CN106052477A - One-key washing method of copious cooling heat exchanger in membrane method denitration device - Google Patents
One-key washing method of copious cooling heat exchanger in membrane method denitration device Download PDFInfo
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- CN106052477A CN106052477A CN201610398681.0A CN201610398681A CN106052477A CN 106052477 A CN106052477 A CN 106052477A CN 201610398681 A CN201610398681 A CN 201610398681A CN 106052477 A CN106052477 A CN 106052477A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to the technical field of washing methods of copious cooling heat exchangers in membrane method denitration devices and discloses a one-key washing method of a copious cooling heat exchanger in a membrane method denitration device. The one-key washing method is executed according to the following step that firstly, an instruction sending module sends an instruction to a distributed control system. According to the one-key washing method of the copious cooling heat exchanger in the membrane method denitration device, the washing operation of the copious cooling heat exchanger in the membrane method denitration device can automatically run, a pneumatic valve is adopted to replace an original manual valve, manual starting and stopping of the valve are not needed, and washing of the copious cooling heat exchanger in the membrane method denitration device is convenient; besides, an operator does not need to start or stop a circulating pump and a washing water pump; on one hand, the workload of the operator is reduced; on the other hand, the problem of the state in which the valve is turned on or off mistakenly is solved; and besides, the situation that saline water enters a washing water system, washing water enters a saline water system, and the copious cooling heat exchanger is blocked is avoided, and smooth running of the membrane method denitration device is guaranteed.
Description
Technical field
The present invention relates to embrane method and remove the purging method technical field of the deep-cooling heat exchanger in nitre device, be that a kind of embrane method is except nitre
The method that one key of the deep-cooling heat exchanger in device rinses.
Background technology
Chlorine industry embrane method except in nitre device the import and export of deep-cooling heat exchanger connect altogether and have 6 pipelines, respectively saline enters
Outlet line, cold medium inlet/outlet pipeline, flushing water inlet/outlet pipeline, when being rinsed deep-cooling heat exchanger, need 6
The hand-operated valve of pipeline respectively switchs once, and needs by each to circulating pump and flush water pump start and stop once, the workload of operator
Relatively big, and the number of times of valve switch, pump start and stop is more, and there is the problem of mistake controlled valve state in operator, causes
Saline enters flushing water system, flushing water enters the situation such as brine system, deep-cooling heat exchanger blocking and happens occasionally, for embrane method except nitre
The operation of device adversely affects.
Summary of the invention
The invention provides a kind of method that embrane method is rinsed except a key of the deep-cooling heat exchanger in nitre device, overcome above-mentioned
The deficiency of prior art, it can effectively solve existing embrane method and remove the purging method existence needs of deep-cooling heat exchanger in nitre device manually
The problem of controlled valve.
The technical scheme is that and realized by following measures: a kind of embrane method is except the deep-cooling heat exchanger in nitre device
One key rinse method, carry out in the steps below: the first step, instruction sending module to Distributed Control System send instruction, collection
After dissipating control system reception instruction, Distributed Control System sends to cold medium back flow pneumatic operated valve and opens cold medium back flow pneumatic operated valve
Signal, after cold medium back flow pneumatic operated valve is opened, cold medium is in the first pipeline, deep-cooling heat exchanger, second pipe and cold medium back flow
Pipe carries out cold medium circulation, wherein, opens cold medium back flow in Distributed Control System to the transmission of cold medium back flow pneumatic operated valve pneumatic
Before the signal of valve, cold medium entrance pneumatic operated valve, brine inlet pneumatic operated valve, brine outlet pneumatic operated valve and circulating pump are in unlatching shape
State, now, cold medium enters deep-cooling heat exchanger by entering cold medium tube and the first pipeline, and saline is managed the 4th by circulating pump
Road, deep-cooling heat exchanger, the 3rd pipeline and settler are circulated, flush water pump, flushing water import pneumatic operated valve and flushing water outlet
Pneumatic operated valve is closed；Second step, Distributed Control System sends to cold medium entrance pneumatic operated valve and closes cold medium entrance gas
