CN104438242A - Gas pipeline maintaining system - Google Patents
Gas pipeline maintaining system Download PDFInfo
- Publication number
- CN104438242A CN104438242A CN201410457918.9A CN201410457918A CN104438242A CN 104438242 A CN104438242 A CN 104438242A CN 201410457918 A CN201410457918 A CN 201410457918A CN 104438242 A CN104438242 A CN 104438242A
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- Prior art keywords
- pipeline
- magnetic valve
- valve
- connecting pipe
- communicated
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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
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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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a gas pipeline maintaining system. The system mainly comprises a cleanser pipeline, a high-pressure nitrogen pipeline and a drainage pipeline which are communicated with a first pressure pipe to be cleaned and a second pressure pipe to be cleaned. When a gas pipeline is maintained, the cleanser is conveyed to the first pressure pipe and the second pressure pipe through the cleanser pipeline, the cleaner is fully reacted with blockage materials, the blockage materials are diluted, and the viscosity of the blockage materials is reduced. Then, high-pressure nitrogen is conveyed into the first pressure pipe and the second pressure pipe through the high-pressure nitrogen pipeline, sweeping is carried out on the first pressure pipe and the second pressure pipe, and the residual blockage materials and the cleanser are discharged to a detected gas or drainage pipeline. When the pipeline is swept, the pipeline to be swept does not need to be dismounted, and therefore gas leakage cannot occur, and hurt to field maintainers and the damage to the environment cannot be caused.
Description
Technical field
The present invention relates to gas dosing field, relate to a kind of gas piping maintenance system in particular.
Background technology
When measuring tested gas, due to the complicated component of tested gas (as coke-stove gas), include the compositions such as dust, greasy dirt, steam, thus connecting pipe is easily caused to block, especially one-shot measurement element is hold susceptible to plugging place most to the connecting pipe at a valve place, and how eliminating the material blocked in connecting pipe becomes the problem that those skilled in the art need solution badly.
At present, the connecting pipe that field maintenance person removes blocking is usually cleared up, although this method is effective, but the gas revealed is easily to attendant and environmental pollution, especially, when containing toxic gas in tested gas, there is huge potential safety hazard to field maintenance person and environment in the gas of leakage.
Summary of the invention
In view of this, the present invention openly provides a kind of gas piping maintenance system, to clear up connecting pipe under the state of safety.
For achieving the above object, the invention provides following technical scheme:
A kind of gas piping maintenance system, comprising:
Cleaning agent pipeline, described cleaning agent pipeline is used for the cleaning agent to the first connecting pipe and the second connecting pipe conveying dilution blocking material;
High pressure nitrogen pipeline, described high pressure nitrogen pipeline is used for exporting high pressure nitrogen to described first connecting pipe and described second connecting pipe;
The drain line be communicated with described second connecting pipe with described first connecting pipe;
And the control valve be arranged on described cleaning agent pipeline and described high pressure nitrogen pipeline.
Preferably, described cleaning agent pipeline comprises: the first pipeline be communicated with the first connecting pipe, and the second pipeline be communicated with the second connecting pipe;
Described high pressure nitrogen pipeline comprises: the 3rd pipeline be communicated with the first connecting pipe, and the 4th pipeline be communicated with described second connecting pipe;
Described control valve comprises: be arranged on the magnetic valve S1 on described first pipeline, is arranged on the magnetic valve S2 on described second pipeline, is arranged on the magnetic valve S3 on described 3rd pipeline, and is arranged on the magnetic valve S4 on described 4th pipeline.
Preferably, described control valve also comprises:
The hand-operated valve M1 in parallel with described magnetic valve S1, the hand-operated valve M2 in parallel with described magnetic valve S2, the hand-operated valve M3 in parallel with described magnetic valve S3, and manually the M4 in parallel with described magnetic valve S4.
Preferably, described cleaning agent pipeline also comprises the 5th pipeline be all communicated with described first pipeline and described second pipeline;
Described high pressure nitrogen pipeline also comprises the 6th pipeline be all communicated with described 4th pipeline with described 3rd pipeline;
Described 5th pipeline is provided with check valve D1, described 6th pipeline is provided with check valve D2.
