CN104324918B - A kind of cleaning method of steam jet pump cleaning device for inner wall - Google Patents
A kind of cleaning method of steam jet pump cleaning device for inner wall Download PDFInfo
- Publication number
- CN104324918B CN104324918B CN201410505525.0A CN201410505525A CN104324918B CN 104324918 B CN104324918 B CN 104324918B CN 201410505525 A CN201410505525 A CN 201410505525A CN 104324918 B CN104324918 B CN 104324918B
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- Prior art keywords
- pump
- cleaning
- vacuum
- grades
- ejector
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Classifications
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- 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
-
- 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
- B08B9/0325—Control mechanisms therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses a kind of steam jet pump cleaning device for inner wall, described ejector pump is located in molten steel vacuum treatment installation, and described molten steel vacuum treatment installation is connected with the steam vent of vacuum tank by vacuum pipe；Described ejector pump presses vacuum exhaust direction, including one-level ejector pump, two-stage injection pump and three grades of ejector pumpes；The pipeline of described molten steel vacuum treatment installation is provided with cleaning spray structure.The invention also discloses the cleaning method of this device.Use technique scheme, at the scene in the case of limited location, it is provided that cleaning steam jet pump inwall dust stratification cleaning plant, solve the difficulty of prior art；Control each according to electromagnetic valve switch and clean some beginning cleaning showers, automatic hydraulic giant water horning tube wall, both alleviated labor strength, and in turn ensure that the vacuum effectiveness of molten steel；Can ensure that being positioned at the nozzle below the pump housing is not plugged up；The pump housing is arranged below drain pipe, can get rid of the filthy water after cleaning showers.
Description
Technical field
The invention belongs to metallurgical industry and produce the technical field of equipment.Relate to steelmaking equipment structure.More specifically
Say, the present invention relates to the cleaning method of a kind of steam jet pump cleaning device for inner wall.
Background technology
At present, in steelmaking process, in order to reduce the gas content in molten steel, it is necessary to molten steel is carried out vacuum
Process, and the most frequently used equipment of evacuation is exactly steam jet pump.
As it is shown in figure 1, be steam jet pump evacuation schematic diagram.Ladle 7 is located in vacuum tank 8, vacuum
Arranging steam vent 9 on tank 8, steam vent 9 is connected with ejector pump 10 by pipeline, by the order of pipeline respectively
One-level, two grades and three grades of ejector pumpes are set.
The pressure steam more than 0.8MPa, by after Laval nozzle, produces negative pressure at mixing chamber, is inhaled by furnace gas
Enter in the pump housing, but when waste gas passes through ejector pump, the slag dirt in waste gas can adsorb on ejector vacuum pump inwall,
Knot ash changes the geometric shape of ejector pump inwall too much, causes the service behaviour of vacuum pump to decline, vacuum tank
Interior vacuum is unable to reach requirement, now needs to clear up its inwall timing.
In the prior art, cleaning inwall slag dirt mode uses artificial deashing, and operator are crept into by manhole
In vacuum-pump line, because pipeline is narrow, the method labor intensity is big, deashing speed is slow, poor stability, and
And the thinnest aditus laryngis position personnel of pipeline cannot arrive, cleaning effect is the most undesirable.
Summary of the invention
The present invention provides the cleaning method of a kind of steam jet pump cleaning device for inner wall, its objective is ensureing steel
On the premise of the vacuum effectiveness of water, alleviate labor strength.
For achieving the above object, adopt the technical scheme that:
The steam jet pump cleaning device for inner wall of the present invention, described ejector pump is located at molten steel vacuum treatment installation
In, described molten steel vacuum treatment installation is connected with the steam vent of vacuum tank by vacuum pipe；Described spray
Penetrate pump by vacuum exhaust direction, including one-level ejector pump, two-stage injection pump and three grades of ejector pumpes.Described steel
The pipeline of water vacuum treatment installation is provided with cleaning spray structure.
Described cleaning showers structure is respectively at primary pump mixing chamber, a two stage pump connecting bend, two stage pump
Mixing chamber, two triplex connecting bends, triplex mixing chamber, triplex condenser connecting bend arrange spray
Clean point.
The structure of each described cleaning showers point is: uniform three sprays of cross section at described vacuum pipe
Rifle head, the perforate from the tube wall of vacuum pipe of described lance head is inserted in tube wall；Outside tube wall, described
Lance head is connected by water pipe.
Described one-level ejector pump and the bottom of three grades of ejector pump pumps are equipped with drain valve and corresponding drain pipe
Road.
