# US 2014/0150825 A1 · Cleaning device for a thermal power plant, method for installing a cleaning device and method for cleaning a thermal power plant

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- Number: US 2014/0150825 A1
- Document ID: US20140150825A1
- Status: Published application
- Kind: A1
- Application number: 14/112,148
- Filed: 2012-04-13
- Published: 2014-06-05
- Earliest claimed: 2011-04-21
- Assignees: Clyde Bergemann GmbH Maschinen-Und Apparatebau
- Inventors: Nina Heißen; Christian Mueller; Manfred Frach
- Web page: https://patentgrep.com/patent/US20140150825A1

## CPC

- F23J 3/023: {cleaning the fireside of watertubes in boilers}
- B23P 11/00: Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for (connecting sheet metal or metal tubes, rods or profiles B21D39/00; riveting B21J; soldering, unsoldering, welding B23K; hand tools for connecting wire or strip B25B25/00; connecting metal parts by adhesives F16B11/00)
- F23J 11/00: Devices for conducting smoke or fumes, e.g. flues (chimney stacks E04H12/28; removing cooking fumes from domestic stoves or ranges F24C15/20 {; fume conduits of furnaces, kilns, ovens, or retorts F27D17/302})
- F28G 1/16: using jets of fluid for removing debris (F28G1/12 takes precedence)
- F28G 15/003: {Control arrangements}
- Y10T 29/49826: Assembling or joining
- F23J: REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES (combustion apparatus for consuming smoke or fumes, e.g. exhaust gases, F23G7/06)
- B23P: METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS (arrangements for copying or controlling B23Q)
- F28G: CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS (cleaning pipes or tubes in general B08B9/02; devices or arrangements for removing water, minerals, or sludge from boilers while the boiler is in operation, or which remain in position while the boiler is in operation, or are specifically adapted to boilers without any other utility F22B37/48; removal or treatment of combustion products or combustion residues F23J; removing ice from heat-exchange apparatus F28F17/00)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

Techniques relate to a cleaning device for an interior of a thermal power plant carrying flue gases, especially a so-called soot blower. The cleaning device includes at least one rigid lance having a base and a lance add-on part which includes at least one nozzle, the lance add-on part being detachably connected to the base. At least the lance add-on part includes at least one sensor for measuring an environment parameter. The techniques further relate to a method for installing such a cleaning device and to a cleaning and monitoring method for defined areas of the interior of the thermal power plant.

## Claims

### Claim 1

A cleaning device for an interior of a thermal power plant carrying flue gas, said cleaning device comprising at least one rigid lance having a main body and at least one lance add-on part, which comprises at least one nozzle, wherein the lance add-on part is connected detachably to the main body.

### Claim 2 (depends on 1)

The cleaning device as claimed in claim 1, wherein the lance comprises a longitudinal drive for moving the lance in the direction of an axis of the lance.

### Claim 3 (depends on 1)

The cleaning device as claimed in claim 1, wherein at least the lance add-on part comprises at least one sensor for measuring an ambient parameter.

### Claim 4 (depends on 3)

The cleaning device as claimed in claim 3, wherein at least one sensor for measuring an external temperature is provided.

### Claim 5 (depends on 4)

The cleaning device as claimed in claim 4, wherein the at least one sensor is connectable to an evaluation unit, and the lance add-on part comprises connection means for a data transfer from the at least one sensor to the evaluation unit.

### Claim 6 (depends on 4)

The cleaning device as claimed in claim 4, wherein the connection means comprise at least one data transmitter for wireless connection to the evaluation unit.

### Claim 7 (depends on 1)

A thermal power plant with an interior carrying flue gas, comprising at least one cleaning device as claimed in claim 1, wherein a wall of the interior has at least one hatch, in which the lance can be introduced at least via the lance add-on part into the interior, and a longitudinal drive for moving the lance in the direction of an axis through the hatch is provided and is arranged on a side of the wall opposite the interior.

### Claim 8 (depends on 7)

The thermal power plant as claimed in claim 7, wherein the lance add-on part is formed with at least one sensor and one data transmitter for wireless connection to an evaluation unit arranged outside the interior, and the evaluation unit is connected to the longitudinal drive.

### Claim 9

A method for installing a cleaning device for an interior of a thermal power plant carrying flue gas, wherein the cleaning device comprises at least one rigid lance, and the method comprises at least the following steps:
a) separating the rigid lance of the cleaning device into a lance add-on part comprising at least one nozzle and a main body,
b) positioning at least one sensor on the lance add-on part,
c) providing remote data transfer from the sensor to an evaluation unit,
d) connecting the lance add-on part to the main body.

### Claim 10

A method for cleaning a thermal power plant comprising an interior carrying flue gas by means of at least one cleaning device, which comprises a rigid lance having at least one sensor on a lance add-on part of the lance, said method comprising at least the following steps:
i) introducing the lance add-on part in one of (a) the lance and (b) an interior of the thermal power plant,
ii) measuring an ambient parameter,
iii) transmitting the measurement signals to an evaluation unit,
iv) selecting an operating mode of the at least one cleaning device,
v) cleaning predetermined regions of the interior in accordance with the selected operating mode.

### Claim 11 (depends on 3)

The cleaning device as claimed in claim 3, wherein at least one sensor for measuring an internal temperature of the lance is provided.
