CN110159832A - The method for diagnosing faults and its method for maintaining of rotating exhaust valve - Google Patents
The method for diagnosing faults and its method for maintaining of rotating exhaust valve Download PDFInfo
- Publication number
- CN110159832A CN110159832A CN201910405339.2A CN201910405339A CN110159832A CN 110159832 A CN110159832 A CN 110159832A CN 201910405339 A CN201910405339 A CN 201910405339A CN 110159832 A CN110159832 A CN 110159832A
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- China
- Prior art keywords
- exhaust valve
- rotating exhaust
- valve
- ball valve
- rotating
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/18—Charging particulate material using a fluid carrier
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention discloses a kind of method for diagnosing faults of rotating exhaust valve and its method for maintaining, which includes: opening time and the shut-in time for observing and recording rotating exhaust valve.Opening time and shut-in time are compared with standard value, if it is different, determining rotating exhaust valve failure.The method for maintaining includes: to install the first ball valve additional in the connecting pipe of rotating exhaust valve and locking tank.The connection emptying channel on locking tank, is vented on channel and is provided with the second ball valve.The first ball valve is closed, and closes the pneumatic source of rotating exhaust valve, rotating exhaust valve is repaired.In maintenance process, coal dust is loaded into locking tank by the second ball valve of opening and closing.The method for diagnosing faults and its method for maintaining of rotating exhaust valve of the invention, more can easily judge rotating exhaust valve whether failure, convenient for timely and accurately diagnosing fault phenomenon, blast furnace blowing operation is not stopped work in maintenance process, guarantees production efficiency and operation continuity.
Description
Technical field
The present invention relates to pulverized coal injection tank pressure relief equipment technical field more particularly to a kind of fault diagnosises of rotating exhaust valve
Method and its method for maintaining.
Background technique
In blast furnace process, coke production technique is replaced using coal injection mode.Pulverized coal injection into blast furna powder system includes: upper circle
Overhead-valve, locking tank, rotating exhaust valve, lower dome valve, injection tank and balanced valve.Upper dome valve is located at the top of locking-valve, lower circle
Overhead-valve be located at locking tank and injection tank between, the both ends of balanced valve respectively with locking tank and injection tank connect, rotating exhaust valve and
It is latched the side wall connection of tank, is opened when being latched and being fed in tank.Rotation exhaust when coal dust in locking tank is downwardly into injection tank
Valve is closed.
Related rotating exhaust valve mainly includes valve deck and valve seat, and valve deck is connected to the free end of spiral arm, and spiral arm is in gas
It is rotated under cylinder driving, when turning to valve seat and valve deck close contact, rotating exhaust valve is closed.Valve deck and valve when air pressure disappears
Seat releases contact, and rotating exhaust valve is opened.It is respectively arranged with casting glue-line on valve deck and valve seat, plays buffering and sealing function.But
In the rotating exhaust valve course of work, valve deck frequent impact valve seat under the drive of spiral arm, casting glue-line can crack after frequent impact
Or be detached from, cause poorly sealed.After rotating exhaust valve failure, the normal operation of pulverized coal injection into blast furna powder system is influenced, therefore, having must
The method for diagnosing faults and its method for maintaining of a kind of rotating exhaust valve are provided.
Summary of the invention
To solve above-mentioned the technical problems existing in the prior art, the present invention provides a kind of failures of rotating exhaust valve to examine
Disconnected method and its method for maintaining.Specific technical solution is as follows:
In a first aspect, providing a kind of method for diagnosing faults of rotating exhaust valve, which comprises
Observe and record opening time and the shut-in time of rotating exhaust valve；
The opening time and the shut-in time are compared with standard value, if it is different, determining the rotation exhaust
Valve failure.
In a kind of possible design, the standard value is 0.5s.
In a kind of possible design, when the rotating exhaust valve occurs glue-line abrasion, cracking or is detached from, the rotary rowed
The opening time of air valve and shut-in time are 0.4s.
Second aspect, the embodiment of the invention provides a kind of method for maintaining of rotating exhaust valve, which comprises
The first ball valve is installed additional in the connecting pipe of rotating exhaust valve and locking tank；
Connection is vented channel on the locking tank, is provided with the second ball valve on the emptying channel；
The first ball valve is closed, and closes the pneumatic source of the rotating exhaust valve, the rotating exhaust valve is repaired；
In maintenance process, coal dust is loaded into the locking tank by opening and closing second ball valve.
In a kind of possible design, the method also includes: after maintenance, second ball valve is closed, opens institute
The first ball valve is stated, the pneumatic source of the rotating exhaust valve is opened, the pressurising into the locking tank detects the rotating exhaust valve
Leakproofness.
