Steam recycling system connecting new and old accumulators

Abstract

The application relates to a steam recycling system connecting two sets of heat accumulators, and relates to the technical field of steam energy recycling and utilization, which comprises two split cylinder main bodies. The two split cylinder main bodies are connected through a standby pipe and a communication pipe, and the flexible switching of independent operation and cooperative operation of the two sets of systems is realized by cooperating with electromagnetic valves. When one set of system fails or is maintained, the other set can supplement steam in time to ensure the continuity of production. Then, the corrugated pipe compensator relieves the deformation stress of the communication pipe caused by temperature change, ensures the stability of the communication structure, and then the pressure sensor and the temperature sensor are electrically connected with an external controller and electromagnetic valves to realize real-time monitoring and intelligent control of the steam state. Steam can be flexibly distributed or supplemented according to the load, and the spiral guide plates in the two split cylinder main bodies cooperate with the return pipes to reduce steam turbulent loss and improve conveying efficiency. Under the overall synergistic effect, the production efficiency and the system reliability coefficient are improved.

Description

Technical Field

[0001] This application relates to the field of steam energy recovery and utilization technology, and in particular to a steam recovery and utilization system that connects two sets of old and new accumulators. Background Technology

[0002] In steelmaking plants and power centers of steel production enterprises, steam, as a crucial energy medium, directly impacts the enterprise's energy consumption and economic benefits through its recovery and utilization efficiency. The thermal accumulator system, as the core equipment for steam recovery and utilization, distributes and transports steam through a steam distributor, serving as a key device for balancing steam supply and demand and reducing energy waste. In existing technologies, steam distributors typically have fixed interface specifications and are equipped with steam inlets, safety valve outlets, multiple steam outlets, and detection interfaces to meet the needs of pressure regulation, diversion, and monitoring during steam transport. With the expansion of steel production scale and technological upgrades, enterprises often add one or more systems to their existing thermal accumulator systems, creating a coexistence of old and new systems to cope with higher demands for steam recovery and supply.

[0003] However, the existing steam distribution cylinders of the two accumulator systems, both new and old, operate independently without an effective connection structure. When one system shuts down due to a malfunction or is under maintenance, the other system cannot replenish the steam supply in time, which can easily cause steam interruptions, affecting the continuity of key processes such as steelmaking and reducing production efficiency. Secondly, the two systems cannot operate flexibly and collaboratively according to fluctuations in steam supply and demand. When the load of a single system is too high, excess steam is difficult to divert through the other system, and when the load is insufficient, it is impossible to supplement with the reserve steam of the other system. This results in low system reliability and significant energy waste. Furthermore, in independent operation mode, the pressure, flow rate, and other parameters of the two systems cannot be linked for control, further limiting the optimal allocation of steam resources. Utility Model Content

[0004] The purpose of this application is to provide a steam recovery and utilization system that connects two sets of heat accumulators, one old and one new. The two main bodies of the steam distribution cylinders are connected through a spare pipe and a connecting pipe. With the help of solenoid valves, the two systems can be flexibly switched between independent operation and coordinated operation. At the same time, pressure sensors and temperature sensors are electrically connected to external controllers and solenoid valves to realize real-time monitoring and intelligent control of steam status. Steam can be flexibly diverted or supplemented according to the load, thus solving the problems mentioned in the background art.

[0005] The steam recovery and utilization system connecting the old and new accumulators provided in this application adopts the following technical solution: The steam recovery and utilization system connecting the old and new accumulators includes two steam distribution cylinder bodies. A spare pipe is fixedly installed on the inner side of each of the two steam distribution cylinder bodies. A connecting pipe is fixedly connected to the outer side of each of the two spare pipes. A solenoid valve is fixedly installed on the outer side of the connecting pipe. A bellows compensator is provided on the inner side of the connecting pipe. A pressure sensor is fixedly installed on the outer side of each of the two steam distribution cylinder bodies. Both the pressure sensor and the temperature sensor are electrically connected to an external controller. The solenoid valve is electrically connected to the external controller. A temperature sensor is fixedly installed on the outer side of each of the two steam distribution cylinder bodies. Multiple circumferentially arrayed spiral guide plates are fixedly connected to the inner side of each of the two steam distribution cylinder bodies. A return pipe is provided inside each of the two steam distribution cylinder bodies, and the outer side of the return pipe is fixedly connected to the outer side of the spiral guide plates.

