Water jacket type steam generator based on enhanced steam-water separation mechanism

Abstract

The invention relates to the field of steam generators, in particular to a water jacket type steam generator based on an enhanced steam-water separation mechanism, which comprises an outer wrapping cylinder, a metal fiber burner is arranged in the outer wrapping cylinder close to the middle, and a fuel conveying unit connected with the metal fiber burner is arranged at the upper end of the outer wrapping cylinder. A plurality of sleeves in an annular array are arranged between the outer wrapping cylinder and the metal fiber burner, and a blocking assembly for blocking the sleeves and a cleaning assembly for cleaning the sleeves are arranged on the outer sides of the sleeves; according to the invention, thorough cleaning of scale in the sleeve is ensured through a mode of first soaking and then flushing, that is to say, the air cylinder is firstly controlled to reach a blocking position, the sleeve is soaked to remove scale, then the air cylinder is controlled to be a cleaning position, a cleaning agent in the sleeve is subjected to high-pressure cleaning, the cleaning agent is recovered and treated, and in the process of continuous steam generation, the scale in the sleeve is removed. Influence of incrustation on steam generation is reduced, operation efficiency of the device is improved, and steam-water separation is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of steam generators, and more particularly to a water-jacketed steam generator based on an enhanced steam-water separation mechanism. Background Art

[0002] At present, gas steam generators are mainly divided into modular external steam-water separation, modular non-steam-water separation, volumetric fire tube, vertical water tube and full premixed coil external steam-water separation. The above-mentioned steam generator structures have the following disadvantages: modular pipelines are complex, prone to scaling and clogging, and have high nitrogen oxide emissions;

[0003] The service life of the circulating water pump of the external steam-water separator is short. The gap between the tubes of the ordinary vertical tube steam generator is large, the heat exchange area is small, the steam production speed is slow, the thermal efficiency is low, the exhaust temperature is extremely high, and the rated steam capacity of a single unit is small due to the water capacity limitation.

[0004] For example, the patent document discloses a fully premixed inverted combustion water-jacketed riser steam generator with announcement number CN211260740U. The patent document achieves safety, inspection-free, low-nitrogen, high efficiency, and convenience and speed through the coordinated operation of various components. However, due to the influence of water quality, scale will accumulate on the water jacket after long-term use, reducing the space for steam to pass through the water jacket. Conventional cleaning methods require shutting down the equipment, and it is impossible to complete the cleaning of the water jacket during the continuous steam generation process. The cleaning liquid can also be recycled and reused to reduce the impact of scale on steam generation, improve the operating efficiency of the device, and enhance steam-water separation. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a water-jacketed steam generator based on an enhanced steam-water separation mechanism.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water-jacketed steam generator based on an enhanced steam-water separation mechanism, comprising an outer tube, a metal fiber burner disposed near the middle of the outer tube, a fuel delivery unit connected to the metal fiber burner disposed at the upper end of the outer tube, a plurality of sleeves arranged in an annular array between the outer tube and the metal fiber burner, and a blocking assembly for blocking the sleeve and a cleaning assembly for cleaning the sleeve disposed on the outer side of the sleeve;

[0007] The plugging assembly includes a connecting rod arranged inside the outer tube, the top of the connecting rod extends to the top of the water casing and is fixedly connected to an upper plugging head, the bottom of the connecting rod extends to the outside of the outer tube, and an inner ring column is fixedly provided on the outer wall below the connecting rod, and a water box is provided in the middle of multiple outer tubes, and the output end of the water box is connected to the casing, and the inner ring column is located above the output end of the water box.

[0008] Furthermore, two groups of semicircular rings are provided at the bottom of the multiple connecting rods, a cylinder is provided at the bottom of the semicircular ring, and a detergent tank for storing detergent is provided at the bottom of the cylinder, and a clean water tank is provided at the bottom of the detergent tank. A drain pipe is inserted on the bottom side wall of the sleeve, and the output end of the drain pipe extends to the outside of the outer tube, and a control valve is provided on its outer wall.

[0009] Furthermore, a sewage pipe is inserted into the bottom of the sleeve, a control valve 2 is provided on the outer wall of the sewage pipe, and the output end of the sewage pipe extends to the detergent bin.

[0010] Furthermore, an insulation ring is provided on the inner wall of the outer sleeve, and the insulation ring is located on the outside of the sleeve, and an inner cavity is formed between the insulation ring and the inner wall of the outer sleeve. An inner smoke pipe is also provided inside the sleeve, and the input end of the inner smoke pipe extends to the outside of the sleeve, and the output end of the inner smoke pipe is connected to a smoke outlet pipe, and the output end of the smoke outlet pipe extends into the inner cavity, and a smoke exhaust pipe is provided at the output end of the inner cavity.