The signal of dynamic valve, cold medium can not enter in deep-cooling heat exchanger by entering cold medium tube and the first pipeline；3rd step, collecting and distributing control
System to circulating pump send stop circulating pump signal, after circulating pump termination of pumping, saline stop at the 4th pipeline, deep-cooling heat exchanger,
3rd pipeline and settler circulation；4th step, it is pneumatic that Distributed Control System sends closedown brine inlet to brine inlet pneumatic operated valve
The signal of valve, Distributed Control System sends the signal closing brine outlet pneumatic operated valve to brine outlet pneumatic operated valve；5th step, collecting and distributing
Control system sends the signal opening flushing water import pneumatic operated valve to flushing water import pneumatic operated valve, and Distributed Control System is to flushing water
Outlet pneumatic operated valve sends the signal opening flushing water outlet pneumatic operated valve；6th step, Distributed Control System sends to flush water pump and opens
Open the signal of flush water pump, after flush water pump is opened, flushing water sequentially through wash tub pipe, the 3rd pipeline, deep-cooling heat exchanger, the
Four pipelines and flushing return pipe, be rinsed deep-cooling heat exchanger；7th step, Distributed Control System sends to flush water pump and stops
The signal of flush water pump, flush water pump termination of pumping；8th step, Distributed Control System sends to close to flushing water import pneumatic operated valve and rinses
The signal of water inlet pneumatic operated valve, Distributed Control System sends the letter closing flushing water outlet pneumatic operated valve to flushing water outlet pneumatic operated valve
Number, flushing water stops rinsing deep-cooling heat exchanger；9th step, Distributed Control System sends to brine inlet pneumatic operated valve and opens saline
The signal of import pneumatic operated valve, Distributed Control System sends the signal opening brine outlet pneumatic operated valve to brine outlet pneumatic operated valve；The
Ten steps, Distributed Control System sends the signal starting circulating pump to circulating pump, and after circulating pump starts, saline is at the 4th pipeline, deep
Cold heat exchanger, the 3rd pipeline and settler are circulated；11st step, Distributed Control System sends to cold medium entrance pneumatic operated valve
Opening the signal of cold medium entrance pneumatic operated valve, Distributed Control System sends to cold medium back flow pneumatic operated valve and opens cold medium back flow gas
The signal of dynamic valve, after cold medium entrance pneumatic operated valve and cold medium back flow pneumatic operated valve are opened, cold medium is in the first pipeline, deep cooling heat exchange
Device, second pipe and cold medium back flow pipe carry out cold medium circulation；12nd step, Distributed Control System is pneumatic to cold medium back flow
Valve sends the signal cutting out cold medium back flow pneumatic operated valve, and cold medium back flow pneumatic operated valve cuts out, and completes deep except in nitre device of embrane method
The flushing of cold heat exchanger.
Further optimization and/or improvements to foregoing invention technical scheme are presented herein below:
Above-mentioned instruction sending module is mouse or keyboard.
The signal output part of above-mentioned instruction sending module electrically connects with the signal input part of Distributed Control System.
Above-mentioned Distributed Control System is pneumatic with cold medium back flow pneumatic operated valve, cold medium entrance pneumatic operated valve, brine inlet respectively
Valve, brine outlet pneumatic operated valve, circulating pump, flush water pump, flushing water import pneumatic operated valve and flushing water outlet pneumatic operated valve electrical connection.
The above-mentioned first step is 10 seconds to 15 seconds with the time interval of second step；Or/and, between the time of second step and the 3rd step
It is divided into 10 seconds to 15 seconds；Or/and, the 3rd step is 30 seconds to 40 seconds with the time interval of the 4th step；Or/and, the 4th step and the 5th
The time interval of step is 10 seconds to 15 seconds；Or/and, the 5th step is 10 seconds to 15 seconds with the time interval of the 6th step；Or/and, the
Six steps are 12 minutes to 13 minutes with the time interval of the 7th step；Or/and, the time interval of the 7th step and the 8th step be 10 seconds extremely
15 seconds；Or/and, the 8th step is 10 seconds to 15 seconds with the time interval of the 9th step；Or/and, between the time of the 9th step and the tenth step
It is divided into 30 seconds to 40 seconds；Or/and, the tenth step is 30 seconds to 40 seconds with the time interval of the 11st step；Or/and, the 11st step with
The time interval of the 12nd step is 30 seconds to 40 seconds.
