The present disclosure relates to a soot blower including: a lance tube which includes one end that reciprocally moves in one direction on a surface of an inlet port of a flow path of the tubular heat exchanger; a drive unit which is connected to the lance tube and reciprocally moves and rotates the lance tube in the one direction; a first nozzle which is connected to the one end of the lance tube and discharges steam to the inlet port; and a second nozzle which is disposed adjacent to the first nozzle and connected to the one end of the lance tube and discharges solid particles to the inlet port, and the present disclosure relates to a method of cleaning a tubular heat exchanger by using the soot blower.

The present disclosure relates to a soot blower including: a lance tube which includes one end that reciprocally moves in one direction on a surface of an inlet port of a flow path of the tubular heat exchanger; a drive unit which is connected to the lance tube and reciprocally moves and rotates the lance tube in the one direction; a first nozzle which is connected to the one end of the lance tube and discharges steam to the inlet port; and a second nozzle which is disposed adjacent to the first nozzle and connected to the one end of the lance tube and discharges solid particles to the inlet port, and the present disclosure relates to a method of cleaning a tubular heat exchanger by using the soot blower.

A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body formed of a polymeric material, and a plurality of bristles partially encapsulated by the polymeric material of the flexible body.

A rubber ball cleaning multipoint centralized ball serving system for a condenser includes a condenser water chamber, a cooling water outlet pipe, a cooling water inlet pipe, a ball recovery net, a second isolating valve, a rubber ball pump, and a check valve. A water inlet end of the condenser water chamber is connected to a plurality of pulse ball serving valves. The plurality of pulse ball serving valves is connected to a ball adding chamber via a rubber ball transfer pipe. The rubber ball transfer pipe is connected to the cooling water inlet pipe via another pulse ball serving valve. The ball adding chamber is connected to the circulating cooling water outlet pipe via a hot water discharging pipe. The hot water discharging pipe is provided with a third isolating valve and a hot water discharging valve. A lower portion of the ball adding chamber is provided with a rubber ball discharge valve. The present system can reduce a quantity of the circulating cooling water that is heated during running of the rubber ball system and again enters the water inlet pipe of the circulating cooling water system, thereby improving a condenser circulating cooling effect. By oppositely and correspondingly operating a pulse ball serving valve and a hot water discharging valve to open or close, a great number of rubber balls are enabled to centrally enter the circulating cooling water inlet pipe and the condenser water chamber within a short time, thereby cleaning the condenser heat exchange pipe in full coverage.

A rubber ball cleaning multipoint centralized ball serving system for a condenser includes a condenser water chamber, a cooling water outlet pipe, a cooling water inlet pipe, a ball recovery net, a second isolating valve, a rubber ball pump, and a check valve. A water inlet end of the condenser water chamber is connected to a plurality of pulse ball serving valves. The plurality of pulse ball serving valves is connected to a ball adding chamber via a rubber ball transfer pipe. The rubber ball transfer pipe is connected to the cooling water inlet pipe via another pulse ball serving valve. The ball adding chamber is connected to the circulating cooling water outlet pipe via a hot water discharging pipe. The hot water discharging pipe is provided with a third isolating valve and a hot water discharging valve. A lower portion of the ball adding chamber is provided with a rubber ball discharge valve. The present system can reduce a quantity of the circulating cooling water that is heated during running of the rubber ball system and again enters the water inlet pipe of the circulating cooling water system, thereby improving a condenser circulating cooling effect. By oppositely and correspondingly operating a pulse ball serving valve and a hot water discharging valve to open or close, a great number of rubber balls are enabled to centrally enter the circulating cooling water inlet pipe and the condenser water chamber within a short time, thereby cleaning the condenser heat exchange pipe in full coverage.

A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body formed of a polymeric material, and a plurality of bristles partially encapsulated by the polymeric material of the flexible body.

A method for cleaning a coke deposit from an internal surface of a process equipment, comprising removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising a plurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig for cleaning a coke deposit from an internal surface of a process equipment without damaging a metal protective layer of the internal surface, comprising a flexible body formed of a polymeric material, and a plurality of bristles partially encapsulated by the polymeric material of the flexible body.

A system is disclosed for cleaning the interiors of tubes in heat exchangers such as condensers and other devices having numerous substantially parallel tubes which periodically become fouled, scaled, or otherwise encumbered with deposits. An air-actuated seal resides on the end of a nozzle which is projected into the open end of a condenser tube or other heat exchanger tube to be cleaned. An air cylinder and piston retract the end of the nozzle on actuation of a single trigger valve on a manually operated water gun, which both begins high pressure water flow and operates the piston. On actuation of the trigger valve, the segment of the nozzle which has been inserted is retracted a short distance, crimping a flexible sleeve which surrounds it into a tight seal on the inner surface of the tube, thus preventing backflow or back spray. The system may employ projectiles designed to pass through the tubes under pressurized water, released by the gun, in close proximity to the interior surfaces of the tubes so that they may remove the deposits with a scraping or abrading action. The air-actuated sealing nozzle relieves the operator from arduous, repeated forcing of the nozzle into the tubes to maintain sealing contact with the interiors of the tubes. The system is readily adaptable to, and includes, a multi-nozzle arrangement actuated by a single trigger.

A system is disclosed for cleaning the interiors of tubes in heat exchangers such as condensers and other devices having numerous substantially parallel tubes which periodically become fouled, scaled, or otherwise encumbered with deposits. An air-actuated seal resides on the end of a nozzle which is projected into the open end of a condenser tube or other heat exchanger tube to be cleaned. An air cylinder and piston retract the end of the nozzle on actuation of a single trigger valve on a manually operated water gun, which both begins high pressure water flow and operates the piston. On actuation of the trigger valve, the segment of the nozzle which has been inserted is retracted a short distance, crimping a flexible sleeve which surrounds it into a tight seal on the inner surface of the tube, thus preventing backflow or back spray. The system may employ projectiles designed to pass through the tubes under pressurized water, released by the gun, in close proximity to the interior surfaces of the tubes so that they may remove the deposits with a scraping or abrading action. The air-actuated sealing nozzle relieves the operator from arduous, repeated forcing of the nozzle into the tubes to maintain sealing contact with the interiors of the tubes. The system is readily adaptable to, and includes, a multi-nozzle arrangement actuated by a single trigger.