Preferably, described first pipeline, described first connecting pipe are communicated with by triple valve N1 with described 3rd pipeline;
Described second pipeline, described second connecting pipe are communicated with by triple valve N2 with described 4th pipeline.
Preferably, described drain line is communicated with described first connecting pipe by magnetic valve S5, is communicated with described second connecting pipe by magnetic valve S6.
Preferably, described magnetic valve S5 and described magnetic valve S6 is two-position three way magnetic valve;
An outlet of described magnetic valve S5 is communicated with described drain line, and another outlet is communicated with the positive pressure side of differential pressure transmitter by magnetic valve S7;
An outlet of described magnetic valve S6 is communicated with described drain line, and another outlet is communicated with the negative pressure end of differential pressure transmitter by magnetic valve S8.
Preferably, described first connecting pipe is provided with ball valve Q1 and ball valve Q3, described second connecting pipe is provided with ball valve Q2 and Q4;
Described ball valve Q1 and described ball valve Q2 is positioned at described triple valve N1 both sides;
Described ball valve Q2 and described ball valve Q4 is positioned at described triple valve N2 both sides.
Preferably, also comprise: the control unit controlling described magnetic valve S1, magnetic valve S2, magnetic valve S3, magnetic valve S4, magnetic valve S5, magnetic valve S6, magnetic valve S7 and magnetic valve S8 break-make.
Preferably, described magnetic valve S1, magnetic valve S2 magnetic valve S3, magnetic valve S4 are normally off;
Described magnetic valve S5 is normally off with the outlet being connected described drain line in described magnetic valve S6, and another outlet is normally open;
Described magnetic valve S7 and described magnetic valve S8 is normally open.
Through as shown from the above technical solution, the invention discloses a kind of gas piping maintenance system.This system mainly comprises the cleaning agent pipeline, high pressure nitrogen pipeline and the drain line that are communicated with the second connecting pipe with the first connecting pipe to be cleaned.When safeguarding gas piping, first carry cleaning agent by cleaning agent pipeline to the first connecting pipe and the second connecting pipe, cleaning agent is reacted fully with blocking material, dilution blocking material, the viscosity of reduction blocking material.And then, by high pressure nitrogen pipeline to the first connecting pipe and the second connecting pipe input high pressure nitrogen, to purge the first connecting pipe and the second connecting pipe, the blocking material of remnants and cleaning agent are discharged by drain line.When native system cleans pipeline, without the need to dismantling pipeline to be cleaned, thus can not produce gas leakage, also can not work the mischief to field maintenance person and environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 shows the structural representation of an embodiment of a kind of gas piping maintenance system of the present invention;
Fig. 2 shows the structural representation of another embodiment of a kind of gas piping maintenance system of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
When measuring tested gas, tested gas flow can produce malleation when measuring cell in the first connecting pipe, produces negative pressure in the second connecting pipe.And then, export the corresponding signal of telecommunication with the differential pressure transmitter that the second connecting pipe is communicated with according to the size of the first connecting pipe and the second connecting pipe air pressure inside to the first connecting pipe, for processor, gas to be measured is measured.
In actual metered process, due to the complicated component of gas to be measured, thus easily block the first connecting pipe and the second connecting pipe, the invention discloses a kind of gas piping maintenance system for this reason, to clean the first connecting pipe and the second connecting pipe
Embodiment one
The structural representation of an embodiment of a kind of gas piping maintenance system of the present invention is shown see Fig. 1.
As shown in Figure 1, this system mainly comprises:
The cleaning agent pipeline 1 be communicated with the second connecting pipe 3 with the first connecting pipe 2, the high pressure nitrogen pipeline 4 be communicated with the second connecting pipe 3 with the first connecting pipe 2, and the drain line 5 be communicated with the second connecting pipe 3 with the first connecting pipe 2.Wherein, cleaning agent pipeline 1 and high pressure nitrogen pipeline 4 are provided with control valve 6.
