Boiler steam-water separation device

Abstract

The utility model relates to the technical field of boilers, in particular to a boiler steam-water separation device which comprises a shell, a separation chamber, a reboiling chamber and a drainage chamber are arranged in the shell from top to bottom, a separator is installed in the separation chamber, the bottom end of the separator is connected with a steam inlet pipe, and one end of the steam inlet pipe penetrates through the outer wall of the shell. A plurality of boiling heating pipes are vertically mounted in the reboiling chamber, the top ends of the boiling heating pipes are connected with the separation chamber, and the bottom ends of the boiling heating pipes are connected with the drainage chamber. In the boiler steam-water separation device, the steam-water separator is used for primarily separating steam through the separator in the separation chamber, so that most of water in the steam is effectively removed. And the boiling heating pipe in the reboiling chamber further heats and evaporates the separated liquid water, so that the residual moisture in the steam is reduced, and the dryness of the steam is remarkably improved. Due to the fact that moisture in the steam is effectively removed, energy loss caused by moisture carrying is reduced.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, and more specifically, to a boiler steam-water separation device. Background Technology

[0002] Small boilers commonly suffer from problems such as excessive water carryover in steam and poor steam dryness during operation. Existing steam-water separators mainly employ centrifugal separation and gravity settling to achieve steam-water separation.

[0003] However, even with the addition of other steam traps, incomplete mechanical separation of moisture from the steam still occurs, meaning the steam still contains water. This results in excessive water carryover in the steam, leading to a large amount of condensate and ultimately wasting energy. Utility Model Content

[0004] The purpose of this utility model is to provide a boiler steam-water separation device to solve the problem mentioned in the background art that existing steam-water separators mainly use centrifugal separation and gravity sedimentation to achieve steam-water separation.

[0005] To achieve the above objectives, this utility model provides a boiler steam-water separation device, including an outer shell. Inside the outer shell, from top to bottom, are respectively arranged a separation chamber, a reboiling chamber, and a drainage chamber. A separator is installed inside the separation chamber, and a steam inlet pipe is connected to the bottom end of the separator. One end of the steam inlet pipe penetrates the outer wall of the outer shell. Several boiling heating tubes are vertically installed inside the reboiling chamber. The top end of each boiling heating tube is connected to the separation chamber, and the bottom end of each boiling heating tube is connected to the drainage chamber. A steam outlet pipe is connected to the upper part of one side of the reboiling chamber, and a steam inlet pipe is connected to the lower part of one side of the reboiling chamber.

[0006] Preferably, the top of the housing is provided with a steam outlet.

[0007] Preferably, the separation chamber and the reboiler chamber are separated by a first partition, and the reboiler chamber and the drain chamber are separated by a second partition.

[0008] Preferably, a drain pipe is connected to one side of the bottom of the drain chamber, and a liquid level electrode is installed on the other side of the drain chamber.

[0009] Preferably, an automatic drain valve is installed at the bottom of the drainage chamber.

[0010] Preferably, the separator includes a cylindrical body with a top opening, a baffle installed inside the cylindrical body, and side openings provided on both sides of the baffle.

[0011] Preferably, an air inlet is provided in the middle of the bottom of the cylinder, the air inlet is connected to the steam inlet pipe, and mesh plates are provided on both sides of the bottom of the cylinder.

[0012] Preferably, the boiling heating tubes are arranged horizontally at equal intervals.

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

[0014] In this boiler steam-water separation device, the steam-water separator performs preliminary separation of water-laden steam through a separator in the separation chamber, effectively removing most of the moisture from the steam. The boiling heating tubes in the reboiling chamber further heat and evaporate the separated liquid water, reducing residual moisture in the steam and significantly improving its dryness.

[0015] Because moisture in the steam is effectively removed, energy loss caused by moisture carryover is reduced. At the same time, the reboiling chamber design allows the separated liquid water to be evaporated and reused, further improving energy efficiency and reducing energy waste.

[0016] The liquid level electrode installed in the drainage chamber can monitor the water level in real time. When the water level reaches the set value, the automatic drain valve will open automatically to drain the accumulated water, avoiding the tediousness and possible negligence of manual operation.

