CN101327488A - Method for cleaning hydraulic tubing - Google Patents

Method for cleaning hydraulic tubing Download PDF

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Publication number
CN101327488A
CN101327488A CNA2008100540381A CN200810054038A CN101327488A CN 101327488 A CN101327488 A CN 101327488A CN A2008100540381 A CNA2008100540381 A CN A2008100540381A CN 200810054038 A CN200810054038 A CN 200810054038A CN 101327488 A CN101327488 A CN 101327488A
Authority
CN
China
Prior art keywords
fluid pressure
conduit under
under fluid
pipeline
purging
Prior art date
Application number
CNA2008100540381A
Other languages
Chinese (zh)
Inventor
王革勋
徐兰柱
卞广雪
祝德强
于晓瑞
Original Assignee
天津二十冶建设有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天津二十冶建设有限公司 filed Critical 天津二十冶建设有限公司
Priority to CNA2008100540381A priority Critical patent/CN101327488A/en
Publication of CN101327488A publication Critical patent/CN101327488A/en

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Abstract

The invention discloses a hydraulic pipe cleaning method, which includes the following steps: connecting and configuring the hydraulic pipes; and then sweeping the configured and connected well hydraulic pipes with air flow; cleaning the oil in the hydraulic pipes after sweeping. If rust reappears in the pipes, the configured hydraulic pipes need to be repeatedly cleaned with acid solution and then be swept with air flow. The cleaning method put forward in the invention has good cleaning effect, the operations are easy to learn within a short period of time, the cost is low, and the method is extremely easy to promote.

