On-line monitoring wall type tangential boiler water cooling wall and monitoring method

Abstract

The invention belongs to the field of boiler water-cooled walls, and discloses an on-line monitoring wall type tangential boiler water-cooled wall and a monitoring method.According to the on-line monitoring wall type tangential boiler water-cooled wall, a thermal resistance temperature sensing element is connected to the outer portion of a parallel pipe in a sleeving mode, a connecting pipe and a temperature control device are installed on the side face, and a vertical plate is installed on the outer portion of the temperature control device, so that temperature detection can be conveniently conducted on the parallel pipe; before detection, the fastener is taken out to mount the vertical plate, then the thermal resistance temperature sensing element on one side of the connecting plate is mounted outside the parallel pipes, and then the control switch and the key body are operated, so that the temperature of the parallel pipes can be monitored, and the monitoring is relatively convenient during use.

Description

Technical Field

[0001] The invention belongs to the field of boiler water-cooled walls, and in particular relates to an online monitored wall-type tangentially circular boiler water-cooled wall and a monitoring method. Background Art

[0002] The water-cooled wall of a wall-type tangentially-shaped boiler is the main heat-receiving part of the boiler. It is arranged around the furnace and is used to absorb the radiant heat from high-temperature flames or flue gases. The water-cooled wall is composed of multiple parallel tubes with flowing water or steam inside. Its main function is to absorb the radiant heat in the furnace, generate steam or hot water, and reduce the temperature of the furnace wall to protect the furnace wall from high temperature damage. At the same time, it also helps prevent the burning coal layer from coking and improve the thermal efficiency of the boiler.

[0003] The wall-type circular boiler water-cooled wall currently on the market has the following problems when used: 1. In the actual use of traditional wall-type circular boiler water-cooled wall, the external situation of the parallel pipe is usually observed by naked eyes to analyze the stable height inside the device body. The data observed by visual observation is not only not accurate enough, but also inconvenient to detect during use; 2. When most wall-type circular boiler water-cooled walls are used, they are often protected by welding frame structures on the outside of the device body. Since it is an integrated structure, once the external protective structure is damaged due to collision, the cost of subsequent maintenance is relatively high. Therefore, it is inconvenient to replace the damaged structure during use; 3. When most wall-type circular boiler water-cooled walls are used, it is usually necessary to install the device body at a specified position. However, multiple sets of fasteners are required to assemble it, which is not fast enough during assembly. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned drawbacks of inaccurate detection results caused by inaccurate data, and to provide an online monitoring wall-type tangential boiler water-cooled wall and a monitoring method.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: In the first aspect, the present invention provides an online monitored wall-type cut-circle boiler water-cooled wall, comprising a device body, a parallel pipe is arranged on the outside of the device body, a reinforcement frame is welded on the outside of the device body, a temperature control device is arranged on the inside of the reinforcement frame, the top of the temperature control device is connected to a vertical plate, a horizontal plate is installed on the inside of the reinforcement frame, a clamping screw passes through the inside of the vertical plate, the clamping screw is threadedly connected to the horizontal plate, a connecting pipe is arranged on the side of the temperature control device, a thermal resistance temperature sensing element is installed on the other side of the connecting pipe, and a parallel pipe is arranged on the inside of the thermal resistance temperature sensing element.

[0006] A further improvement of the present invention is that a groove is provided on the outside of the reinforcement frame, a threaded rod is provided inside the groove, a cross clamp is connected to the side of the reinforcement frame, a reinforcement frame is provided on the outside of the reinforcement frame, a cross groove is provided inside the reinforcement frame, the cross clamp is embedded in the inside of the cross groove, the outside of the reinforcement frame is connected to a special-shaped plate, a circular hole is provided inside the special-shaped plate, the inside of the circular hole passes through the threaded rod, and the outside of the threaded rod is threadedly connected to a nut.

[0007] A further improvement of the present invention is that a base is provided at the bottom of the device body, and the number of the bases is provided in three groups. A plate body is provided at the bottom of the reinforcement frame, and the side of the plate body is connected to the load-bearing plate, and a slot is provided inside the load-bearing plate. The bottom of the base is connected to the plug plate, and the plug plate is embedded in the inside of the slot. A through hole is provided inside the plate body, and a fastening bolt is provided inside the through hole.

[0008] A further improvement of the present invention is that a display screen is provided on the outside of the temperature control device, and a button body and a control switch are provided on the outside of the temperature control device.

[0009] A further improvement of the present invention is that a magnetic suction groove is provided at the bottom of the reinforcement frame, a metal plate is provided on the side of the plate body, and the magnetic suction groove absorbs the metal plate by magnetic force.

