Draining structure of steam pipe
By designing a hydrophobic structure in the steam pipe and using a combination of filter bags and insulation cotton, the problems of impurities and heat loss in the condensate were solved, achieving high-purity and low-heat-loss condensate treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN NANHAI YIMIAN DYEING & WEAVING CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-10
AI Technical Summary
The condensate in the steam pipe contains particulate impurities, causing the water quality indicators to exceed the standards, making it difficult to meet the requirements for industrial boiler reuse or sewage treatment, and the heat loss of the condensate is serious.
Design a hydrophobic structure for a steam pipe, including a steam flow pipe, a filter box, an insulated water tank, and a filter bag. The flow pipe is connected by a first flow pipe and a second flow pipe. The filter bag is used to filter the condensate, and the flow pipe is wrapped with insulation cotton to reduce heat loss.
It effectively reduces particulate impurities in condensate, improves water purity, reduces heat loss from condensate, and meets industrial needs.
Smart Images
Figure CN224479514U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of steam pipes, and in particular to a hydrophobic structure for steam pipes. Background Technology
[0002] In the fields of dyeing and textile, thermal power, and industrial manufacturing, steam pipelines serve as the core carriers of heat energy transfer, and their operational stability directly affects production efficiency and equipment lifespan. During the flow of steam within the pipeline, condensation continuously forms due to temperature gradient changes. If this condensation is not discharged in a timely manner, it will lead to water hammer, pipeline vibration, and a decrease in thermal efficiency.
[0003] Currently, the industry commonly uses steam traps to automatically discharge condensate. However, the inner walls of steam pipes are prone to corrosion due to long-term high temperature and pressure, and the resulting iron oxide particles (Fe2O3, Fe3O4) enter the condensate drainage system with the condensate. In addition, welding slag, scale, and solid impurities carried by the medium (such as calcium and magnesium salt crystals from incompletely softened boiler feedwater) from pipe installation also mix into the condensate. If no effective filtration device is installed during the drainage process, impurities will directly enter the condensate recovery pipeline, causing water quality indicators (such as conductivity and suspended solids concentration) to exceed standards, making it difficult to meet the requirements for industrial boiler reuse or wastewater treatment, and even causing secondary pollution. Utility Model Content
[0004] To reduce particulate impurities in condensate, this application provides a hydrophobic structure for steam pipes.
[0005] This application provides a hydrophobic structure for a steam pipeline, employing the following technical solution:
[0006] A hydrophobic structure for a steam pipe includes a steam flow pipe, a filter box disposed below the steam flow pipe, a first flow pipe connected between the filter box and the steam flow pipe, an insulated water tank disposed below the filter box, a second flow pipe connected between the insulated water tank and the filter box, a filter pocket disposed inside the filter box, and a fixing component for fixing the filter pocket in the filter box.
[0007] By adopting the above technical solution, the particulate impurities contained in the condensate in the steam flow tube mainly come from dissolved solids, pipeline corrosion products, materials falling off the boiler interior, and residues caused by improper maintenance. When the condensate flows through the first flow tube, it is collected in the filter box. At this time, the filter bag filters the condensate. The filtered condensate is then collected in the insulation water tank along the second flow tube for subsequent use. Filtering the condensate through the filter bag helps to reduce particulate impurities in the condensate and improve the purity of the condensate.
[0008] Optionally, the fixing component includes a plug rod, and sockets are provided on both sides of the inner wall of the filter box. The two sides of the filter bag are respectively inserted into the sockets on both sides. The plug rod is provided on the top surface of the socket, and the bottom end of the plug rod extends into the socket. The bottom end of the plug rod is set as a wedge-shaped surface. The bottom end of the plug rod is inserted into the filter bag. The socket is provided with an elastic element for cooperating with the movement of the plug rod.
[0009] By adopting the above technical solution, when the filter bag is inserted into the socket, the filter bag drives the insertion rod to move upward through the wedge-shaped surface. When the insertion rod is aligned with the fixing point of the filter bag, the insertion rod is inserted into the filter bag under the action of the elastic element, and the filter bag is fixed in the socket, which helps to improve the stability of the filter bag fixing.
[0010] Optionally, the elastic element is a spring, which is sleeved on the plug rod. One end of the spring is fixedly connected to the top surface of the socket, and the other end of the spring is fixedly connected to the side wall of the plug rod.
