A trap for preventing water hammer in a pipeline

By introducing low-pressure nitrogen at the outlet of the steam trap to create back pressure, and using a limiting structure to stabilize the nitrogen storage tank, the problem of pipeline shock waves caused by the velocity difference between steam and condensate is solved, thus improving the safety and stability of the system.

CN224551284UActive Publication Date: 2026-07-24NINGXIA BAOFENG ENERGY GROUP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA BAOFENG ENERGY GROUP CO LTD
Filing Date
2025-08-21
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing steam traps can cause shock waves in the pipeline due to velocity differences or pressure fluctuations between steam and condensate, resulting in pipeline vibration, noise, and even equipment damage.

Method used

A condensate trap was designed to prevent water hammer in pipelines. Low-pressure nitrogen was introduced into the outlet of the condensate trap to create back pressure. A limiting structure was used to stabilize the nitrogen storage tank and prevent velocity differences from forming when condensate moves rapidly.

Benefits of technology

This effectively avoids the rapid decrease in flow velocity of condensate as it moves quickly within the pipeline, thus preventing water hammer and improving the safety and stability of the system.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224551284U_ABST
    Figure CN224551284U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of steam trap, and disclose a steam trap of preventing water hammer of pipeline, include: the outer side fixed setting of supporting plate of two side plates of supporting plate, the top of two side plates all fixedly set up have the supporting plate, the one side of supporting plate all slidingly set up have the placing plate, the one side fixed setting of placing plate has the connecting rod, and the connecting rod slidingly installs in the inside of supporting plate, and the one end fixed setting of connecting rod has the first fixed plate, and the top of supporting plate has placed the nitrogen storage jar, and the top of supporting plate is provided with the limit structure, when using, install the nitrogen storage jar in the top of supporting plate, the fixed block of arc plate outside buckles in the inside of placing plate, fixed through bolt, thereby to the nitrogen storage jar is limited, again connecting pipe and steam trap export intercommunication, thereby to steam trap export and into a low pressure nitrogen, form back pressure, thereby avoid the condensate water in the pipeline fast movement and into the main pipe when flow rate rapidly reduce and form the speed difference and cause water hammer phenomenon.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of steam trap technology, specifically a steam trap for preventing water hammer in pipelines. Background Technology

[0002] Steam traps, also known as condensate drains or automatic drain valves, are essential devices used in steam heating equipment or steam transmission pipelines. Their main function is to automatically drain condensate from the pipeline while preventing steam leakage. In industrial pipeline systems, water hammer often occurs during steam and hot water transmission due to condensate accumulation and pressure fluctuations. Water hammer generates instantaneous high-pressure shock waves, causing pipeline vibration, loosening of joints, and even pipe rupture, seriously affecting the safe and stable operation of the system and increasing equipment maintenance costs and downtime risks.

[0003] Steam traps operate on the principle of float valves. When steam encounters cold air and condenses into water, the buoyancy of the water opens the float, discharging the condensate. When there is no water, the trap remains sealed. The main function of most steam traps used in chemical plants is to effectively separate condensate in the steam system and discharge it into the condensate main pipe, while ensuring that steam does not leak. However, due to the velocity difference or pressure fluctuation between steam and condensate, shock waves are generated in the pipeline. This phenomenon can cause pipeline vibration, noise, and may even damage the equipment.

[0004] Therefore, a drain steam trap for preventing water hammer in pipelines is proposed. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology has the problem of shock waves being generated in the pipeline due to the velocity difference or pressure fluctuation between steam and condensate, this phenomenon can cause pipeline vibration, noise, and may even damage the equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A drain sump for preventing water hammer in pipelines includes: a tray, two side plates, a support plate, a placement plate, a connecting rod, a first fixing plate, and a nitrogen storage tank; the two side plates are fixedly disposed on the outer side of the tray, the support plate is fixedly disposed on the top of the two side plates, the placement plate is slidably disposed on one side of the support plate, the connecting rod is fixedly disposed on one side of the placement plate, the first fixing plate is fixedly disposed on one end of the connecting rod, and the nitrogen storage tank is placed on the top of the tray; it also includes:

[0009] A limiting structure is provided on the top of the tray.

[0010] As a further embodiment of this utility model: the limiting structure includes: an annular limiting plate, two rotating plates, a buckle plate, a first connecting plate, a baffle plate, and a second fixing plate; the annular limiting plate is located at the top of the support plate, the two rotating plates are fixedly disposed on the outer side of the annular limiting plate, the buckle plate is fixedly disposed on the top of the two side plates, the rotating plate is buckled inside the buckle plate, the first connecting plate is fixedly disposed at one end of the buckle plate, the baffle plate is slidably disposed inside the first connecting plate, and the second fixing plate is fixedly disposed on the top of the baffle plate.