When pipeline attendant needs to safeguard the first connecting pipe 2 and the second connecting pipe 3, open the control valve 6 be arranged on cleaning agent pipeline 1, cleaning agent is delivered in the first connecting pipe 2 and the second connecting pipe 3.To be cleaned dose fully react with the blocking material being blocked in the first connecting pipe 2 and the second connecting pipe 3 inside after, close the control valve 6 be arranged on cleaning agent pipeline 1, open the control valve 6 be arranged on high pressure nitrogen pipeline 4, high pressure nitrogen is delivered in the first connecting pipe 2 and the second connecting pipe 3 by high pressure nitrogen pipeline 4, to purge the first connecting pipe 2 and the second connecting pipe 3 under the effect of high pressure nitrogen, the blocking material of remnants and cleaning agent are then discharged or are entered by drain line 5 in tested gas.
From embodiment one, this system without the need to removing the first connecting pipe and the second connecting pipe, avoids the leakage of tested gas in the cleaning process to the first connecting pipe and the second connecting pipe, thus can not work the mischief to attendant and surrounding environment.
Embodiment two
The structural representation of another embodiment of a kind of gas piping maintenance system of the present invention is shown see Fig. 2.With a upper embodiment unlike, in the present embodiment, this gas piping maintenance system can realize automatic cleaning to the first connecting pipe and the second connecting pipe and manually cleaning.
From 2, in the present embodiment, cleaning agent pipeline comprises: the first pipeline 1-1 be communicated with the first connecting pipe 2, and the second pipeline 1-2 be communicated with the second connecting pipe 3;
High pressure nitrogen pipeline comprises: the 3rd pipeline 4-1 be communicated with the first connecting pipe 2, and the 4th pipeline 4-2 be communicated with the second connecting pipe 2.
In order to realize automatic control and the Non-follow control of this system, in the present embodiment, the first pipeline 1-1 is provided with magnetic valve S1 and hand-operated valve M1, wherein, magnetic valve S1 and hand-operated valve M1 is in parallel.Second pipeline 1-2 is provided with magnetic valve S2, the hand-operated valve M2 in parallel with magnetic valve S2; 3rd pipeline 4-1 is provided with magnetic valve S3, the hand-operated valve M3 in parallel with magnetic valve S3; 4th pipeline 4-2 is provided with magnetic valve S4, the hand-operated valve M4 in parallel with magnetic valve S4.
When carrying out automatic operation to this system, close hand-operated valve M1, M2, M3 and M4.Automatic control unit is according to the program preset opens solenoid valve S1 and S2 simultaneously, shut electromagnetic valve S3 and S4, system is made to enter cleaning mode, namely by the first pipeline 1-1 and the second pipeline 1-2, cleaning agent is delivered in the first connecting pipe 2 and the second connecting pipe 3, cleaning agent is reacted fully with blocking material, dilution blocking material, reduces the viscosity of blocking material.The fully rear automatic control unit of question response is according to the program preset shut electromagnetic valve S1 and S2 simultaneously, and opens solenoid valve S3 and S4 simultaneously, system enters purge mode, is namely inputed in the first connecting pipe 2 and the second connecting pipe 3 by high pressure nitrogen by the 3rd pipeline 4-1 and the 4th pipeline 4-2.
As shown in Figure 2, in the present embodiment, the first pipeline 1-1, the 3rd pipeline 4-1 are communicated with by triple valve N1 with the first connecting pipe 2; Second pipeline 1-2, the 4th pipeline 4-2 and the second connecting pipe 3 are undertaken being communicated with (adopting four triple valves altogether in the present embodiment) by triple valve N2 equally.High pressure nitrogen is divided into two-way to purge the first connecting pipe 2 and the second connecting pipe 3, the junction of one tunnel to the first connecting pipe 2 and the second connecting pipe 3 and gas main line purges, and the cleaning agent remained in the first connecting pipe 2 and the second connecting pipe 3 and tamper are discharged into the position of specifying by another road by drain line 5.