[0011] By adopting the above technical solution, when the insertion rod moves upward, the insertion rod compresses the spring. When the insertion rod is aligned with the fixing point of the filter bag, the spring releases its elastic force and drives the insertion rod to be inserted into the fixing point of the filter bag, thereby improving the stability of fixing the filter bag by the insertion rod.
[0012] Optionally, one of the sockets may have a sloping surface on its top surface, which is directly opposite the opening of the first flow pipe.
[0013] By adopting the above technical solution, when the condensate flows into the filter water tank from the first flow pipe, the condensate first flows onto the inclined water surface. Under the guiding effect of the inclined water surface, the condensate flows along the inclined water surface into the filter bag, which helps to reduce the continuous impact of the condensate on the impurities in the filter bag, causing particles to penetrate the filter bag and affecting the filtration effect.
[0014] Optionally, the sidewalls of both the first flow tube and the second flow tube are covered with insulating cotton, and the first flow tube and the second flow tube are provided with clamping components to clamp the insulating cotton.
[0015] By adopting the above technical solution, the insulation cotton is wrapped around the outer walls of the first flow tube and the second flow tube respectively by the clamping component. Under the action of the insulation cotton, it is beneficial to keep the temperature of the condensate warm and reduce the heat loss of the condensate during the transportation process.
[0016] Optionally, the clamping assembly includes a first clamping ring and a second clamping ring, the first clamping ring and the second clamping ring together clamp the insulation cotton, and the first clamping ring and the second clamping ring are fixed together by bolts.
[0017] By adopting the above technical solution, when it is necessary to clamp the insulation cotton, the first clamping ring and the second clamping ring are first set facing each other with the insulation cotton as the center, and then the first clamping ring and the second clamping ring are brought close to each other to clamp, and then fixed by bolt connection. At this time, the first clamping ring and the second clamping ring clamp the insulation cotton to the outer wall of the pipe, which helps to improve the stability of the insulation cotton covering.
[0018] Optionally, the filter box is hinged to have an inspection door.
[0019] By adopting the above technical solution, the filter box can be opened through the maintenance door to clean the impurities inside the filter bag, thereby improving the convenience of impurity cleaning.
[0020] Optionally, both the first flow tube and the second flow tube are connected to a valve.
[0021] By adopting the above technical solution, the opening and closing of the first flow tube and the second flow tube are controlled by valves, which helps to improve the stability of controlling the opening and closing of the first flow tube and the second flow tube.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. The particulate impurities in the condensate in the steam flow tube mainly come from dissolved solids, pipeline corrosion products, materials falling off the boiler interior, and residues caused by improper maintenance. When the condensate flows through the first flow tube, it is collected in the filter box. At this time, the filter bag filters the condensate. The filtered condensate is then collected in the insulation water tank along the second flow tube for subsequent use. Filtering the condensate through the filter bag helps to reduce particulate impurities in the condensate and improve the purity of the condensate.
[0024] 2. The insulation cotton is wrapped around the outer walls of the first and second flow tubes by the clamping assembly. The insulation cotton helps to keep the temperature of the condensate warm and reduces the heat loss of the condensate during transportation. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of the hydrophobic structure of the steam pipeline in this application;
[0026] Figure 2 This is a cross-sectional view of the filter box in this application;
[0027] Figure 3 yes Figure 2 An enlarged view of part A;
[0028] Figure 4 This is a cross-sectional view of the first flow tube in this application.
[0029] Explanation of reference numerals in the attached diagram: 1. Steam flow pipe; 2. Filter box; 3. First flow pipe; 4. Insulated water tank; 5. Second flow pipe; 6. Filter bag; 7. Insert rod; 8. Socket; 9. Spring; 10. Inclined water surface; 11. Inspection door; 12. Insulation cotton; 13. First clamping ring; 14. Second clamping ring; 15. Bolt; 16. Valve. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0031] See Figure 1 and Figure 2 A hydrophobic structure for a steam pipeline includes a steam pipe 1, which serves as the main pipeline for transporting steam. A filter box 2 is installed below the steam pipe 1. A first flow pipe 3 is fixedly connected between the steam pipe 1 and the filter box 2, with one end of the first flow pipe 3 fixedly connected to the bottom wall of the steam pipe 1 and the other end fixedly connected to the top wall of the filter box 2. An insulated water tank 4 is installed below the filter box 2. A second flow pipe 5 is fixedly connected between the insulated water tank 4 and the filter box 2, with one end of the second flow pipe 5 fixedly connected to the side wall of the filter box 2 and the other end fixedly connected to the top wall of the insulated water tank 4. A filter bag 6 is installed inside the filter box 2, and a fixing assembly is also installed in the filter box 2 to fix the filter bag 6 inside the filter box 2.
