Drainage device for buried steam pipeline

Abstract

The utility model discloses a buried steam pipeline drainage device which comprises a drainage pipe, the end portion of the drainage pipe is communicated with the lower end of a steam pipeline, and the drainage pipe is in an L shape. The device further comprises a filtering structure, a drain valve and a steam guide pipe. The filtering structure is connected to the drain pipe; comprising a shell I, a movable pipe and a shell II, the movable pipe is rotationally connected between the first shell and the second shell. A filter plate is arranged in one end, close to the movable pipe, of the shell II; a scraper capable of being in contact with the filter plate is fixedly connected to the inner side surface of the movable pipe; the steam guide pipe is connected to the drain pipe and crosses the filtering structure; and a plurality of radiating fins are arranged on the outer side of the steam guide pipe. According to the utility model, condensate water can be filtered before entering the drain valve, impurities in the condensate water are filtered, and the problem that the filter screen of the drain valve is blocked because the impurities are accumulated for a long time after entering the drain valve is avoided; the filter plate can be scraped irregularly by rotating the disc and the movable pipe, so that the filter plate is prevented from being uniformly paved with impurities to influence the flow of condensate water.

Description

Technical Field

[0001] This utility model relates to the field of steam pipeline technology, specifically to a drainage device for buried steam pipelines. Background Technology

[0002] Steam pipe condensate drainage refers to the process of removing condensate from the pipes of a steam system using a condensate draining device to ensure the normal operation and efficiency of the system. Condensate buildup in pipes can cause water hammer, damaging pipes and equipment. Timely drainage of condensate reduces heat loss and improves the thermal efficiency of the steam system.

[0003] Float-type free-flow steam traps are commonly used steam trap components in steam pipelines. They automatically open and close based on the condensate level, effectively draining condensate. However, in existing technology, although impurities carried in the condensate are blocked by the stainless steel filter inside the valve, the filter becomes clogged and difficult to clean after prolonged use, requiring disassembly of the valve body. Furthermore, when condensate is discharged, hot steam follows into the valve body. The temperature-sensing component inside the valve detects the temperature rise and closes the steam passage, causing the temperature inside the valve and the condensate to rise, which affects the condensate pipeline and storage device. Therefore, there is room for technological improvement. Utility Model Content

[0004] This invention aims to solve the problems mentioned above, such as the difficulty in cleaning impurities in condensate that accumulate on the stainless steel filter screen inside the valve body, and the technical problems caused by hot steam leading to an increase in the temperature of the valve body and condensate. It provides a drainage device for buried steam pipelines.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a buried steam pipeline drainage device, including a drainage pipe, the end of which is connected to the lower end of the steam pipeline, and the drainage pipe is L-shaped; further comprising:

[0006] A filter structure is connected to a drain pipe and includes a first outer shell, a movable pipe, and a second outer shell. The movable pipe is rotatably connected between the first and second outer shells. A filter plate is provided inside the second outer shell near the movable pipe, and a scraper that can contact the filter plate is fixed to the inner side of the movable pipe.

[0007] Steam trap; connected to the drain pipe;

[0008] A steam duct; connected to a drain pipe and passing over a filter structure; several heat dissipation fins are arranged on the outer side of the steam duct.

[0009] Furthermore, each of the outer shell 1 and outer shell 2 is provided with a flange 1 at one end that is far apart from each other, and the drain pipe is provided with a flange 2 at the connection end with outer shell 1 and outer shell 2, which corresponds to flange 1. Flange 2 and flange 1 are connected by bolts.

[0010] Furthermore, a disc is provided on the outer side of the movable tube.

[0011] Furthermore, both ends of the movable tube are provided with limiting rings, and the opposite sides of the outer shell one and outer shell two are provided with annular grooves that can accommodate the limiting rings, and sealed bearings are provided in the annular grooves.

[0012] Several fasteners are provided between the outer shell 1 and the outer shell 2, and the fasteners are located on the outside of the disc.

[0013] Furthermore, the scraper is made of composite rubber material.

[0014] Furthermore, the steam conduit gradually slopes downwards from the inlet end to the outlet end.

[0015] The advantages of this utility model compared with the prior art are as follows:

[0016] It can filter condensate before it enters the steam trap, removing impurities from the condensate and preventing them from accumulating and clogging the filter screen after entering the steam trap. The filter plate can be scraped periodically by rotating the disc and moving tube to prevent impurities from spreading evenly on the filter plate and affecting the flow of condensate.

[0017] It is equipped with a steam branch pipe to cool the steam that is discharged along with the condensate, so that it becomes room temperature air and enters the drain pipe, thus preventing heat from accumulating in the drain valve and avoiding potential damage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

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

[0020] Figure 3 This is a schematic diagram of the cross-section of the scraper of this utility model.

