Drainage structure of buried steam pipeline

Abstract

The utility model relates to a drainage structure of a buried steam pipeline, which comprises a perforated plate arranged at the bottom of the buried steam pipeline, a first seamless tee joint arranged below the perforated plate and used for discharging condensate water flowing through the perforated plate, the first seamless tee joint is communicated to a steam trap through a pipeline, and a second seamless tee joint is arranged on the pipeline. A first flange type gate valve and a stop valve are arranged on the pipeline and located on the two sides of the second seamless tee joint respectively, the stop valve is located between the second seamless tee joint and the steam trap, and the second seamless tee joint is further connected with a second flange type gate valve used for cutting off or connecting condensation water in the pipeline. According to the utility model, the perforated plate and the first seamless tee joint are arranged at the bottom of the buried steam pipeline and are matched with the pipeline to be communicated to the steam trap, so that condensed water in the steam pipeline can be discharged in time, the water attack phenomenon is prevented, and the purposes of protecting the safe operation of the pipeline and equipment are achieved; meanwhile, the steam utilization efficiency can be improved, and energy waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal heating, in particular to a buried steam pipeline drainage structure. Background Art

[0002] As an important heating method, the invention of the steam engine and the rise of the industrial revolution in the late 18th century and the early 19th century gave birth to the development of the steam heating system. The steam heating system is a system that supplies heat in the form of steam, carrying heat from the heat source and delivering it to users through the heat network. Steam heating can easily meet the heating needs of various industrial processes. Moreover, the specific gravity of steam is small, so it will not generate excessive static pressure in high-rise buildings; the flow velocity in the pipeline is greater than that of water, and the heating system can be started quickly; the heat transfer efficiency in the heat exchange equipment is relatively high. Steam heating is also widely used in industrial production, such as in industries like food processing, chemical industry, textile, medicine, and papermaking.

[0003] Due to the unstable operation load of the steam pipe network, and even often having intermittent operation conditions, condensate will be generated in the pipeline. If the condensate is not discharged in time, a water hammer phenomenon will occur, and in severe cases, it will damage the pipe network. Therefore, reasonably setting drainage points is the guarantee for the safe operation of the pipe system. Summary of the Invention

[0004] The technical problem to be solved by the utility model is to provide a buried steam pipeline drainage structure aiming at the deficiencies of the above-mentioned existing technologies. It is mainly used to quickly discharge the condensate in the steam system, and at the same time automatically prevent the leakage of steam, ultimately achieving the purpose of ensuring the efficient and safe operation of the steam pipeline system.

[0005] The technical solution of the utility model to solve the above technical problem is as follows: A buried steam pipeline drainage structure includes a perforated plate arranged at the bottom of the buried steam pipeline. Below the perforated plate, a first seamless tee is provided for discharging the condensate flowing through the perforated plate. The first seamless tee is connected to a steam trap through a pipeline. A second seamless tee is arranged on the pipeline. A first flanged gate valve and a globe valve are respectively arranged on both sides of the second seamless tee on the pipeline, and the globe valve is located between the second seamless tee and the steam trap. The second seamless tee is also connected with a second flanged gate valve for cutting off or connecting the condensate in the pipeline.

[0006] The beneficial effect of the utility model is that: For the buried steam pipeline drainage structure of the utility model, by arranging a perforated plate and a first seamless tee at the bottom of the buried steam pipeline and cooperating with the pipeline connected to the steam trap, the condensate in the steam pipeline can be discharged in time, preventing the occurrence of the water hammer phenomenon and protecting the safe operation of the pipeline and equipment; at the same time, it can also improve the utilization efficiency of steam and reduce energy waste.

[0007] On the basis of the above technical solutions, the present utility model can also be improved as follows:

[0008] Further: The buried steam pipeline drainage structure further includes a pipe cap, which is arranged on the external thread of the lower pipe end of the first seamless tee for closing the pipeline.

[0009] The beneficial effect of the above further solution is that by setting the pipe cap for closing the pipeline, the operation is convenient, simple and efficient.

[0010] Further: The pipeline includes a first seamless steel pipe, a seamless elbow and a second seamless steel pipe. One end of the first seamless steel pipe is connected to the buried steam pipeline through the first seamless tee, and the other end of the first seamless steel pipe is connected to one end of the second seamless steel pipe through the second seamless tee. The other end of the second seamless steel pipe is connected to the steam trap. The seamless elbow and the first flanged gate valve are respectively arranged on the first seamless steel pipe, and the stop valve is arranged on the second seamless steel pipe.

