CN110496830B - Condenser pipeline dredging device and dredging method thereof - Google Patents
Condenser pipeline dredging device and dredging method thereof Download PDFInfo
- Publication number
- CN110496830B CN110496830B CN201910897220.1A CN201910897220A CN110496830B CN 110496830 B CN110496830 B CN 110496830B CN 201910897220 A CN201910897220 A CN 201910897220A CN 110496830 B CN110496830 B CN 110496830B
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- CN
- China
- Prior art keywords
- pipeline
- pipe
- long pipe
- scale
- drill bit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
- B08B9/045—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes the cleaning devices being rotated while moved, e.g. flexible rotating shaft or "snake"
Abstract
A dredging device for a condenser pipeline and a dredging method thereof are provided, the dredging device comprises a long pipe (1), a solid rod (8) welded at the top end of the long pipe, a hollow drill bit (2) welded at the front end of the long pipe, a sleeve (3) sleeved at the outer rear end of the long pipe, pressure covers (4) arranged at two ends of the sleeve, a sealing ring (5) and a sealing ring (6) arranged between the pressure covers and the sleeve, a water inlet pipe (7) inserted on the sleeve, a group of water inlet holes (1-1) leading to a central hole of the long pipe are formed in a section of long pipe positioned in the sleeve around the pipe wall, and an inner hole of the long pipe is communicated with an inner hole of the hollow drill bit. The invention can effectively remove scale in the long and narrow pipeline of the condenser, and has simple operation and high scale removal efficiency.
Description
Technical Field
The invention relates to the technical field of pipeline dredging, in particular to a dredging device and a dredging method for a condenser pipeline.
Technical Field
The condenser is auxiliary equipment of the steam turbine unit, and the heat exchange between the condenser and the steam turbine exhaust steam enables the steam turbine exhaust steam to be rapidly cooled into condensed water, so that lower unit exhaust steam back pressure is ensured, and the unit is ensured to operate in a higher efficiency interval. In the long-term running process of the unit, circulating water in a condenser pipeline is continuously evaporated and concentrated, so that bicarbonate, silicate and the like dissolved in the water are continuously decomposed and precipitated, and scaling and blocking in the condenser pipeline are caused.
The inner diameter of the condenser tube is usually below 20mm, the whole length is usually above 4000mm, and the pipeline is long and narrow and horizontally arranged. Once scaling is formed, heat exchange of the condenser is seriously affected, so that the output of the turbine unit is insufficient, and the unit efficiency is reduced. The surface roughness of the scale is far greater than that of the metal pipe wall. The core of follow-up scale deposit can be formed in the region that forms the incrustation scale, accelerates the formation of incrustation scale, finally causes the condenser pipeline to block up completely, and the condenser is scrapped.
The existing pipeline descaling method mainly comprises two types of mechanical cleaning and chemical cleaning. Mechanical cleaning is not effective in removing scale from elongated pipes due to the size of the cleaning equipment. The chemical cleaning has no requirement on pipe diameter, but the flow channel is communicated, the cleaning agent can effectively remove scale by forming circulation, and once the condenser pipe is seriously blocked, the chemical cleaning is difficult to achieve the ideal effect.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a condenser pipeline dredging device which is convenient to use and good in cleaning effect and a pipeline dredging method by the device.
The technical scheme adopted by the invention is as follows:
the utility model provides a condenser pipeline pull throughs, includes the long tube, welds in the solid pole on long tube top, welds in the hollow drill bit of long tube front end, the sleeve pipe of suit in long tube outer rear end, installs in the gland at sleeve pipe both ends, sets up sealing washer and sealing ring between gland and sleeve pipe, peg graft the inlet tube on the sleeve pipe, encircles the pipe wall on the intraductal one section long tube of being located and has seted up a set of inlet port that leads to long tube centre bore, the hole of long tube communicates with each other with the hole of hollow drill bit.
The solid rod is a square rod. The total length of the dredging device is 2500mm, the water inlet holes formed in the long pipe are 20 uniformly distributed holes, and the diameter phi of the water inlet holes is 2.5mm.
The method for dredging the condenser pipeline by adopting the dredging device comprises the following steps:
a. aiming the hollow drill bit at the inlet of the blocked condenser pipeline, firstly screwing the drill bit into the pipeline to destroy the scale surface layer in the pipeline;
b. acetic acid is introduced into a condenser pipeline through a water inlet pipe and a certain pressure is applied, and acid liquor enters a long pipe center hole through a water inlet hole and then is ejected out of the front end of a hollow drill bit, so that the acid liquor fully permeates into a gap of scale;
c. the acid liquor reacts with the scale in the pipeline, at the moment, whether bubbles are emitted from the pipeline is observed, and when no bubbles are emitted, the reaction is finished, and the scale is softened and dissolved;
d. screwing the hollow drill bit into the condenser pipeline again, and further crushing the softened scale;
e. introducing clean water into the condenser pipeline through the water inlet pipe, and flushing out scale broken by the drill bit;
f. repeating the operations of the steps b-e until the scale of the condenser pipeline is cleaned.
