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US 4,905,900 AGranted
Water cannon apparatus for cleaning a tube bundle heat exchanger, boiler, condenser, or the like
AssigneeAnco Engineers, Inc.
InventorsTerry D. Scharton, George B. Taylor
Life of this patent
Estimating the term…
Abstract
A water cannon, having an air gun disposed within its breach, for explosively discharging a quantity of water from the muzzle, which may include a constricted directional nozzle, to dislodge sludge from the tube sheet of a heat exchanger, and a method of cleaning the tube sheet of a heat exchanger are disclosed.
Claims27
A water cannon comprising:
- a. a barrel having a breech and a muzzle;
- b. an air gun inside said breech;
- c. said air gun further comprising,
- (i) a plenum for storing pressurized gas,
- (ii) a gas valve,
- (iii) at least one port in the gas valve,
- (iv) means for connecting the gas valve and the plenum, the connecting means also permitting communication of gas between the gas valve and the plenum,
- (v) a source of pressurized gas operatively connected to the gas valve;
- and
- d. at least one deflector disposed about said gas valve adjacent to the at least one gas port and between said breech and the at least one gas port, for deflecting the gas released from the at least one gas port toward said muzzle.
7 more elements
A water cannon comprising:
- a. a barrel having a breech and a muzzle;
- b. an air gun inside said breech;
- c. an extension member fixed to said muzzle for permitting adjustment of the length of said muzzle, said extension member having a muzzle-end;
- d. a nozzle fixed to the muzzle-end of said extension member;
- and
- e. a suction hose disposed in a port in said nozzle intermediate the ends of said nozzle.
3 more elements
A water cannon comprising:
- a. a barrel having a breech and a muzzle;
- b. an air gun inside said breech;
- c. an extension member fixed to said muzzle for permitting adjustment of the length of said muzzle, said extension member having a muzzle-end;
- d. a nozzle fixed to the muzzle-end of said extension member;
- and
- e. a nozzle extension affixed to said nozzle;
- and
- f. said nozzle includes a plurality of vent holes in the upper forward portion of said nozzle.
5 more elements
A water cannon comprising:
- a. a barrel having a breech and a muzzle;
- b. an air gun inside said breech;
- and
- c. an elastic membrane attached to the circumferential interior side wall of said barrel intermediate said air gun and said muzzle, and disposed transverse to said barrel.
1 more element
A water cannon comprising:
- a. a barrel having a breech and a muzzle;
- b. an air gun inside said breech;
- and
- c. a suction hose disposed in a port in said barrel adjacent to said muzzle.
1 more element
A water cannon comprising:
- a. a barrel having a breech and a muzzle;
- b. an air gun inside said breech;
- c. said air gun further at least comprising,
- (i) a gas valve,
- (ii) at least one port in the gas valve,
- d. a nozzle attached to said muzzle;
- e. at least one water inlet adjacent to said breech and communicating with the interior of said barrel attached to said breech for loading said water cannon with water;
- and
- f. at least one deflector disposed about said gas valve adjacent to the at least one gas port and between said breech and the at least one gas port, for deflecting the gas released from the at least one gas port toward said muzzle.
6 more elements
Dependencies are inferred from the claim text.