[0011] As a further improvement of this utility model: the support plate has a groove inside, and the connecting rod is slidably installed inside the groove.

[0012] As a further improvement of this utility model: two arc-shaped plates are connected to the outside of the nitrogen storage tank, and a second connecting plate is fixedly provided at both ends of the two arc-shaped plates.

[0013] As a further embodiment of this utility model: a fixing bolt is slidably passed between the two second connecting plates on the same side, a through hole is opened inside the second connecting plate, the fixing bolt slides through the through hole, a fixing block is fixedly installed on the outer side of the two arc-shaped plates, a groove is opened inside the placement plate, and the fixing block is fastened inside the groove.

[0014] As a further improvement of this utility model: the cross-section of the first connecting plate is machined into a U-shape, and the baffle slides through the first connecting plate.

[0015] As a further improvement of this utility model, one side of both the baffle and the rotating plate is machined into an arc-shaped surface.

[0016] As a further embodiment of this utility model: the cross-section of the buckle plate is machined into a right angle, the rotating plate is buckled inside the buckle plate, and the nitrogen storage tank is fixedly connected to a connecting pipe.

[0017] As a further improvement of this utility model: the connecting rod is slidably installed inside the support plate, and the annular limiting plate is sleeved on the outside of the nitrogen storage tank.

[0018] As a further improvement of this invention: the connecting pipe is connected to the outlet of the steam trap, thereby introducing a low-pressure nitrogen gas into the outlet of the steam trap to form back pressure, and the baffle limits the rotation plate. Compared with the prior art, the beneficial effects of this invention are:

[0019] This utility model includes a support plate, a placement plate, a connecting rod, a first fixing plate, and a nitrogen storage tank. In use, the support plate is placed in a suitable position, and the nitrogen storage tank is installed on top of the support plate. Two arc-shaped plates are installed on the outside of the nitrogen storage tank, with fixing blocks on the outside of the arc-shaped plates snapping into the inside of the placement plate, thus limiting the nitrogen storage tank. Rotating the annular limiting plate causes the rotating plate to snap into the inside of the retaining plate. A baffle is slidably installed at one end of the retaining plate, further limiting the nitrogen storage tank through the annular limiting plate. The connecting pipe is then connected to the outlet of the steam trap, allowing a stream of low-pressure nitrogen to enter the steam trap outlet, creating back pressure. This prevents water hammer caused by a rapid decrease in flow velocity when condensate moves quickly within the pipeline and enters the main pipe. Attached Figure Description

[0020] Figure 1 This is a side view of the structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the limiting structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure between the buckle and the baffle of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection structure between the second connecting plate and the fixing block of this utility model.

[0025] In the diagram: 1. Support plate; 2. Side plate; 3. Support plate; 4. Placement plate; 5. Connecting rod; 6. First fixing plate; 7. Nitrogen storage tank; 8. Annular limiting plate; 9. Rotating plate; 10. Buckle plate; 11. First connecting plate; 12. Baffle; 13. Second fixing plate; 14. Arc plate; 15. Second connecting plate; 16. Fixing bolt; 17. Fixing block; 18. Connecting pipe; 19. Limiting structure. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other manners different from those described herein. Those skilled in the art may make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present utility model. The phrase "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is separate or selectively mutually exclusive with other embodiments.

[0029] Embodiment 1:

[0030] Please refer to Figure 1 - Figure 5 , which is the first embodiment of the present utility model.

[0031] This embodiment provides a steam trap for preventing pipeline water hammer, including a support plate 1. Two side plates 2 are fixedly arranged on the outer side of the support plate 1. Support plates 3 are fixedly arranged on the tops of the two side plates 2. Placing plates 4 are slidably arranged on one side of each support plate 3. A connecting rod 5 is fixedly arranged on one side of the placing plate 4, and the connecting rod 5 is slidably installed inside the support plate 3. A first fixing plate 6 is fixedly arranged at one end of the connecting rod 5. A nitrogen storage tank 7 is placed on the top of the support plate 1. A limiting structure 19 is arranged on the top of the support plate 1. Two arc-shaped plates 14 are connected to the outer side of the nitrogen storage tank 7. Second connecting plates 15 are fixedly arranged at both ends of the two arc-shaped plates 14. A fixing bolt 16 slidably penetrates between the two second connecting plates 15 on the same side. Fixing blocks 17 are fixedly arranged on the outer sides of the two arc-shaped plates 14, and the fixing blocks 17 are buckled inside the placing plate 4. The nitrogen storage tank 7 is fixedly connected to a connecting pipe 18;

