CN109530348A - A kind of drainage pipeline high efficiency washing method - Google Patents
A kind of drainage pipeline high efficiency washing method Download PDFInfo
- Publication number
- CN109530348A CN109530348A CN201811485490.3A CN201811485490A CN109530348A CN 109530348 A CN109530348 A CN 109530348A CN 201811485490 A CN201811485490 A CN 201811485490A CN 109530348 A CN109530348 A CN 109530348A
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- CN
- China
- Prior art keywords
- drainage pipeline
- high pressure
- nitrogen
- low temperature
- washing method
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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
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0064—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes
- B08B7/0092—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by temperature changes by cooling
-
- 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
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0328—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid by purging the pipe with a gas or a mixture of gas and liquid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The present invention relates to a kind of drainage pipeline high efficiency washing methods, the first cryogenic high pressure nitrogen is injected into the drainage pipeline by elder generation, freeze grain will be formed after the Residual water progress Quick freezing inside the drainage pipeline, and it falls down, at this moment the impurity inside drainage pipeline and scale also freeze, and can moisture content be reduced, so that impurity and scale be effectively reduced to the adsorption capacity of drainage pipeline inner wall；Further by injecting the second cryogenic high pressure nitrogen into the drainage pipeline, the jelly grain is driven by the impact force of the second cryogenic high pressure nitrogen, so that power friction occurs between the jelly grain and the drainage pipeline inside, impurity and scale inside the drainage pipeline are effectively removed and are discharged by final realize, cleaning efficiency is high, and cleaning effect is good；Further, since nitrogen is inert gas, corrosion drainage pipeline will not be avoided forming drainage pipeline the generation for damaging, while also capable of effectively avoiding explosion, safety is higher.
Description
Technical field
The invention belongs to the technical fields of drainage pipeline cleaning, and in particular to a kind of drainage pipeline high efficiency washing method.
Background technique
Drainage pipeline, which has, delivers water into the channeling in specified place, be generally arranged at building interior, underground or
Inside wall.After long-time service, oxidation corrosion can occur for wall surface inside drainage pipeline, and various foreign matters are attached in pipeline wall surface
Portion, above-mentioned foreign matter, which will form solidification, as time increases makes pipe passage narrow, and not only influences drain function, it is also possible to because
The increase of the mobile pressure of water flow leads to the rupture of drainage pipeline.
Currently, predominantly following several by more common method: (1) by injecting cleaning solution inside drainage pipeline
Or high pressure water, to remove foreign matter inside pipeline；(2) by injecting high pressure water and compressed air inside drainage pipeline, and by
Waterpower and compression are fluctuated to remove foreign matter inside pipeline；(3) it by injecting washer or rotating wash bowl inside drainage pipeline, and borrows
Waterpower or Fluid pressure is helped to move washer or rotating wash bowl inside comb, it is final to realize the clear of pipeline inside foreign matter
It removes.However, the above method is for when cleaning to Large Diameter Pipeline, long range drainage pipeline, elimination efficiency to be lower, and more past
The end of drainage pipeline, cleaning effect are poorer.
Summary of the invention
In order to solve the above problems existing in the present technology, the present invention provides a kind of cleaning efficiency height, cleaning effect are good
Drainage pipeline cleaning method.
The technical scheme adopted by the invention is as follows:
A kind of drainage pipeline high efficiency washing method, includes the following steps:
(1) the first cryogenic high pressure nitrogen is injected in Xiang Suoshu drainage pipeline, so that the remaining inside the drainage pipeline
Moisture freezes, and is formed and freezes grain, and the pressure of the first high pressure low temperature nitrogen is 8-12kgf/cm2, and first height forces down
The temperature of warm nitrogen is -191~-193 DEG C；
(2) the second cryogenic high pressure nitrogen is injected in Xiang Suoshu drainage pipeline, is driven using the second cryogenic high pressure nitrogen
Impurity inside the drainage pipeline is removed and is discharged by the jelly grain, and the pressure of the second high pressure low temperature nitrogen is 30-
40kgf/cm2, the temperature of the first high pressure low temperature nitrogen are -191~-193 DEG C.
