A steam trap for steam pipes and a system

CN224381230UActive Publication Date: 2026-06-19BINZHOU LVTONG THERMAL POWER CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BINZHOU LVTONG THERMAL POWER CO LTD
Filing Date
2025-07-09
Publication Date
2026-06-19

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Abstract

The utility model relates to steam pipeline drainage technical field especially, it is a kind of drainage steam trap device and system for steam pipeline.The steam pipeline drainage steam trap device includes: water collecting pipeline and drain pipeline;Water collecting pipeline includes first pipeline and second pipeline, and first pipeline and second pipeline form L type;The open end of first pipeline is communicated with steam pipeline away from second pipeline, and second pipeline is located below first pipeline;The end of second pipeline is set to closed end away from first pipeline, and the lateral wall of second pipeline is provided with drain, and drain pipeline is communicated with drain, and drain is set close to closed end;Drain pipeline includes third pipeline, fourth pipeline and fifth pipeline, and third pipeline and fourth pipeline form L type, and fourth pipeline and fifth pipeline form L type.The technical scheme can solve the condition that steam pipeline leads to steam to be discharged in large quantities when removing condensate, improve steam pipeline safe operation, and be conducive to achieving energy saving and consumption reduction.
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Description

Technical Field

[0001] This utility model relates to the field of steam pipeline drainage technology, and in particular to a drainage and steam-saving device and system for steam pipelines. Background Technology

[0002] Steam pipelines have a large diameter. In the operation of large-diameter pipelines, the steam pipeline is long and the flow rate is small. The steam medium flows slowly inside the pipe. Over time, condensate accumulates more and more. When it is difficult to drain the water, it will cause water accumulation in the pipeline, which will seriously affect the safe operation of the steam pipeline.

[0003] Therefore, condensate will be generated during the operation of steam pipelines. To ensure the safe operation of steam pipelines, drain valves are installed at appropriate locations during the design and installation process to allow the condensate to be directly discharged to the external environment through the drain valves. When the drain valves are open, the accumulated water in the steam pipeline can be smoothly discharged. However, during the water discharge process, a large amount of steam will leak into the external environment, increasing the wear and tear on the steam pipeline and raising costs. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a steam-saving device and system for steam pipelines, which can solve the problem of large-scale steam leakage when steam pipelines discharge condensate, thereby improving the safe operation of steam pipelines and helping to achieve energy conservation and consumption reduction.

[0005] In a first aspect, this utility model provides a steam trap for steam pipelines, comprising:

[0006] Water collection pipes and drainage pipes;

[0007] The water collection pipe includes a first pipe and a second pipe, which form an L-shape. The open end of the first pipe away from the second pipe is connected to the steam pipe, and the second pipe is located below the first pipe. The end of the second pipe away from the first pipe is set as a closed end, and a drain outlet is provided on the side wall of the second pipe. The drain pipe is connected to the drain outlet, and the drain outlet is located near the closed end.

[0008] The drainage pipe includes a third pipe, a fourth pipe, and a fifth pipe. The third pipe and the fourth pipe form an L-shape, and the fourth pipe and the fifth pipe also form an L-shape. The third pipe and the fifth pipe are arranged in parallel, and both the third pipe and the fifth pipe are arranged perpendicular to the second pipe. The fourth pipe is arranged in parallel with the second pipe. The end of the third pipe away from the fourth pipe is connected to the drain outlet, and the fifth pipe is located above the third pipe.

[0009] In some embodiments, the steam trap for steam pipelines further includes:

[0010] A buoyancy ball is disposed in the second pipe.

[0011] In some embodiments, the surface of the buoyancy ball is covered with an anti-corrosion coating.

[0012] In some embodiments, the steam trap for steam pipelines further includes:

[0013] A filter element, wherein the filter element is located in the first pipe or the second pipe.

[0014] In some embodiments, the filtering component is a filter screen.

[0015] In some embodiments, the outlet of the fifth pipe is configured as an inclined outlet.

[0016] In some embodiments, the surface of the buoyancy ball is covered with an anti-corrosion coating.

[0017] Secondly, this utility model also provides a steam-saving system for steam pipelines, comprising:

[0018] Steam pipes, pipe connection components, and steam traps for steam pipes as described in the first aspect;

[0019] The first pipe is connected to the steam pipe through the pipe connection component.