The method that embrane method of the present invention is rinsed except a key of the deep-cooling heat exchanger in nitre device can run film automatically
Method, except the flushing operation of the deep-cooling heat exchanger in nitre device, uses pneumatic operated valve to replace original hand-operated valve, it is not necessary to manual start and stop valve
Door, it is simple to embrane method removes the flushing of the deep-cooling heat exchanger in nitre device, and without operator's start and stop circulating pump and flush water pump,
On the one hand, the workload of operator is decreased, on the other hand, it is to avoid the problem that wrong controlled valve state occurs, it addition, keep away
Exempt from occur that saline enters flushing water system, flushing water enters brine system and the situation of deep-cooling heat exchanger blocking, it is ensured that embrane method is removed
The trouble-free operation of nitre device.
Accompanying drawing explanation
Accompanying drawing 1 is the process chart of the present invention.
Accompanying drawing 2 is the control principle drawing of the present invention.
Accompanying drawing 3 is the process flow diagram of the present invention.
It is cold medium back flow pneumatic operated valve that coding in accompanying drawing is respectively as follows: 1, and 2 is the first pipeline, and 3 is deep-cooling heat exchanger, and 4 are
Second pipe, 5 is cold medium back flow pipe, and 6 is cold medium entrance pneumatic operated valve, and 7 is brine inlet pneumatic operated valve, and 8 is brine outlet gas
Dynamic valve, 9 is circulating pump, and 10 for entering cold medium tube, and 11 is the 4th pipeline, and 12 is the 3rd pipeline, and 13 is settler, and 14 is flushing water
Pump, 15 is flushing water import pneumatic operated valve, and 16 export pneumatic operated valve for flushing water, and 17 is wash tub pipe, and 18 for rinsing return pipe.
Detailed description of the invention
The present invention is not limited by following embodiment, can determine specifically according to technical scheme and practical situation
Embodiment.
In the present invention, for the ease of describing, the description of the relative position relation of each parts is all according to Figure of description 1
Butut mode be described, such as: the position relationship of forward and backward, upper and lower, left and right etc. is based on the Butut of Figure of description
Direction determines.
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1: as shown in accompanying drawing 1 to 3, the method that this embrane method is rinsed except a key of the deep-cooling heat exchanger in nitre device, press
Stating step to carry out: the first step, instruction sending module sends instruction to Distributed Control System, after Distributed Control System receives instruction,
Distributed Control System sends the signal opening cold medium back flow pneumatic operated valve 1 to cold medium back flow pneumatic operated valve 1, and cold medium back flow is pneumatic
After valve 1 is opened, cold medium carries out cold medium at the first pipeline 2, deep-cooling heat exchanger 3, second pipe 4 and cold medium back flow pipe 5 and follows
Ring, wherein, in Distributed Control System before the signal of cold medium back flow pneumatic operated valve 1 is opened in the transmission of cold medium back flow pneumatic operated valve 1,
Cold medium entrance pneumatic operated valve 6, brine inlet pneumatic operated valve 7, brine outlet pneumatic operated valve 8 and circulating pump 9 are in opening, now,
Cold medium enters deep-cooling heat exchanger 3 by entering cold medium tube 10 and the first pipeline 2, saline by circulating pump 9 the 4th pipeline 11,
Deep-cooling heat exchanger the 3, the 3rd pipeline 12 and settler 13 are circulated, flush water pump 14, flushing water import pneumatic operated valve 15 and flushing
Water out pneumatic operated valve 16 is closed；Second step, Distributed Control System sends to cold medium entrance pneumatic operated valve 6 and closes cold Jie
The signal of matter import pneumatic operated valve 6, cold medium can not enter in deep-cooling heat exchanger 3 by entering cold medium tube 10 and the first pipeline 2；The
Three steps, Distributed Control System sends the signal stopping circulating pump 9 to circulating pump 9, and after circulating pump 9 termination of pumping, saline stops at the 4th
