present invention, a semicircular connector is fixedly connected to one side of the first arc plate and the second arc plate away from the vent pipe, and a bracket is fixedly connected to the interior of the water vapor separation box.

As a preferred solution of the present invention, one end of the bracket is fixedly connected to a sleeve, the drive shaft passes through the sleeve, and a limiting plate is sleeved on a side of the sleeve away from the centrifugal wheel.

As a preferred solution of the present invention, the limit plate is fixedly connected to the sleeve, a sliding plate is sleeved on the sleeve, and the sliding plate is slidably connected to the sleeve.

As a preferred solution of the present invention, a spring is sleeved on the sleeve, and the two ends of the spring are fixedly connected to the slide plate and the limit plate respectively, and the side of the slide plate away from the limit plate is fixedly connected to the limit ring, and the semicircular connector is located between the limit ring and the sleeve. Through the arrangement of the sleeve, the limit plate, the slide plate and the spring, the detachable function of the cylindrical filter plate is realized, and the position of the detachable filter plate can be made more stable, reducing vibration and noise.

As a preferred solution of the present invention, one end of the drive shaft passes through the water vapor separation box and extends to the outside of the water vapor separation box, and the end of the drive shaft located outside the water vapor separation box is fixedly connected to a passive gear.

As a preferred solution of the present invention, a driving motor is fixedly connected to one side of the water vapor separation box, a driving gear is fixedly connected to the output end of the driving motor, and the driving gear and the passive gear are meshed with each other. By starting the driving motor, the driving gear and the passive gear are used to drive the driving shaft to rotate.

The beneficial effects of the present invention are:

1. The invention uses the centrifugal wheel to rotate at high speed, so that the droplets and solid particles in the water vapor are affected by the centrifugal force, diffuse outward, and fall to the periphery of the centrifugal wheel. After centrifugal separation, the droplets and solid particles in the water vapor are separated and fall to the periphery of the centrifugal wheel to form liquid water, thereby achieving water vapor separation and greatly improving the separation efficiency;

2. The detachable filter plate of the present invention makes it easier to clean and replace the filter plate, facilitates maintenance work, and reduces maintenance costs;

3. The present invention adopts a cylindrical filter plate, which can better filter water vapor and impurities, allowing pure steam to flow in the steam pipeline;

4. The present invention realizes the detachable function of the cylindrical filter plate by setting the sleeve, the limit plate, the slide plate and the spring, and can make the position of the detachable filter plate more stable, thereby reducing vibration and noise;

5. The present invention uses molecular sieve as the adsorption layer, which can better adsorb the moisture of the gas entering the exhaust pipe, further enhancing the effect of water vapor separation.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a schematic diagram of the overall structure of the present invention;

FIG2 is a cross-sectional view of the structure of the water vapor separation box of the present invention;

3 is a cross-sectional view of the structure of the water vapor separation box of the present invention;

FIG4 is a schematic diagram of the structure of the centrifugal wheel of the present invention;

FIG5 is a schematic diagram of the structure of the first arc of the present invention;

FIG6 is a schematic structural diagram of a drive shaft of the present invention;

FIG. 7 is a cross-sectional view of the structure of the exhaust pipe of the present invention.

In the figure:

1. Water vapor separation box; 2. Air supply pipe; 3. Exhaust pipe; 4. Drain pipe; 5. Closed door; 6. Vent pipe; 7. Drive shaft; 8. Centrifugal wheel; 9. First guard plate; 10. Second guard plate; 11. Centrifugal fan blade; 12. First arc plate; 13. Second arc plate; 14. T-block; 15. Bearing; 16. Connecting plate; 17. T-slot; 18. Semicircular connector; 19. Bracket; 20. Sleeve; 21. Limit plate; 22. Slide plate; 23. Spring; 24. Limit ring; 25. Passive gear; 26. Drive motor; 27. Drive gear; 28. Water retaining ring; 29. Adsorption layer.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