The injection length of the first high pressure low temperature nitrogen is 10-15s.
The injection length of the second high pressure low temperature nitrogen is 12-20s.
In step (1), water is also injected while the first cryogenic high pressure nitrogen is injected in Xiang Suoshu drainage pipeline.
The water is first subjected to decentralized processing and forms dispersion droplet or dispersing water flow, then is injected.
First the first cryogenic high pressure nitrogen be thoroughly mixed to form with the dispersion droplet or dispersing water flow compound
Cleaning system, then the composite cleaning system is injected into the drainage pipeline.
The invention has the benefit that
(1) drainage pipeline cleaning method of the present invention injects the first low temperature height by elder generation into the drainage pipeline
Nitrogen is pressed, jelly grain is formed after the Residual water inside the drainage pipeline is carried out Quick freezing, and fall down, at this moment arranges
Impurity and scale inside waterpipe also freeze, and can moisture content be reduced, so that impurity and scale be effectively reduced
To the adsorption capacity of drainage pipeline inner wall；Further by injecting the second cryogenic high pressure nitrogen into the drainage pipeline, by institute
The impact force for stating the second cryogenic high pressure nitrogen drives the jelly grain, so that occurring between the jelly grain and the drainage pipeline inside
Impurity and scale inside the drainage pipeline are effectively removed and are discharged by power friction, final realize, cleaning efficiency is high, clearly
It is good to wash effect；Data show, using the method for the invention to using 12 years drainage pipelines below to clean after, impurity is clear
Except rate is up to 99% or more, after using the drainage pipeline of 12-22 to clean, impurity clearance rate can also reach 75-85%,
To absolutely prove the method for the invention cleaning effect with higher；Further, since nitrogen is inert gas, it will not be to corruption
Drainage pipeline is lost, avoids forming drainage pipeline the generation for damaging, while also capable of effectively avoiding explosion, ambient enviroment will not be made
At pollution, safety is higher.
(2) drainage pipeline cleaning method of the present invention, by limit the pressure of the first high pressure low temperature nitrogen as
8-12kgf/cm2, the pressure of the second high pressure low temperature nitrogen are 30-40kgf/cm2, the pressure of the first high pressure low temperature nitrogen
Power is less than the pressure of the second high pressure low temperature nitrogen, thus will be in the drainage pipeline first with the first high pressure low temperature nitrogen
The Residual water in portion forms jelly grain after carrying out Quick freezing, and falls down, and recycles the second high pressure low temperature nitrogen of bigger pressure
After gas drives the impurity inside the jelly grain and drainage pipeline that power friction occurs, impurity in pipeline effectively remove side by side
Out, cleaning efficiency is higher, and cleaning effect is more preferable.
(3) drainage pipeline cleaning method of the present invention injects the first cryogenic high pressure nitrogen in Xiang Suoshu drainage pipeline
While also injection dispersion droplet or dispersing water flow, and the first cryogenic high pressure nitrogen and the dispersion droplet or disperse water
Stream is first sufficiently mixed is passed through the drainage pipeline again, to form more jelly grains, is conducive to further increase the jelly
Grain the drainage pipeline inside between frictional force, it is ensured that by inside drainage pipeline impurity or scale carry out efficiently remove simultaneously
Discharge.
Specific embodiment
Below in conjunction with the embodiment of the present invention, the technical solution in the present invention is clearly and completely described, is shown
So, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment 1
The present embodiment provides a kind of drainage pipeline high efficiency washing method, the service life of the drainage pipeline is 8 years, described
Cleaning method includes the following steps:
(1) the first cryogenic high pressure nitrogen that injection pressure is 8kgf/cm2 in Xiang Suoshu drainage pipeline, temperature is -191 DEG C
10s is formed so that Quick freezing occurs for the Residual water inside the drainage pipeline and is frozen grain；
(2) the second cryogenic high pressure nitrogen that injection pressure is 30kgf/cm2 in Xiang Suoshu drainage pipeline, temperature is -191 DEG C
12s drives the jelly grain that the impurity inside the drainage pipeline is removed and is discharged using the second cryogenic high pressure nitrogen, miscellaneous
Matter clearance rate is up to 99%.