Pipeline 11, deep-cooling heat exchanger the 3, the 3rd pipeline 12 and settler 13 circulate；4th step, Distributed Control System is pneumatic to brine inlet
Valve 7 sends the signal cutting out brine inlet pneumatic operated valve 7, and Distributed Control System sends closedown saline to brine outlet pneumatic operated valve 8 and goes out
The signal of mouth pneumatic operated valve 8；5th step, it is pneumatic that Distributed Control System opens flushing water import to the transmission of flushing water import pneumatic operated valve 15
The signal of valve 15, Distributed Control System sends the signal opening flushing water outlet pneumatic operated valve 16 to flushing water outlet pneumatic operated valve 16；
6th step, Distributed Control System sends the signal opening flush water pump 14 to flush water pump 14, after flush water pump 14 is opened, rinses
Deep cooling sequentially through wash tub pipe the 17, the 3rd pipeline 12, deep-cooling heat exchanger the 3, the 4th pipeline 11 and flushing return pipe 18, is changed by water
Hot device 3 is rinsed；7th step, Distributed Control System sends the signal stopping flush water pump 14, flushing water to flush water pump 14
Pump 14 termination of pumping；8th step, Distributed Control System sends to flushing water import pneumatic operated valve 15 and closes flushing water import pneumatic operated valve 15
Signal, Distributed Control System sends the signal closing flushing water outlet pneumatic operated valve 16, flushing water to flushing water outlet pneumatic operated valve 16
Stop deep-cooling heat exchanger 3 is rinsed；9th step, Distributed Control System sends to brine inlet pneumatic operated valve 7 and opens brine inlet gas
The signal of dynamic valve 7, Distributed Control System sends the signal opening brine outlet pneumatic operated valve 8 to brine outlet pneumatic operated valve 8；Tenth
Step, Distributed Control System to circulating pump 9 send start circulating pump 9 signal, circulating pump 9 start after, saline the 4th pipeline 11,
Deep-cooling heat exchanger the 3, the 3rd pipeline 12 and settler 13 are circulated；11st step, Distributed Control System is to cold medium entrance gas
Dynamic valve 6 sends the signal opening cold medium entrance pneumatic operated valve 6, and Distributed Control System sends to cold medium back flow pneumatic operated valve 1 and opens
After the signal of cold medium back flow pneumatic operated valve 1, cold medium entrance pneumatic operated valve 6 and cold medium back flow pneumatic operated valve 1 are opened, cold medium is
One pipeline 2, deep-cooling heat exchanger 3, second pipe 4 and cold medium back flow pipe 5 carry out cold medium circulation；12nd step, collecting and distributing control
System sends the signal closing cold medium back flow pneumatic operated valve 1 to cold medium back flow pneumatic operated valve 1, and cold medium back flow pneumatic operated valve 1 cuts out,
Complete embrane method except the flushing of the deep-cooling heat exchanger 3 in nitre device.Pneumatic operated valve, instruction sending module, Distributed Control System (DCS) are equal
For existing known technology.Embrane method described in the present embodiment can except the method that a key of the deep-cooling heat exchanger 3 in nitre device rinses
Automatically embrane method is run except the flushing operation of the deep-cooling heat exchanger 3 in nitre device, the employing pneumatic operated valve original hand-operated valve of replacement, it is not necessary to
Manual start and stop valve, it is simple to embrane method removes the flushing of the deep-cooling heat exchanger 3 in nitre device, and without operator's start and stop circulating pump
9 and flush water pump 14, on the one hand, decrease the workload of operator, on the other hand, it is to avoid mistake controlled valve state occurs
Problem, it addition, avoid the occurrence of saline enter flushing water system, flushing water enter brine system and deep-cooling heat exchanger 3 blocking
Situation, it is ensured that embrane method is except the trouble-free operation of nitre device.The left end of second pipe 4 exports and enters cold medium tube 10 and can form Guan Bi
Loop.
Embodiment 2: as the optimization of above-described embodiment, instruction sending module is mouse or keyboard.Instruction sending module is
The arranging of mouse or keyboard is easy to embrane method further and is quickly carried out except the flushing operation of the deep-cooling heat exchanger 3 in nitre device.