In order to realize the goal of the invention identical with technique scheme, present invention also offers above-described steaming
The cleaning method of vapour ejector pump cleaning device for inner wall, described cleaning plant includes two threephase asynchronouses,
Wherein one standby；
When cleaning the pump housing, described cleaning method operating procedure is:
1, a spray system motor, the drain valve of one-level ejector pump, the drain valve of three grades of ejector pumpes are opened；
2, opening purge valve under purge valve in one-level, one-level, first order jet nozzle valve, scavenging period is more than 3min,
Close All purge valve；
3, opening purge valve under purge valve on two stage pump, two stage pump, three grades of nozzle group valves, scavenging period is more than 3min,
Purge valve is closed in addition to three grades of nozzle group valves；
4, opening three grades of upper purge valve, three grades of lower purge valves, scavenging period is more than 3min, Close All purge valve；
5, close motor, after water emptying, close drain valve；
Inner-walls of duct is carried out by the work interval at vacuum pump；Every day, clearing times was not less than 3 times.
The present invention uses technique scheme, at the scene in the case of limited location, it is provided that cleaning steam injection
Pump inwall dust stratification cleaning plant, solves the difficulty of prior art；Control each according to electromagnetic valve switch to clean
Point starts cleaning showers, automatic hydraulic giant water horning tube wall, had both alleviated labor strength, and in turn ensure that
The vacuum effectiveness of molten steel；Can ensure that being positioned at the nozzle below the pump housing is not plugged up；The pump housing is arranged below draining
Pipe, can get rid of the filthy water after cleaning showers.
Accompanying drawing explanation
Content shown in accompanying drawing and the labelling in figure are as follows:
Fig. 1 is the schematic diagram of steam jet pump；
Fig. 2 is the cleaning showers point schematic diagram of steam jet pump；
Fig. 3 is each cleaning showers point water pipe rifle head scattergram.
Wherein:
1, primary pump mixing chamber, 2, one two stage pump connecting bend, 3, two stage pump mixing chamber, 4,23 grades
Pump connecting bend, 5, triplex mixing chamber, 6, triplex condenser connecting bend, 7, ladle, 8, true
Slack tank, 9, steam vent, 10, ejector pump, 11, vacuum pipe, 12, lance head, 13, water pipe.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the detailed description of the invention of the present invention is made further
Detailed description, to help those skilled in the art to have completeer to inventive concept, the technical scheme of the present invention
Whole, accurate and deep understanding.
Structure as shown in Figure 2 and Figure 3, for the cleaning plant of the steam jet pump inwall dust stratification of the present invention, institute
The ejector pump 10 stated is located in molten steel vacuum treatment installation, and described molten steel vacuum treatment installation passes through vacuum tube
Road 11 is connected with the steam vent of vacuum tank 8；Described ejector pump 10 is by vacuum exhaust direction, including one-level
Ejector pump, two-stage injection pump and three grades of ejector pumpes.
Ladle 7 is located in vacuum tank 8.
Apparatus of the present invention just solve the problem that prior art exists, automatic hydraulic giant water horning tube wall, both subtract
Light labor strength, in turn ensure that the vacuum effectiveness of molten steel.
Described spray system is driven by two threephase asynchronouses.Rating of machine model is
Y160M1-2, rated speed is 2930r/min；Rated power is 11kw.Wherein one standby.
In order to solve the problem of prior art existence and overcome its defect, it is achieved the purpose of the present invention, taked
Technical scheme be:
As in figure 2 it is shown, the steam jet pump cleaning device for inner wall of the present invention, described molten steel application of vacuum dress
The pipeline put is provided with cleaning spray structure.
Described cleaning showers structure is respectively primary pump mixing chamber 1, two stage pump connecting bend 2, two grades
Pump mixing chamber 3, two triplex connecting bend 4, triplex mixing chamber 5, triplex condenser connecting bend 6
Cleaning showers point is set.The technical scheme is that one-level, the mixing chamber of two grades, three grades ejector pumpes and spray
Mouth is mounted on spray system.
The structure of each described cleaning showers point is: uniform three at the cross section of described vacuum pipe 11
Lance head 12, the perforate from the tube wall of vacuum pipe 11 of described lance head 12 is inserted in tube wall；At tube wall
Outward, described lance head 12 is connected by water pipe 13.
Each spray position, with uniform three the water pipe lance heads 12 of vacuum pipe cross section, is tube wall perforate and inserts
Oral siphon rifle head, the rifle draught animals is down.See Fig. 3.For avoiding clearing up dust mud blocking vacuum pump steam jet,
Set up water pipe at nozzle afterbody, during cleaning, nozzle penstock is opened, pass to current in nozzle, it is to avoid mud
Dust enters spray nozzle clogging nozzle, has drainage pipeline bottom one-level and triplex.