[0017] This steam-water separator features an integrated design encompassing the outer shell, separation chamber, reboiling chamber, and drain chamber, resulting in a compact structure and small footprint. Furthermore, the connections between components are simple and reliable, facilitating disassembly and maintenance. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the external structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the separator in this utility model;

[0021] The meanings of the labels in the diagram are as follows:

[0022] 1. Outer shell; 11. First partition; 12. Second partition; 13. Steam outlet; 2. Separation chamber; 3. Reboiler chamber; 31. Boiling heating tube; 32. Steam outlet pipe; 33. Steam inlet pipe; 4. Drainage chamber; 41. Drainage pipe; 42. Liquid level electrode; 43. Automatic drain valve; 5. Steam inlet pipe; 6. Separator; 61. Cylinder; 62. Baffle; 621. Side port; 63. Air inlet; 64. Mesh plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides a boiler steam-water separation device, such as... Figures 1-3 As shown, the device includes an outer shell 1. Inside the outer shell 1, from top to bottom, are a separation chamber 2, a reboiling chamber 3, and a drain chamber 4. A separator 6 is installed inside the separation chamber 2, with a steam inlet pipe 5 connected to its bottom end. One end of the steam inlet pipe 5 penetrates the outer wall of the outer shell 1. Several boiling heating tubes 31 are vertically installed inside the reboiling chamber 3. The top ends of the boiling heating tubes 31 are connected to the separation chamber 2, and the bottom ends are connected to the drain chamber 4. A steam outlet pipe 32 is connected to the upper part of one side of the reboiling chamber 3, and a steam inlet pipe 33 is connected to the lower part of one side of the reboiling chamber 3. The boiler steam-water separation device provided by this utility model achieves efficient steam-water separation through its ingenious structural design. Specifically, the separation chamber 2, reboiling chamber 3, and drain chamber 4, arranged from top to bottom inside the outer shell 1, constitute a clear functional division. The separator 6 inside the separation chamber 2 can effectively capture and separate moisture from the incoming steam, initially improving the dryness of the steam. The design of the steam inlet pipe 5 allows water vapor to smoothly enter the separation chamber 2 for processing.

[0025] The reboiling chamber 3 contains several boiling heating tubes 31, whose top ends are connected to the separation chamber 2 and their bottom ends to the drain chamber 4, enabling further heating and evaporation of the separated liquid water. This design not only makes full use of thermal energy but also improves the efficiency of steam reuse. Simultaneously, the lower steam inlet pipe 33 provides the necessary steam or heat energy input to the reboiling chamber 3, while the upper steam outlet pipe 32 on one side of the reboiling chamber 3 is used to discharge the steam from the reboiling chamber 3.

[0026] In this embodiment, a steam outlet 13 is provided at the top of the outer casing 1. The steam outlet 13 allows the dry steam, after separation and heating evaporation, to be smoothly discharged from the boiler steam-water separator for use in subsequent processes or equipment. This ensures steam flow and system continuity, and improves the overall operating efficiency of the boiler.

[0027] Specifically, the separation chamber 2 and the reboiler chamber 3 are separated by a first partition 11, and the reboiler chamber 3 and the drain chamber 4 are separated by a second partition 12. The design of the first partition 11 and the second partition 12 effectively isolates the separation chamber 2, the reboiler chamber 3, and the drain chamber 4, forming clear functional zones. This separation not only facilitates independent operation between each chamber but also prevents mutual interference between steam, moisture, and condensate, thus improving the separation efficiency and stability of the steam-water separator.

[0028] Furthermore, a drain pipe 41 is connected to one side of the bottom of the drain chamber 4, and a liquid level electrode 42 is installed on the other side of the drain chamber 4. The drain pipe 41 allows the water in the drain chamber 4 to be discharged in a timely manner, avoiding the impact of water accumulation on the performance of the steam-water separator. The liquid level electrode 42 can monitor the water level in the drain chamber 4 in real time, providing an accurate liquid level signal for the automatic control system, facilitating automatic drainage and liquid level control.

[0029] Furthermore, an automatic drain valve 43 is installed at the bottom of the drainage chamber 4. The automatic drain valve 43 is designed to automatically drain sewage from the drainage chamber 4. At the same time, it also helps to maintain stable pressure within the drainage chamber 4, improving the safety and reliability of the steam-water separator.

[0030] Furthermore, the separator 6 includes a cylindrical body 61 with an open top, and a baffle 62 is installed inside the cylindrical body 61. Side openings 621 are provided on both sides of the baffle 62. This design of the separator 6 allows water vapor to form a rotating airflow inside the cylindrical body 61 after entering the separation chamber 2. Guided by the baffle 62 and the side openings 621, effective separation of water vapor is achieved. This design improves separation efficiency and reduces the moisture content in the steam.

[0031] Furthermore, an air inlet 63 is provided in the middle of the bottom of the cylinder 61, and the air inlet 63 is connected to the steam inlet pipe 5. Mesh plates 64 are provided on both sides of the bottom of the cylinder 61. The design of the air inlet 63 allows water vapor to smoothly enter the cylinder 61 for separation. Water droplets that have been blocked fall from the mesh plates 64 and enter the reboiler 3.

[0032] Furthermore, the boiling heating tubes 31 are arranged horizontally at equal intervals. This horizontal, equally spaced arrangement of the boiling heating tubes 31 makes the heating within the reboiling chamber 3 more uniform, improving heating efficiency. This design also helps reduce thermal stress concentration and localized overheating, extending the service life of the boiling heating tubes 31. Simultaneously, the equal-interval arrangement also makes more efficient use of space within the reboiling chamber 3, improving the overall performance of the steam-water separator.

