Low-temperature economizer anti-leakage intelligent early warning device
By combining a flue gas monitor and a sulfide monitor in the cryogenic economizer, the problem of existing devices being unable to monitor leaks at the connection points has been solved, enabling early leak detection and safety warnings, and improving the safety and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中煤哈密发电有限公司
- Filing Date
- 2025-04-17
- Publication Date
- 2026-07-21
AI Technical Summary
Existing low-temperature economizer leak prevention and early warning devices fail to effectively monitor the risk of leakage at the connection points.
A low-temperature economizer leak prevention intelligent early warning device was designed. It uses a flue gas monitor and a sulfide monitor combined with a space consisting of a sealed shell, an outlet shell, and a guide shell to monitor the leak risk of the economizer in real time, and provides early warning and control through the monitoring body and touch screen.
It enables early leakage detection at economizer connections, improves equipment safety, reduces maintenance costs, extends equipment lifespan, and provides reliable safety assurance.
Smart Images
Figure CN224535922U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of leakage prevention technology, specifically a low-temperature economizer leakage prevention intelligent early warning device. Background Technology
[0002] The cryogenic economizer leak prevention intelligent early warning device is a safety monitoring equipment specifically designed for cryogenic economizers. It aims to monitor the economizer's operating status in real time and promptly detect potential leak risks. This device continuously monitors key parameters within the economizer, such as temperature, pressure, and gas concentration, using high-precision sensors and intelligent algorithms. Once abnormal changes or leak risks are detected, the system automatically triggers an early warning, alerting operators and providing the specific leak location and severity. This intelligent early warning device not only improves equipment safety but also effectively prevents accidents caused by leaks, reduces maintenance costs, and extends equipment lifespan. Through automated and intelligent monitoring, the cryogenic economizer leak prevention intelligent early warning device provides more reliable safety assurance for industrial production.
[0003] For example, application CN207334713U discloses a low-temperature economizer anti-wear and anti-leakage early warning device and forecasting system. The early warning device includes a circular tube and an anti-wear cover sleeved on the circular tube. The anti-wear cover is provided with a sensing area, which is located inside the surface of the anti-wear cover. By adopting the above technical solution, when the wear of the anti-wear cover reaches a certain level and triggers the sensing area, an alarm will be sounded in advance to prompt replacement. This can effectively ensure the normal operation and safe production of the power plant, reduce economic losses caused by leakage, and improve economic efficiency. Furthermore, this anti-wear and anti-leakage early warning device can be applied to waste heat recovery systems to improve the lifespan of the waste heat system.
[0004] Connection points are the most vulnerable to leaks, but during the implementation of this application, it was discovered that the application's early warning system did not directly monitor the corresponding connection points. Utility Model Content
[0005] The purpose of this application is to provide a low-temperature economizer leak prevention intelligent early warning device to solve the problem of the aforementioned lack of corresponding connection points for direct monitoring of early warnings.
[0006] The technical solution adopted in this application is as follows: A low-temperature economizer leak prevention intelligent early warning device includes a sealed shell, an outlet shell welded to the outer surfaces of both sides of the sealed shell, a guide shell welded to the upper surface of the outlet shell near the inlet, a flue gas monitor fixedly connected to the upper surface of the guide shell, an electrical control body provided on the outer surface of the flue gas monitor, a sulfide monitor provided on the outer surface of the outlet shell near the outlet, a connecting line fixedly connected to the outer surface of the flue gas monitor, a monitoring body fixedly connected to the outer surface of the connecting line away from the flue gas monitor, and a connecting line also fixedly connected between the monitoring body and the sulfide monitor.
[0007] By adopting the above technical solution, the overall device can be optimized from the original economizer or used directly as an economizer as needed. The monitoring main body serves as a remote control unit with a built-in control host. The outlet shell provides a stable sealing environment at the corresponding sealing pipes on both sides. On the one hand, the exposed heat exchange tubes are prone to deformation due to sudden cooling and heating, which can cause leakage. On the other hand, the space formed by the outlet shell and the guide shell allows the flue gas monitor to detect whether the economizer is leaking at the earliest possible time.