[0010] A further improvement of the present invention is that the side of the reinforcement frame is connected to a mounting plate, the number of the mounting plates is four, and mounting holes are provided inside the mounting plates.

[0011] In a second aspect, the present invention provides an online monitoring method for a water-cooled wall of a wall-type tangentially circular boiler, comprising the following steps: Remove the fasteners and install the temperature control device and the thermal resistance temperature sensing element on the outside of the device body; Turn on the temperature control device, adjust the reference data, generate steam or hot water by absorbing the radiant heat in the furnace, and record the data.

[0012] A further improvement of the present invention is that when the temperature control device and the thermal resistance temperature sensing element are installed outside the device body, the fastener is screwed to control the position, and the thermal resistance temperature sensing element is sleeved on the outside of the parallel pipe.

[0013] A further improvement of the present invention is that the temperature control device is turned on, data is recorded by viewing the display screen, and an alarm is issued when an abnormal value appears.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention sleeves a thermal resistance temperature sensing element on the outside of the parallel pipe, installs a connecting pipe and a temperature control device on the side, and installs a vertical plate on the outside of the temperature control device, so it is convenient to detect the temperature of the parallel pipe. Before the detection, the fasteners are taken out to install the vertical plate, and then the thermal resistance temperature sensing element on one side of the connecting plate is installed on the outside of the parallel pipe. When operating the control switch and the button body, the temperature of the parallel pipe can be monitored, and the monitoring is more convenient during use.

[0015] Furthermore, the present invention provides a cross clamp on the outer side of the reinforcement frame, installs a reinforcement frame on the outside of the cross clamp, and passes a threaded rod through the inside of the special-shaped plate, thereby facilitating the replacement of a damaged frame structure. First, the nut on the outside of the threaded rod is reversely screwed, and then the damaged reinforcement frame is taken out from the outside of the cross clamp, and then a new reinforcement frame is taken out for replacement. Therefore, it is convenient to replace the damaged structure when it is used.

[0016] Furthermore, the present invention connects the load-bearing plate to the outside of the plate body, and embeds the plug plate inside the load-bearing plate, and a clamping screw is provided inside the plate body, so it is more convenient to assemble. First, the load-bearing plate and the plate body are taken out and placed in the specified position, and then the device body is placed on top of the plate body and the load-bearing plate, so that the plug plate at the bottom of the base is embedded in the load-bearing plate, and at the same time, the fastening bolts are taken out to fix its position, so it is more convenient to assemble during application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the groove structure of the present invention; Figure 3 It is a schematic diagram of the reinforcement frame structure of the present invention; Figure 4 It is a schematic diagram of the structure of the thermal resistance temperature sensing element of the present invention; Figure 5 It is a schematic diagram of the fastening screw structure of the present invention; Figure 6 It is a schematic diagram of the load-bearing plate structure of the present invention.

[0019] Explanation of the markings in the figure: 1. Device body; 2. Reinforcement frame; 3. Parallel pipe; 4. Cross clamp plate; 5. Cross clamp slot; 6. Groove; 7. Threaded rod; 8. Reinforcement frame; 9. Special-shaped plate; 10. Circular hole; 11. Nut; 12. Base; 13. Metal plate; 14. Magnetic suction slot; 15. Plate body; 16. Perforation; 17. Fastening bolt; 18. Insert plate; 19. Slot; 20. Temperature control device; 21. Display screen; 22. Button body; 23. Control switch; 24. Horizontal plate; 25. Vertical plate; 26. Pressing screw; 27. Connecting pipe; 28. Thermal resistance temperature sensing element; 29. ​​Mounting plate; 30. Mounting hole; 31. Load-bearing plate. DETAILED DESCRIPTION

[0020] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", 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 the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0024] See also Figures 1 to 6A wall-type circular boiler water-cooled wall for online monitoring includes a device body 1, a parallel pipe 3 is arranged on the outside of the device body 1, a reinforcement frame 2 is welded to the outside of the device body 1, a temperature control device 20 is arranged on the inner side of the reinforcement frame 2, a vertical plate 25 is connected to the top of the temperature control device 20, a horizontal plate 24 is installed on the inner side of the reinforcement frame 2, a clamping screw 26 passes through the inside of the vertical plate 25, the clamping screw is threadedly connected to the horizontal plate 24, a connecting pipe 27 is arranged on the side of the temperature control device 20, a thermal resistance temperature sensing element 28 is installed on the other side of the connecting pipe 27, and a parallel pipe 3 is arranged on the inside of the thermal resistance temperature sensing element 28.