[0032] During use, place the support plate 1 in a suitable position, then install the nitrogen storage tank 7 on the top of the support plate 1. At the same time, two arc-shaped plates 14 are fixedly installed on the outer side of the nitrogen storage tank 7. The fixing blocks 17 on the outer sides of the arc-shaped plates 14 are buckled inside the placing plate 4 and fixed by bolts, thereby limiting the nitrogen storage tank 7. Then connect the connecting pipe 18 to the outlet of the steam trap, thereby incorporating a stream of low-pressure nitrogen into the outlet of the steam trap to form a back pressure, thereby avoiding the phenomenon of water hammer caused by the rapid reduction in the flow rate when the condensed water moves rapidly in the pipeline and merges into the main pipe, resulting in a speed difference.

[0033] The limiting structure 19 includes an annular limiting plate 8. The annular limiting plate 8 is located at the top of the support plate 1, and the annular limiting plate 8 is sleeved outside the nitrogen storage tank 7. Two rotating plates 9 are fixedly arranged on the outer side of the annular limiting plate 8. Clamping plates 10 are fixedly arranged at the tops of the two side plates 2. The rotating plates 9 are buckled inside the clamping plates 10. A first connecting plate 11 is fixedly arranged at one end of the clamping plate 10. A baffle 12 is slidably arranged inside the first connecting plate 11. A second fixing plate 13 is fixedly arranged at the top of the baffle 12;

[0034] When installing the nitrogen storage tank 7, the annular limiting plate 8 is sleeved outside the nitrogen storage tank 7. After the nitrogen storage tank 7 is installed, the annular limiting plate 8 is rotated to make the rotating plate 9 buckle inside the clamping plate 10. At the same time, a baffle 12 is slidably arranged at one end of the clamping plate 10, and the baffle 12 will limit the rotating plate 9, so as to limit the nitrogen storage tank 7 through the annular limiting plate 8.

[0035] Embodiment 2:

[0036] Please refer to Figure 1 - Figure 5 , which is the second embodiment of the present utility model.

[0037] Exemplarily, a chute is opened inside the support plate 3. The connecting rod 5 is slidably installed inside the chute. The placing plate 4 is slidably installed on one side of the support plate 3 through the connecting rod 5.

[0038] A through hole is opened inside the second connecting plate 15. The fixing bolt 16 slidably penetrates through the through hole. The arc-shaped plate 14 is fixedly installed outside the nitrogen storage tank 7 by connecting through the fixing bolt 16 and the second connecting plate 15.

[0039] A groove is opened inside the placing plate 4. The fixing block 17 is buckled inside the groove. The arc-shaped plate 14 is limited by connecting the placing plate 4 and the fixing block 17.

[0040] The cross-section of the first connecting plate 11 is processed into a U shape. The baffle 12 slidably penetrates through the first connecting plate 11. The rotating plate 9 is limited by the baffle 12.

[0041] One sides of the baffle 12 and the rotating plate 9 are both processed into arc-shaped surfaces. When the rotating plate 9 is buckled inside the clamping plate 10, the rotating plate 9 will push the baffle 12 to slide upward, so as to facilitate the limiting of the rotating plate 9.

[0042] The cross-section of the clamping plate 10 is processed into a right-angled shape. The rotating plate 9 is buckled inside the clamping plate 10. The nitrogen storage tank 7 is limited by the clamping plate 10 and the rotating plate 9.

[0043] Working principle: During use, place the pallet 1 in a suitable position, and then install the nitrogen storage tank 7 on top of the pallet 1. At the same time, two arc plates 14 are installed outside the nitrogen storage tank 7. Pass the first fixing plate 6 through the second connecting plate 15 to fix the arc plate 14. The fixing blocks 17 outside the arc plate 14 are buckled inside the placing plate 4 and fixed by bolts, thereby limiting the nitrogen storage tank 7. The placing plate 4 is slidably installed on one side of the support plate 3 through the connecting rod 5. At the same time, when installing the nitrogen storage tank 7, put the annular limiting plate 8 on the outside of the nitrogen storage tank 7. After the nitrogen storage tank 7 is installed, rotate the annular limiting plate 8 so that the rotating plate 9 is buckled inside the buckling plate 10. At the same time, a baffle 12 is slidably arranged at one end of the buckling plate 10, and the baffle 12 will limit the rotating plate 9, thereby limiting the nitrogen storage tank 7 through the annular limiting plate 8. Then connect the connecting pipe 18 to the outlet of the steam trap, thereby incorporating a low-pressure nitrogen gas into the outlet of the steam trap to form a back pressure, so as to avoid the phenomenon of water hammer caused by the rapid reduction of the flow rate when the condensed water moves rapidly in the pipeline and merges into the main pipe, resulting in a velocity difference.