[0006] By adopting the above technical solution, the two steam distribution cylinder bodies can be connected through a spare pipe and a connecting pipe. The solenoid valve can control the opening and closing of the connecting pipe, allowing the two systems to flexibly switch between independent or coordinated operation modes. Then, the bellows compensator can alleviate the deformation stress of the connecting pipe caused by temperature changes, ensuring the stability of the connection structure. Subsequently, pressure and temperature sensors can be used to monitor the steam state in the steam distribution cylinder body in real time and transmit the signal to an external controller. The external controller then controls the action of the solenoid valve according to the signal to realize intelligent regulation of the system. Finally, the spiral guide plate can guide the steam to flow in an orderly manner in the steam distribution cylinder body. The return pipe and the spiral guide plate work together to reduce steam turbulence loss and improve steam delivery efficiency.

[0007] Preferably, the spare pipe and the connecting pipe are fixedly connected by a flange.

[0008] By adopting the above technical solution, the flange connection can ensure the sealing and stability of the connection between the backup pipe and the connecting pipe, prevent steam leakage at the connection, and facilitate the disassembly, maintenance or replacement of the backup pipe and the connecting pipe in the later stage, ensuring the reliable operation of the connection channel between the two systems.

[0009] Preferably, both ends of the bellows compensator are fixedly connected to the connecting pipe via flanges.

[0010] By adopting the above technical solution, the flange connection firmly connects the bellows compensator and the connecting pipe, ensuring the airtightness of steam flow without affecting the compensation effect of the bellows compensator on the deformation of the connecting pipe, extending the service life of the connecting pipe, and ensuring the continuity of the connection between the two systems.

[0011] Preferably, the bases of the two main steam cylinder bodies are fixedly connected to a support base.

[0012] By adopting the above technical solution, the support base provides stable support for the main body of the steam distributor cylinder, reduces the displacement or shaking of the main body of the steam distributor cylinder caused by vibration and other factors during operation, ensures the stability of the main body of the steam distributor cylinder and the connection of each component, and ensures the normal operation of the system.

[0013] Preferably, a DN300 safety valve outlet pipe is fixedly connected to the inner side of each of the two steam cylinder bodies, and the DN300 safety valve outlet pipe is fixedly connected to an external pipeline through a flange.

[0014] By adopting the above technical solution, the outlet pipe of the DN300 safety valve can play a pressure relief role when the pressure inside the steam distributor cylinder is abnormal, ensuring the safe operation of the steam distributor cylinder. Furthermore, the flange connection facilitates the installation and maintenance of the DN300 safety valve outlet pipe and external pipelines, ensuring the unobstructed pressure relief channel.

[0015] Preferably, a DN400 steam inlet pipe is fixedly connected to the inner side of each of the two steam cylinder bodies, and the DN400 steam inlet pipe is fixedly connected to an external pipeline through a flange.

[0016] By adopting the above technical solution, the DN400 steam inlet pipe is used to introduce external steam into the main body of the steam distribution cylinder to provide a steam source for the system. At the same time, the flange connection ensures the sealing and firmness of the connection between the DN400 steam inlet pipe and the external pipeline, ensuring stable steam input into the main body of the steam distribution cylinder.

[0017] Preferably, two DN300 steam outlet pipes are fixedly connected to the inner side of each of the two steam cylinder bodies, and both DN300 steam outlet pipes are fixedly connected to external pipelines through flanges.

[0018] By adopting the above technical solution, the two DN300 steam outlet pipes can divert the steam in the main body of the steam distribution cylinder to different steam-using equipment, meeting diverse steam demand. At the same time, the flange connection facilitates the connection and adjustment of external pipelines according to the actual steam demand, improving the system's adaptability.

[0019] Preferably, two DN350 steam outlet pipes are fixedly connected to the inner side of each of the two steam cylinder bodies, and both DN350 steam outlet pipes are fixedly connected to external pipelines through flanges.

