CN-224215357-U - Boiler bottom water seal assembly

Abstract

The utility model discloses a boiler bottom water seal assembly, and relates to the technical field of optimization of boiler water seal grooves. The utility model comprises a water seal inserting plate arranged on a water wall pipe of a cold ash bucket, wherein the water seal inserting plate extends into the liquid level of the water seal groove from the top surface of the water seal groove, an ash blocking mechanism is arranged on the inner side of the water seal inserting plate, the ash blocking mechanism is provided with a flexible steel plate, the bottom side of the flexible steel plate is abutted with the top surface of the inner side of the water seal groove, and the width of the flexible steel plate is not smaller than the width of the inner side of the water seal groove, so that the problem that fine ash is adsorbed due to steam generated by the water seal groove, and the ash accumulation of the water seal groove is aggravated is solved.

Inventors

• LI WEIFENG
• SU PENG
• Tao ze
• WANG YAN
• SHI ZHANGJI
• YANG LIANPING
• REN HAIJUN

Assignees

• 大唐林州热电有限责任公司

Dates

Publication Date

20260508

Application Date

20250528

Claims (7)

1. 1. The utility model provides a boiler stove bottom water seal assembly, its characterized in that, including setting up water seal picture peg (2) on cold ash bucket water wall pipe (1), water seal picture peg (2) stretch into from the top surface of water seal groove (3) in the liquid level of water seal groove (3), ash blocking mechanism is installed to the inboard of water seal picture peg (2), ash blocking mechanism constructs flexible steel sheet (4), the bottom side of flexible steel sheet (4) with the inboard top surface butt of water seal groove (3), the width of flexible steel sheet (4) is not less than the inboard width of water seal groove (3).
2. 2. The boiler furnace bottom water seal assembly according to claim 1, characterized in that the ash blocking mechanism comprises a horizontal plate (5) fixedly mounted on the inner side of the water seal insert plate (2), a vertical mounting plate (6) extending downwards is mounted at one end of the horizontal plate (5) away from the water seal insert plate (2), and the flexible steel plate (4) is mounted at the lower end of the vertical mounting plate (6).
3. 3. The boiler furnace bottom water seal assembly according to claim 2, characterized in that the flexible steel plate (4) comprises a hard plate (8) with a U-shaped groove (7) formed in the top end, a flexible plate (9) is arranged at the lower end of the hard plate (8), the vertical mounting plate (6) is embedded and clamped in the U-shaped groove (7), and the flexible plate (9) is deflected towards one side far away from the water seal inserting plate (2) after being abutted with the water seal groove (3).
4. 4. A boiler bottom water seal assembly according to claim 3 characterized in that the horizontal ends of the U-shaped channel (7) are arranged through, the width of the U-shaped channel (7) not exceeding the thickness of the vertical mounting plate (6).
5. 5. A boiler bottom water seal assembly according to claim 3 or 4, characterized in that the hard plate (8) is detachably connected to the vertical mounting plate (6) by means of bolts (10).
6. 6. A boiler furnace water seal assembly according to claim 1, characterized in that the thickness of the flexible steel plate (4) is 0.5mm.
7. 7. The boiler bottom water seal assembly according to claim 1, characterized in that a slag blocking net (11) is further arranged on the cold wall pipe (1) of the cold ash bucket, the slag blocking net (11) is located on the inner side of the water seal tank (3), and a reinforcing baffle plate (12) is arranged in the slag blocking net (11).

Description

Boiler bottom water seal assembly Technical Field The utility model relates to the technical field of optimization of boiler water seal grooves, in particular to a boiler bottom water seal assembly. Background The industrial water source has fewer impurities, is unlikely to cause dust accumulation, has much higher dust accumulation height in the water seal tank than the outside, is higher than the water seal tank in the water seal tank, and is most critical that the dust accumulation is mainly made of fine dust and not normally understood to be mainly made of fine slag. The dust deposit in the water seal tank is mainly caused by fine dust sedimentation, so that the dust deposit height is far higher than that of the water seal tank, the temperature of smoke in the water seal tank is about 300 ℃ in normal operation, the water in the water seal tank is inevitably evaporated, and the sedimentation fine dust is continuously combined with water vapor evaporated and permeated by the upper water seal tank to cause the dust deposit to be continuously increased. The water seal tank of the boiler is blocked to cause more water-cooled wall leakage accidents, if the water seal tank cannot be thoroughly solved, the long-term safe and stable operation of the boiler is further greatly threatened. The accident that the water seal groove leaks due to frequent dust accumulation will tend to increase, and the dust accumulation in the water seal groove can be better solved by changing the water seal into the dry seal. The ash accumulation of the water seal tank can be effectively controlled by replacing the slag blocking curtain, purifying the water inlet source and optimizing the pipeline system. However, the problem of unit dust accumulation of the water seal tank cannot be solved. Disclosure of utility model The utility model aims to provide a boiler bottom water seal assembly for solving the problem that fine ash is adsorbed by steam generated by a water seal tank so as to intensify ash accumulation generated by the water seal tank. In order to solve the problems, the utility model adopts the following technical means: the utility model provides a boiler stove bottom water seal assembly, includes the water seal picture peg that sets up on cold ash bucket water wall pipe, the water seal picture peg stretches into from the top surface of water seal groove in the liquid level of water seal groove, ash blocking mechanism is installed to the inboard of water seal picture peg, ash blocking mechanism structure has flexible steel sheet, flexible steel sheet's bottom side with the inboard top surface butt of water seal groove, flexible steel sheet's width is not less than the inboard width of water seal groove. Preferably, the ash blocking mechanism comprises a horizontal plate fixedly mounted on the inner side of the water seal inserting plate, a vertical mounting plate extending downwards is mounted at one end, far away from the water seal inserting plate, of the horizontal plate, and the flexible steel plate is mounted at the lower end of the vertical mounting plate. Further, the flexible steel plate comprises a hard plate with a U-shaped groove formed in the top end, the flexible plate is installed at the low end of the hard plate, the vertical installation plate is inlaid and clamped in the U-shaped groove, and the flexible plate is abutted to the water seal groove and then deflects towards one side far away from the water seal inserting plate. Furthermore, the horizontal two ends of the U-shaped groove are penetrated, and the width of the U-shaped groove does not exceed the thickness of the vertical mounting plate. Further, the hard plate is detachably connected with the vertical mounting plate through bolts. Further, the thickness of the flexible steel plate is 0.5mm. Still further still be provided with the pushing off slag net on the cold ash bucket water wall pipe, the pushing off slag net is located the inboard of water seal tank, install the reinforcement baffle in the pushing off slag net. The utility model has the following beneficial effects in the using process: The flexible steel plate which is obliquely arranged is additionally arranged on the water seal groove, so that the dust deposit is effectively prevented from falling into the water seal groove after the fly ash in the furnace is combined with the steam of the water seal groove, the water seal groove is blocked by the dust deposit, and meanwhile, in order to reduce the flow of high-temperature flue gas at the position, the fly ash content in the flue gas is reduced. Thereby effectively reducing the dust accumulation of the water seal tank. After the device is adopted, the water seal tank is checked to have no newly increased ash deposition in operation, the furnace is stopped for checking after the operation is nearly half a year, the internal structure of the water seal tank is basically consistent with the state of being just installed, no wet ash depositio