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CN-115751281-B - Real-time online detection instrument for boiler expansion

CN115751281BCN 115751281 BCN115751281 BCN 115751281BCN-115751281-B

Abstract

The invention belongs to the technical field of boiler detection, in particular to a real-time online detection instrument for the expansion amount of a boiler, which aims at the problem that the existing detection equipment is easy to cause damage to the detection equipment when encountering stronger pressure impact, and the invention provides a scheme that the real-time online detection instrument comprises a mounting cover, wherein a detection assembly is connected in the mounting cover, the left side of the detection assembly extends to the outer side of the mounting cover, a gas pipe is connected on the detection assembly, a detection box is fixedly arranged at the top of the mounting cover, the invention has reasonable structure, can transfer the generated pressure to the pressure sensor after the stress plate receives the air pressure in the boiler, can detect the air pressure in the boiler in real time by using the pressure sensor, and can avoid overlarge hard pressure received by the pressure sensor under the buffer support of the elastic component, thereby not damaging the pressure sensor.

Inventors

  • WANG YONGHONG
  • SUN CHAO
  • LI WEICHANG
  • CHEN BIAO

Assignees

  • 大唐万宁天然气发电有限责任公司
  • 中国大唐集团科学技术研究总院有限公司华东电力试验研究院
  • 南京星空能源科技有限公司

Dates

Publication Date
20260505
Application Date
20221028

Claims (6)

  1. 1. The utility model provides a real-time online detection instrument of boiler expansion volume, includes installation cover (1), a serial communication port, be connected with the detection subassembly in installation cover (1), the left side of detection subassembly extends to the outside of installation cover (1), be connected with gas-supply pipe (10) on the detection subassembly, the top fixed mounting of installation cover (1) has detection case (11), the top of gas-supply pipe (10) extends to in detection case (11) and with the right side inner wall fixed connection of detection case (11), the pressure measurement subassembly is installed on the top of gas-supply pipe (10), the pressure measurement subassembly is connected with the left side inner wall of detection case (11), the front side fixed mounting of detection case (11) has display (12), display (12) are connected with the pressure measurement subassembly, the pressure measurement subassembly includes mounting bracket (13), depression bar (15), clamp plate (16), pressure sensor (14), connecting cover (18), seal gasket (20) and elastic component, 13) fixed mounting is in detection case (11) and the left side inner wall (14) and the pressure sensor (16) are located in the fixed mounting bracket (13) and the pressure sensor (13) is fixed on the inner wall of the side of detection case (11), the compression bar (15) is in sliding connection with the mounting frame (13), the sealing box (19) is in sliding connection with the inside of the cover (18), the connecting cover (18) is fixedly arranged on the right inner wall of the detection box (11), the sealing gasket (20) is fixedly arranged on the right side of the sealing box (19), the sealing gasket (20) is in sealing sliding connection with the inner wall of the connecting cover (18), the gas pipe (10) is communicated with the connecting cover (18), the elastic member is arranged in the sealing box (19), the right end of the compression bar (15) extends into the sealing box (19) and is connected with the elastic member, the elastic member comprises a moving ring (21), two rotating rods (23), two connecting plates (22), two supporting shafts (24) and two torsion springs (17), the moving ring (21) is in sliding connection with the sealing box (19), the right end of the compression bar (15) is fixedly connected with the left side of the sealing ring (21), the two rotating rods (23) are symmetrically connected with the inner wall of the sealing box (19) in a rotating way, the two corresponding rotating shafts (24) are connected with the connecting plates (24) in a sliding way, and the two connecting plates (24) are connected with one end of the connecting plates (24) in a rotating way, the torsion spring (17) is sleeved on the corresponding supporting shaft (24), the torsion spring (17) is located at the front side of the connecting plate (22), and the front end and the rear end of the torsion spring (17) are fixedly connected with the front end of the supporting shaft (24) and the front side of the connecting plate (22) respectively.
  2. 2. The real-time online detection instrument for the expansion amount of the boiler according to claim 1, wherein the detection assembly comprises a supporting plate (4), a pushing member and a supporting cover (7), the supporting plate (4) is fixedly installed on the inner wall of the installation cover (1), the pushing member penetrates through the supporting plate (4) and is connected with the supporting plate (4), the supporting cover (7) is fixedly installed on the inner wall of the installation cover (1), the left side of the pushing member extends into the supporting cover (7) and is connected with the inner wall of the supporting cover (7), the bottom end of the gas pipe (10) extends into the supporting cover (7) and is fixedly connected with the right side inner wall of the supporting cover (7), and the left side of the pushing member extends to the outer side of the installation cover (1).
  3. 3. The real-time online detection instrument for the expansion amount of the boiler according to claim 2, wherein the pushing component comprises a stress plate (6), a moving rod (5) and a pushing plate (8), the moving rod (5) penetrates through the supporting plate (4) and is in sliding connection with the supporting plate (4), the right end of the moving rod (5) extends into the supporting cover (7) and is fixedly connected with the pushing plate (8), the pushing plate (8) is in sealing sliding connection with the inner wall of the supporting cover (7), and the left end of the moving rod (5) extends to the outer side of the mounting cover (1) and is fixedly connected with the stress plate (6).
  4. 4. The real-time online detector for the expansion amount of the boiler according to claim 3, wherein a return spring (9) positioned on the right side of the supporting plate (4) is sleeved on the moving rod (5), and the left end and the right end of the return spring (9) are fixedly connected with the right side of the supporting plate (4) and the left side of the push plate (8) respectively.
  5. 5. The real-time on-line detector for the expansion amount of the boiler according to claim 1, wherein a plurality of fixing plates (2) are fixedly arranged on the front side and the rear side of the installation cover (1) at equal intervals, and fixing holes are formed in the fixing plates (2).
  6. 6. The real-time on-line detector for the expansion amount of the boiler according to claim 1, wherein a rubber ring (3) is fixedly arranged on the front side of the installation cover (1).