[0020] By adopting the above technical solution, the two DN350 steam outlet pipes and the two DN300 steam outlet pipes can be matched to achieve steam distribution with different flow rates, further meeting the steam demand of different steam-using equipment. At the same time, the flange connection ensures the reliability of the connection between the DN350 steam outlet pipe and the external pipeline, ensuring stable steam output.

[0021] In summary, this application includes at least one of the following beneficial technical effects: This steam recovery and utilization system, which connects the old and new accumulators, connects the two main steam distribution cylinders via a backup pipe and a connecting pipe. Combined with solenoid valves, it allows for flexible switching between independent and coordinated operation of the two systems, solving the problem of the original independent systems being unable to provide backup for each other. When one system fails or requires maintenance, the other can promptly replenish steam, ensuring continuous production. A bellows compensator alleviates the deformation stress caused by temperature changes in the connecting pipe, ensuring structural stability. Pressure and temperature sensors are electrically connected to an external controller and solenoid valves, enabling real-time monitoring and intelligent control of the steam status. Steam can be flexibly diverted or replenished according to the load, reducing energy waste. Furthermore, the spiral guide plates within the two main steam distribution cylinders work in conjunction with the return pipe to reduce steam turbulence losses and improve conveying efficiency. Overall, the synergistic effect improves production efficiency and system reliability. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the entire application; Figure 2 This is a cross-sectional structural diagram of the entire application; Figure 3 This is a schematic diagram of the internal structure of the main body of the steam cylinder in this application; Figure 4 This is a three-dimensional structural diagram of the reflux pipe and spiral guide plate of this application; Figure 5 This is a three-dimensional structural diagram of the connecting pipe, solenoid valve, and bellows compensator of this application.

[0023] In the picture: 1. Steam cylinder body; 2. Spare pipe; 3. Connecting pipe; 4. Solenoid valve; 5. Bellows compensator; 6. Pressure sensor; 7. Temperature sensor; 8. Support base; 9. DN300 safety valve outlet pipe; 10. DN400 steam inlet pipe; 11. DN300 steam outlet pipe; 12. DN350 steam outlet pipe; 13. Return pipe; 14. Spiral guide plate. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0025] Example 1: A steam recovery and utilization system connecting two sets of heat accumulators (old and new). Please refer to... Figure 1 , Figure 2 and Figure 5The system includes two steam distribution cylinder bodies 1. A spare pipe 2 is fixedly installed on the inner side of each steam distribution cylinder body 1, and a connecting pipe 3 is fixedly connected to the outer side of each spare pipe 2. The two steam distribution cylinder bodies 1 are connected via the spare pipe 2 and the connecting pipe 3. This allows the other system to replenish steam promptly when one system fails or requires maintenance, ensuring continuous production. The spare pipe 2 and the connecting pipe 3 are fixedly connected by flanges. These flanges ensure the sealing and stability of the connection between the spare pipe 2 and the connecting pipe 3, preventing steam leakage at the connection point. They also facilitate subsequent disassembly, maintenance, or replacement of the spare pipe 2 and the connecting pipe 3, ensuring reliable operation of the connection channel between the two systems. The outer side of the connecting pipe 3... A solenoid valve 4 is fixedly installed, which enables flexible switching between independent and coordinated operation of the two systems, solving the problem that the original independent systems could not be used as backups for each other. A bellows compensator 5 is installed on the inner side of the connecting pipe 3. The bellows compensator 5 relieves the deformation stress of the connecting pipe 3 caused by temperature changes, ensuring the stability of the connection structure. The two ends of the bellows compensator 5 are fixedly connected to the connecting pipe 3 through flanges. The flange connection makes the bellows compensator 5 and the connecting pipe 3 firmly connected, which not only ensures the sealing of steam flow, but also does not affect the compensation effect of the bellows compensator 5 on the deformation of the connecting pipe 3, extending the service life of the connecting pipe 3 and ensuring the continuity of the connection between the two systems.

