A wall temperature measuring device for a water wall of a power plant boiler

Abstract

The utility model provides a kind of power station boiler water cooling wall temperature measuring device, belong to water cooling wall temperature monitoring technical field, including water cooling pipe, intelligent temperature measurement alarm component and stable fixing component, intelligent temperature measurement alarm component includes the connecting plate of sliding connection in the inside of mounting groove, the utility model has beneficial effect: install the structure in multiple places of pipeline, it is convenient to utilize heat-conducting sheet to detect the temperature in water cooling pipe in real time when using, and information is transmitted to user terminal in real time by signal transceiver, to observe the temperature of water cooling pipe in real time, to handle, and when using electric thermocouple, signal can be handled in real time by intelligent temperature transmitter and automatically diagnose loop health state, once find thermocouple fault (such as broken wire) immediately information is fed back to controller, so that controller opens signal transceiver, information is sent to user terminal, and mark this position, so that user quickly comes to maintain thermocouple, to realize the purpose of intelligent temperature measurement alarm processing.

Description

Technical Field

[0001] This utility model belongs to the field of water-cooled wall temperature monitoring technology, specifically relating to a water-cooled wall temperature measuring device for power plant boilers. Background Technology

[0002] Water-cooled walls are evaporative heating surfaces composed of many parallel tubes arranged around the furnace. They are mainly used to absorb the radiant heat generated by the flames and high-temperature flue gas inside the furnace. The flowing medium inside the tubes is generally water or a two-phase mixture of water and steam, which has the function of cooling and protecting the furnace walls. A search revealed that application number "CN202321337167.8" discloses "a wall temperature measuring device for membrane water-cooled walls in power plant boilers," which describes that "installed at the metal tubes, welds, fins, etc. of the membrane water-cooled wall tubes, it can realize multi-point wall temperature measurement of the membrane water-cooled wall tubes." In addition to measuring the working fluid temperature at traditional wall temperature measuring points, the measurement can also measure the wall temperature at locations such as fins and welds to reflect the overall heating status of the membrane water-cooled wall tubes and the combustion status inside the furnace. By installing measuring points on the metal tubes, welds, and fins of the membrane water-cooled wall tubes, multi-point wall temperature measurement can be achieved. While this does reflect the overall heating status of the membrane water-cooled wall tubes and the combustion status inside the furnace, the above-mentioned comparative documents still have the following problems in actual use: In actual use, if the detection device is damaged and cannot trigger an alarm, it will be difficult to troubleshoot. In addition, its screws are prone to turning off due to heat during use, resulting in unstable fixation.

[0003] Therefore, providing a device that can realize intelligent temperature measurement alarm and fix screws is of great practicality. Utility Model Content

[0004] The purpose of this invention is to provide a device for measuring the wall temperature of water-cooled walls in power plant boilers, in order to solve the aforementioned technical problems.

[0005] This utility model provides a device for measuring the wall temperature of a power plant boiler water-cooled wall, including a water-cooled pipe, an intelligent temperature alarm component, and a stable fixing component.

[0006] The water-cooling pipe has an internal mounting groove at one end, a connecting frame at one end, and mounting strips on both sides of the connecting frame. The intelligent temperature measurement alarm component includes a connecting plate that is slidably connected inside the mounting slot. A fixing plate is provided in the middle of one end of the connecting plate. A thermocouple is provided at the bottom of the fixing plate. A heat-conducting plate is provided at the bottom of the thermocouple. An intelligent temperature transmitter is provided on one side of the top of the fixing plate. A signal transceiver is provided on the other side of the top of the fixing plate. The stabilizing and fixing assembly includes a sealing cover movably connected to one end of the connecting frame. Several screws are threadedly connected to the sealing cover and the mounting strip. A protective box is provided at one end of the sealing cover. Two limiting rods are provided inside the protective box. Two movable pieces are slidably connected to the outer walls of the two limiting rods. Several abutments are provided on one side of each of the two movable pieces. The ends of the abutments are movably connected to a rhomboid seat through the protective box. The ends of the rhomboid seats are fixedly connected to screws.

[0007] As a preferred embodiment of this utility model, a worm gear is rotatably connected to one end of the inner wall of the protective box, a worm wheel is engaged at the top of the worm gear, and a connector is provided inside the worm wheel.