Embodiment 2
The present embodiment provides a kind of drainage pipeline high efficiency washing method, the service life of the drainage pipeline is 14 years, institute
Cleaning method is stated, is included the following steps:
It (1) by nitrogen flow in pipes and filling pipe by pressure is respectively 12kgf/cm2, first that temperature is -193 DEG C
Cryogenic high pressure nitrogen and water inject drainage pipeline together, wherein the ratio between the first cryogenic high pressure nitrogen and the injected slurry volume of water
For 90:10；Injection length is 10s, so that the water of Residual water and injection inside the drainage pipeline occurs rapidly to freeze
Knot, forms more jelly grain；
(2) the second cryogenic high pressure nitrogen that injection pressure is 40kgf/cm2 in Xiang Suoshu drainage pipeline, temperature is -193 DEG C
20s drives the jelly grain that the impurity inside the drainage pipeline is removed and is discharged using the second cryogenic high pressure nitrogen, miscellaneous
Matter clearance rate is up to 75%.
Embodiment 3
The present embodiment provides a kind of drainage pipeline high efficiency washing method, the service life of the drainage pipeline is 22 years, institute
Cleaning method is stated to include the following steps:
(1) water is first subjected to decentralized processing and forms dispersion droplet or dispersing water flow, then by the dispersion droplet or disperse water
The first cryogenic high pressure nitrogen that flowing with pressure is 10kgf/cm2, temperature is -192 DEG C is sufficiently mixed, and composite cleaning body is formed
System；Wherein, the ratio between injected slurry volume of the first cryogenic high pressure nitrogen and water is 99:1；
The composite cleaning system is injected into the drainage pipeline again later, injection length 12s, so that described
The dispersion droplet or disperse water of Residual water and injection inside drainage pipeline freeze, and form more jelly grain；
(2) the second low temperature that first first time injection pressure is 35kgf/cm2 into the drainage pipeline, temperature is -192 DEG C
High pressure nitrogen 16s, then second of injection pressure is 35kgf/cm2, temperature is -192 DEG C second low into the drainage pipeline
Warm high pressure nitrogen 18s drives the jelly grain that the impurity inside the drainage pipeline is clear using the second cryogenic high pressure nitrogen
It removes and is discharged, impurity clearance rate is up to 85%.
Embodiment 4
The present embodiment provides a kind of drainage pipeline high efficiency washing method, the service life of the drainage pipeline is 10 years, institute
Cleaning method is stated to include the following steps:
(1) water is first subjected to decentralized processing and forms dispersion droplet or dispersing water flow, then by the dispersion droplet or disperse water
The first cryogenic high pressure nitrogen that flowing with pressure is 12kgf/cm2, temperature is -191 DEG C is sufficiently mixed, and composite cleaning body is formed
System；Wherein, the ratio between injected slurry volume of the first cryogenic high pressure nitrogen and water is 99:5；
The composite cleaning system is injected into the drainage pipeline again later, injection length 12s, so that described
The dispersion droplet or disperse water of Residual water and injection inside drainage pipeline freeze, and form more jelly grain；
(2) the second low temperature that first first time injection pressure is 32kgf/cm2 into the drainage pipeline, temperature is -191 DEG C
High pressure nitrogen 12s, then second of injection pressure is 40kgf/cm2, temperature is -193 DEG C second low into the drainage pipeline
Warm high pressure nitrogen 16s, finally third time injection pressure is 38kgf/cm2 into the drainage pipeline, temperature is -192 DEG C the
Two cryogenic high pressure nitrogen 20s, to drive the jelly grain will be inside the drainage pipeline using the second cryogenic high pressure nitrogen
Impurity efficiently removed and be discharged, impurity clearance rate is up to 99.5%.