Description

A kind of clean method of conduit under fluid pressure
Technical field
The present invention relates to a kind of clean method of conduit under fluid pressure, belong to the cleaning applications of conduit under fluid pressure.
Background technology
At present, the cleaning mode of conduit under fluid pressure is mainly: after duct arrangement finishes, do not return at pipe interior and directly to carry out oil flushing under the rust situation; Perhaps when occurring in the pipeline returning the rust situation, directly carry out oil flushing behind the cycle pickling.Above-mentioned the deficiencies in the prior art part is: directly carry out oil flushing after 1, duct arrangement finishes, pipe interior is messy, and the flushing difficulty is big, and washing time is longer, and developing result is bad.2, directly carry out oil flushing behind the pipeline cycle pickling, Acidwash solution residual in the pipeline is easily with flushing oil emulsification.
Chinese patent publication number: CN1036345, open day: 1989.10.18, the patent of invention that name is called " technology for purging pipe network with air-flow impact method " discloses a kind of technology for purging pipe network, the strong air flow of utilizing pressure vessel to break suddenly and forming is impacted, and realizes the purging purpose to foreign material such as welding slag, oxide skin and stone in the pipeline.This method has simple and easy to do, and is effective, saves 90% with first-class advantage than whole ball method expense.But this technology need rely on breaking suddenly of pressure vessel when operation, and then reaches the purpose of purging, thereby in use its cost is still higher, and operation simultaneously is complicated, and the time spent is longer, and suitable for the cleaning of conduit under fluid pressure is not too desirable.
Chinese patent publication number: CN87107058, open day: 1988.05.04, the patent of invention that name is called " flusher of minor diameter conduit under fluid pressure " discloses a kind of device that washes minor diameter conduit under fluid pressure system or similar system, end in pipe-line system is equipped with two pressure power accumulating tanks, can alternately receive on pipe-line system and the groove, be used for accepting respectively the corresponding amount of liquid of appearance body with gas and liquid; This gas and a relative end that charges into pipe-line system liquid alternatedly, so that the compressed gas scapus with the flushing fluid column alternately charges in the pipe-line system, and after reaching predetermined pressure in the pipe-line system, pipe-line system is just opened to a feeder, so Compressed Gas expands suddenly, in pipe-line system, produce a strong flushing liquor pulse.But the cleanliness factor of compressed air itself be cannot say for sure to demonstrate,prove, the flushing liquor pulse that when system is washed, can produce, and it also can bring certain pollution to scouring media, thereby reduces developing result, can not guarantee the cleanliness factor of conduit under fluid pressure.
Therefore, according to the difficult point that is faced in the oil flushing in the present cleaning scheme, the technical barrier that need to solve has: 1, will guarantee before the inherent oil flushing of pipeline comparatively cleanly, improve developing result, reduce washing time.2, avoid the interior residual solution of pipeline that flushing oil is caused emulsification.3, to reduce the consumption of materials such as flushing filter core, flushing liquid, thereby save developing cost.
Summary of the invention
Purpose of the present invention is just in order to solve existing problem in the above-mentioned prior art, provides comparatively clean before the inherent oil flushing of a kind of assurance pipeline, improves developing result, reduces washing time; Avoid the interior residual solution of pipeline that flushing oil is caused emulsification; Can reduce simultaneously the consumption of materials such as flushing filter core, flushing liquid, reduce the clean method of a kind of conduit under fluid pressure of developing cost.
The objective of the invention is to realize in the following manner: a kind of clean method of conduit under fluid pressure comprises the following steps:
1. conduit under fluid pressure is connected configuration;
2. the conduit under fluid pressure that connection is configured purges;
3. the pipeline after will purging carries out oil flushing.
The another kind of technical scheme of the present invention is:
1. conduit under fluid pressure is connected configuration;
2. above-mentioned connection is configured conduit under fluid pressure and carry out cycle pickling;
3. the conduit under fluid pressure after the pickling is purged;
4. the pipeline after will purging carries out oil flushing.
Described purge step is:
A takes the head and the tail of every pipeline in the fluid pressure line apart one by one;
B connects the compressor pipeline and is purged conduit under fluid pressure with interim flexible pipe and corresponding pipe joint;
C opens the compressor gas source valve, and conduit under fluid pressure is purged, and purges and to carry out to low spot from height point, and purging is to not having that particle blows out or till anhydrous air-blowing goes out;
The intact loop of the every purging of d is about to its purging end and recovers to connect with valve platform or relevant device, and is simultaneously that tail end is good with temporary pipeline or hose loop.
Compressor source of the gas in the described purge step is air or nitrogen, and described bleed pressure is 5 * 10 5More than the Pa, flow is at 9m 3More than/the min.
Compared with prior art, the present invention has following tangible advantage:
1, the purge step of Zeng Jiaing makes the preceding conduit under fluid pressure of oil flushing comparatively clean, and developing result is good, has significantly reduced washing time; Reduce the consumption of materials such as oil flushing filter core simultaneously, thereby saved developing cost; Avoid that residual Acidwash solution causes emulsification to flushing oil in the pipeline, better protection flushing device be not damaged.
2, when occurring in the pipeline returning the rust situation, carry out cycle pickling earlier and then purge, in acid cleaning process, adopted weak acid, reduced to the pollution of environment and to the person, equipment, basic damage; Adopt an Acidwash solution groove to simplify acid cleaning process, reduced cost; Pickling, neutralization, the shared groove solution of passivation, three programs of pickling are integrated, and waste liquid is once discharged processing, is convenient to operation; Avoided hydrogen ion and chlorion in the Acidwash solution, better protection passivating film and pickling effect better.
3, principle is simple, and easy to operate, easy very easily popularizes.
The specific embodiment
The present invention is described in further detail below in conjunction with specific embodiment:
A kind of clean method of conduit under fluid pressure at first connects configuration with conduit under fluid pressure; Whether the pipeline loop that inspection connects is unimpeded, and whether the wrong part is arranged; Carry out pressure experiment simultaneously, find out the gas leakage part, remedy, for cleaning is got ready.The conduit under fluid pressure that connection is configured directly purges when not occurring returning the rust situation then, and purge step is: a takes the head and the tail of every pipeline in the fluid pressure line apart one by one; B connects the compressor pipeline and is purged conduit under fluid pressure with interim flexible pipe and corresponding pipe joint; C opens the compressor gas source valve, and conduit under fluid pressure is purged, and used Compressed Gas is oxygen or nitrogen, and bleed pressure is 5 * 10 5More than the Pa, be preferably 7 * 10 5More than the Pa, flow is at 9m 3More than/the min; So can guarantee that purging carries out to low spot from height point with the effect of every pipeline purging, blow out or till anhydrous air-blowing goes out until no particle; The intact loop of the every purging of d is about to its purging end and recovers to connect with valve platform or relevant device, and is simultaneously that tail end is good with temporary pipeline or hose loop.In addition, to large-diameter pipeline or the difficult pipeline that blows down of foul, also can select for use the explosion sweeping method to blow down.If when occurring in the pipeline returning the rust situation, the conduit under fluid pressure that above-mentioned connection is configured then will carry out cycle pickling earlier and then purge.Like this, the conduit under fluid pressure before the oil flushing is just comparatively clean, has improved ensuing oil flushing effect greatly, so also reduced washing time significantly, meanwhile also greatly reduces the consumption of material such as oil flushing filter core, thereby has further saved developing cost.Conduit under fluid pressure after will purging at last carries out oil flushing, through after the flushing of enough time and checking, is generally 40~50 hours, when being qualified during no any impurity on oil return house steward's the filter screen; Another standard is no any grit impurity on the filter screen, but allows 2~3/cm 2Macroscopic soft particle.