[0020] In some embodiments, the pipe connection component is a connecting flange;

[0021] The connecting flange includes a first flange and a second flange, the first flange being fitted onto the first pipe and the second flange being fitted onto the steam pipe.

[0022] The technical solution provided by this utility model embodiment has the following advantages compared with the prior art:

[0023] The steam-saving device for steam pipelines provided in this embodiment of the invention features an L-shaped first and second water collection pipe. The open end of the first pipe is connected to the steam pipeline. A drain outlet is provided on the side wall of the second pipe. The device also includes a third, fourth, and fifth drainage pipe, with the third and fourth pipes forming an L-shape, and the fourth and fifth pipes forming an L-shape. Condensate discharged from the steam pipeline is buffered in the second pipe to form a water seal barrier, allowing the condensate to drain and preventing excessive steam leakage. This ensures that water is drained from the steam pipeline while preventing excessive steam leakage, thus achieving energy saving and consumption reduction. Therefore, the steam-saving device for steam pipelines provided in this embodiment of the invention can solve the problem of excessive steam leakage when condensate is discharged from the steam pipeline, thereby improving the safe operation of the steam pipeline and contributing to energy saving and consumption reduction. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of a steam-saving device for steam pipelines provided in an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of a steam condensate-saving system for steam pipelines, provided as an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 10. Water collection pipe; 11. Drainage pipe; 101. First pipe; 102. Second pipe; 103. Third pipe; 104. Fourth pipe; 105. Fifth pipe; 13. Steam pipe; 14. Buoyancy ball; 15. Filter component; 16. Pipe connection component; 160. Connecting flange; 1601. First flange; 1602. Second flange; 17. Open end; 18. Drain outlet; 19. Closed end; 20. Water outlet. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0031] The steam-saving device for steam pipelines provided in this embodiment of the invention features an L-shaped first and second water collection pipe. The open end of the first pipe is connected to the steam pipeline. A drain outlet is provided on the side wall of the second pipe. The device also includes a third, fourth, and fifth drainage pipe, with the third and fourth pipes forming an L-shape, and the fourth and fifth pipes forming an L-shape. Condensate discharged from the steam pipeline is buffered in the second pipe to form a water seal barrier, allowing the condensate to drain and preventing excessive steam leakage. This ensures that water is drained from the steam pipeline while preventing excessive steam leakage, thus achieving energy saving and consumption reduction. Therefore, the steam-saving device for steam pipelines provided in this embodiment of the invention can solve the problem of excessive steam leakage when condensate is discharged from the steam pipeline, thereby improving the safe operation of the steam pipeline and contributing to energy saving and consumption reduction.

[0032] The following description, in conjunction with the accompanying drawings, provides an exemplary description of the steam-saving device and steam-saving system for steam pipelines provided in the embodiments of the present invention.

[0033] Figure 1 This is a schematic diagram of a steam trap for steam pipelines, provided as an embodiment of the present invention. Figure 1 As shown, the steam-saving device for steam pipelines includes: a water collection pipe 10 and a drain pipe 11; the water collection pipe 10 includes a first pipe 101 and a second pipe 102, which form an L-shape; the open end 17 of the first pipe 101 away from the second pipe 102 is connected to the steam pipeline 13, and the second pipe 102 is located below the first pipe 101; the end of the second pipe 102 away from the first pipe 101 is set as a closed end 19, and a drain outlet 18 is provided on the side wall of the second pipe 102; the drain pipe 11 is connected to the drain outlet 18, and the drain outlet 18 is located near the closed end 19;

[0034] The drainage pipe 11 includes a third pipe 103, a fourth pipe 104, and a fifth pipe 105. The third pipe 103 and the fourth pipe 104 form an L-shape, and the fourth pipe 104 and the fifth pipe 105 also form an L-shape. The third pipe 103 and the fifth pipe 105 are arranged in parallel, and both the third pipe 103 and the fifth pipe 105 are arranged perpendicular to the second pipe 102. The fourth pipe 104 is arranged in parallel with the second pipe 102. The end of the third pipe 103 away from the fourth pipe 104 is connected to the drain outlet 18, and the fifth pipe 105 is located above the third pipe 103.