[0008] As a further description of the above technical solution, a grounding wire is fixedly connected to the outer surface of the electronic control body.
[0009] By adopting the above technical solution, the grounding wire is grounded when the flue gas monitor is monitoring flue gas, avoiding the generation of friction electrons by high-temperature reactions, which could cause a wide-ranging explosion and create safety hazards when flue gas leaks.
[0010] As a further description of the above technical solution, the upper surface of the monitoring body is provided with an external interface, and the upper surface of the monitoring body is provided with a touch screen.
[0011] By adopting the above technical solution, the electronic monitoring function can be easily expanded through an external interface, and relevant monitoring settings can be made and the control range of the warning can be adjusted through the touch screen.
[0012] As a further description of the above technical solution, a buzzer is provided on the outer surface of the monitoring body, and a light flasher is provided on the upper surface of the buzzer.
[0013] By adopting the above technical solution, the buzzer provides audible alarm processing, and the light flasher provides alarm by flashing a light source.
[0014] As a further description of the above technical solution, a heat exchange shell is welded to the inner surface of the sealed shell, and a heat exchange tube is welded to the inner surface of the heat exchange shell.
[0015] By adopting the above technical solution, the heat exchange shell, heat exchange tube, and sealing tube constitute a heat exchange plate structure. Water flows through the heat exchange tube to exchange heat and transfer the heat to the boiler to achieve the purpose of energy saving. Disassembly is carried out in the optimized scenario.
[0016] As a further description of the above technical solution, a sealing tube is provided on the outer surface of the heat exchange shell corresponding to the heat exchange tube, and an immersion shell is fixedly connected to the outer surface of the sulfide monitoring instrument.
[0017] By adopting the above technical solution, the sealing tube provides a better seal at the connection between the heat exchange shell and the heat exchange tube, and the immersion in the shell facilitates sulfide testing for the sulfide monitoring instrument.
[0018] As a further description of the above technical solution, a water outlet shell is welded to the outer surface of the sealed shell corresponding to the immersion shell side.
[0019] By adopting the above technical solution, the water outlet shell facilitates the discharge of heat-exchange water flow, while the immersion shell is used for monitoring.
[0020] As a further description of the above technical solution, an access shell is welded to the outer surface of the sealed outer shell away from the water outlet outer shell.
[0021] By adopting the above technical solution, the access shell facilitates connection with external devices, allowing cold water to be introduced into the equipment. In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0022] 1. In this application, the overall device is used as an optimization of the original economizer or directly as an economizer, depending on the needs. The monitoring main body is used as a remote control unit with a built-in control host. The outlet shell provides a stable sealing environment at the corresponding sealing pipes on both sides. On the one hand, the heat exchange tube is prone to deformation due to sudden cooling and heating when exposed, which can cause leakage. On the other hand, the space formed by the outlet shell and the guide shell can be detected by the flue gas monitor as early as possible whether the economizer is leaking.
[0023] 2. In this application, the device is equipped with an external interface through the monitoring main body to facilitate the expansion of electronic monitoring functions, thereby increasing the monitoring functions and monitoring quality of the device. Attached Figure Description
[0024] Figure 1 This is a front view of the device in this application;
[0025] Figure 2 This is a side view of the equipment in this application;
[0026] Figure 3 This is a disassembled diagram of the equipment structure in this application;
[0027] Figure 4 This is a schematic diagram of the heat exchanger body in this application;
[0028] Figure 5 This is a schematic diagram of remote monitoring in this application.