[0025] The outside of the reinforcement frame 2 is provided with a groove 6, and the inside of the groove 6 is provided with a threaded rod 7. The side of the reinforcement frame 2 is connected to the cross clamping plate 4. The outside of the reinforcement frame 2 is provided with a reinforcement frame 8. The inside of the reinforcement frame 8 is provided with a cross clamping groove 5. The cross clamping plate 4 is embedded in the inside of the cross clamping groove 5. The outside of the reinforcement frame 8 is connected to the special-shaped plate 9. The inside of the special-shaped plate 9 is provided with a circular hole 10. The inside of the circular hole 10 passes through the threaded rod 7. The outside of the threaded rod 7 is threadedly connected to the nut 11. The bottom of the reinforcement frame 2 is provided with a magnetic suction groove 14, and the side of the plate body 15 is provided with a metal plate 13. The magnetic suction groove 14 attracts the metal plate 13 through magnetic force. The side of the reinforcement frame 2 is connected to the mounting plate 29. The number of mounting plates 29 is provided in four types, and the mounting hole 30 is provided inside the mounting plate 29.

[0026] The bottom of the device body 1 is provided with a base 12, and the number of bases 12 is provided in three groups. The bottom of the reinforcement frame 2 is provided with a plate 15, the side of the plate 15 is connected to the load-bearing plate 31, and the inside of the load-bearing plate 31 is provided with a slot 19. The bottom of the base 12 is connected to the plug plate 18, and the plug plate 18 is embedded in the inside of the slot 19. The inside of the plate 15 is provided with a through hole 16, and the inside of the through hole 16 is provided with a fastening bolt 17. The outside of the temperature control device 20 is provided with a display screen 21, and the outside of the temperature control device 20 is provided with a button body 22 and a control switch 23.

[0027] A method for monitoring a water-cooled wall of a wall-type tangentially circular boiler by online monitoring comprises the following steps: Step 1: Take out the fasteners, install the temperature control device 20 and the thermal resistance temperature sensing element 28 on the outside of the device body 1, turn the fasteners to control the position, and at the same time, sleeve the thermal resistance temperature sensing element 28 on the outside of the parallel pipe 3; The temperature control device 20 is turned on, and the reference data is adjusted for trial use. Steam or hot water is generated by absorbing the radiant heat in the furnace. The data is recorded by watching the display screen 21. When the value is abnormal, an alarm is issued.

[0028] When applying the device, the device needs to be moved to the designated position first, and then placed on a plane. However, in order to facilitate assembly, a load-bearing plate 31 is connected to the outside of the plate body 15, and a plug plate 18 is embedded inside the load-bearing plate 31. A compression screw 26 is provided inside the plate body 15. The load-bearing plate 31 is first taken out, wherein the side of the load-bearing plate 31 is connected to the plate body 15, and after placing it at the designated position, the device body 1 is then placed on top of the plate body 15 and the load-bearing plate 31, wherein a slot 19 is provided on the top of the load-bearing plate 31, and a compression screw 26 is provided inside the plate body 15. 2 is provided with an insert plate 18, which is embedded in the bearing plate 31, and the fastening bolts 17 are taken out to fix the position, so that the preliminary assembly can be completed, and then the reinforcement structure is installed on the outside of the reinforcement frame 2 using fasteners. However, in order to facilitate the detection of the parallel pipe 3, a convenient monitoring structure is installed on the outside of the parallel pipe 3, a thermal resistance temperature sensing element 28 is sleeved on the outside of the parallel pipe 3, and a connecting pipe 27 and a temperature control device 20 are installed on the side, and a vertical plate 25 is installed on the outside of the temperature control device 20. The temperature control device 20 is taken out first, and the vertical plate 25 is installed. The plate 25 is connected to its horizontal plate 24, and the compression screw 26 is screwed to fix the position. Then, the connecting pipe 27 is installed on the side of the temperature control device 20, and the thermal resistance temperature sensing element 28 is installed on the outside of the parallel tube 3. Then, the control switch 23 is turned on, and the button body 22 is clicked. The temperature is measured by using the property that the resistance of the material changes with the temperature. The thermal resistance temperature sensing element 28 is evenly sleeved on the parallel tube 3 made of insulating material made of metal. When there is a temperature gradient in the measured medium, the measured temperature is the average temperature in the medium layer within the range of the temperature sensing element, so that the parallel The connecting pipe 3 monitors the temperature in real time, and the data is more accurate during detection. Secondly, when the reinforcement frame 8 outside the reinforcement frame 2 is damaged, the maintenance personnel need to first reversely screw the nut 11 outside the threaded rod 7, and then take out the damaged reinforcement frame 8 from the outside of the cross clamp 4, and then take out the new reinforcement frame 8, and re-connect the cross slot 5 on the back of the reinforcement frame 8 to the outside of the cross clamp 4, and at the same time, pass the circular hole 10 inside the special-shaped plate 9 through the threaded rod 7, and then screw the threaded rod 7 to fix the position, so that it is convenient to replace the damaged structure, and the operation is relatively simple during replacement.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved. In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An online monitoring wall-type tangential boiler water wall, characterized in that: The device comprises a device body (1), the outside of the device body (1) is provided with a parallel pipe (3), the outside of the device body (1) is welded with a reinforcement frame (2), the inside of the reinforcement frame (2) is provided with a temperature control device (20), the top of the temperature control device (20) is connected to a vertical plate (25), the inside of the reinforcement frame (2) is installed with a horizontal plate (24), the inside of the vertical plate (25) passes through a clamping screw (26), the clamping screw is threadedly connected to the horizontal plate (24), a connecting pipe (27) is provided on the side of the temperature control device (20), a thermal resistance temperature sensing element (28) is installed on the other side of the connecting pipe (27), and the inside of the thermal resistance temperature sensing element (28) is provided with a parallel pipe (3).