[0008] As a preferred technical solution of this utility model, both sides of the connector are provided with lead screw nuts, the threads of the two lead screw nuts are corresponding, one side of the two lead screw nuts is rotatably connected to the protective box, and the outer wall of the two lead screw nuts is threadedly connected to the two moving plates.

[0009] As a preferred technical solution of this utility model, one end of the worm gear passes through the protective box and is provided with a rotating head, which is made of a high-temperature resistant material.

[0010] As a preferred embodiment of this utility model, the other end of the sealing cover is sealed and connected to a sealing strip, and an auxiliary groove is provided in the middle of the sealing strip.

[0011] As a preferred embodiment of this utility model, one end of the connecting plate is provided with a pull head, the end of the pull head matches the auxiliary groove, and a controller is provided at the top corner of the fixing plate.

[0012] In a preferred embodiment of this invention, the thermocouple, the intelligent temperature transmitter with heat-conducting sheet, and the signal transceiver are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1) The structure is installed at multiple locations in the pipeline to facilitate real-time monitoring of the temperature inside the water-cooled pipe using heat-conducting plates. The information is then transmitted to the user's terminal via a signal transceiver for real-time observation and handling. When the thermocouple is in use, the intelligent temperature transmitter processes the signal in real time and automatically diagnoses the circuit health status. Once a thermocouple fault (such as a broken wire) is detected, the information is immediately fed back to the controller, which then activates the signal transceiver to send the information to the user's terminal and marks the location. This avoids the need for users to search for the damaged part one by one, allowing for quick maintenance of the thermocouple and achieving the purpose of intelligent temperature measurement and alarm handling. 2) During use, the connecting plate and the parts at one end can be installed into the mounting groove, and the sealing cover can be installed at the connecting frame using the mounting strip and screws to seal the mounting groove. At this time, the user can rotate the rotating head to drive the worm gear to rotate, which in turn drives the worm wheel to rotate, and then drives the two lead screw nuts to rotate through the connecting head. The rotation of the two lead screw nuts will cooperate with the limit rod to drive the moving plate to move. The movement of the moving plate will drive several abutments to press against the rhomboid seat, and then fix the screws to prevent them from rotating and falling off at high temperatures, thus improving stability and achieving the purpose of stable fixation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a schematic diagram of the structure of one end of the present invention disassembled; Figure 4 This is a schematic diagram of the internal structure of the protective box of this utility model.

[0015] In the diagram: 100, water-cooled pipe; 110, connecting frame; 120, mounting strip; 200, intelligent temperature alarm assembly; 210, connecting plate; 220, fixing piece; 230, thermocouple; 240, heat-conducting plate; 250, intelligent temperature transmitter; 260, signal transceiver; 300, stabilizing and fixing assembly; 310, sealing cover; 320, screw; 330, protective box; 340, limit rod; 350, moving piece; 360, abutment; 370, rhomboid seat; 400, worm gear; 500, worm wheel; 600, connector; 700, lead screw nut; 800, rotating head; 900, sealing strip; 1000, pull head. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Example Please see Figure 1-4A device for measuring the wall temperature of a water-cooled wall in a power plant boiler includes a water-cooled pipe 100, an intelligent temperature measurement alarm component 200, and a stable fixing component 300.

[0018] Please refer to the details. Figure 1 The water-cooled pipe 100 has an installation groove inside one end, and a connecting frame 110 is provided at one end of the water-cooled pipe 100. Both sides of the connecting frame 110 are provided with installation strips 120.

[0019] Please see Figure 3 The intelligent temperature measurement alarm component 200 includes a connecting plate 210 that is slidably connected inside the mounting groove. A fixing plate 220 is provided at the middle of one end of the connecting plate 210. A thermocouple 230 is provided at the bottom of the fixing plate 220. A heat-conducting plate 240 is provided at the bottom of the thermocouple 230. An intelligent temperature transmitter 250 is provided on one side of the top of the fixing plate 220. A signal transceiver 260 is provided on the other side of the top of the fixing plate 220.

[0020] In one specific embodiment, the thermocouple 230 can be installed at multiple locations on the pipeline, facilitating real-time temperature monitoring of the water-cooled pipe 100 using the heat-conducting plate 240. The information is then transmitted in real-time to the user's terminal via the signal transceiver 260, allowing for real-time observation and handling of the water-cooled pipe 100's temperature. Furthermore, during thermocouple 230 operation, the intelligent temperature transmitter 250 processes the signal in real-time and automatically diagnoses the circuit's health status. If a thermocouple 230 malfunctions (such as a broken wire), the information is immediately fed back to the controller, causing the controller to activate the signal transceiver 260, sending the information to the user's terminal and marking its location. This avoids the need for users to search for the damaged area individually, allowing for quick maintenance of the thermocouple 230 and achieving intelligent temperature monitoring and alarm processing.