The dredging device can be screwed into a condenser pipeline through the hollow drill bit, the scale attached to the inner wall of the pipeline is broken, the scale in the pipeline is softened by introducing acid liquor from the water inlet pipe, and the softened scale is washed out by introducing clear water. The introduced acid liquor and clear water also play roles in cooling the hollow drill bit, lubricating and promoting slag discharge, and the drill bit can be prevented from being broken due to scalding in the screwing process. The device can effectively remove the scale in the long and narrow pipeline of the condenser, and has simple operation and high scale removal efficiency.
Drawings
FIG. 1 is an outline view of the present invention;
fig. 2 is a schematic view of the present invention in an axial section.
Detailed Description
The condenser pipeline dredging device shown in fig. 1 and 2 comprises a long pipe 1, a solid rod 8 welded at the top end of the long pipe, a hollow drill bit 2 welded at the front end of the long pipe, a sleeve 3 sleeved at the outer rear end of the long pipe, pressure covers 4 arranged at the two ends of the sleeve, a sealing ring 5 and a sealing ring 6 arranged between the pressure covers and the sleeve, a water inlet pipe 7 inserted on the sleeve, a group of water inlet holes 1-1 leading to the central hole of the long pipe are formed in a section of long pipe positioned in the sleeve, and the central hole of the long pipe is communicated with the central hole of the hollow drill bit. The long pipe is made of 06Cr19Ni10 stainless steel pipe with specification phi 12 multiplied by 2, and the overall length of the dredging device is 2500mm after the whole manufacturing and forming. 20 water inlets are uniformly distributed on a section of long tube wrapped by the sleeve and encircle the tube wall, and the diameter phi of each water inlet is 2.5mm. The hollow drill 2 is commercially available directly. The solid rod 8 is made into a square rod, so that the solid rod is convenient to be sleeved with a handle or clamped by a hand-held electric drill. The device is particularly suitable for cleaning carbonate and silicate scale in long and narrow pipelines with the inner diameter of the pipeline below 20mm and the length of the pipeline above 4000 mm.
The method for dredging the condenser pipeline by adopting the dredging device comprises the following steps:
a. aiming the hollow drill bit 2 at the inlet of a blocked condenser pipeline, firstly screwing the drill bit into the pipeline to destroy the scale surface layer in the pipeline;
b. acetic acid is introduced into a condenser pipeline through a water inlet pipe 7 and a certain pressure is applied, and acid liquor enters a long pipe center hole through a water inlet hole 1-1 and then is ejected out of the front end of a hollow drill bit, so that the acid liquor fully permeates into a gap of scale;
c. the acid liquor reacts with the scale in the pipeline, at the moment, whether bubbles are emitted from the pipeline is observed, and when no bubbles are emitted, the reaction is finished, and the scale is softened and dissolved;
d. screwing the hollow drill bit into the condenser pipeline again, and further crushing the softened scale;
e. introducing clean water into the condenser pipeline through the water inlet pipe 7 to flush out scale broken by the drill bit;
f. repeating the operations of the steps b-e until the scale of the condenser pipeline is cleaned.
Claims (3)
1. The dredging method of the condenser pipeline dredging device is characterized by comprising a long pipe (1), a solid rod (8) welded at the top end of the long pipe, a hollow drill bit (2) welded at the front end of the long pipe, a sleeve (3) sleeved at the outer rear end of the long pipe, pressing covers (4) arranged at two ends of the sleeve, a sealing ring (5) and a sealing ring (6) arranged between the pressing covers and the sleeve, a water inlet pipe (7) inserted on the sleeve, a group of water inlet holes (1-1) leading to a central hole of the long pipe are formed in a section of long pipe in the sleeve around the pipe wall, and an inner hole of the long pipe is communicated with an inner hole of the hollow drill bit; the dredging method comprises the following steps:
a. aiming the hollow drill bit (2) at the inlet of a blocked condenser pipeline, screwing the drill bit into the pipeline to destroy the scale surface layer in the pipeline;
b. acetic acid is introduced into a condenser pipeline through a water inlet pipe (7) and a certain pressure is applied, and acid liquor enters a long pipe center hole through a water inlet hole (1-1) and then is ejected out of the front end of a hollow drill bit, so that the acid liquor fully permeates into a gap of scale;
c. the acid liquor reacts with the scale in the pipeline, at the moment, whether bubbles are emitted from the pipeline is observed, and when no bubbles are emitted, the reaction is finished, and the scale is softened and dissolved;
d. screwing the hollow drill bit into the condenser pipeline again, and further crushing the softened scale;
e. introducing clean water into the condenser pipeline through the water inlet pipe, and flushing out scale broken by the drill bit;
f. and c, repeating the operations of the steps b-e until the scale of the condenser pipeline is cleaned.