It should be noted that, in order to avoid the backflow of the materials such as tested gas, cleaning agent or high pressure nitrogen, in the present embodiment, cleaning agent pipeline also comprises the 5th pipeline 1-3 be all communicated with the first pipeline 1-1 and the second pipeline 1-2; High pressure nitrogen pipeline also comprises the 6th pipeline 4-3 be all communicated with described 3rd pipeline 4-1 and the 4th pipeline 4-2.Wherein, the 5th pipeline 1-3 is provided with check valve D1, the 6th pipeline 4-3 is provided with check valve D2, check valve D1 and check valve D2 only allows cleaning agent and high pressure nitrogen one-way flow, thus avoids the backflow of cleaning agent and high pressure nitrogen.
Embodiment three
When reality is measured tested gas; first connecting pipe 2 is connected with the positive pressure side of differential pressure transmitter 6; second connecting pipe 3 is connected with the negative pressure end of differential pressure transmitter 6; in order to avoid cleaning agent or blocking material flow in differential pressure transmitter 6 in pipeline maintenance process; damage is caused to differential pressure transmitter 6, is provided with magnetic valve S7 in the present embodiment and magnetic valve S8 protects differential pressure transmitter 6.
First connecting pipe 2 is disposed with ball valve Q1, ball valve Q3, magnetic valve S5 and magnetic valve S7 in the present embodiment, the second connecting pipe 3 is disposed with ball valve Q2, ball valve Q4, magnetic valve S6 and magnetic valve S8.
Wherein, ball valve Q1 and ball valve Q3 is positioned at the both sides of triple valve N1, and ball valve Q2 and ball valve Q4 is positioned at the both sides of triple valve N2.
Magnetic valve S5 and magnetic valve S6 is two-position three way magnetic valve, and an outlet of magnetic valve S5 is communicated with drain line 5, and another outlet is communicated with the positive pressure side of differential pressure transmitter by magnetic valve S7;
An outlet of magnetic valve S6 is communicated with drain line 5, and another outlet is communicated with the negative pressure end of differential pressure transmitter by magnetic valve S8.
In the present embodiment, under normal condition, (i.e. magnetic valve must not electricity condition under) magnetic valve S1, S2, S3, S4 is closure state, one end of magnetic valve S5, S6 connected electromagnetic valve S7 and S8 is conducting state, other end connected drainage pipeline 5 is closure state, S7, S8 conducting state, hand-operated valve M1, M2, M3, M4 are closed condition, and ball valve Q1, Q2, Q3, Q4 are conducting state.
Its operation principle is:
When this system is in cleaning mode, automatic control unit Controlling solenoid valve S1, S2, S7 and S8 simultaneously electric, magnetic valve S1 and S2 is in conducting state, magnetic valve S7 and S8 is in closure state, cleaning agent enters the first connecting pipe 2 and the second connecting pipe 3 along the first pipeline 1-1 and the second pipeline 1-2, react with the blocking material sticked on the first connecting pipe 2 and the second connecting pipe 3, dilute and reduce its viscosity.
In this section of control procedure, if it is T1 that magnetic valve S7 and S8 obtains the electric time, it is T2 that magnetic valve S1 and S2 obtains the electric time, and the length of its time can be arranged voluntarily according to actual conditions.
After automatic control unit runs the T2 time, system enters purge mode.Magnetic valve S1 and S2 be dead electricity simultaneously, is in closure state, and cleaning agent pipeline is cut off.After setting time delay t1, magnetic valve S3, S4, S5 and S6 simultaneously electric, magnetic valve S3 and S4 is in conducting state, and high pressure nitrogen enters in the first connecting pipe 2 and the second connecting pipe 3 along the 3rd pipeline 4-1 and the 4th pipeline 4-2; Two outlet conductings be communicated with drain line 5 in exporting of magnetic valve S5 with S6 simultaneously, the outlet be connected with magnetic valve S7 and S8 closes.High pressure nitrogen one tunnel purges through ball valve Q1 and Q2, and another road, through ball valve Q3 and Q4, is discharged into assigned address the cleaning agent remained in the first connecting pipe 2 and the second connecting pipe 3 by the drain line of magnetic valve S5 and S6.
In this section of control procedure, if it is T3 that magnetic valve S3, S4 obtain the electric time, magnetic valve S5, S6 the electric time be that the time requirement of T4, T3 is greater than T4, ensure like this after magnetic valve S5, S6 dead electricity, high pressure nitrogen can continue to continue to purge to the pressure pipe at ball valve Q1 and Q2 place again.