[0021] Please see Figure 2-4 The stabilizing and fixing component 300 includes a sealing cover 310 movably connected to one end of the connecting frame 110. Several screws 320 are threadedly connected to the connection between the sealing cover 310 and the mounting strip 120. A protective box 330 is provided at one end of the sealing cover 310. Two limiting rods 340 are provided inside the protective box 330. Two movable pieces 350 are slidably connected to the outer walls of the two limiting rods 340. Several abutments 360 are provided on one side of each of the two movable pieces 350. The ends of the abutments 360 are movably connected to a rhomboid seat 370 through the protective box 330. The ends of the rhomboid seat 370 are fixedly connected to the screws 320.

[0022] In one specific embodiment, the screws 320 facilitate the installation of the connecting plate 210 and the parts at one end into the mounting groove during use. The sealing cover 310 is then installed at the connecting frame 110 using the mounting strip 120 and the screws 320 to seal the mounting groove. At this time, the user can rotate the rotating head 800 to drive the worm gear 400 to rotate, which in turn drives the worm wheel 500 to rotate. This, in turn, drives the two lead screw nuts 700 to rotate through the connecting head 600. The rotation of the two lead screw nuts 700, in conjunction with the limiting rod 340, drives the moving piece 350 to move. The movement of the moving piece 350 drives several abutments 360 to abut against the rhomboid seat 370, thereby fixing the screws 320 and preventing them from rotating and falling off at high temperatures. This improves stability and achieves the purpose of stable fixing.

[0023] Please see Figure 4 The inner wall of the protective box 330 is rotatably connected to one end of a worm gear 400, and a worm wheel 500 is engaged at the top of the worm gear 400. A connector 600 is provided inside the worm wheel 500.

[0024] In one specific embodiment, the connector 600 allows the user to rotate the lead screw nut 700, which in turn drives other parts to rotate, thus improving stability.

[0025] Please see Figure 4 Both sides of the connector 600 are provided with lead screw nuts 700, the threads of the two lead screw nuts 700 are corresponding, one side of the two lead screw nuts 700 is rotatably connected to the protective box 330, and the outer wall of the two lead screw nuts 700 is threadedly connected to the two moving plates 350.

[0026] In one specific embodiment, the protective box 330 provides convenient protection for the internal components during use, and its own heat insulation effect further protects the internal components, thereby improving stability.

[0027] Please see Figure 4 One end of the worm gear 400 passes through the protective box 330 and is equipped with a rotating head 800, which is made of a high-temperature resistant material.

[0028] In one specific embodiment, the rotating head 800 is made of a high-temperature resistant material, which allows the rotating head 800 to be used stably at high temperatures, thereby improving stability and increasing practicality.

[0029] Please see Figure 3 The other end of the sealing cover 310 is sealed and connected to a sealing strip 900, and an auxiliary groove is provided in the middle of the sealing strip 900.

[0030] In one specific embodiment, the sealing strip 900 facilitates effective sealing of the mounting groove during use, and the auxiliary groove facilitates matching and integration with the pull head 1000 during use.

[0031] Please see Figure 2 One end of the connecting plate 210 is provided with a pull head 1000, the end of the pull head 1000 is matched with the auxiliary groove, and a controller is provided at the top corner of the fixing plate 220.

[0032] In one specific embodiment, the provided pull head 1000 facilitates the removal of the sealing cover 310 when the thermocouple 230 is damaged, allowing the connecting plate 210 to be pulled out and its internal parts to be replaced and maintained.

[0033] Please see Figure 1-4 The thermocouple 230, the heat-conducting plate 240, the intelligent temperature transmitter 250, and the signal transceiver 260 are all electrically connected to the controller, and the controller is electrically connected to an external power supply.

[0034] In one specific embodiment, the included controller facilitates power control of the electrical equipment during use, ensuring that the equipment is powered on when needed, thus avoiding situations where power cannot be supplied when required.