Embodiment 1

As shown in Fig. 1 to Fig. 7, a steam separation device for a steam boiler comprises a steam separation assembly arranged on a steam boiler body, the steam separation assembly comprises a steam separation box 1, the air inlet end of the steam separation box 1 is connected to an air supply pipe 2 connected to the air outlet end of the steam boiler body, the air outlet end of the steam separation box 1 is connected to an exhaust pipe 3, the bottom of the steam separation box 1 is connected to a drain pipe 4, the top of the steam separation box 1 is provided with a closed door 5, the air inlet end of the steam separation box 1 is provided with a vent pipe 6, the air outlet end of the steam separation box 1 is provided with a drive shaft 7, a centrifugal wheel 8 is arranged on the drive shaft 7, the centrifugal wheel 8 comprises a first guard plate 9 and a second guard plate 10, the vent pipe 6 passes through the first guard plate 9, the vent pipe 6 is rotatably connected to the first guard plate 9, the second guard plate 10 is sleeved on the drive shaft 7, and a centrifugal fan blade 11 is arranged between the second guard plate 10 and the first guard plate 9. The water vapor entering the steam separation box 1 enters the centrifugal wheel 8 along the air inlet pipe. The centrifugal wheel 8 rotates at a high speed, so that the liquid droplets and solid particles in the water vapor are affected by the centrifugal force, diffuse outward, and fall to the periphery of the centrifugal wheel 8. After centrifugal separation, the liquid droplets and solid particles in the water vapor are separated and fall to the periphery of the centrifugal wheel 8 to form liquid water, thereby achieving water vapor separation.

The centrifugal blades 11 are provided in plurality and are distributed in a circular array around the axis of the driving shaft 7 .

The water vapor separation box 1 is provided with a detachable filter plate inside, and the detachable filter plate includes a first curved plate 12 and a second curved plate 13, and the first curved plate 12 and the second curved plate 13 are spliced to form a cylindrical filter plate. The cylindrical filter plate can better filter water vapor and impurities, so that pure steam in the steam pipe flows.

The first curved plate 12 and the second curved plate 13 are fixedly connected with a T-block 14 on one side close to the vent pipe 6. The vent pipe 6 is sleeved with a bearing 15. The outer layer of the bearing 15 is symmetrically provided with a connecting plate 16. The connecting plate 16 is provided with a T-slot 17. The T-block 14 is located inside the T-slot 17. The T-block 14 is slidably connected with the T-slot 17. When maintenance work is required on the cylindrical filter plate, the closed door 5 is first opened, and then the sliding plate 22 and the limit ring 24 are pulled to move the cylindrical filter plate so that the semicircular connector 18 is no longer restricted. At this time, the first curved plate 12 or the second curved plate 13 is pulled away from the drive shaft 7. At this time, the T-block 14 will slide in the T-slot 17 until the T-block 14 moves out of the T-slot 17, and the first curved plate 12 or the second curved plate 13 is taken out for cleaning or replacement.

A semicircular connector 18 is fixedly connected to one side of the first arc plate 12 and the second arc plate 13 away from the vent pipe 6 , and a bracket 19 is fixedly connected to the interior of the water vapor separation box 1 .

A sleeve 20 is fixedly connected to one end of the bracket 19 , and the drive shaft 7 passes through the sleeve 20 . A limiting plate 21 is sleeved on a side of the sleeve 20 away from the centrifugal wheel 8 .

The limiting plate 21 is fixedly connected to the sleeve 20 . A sliding plate 22 is sleeved on the sleeve 20 . The sliding plate 22 is slidably connected to the sleeve 20 .

The sleeve 20 is sleeved with a spring 23, and the two ends of the spring 23 are fixedly connected to the slide plate 22 and the limit plate 21 respectively. The side of the slide plate 22 away from the limit plate 21 is fixedly connected to the limit ring 24, and the semicircular connector 18 is located between the limit ring 24 and the sleeve 20. Through the arrangement of the sleeve 20, the limit plate 21, the slide plate 22 and the spring 23, the detachable function of the cylindrical filter plate is realized, and the position of the detachable filter plate can be made more stable, reducing vibration and noise.

One end of the driving shaft 7 passes through the water vapor separation box 1 and extends to the outside of the water vapor separation box 1 , and the end of the driving shaft 7 located outside the water vapor separation box 1 is fixedly connected to a driven gear 25 .

A driving motor 26 is fixedly connected to one side of the water vapor separation box 1, and a driving gear 27 is fixedly connected to the output end of the driving motor 26, and the driving gear 27 is meshed with the passive gear 25. By starting the driving motor 26, the driving gear 27 and the passive gear 25 are driven to rotate the driving shaft 7.

The working process of the water vapor separation device of the steam boiler of the present invention is as follows:

The steam boiler generates water vapor, and the water vapor enters the water vapor separation box 1 through the air supply pipe 2.