[0032] Steam pipes are typically used to transport steam, which may be used for heating, power generation, or heating in industrial processes. During steam transport, due to heat loss or pressure changes, some of the steam cools and condenses into condensate, which flows along the steam pipe 1.
[0033] In addition, condensate often contains particulate impurities in practice. These impurities mainly originate from dissolved solids, pipeline corrosion products, detached materials from the boiler interior, and residues caused by improper maintenance. When the condensate passes through the first flow pipe 3, it is collected in the filter box 2, where the filter pocket 6 filters it. Since the condensate retains its temperature, the filtered condensate is then collected along the second flow pipe 5 into the insulated water tank 4 for subsequent use.
[0034] For details, see Figure 2 and Figure 3 The fixing assembly includes a rod 7, and sockets 8 are fixedly installed on both sides of the inner wall of the filter box 2. The filter bag 6 is slidably inserted into the sockets 8 on both sides. The rod 7 is vertically arranged and slidably disposed on the top surface of the socket 8. The bottom end of the rod 7 extends into the socket 8 and is inserted into the filter bag 6. The bottom end of the rod 7 is also provided with a wedge-shaped surface.
[0035] In addition, to facilitate the movement of the plug rod 7, the socket 8 is equipped with an elastic element, which is a spring 9. The spring 9 is sleeved on the plug rod 7, and one end of the spring 9 is fixedly connected to the side wall of the plug rod 7, while the other end of the spring 9 is fixedly connected to the top surface of the socket 8.
[0036] When installing the filter bag 6, first align both sides of the filter bag 6 with the socket 8, and simultaneously slide the filter bag 6 into the socket 8. At this time, the filter bag 6, through its wedge-shaped surface, causes the insertion rod 7 to rise, thereby compressing the spring 9, which then deforms elastically. Until the insertion rod 7 is aligned with the fixing point of the filter bag 6, the spring 9 releases its elastic force, causing the insertion rod 7 to descend. At this point, the insertion rod 7 is inserted into the filter bag 6, and the filter bag 6 is fixed in the socket 8.
[0037] It should be noted that, see Figure 2 One of the sockets 8 has an inclined water surface 10 on its top surface, and the inclined water surface 10 is directly opposite the opening of the first flow pipe 3.
[0038] When condensate flows into the filter tank from the first flow pipe 3, it first flows onto the inclined water surface 10. Under the guiding effect of the inclined water surface 10, the condensate flows along the inclined water surface 10 into the filter pocket 6. This helps to reduce the continuous impact of condensate on impurities in the filter pocket 6, which would cause particles to penetrate the filter pocket and affect the filtration effect.
[0039] It is worth mentioning that, see Figure 1 The filter box 2 is hinged to the wall for access control. The filter box 2 can be opened through the access control 11 to clean particulate impurities from the filter bag 6.
[0040] See Figure 4 The side walls of the first flow tube 3 and the second flow tube 5 are covered with thermal insulation cotton 12, and both the first flow tube 3 and the second flow tube 5 are equipped with clamping components, which are used to clamp the thermal insulation cotton 12.
[0041] The clamping assembly includes a first clamping ring 13 and a second clamping ring 14. The first clamping ring 13 and the second clamping ring 14 are disposed opposite to each other and are connected and fixed by bolts 15.
[0042] In practice, the temperature of the condensate is lower than that of the steam, but the condensate still retains high heat. To reduce the further heat loss of the condensate during the drainage process, the insulation cotton 12 is first wrapped around the outer walls of the first flow tube 3 and the second flow tube 5. Then, the first clamping ring 13 and the second clamping ring 14 are simultaneously clamped to the insulation cotton 12. Next, the bolt 15 is tightened by thread, at which point the first clamping ring 13 and the second clamping ring 14 together clamp the insulation cotton 12. The insulation cotton 12 effectively reduces heat loss of the condensate during the drainage process.
[0043] It should be noted that, see Figure 1 To facilitate control of the flow between the first flow pipe 3 and the second flow pipe 5, valves 16 are fixedly connected to both. By opening and closing valves 16, the flow status between the first flow pipe 3 and the second flow pipe 5 is controlled, thereby improving the convenience of cleaning the filter bag 6 and maintaining the insulated water tank 4.
[0044] In practice, valve 16 can also be a solenoid valve. The solenoid valve is electrically connected to the control system through the Internet of Things. The control system opens and closes the solenoid valve, thereby realizing remote control and improving intelligent operation.