[0035] In use, the thermocouple 230 allows for real-time temperature monitoring of the water-cooled pipe 100 via the heat-conducting plate 240. The information is then transmitted in real-time to the user's terminal via the signal transceiver 260 for observation and handling. During thermocouple 230 operation, the intelligent temperature transmitter 250 processes the signal and automatically diagnoses the circuit's health. If a thermocouple 230 malfunctions (such as a broken wire), the information is immediately fed back to the controller, which then activates the signal transceiver 260 to send the information to the user's terminal and mark its location. This avoids the need for users to search for the damaged part individually, allowing for quick maintenance of the thermocouple 230 and achieving intelligent temperature monitoring and alarm handling. The screws 320 allow for easy installation of the connecting plate 210 and one end of the parts into the mounting groove during use. The sealing cover 310 is then installed at the connecting frame 110 using the mounting strip 120 and screws 320 to seal the mounting groove. The user can then rotate the rotating head 800 to drive the worm gear 400, which in turn drives the worm wheel 500. This, in turn, drives the two lead screw nuts 700 to rotate via the connecting head 600. The rotation of the two lead screw nuts 700, in conjunction with the limit rod 340, moves the moving piece 350. Finally, the movement of the moving piece 350 causes several abutments 360 to press against the rhomboid seat 370, thus securing the screws 320 and preventing them from rotating and falling off at high temperatures. This improves stability and achieves a stable fixation.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A device for measuring the wall temperature of a water-cooled wall in a power plant boiler, characterized in that, include: A water-cooled pipe (100) has an installation groove inside one end and a connecting frame (110) at one end. Both sides of the connecting frame (110) are provided with installation strips (120). The intelligent temperature measurement alarm component (200) includes a connecting plate (210) slidably connected inside the mounting groove. A fixing plate (220) is provided at the middle of one end of the connecting plate (210). A thermocouple (230) is provided at the bottom of the fixing plate (220). A heat-conducting plate (240) is provided at the bottom of the thermocouple (230). An intelligent temperature transmitter (250) is provided on one side of the top of the fixing plate (220). A signal transceiver (260) is provided on the other side of the top of the fixing plate (220). A stabilizing and fixing component (300) includes a sealing cover (310) movably connected to one end of a connecting frame (110). Several screws (320) are threadedly connected to the sealing cover (310) and the mounting strip (120). A protective box (330) is provided at one end of the sealing cover (310). Two limiting rods (340) are provided inside the protective box (330). Two movable pieces (350) are slidably connected to the outer walls of the two limiting rods (340). Several abutments (360) are provided on one side of each of the two movable pieces (350). The ends of the abutments (360) are movably connected to a rhombus seat (370) through the protective box (330). The ends of the rhombus seat (370) are fixedly connected to the screws (320).

2. The power plant boiler water-cooled wall temperature measuring device according to claim 1, characterized in that: The inner wall of the protective box (330) is rotatably connected to one end of a worm gear (400), and a worm wheel (500) is engaged at the top of the worm gear (400). A connector (600) is provided inside the worm wheel (500).

3. The power plant boiler water-cooled wall temperature measuring device according to claim 2, characterized in that: Both sides of the connector (600) are provided with lead screw nuts (700), the threads of the two lead screw nuts (700) correspond to each other, one side of the two lead screw nuts (700) is rotatably connected to the protective box (330), and the outer walls of the two lead screw nuts (700) are threadedly connected to the two moving plates (350).

4. The power plant boiler water-cooled wall temperature measuring device according to claim 3, characterized in that: One end of the worm gear (400) passes through the protective box (330) and is provided with a rotating head (800), which is made of a high-temperature resistant material.

5. The device for measuring the wall temperature of a power plant boiler water-cooled wall according to claim 1, characterized in that: The other end of the sealing cap (310) is sealed and connected to a sealing strip (900), and an auxiliary groove is provided in the middle of the sealing strip (900).

6. The device for measuring the wall temperature of a power plant boiler water-cooled wall according to claim 1, characterized in that: One end of the connecting plate (210) is provided with a pull head (1000), the end of the pull head (1000) matches the auxiliary groove, and a controller is provided at the top corner of the fixing plate (220).

7. The power plant boiler water-cooled wall temperature measuring device according to claim 6, characterized in that: The thermocouple (230), the heat-conducting plate (240), the intelligent temperature transmitter (250), and the signal transceiver (260) are all electrically connected to the controller, which is electrically connected to an external power supply.

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