[0033] In use, the boiler steam-water separation device of this utility model first introduces steam carrying water into the cylinder 61 of the separator 6 through the steam inlet pipe 5. The air inlet 63 is located at the bottom center of the cylinder 61 to ensure that the steam can smoothly enter the separator 6.

[0034] When steam enters the cylinder 61, due to the design of the baffle 62 and side opening 621 inside the cylinder 61, the steam forms a rotating airflow inside the cylinder 61. The heavier water droplets are thrown towards the cylinder wall due to inertia and fall along the cylinder wall, entering the reboiler 3 through the mesh plate 64; while the lighter steam continues to rise, thus initially achieving steam-water separation.

[0035] The separated liquid water enters reboiling chamber 3 and exchanges heat with steam or heat energy entering reboiling chamber 3 through steam inlet pipe 33. Several boiling heating tubes 31 within reboiling chamber 3 are heated. The horizontally spaced arrangement of the boiling heating tubes 31 ensures uniform heating and improves heating efficiency. During heating, the liquid water is evaporated into steam, further increasing the dryness of the steam. The dried steam after heating and evaporation exits from the top of reboiling chamber 3 and enters separation chamber 2.

[0036] The drain chamber 4 is used to collect liquid water that has not completely evaporated in the reboiling chamber 3. The drain pipe 41 connected to one side of the bottom of the drain chamber 4 allows the accumulated water to be discharged in a timely manner, avoiding the impact of water accumulation on the performance of the steam-water separator. At the same time, the liquid level electrode 42 installed on the other side of the drain chamber 4 can monitor the water level in real time, providing an accurate liquid level signal to the automatic control system, ensuring that the automatic drain valve 43 opens at the appropriate time to automatically remove the accumulated water.

[0037] The internal structure of the outer casing 1 comprises a separation chamber 2, a reboiling chamber 3, and a drain chamber 4, arranged from top to bottom, forming a clear functional partition. Separation chamber 2 is responsible for the initial separation of the steam-water mixture; reboiling chamber 3 is responsible for heating and evaporating the separated liquid water; and drain chamber 4 is responsible for collecting and discharging any liquid water that has not completely evaporated. A first partition 11 and a second partition 12 effectively isolate the three chambers, enabling independent operation of each chamber. This design not only improves the separation efficiency and stability of the steam-water separator but also facilitates maintenance and repair.

[0038] Finally, it should be noted that the electronic components in the liquid level electrode 42 and other components in this embodiment are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components are connected by wires. The specific connection method should refer to the working order of each electrical component in the above working principle to complete the electrical connection. All of these are technologies known in the art.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A boiler steam-water separation device comprising a casing (1), characterized in that: The inside of the shell (1) is provided with a separation chamber (2), a reboiling chamber (3) and a drainage chamber (4) from top to bottom, respectively, the inside of the separation chamber (2) is provided with a separator (6), the bottom end of the separator (6) is connected with a steam inlet pipe (5), one end of the steam inlet pipe (5) penetrates through the outer wall of the shell (1), the inside of the reboiling chamber (3) is vertically provided with a plurality of boiling heating pipes (31), the top end of the boiling heating pipe (31) is connected with the separation chamber (2), the bottom end of the boiling heating pipe (31) is connected with the drainage chamber (4), one side of the upper part of the reboiling chamber (3) is connected with a steam outlet pipe (32), one side of the lower part of the reboiling chamber (3) is connected with a steam inlet pipe (33).

2. A boiler water separation device according to claim 1, characterised in that: The top of the shell (1) is provided with a steam outlet (13).

3. A boiler water separation device according to claim 1, characterised in that: The separation chamber (2) and the reboiling chamber (3) are separated by a first partition plate (11), the reboiling chamber (3) and the drainage chamber (4) are separated by a second partition plate (12).

4. The boiler water separation device of claim 1, wherein: One side of the bottom of the drainage chamber (4) is connected with a drainage pipe (41), the other side of the drainage chamber (4) is provided with a liquid level electrode (42).

5. The boiler water separation device of claim 1, wherein: The bottom of the drainage chamber (4) is provided with an automatic blowdown valve (43).

6. The boiler water separation device of claim 1, wherein: The separator (6) comprises a cylinder (61) with an open top, the inside of the cylinder (61) is provided with a baffle (62), both sides of the baffle (62) are provided with side openings (621).

7. A boiler water separation device according to claim 6, characterised in that: The bottom of the cylinder (61) is provided with an air inlet (63) in the middle, the air inlet (63) is connected with the steam inlet pipe (5), both sides of the bottom of the cylinder (61) are provided with a mesh plate (64).

8. The boiler water separation device of claim 1, wherein: The boiling heating pipes (31) are arranged in a horizontal and equidistant manner.

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