[0011] Furthermore, a partition is provided inside the outer tube, which forms a closed upper steam drum at the upper end of the outer tube. A steam outlet is provided on the outer tube, and a steam-water separator is provided at a position corresponding to the steam outlet inside the outer tube.

[0012] Furthermore, the fuel delivery unit includes a variable frequency fan connected to the metal fiber burner, and the variable frequency fan is connected to a gas proportional valve.

[0013] Furthermore, the cleaning component includes a pressing plate vertically arranged on the outer wall of the protruding end of the cylinder, two groups of limiting columns are symmetrically arranged above the detergent chamber, a piston column is slidingly arranged inside the limiting column, a through tube is vertically opened inside the piston column, and a lifting rod is arranged on the top of the piston column, and the top of the lifting rod is movable through to the outside of the limiting column and fixedly connected to the pressing plate.

[0014] Furthermore, the side walls of the limiting column are connected with a cleaning pipe and a clean water pipe in sequence from top to bottom. The side walls of the limiting column are also connected with a delivery pipe 1. The output end of the delivery pipe 1 is provided with a liquid pump, and the output end of the liquid pump is provided with a delivery pipe 2. An annular pipe is fixedly provided on the outer wall above the outer tube, and the output end of the delivery pipe 2 extends into the annular pipe. The annular pipe and the sleeve are connected through a liquid pipe.

[0015] Furthermore, a filter ring is provided on the outer wall of the detergent bin below the sewage pipe.

[0016] The technical effects and advantages of the present invention are as follows:

[0017] 1. The present invention controls the extended ends of a group of cylinders to retract to a blocking position, so that the upper blocking head blocks the top of the sleeve and the inner ring column below blocks the input end of the water box. The cylinder drives the pressing plate to move downward, so that the through pipe inside the piston column is connected with the cleaning pipe, and the detergent inside the detergent bin is delivered to the annular pipe through the delivery pipe 1 and the delivery pipe 2, and then delivered to the sleeve, soaking the interior of half of the sleeve to remove scale. After the soaking is completed, the sewage is discharged into the top of the filter ring, and the scale in the sewage is filtered through the filter ring to separate the detergent for recycling.

[0018] 2. The present invention controls the extended end of the cylinder to continue to retract to the cleaning position. The upper plug is made of rubber and continues to block the top of the sleeve, while the bottom of the inner ring column below contacts the bottom wall of the sleeve. The piston column continues to move downward, allowing the through pipe to connect with the clean water pipe, and transporting clean water to the inside of the water jacket to clean the detergent, ensuring that the use of the water jacket is not affected, and strengthening the steam-water separation. In the process of continuous steam generation, not only the water jacket is cleaned, but also the cleaning liquid is recycled and reused, reducing the impact of scale on steam generation, improving the operating efficiency of the device, and strengthening the steam-water separation.

[0019] 3. The present invention ensures that the scale in the casing is thoroughly cleaned by soaking first and then flushing. That is, the cylinder is first controlled to the blocking position, the casing is soaked to remove scale, and then the cylinder is controlled to the cleaning position, the cleaning agent in the casing is cleaned with high pressure, and the cleaning agent is recovered and processed. During the process of continued steam generation, the influence of scale on steam generation is reduced, the operating efficiency of the device is improved, and the steam-water separation is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the appearance of the overall structure of the present invention.

[0021] Figure 2 It is a three-dimensional schematic diagram of the internal structure of the outer tube in the present invention.

[0022] Figure 3 It is a structural stereogram of the upper part of the blocking component in the present invention.

[0023] Figure 4 It is a structural stereogram of the lower part of the blocking component in the present invention.

[0024] Figure 5 It is a structural stereogram of the cleaning component in the present invention.

[0025] Figure 6 This is a front view of the internal structure of the limiting column in the present invention.

[0026] Figure 7 It is a three-dimensional diagram of the filter ring in the present invention.