[0029] The markings in the diagram are: 1. Sealed outer shell; 2. Outlet shell; 3. Guide shell; 4. Electrical control unit; 5. Flue gas monitor; 6. Connecting wire; 7. Monitoring unit; 8. Sulfide monitor; 9. Grounding wire; 10. Auxiliary sealing shell; 11. External interface; 12. Touch screen; 13. Light flasher; 14. Buzzer; 15. Heat exchange shell; 16. Heat exchange tube; 17. Sealing tube; 18. Immersion shell; 19. Water outlet shell; 20. Inlet shell. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0032] Example:
[0033] Reference Figures 1-5 A low-temperature economizer leak prevention intelligent early warning device includes a sealed outer shell 1, an outlet outer shell 2 welded to the outer surfaces of both sides of the sealed outer shell 1, a guide outer shell 3 welded to the upper surface of the outlet outer shell 2 near the inlet, a flue gas monitor 5 fixedly connected to the upper surface of the guide outer shell 3, an electrical control body 4 set on the outer surface of the flue gas monitor 5, a sulfide monitor 8 set on the outer surface of the outlet outer shell 2 near the outlet, a connecting line 6 fixedly connected to the outer surface of the flue gas monitor 5, a monitoring body 7 fixedly connected to the outer surface of the connecting line 6 away from the flue gas monitor 5, and a connecting line 6 also fixedly connected between the monitoring body 7 and the sulfide monitor 8.
[0034] The overall device can be optimized from the original economizer or used directly as an economizer as needed. The monitoring main body 7 serves as a remote control unit with a built-in control host. The outlet shell 2 provides a stable sealing environment at the corresponding sealing pipes 17 on both sides. On the one hand, the heat exchange tube 16 is prone to deformation due to sudden cooling and heating, which can cause leakage. On the other hand, the space formed by the outlet shell 2 and the guide shell 3 allows the flue gas monitor 5 to detect whether the economizer is leaking at the earliest possible time.
[0035] Reference Figures 1-3 The outer surface of the main electrical control unit 4 is fixedly connected with a grounding wire 9.
[0036] Grounding wire 9 is used to ground the equipment when the flue gas monitor 5 is monitoring flue gas, so as to avoid the generation of friction electrons by high temperature reaction, which could cause a wide-range explosion and create a safety hazard when flue gas leaks.
[0037] Reference Figures 1-3 An external interface 11 is provided on the upper surface of the monitoring body 7, and a touch screen 12 is provided on the upper surface of the monitoring body 7.
[0038] The external interface 11 facilitates the expansion of electronic monitoring functions, and the touch screen 12 allows for the setting of relevant monitoring functions and adjustment of the control range of early warnings.
[0039] Reference Figures 1-3 A buzzer 14 is installed on the outer surface of the monitoring body 7, and a light flasher 13 is installed on the upper surface of the buzzer 14.
[0040] The buzzer 14 provides an audible alarm, and the light flasher 13 provides an alarm by flashing a light source.
[0041] Reference Figures 1-4 A heat exchange shell 15 is welded to the inner surface of the sealed shell 1, and a heat exchange tube 16 is welded to the inner surface of the heat exchange shell 15.
[0042] The heat exchange shell 15, heat exchange tube 16, and sealing tube 17 constitute a heat exchange plate structure. Water flows through the heat exchange tube 16 to exchange heat and transfer the heat to the boiler to achieve energy saving. Disassembly is performed in the optimized scenario.
[0043] Reference Figures 1-4 A sealing tube 17 is provided on the outer surface of the heat exchange shell 15 corresponding to the heat exchange tube 16, and an immersion shell 18 is fixedly connected to the outer surface of the sealing shell 1 corresponding to the sulfide monitoring instrument 8.
[0044] The sealing tube 17 provides a better seal at the connection between the heat exchange shell 15 and the heat exchange tube 16, and the immersion in the shell 18 facilitates sulfide testing for the sulfide monitor 8.
[0045] Reference Figures 1-3The sealed outer shell 1 has a water outlet outer shell 19 welded to the outer surface of the side corresponding to the immersion outer shell 18.