[0026] Please refer to Figure 1 , Figure 3 and Figure 4 Pressure sensors 6 are fixedly installed on the outer sides of both steam distribution cylinder bodies 1. Pressure sensors 6 and temperature sensors 7 are electrically connected to an external controller. Solenoid valve 4 is also electrically connected to the external controller. The aforementioned pressure sensors 6 and temperature sensors 7 are electrically connected to the external controller and solenoid valve 4 to realize real-time monitoring and intelligent control of steam status. Steam can be flexibly diverted or supplemented according to the load, reducing energy waste. Temperature sensors 7 are fixedly installed on the outer sides of both steam distribution cylinder bodies 1. Multiple spiral guide plates 14 in a circular array are fixedly connected to the inner sides of both steam distribution cylinder bodies 1. Return pipes 13 are provided inside both steam distribution cylinder bodies 1, and the outer side of the return pipes 13 is fixedly connected to the outer side of the spiral guide plates 14. The cooperation of the return pipes 13 and spiral guide plates 14 allows steam to flow from the return pipes 13 to the other side of the steam distribution cylinder body 1 after spiraling to one side, thus achieving circulation. The cooperation of the two further improves the steam delivery efficiency.

[0027] Example 2: A steam recovery and utilization system connecting two sets of heat accumulators (old and new). Please refer to... Figure 1 , Figure 2 and Figure 3The bases of the two steam distributor cylinder bodies 1 are fixedly connected to support bases 8. Support bases 8 provide stable support for the steam distributor cylinder bodies 1, reducing displacement or shaking caused by vibration and other factors during operation, ensuring the stability of the steam distributor cylinder bodies 1 and the connections of all components, and ensuring normal system operation. DN300 safety valve outlet pipes 9 are fixedly connected to the inner sides of both steam distributor cylinder bodies 1. The DN300 safety valve outlet pipes 9 are fixedly connected to external pipelines via flanges. The DN300 safety valve outlet pipes 9 can relieve pressure when there is abnormal pressure inside the steam distributor cylinder bodies 1, ensuring the safety of the steam distributor cylinders. The main body 1 is safe to operate, and the flange connection facilitates the installation and maintenance of the DN300 safety valve outlet pipe 9 and the external pipeline, ensuring the unobstructed pressure relief channel. The inner sides of the two steam distribution cylinder main bodies 1 are fixedly connected with DN400 steam inlet pipes 10. The DN400 steam inlet pipes 10 are fixedly connected to the external pipeline through flanges. The DN400 steam inlet pipes 10 are used to introduce external steam into the steam distribution cylinder main body 1 to provide a steam source for the system. At the same time, the flange connection ensures the sealing and firmness of the connection between the DN400 steam inlet pipes 10 and the external pipeline, ensuring stable steam input into the steam distribution cylinder main body 1.

[0028] Please refer to Figure 1 and Figure 3 Two DN300 steam outlet pipes 11 are fixedly connected to the inner side of each of the two steam distribution cylinder bodies 1. Both DN300 steam outlet pipes 11 are fixedly connected to external pipelines through flanges. The two DN300 steam outlet pipes 11 can distribute the steam in the steam distribution cylinder body 1 to different steam-using equipment to meet diverse steam demand. At the same time, the flange connection facilitates the connection and adjustment of external pipelines according to actual steam demand, improving the system's adaptability. Two DN350 steam outlet pipes 12 are fixedly connected to the inner side of each of the two steam distribution cylinder bodies 1. Both DN350 steam outlet pipes 12 are fixedly connected to external pipelines through flanges. The two DN350 steam outlet pipes 12, together with the two DN300 steam outlet pipes 11, can realize the distribution of steam with different flow rates, further meeting the steam demand of different steam-using equipment. At the same time, the flange connection ensures the reliability of the connection between the DN350 steam outlet pipes 12 and the external pipelines, ensuring stable steam output.