Embodiment 3: as in figure 2 it is shown, as the optimization of above-described embodiment, the signal output part of instruction sending module is with collecting and distributing
The signal input part electrical connection of control system.
Embodiment 4: as in figure 2 it is shown, as the optimization of above-described embodiment, Distributed Control System respectively with cold medium back flow gas
Dynamic valve 1, cold medium entrance pneumatic operated valve 6, brine inlet pneumatic operated valve 7, brine outlet pneumatic operated valve 8, circulating pump 9, flush water pump 14, punching
Wash water import pneumatic operated valve 15 and flushing water outlet pneumatic operated valve 16 electrically connect.
Embodiment 5: as the optimization of above-described embodiment, the first step is 10 seconds to 15 seconds with the time interval of second step；Or/
With, the time interval of second step and the 3rd step is 10 seconds to 15 seconds；Or/and, the 3rd step is 30 seconds with the time interval of the 4th step
To 40 seconds；Or/and, the 4th step is 10 seconds to 15 seconds with the time interval of the 5th step；Or/and, the 5th step and the time of the 6th step
It is spaced apart 10 seconds to 15 seconds；Or/and, the 6th step is 12 minutes to 13 minutes with the time interval of the 7th step；Or/and, the 7th step
It it is 10 seconds to 15 seconds with the time interval of the 8th step；Or/and, the 8th step is 10 seconds to 15 seconds with the time interval of the 9th step；Or/
With, the 9th step is 30 seconds to 40 seconds with the time interval of the tenth step；Or/and, the tenth step is 30 with the time interval of the 11st step
Second was to 40 seconds；Or/and, the 11st step is 30 seconds to 40 seconds with the time interval of the 12nd step.
In sum, embrane method of the present invention can be certainly except the method that a key of the deep-cooling heat exchanger in nitre device rinses
Dynamic embrane method of running, except the flushing operation of the deep-cooling heat exchanger in nitre device, uses pneumatic operated valve to replace original hand-operated valve, it is not necessary to hands
Dynamic start and stop valve, it is simple to embrane method except the flushing of the deep-cooling heat exchanger in nitre device, and without operator's start and stop circulating pump and
Flush water pump, on the one hand, decrease the workload of operator, on the other hand, it is to avoid asking of mistake controlled valve state occurs
Topic, it addition, avoid the occurrence of, saline enters flushing water system, flushing water enters brine system and the situation of deep-cooling heat exchanger blocking,
Ensure that embrane method is except the trouble-free operation of nitre device.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
It is actually needed the non-essential technical characteristic of increase and decrease, meets the demand of different situations.
Claims (9)
1. the method that an embrane method is rinsed except a key of the deep-cooling heat exchanger in nitre device, it is characterised in that enter in the steps below
OK: the first step, instruction sending module sends instruction to Distributed Control System, after Distributed Control System receives instruction, and collecting and distributing control
System sends the signal opening cold medium back flow pneumatic operated valve to cold medium back flow pneumatic operated valve, after cold medium back flow pneumatic operated valve is opened,
Cold medium carries out cold medium circulation at the first pipeline, deep-cooling heat exchanger, second pipe and cold medium back flow pipe, wherein, collecting and distributing
Before control system sends the signal opening cold medium back flow pneumatic operated valve to cold medium back flow pneumatic operated valve, cold medium entrance is pneumatic
Valve, brine inlet pneumatic operated valve, brine outlet pneumatic operated valve and circulating pump are in opening, and now, cold medium is by entering cold medium
Pipe and the first pipeline enter deep-cooling heat exchanger, and saline passes through circulating pump in the 4th pipeline, deep-cooling heat exchanger, the 3rd pipeline and sedimentation
Device is circulated, and flush water pump, flushing water import pneumatic operated valve and flushing water outlet pneumatic operated valve are closed；Second step, collection
Dissipating control system and send the signal closing cold medium entrance pneumatic operated valve to cold medium entrance pneumatic operated valve, cold medium can not be cold by entering