Claims (6)

1. the clean method of a conduit under fluid pressure is characterized in that, comprises the following steps:
1. conduit under fluid pressure is connected configuration;
2. the conduit under fluid pressure that connection is configured purges;
3. the pipeline after will purging carries out oil flushing.
2. the clean method of conduit under fluid pressure according to claim 1 is characterized in that: the purge step of described step in 2. is:
A takes the head and the tail of every pipeline in the fluid pressure line apart one by one;
B connects the compressor pipeline and is purged conduit under fluid pressure with interim flexible pipe and corresponding pipe joint;
C opens the compressor gas source valve, and conduit under fluid pressure is purged, and purges and to carry out to low spot from height point, and purging is to not having that particle blows out or till anhydrous air-blowing goes out;
The intact loop of the every purging of d is about to its purging end and recovers to connect with valve platform or relevant device, and is simultaneously that tail end is good with temporary pipeline or hose loop.
3. the clean method of a kind of conduit under fluid pressure according to claim 1 and 2, it is characterized in that: the compressor source of the gas in the described purge step is air or nitrogen, and described bleed pressure is 5 * 10 5More than the Pa, flow is at 9m 3More than/the min.
4. the clean method of a conduit under fluid pressure is characterized in that, comprises the following steps:
1. conduit under fluid pressure is connected configuration;
2. above-mentioned connection is configured conduit under fluid pressure and carry out cycle pickling;
3. the conduit under fluid pressure after the pickling is purged;
4. the pipeline after will purging carries out oil flushing.
5. the clean method of conduit under fluid pressure according to claim 4 is characterized in that: the purge step of described step in 3. is:
A takes the head and the tail of every pipeline in the fluid pressure line apart one by one;
B connects the compressor pipeline and is purged conduit under fluid pressure with interim flexible pipe and corresponding pipe joint;
C opens the compressor gas source valve, and conduit under fluid pressure is purged, and purges and to carry out to low spot from height point, and purging is to not having that particle blows out or till anhydrous air-blowing goes out;
The intact loop of the every purging of d is about to its purging end and recovers to connect with valve platform or relevant device, and is simultaneously that tail end is good with temporary pipeline or hose loop.
6. according to the clean method of claim 4 or 5 described a kind of conduit under fluid pressures, it is characterized in that: the compressor source of the gas in the described purge step is air or nitrogen, and described bleed pressure is 5 * 10 5More than the Pa, flow is at 9m 3More than/the min.
CNA2008100540381A 2008-08-01 2008-08-01 Method for cleaning hydraulic tubing CN101327488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008100540381A CN101327488A (en) 2008-08-01 2008-08-01 Method for cleaning hydraulic tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008100540381A CN101327488A (en) 2008-08-01 2008-08-01 Method for cleaning hydraulic tubing

Publications (1)

Publication Number Publication Date
CN101327488A true CN101327488A (en) 2008-12-24