[0029] The implementation principle of this application embodiment is as follows: The two steam distribution cylinder bodies 1 correspond to the old and new heat storage systems respectively. During normal operation, independent operation mode can be achieved by closing the solenoid valve 4. At this time, external steam enters the steam distribution cylinder body 1 through the DN400 steam inlet pipe 10 and forms an orderly flow under the guidance of the spiral guide plate 14, reducing turbulence loss. The spiral flow of steam can accelerate mixing. When the steam spiral flows to one side of the steam distribution cylinder body 1, the steam flows from the return pipe 13 to the other side of the steam distribution cylinder body 1, thereby realizing circulation. With the cooperation of both, the steam delivery efficiency is further improved. The steam is then distributed to various steam-using equipment through the DN300 steam outlet pipe 11 and the DN350 steam outlet pipe 12. During coordinated operation, pressure sensor 6 and temperature sensor 7 monitor the steam state inside the main body 1 of the steam distribution cylinder in real time and transmit the signal to the external controller. The controller controls the solenoid valve 4 to open based on the monitoring data, so that the two main bodies 1 of the steam distribution cylinder are connected to the connecting pipe 3 through the spare pipe 2. At this time, one system can supplement steam to the other system or divert excess steam. During the connection process, the bellows compensator 5 relieves the deformation stress of the connecting pipe 3 caused by temperature changes, ensuring the stability of the connection structure. Then, the outlet pipe 9 of the DN300 safety valve plays a role in relieving pressure when the pressure is abnormal. All components are connected by flanges to ensure the sealing and stability of the connection, thereby realizing the flexible switching of the two systems' operating modes, improving the steam recovery and utilization efficiency and system reliability.

Claims

1. A steam recycling system for connecting a new set of regenerators with an old set of regenerators, comprising two cylinder bodies (1), characterized in that: A spare pipe (2) is fixedly installed on the inner side of each of the two steam cylinder bodies (1). A connecting pipe (3) is fixedly connected to the outer side of each of the two spare pipes (2). A solenoid valve (4) is fixedly installed on the outer side of the connecting pipe (3). A bellows compensator (5) is provided on the inner side of the connecting pipe (3). A pressure sensor (6) is fixedly installed on the outer side of each of the two steam cylinder bodies (1). A temperature sensor (7) is fixedly installed on the outer side of each of the two steam cylinder bodies (1). The pressure sensor (6) and the temperature sensor (7) are electrically connected to an external controller. The solenoid valve (4) is electrically connected to an external controller. A plurality of spiral guide plates (14) in a circular array are fixedly connected to the inner side of each of the two steam cylinder bodies (1). A return pipe (13) is provided inside each of the two steam cylinder bodies (1), and the outer side of the return pipe (13) is fixedly connected to the outer side of the spiral guide plate (14).

2. The steam recovery and utilization system connecting the old and new heat accumulators according to claim 1, characterized in that: The spare pipe (2) and the connecting pipe (3) are fixedly connected by a flange.

3. The steam recovery and utilization system connecting the old and new heat accumulators according to claim 1, characterized in that: The two ends of the bellows compensator (5) are fixedly connected to the connecting pipe (3) via flanges.

4. The steam recovery and utilization system connecting the old and new heat accumulators according to claim 1, characterized in that: The bases of the two steam cylinder bodies (1) are fixedly connected to the support bases (8).

5. The steam recovery and utilization system connecting two sets of heat accumulators as described in claim 1, characterized in that: The inner sides of the two steam cylinder bodies (1) are fixedly connected with DN300 safety valve outlet pipes (9), and the DN300 safety valve outlet pipes (9) are fixedly connected to external pipelines through flanges.

6. The steam recovery and utilization system connecting two sets of heat accumulators as described in claim 1, characterized in that: Both of the two steam cylinder bodies (1) are fixedly connected to the inner side of a DN400 steam inlet pipe (10), and the DN400 steam inlet pipe (10) is fixedly connected to an external pipeline through a flange.

7. The steam recovery and utilization system connecting two sets of heat accumulators as described in claim 1, characterized in that: Two DN300 steam outlet pipes (11) are fixedly connected to the inner side of each of the two steam cylinder bodies (1), and both DN300 steam outlet pipes (11) are fixedly connected to external pipelines through flanges.

8. The steam recovery and utilization system connecting two sets of heat accumulators as described in claim 1, characterized in that: Two DN350 steam outlet pipes (12) are fixedly connected to the inner side of each of the two steam cylinder bodies (1), and both DN350 steam outlet pipes (12) are fixedly connected to external pipelines through flanges.

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