[0044] It is important to note that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible on the premise of substantially not deviating from the novel teachings and advantages of the subject matter described in this application (for example, the dimensions, scales, structures, shapes and proportions of various components, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, color, orientation changes, etc.). For example, an element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature, number or position of discrete elements can be changed or altered. Therefore, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structure that performs the recited function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangements of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0045] In addition, in order to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently considered best mode of implementing the present utility model or those features that are not relevant to the implementation of the present utility model).

[0046] It should be understood that in the development of any actual implementation, in any engineering or design project, a large number of specific implementation decisions can be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be routine work of design, manufacture, and production.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A drain trap for preventing water hammer in pipelines, characterized in that: include: The system comprises a tray (1), two side plates (2), a support plate (3), a placement plate (4), a connecting rod (5), a first fixing plate (6), and a nitrogen storage tank (7); the two side plates (2) are fixedly disposed on the outer side of the tray (1), the support plate (3) is fixedly disposed on the top of the two side plates (2), the placement plate (4) is slidably disposed on one side of the support plate (3), the connecting rod (5) is fixedly disposed on one side of the placement plate (4), the first fixing plate (6) is fixedly disposed on one end of the connecting rod (5), and the nitrogen storage tank (7) is placed on top of the tray (1). It also includes: Limiting structure (19); the limiting structure (19) is disposed on the top of the tray (1).

2. A drain trap for preventing water hammer in pipelines according to claim 1, characterized in that: The limiting structure (19) includes: an annular limiting plate (8), two rotating plates (9), a buckle plate (10), a first connecting plate (11), a baffle (12), and a second fixing plate (13); the annular limiting plate (8) is located at the top of the support plate (1), the two rotating plates (9) are fixedly disposed on the outside of the annular limiting plate (8), the buckle plate (10) is fixedly disposed on the top of the two side plates (2), the rotating plates (9) are buckled inside the buckle plate (10), the first connecting plate (11) is fixedly disposed at one end of the buckle plate (10), the baffle (12) is slidably disposed inside the first connecting plate (11), and the second fixing plate (13) is fixedly disposed on the top of the baffle (12).

3. A drain steam trap for preventing water hammer in pipelines according to claim 1, characterized in that: The support plate (3) has a groove inside, and the connecting rod (5) is slidably installed inside the groove.

4. A drain steam trap for preventing water hammer in pipelines according to claim 1, characterized in that: Two arc-shaped plates (14) are connected to the outside of the nitrogen storage tank (7), and a second connecting plate (15) is fixedly installed at both ends of the two arc-shaped plates (14).

5. A drain trap for preventing water hammer in pipelines according to claim 4, characterized in that: A fixing bolt (16) slides through the two second connecting plates (15) on the same side. The second connecting plate (15) has a through hole inside, and the fixing bolt (16) slides through the through hole. Fixing blocks (17) are fixedly installed on the outer sides of the two arc plates (14). The placement plate (4) has a groove inside, and the fixing block (17) is fastened inside the groove.

6. A drain trap for preventing water hammer in pipelines according to claim 2, characterized in that: The first connecting plate (11) is machined into a U-shape, and the baffle (12) slides through the first connecting plate (11).

7. A drain steam trap for preventing water hammer in pipelines according to claim 2, characterized in that: Both the baffle (12) and the rotating plate (9) are machined into arc-shaped surfaces on one side.

8. A drain trap for preventing water hammer in pipelines according to claim 2, characterized in that: The cross-section of the buckle plate (10) is machined into a right angle, the rotating plate (9) is fastened inside the buckle plate (10), and the nitrogen storage tank (7) is fixedly connected to the connecting pipe (18).

9. A drain trap for preventing water hammer in pipelines according to claim 2, characterized in that: The connecting rod (5) is slidably installed inside the support plate (3), and the annular limiting plate (8) is sleeved on the outside of the nitrogen storage tank (7).

10. A drain trap for preventing water hammer in pipelines according to claim 8, characterized in that: The connecting pipe (18) is connected to the outlet of the steam trap, thereby introducing a low-pressure nitrogen gas into the outlet of the steam trap to form back pressure, and the baffle (12) will limit the rotation plate (9).