Description

Real-time online detection instrument for boiler expansion Technical Field The invention relates to the technical field of boiler detection, in particular to a real-time online detection instrument for boiler expansion. Background The development of new energy power generation and the surplus of coal power production promote the flexible transformation of coal power step by step. Thermal power generating units, particularly coal motor units, continue to run under low load or deeply peak-shaving into a normal state. The peak shaving process is the process of changing the internal thermophysical characteristics and thermal stress distribution of the boiler. When the deformation of the boiler exceeds the bearing capacity of the components, the boiler is damaged and broken, and even an unplanned furnace is stopped, so that the safe operation of a power station is seriously threatened. Therefore, the real-time continuous monitoring of the expansion condition of the boiler is of great significance to the safe operation of the boiler. At present, when the expansion pressure in the boiler is tested, mechanical pressure detection equipment is generally adopted, but when stronger pressure impact is encountered, the detection equipment is easy to damage, so we propose a real-time online detection instrument for the expansion amount of the boiler, which is used for solving the problems. Disclosure of Invention Based on the technical problem that the detection equipment is easy to damage when strong pressure impact is encountered in the background technology, the invention provides a real-time online detection instrument for the expansion amount of a boiler. The invention provides a real-time online detection instrument for the expansion amount of a boiler, which comprises a mounting cover, wherein a detection assembly is connected in the mounting cover, the left side of the detection assembly extends to the outer side of the mounting cover, a gas pipe is connected to the detection assembly, a detection box is fixedly arranged at the top of the mounting cover, the top end of the gas pipe extends into the detection box and is fixedly connected with the right side inner wall of the detection box, a pressure measuring assembly is arranged at the top end of the gas pipe, the pressure measuring assembly is connected with the left side inner wall of the detection box, a display is fixedly arranged at the front side of the detection box, and the display is connected with the pressure measuring assembly. By means of the structure, after the detection assembly receives the air pressure in the boiler, the pushed air can be conveyed into the pressure measuring assembly through the air conveying pipe, so that the air pressure in the boiler can be monitored in real time, the monitored data can be transmitted to the display for display, and therefore the real-time observation of workers can be facilitated. Preferably, the detection assembly comprises a supporting plate, a pushing member and a supporting cover, wherein the supporting plate is fixedly arranged on the inner wall of the installation cover, the pushing member penetrates through the supporting plate and is connected with the supporting plate, the supporting cover is fixedly arranged on the inner wall of the installation cover, the left side of the pushing member extends into the supporting cover and is connected with the inner wall of the supporting cover, the bottom end of the gas pipe extends into the supporting cover and is fixedly connected with the right side inner wall of the supporting cover, and the left side of the pushing member extends to the outer side of the installation cover. Further, after the pushing member receives the air pressure, the pushing member can move, and at the moment, the air in the supporting cover can be conveyed into the pressure measuring assembly through the air conveying pipe, so that the pressure measuring assembly can be operated, and pressure detection is carried out. Preferably, the pushing member comprises a force bearing plate, a moving rod and a pushing plate, wherein the moving rod penetrates through the supporting plate and is in sliding connection with the supporting plate, the right end of the moving rod extends into the supporting cover and is fixedly connected with the pushing plate, the pushing plate is in sealing sliding connection with the inner wall of the supporting cover, and the left end of the moving rod extends to the outer side of the mounting cover and is fixedly connected with the force bearing plate. Further, the pressure plate is utilized to sense the air pressure in the boiler, the movable rod can be pushed to move, and at the moment, the air in the supporting cover can be conveyed into the pressure measuring assembly under the pushing of the push plate. Preferably, the movable rod is sleeved with a reset spring positioned on the right side of the support plate, and the left end and the right end of the reset