After program operation reaches T3, magnetic valve S3, S4 be dead electricity simultaneously, and high pressure nitrogen pipeline is cut off, and after time delay t2, magnetic valve S7, S8 dead electricity, whole first connecting pipe 2 and the second connecting pipe 3 conducting, differential pressure transmitter starts to measure tested gas.It should be noted that, the object of time delay t2 is to prevent the high pressure nitrogen be retained in connecting pipe from producing impact to transmitter.
From above content, magnetic valve S7, S8 obtain electric time T1, are the time that this device puts into operation, that is: T1=T2+t1+T3+t2.
It should be noted that, when solenoid valve failure, operating personnel carry out manual operation by control ball valve and hand-operated valve.Close ball valve Q3, Q4, cut off impulse piping, ensure transmitter safety, open hand-operated valve M1, M2, cleaning agent enters connecting pipe along pipeline, reacts with the blocking material sticked on connecting pipe tube wall, dilutes and reduces its viscosity, after cleaning agent effect completes, close M1, M2, open M3, M4 high pressure nitrogen and pipeline is purged, after having purged, can M3, M4 be closed, wait a moment and open ball valve Q3, Q4, the maintenance work under this pattern completes.
After maintenance work completes, the metering to tested gas opened by differential pressure transmitter and corresponding processor, and its detailed process is as follows:
Setting the number of times opened this system every day is R, so every day this system cloud gray model total time T be: T is total=R × T1.
Because in the process of this system cloud gray model, the differential pressure value of transmitter display is 0, and the flow value that program computation goes out at this stage is also 0, supposes that all chronomeres are all second,
Every day=24 hours/day × 60 points/hour × second/point=86400 seconds
So the effective run time of transmitter every day is:
T effectively=86400 seconds-T are total
Suppose that the cumulant of measuring is that Q is actual, after optimizing, volume cumulant is that Q optimizes, so,
Q optimization=Q reality/T effectively × 86400 seconds
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, article or the equipment comprising described key element and also there is other identical element.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the application.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from the spirit or scope of the application, can realize in other embodiments.Therefore, the application can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a gas piping maintenance system, is characterized in that, comprising:
Cleaning agent pipeline, described cleaning agent pipeline is used for the cleaning agent to the first connecting pipe and the second connecting pipe conveying dilution blocking material;
High pressure nitrogen pipeline, described high pressure nitrogen pipeline is used for exporting high pressure nitrogen to described first connecting pipe and described second connecting pipe;
The drain line be communicated with described second connecting pipe with described first connecting pipe;
And the control valve be arranged on described cleaning agent pipeline and described high pressure nitrogen pipeline.
2. system according to claim 1, is characterized in that, described cleaning agent pipeline comprises: the first pipeline be communicated with the first connecting pipe, and the second pipeline be communicated with the second connecting pipe;
Described high pressure nitrogen pipeline comprises: the 3rd pipeline be communicated with the first connecting pipe, and the 4th pipeline be communicated with described second connecting pipe;
Described control valve comprises: be arranged on the magnetic valve S1 on described first pipeline, is arranged on the magnetic valve S2 on described second pipeline, is arranged on the magnetic valve S3 on described 3rd pipeline, and is arranged on the magnetic valve S4 on described 4th pipeline.
3. system according to claim 2, is characterized in that, described control valve also comprises:
The hand-operated valve M1 in parallel with described magnetic valve S1, the hand-operated valve M2 in parallel with described magnetic valve S2, the hand-operated valve M3 in parallel with described magnetic valve S3, and manually the M4 in parallel with described magnetic valve S4.
4. system according to claim 2, is characterized in that, described cleaning agent pipeline also comprises the 5th pipeline be all communicated with described first pipeline and described second pipeline;
Described high pressure nitrogen pipeline also comprises the 6th pipeline be all communicated with described 4th pipeline with described 3rd pipeline;
Described 5th pipeline is provided with check valve D1, described 6th pipeline is provided with check valve D2.