[0027] The accompanying drawings are marked as follows: 1. outer tube; 2. upper steam drum; 4. variable frequency fan; 5. gas proportional valve; 6. steam-water separator; 7. steam outlet; 11. filter ring; 13. metal fiber burner; 14. detergent tank; 15. clean water tank; 18. insulation ring; 19. water box; 20. exhaust pipe; 31. upper plug; 32. sleeve; 33. connecting rod; 34. inner smoke pipe; 35. smoke outlet pipe; 36. inner ring column; 37. drain pipe; 38. semicircular ring; 39. cylinder; 310. sewage pipe; 41. limiting column; 42. piston column; 43. through pipe; 44. delivery pipe 1; 45. lifting rod; 46. pressing plate; 47. cleaning pipe; 48. clean water pipe; 49. liquid pump; 410. delivery pipe 2; 411. annular pipe. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figure 1-Figure 7 As shown, in view of the influence of water quality in the existing technology, scale will accumulate on the water jacket after long-term use, reducing the space for steam to pass through the water jacket. Conventional cleaning methods also require shutting down the equipment, and it is impossible to complete the cleaning of the water jacket during the continuous generation of steam. This problem can be solved by the following solution;

[0030] The water-jacketed steam generator based on the enhanced steam-water separation mechanism in this embodiment includes an outer tube 1, a metal fiber burner 13 is provided near the middle of the outer tube 1, a fuel delivery unit connected to the metal fiber burner 13 is provided at the upper end of the outer tube 1, and a plurality of sleeves 32 in an annular array are provided between the outer tube 1 and the metal fiber burner 13. The outer sides of the sleeves 32 are provided with a blocking component for blocking the sleeves and a cleaning component for cleaning the sleeves.

[0031] A partition is provided inside the outer tube 1, which forms a sealed upper steam drum 2 at the upper end of the outer tube 1. The upper steam drum 2 is used to store steam.

[0032] The plugging assembly includes a connecting rod 33 disposed inside the outer tube 1. The top of the connecting rod 33 extends to the top of the water sleeve 32 and is fixedly connected to the upper plug head 31 made of rubber. The bottom of the connecting rod 33 extends to the outside of the outer tube 1, and an inner ring column 36 is fixedly provided on the outer wall below the connecting rod 33. A water box 19 is provided in the middle of the multiple outer tubes 1, and the output end of the water box 19 is connected to the sleeve 32. The inner ring column 36 is located above the output end of the water box 19.

[0033] Two groups of semicircular rings 38 are provided at the bottom of the multiple connecting rods 33. One group of semicircular rings 38 connects half of the connecting rods 33. A cylinder 39 is provided at the bottom of the semicircular rings 38. A detergent tank 14 for storing detergent is provided at the bottom of the cylinder 39. A clean water tank 15 is provided at the bottom of the detergent tank 14. A drain pipe 37 is inserted into the bottom side wall of the sleeve 32. The output end of the drain pipe 37 extends to the outside of the outer tube 1, and a control valve 1 is provided on its outer wall.

[0034] A drain pipe 310 is inserted into the bottom of the sleeve 32 , and a second control valve is provided on the outer wall of the drain pipe 310 . The output end of the drain pipe 310 extends to the detergent tank 14 .

[0035] It should be supplemented here that: an insulation ring 18 is further provided on the inner wall of the outer tube 1, and the insulation ring 18 is located on the outside of the sleeve 32, and an inner cavity is formed between the insulation ring 18 and the inner wall of the outer sleeve for insulating the interior of the outer tube 1. An inner smoke pipe 34 is further provided inside the sleeve 32, and the input end of the inner smoke pipe 34 extends to the outside of the sleeve 32, and the output end of the inner smoke pipe 34 is connected to a smoke outlet pipe 35, and the output end of the smoke outlet pipe 35 extends into the inner cavity, and the output end of the inner cavity is provided with a smoke exhaust pipe 20;

[0036] It should be noted that: a steam outlet 7 is provided on the outer tube 1, and a comb-shaped steam-water separator 6 is provided in the outer tube 1 at a position corresponding to the steam outlet 7; the fuel delivery unit includes a variable frequency fan 4 connected to the metal fiber burner 13, and the variable frequency fan 4 is connected to the gas proportional valve 5;

[0037] The cleaning assembly includes a pressing plate 46 vertically mounted on the outer wall of the protruding end of the cylinder 39. Two sets of limiting posts 41 are symmetrically arranged above the detergent chamber 14. A piston post 42 is slidably mounted inside the limiting post 41. A through pipe 43 is vertically opened inside the piston post 42. A lifting rod 45 is mounted on the top of the piston post 42. The top of the lifting rod 45 movably passes through the outside of the limiting post 41 and is fixedly connected to the pressing plate 46.