[0011] The beneficial effect of the above further solution is that by setting the first seamless steel pipe, the seamless elbow and the second seamless steel pipe, the condensed water in the steam pipeline can be smoothly discharged to the steam trap, and the first seamless steel pipe, the seamless elbow and the second seamless steel pipe ensure the sealing of the pipeline and prevent corrosion.

[0012] Further: A plurality of holes are evenly arranged in a ring on the perforated plate.

[0013] The beneficial effect of the above further solution is that by evenly arranging a plurality of holes in a ring on the perforated plate, the condensed water in the buried steam pipeline can be smoothly discharged, preventing the accumulation of scale and dirt in the pipeline and ensuring the purity and dryness of the steam.

[0014] Further: The inner lining of the steam trap is made of stainless steel.

[0015] The beneficial effect of the above further solution is that by using a stainless steel inner lining, it can ensure that the steam trap will not be corroded, extend its service life and reduce the maintenance cost. Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the buried steam pipeline drainage structure according to an embodiment of the present utility model;

[0017] Figure 2 is Figure 1 the sectional view taken along A-A in

[0018] Figure 3 is a schematic structural diagram of the perforated plate according to an embodiment of the present utility model.

[0019] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0020] 1. First seamless three-way joint, 2. Pipe cap, 3. First flanged gate valve, 4. First seamless steel pipe, 5. Seamless elbow, 6. Second seamless steel pipe, 7. Globe valve, 8. Steam trap, 9. Perforated plate, 10. Second seamless three-way joint, 11. Second flanged gate valve. Specific embodiments

[0021] The principles and features of the present invention will be described below in conjunction with the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0022] As Figure 1 and Figure 2 shown, a buried steam pipeline drainage structure includes a perforated plate 9 provided at the bottom of the buried steam pipeline. Below the perforated plate 9, a first seamless three-way joint 1 is provided for discharging the condensate flowing through the perforated plate 9. The first seamless three-way joint 1 is connected to a steam trap 8 through a pipeline. A second seamless three-way joint 10 is provided on the pipeline. A first flanged gate valve 3 and a globe valve 7 are respectively provided on both sides of the second seamless three-way joint 10 on the pipeline, and the globe valve 7 is located between the second seamless three-way joint 10 and the steam trap 8. The second seamless three-way joint 10 is also connected to a second flanged gate valve 11 for cutting off or connecting the condensate in the pipeline.

[0023] For the buried steam pipeline drainage structure of the present invention, by providing a perforated plate 9 and a first seamless three-way joint 1 at the bottom of the buried steam pipeline and cooperating with the pipeline connected to the steam trap 8, the condensate in the steam pipeline can be discharged in time, preventing the occurrence of water hammer phenomenon and protecting the safe operation of the pipeline and equipment; at the same time, it can also improve the utilization efficiency of steam and reduce energy waste.

[0024] In one or more embodiments of the present invention, the buried steam pipeline drainage structure further includes a pipe cap 2. The pipe cap 2 is provided on the external thread of the lower pipe end of the first seamless three-way joint 1 for closing the pipeline. By providing the pipe cap 2 for closing the pipeline, the operation is convenient, simple and efficient.

[0025] Specifically, in one or more embodiments of the present utility model, the pipeline includes a first seamless steel pipe 4, a seamless elbow 5 and a second seamless steel pipe 6. One end of the first seamless steel pipe 4 is connected to the buried steam pipeline through the first seamless three-way 1. The other end of the first seamless steel pipe 4 is connected to one end of the second seamless steel pipe 6 through the second seamless three-way 10. The other end of the second seamless steel pipe 6 is connected to the steam trap 8. The seamless elbow 5 and the first flanged gate valve 3 are respectively arranged on the first seamless steel pipe 4. The stop valve 7 is arranged on the second seamless steel pipe 6. By providing the first seamless steel pipe 4, the seamless elbow 5 and the second seamless steel pipe 6, the condensate in the steam pipeline can be smoothly discharged to the steam trap 8, and the first seamless steel pipe 4, the seamless elbow 5 and the second seamless steel pipe 6 ensure the sealing of the pipeline and prevent rusting.