[0035] Specifically, this utility model uses dismantled DN100 seamless steel pipes to weld and fabricate water collection pipe 10 and drainage pipe 11. The size of water collection pipe 10 is determined according to the drain outlet of steam pipe 13, and then welding and fixing are performed to complete the process.

[0036] The water collection pipe 10 includes a first pipe 101 and a second pipe 102, which form an L-shape. The open end 17 of the first pipe 101 connects to the steam pipe 13 (as described below). Figure 2 (As shown) The connection allows condensate in steam pipe 13 to flow into second pipe 102 through first pipe 101, where it settles. Drain pipe 11 includes third pipe 103, fourth pipe 104, and fifth pipe 105, with third pipe 103 and fourth pipe 104 forming an L-shape, and fourth pipe 104 and fifth pipe 105 forming an L-shape. When the condensate settled in second pipe 102 reaches the water level at drain outlet 18, it is set to... Figure 1 The drainage pipe 11 shown cannot allow the condensate that has settled in the second pipe 102 to be discharged immediately through the drain outlet 18. The condensate in the second pipe 102 can form a water seal barrier, and the steam in the water collection pipe 10 cannot easily penetrate the water seal barrier, thereby effectively preventing excessive steam leakage.

[0037] Specifically, since condensate is denser than steam, the condensate in steam pipe 13 flows into the second pipe 102 along the first pipe 101 under the influence of gravity. As condensate continuously accumulates in the second pipe 102, it forms a water seal barrier, preventing steam from easily penetrating and effectively preventing excessive steam leakage. Furthermore, when steam pipe 13 outputs steam to the first pipe 101, the pressure in the water collection pipe 10 increases. As the pressure continues to increase, the condensate can be discharged through the drain pipe 11.

[0038] The steam-saving device for steam pipelines provided in this embodiment of the invention features an L-shaped first pipe 101 and a second pipe 102 for collecting water. The open end 17 of the first pipe 101 is connected to the steam pipeline 13. A drain outlet 18 is provided on the side wall of the second pipe 102. A drainage pipe 11 is also provided, including a third pipe 103, a fourth pipe 104, and a fifth pipe 105. The third pipe 103 and the fourth pipe 104 form an L-shape, as do the fourth pipe 104 and the fifth pipe 105. Condensate is buffered in the second pipe 102 to form a water seal barrier, allowing condensate to drain and preventing excessive steam leakage. This ensures that water accumulated in the steam pipeline 13 is drained while preventing excessive steam leakage, thus achieving energy saving and consumption reduction. Furthermore, the steam-saving device for steam pipelines provided in this embodiment of the invention has low installation cost, is easy to install, and has a long service life.

[0039] Therefore, the steam-saving device for steam pipelines provided in this embodiment of the present invention can solve the problem of large-scale steam leakage when steam pipelines discharge condensate, thereby improving the safe operation of steam pipelines and helping to achieve energy saving and consumption reduction.

[0040] In some embodiments, such as Figure 1 As shown, the steam condensate trap for steam pipelines also includes a buoyancy ball 14, which is disposed in the second pipeline 102.

[0041] Specifically, a buoyancy ball 14 is made by modifying a stainless steel hollow sphere. When condensate accumulates in the second pipe 102, the buoyancy ball 14 floats on the condensate. When steam is output from the steam pipe 13 to the first pipe 101, the pressure in the water collection pipe 10 increases. As the pressure continues to increase, the buoyancy ball 14 is compressed by the pressure in the second pipe 102, which helps to drain the condensate accumulated in the second pipe 102 through the drain outlet 18. Therefore, this embodiment of the invention, by setting up the buoyancy ball 14, facilitates the drainage of condensate accumulated in the second pipe 102 through the drain outlet 18.

[0042] In some embodiments, such as Figure 1 As shown, the surface of the buoyancy ball 14 is covered with an anti-corrosion coating (not shown in the figure).

[0043] Specifically, since the buoyancy ball 14 is in a humid environment, by applying an anti-corrosion coating to the surface of the buoyancy ball 14, the degree of corrosion of the buoyancy ball 14 is reduced, which helps to extend the service life of the buoyancy ball 14.

[0044] In some embodiments, such as Figure 1 As shown, the steam trap for steam pipelines also includes:

[0045] The filter element 15 is located in the first pipe 101 or the second pipe 102.