Described one-level ejector pump and the bottom of three grades of ejector pump pumps are equipped with drain valve and corresponding drain pipe
Road.
One-level, two grades, on three grades of steam jet pump bodies, be cleaning showers point as shown in Figure 2, the most always
Pipe through water pump lay water pipe to each cleaning showers point, according to cleaning showers point water pipe rifle each shown in Fig. 3
Head is distributed in perforate on steam jet pump, connecting water pipe, and osseotomy site carries out sealing, installs spray in the pump housing
Mouth, each cleaning showers point water pipe is respectively mounted electromagnetic valve and controls water flow switch.
Steam pipework perforate connecting water pipe below one-level, three grades of steam jets, is controlled current by electromagnetic valve
Switch.
Connect drain pipe in one-level, three grades of steam jet pump body bottom opening, electromagnetic valve control switch.
1, each pump is installed two and is cleaned point, and the position cleaning point is the mixing chamber at steam jet pump respectively
And and next stage pump connect elbow, it is ensured that vacuum pipe cleaning effect；
2, steam jet water route is set, during cleaning, opens nozzle penstock, it is ensured that the nozzle being located below will not
Blocked by silt；
3, each point that cleans uses annular conduit wrapped vacuum pipeline, uniform three hydraulic giants spray on vacuum pipe
Mouth, cleaning effect is good.
The vacuum pump inwall dust stratification cleaning plant of the present invention lays respectively at mixing chamber and the next stage of three grades of vacuum pumps
At steam jet pump connecting bend, can be separately turned on closing.Each cleaning is controlled according to controlling electromagnetic valve switch
Point starts cleaning showers.Steam jet pump nozzle is provided with water pipe and connects, and during cleaning showers pipeline, opens water route,
Can ensure that being positioned at the nozzle below the pump housing is not plugged up, the pump housing is arranged below drain pipe, can get rid of spray clear
Filthy water after washing.
In order to realize the goal of the invention identical with technique scheme, present invention also offers above-described steaming
The cleaning method of vapour ejector pump cleaning device for inner wall, described cleaning plant includes two threephase asynchronouses,
Wherein one standby；
When cleaning the pump housing, described cleaning method operating procedure is:
1, a spray system motor, the drain valve of one-level ejector pump, the drain valve of three grades of ejector pumpes are opened；
2, opening purge valve under purge valve in one-level, one-level, first order jet nozzle valve, scavenging period is more than 3min,
Close All purge valve；
3, opening purge valve under purge valve on two stage pump, two stage pump, three grades of nozzle group valves, scavenging period is more than 3min,
Purge valve is closed in addition to three grades of nozzle group valves；
4, opening three grades of upper purge valve, three grades of lower purge valves, scavenging period is more than 3min, Close All purge valve；
5, close motor, after water emptying, close drain valve；
Requiring that inner-walls of duct is carried out by the work interval at vacuum pump, every day, clearing times was not less than 3 times.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by upper
State the restriction of mode, if the various unsubstantialities that the method design that have employed the present invention is carried out with technical scheme
Improvement, or the most improved design by the present invention and technical scheme directly apply to other occasion, all exists
Within protection scope of the present invention.