In a kind of possible design, first ball valve is DN150 manual ball valve.
In a kind of possible design, second ball valve is that DN50 controls ball valve.
The major advantage of technical solution of the present invention is as follows:
The method for diagnosing faults and its method for maintaining of rotating exhaust valve of the invention, by observing and recording rotating exhaust valve
Opening time and the shut-in time and compared with standard value, more can easily judge rotating exhaust valve whether failure,
Convenient for timely and accurately diagnosing fault phenomenon.By installing the first ball valve and the second ball valve additional, the first ball valve by rotating exhaust valve with
Locking tank isolation is opened, and maintenance process not will receive the interference of locking can-like state, and the second ball valve substitution rotating exhaust valve plays pressure
Adjustment effect, blast furnace blowing operation is not stopped work in maintenance process, guarantees production efficiency and operation continuity.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes of the invention one
Point, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, does not constitute improper limitations of the present invention.Attached
In figure:
Fig. 1 is the method for diagnosing faults flow chart of rotating exhaust valve provided by one embodiment of the present invention；
Fig. 2 is the method for maintaining flow chart of rotating exhaust valve provided by one embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the specific embodiment of the invention and
Technical solution of the present invention is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only of the invention
A part of the embodiment, instead of all the embodiments.Based on the embodiment of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Below in conjunction with attached drawing, the technical solution of embodiment that the present invention will be described in detail offer.
In a first aspect, the embodiment of the invention provides a kind of method for diagnosing faults of rotating exhaust valve, as shown in Fig. 1,
This method comprises:
Observe and record opening time and the shut-in time of rotating exhaust valve.
Opening time and shut-in time are compared with standard value, if it is different, determining rotating exhaust valve failure.
In use, valve deck is rotated rotating exhaust valve under the drive of spiral arm, and spiral arm is driven by air pressure, control
When unit issues opening and closing instruction, the rotation of pneumatic cylinder action drives spiral arm controls the opening and closing of rotating exhaust valve.Rotation exhaust
When valve normal use, each opening time and shut-in time are consistent, as standard value.When it breaks down, when opening
Between generate deviation between shut-in time meeting and standard value.When by the opening time and the closing that observe and record rotating exhaust valve
Between, it more can easily judge whether rotating exhaust valve breaks down.
As it can be seen that the method for diagnosing faults of rotating exhaust valve provided in an embodiment of the present invention, by observing and recording rotary rowed
The opening time of air valve and shut-in time simultaneously compare with standard value, more can easily judge whether rotating exhaust valve is former
Barrier avoids the normal operation for influencing pulverized coal injection into blast furna powder system convenient for timely and accurately diagnosing fault phenomenon.
In a specific embodiment, the standard value of rotating exhaust valve opening time and shut-in time are 0.5s.When beating
ETAD expected time of arrival and departure and shut-in time are different from standard value, either fast or partially slow, can determine that rotating exhaust valve not normal
Working condition determines that rotating exhaust valve breaks down.
Relatively conventional and universal phenomenon of the failure is glue-line abrasion, cracks or fall off rotating exhaust valve in use
When, the leakproofness of rotating exhaust valve is deteriorated, and pressure release is accelerated, and the opening time of rotating exhaust valve and shut-in time are 0.4s.Pass through
Opening time and the shut-in time for observing and recording rotating exhaust valve not only can be determined that rotating exhaust valve breaks down, and logical
Fault type can be determined by crossing the time numerical value.
Second aspect, the embodiment of the invention provides a kind of method for maintaining of rotating exhaust valve, as shown in Fig. 2, the party
Method includes:
The first ball valve is installed additional in the connecting pipe of rotating exhaust valve and locking tank.
The connection emptying channel on locking tank, is vented on channel and is provided with the second ball valve.
The first ball valve is closed, and closes the pneumatic source of rotating exhaust valve, rotating exhaust valve is repaired.Pulverized coal injection into blast furna
In powder system, the opening and closing of rotating exhaust valve and the operating of pneumatic source are controlled the regulation of unit, when practical operation, staff
Filling is issued in master control room to forbid instructing, and can close the pneumatic source of rotating exhaust valve.Further, rotating exhaust valve is mobile
It is easy to repair to open position.
In maintenance process, coal dust is loaded into locking tank by the second ball valve of opening and closing.
As it can be seen that the method for maintaining of rotating exhaust valve provided in an embodiment of the present invention, by installing the first ball valve and the second ball additional
Valve, the first ball valve open rotating exhaust valve and locking tank isolation, and maintenance process not will receive the interference of locking can-like state, the second ball
Valve substitution rotating exhaust valve play pressure adjustment effect, blast furnace blowing operation is not stopped work in maintenance process, guarantee production efficiency and
Operation continuity.