[0045] In addition, a vortex flow meter is installed inside the steam flow pipe 1. The vortex flow meter calculates the flow rate by detecting the vortex separation frequency in the steam flow. The vortex flow meter is resistant to high temperature and high pressure (typically up to 450℃ and 16MPa) and is suitable for superheated steam. The vortex flow meter is also electrically connected to the control system, which is beneficial for real-time monitoring of the steam flow rate in the steam flow pipe 1.
[0046] The working principle of a hydrophobic structure for steam pipes:
[0047] In practice, condensate often contains particulate impurities, mainly from dissolved solids, pipeline corrosion products, detached materials from the boiler interior, and residues caused by improper maintenance. When the condensate passes through the first flow pipe 3, it is collected in the filter box 2, where the filter pocket 6 filters it. Since the condensate retains its temperature, the filtered condensate is then collected along the second flow pipe 5 into the insulated water tank 4 for subsequent use.
[0048] When it is necessary to clean particulate impurities from filter bag 6, first close valve 16, then open inspection door 11, and then pull up the insert rod 7. The insert rod 7 compresses spring 9 and disengages from filter bag 6. Then slide filter bag 6 out of socket 8 to clean particulate impurities from filter bag 6. After cleaning, align both sides of filter bag 6 with socket 8 and simultaneously slide filter bag 6 into socket 8. At this time, filter bag 6 drives insert rod 7 to rise through the wedge-shaped surface, which compresses spring 9, causing spring 9 to deform elastically. When insert rod 7 is aligned with the fixed point of filter bag 6, spring 9 releases its elastic force and drives insert rod 7 to descend. At this time, insert rod 7 is inserted into filter bag 6, and filter bag 6 is fixed in socket 8.
[0049] In summary, filtering the condensate through filter bag 6 helps reduce particulate impurities in the condensate and improve its purity.
[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A hydrophobic structure for a steam pipe, comprising a steam flow pipe (1), characterized in that: A filter box (2) is provided below the steam pipe (1). A first flow pipe (3) is provided between the filter box (2) and the steam pipe (1). A heat-insulating water tank (4) is provided below the filter box (2). A second flow pipe (5) is provided between the heat-insulating water tank (4) and the filter box (2). A filter bag (6) is provided inside the filter box (2). A fixing component for fixing the filter bag (6) is provided in the filter box (2).
2. The hydrophobic structure of a steam pipe according to claim 1, characterized in that: The fixing component includes a plug rod (7), and sockets (8) are provided on both sides of the inner wall of the filter box (2). The two sides of the filter bag (6) are respectively inserted into the sockets (8) on both sides. The plug rod (7) is provided on the top surface of the socket (8), and the bottom end of the plug rod (7) extends into the socket (8). The bottom end of the plug rod (7) is set as a wedge-shaped surface. The bottom end of the plug rod (7) is inserted into the filter bag (6). The socket (8) is provided with an elastic element for cooperating with the movement of the plug rod (7).
3. The hydrophobic structure of a steam pipe according to claim 2, characterized in that: The elastic element is a spring (9), which is sleeved on the plug rod (7). One end of the spring (9) is fixedly connected to the top surface of the socket (8), and the other end of the spring (9) is fixedly connected to the side wall of the plug rod (7).
4. The hydrophobic structure of a steam pipe according to claim 2, characterized in that: One of the sockets (8) has a sloping water surface (10) on its top surface, which is directly opposite the opening of the first flow pipe (3).
5. The hydrophobic structure of a steam pipe according to claim 1, characterized in that: The sidewalls of the first flow tube (3) and the second flow tube (5) are covered with thermal insulation cotton (12), and the first flow tube (3) and the second flow tube (5) are provided with clamping components to clamp the thermal insulation cotton (12).
6. The hydrophobic structure of a steam pipe according to claim 5, characterized in that: The clamping assembly includes a first clamping ring (13) and a second clamping ring (14). The first clamping ring (13) and the second clamping ring (14) are clamped together in the insulation cotton (12). The first clamping ring (13) and the second clamping ring (14) are connected and fixed by bolts (15).
7. The hydrophobic structure of a steam pipe according to claim 1, characterized in that: The filter box (2) is hinged to the wall and has an inspection door (11).
8. The hydrophobic structure of a steam pipe according to claim 1, characterized in that: Both the first flow pipe (3) and the second flow pipe (5) are connected to valves (16).