The water vapor entering the water vapor separation box 1 enters the centrifugal wheel 8 along the air inlet pipe. The centrifugal wheel 8 rotates at a high speed, so that the liquid droplets and solid particles in the water vapor are affected by the centrifugal force, diffuse outward, and fall to the periphery of the centrifugal wheel 8. After centrifugal separation, the liquid droplets and solid particles in the water vapor are separated and fall to the periphery of the centrifugal wheel 8 to form liquid water, thereby achieving water vapor separation.

Liquid water will gather on the surface of the water vapor separation box 1 and flow into the drain pipe 4 to be discharged.

When water vapor passes through the cylindrical filter plate, the particulate impurities in the water vapor will be intercepted, thereby separating the solid particles in the water vapor.

The separated clean steam is discharged through the exhaust pipe 3 . The molecular sieve on the inner surface of the exhaust pipe 3 absorbs moisture in the gas. The water retaining ring 28 can prevent liquid water from flowing into the exhaust pipe 3 .

The drain pipe 4 discharges the separated impurities and liquid water.

Embodiment 2

As shown in Fig. 6, a detachable filter plate is arranged inside the water vapor separation box 1, and the detachable filter plate includes a first curved plate 12 and a second curved plate 13, and the first curved plate 12 and the second curved plate 13 are spliced to form a cylindrical filter plate. The use of a cylindrical filter plate can better filter water vapor and impurities, so that pure steam in the steam pipe flows.

The first curved plate 12 and the second curved plate 13 are fixedly connected with a T-block 14 on one side close to the vent pipe 6. The vent pipe 6 is sleeved with a bearing 15. The outer layer of the bearing 15 is symmetrically provided with a connecting plate 16. The connecting plate 16 is provided with a T-slot 17. The T-block 14 is located inside the T-slot 17. The T-block 14 is slidably connected with the T-slot 17. When maintenance work is required on the cylindrical filter plate, the closed door 5 is first opened, and then the sliding plate 22 and the limit ring 24 are pulled to move the cylindrical filter plate so that the semicircular connector 18 is no longer restricted. At this time, the first curved plate 12 or the second curved plate 13 is pulled away from the drive shaft 7. At this time, the T-block 14 will slide in the T-slot 17 until the T-block 14 moves out of the T-slot 17, and the first curved plate 12 or the second curved plate 13 is taken out for cleaning or replacement.

A semicircular connector 18 is fixedly connected to one side of the first arc plate 12 and the second arc plate 13 away from the vent pipe 6 , and a bracket 19 is fixedly connected to the interior of the water vapor separation box 1 .

A sleeve 20 is fixedly connected to one end of the bracket 19 , and the drive shaft 7 passes through the sleeve 20 . A limiting plate 21 is sleeved on a side of the sleeve 20 away from the centrifugal wheel 8 .

The limiting plate 21 is fixedly connected to the sleeve 20 . A sliding plate 22 is sleeved on the sleeve 20 . The sliding plate 22 is slidably connected to the sleeve 20 .

The sleeve 20 is sleeved with a spring 23, and the two ends of the spring 23 are fixedly connected to the slide plate 22 and the limit plate 21 respectively. The side of the slide plate 22 away from the limit plate 21 is fixedly connected to the limit ring 24, and the semicircular connector 18 is located between the limit ring 24 and the sleeve 20. Through the arrangement of the sleeve 20, the limit plate 21, the slide plate 22 and the spring 23, the detachable function of the cylindrical filter plate is realized, and the position of the detachable filter plate can be made more stable, reducing vibration and noise.

When maintenance work needs to be performed on the cylindrical filter plate, first open the closed door 5, then pull the sliding plate 22 and the limiting ring 24 to pull the cylindrical filter plate so that the semicircular connecting piece 18 is no longer restricted. At this time, pull the first curved plate 12 or the second curved plate 13 away from the drive shaft 7. At this time, the T-block 14 will slide in the T-slot 17 until the T-block 14 moves out of the T-slot 17, and take out the first curved plate 12 or the second curved plate 13 for cleaning or replacement. The setting of the detachable filter plate makes it easier to clean and replace the sieve plate, facilitates maintenance work, and reduces maintenance costs.