2. The online monitoring wall type tangential boiler water wall according to claim 1 is characterized in that: The reinforcement frame (2) has a groove (6) formed on the outside, a threaded rod (7) is formed inside the groove (6), a side of the reinforcement frame (2) is connected to a cross clamping plate (4), a reinforcement frame (8) is formed on the outside of the reinforcement frame (2), a cross clamping groove (5) is formed inside the reinforcement frame (8), the cross clamping plate (4) is embedded inside the cross clamping groove (5), the outside of the reinforcement frame (8) is connected to a special-shaped plate (9), a circular hole (10) is formed inside the special-shaped plate (9), the threaded rod (7) is passed through the inside of the circular hole (10), and the outside of the threaded rod (7) is threadedly connected to a nut (11).

3. The on-line monitoring wall type tangential boiler water wall according to claim 1 is characterized in that: A base (12) is provided at the bottom of the device body (1), and the number of the bases (12) is set to three groups. A plate body (15) is provided at the bottom of the reinforcement frame (2). The side of the plate body (15) is connected to a load-bearing plate (31). A slot (19) is provided inside the load-bearing plate (31). The bottom of the base (12) is connected to an insert plate (18). The insert plate (18) is embedded inside the slot (19). A through hole (16) is provided inside the plate body (15), and a fastening bolt (17) is provided inside the through hole (16).

4. The online monitoring wall type tangential boiler water wall according to claim 1 is characterized in that: A display screen (21) is provided on the outside of the temperature control device (20), and a button body (22) and a control switch (23) are provided on the outside of the temperature control device (20).

5. The on-line monitoring wall type tangential boiler water wall according to claim 1 is characterized in that: A magnetic suction groove (14) is provided at the bottom of the reinforcement frame (2), a metal plate (13) is provided on the side of the plate body (15), and the magnetic suction groove (14) absorbs the metal plate (13) through magnetic force.

6. The on-line monitoring wall type tangential boiler water wall according to claim 1 is characterized in that: The side surface of the reinforcement frame (2) is connected to a mounting plate (29), the number of the mounting plates (29) is four, and a mounting hole (30) is provided inside the mounting plate (29).

7. A method for online monitoring of water-cooled wall of wall-type tangential boiler, characterized in that: An online monitoring wall-type tangential boiler water-cooled wall according to any one of claims 1 to 6 comprises the following steps: Remove the fasteners and install the temperature control device (20) and the thermal resistance temperature sensing element (28) on the outside of the device body (1); The temperature control device (20) is turned on, the reference data is adjusted, steam or hot water is generated by absorbing the radiant heat in the furnace, and data is recorded.

8. The method for monitoring the water wall of a wall-type tangential boiler by online monitoring according to claim 7 is characterized in that: When the temperature control device (20) and the thermal resistance temperature sensing element (28) are installed on the outside of the device body (1), the fastener is screwed to control the position, and the thermal resistance temperature sensing element (28) is sleeved on the outside of the parallel pipe (3).

9. The method for monitoring the water wall of a wall-type tangential boiler by online monitoring according to claim 7 is characterized in that: The temperature control device (20) is turned on, and the data is recorded by viewing the display screen (21). When the value is abnormal, an alarm is issued.

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