Medium tube and the first pipeline enter in deep-cooling heat exchanger；3rd step, Distributed Control System sends to circulating pump and stops circulating pump
Signal, after circulating pump termination of pumping, saline stops at the 4th pipeline, deep-cooling heat exchanger, the 3rd pipeline and settler circulation；4th step,
Distributed Control System sends the signal closing brine inlet pneumatic operated valve to brine inlet pneumatic operated valve, and Distributed Control System goes out to saline
Mouth pneumatic operated valve sends the signal cutting out brine outlet pneumatic operated valve；5th step, Distributed Control System is sent out to flushing water import pneumatic operated valve
Sending the signal opening flushing water import pneumatic operated valve, Distributed Control System sends to flushing water outlet pneumatic operated valve and opens flushing water outlet
The signal of pneumatic operated valve；6th step, Distributed Control System sends the signal opening flush water pump to flush water pump, and flush water pump is opened
After, flushing water is sequentially through wash tub pipe, the 3rd pipeline, deep-cooling heat exchanger, the 4th pipeline and flushing return pipe, to deep cooling heat exchange
Device is rinsed；7th step, Distributed Control System sends the signal stopping flush water pump, flush water pump termination of pumping to flush water pump；
8th step, Distributed Control System sends the signal closing flushing water import pneumatic operated valve, collecting and distributing control to flushing water import pneumatic operated valve
System sends the signal closing flushing water outlet pneumatic operated valve to flushing water outlet pneumatic operated valve, and flushing water stops rushing deep-cooling heat exchanger
Wash；9th step, Distributed Control System sends the signal opening brine inlet pneumatic operated valve, collecting and distributing control system to brine inlet pneumatic operated valve
Unite and send the signal opening brine outlet pneumatic operated valve to brine outlet pneumatic operated valve；Tenth step, Distributed Control System is sent out to circulating pump
Sending the signal starting circulating pump, after circulating pump starts, saline enters at the 4th pipeline, deep-cooling heat exchanger, the 3rd pipeline and settler
Row circulation；11st step, Distributed Control System sends the signal opening cold medium entrance pneumatic operated valve to cold medium entrance pneumatic operated valve,
Distributed Control System sends the signal opening cold medium back flow pneumatic operated valve, cold medium entrance pneumatic operated valve to cold medium back flow pneumatic operated valve
After opening with cold medium back flow pneumatic operated valve, cold medium enters at the first pipeline, deep-cooling heat exchanger, second pipe and cold medium back flow pipe
The cold medium circulation of row；12nd step, Distributed Control System sends to cold medium back flow pneumatic operated valve and closes cold medium back flow pneumatic operated valve
Signal, cold medium back flow pneumatic operated valve cuts out, and completes embrane method except the flushing of the deep-cooling heat exchanger in nitre device.
The method that embrane method the most according to claim 1 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature exists
It is mouse or keyboard in instruction sending module.
The method that embrane method the most according to claim 1 and 2 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature
It is that the signal output part of instruction sending module electrically connects with the signal input part of Distributed Control System.
The method that embrane method the most according to claim 1 and 2 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature
It is that Distributed Control System goes out with cold medium back flow pneumatic operated valve, cold medium entrance pneumatic operated valve, brine inlet pneumatic operated valve, saline respectively
Mouth pneumatic operated valve, circulating pump, flush water pump, flushing water import pneumatic operated valve and flushing water outlet pneumatic operated valve electrical connection.
The method that embrane method the most according to claim 3 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature exists
In Distributed Control System respectively with cold medium back flow pneumatic operated valve, cold medium entrance pneumatic operated valve, brine inlet pneumatic operated valve, brine outlet
Pneumatic operated valve, circulating pump, flush water pump, flushing water import pneumatic operated valve and flushing water outlet pneumatic operated valve electrical connection.