In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and simple improvements made to the essential contents of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. A steam separation device for a steam boiler, characterized in that it comprises a steam separation component arranged on a steam boiler body, the steam separation component comprises a steam separation box (1), an air inlet end of the steam separation box (1) is connected to an air supply pipe (2) connected to an air outlet end of the steam boiler body, an air outlet end of the steam separation box (1) is connected to an exhaust pipe (3), a bottom of the steam separation box (1) is connected to a drain pipe (4), a top of the steam separation box (1) is provided with a closed door (5), an air inlet end of the steam separation box (1) is connected to an air inlet pipe (2) connected to an air outlet end of the steam boiler body, an air outlet end of the steam separation box (1) is connected to an exhaust pipe (3), a bottom of the steam separation box (1) is connected to a drain pipe (4), a top of the steam separation box (1) is provided with a closed door (5), and an air inlet end of the steam separation box (1) is connected to an air inlet pipe (2) connected to an air outlet end of the steam boiler body. A vent pipe (6) is arranged inside the gas end, a drive shaft (7) is arranged inside the gas outlet end of the water vapor separation box (1), a centrifugal wheel (8) is arranged on the drive shaft (7), the centrifugal wheel (8) comprises a first guard plate (9) and a second guard plate (10), the vent pipe (6) passes through the first guard plate (9), the vent pipe (6) is rotatably connected to the first guard plate (9), the second guard plate (10) is sleeved on the drive shaft (7), and a centrifugal fan blade (11) is arranged between the second guard plate (10) and the first guard plate (9); A detachable filter plate is arranged inside the water vapor separation box (1), and the detachable filter plate comprises a first curved plate (12) and a second curved plate (13), and the first curved plate (12) and the second curved plate (13) are spliced to form a cylindrical filter plate; A T-shaped block (14) is fixedly connected to one side of the first arc plate (12) and the second arc plate (13) close to the venting pipe (6); a bearing (15) is sleeved on the venting pipe (6); a connecting plate (16) is symmetrically arranged on the outer layer of the bearing (15); a T-shaped slot (17) is provided on the connecting plate (16); the T-shaped block (14) is located inside the T-shaped slot (17); and the T-shaped block (14) and the T-shaped slot (17) are slidably connected. 2. The water vapor separation device for a steam boiler according to claim 1 is characterized in that a plurality of centrifugal blades (11) are provided and are distributed in a circular array around the axis of the drive shaft (7). 3. The water vapor separation device of a steam boiler according to claim 1 is characterized in that a semicircular connector (18) is fixedly connected to the side of the first arc plate (12) and the second arc plate (13) away from the vent pipe (6), and a bracket (19) is fixedly connected to the inside of the water vapor separation box (1). 4. The water vapor separation device of a steam boiler according to claim 3 is characterized in that a sleeve (20) is fixedly connected to one end of the bracket (19), the drive shaft (7) passes through the sleeve (20), and a limiting plate (21) is sleeved on the side of the sleeve (20) away from the centrifugal wheel (8). 5. The water vapor separation device of a steam boiler according to claim 4 is characterized in that the limit plate (21) is fixedly connected to the sleeve (20), a sliding plate (22) is sleeved on the sleeve (20), and the sliding plate (22) is slidably connected to the sleeve (20). 6. The water vapor separation device of a steam boiler according to claim 5 is characterized in that a spring (23) is sleeved on the sleeve (20), and the two ends of the spring (23) are respectively fixedly connected to the sliding plate (22) and the limit plate (21), and the side of the sliding plate (22) away from the limit plate (21) is fixedly connected to the limit ring (24), and the semicircular connecting piece (18) is located between the limit ring (24) and the sleeve (20). 7. The steam separation device of a steam boiler according to claim 1 is characterized in that one end of the drive shaft (7) passes through the steam separation box (1) and extends to the outside of the steam separation box (1), and the end of the drive shaft (7) located outside the steam separation box (1) is fixedly connected to a passive gear (25), one side of the steam separation box (1) is fixedly connected to a drive motor (26), and the output end of the drive motor (26) is fixedly connected to a drive gear (27), and the drive gear (27) and the passive gear (25) are meshed with each other. 8. The water vapor separation device of a steam boiler according to claim 7 is characterized in that a water retaining ring (28) is provided at one end of the exhaust pipe (3), and the water retaining ring (28) is used to prevent liquid water from flowing into the exhaust pipe (3); the inner surface of the exhaust pipe (3) is coated with an adsorption layer (29), and the adsorption layer (29) is a molecular sieve.