Further, the method for maintaining of rotating exhaust valve provided in an embodiment of the present invention further include: after maintenance, close
Second ball valve opens the first ball valve, opens the pneumatic source of rotating exhaust valve, and the pressurising into locking tank detects rotating exhaust valve
Leakproofness.After maintenance, before rotating exhaust valve normally comes into operation, ensures to have repaired by aforesaid operations and finish.
After maintenance, staff issues filling sign in master control room, and pulverized coal injection into blast furna powder system enters automatic
It is blown program.
Specifically, when pressurising, tank will be latched and be pressurized to the maximum pressure worked normally under state, to simulate rotating exhaust valve
Working environment guarantees detection reliability.Wherein it is possible to be pressurized to 0.5MPa.
Wherein, the first ball valve can be DN150 manual ball valve, convenient for opening and closing manually.
Second ball valve can control ball valve for DN50, and the second ball valve can connect with control unit, make in maintenance process, the
Two ball valves open and close under the instruction of control unit.
It should be noted that, in this document, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to
Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting
Standby intrinsic element.In addition, placement shape of "front", "rear", "left", "right", "upper", the "lower" herein to be indicated in attached drawing
State is reference.
Finally, it should be noted that the above examples are only used to illustrate the technical scheme of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (7)
1. a kind of method for diagnosing faults of rotating exhaust valve, which is characterized in that the described method includes:
Observe and record opening time and the shut-in time of rotating exhaust valve；
The opening time and the shut-in time are compared with standard value, if it is different, determining the rotating exhaust valve event
Barrier.
2. the method for diagnosing faults of rotating exhaust valve according to claim 1, which is characterized in that the standard value is
0.5s。
3. the method for diagnosing faults of rotating exhaust valve according to claim 1 or 2, which is characterized in that the rotation exhaust
When valve occurs glue-line abrasion, cracking or is detached from, the opening time of the rotating exhaust valve and shut-in time are 0.4s.
4. a kind of method for maintaining of rotating exhaust valve, which is characterized in that the described method includes:
The first ball valve is installed additional in the connecting pipe of rotating exhaust valve and locking tank；
Connection is vented channel on the locking tank, is provided with the second ball valve on the emptying channel；
The first ball valve is closed, and closes the pneumatic source of the rotating exhaust valve, the rotating exhaust valve is repaired；
In maintenance process, coal dust is loaded into the locking tank by opening and closing second ball valve.
5. the method for maintaining of rotating exhaust valve according to claim 4, which is characterized in that the method also includes:
After maintenance, second ball valve is closed, first ball valve is opened, opens the pneumatic source of the rotating exhaust valve,
The pressurising into the locking tank, detects the leakproofness of the rotating exhaust valve.
6. the method for maintaining of rotating exhaust valve according to claim 4, which is characterized in that first ball valve is DN150
Manual ball valve.
7. the method for maintaining of rotating exhaust valve according to claim 4, which is characterized in that second ball valve is DN50 control
Ball valve processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405339.2A CN110159832A (en) | 2019-05-16 | 2019-05-16 | The method for diagnosing faults and its method for maintaining of rotating exhaust valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405339.2A CN110159832A (en) | 2019-05-16 | 2019-05-16 | The method for diagnosing faults and its method for maintaining of rotating exhaust valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110159832A true CN110159832A (en) | 2019-08-23 |
Family
ID=67634868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910405339.2A Pending CN110159832A (en) | 2019-05-16 | 2019-05-16 | The method for diagnosing faults and its method for maintaining of rotating exhaust valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159832A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441612A (en) * | 2016-01-15 | 2016-03-30 | 山东钢铁股份有限公司 | Blast furnace granular coal injection coal conveying device |
| CN106870209A (en) * | 2013-10-14 | 2017-06-20 | 大陆汽车系统公司 | Locking tank bleeder valve |
-
2019
- 2019-05-16 CN CN201910405339.2A patent/CN110159832A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870209A (en) * | 2013-10-14 | 2017-06-20 | 大陆汽车系统公司 | Locking tank bleeder valve |
| CN105441612A (en) * | 2016-01-15 | 2016-03-30 | 山东钢铁股份有限公司 | Blast furnace granular coal injection coal conveying device |
Non-Patent Citations (1)
| Title |
|---|
| 张守旗: "提高粒煤喷吹设备可靠性的适应性改造", 《设备管理与维修》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190823 |
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| RJ01 | Rejection of invention patent application after publication |