[0046] Specifically, by setting up the filter component 15, impurities flowing into the water collection pipe 10 can be filtered to prevent impurities from settling at the drain outlet 18 set on the side wall of the second pipe 102 and thus clogging the drain outlet 18.

[0047] Preferably, in this embodiment of the invention, the filter element 15 can be positioned near the connection point between the first pipe 101 and the second pipe 102.

[0048] In some embodiments, such as Figure 1 As shown, the filter element 15 can be a filter screen. Thus, by setting a filter screen, impurities in the water inlet pipe 10 can be filtered to prevent impurities from clogging the drain outlet 18.

[0049] In some embodiments, such as Figure 1 As shown, the outlet 20 of the fifth pipe 105 is set as an inclined outlet.

[0050] Specifically, by setting the outlet 20 of the fifth pipe 105 to be an inclined outlet, the inclined outlet allows the water to be discharged faster by gravity.

[0051] Based on the above embodiments, this utility model also provides a steam-saving system for steam pipelines. Figure 2 This invention provides a structural schematic diagram of a steam-saving system for steam pipelines. (See attached diagram.) Figure 1 and Figure 2 As shown, the steam condensate steam-saving system for steam pipelines includes: steam pipeline 13, pipeline connection component 16, and steam condensate steam-saving device for steam pipelines as described in the above embodiments. Therefore, it has the same or similar beneficial effects, which will not be elaborated here.

[0052] Specifically, such as Figure 2 As shown, the first pipe 101 is connected to the steam pipe 13 through the pipe connection component 16, thereby realizing the installation design of the steam pipe condensate draining device and the steam pipe 13, and draining the condensate in the steam pipe 13.

[0053] In some embodiments, such as Figure 2 As shown, the pipe connection component 16 is a connecting flange 160; the connecting flange 160 includes a first flange 1601 and a second flange 1602, the first flange 1601 is fitted on the first pipe 101, and the second flange 1602 is fitted on the steam pipe 13.

[0054] The connecting flange 160 also includes multiple bolts and nuts. The first flange 1601 and the second flange 1602 are fastened together by bolts and nuts to achieve a sealed connection between the pipes.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A steam trap for steam pipelines, characterized in that, include: Water collection pipes and drainage pipes; The water collection pipe includes a first pipe and a second pipe, which form an L-shape. The open end of the first pipe away from the second pipe is connected to the steam pipe, and the second pipe is located below the first pipe. The end of the second pipe away from the first pipe is set as a closed end, and a drain outlet is provided on the side wall of the second pipe. The drain pipe is connected to the drain outlet, and the drain outlet is located near the closed end. The drainage pipe includes a third pipe, a fourth pipe, and a fifth pipe. The third pipe and the fourth pipe form an L-shape, and the fourth pipe and the fifth pipe also form an L-shape. The third pipe and the fifth pipe are arranged in parallel, and both the third pipe and the fifth pipe are arranged perpendicular to the second pipe. The fourth pipe is arranged in parallel with the second pipe. The end of the third pipe away from the fourth pipe is connected to the drain outlet, and the fifth pipe is located above the third pipe.

2. The steam-saving device for steam pipelines according to claim 1, characterized in that, Also includes: A buoyancy ball is disposed in the second pipe.

3. The steam-saving device for steam pipelines according to claim 2, characterized in that, The surface of the buoyancy ball is covered with an anti-corrosion coating.

4. The steam-saving device for steam pipelines according to claim 1, characterized in that, Also includes: A filter element, wherein the filter element is located in the first pipe or the second pipe.

5. The steam-saving device for steam pipelines according to claim 4, characterized in that, The filtering component is a filter screen.

6. The steam-saving device for steam pipelines according to claim 1, characterized in that, The outlet of the fifth pipe is set as an inclined outlet.

7. A steam-saving system for steam pipelines, characterized in that, include: Steam pipes, pipe connection components, and steam traps for steam pipes as described in any one of claims 1-6; The first pipe is connected to the steam pipe through the pipe connection component.

8. The steam-saving system for steam pipelines according to claim 7, characterized in that, The pipe connection component is a connecting flange; The connecting flange includes a first flange and a second flange, the first flange being fitted onto the first pipe and the second flange being fitted onto the steam pipe.