[0038] The side walls of the limiting column 41 are connected to a cleaning pipe 47 and a clean water pipe 48 in sequence from top to bottom. A delivery pipe 1 44 is also connected to the side wall of the limiting column 41. A liquid pump 49 is provided at the output end of the delivery pipe 1 44. A delivery pipe 2 410 is provided at the output end of the liquid pump 49. An annular pipe 411 is fixedly provided on the outer wall above the outer shell 1. The output end of the delivery pipe 2 410 extends into the annular pipe 411. The annular pipe 411 is connected to the sleeve 32 through a liquid pipe. A one-way valve is provided on the outside of the liquid pipe.

[0039] The extended ends of a set of cylinders 39 are controlled to retract to a blocking position. At this time, the upper blocking head 31 blocks the top of the sleeve 32, and the inner ring column 36 below blocks the input end of the water box 19. At this time, the bottom of the inner ring column 36 is not connected to the bottom of the sleeve 32. The cylinder 39 drives the pressing plate 46 to move downward, allowing the through pipe 43 inside the piston column 42 to communicate with the cleaning pipe 47. The liquid pump 49 is controlled to work, and the detergent inside the detergent tank 14 is delivered to the annular pipe 411 through the delivery pipe 1 44 and the delivery pipe 2 410, and then delivered to the sleeve 32, soaking the interior of half of the sleeve 32 to remove scale;

[0040] The extended end of the control cylinder 39 continues to retract to the cleaning position. At this time, the upper plug 31, which is made of rubber, continues to block the top of the sleeve 32, while the bottom of the inner ring column 36 below contacts the bottom inner wall of the sleeve 32. The piston column 42 continues to move downward, allowing the through pipe 43 to connect with the clean water pipe 48. By restarting the liquid pump 49, clean water is delivered to the interior of the water jacket to clean the detergent.

[0041] Example 2: Please refer to Figure 7 As shown, the problem of cleaning the water jacket 32 and recycling the cleaning liquid can be solved by the following solution;

[0042] In this embodiment, a filter ring 11 is provided on the outer wall of the detergent chamber 14 below the drain pipe 310 for filtering and recovering the detergent. After soaking is completed, the second control valve on the drain pipe 310 is opened to allow the sewage to flow into the filter ring 11. The filter ring 11 filters the scale in the sewage, separating the detergent for recycling.

[0043] It should be explained here that: a water supply port is provided on one side of the outer tube 1, which extends into the outer tube 1 through a pipe and communicates with one side of the bottom water box 19 for water supply, and a sewage outlet is provided on the other side of the outer tube 1, which extends into the outer tube 1 through a pipe and communicates with the other side of the bottom water box 19 for sewage discharge. The above belongs to the prior art and is not shown in the figure;

[0044] Working principle:

[0045] Step 1: When cleaning the sleeve 32, control the extended ends of a group of cylinders 39 to retract to the blocking position. At this time, the upper blocking head 31 blocks the top of the sleeve 32, and the inner ring column 36 below blocks the input end of the water box 19. At this time, the bottom of the inner ring column 36 is not connected to the bottom of the sleeve 32. The cylinder 39 drives the pressing plate 46 to move downward, so that the through pipe 43 inside the piston column 42 is connected to the cleaning pipe 47, and the liquid pump 49 is controlled to work, and the detergent inside the detergent tank 14 is delivered to the annular pipe 411 through the delivery pipe 1 44 and the delivery pipe 2 410, and then delivered to the sleeve 32, soaking the interior of half of the sleeve 32 to remove scale. After the soaking is completed, open the control valve 2 on the drain pipe 310, so that the sewage is discharged into the top of the filter ring 11, and the scale in the sewage is filtered by the filter ring 11 to separate the detergent for recycling;

[0046] Step 2: Next, the extended end of the control cylinder 39 continues to retract to the cleaning position. At this time, the upper plug 31, which is made of rubber, continues to block the top of the sleeve 32, while the bottom of the inner ring column 36 below contacts the bottom inner wall of the sleeve 32. The piston column 42 continues to move downward, allowing the through pipe 43 to connect with the clean water pipe 48. By restarting the liquid pump 49, clean water is delivered to the inside of the water jacket to clean the detergent. During cleaning, the control valve 1 on the drain pipe 37 is always kept open to ensure the use of the water jacket and enhance the separation of steam and water.

[0047] Step 3: After the cleaning is completed, the extended end of the cylinder 39 is controlled to extend and reset, and the steam generation work is continued. There is no need to shut down the device to clean the inner wall of half of the sleeve 32. The cleaning work of the other half of the sleeve 32 is continued according to the above steps. During the continuous generation of steam, not only the water sleeve 32 is cleaned, but also the cleaning liquid is recycled and reused, thereby reducing the impact of scale on steam generation, improving the operating efficiency of the device, and strengthening steam-water separation.