5. system according to claim 2, is characterized in that, described first pipeline, described first connecting pipe are communicated with by triple valve N1 with described 3rd pipeline;
Described second pipeline, described second connecting pipe are communicated with by triple valve N2 with described 4th pipeline.
6. system according to claim 2, is characterized in that, described drain line is communicated with described first connecting pipe by magnetic valve S5, is communicated with described second connecting pipe by magnetic valve S6.
7. require the system described in 6 according to power, it is characterized in that, described magnetic valve S5 and described magnetic valve S6 is two-position three way magnetic valve;
An outlet of described magnetic valve S5 is communicated with described drain line, and another outlet is communicated with the positive pressure side of differential pressure transmitter by magnetic valve S7;
An outlet of described magnetic valve S6 is communicated with described drain line, and another outlet is communicated with the negative pressure end of differential pressure transmitter by magnetic valve S8.
8. system according to claim 5, is characterized in that, described first connecting pipe is provided with ball valve Q1 and ball valve Q3, and described second connecting pipe is provided with ball valve Q2 and Q4;
Described ball valve Q1 and described ball valve Q3 is positioned at described triple valve N1 both sides;
Described ball valve Q2 and described ball valve Q4 is positioned at described triple valve N2 both sides.
9. system according to claim 7, is characterized in that, also comprises: the automatic control unit controlling described magnetic valve S1, magnetic valve S2, magnetic valve S3, magnetic valve S4, magnetic valve S5, magnetic valve S6, magnetic valve S7 and magnetic valve S8 break-make.
10. system according to claim 9, is characterized in that, described magnetic valve S1, magnetic valve S2 magnetic valve S3, magnetic valve S4 are normally off;
Described magnetic valve S5 is normally off with the outlet being connected described drain line in described magnetic valve S6, and another outlet is normally open;
Described magnetic valve S7 and described magnetic valve S8 is normally open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457918.9A CN104438242B (en) | 2014-09-09 | 2014-09-09 | A kind of gas piping safeguards system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410457918.9A CN104438242B (en) | 2014-09-09 | 2014-09-09 | A kind of gas piping safeguards system |
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| Publication Number | Publication Date |
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| CN104438242A true CN104438242A (en) | 2015-03-25 |
| CN104438242B CN104438242B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410457918.9A Active CN104438242B (en) | 2014-09-09 | 2014-09-09 | A kind of gas piping safeguards system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104913201A (en) * | 2015-04-29 | 2015-09-16 | 北京航天发射技术研究所 | Pressure reducer air supply loop adopting redundant design and control method |
| CN107830305A (en) * | 2017-11-07 | 2018-03-23 | 成都易态科技有限公司 | Pressure system |
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| KR20130102878A (en) * | 2012-03-08 | 2013-09-23 | 전북에너지서비스주식회사 | Device for cleaning in gas pipe |
| CN103776581A (en) * | 2012-10-24 | 2014-05-07 | 建业庆松集团有限公司 | Flue gas pressure measuring blocking prevention device |
| CN104014565A (en) * | 2014-06-18 | 2014-09-03 | 东方电气集团东方电机有限公司 | Method for cleaning pipe of evaporative cooling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201561772U (en) * | 2009-12-11 | 2010-08-25 | 冯磊 | Self-cleaning type gas flow device |
| CN102059233A (en) * | 2010-12-21 | 2011-05-18 | 上海神开石油化工装备股份有限公司 | Automatic cleaning device for viscosity meter |
| KR20130102878A (en) * | 2012-03-08 | 2013-09-23 | 전북에너지서비스주식회사 | Device for cleaning in gas pipe |
| CN103776581A (en) * | 2012-10-24 | 2014-05-07 | 建业庆松集团有限公司 | Flue gas pressure measuring blocking prevention device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913201A (en) * | 2015-04-29 | 2015-09-16 | 北京航天发射技术研究所 | Pressure reducer air supply loop adopting redundant design and control method |
| CN107830305A (en) * | 2017-11-07 | 2018-03-23 | 成都易态科技有限公司 | Pressure system |
| CN107830305B (en) * | 2017-11-07 | 2024-04-02 | 成都易态科技有限公司 | Pressure taking system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104438242B (en) | 2016-09-07 |
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