摘要:
An apparatus is provided for cleaning one or more surfaces within a vessel (200) having a vessel wall separating a vessel exterior from a vessel interior and having a wall aperture. The apparatus has at least one elongate conduit (202) having an upstream first end and a downstream second end and positioned to direct a shockwave from the second end into the vessel interior. A source of fuel and oxidizer is coupled to the conduit (200) to deliver the fuel and oxidizer to the conduit. An initiator is positioned to initiate a reaction of the fuel and oxidizer to produce the shockwave. At least one sensor (206,207,208) coupled to the conduit (202) to detect motion indicative of a detonation. A control system coupled to the initiator, the source, and the sensor (206,207,208) for receiving input from the sensor and controlling operation of the initiator and source responsive to said input.
摘要:
Verfahren zur Reinigung von Verschmutzungen in Wärmetauschern, Abhitzekesseln oder Brennkammern, wobei die Verschmutzungen durch eine lineare Sprengung gelockert und/oder abgelöst werden.
摘要:
Methods and apparatus are provided for cleaning a surface within a vessel (20). A fuel/oxidizer charge is provided within a combustion conduit (26). An initial deflagration commenced in a first portion of the charge produces a final detonation at least in another portion of the charge to expel a shockwave from the conduit (26) which impinges upon the surface. The deflagration-to-detonation transition may be encouraged by mechanical enhancements and/or by making the first charge portion more detonable than the second. An initiator (106) is positioned to initiate a reaction of the fuel and oxidizer to produce the shock wave within the conduit for generating the shock wave. A source of purge gas (98) is positioned to introduce the purge gas to the conduit (26) to drive reaction products of the fuel and oxidizer downstream.
摘要:
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives (101) to prevent them from detonating due to the heat of the on-line facility. Thus, controlled, appropriately-timed detonation can be initiated as desired, and boiler scale and slag is removed without the need to shut down or cool down the facility. Alternative preferred embodiments include, but are not limited to: (1) using a non-liquid coolant, such as compressed air or other non-flammable gas, in place of the aforementioned liquid coolant; (2) using one or more highly-heat-resistant insulating materials (502, 504, 506) to insulate the explosive and detonator cap, in place of or in addition to the aforementioned liquid or gaseous coolants; and (3) preparing and using a highly-heat-resistant explosive device (101), in place of or in addition to the aforementioned liquid or gaseous coolants, and/or the aforementioned highly-heat-resistant insulating materials (502, 504, 506), in any desired combination.
摘要:
Bei der lokalen Zerstörung von kompakten Materialien in heißen thermischen Anlagen, beispielsweise zur Entfernung von Schlackenansätzen durch Sprengung, wobei ein Sprengmittel (5) am vorderen Ende einer langen Lanze (3) bis in unmittelbare Nähe des zu zerstörenden Materials geführt wird, besteht die Gefahr der Selbstentzündung des Sprengmittels (5) durch die vorhandene Flamm- bzw. Strahlungshitze. Um genügend Zeit für die erforderliche Positionierung des Sprengmittels (5) zu erhalten und um eine besonders effektive Sprengwirkung zu erzielen, wird gemäß der Erfindung vorgeschlagen, dass das Kühlmittel (4) in den als Doppelrohr mit Kühlkopf (10) und Versorgungskopf (11) ausgebildeten Kühlbehälter (1) über die Lanze (3) in den Versorgungskopf (11) einströmt, durch das Innenrohr bzw. den Innenkühlmantel (27) bis zum vorderen Ende des Kühlkopfes (10) geführt wird und dabei an dem das Sprengmittel (5) enthaltenden Sprengmittelbehälter (25) vorbei strömt und dann zwischen dem Innenkühlmantel (27) und dem Kühlkopfgehäuse (23) wieder zurück zum Versorgungskopf (11) und von diesem aus der heißen thermischen Anlage heraus gefördert wird. Vorzugsweise wird neben dem Sprengmittel (5) ein granulatförmiges Schüttgut (55) angeordnet, das bei der Detonation infolge der entstehenden Druckwelle gegen das zu zerstörende Material geschossen wird.
摘要:
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives (101) to prevent them from detonating due to the heat of the on-line facility. Thus, controlled, appropriately-timed detonation can be initiated as desired, and boiler scale and slag is removed without the need to shut down or cool down the facility. Alternative preferred embodiments include, but are not limited to: (1) using a non-liquid coolant, such as compressed air or other non-flammable gas, in place of the aforementioned liquid coolant; (2) using one or more highly-heat-resistant insulating materials (502, 504, 506) to insulate the explosive and detonator cap, in place of or in addition to the aforementioned liquid or gaseous coolants; and (3) preparing and using a highly-heat-resistant explosive device (101), in place of or in addition to the aforementioned liquid or gaseous coolants, and/or the aforementioned highly-heat-resistant insulating materials (502, 504, 506), in any desired combination.
摘要:
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives (101) to prevent them from detonating due to the heat of the on-line facility. Thus, controlled, appropriately-timed detonation can be initiated as desired, and boiler scale and slag is removed without the need to shut down or cool down the facility.
摘要:
A device, system and method permitting on-line explosives-based cleaning and deslagging of a fuel burning facility (31) such as a boiler, furnace, incinerator, or scrubber. A coolant, such as ordinary water, is delivered to the explosives (101) to prevent them from detonating due to the heat of the on-line facility. Thus, controlled, appropriately-timed detonation can be initiated as desired, and boiler scale and slag is removed without the need to shut down or cool down the facility.