[0021] As shown in the figure: 1. Drain pipe, 2. Outer shell one, 3. Movable pipe, 4. Outer shell two, 5. Disc, 6. Limiting ring, 7. Annular groove, 8. Fixing component, 9. Filter plate, 10. Scraper, 11. Drain valve, 12. Steam pipe, 13. Heat dissipation fins. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Example 1, in conjunction with Appendix Figure 1 A buried steam pipeline drainage device includes a drainage pipe 1, the end of which is connected to the lower end of the steam pipeline, and the drainage pipe 1 is L-shaped; the drainage pipe 1 is used to guide condensate to flow out to the drainage valve.

[0024] Combined with appendix Figure 1 , 2 It also includes a filter structure; connected to the drain pipe 1; specifically, the ends of the outer shell 1 2 and the outer shell 2 4 that are far apart from each other are provided with flange 1, and the connection ends of the drain pipe 1 and the outer shell 1 2 and the outer shell 2 4 are provided with flange 2 corresponding to flange 1. Flange 2 and flange 1 are connected by bolts, and the filter structure can be disassembled through the flanges, which is convenient for subsequent maintenance.

[0025] Based on the above structure, it includes a first outer shell 2, a movable tube 3, and a second outer shell 4; the movable tube 3 is rotatably connected between the first outer shell 2 and the second outer shell 4; specifically, both ends of the movable tube 3 are provided with limiting rings 6, and the opposite sides of the first outer shell 2 and the second outer shell 4 are provided with annular grooves 7 that can accommodate the limiting rings 6, and sealed bearings are provided in the annular grooves 7; the rotation of the movable tube 3 can be realized through the limiting rings 6, the annular grooves 7 and the corresponding sealed bearings.

[0026] A disc 5 is provided on the outside of the movable tube 3 to facilitate the application of force to drive the movable tube 3 to rotate; a number of fixing parts 8 are provided between the outer shell 2 and the outer shell 4. The fixing parts 8 are located on the outside of the disc 5 and are used to fix the outer shell 2 and the outer shell 4.

[0027] Based on the above structure, a filter plate 9 is provided inside the outer shell 4 near the end of the movable tube 3, and a scraper 10 that can contact the filter plate 9 is fixed to the inner side of the movable tube 3. The scraper 10 is made of composite rubber. Thus, when the movable tube 3 is rotated by the disc 5, the scraper 10 will scrape the filter plate 9, causing it to accumulate near the scraper 10, thus preventing impurities from being evenly attached to the filter plate 9 and clogging the condensate.

[0028] Combined with appendix Figure 1 It also includes a steam trap 11; connected to the steam trap 1, used to drain condensate and excess air;

[0029] Combined with appendix Figure 1 It also includes a steam conduit 12; connected to the drain pipe 1 and passing over the filter structure; a number of heat dissipation fins 13 are arranged on the outside of the steam conduit 12, and the multiple heat dissipation fins 13 assist the heat exchange of high temperature steam, so that it reduces the temperature when entering the drain valve 11, and avoids long-term high temperature accumulation that could damage the drain valve 11; the steam conduit 12 gradually slopes downward from the input end to the output end, so that when some water vapor condenses into condensate, it can enter the drain pipe 1 along the inclined steam conduit 12.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A drainage device for buried steam pipelines, characterized in that: The system includes a drain pipe (1), the end of which is connected to the lower end of a steam pipe, and the drain pipe (1) is L-shaped; it also includes: A filter structure is connected to a drain pipe (1); it includes a first outer shell (2), a movable pipe (3), and a second outer shell (4); the movable pipe (3) is rotatably connected between the first outer shell (2) and the second outer shell (4); a filter plate (9) is provided inside the second outer shell (4) near the movable pipe (3), and a scraper (10) that can contact the filter plate (9) is fixedly connected to the inner side of the movable pipe (3); Steam trap (11); connected to steam drain pipe (1); Steam conduit (12); connected to the drain pipe (1) and passing over the filter structure; a number of heat dissipation fins (13) are arranged on the outside of the steam conduit (12).

2. The buried steam pipeline drainage device according to claim 1, characterized in that: The outer shell 1 (2) and outer shell 2 (4) are each provided with a flange 1 at their ends that are far apart from each other. The drain pipe (1) is provided with a flange 2 at the connection end with the outer shell 1 (2) and outer shell 2 (4) that corresponds to the flange 1. The flange 2 and flange 1 are connected by bolts.

3. The buried steam pipeline drainage device according to claim 1, characterized in that: A disc (5) is provided on the outside of the movable tube (3).

4. A buried steam pipeline drainage device according to claim 3, characterized in that: Both ends of the movable tube (3) are provided with limiting rings (6), and the opposite sides of the outer shell one (2) and outer shell two (4) are provided with annular grooves (7) that can accommodate the limiting rings (6), and sealed bearings are provided in the annular grooves (7); A number of fasteners (8) are provided between the outer shell one (2) and the outer shell two (4), and the fasteners (8) are located outside the disk (5).

5. A buried steam pipeline drainage device according to claim 1, characterized in that: The scraper (10) is made of composite rubber.

6. A buried steam pipeline drainage device according to claim 1, characterized in that: The steam conduit (12) gradually slopes downward from the inlet to the outlet.

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