2. A method for dredging a condenser pipe line according to claim 1, characterized in that the solid rod (8) is a square rod.
3. The dredging method of the condenser pipeline dredging device according to claim 1, wherein the total length of the dredging device is 2500mm, the water inlet holes (1-1) formed in the long pipe are 20 uniformly distributed holes, and the diameter phi of the water inlet holes is 2.5mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201910897220.1A CN110496830B (en) | 2019-09-23 | 2019-09-23 | Condenser pipeline dredging device and dredging method thereof |
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CN201910897220.1A CN110496830B (en) | 2019-09-23 | 2019-09-23 | Condenser pipeline dredging device and dredging method thereof |
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CN110496830A CN110496830A (en) | 2019-11-26 |
CN110496830B true CN110496830B (en) | 2023-09-19 |
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Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB636812A (en) * | 1948-05-05 | 1950-05-10 | Frederick Jerard Churchill Ann | A device for removing scale from a pipe |
DD247809A3 (en) * | 1984-08-10 | 1987-07-22 | Buna Chem Werke Veb | LIQUID, FOAMED MEDIUM FOR REMOVING HARD MUD-PLASTER PUMP STORAGE |
CN2107327U (en) * | 1991-08-29 | 1992-06-17 | 金德宝 | Drilling tool for removing hard scale from inner tube |
CN2286434Y (en) * | 1997-03-04 | 1998-07-22 | 花士光 | High efficiency device for removing scale from pipe |
JP2004209326A (en) * | 2002-12-27 | 2004-07-29 | Kajima Corp | Machine for cleaning inner surface of pipe |
CN1882819A (en) * | 2003-11-17 | 2006-12-20 | 巴斯福股份公司 | Method for removing solid material from the pipes of a heat exchanger consisting of a bundle of pipes |
CN200984580Y (en) * | 2006-12-08 | 2007-12-05 | 杨西廷 | Acid-injecting type furnace tube smoke and scale incrustation electric cleaner |
CN103182389A (en) * | 2011-12-30 | 2013-07-03 | 中国原子能科学研究院 | Physical and chemical mixed cleaning process for reactor heat exchanger |
JP2013241744A (en) * | 2012-05-18 | 2013-12-05 | Soichi Imai | Method for removing dirt on tile surface for outer wall |
CN104404545A (en) * | 2014-11-19 | 2015-03-11 | 柳州凯通机械有限公司 | Method for cleaning cooler pipeline |
TW201544057A (en) * | 2014-05-26 | 2015-12-01 | Lan Guo Entpr Co Ltd | Cleaning method for commercial coffee machine boiler |
CN210754179U (en) * | 2019-09-23 | 2020-06-16 | 云南锡业股份有限公司铜业分公司 | Condenser pipeline dredging device |
-
2019
- 2019-09-23 CN CN201910897220.1A patent/CN110496830B/en active Active
Patent Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB636812A (en) * | 1948-05-05 | 1950-05-10 | Frederick Jerard Churchill Ann | A device for removing scale from a pipe |
DD247809A3 (en) * | 1984-08-10 | 1987-07-22 | Buna Chem Werke Veb | LIQUID, FOAMED MEDIUM FOR REMOVING HARD MUD-PLASTER PUMP STORAGE |
CN2107327U (en) * | 1991-08-29 | 1992-06-17 | 金德宝 | Drilling tool for removing hard scale from inner tube |
CN2286434Y (en) * | 1997-03-04 | 1998-07-22 | 花士光 | High efficiency device for removing scale from pipe |
JP2004209326A (en) * | 2002-12-27 | 2004-07-29 | Kajima Corp | Machine for cleaning inner surface of pipe |
CN1882819A (en) * | 2003-11-17 | 2006-12-20 | 巴斯福股份公司 | Method for removing solid material from the pipes of a heat exchanger consisting of a bundle of pipes |
CN200984580Y (en) * | 2006-12-08 | 2007-12-05 | 杨西廷 | Acid-injecting type furnace tube smoke and scale incrustation electric cleaner |
CN103182389A (en) * | 2011-12-30 | 2013-07-03 | 中国原子能科学研究院 | Physical and chemical mixed cleaning process for reactor heat exchanger |
JP2013241744A (en) * | 2012-05-18 | 2013-12-05 | Soichi Imai | Method for removing dirt on tile surface for outer wall |
TW201544057A (en) * | 2014-05-26 | 2015-12-01 | Lan Guo Entpr Co Ltd | Cleaning method for commercial coffee machine boiler |
CN104404545A (en) * | 2014-11-19 | 2015-03-11 | 柳州凯通机械有限公司 | Method for cleaning cooler pipeline |
CN210754179U (en) * | 2019-09-23 | 2020-06-16 | 云南锡业股份有限公司铜业分公司 | Condenser pipeline dredging device |
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