[0026] It should be noted that the operating directions of all valve handwheels can be adjusted according to the actual situation on site and installed in a convenient operation position. The drain and water discharge pipelines are arranged according to the actual situation on site. Support points are provided for the drain and water discharge pipelines at about every 3 meters. A bend is added to the drain pipeline near the ground and discharged into the nearby sewer well in the direction where people do not usually pass.

[0027] As Figure 1 shown, the first seamless three-way 1 is arranged below the perforated plate 9, so that the condensate flowing through the perforated plate can be discharged in time. A pipe cap 2 is arranged below the first seamless three-way 1. The pipe cap 2 is installed on the external thread of the lower pipe end of the first seamless three-way 1 for closing the pipeline. The first seamless steel pipe 4 is arranged behind the first seamless three-way 1. The seamless elbow 5 is arranged behind the first seamless steel pipe 4. The first flanged gate valve 3 is arranged on the first seamless steel pipe 4 behind the seamless elbow 5. The first flanged gate valve 3 comes with a flange, bolts and nuts, and an outer ring spiral wound gasket for cutting off or connecting the condensate in the pipeline. The seamless elbow 5 and the second seamless three-way 10 are arranged on the first seamless steel pipe 4 behind the first flanged gate valve 3. The second flanged gate valve 11 is arranged on the seamless steel pipe 4 below the second seamless three-way 10. The second flanged gate valve 1 also comes with a flange, bolts and nuts, and an outer ring spiral wound gasket for cutting off or connecting the condensate in the pipeline. The second seamless steel pipe 6 is arranged behind the second seamless three-way 10. The stop valve 7 is arranged behind the second seamless steel pipe 6. The stop valve comes with a flange, bolts and nuts, and an outer ring spiral wound gasket.

[0028] As Figure 3 shown, optionally, in one or more embodiments of the present utility model, a plurality of holes are evenly arranged in a ring on the perforated plate 9. By evenly arranging a plurality of holes in a ring on the perforated plate 9, the condensate in the buried steam pipeline can be smoothly discharged, preventing the accumulation of water scale and dirt in the pipeline and ensuring the purity and dryness of the steam.

[0029] In practice, the perforated plate 9 is a plate-like structure with a water-permeable function and multiple holes distributed on its surface.

[0030] Optionally, in one or more embodiments of the present invention, the inner lining of the steam trap 8 is made of stainless steel. Using a stainless steel inner lining can ensure that the steam trap 8 will not corrode, extend its service life, and reduce maintenance costs. The steam trap 8 can discharge the condensate in the steam pipeline while preventing steam leakage to the maximum extent.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A buried steam pipeline drainage structure, characterized in that: It includes a perforated plate (9) provided at the bottom of the buried steam pipeline. A first seamless three-way joint (1) for discharging the condensed water flowing through the perforated plate (9) is provided below the perforated plate (9). The first seamless three-way joint (1) is connected to a steam trap (8) through a pipeline. A second seamless three-way joint (10) is provided on the pipeline. A first flanged gate valve (3) and a stop valve (7) are respectively provided on both sides of the second seamless three-way joint (10) on the pipeline. And the stop valve (7) is located between the second seamless three-way joint (10) and the steam trap (8). The second seamless three-way joint (10) is also connected to a second flanged gate valve (11) for cutting off or connecting the condensed water in the pipeline.

2. The buried steam pipeline drainage structure according to claim 1, characterized in that: It further includes a pipe cap (2). The pipe cap (2) is arranged on the external thread of the lower pipe end of the first seamless three-way joint (1) for closing the pipeline.

3. The buried steam pipeline drainage structure according to claim 1, characterized in that: The pipeline includes a first seamless steel pipe (4), a seamless elbow (5) and a second seamless steel pipe (6). One end of the first seamless steel pipe (4) is connected to the buried steam pipeline through the first seamless three-way joint (1). The other end of the first seamless steel pipe (4) is connected to one end of the second seamless steel pipe (6) through the second seamless three-way joint (10). The other end of the second seamless steel pipe (6) is connected to the steam trap (8). The seamless elbow (5) and the first flanged gate valve (3) are respectively arranged on the first seamless steel pipe (4). The stop valve (7) is arranged on the second seamless steel pipe (6).

4. The buried steam pipeline drainage structure according to claim 1, characterized in that: A plurality of holes are evenly arranged in a ring shape on the perforated plate (9).

5. The buried steam pipeline drainage structure according to any one of claims 1-4, characterized in that: The inner lining of the steam trap (8) is made of stainless steel material.

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