[0046] The outlet shell 19 facilitates the discharge of heat exchange water and is used in conjunction with the immersion shell 18 for monitoring.
[0047] Reference Figures 1-3 The sealing shell 1 is far from the water outlet shell 19, and the outer surface of the sealing shell 1 is welded with the access shell 20.
[0048] The access shell 20 facilitates connection to external devices to introduce cold water into the equipment.
[0049] The implementation principle of the intelligent early warning device for preventing leakage in a low-temperature economizer according to this application is as follows:
[0050] The overall device can be optimized from the original economizer or used directly as an economizer, depending on the needs. The monitoring main body 7 serves as a remote control unit with a built-in control host. It can be conveniently expanded with electronic monitoring functions through the external interface 11. The relevant monitoring settings can be made through the touch screen 12, and the control range of the warning can be adjusted. The buzzer 14 provides audible alarm processing, and the light flasher 13 provides alarm by flashing the light source. The heat exchange shell 15, heat exchange tube 16, and sealing tube 17 constitute a heat exchange plate structure. Water flows through the heat exchange tube 16 to exchange heat and transfer heat to the boiler to achieve energy saving. In the optimized scenario, it can be disassembled. The outlet shell 2 provides a stable sealing environment at the corresponding sealing tube 17 on both sides. On the one hand, the heat exchange tube 16 is prone to deformation due to sudden cooling and heating, which can cause leakage. The space formed by the outlet shell 2 and the guide shell 3 allows the flue gas monitor 5 to detect whether the economizer is leaking at the earliest time. The grounding wire 9 is grounded for the equipment when the flue gas monitor 5 is monitoring the flue gas, to avoid the generation of friction electrons by high temperature reaction, which could cause a wide-range explosion and create a safety hazard when the flue gas leaks.
[0051] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A low-temperature economizer leak prevention intelligent early warning device, comprising a sealed outer shell (1), characterized in that: The outer surfaces of the sealed outer shell (1) are welded with an outlet outer shell (2). The outlet outer shell (2) is welded with a guide outer shell (3) near the inlet upper surface. The guide outer shell (3) is fixedly connected with a flue gas monitor (5). The outer surface of the flue gas monitor (5) is provided with an electronic control body (4). The outlet outer shell (2) is provided with a sulfide monitor (8) near the outlet outer surface. The outer surface of the flue gas monitor (5) is fixedly connected with a connecting line (6). The outer surface of the connecting line (6) away from the flue gas monitor (5) is fixedly connected with a monitoring body (7). The monitoring body (7) and the sulfide monitor (8) are also fixedly connected with a connecting line (6).
2. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 1, characterized in that: The outer surface of the electrical control body (4) is fixedly connected with a grounding wire (9).
3. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 1, characterized in that: The monitoring body (7) has an external interface (11) on its upper surface and a touch screen (12) on its upper surface.
4. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 1, characterized in that: A buzzer (14) is provided on the outer surface of the monitoring body (7), and a light flasher (13) is provided on the upper surface of the buzzer (14).
5. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 1, characterized in that: A heat exchange shell (15) is welded to the inner surface of the sealed shell (1), and a heat exchange tube (16) is welded to the inner surface of the heat exchange shell (15).
6. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 5, characterized in that: The heat exchange shell (15) is provided with a sealing tube (17) on the outer surface of the heat exchange tube (16), and the sealing shell (1) is fixedly connected with an immersion shell (18) on the outer surface of the sulfide monitor (8).
7. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 1, characterized in that: The sealed outer shell (1) has an outlet outer shell (19) welded to the outer surface of the side corresponding to the immersion outer shell (18).
8. The intelligent early warning device for preventing leakage in a low-temperature economizer as described in claim 1, characterized in that: The sealing shell (1) is welded to the outer surface of the water outlet shell (19) with an access shell (20).