Claims (1)
1. a cleaning method for steam jet pump cleaning device for inner wall, described ejector pump (10) is located in molten steel vacuum treatment installation, and described molten steel vacuum treatment installation is connected with the steam vent of vacuum tank (8) by vacuum pipe (11)；Described ejector pump (10) presses vacuum exhaust direction, including one-level ejector pump, two-stage injection pump and three grades of ejector pumpes；
The pipeline of described molten steel vacuum treatment installation is provided with cleaning spray structure；
Described cleaning spray structure is to arrange cleaning showers point at primary pump mixing chamber (1), a two stage pump connecting bend (2), two stage pump mixing chamber (3), two triplex connecting bends (4), triplex mixing chamber (5), triplex condenser connecting bend (6) respectively；
The structure of each described cleaning showers point is: uniform three lance heads (12) of cross section at described vacuum pipe (11), and described lance head (12) is in from the tube wall of vacuum pipe (11), tube wall is inserted in perforate；Outside tube wall, described lance head (12) is connected by water pipe (13)；
Described one-level ejector pump and the bottom of three grades of ejector pump pumps are equipped with drain valve and corresponding drainage pipeline；
Described cleaning plant includes two threephase asynchronouses, wherein one standby；
It is characterized in that:
When cleaning the pump housing, described cleaning method operating procedure is:
1) a spray system motor, the drain valve of one-level ejector pump, the drain valve of three grades of ejector pumpes, are opened；
2), opening purge valve under purge valve in one-level, one-level, first order jet nozzle valve, scavenging period is more than 3min, Close All purge valve；
3), opening purge valve under purge valve on two stage pump, two stage pump, three grades of nozzle group valves, scavenging period is more than 3min, closes purge valve in addition to three grades of nozzle group valves；
4), opening three grades of upper purge valve, three grades of lower purge valves, scavenging period is more than 3min, Close All purge valve；
5), close motor, after water emptying, close drain valve；
Inner-walls of duct is carried out by the work interval at vacuum pump；Every day, clearing times was not less than 3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505525.0A CN104324918B (en) | 2014-09-27 | 2014-09-27 | A kind of cleaning method of steam jet pump cleaning device for inner wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505525.0A CN104324918B (en) | 2014-09-27 | 2014-09-27 | A kind of cleaning method of steam jet pump cleaning device for inner wall |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104324918A CN104324918A (en) | 2015-02-04 |
| CN104324918B true CN104324918B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410505525.0A Active CN104324918B (en) | 2014-09-27 | 2014-09-27 | A kind of cleaning method of steam jet pump cleaning device for inner wall |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106964592B (en) * | 2017-03-29 | 2019-08-02 | 辽宁福鞍重工股份有限公司 | A kind of VOD/VD furnace vacuum pump cleaning method |
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|---|---|---|---|---|
| SU1749639A1 (en) * | 1990-05-31 | 1992-07-23 | А.В.Коос и А.А.Черников | Dust-gas cleaner |
| SU1763380A1 (en) * | 1990-11-05 | 1992-09-23 | Научно-Производственная Кооперативная Фирма "Импульс" | Equipment for liquid disinfection |
| CN101984263A (en) * | 2010-10-13 | 2011-03-09 | 常州丰盛光电科技股份有限公司 | Continuous cleaning device for vacuum pump and method thereof |
| CN102094109A (en) * | 2010-12-12 | 2011-06-15 | 中国重型机械研究院有限公司 | Design method for automatic high-pressure water cleaning device |
| CN201949953U (en) * | 2011-02-28 | 2011-08-31 | 中国石油化工集团公司 | High-efficiency energy-saving nozzle and steam injection pump with nozzle |
| CN103124512A (en) * | 2010-09-14 | 2013-05-29 | 帕斯奎尔·卡塔尔法莫 | Pneumatic vacuum cleaner |
| CN203540970U (en) * | 2013-07-22 | 2014-04-16 | 杭州杭真真空工程技术有限公司 | Online vacuum pump cleaning device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005019272A (en) * | 2003-06-27 | 2005-01-20 | Shin Kobe Electric Mach Co Ltd | Cleaning method and cleaning device of safety valve chest of control valve type lead-acid battery |
| DE102009043133B4 (en) * | 2009-09-23 | 2012-08-09 | Roth & Rau Ag | Device and method for cleaning a pump chamber of a vacuum pump |
-
2014
- 2014-09-27 CN CN201410505525.0A patent/CN104324918B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1749639A1 (en) * | 1990-05-31 | 1992-07-23 | А.В.Коос и А.А.Черников | Dust-gas cleaner |
| SU1763380A1 (en) * | 1990-11-05 | 1992-09-23 | Научно-Производственная Кооперативная Фирма "Импульс" | Equipment for liquid disinfection |
| CN103124512A (en) * | 2010-09-14 | 2013-05-29 | 帕斯奎尔·卡塔尔法莫 | Pneumatic vacuum cleaner |
| CN101984263A (en) * | 2010-10-13 | 2011-03-09 | 常州丰盛光电科技股份有限公司 | Continuous cleaning device for vacuum pump and method thereof |
| CN102094109A (en) * | 2010-12-12 | 2011-06-15 | 中国重型机械研究院有限公司 | Design method for automatic high-pressure water cleaning device |
| CN201949953U (en) * | 2011-02-28 | 2011-08-31 | 中国石油化工集团公司 | High-efficiency energy-saving nozzle and steam injection pump with nozzle |
| CN203540970U (en) * | 2013-07-22 | 2014-04-16 | 杭州杭真真空工程技术有限公司 | Online vacuum pump cleaning device |
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| CN104324918A (en) | 2015-02-04 |
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