Embodiment 5
The present embodiment provides a kind of drainage pipeline high efficiency washing method, the service life of the drainage pipeline is 12 years, institute
Cleaning method is stated to include the following steps:
(1) water is first subjected to decentralized processing and forms dispersion droplet or dispersing water flow, then by the dispersion droplet or disperse water
The first cryogenic high pressure nitrogen that flowing with pressure is 12kgf/cm2, temperature is -191 DEG C is sufficiently mixed, and composite cleaning body is formed
System；Wherein, the ratio between injected slurry volume of the first cryogenic high pressure nitrogen and water is 99:5；
The composite cleaning system is injected into the drainage pipeline again later, injection length 12s, so that described
The dispersion droplet or disperse water of Residual water and injection inside drainage pipeline freeze, and form more jelly grain；
(2) the second low temperature that first first time injection pressure is 32kgf/cm2 into the drainage pipeline, temperature is -191 DEG C
High pressure nitrogen 12s, then second of injection pressure is 40kgf/cm2, temperature is -193 DEG C second low into the drainage pipeline
Warm high pressure nitrogen 16s, finally third time injection pressure is 38kgf/cm2 into the drainage pipeline, temperature is -192 DEG C the
Two cryogenic high pressure nitrogen 20s, to drive the jelly grain will be inside the drainage pipeline using the second cryogenic high pressure nitrogen
Impurity efficiently removed and be discharged, impurity clearance rate is up to 99.3%.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Claims (6)
1. a kind of drainage pipeline high efficiency washing method, which comprises the steps of:
(1) the first cryogenic high pressure nitrogen is injected in Xiang Suoshu drainage pipeline, so that the Residual water inside the drainage pipeline
Freeze, formed and freeze grain, the pressure of the first high pressure low temperature nitrogen is 8-12kgf/cm2, the first high pressure low temperature nitrogen
The temperature of gas is -191~-193 DEG C,
(2) the second cryogenic high pressure nitrogen is injected in Xiang Suoshu drainage pipeline, using described in the second cryogenic high pressure nitrogen drive
Freeze grain the impurity inside the drainage pipeline is removed and is discharged, the pressure of the second high pressure low temperature nitrogen is 30-40kgf/
Cm2, the temperature of the first high pressure low temperature nitrogen are -191~-193 DEG C.
2. drainage pipeline high efficiency washing method according to claim 1, which is characterized in that the first high pressure low temperature nitrogen
The injection length of gas is 10-15s.
3. drainage pipeline high efficiency washing method according to claim 1, which is characterized in that the second high pressure low temperature nitrogen
The injection length of gas is 12-20s.
4. drainage pipeline high efficiency washing method according to claim 1, which is characterized in that in step (1), to the row
Water is also injected while injecting the first cryogenic high pressure nitrogen in waterpipe.
5. drainage pipeline high efficiency washing method according to claim 4, which is characterized in that first disperse the water
Processing forms dispersion droplet or dispersing water flow, then is injected.
6. drainage pipeline high efficiency washing method according to claim 5, which is characterized in that first that first low temperature is high
Pressure nitrogen and the dispersion droplet or dispersing water flow be thoroughly mixed to form composite cleaning system, then by the composite cleaning body
The drainage pipeline injects in system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485490.3A CN109530348A (en) | 2018-12-06 | 2018-12-06 | A kind of drainage pipeline high efficiency washing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811485490.3A CN109530348A (en) | 2018-12-06 | 2018-12-06 | A kind of drainage pipeline high efficiency washing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109530348A true CN109530348A (en) | 2019-03-29 |
Family
ID=65854110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811485490.3A Withdrawn CN109530348A (en) | 2018-12-06 | 2018-12-06 | A kind of drainage pipeline high efficiency washing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109530348A (en) |
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2018
- 2018-12-06 CN CN201811485490.3A patent/CN109530348A/en not_active Withdrawn
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190329 |
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| WW01 | Invention patent application withdrawn after publication |