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Application Number Title Priority Date Filing Date
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102371259A (en) * 2010-08-18 2012-03-14 中冶天工集团有限公司 On-line oil washing process for hydraulic pipeline
CN102389885A (en) * 2011-09-27 2012-03-28 新疆蓝山屯河聚酯有限公司 Cleaning technology for spare flux pipeline in polyester production device
CN102691699A (en) * 2012-06-21 2012-09-26 天津二十冶建设有限公司 Method for cleaning hydraulic system
CN103184464A (en) * 2013-04-08 2013-07-03 山西太钢不锈钢股份有限公司 Method for removing acid-washing gas of small-inner-diameter stainless steel seamless pipes
CN103272805A (en) * 2013-05-29 2013-09-04 国家电网公司 Cleaning method of cooling water system in converter valve
CN103934242A (en) * 2013-08-25 2014-07-23 贵州兴化化工股份有限公司 Method for purifying and cleaning semi-water gas manufacturing system
CN103962351A (en) * 2014-04-21 2014-08-06 鞍钢股份有限公司 Method for sweeping chemical raw material conveying pipelines
CN104128334A (en) * 2014-06-24 2014-11-05 中国石油天然气第一建设公司 Nitrogen-filled segmental oil flushing method for lubricating oil pipeline of compressor set
CN104196831A (en) * 2014-08-29 2014-12-10 中国十九冶集团有限公司 Hydraulic system flusher
WO2015018419A1 (en) * 2013-08-08 2015-02-12 Ocean Team Group A/S Method and system for flushing a pipe system using a fluid in a supercritical state
CN107913881A (en) * 2017-12-27 2018-04-17 中国二十冶集团有限公司 Pipe flushing endless tube construction method
CN111420946A (en) * 2020-03-31 2020-07-17 广船国际有限公司 Series washing method of fuel system

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102371259A (en) * 2010-08-18 2012-03-14 中冶天工集团有限公司 On-line oil washing process for hydraulic pipeline
CN102389885A (en) * 2011-09-27 2012-03-28 新疆蓝山屯河聚酯有限公司 Cleaning technology for spare flux pipeline in polyester production device
CN102691699A (en) * 2012-06-21 2012-09-26 天津二十冶建设有限公司 Method for cleaning hydraulic system
CN103184464A (en) * 2013-04-08 2013-07-03 山西太钢不锈钢股份有限公司 Method for removing acid-washing gas of small-inner-diameter stainless steel seamless pipes
CN103272805A (en) * 2013-05-29 2013-09-04 国家电网公司 Cleaning method of cooling water system in converter valve
CN103272805B (en) * 2013-05-29 2015-03-11 国家电网公司 Cleaning method of cooling water system in converter valve
WO2015018419A1 (en) * 2013-08-08 2015-02-12 Ocean Team Group A/S Method and system for flushing a pipe system using a fluid in a supercritical state
US10144041B2 (en) 2013-08-08 2018-12-04 Ocean Team Group A/S Method and system for flushing a pipe system using a fluid in a supercritical state
CN103934242A (en) * 2013-08-25 2014-07-23 贵州兴化化工股份有限公司 Method for purifying and cleaning semi-water gas manufacturing system
CN103962351A (en) * 2014-04-21 2014-08-06 鞍钢股份有限公司 Method for sweeping chemical raw material conveying pipelines
CN103962351B (en) * 2014-04-21 2017-04-26 鞍钢股份有限公司 Method for sweeping chemical raw material conveying pipelines
CN104128334A (en) * 2014-06-24 2014-11-05 中国石油天然气第一建设公司 Nitrogen-filled segmental oil flushing method for lubricating oil pipeline of compressor set
CN104128334B (en) * 2014-06-24 2016-01-06 中国石油天然气第一建设公司 A kind of compressor bank lubricating oil pipeline inflated with nitrogen segmentation oil flushing method
CN104196831A (en) * 2014-08-29 2014-12-10 中国十九冶集团有限公司 Hydraulic system flusher
CN107913881A (en) * 2017-12-27 2018-04-17 中国二十冶集团有限公司 Pipe flushing endless tube construction method
CN111420946A (en) * 2020-03-31 2020-07-17 广船国际有限公司 Series washing method of fuel system

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Open date: 20081224