The method that embrane method the most according to claim 1 and 2 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature
It is that the first step is 10 seconds to 15 seconds with the time interval of second step；Or/and, the time interval of second step and the 3rd step is 10 seconds
To 15 seconds；Or/and, the 3rd step is 30 seconds to 40 seconds with the time interval of the 4th step；Or/and, the 4th step and the time of the 5th step
It is spaced apart 10 seconds to 15 seconds；Or/and, the 5th step is 10 seconds to 15 seconds with the time interval of the 6th step；Or/and, the 6th step and the
The time interval of seven steps is 12 minutes to 13 minutes；Or/and, the 7th step is 10 seconds to 15 seconds with the time interval of the 8th step；Or/
With, the 8th step is 10 seconds to 15 seconds with the time interval of the 9th step；Or/and, the 9th step is 30 seconds with the time interval of the tenth step
To 40 seconds；Or/and, the tenth step is 30 seconds to 40 seconds with the time interval of the 11st step；Or/and, the 11st step and the 12nd step
Time interval be 30 seconds to 40 seconds.
The method that embrane method the most according to claim 3 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature exists
Time interval in the first step Yu second step is 10 seconds to 15 seconds；Or/and, the time interval of second step and the 3rd step be 10 seconds extremely
15 seconds；Or/and, the 3rd step is 30 seconds to 40 seconds with the time interval of the 4th step；Or/and, between the time of the 4th step and the 5th step
It is divided into 10 seconds to 15 seconds；Or/and, the 5th step is 10 seconds to 15 seconds with the time interval of the 6th step；Or/and, the 6th step and the 7th
The time interval of step is 12 minutes to 13 minutes；Or/and, the 7th step is 10 seconds to 15 seconds with the time interval of the 8th step；Or/
With, the 8th step is 10 seconds to 15 seconds with the time interval of the 9th step；Or/and, the 9th step is 30 seconds with the time interval of the tenth step
To 40 seconds；Or/and, the tenth step is 30 seconds to 40 seconds with the time interval of the 11st step；Or/and, the 11st step and the 12nd step
Time interval be 30 seconds to 40 seconds.
The method that embrane method the most according to claim 4 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature exists
Time interval in the first step Yu second step is 10 seconds to 15 seconds；Or/and, the time interval of second step and the 3rd step be 10 seconds extremely
15 seconds；Or/and, the 3rd step is 30 seconds to 40 seconds with the time interval of the 4th step；Or/and, between the time of the 4th step and the 5th step
It is divided into 10 seconds to 15 seconds；Or/and, the 5th step is 10 seconds to 15 seconds with the time interval of the 6th step；Or/and, the 6th step and the 7th
The time interval of step is 12 minutes to 13 minutes；Or/and, the 7th step is 10 seconds to 15 seconds with the time interval of the 8th step；Or/
With, the 8th step is 10 seconds to 15 seconds with the time interval of the 9th step；Or/and, the 9th step is 30 seconds with the time interval of the tenth step
To 40 seconds；Or/and, the tenth step is 30 seconds to 40 seconds with the time interval of the 11st step；Or/and, the 11st step and the 12nd step
Time interval be 30 seconds to 40 seconds.
The method that embrane method the most according to claim 5 is rinsed except a key of the deep-cooling heat exchanger in nitre device, its feature exists
Time interval in the first step Yu second step is 10 seconds to 15 seconds；Or/and, the time interval of second step and the 3rd step be 10 seconds extremely
15 seconds；Or/and, the 3rd step is 30 seconds to 40 seconds with the time interval of the 4th step；Or/and, between the time of the 4th step and the 5th step
It is divided into 10 seconds to 15 seconds；Or/and, the 5th step is 10 seconds to 15 seconds with the time interval of the 6th step；Or/and, the 6th step and the 7th
The time interval of step is 12 minutes to 13 minutes；Or/and, the 7th step is 10 seconds to 15 seconds with the time interval of the 8th step；Or/
With, the 8th step is 10 seconds to 15 seconds with the time interval of the 9th step；Or/and, the 9th step is 30 seconds with the time interval of the tenth step
To 40 seconds；Or/and, the tenth step is 30 seconds to 40 seconds with the time interval of the 11st step；Or/and, the 11st step and the 12nd step
Time interval be 30 seconds to 40 seconds.
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| CN201610398681.0A CN106052477A (en) | 2016-06-07 | 2016-06-07 | One-key washing method of copious cooling heat exchanger in membrane method denitration device |
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| CN (1) | CN106052477A (en) |
Cited By (1)
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Application publication date: 20161026 |