[0048] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A water-jacketed steam generator based on an enhanced steam-water separation mechanism comprises an outer tube (1), a metal fiber burner (13) is provided near the middle of the outer tube (1), and a fuel delivery unit connected to the metal fiber burner (13) is provided at the upper end of the outer tube (1), characterized in that: A plurality of sleeves (32) in an annular array are provided between the outer tube (1) and the metal fiber burner (13); a blocking component for blocking the sleeve and a cleaning component for cleaning the sleeve are provided on the outside of the sleeve (32); The plugging assembly comprises a connecting rod (33) arranged inside the outer tube (1), the top of the connecting rod (33) extends to the top of the water casing (32) and is fixedly connected to an upper plugging head (31), the bottom of the connecting rod (33) extends to the outside of the outer tube (1), and an inner ring column (36) is fixedly arranged on the outer wall below the connecting rod (33), a water box (19) is arranged in the middle of the plurality of outer tubes (1), and the output end of the water box (19) is connected to the casing (32), and the inner ring column (36) is located above the output end of the water box (19).

2. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 1, characterized in that: Two groups of semicircular rings (38) are provided at the bottom of the plurality of connecting rods (33), a cylinder (39) is provided at the bottom of the semicircular rings (38), and a detergent bin (14) for storing detergent is provided at the bottom of the cylinder (39), and a clean water bin (15) is provided at the bottom of the detergent bin (14), a drain pipe (37) is inserted on the bottom side wall of the sleeve (32), the output end of the drain pipe (37) extends to the outside of the outer tube (1), and a control valve 1 is provided on the outer wall thereof.

3. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 2, characterized in that: A sewage pipe (310) is inserted into the bottom of the sleeve (32), a second control valve is provided on the outer wall of the sewage pipe (310), and the output end of the sewage pipe (310) extends to the detergent bin (14).

4. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 3, characterized in that: A heat preservation ring (18) is further provided on the inner wall of the outer sleeve (1), and the heat preservation ring (18) is located outside the sleeve (32), and an inner cavity is formed between the heat preservation ring (18) and the inner wall of the outer sleeve. An inner smoke pipe (34) is further provided inside the sleeve (32), and the input end of the inner smoke pipe (34) extends to the outside of the sleeve (32), and the output end of the inner smoke pipe (34) is connected to a smoke outlet pipe (35), and the output end of the smoke outlet pipe (35) extends into the inner cavity, and a smoke exhaust pipe (20) is provided at the output end of the inner cavity.

5. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 1, characterized in that: A partition is provided inside the outer tube (1), and the partition forms a sealed upper steam drum (2) at the upper end of the outer tube (1). A steam outlet (7) is provided on the outer tube (1), and a steam-water separator (6) is provided at a position corresponding to the steam outlet (7) inside the outer tube (1).

6. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 1, characterized in that: The fuel delivery unit comprises a variable frequency fan (4) connected to the metal fiber burner (13), and a gas proportional valve (5) is connected to the variable frequency fan (4).

7. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 1, characterized in that: The cleaning component includes a pressing plate (46) vertically arranged on the outer wall of the protruding end of the cylinder (39), two groups of limiting columns (41) are symmetrically arranged above the cleaning agent bin (14), a piston column (42) is slidably arranged inside the limiting column (41), a through pipe (43) is vertically opened inside the piston column (42), and a lifting rod (45) is arranged on the top of the piston column (42), and the top of the lifting rod (45) is movably passed through the outside of the limiting column (41) and fixedly connected to the pressing plate (46).

8. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 7, characterized in that: The side wall of the limiting column (41) is connected to a cleaning pipe (47) and a clean water pipe (48) in sequence from top to bottom. The side wall of the limiting column (41) is also connected to a delivery pipe (44). The output end of the delivery pipe (44) is provided with a liquid pump (49). The output end of the liquid pump (49) is provided with a delivery pipe (410). An annular pipe (411) is fixedly provided on the outer wall above the outer tube (1). The output end of the delivery pipe (410) extends into the annular pipe (411). The annular pipe (411) and the sleeve (32) are connected through a liquid pipe.

9. The water-jacketed steam generator based on the enhanced steam-water separation mechanism according to claim 8, characterized in that: A filter ring (11) is provided on the outer wall of the detergent bin (14) below the sewage discharge pipe (310).

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