CN206958603U - A kind of automatic compression air system - Google Patents
A kind of automatic compression air system Download PDFInfo
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- CN206958603U CN206958603U CN201720931067.6U CN201720931067U CN206958603U CN 206958603 U CN206958603 U CN 206958603U CN 201720931067 U CN201720931067 U CN 201720931067U CN 206958603 U CN206958603 U CN 206958603U
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Abstract
The utility model discloses a kind of automatic compression air system; the start, shutdown, runing adjustment of prior art compressed air system are solved all by being accomplished manually; so as to cause operation not accurate due to human factor; and then equipment can be caused to damage, and the problem of potential safety hazard be present to operating personnel.The utility model is simple in construction, design science is reasonable, it is easy to use, it can be supplied simultaneously for instrument and production technology, each equipment in compressed air system and valve are accurately controlled using PLC control system or DCS control systems, opening, stop, loading, effectively it can be protected in unloading and frequency-modulating process to participating in equipment, so as to extend service life of the present utility model, maintenance and use cost are saved, the defects of effectively overcoming prior art to waste the energy simultaneously, reach the purpose of energy-conserving and environment-protective, and it can also effectively eliminate operator's existing potential safety hazard in operation.
Description
Technical field
It the utility model is related to a kind of automatic compression air system.
Background technology
Compressed air is a kind of important power source, in the industrial production extensive application：Drive pneumatic equipment or portion
Part, inflation of blowing, material conveying, pressurization, cleaning purging etc., the compressed air that this part is directly used in production system is referred to as technique
With gas；Power is provided for the pneumatic self control valve of automatic control system, instrument, this part is referred to as instrument gas.Therefore, compression is empty
Gas system is to production run important.Because the fluctuation of production system operation can cause compressed air dosage ripple therewith
It is dynamic, and instrument is intermittently used with gas and many techniques with gas, this results in compressed air gas consumption all the time in fluctuation,
When fluctuation reaches to a certain degree, it is necessary to which compressed air system is adjusted：When gas consumption is less than gas production, compressed air
The pressure of air accumulator can increase in system, and when it exceedes the discharge pressure of its safety valve, safety valve is opened, in discharge air accumulator
Compressed air, until air accumulator pressure be less than safety valve discharge pressure.This has resulted in the waste of compressed air, also makes
Into the waste for preparing the energy that compressed air is consumed.
The above situation duration is longer, then needs the operation of stop section air compressor machine and after-treatment system to reduce aerogenesis
Amount, work is shut down at present by being accomplished manually；When gas consumption exceedes gas production, the pressure of air accumulator can reduce, and influence production system
The normal use united to compressed air, or even cause production system and pneumatic self control valve, instrument can not normal work.It is such as such a
The situation duration is longer, then needs opening section air compressor machine and after-treatment system to increase gas production, and work of starting shooting at present is by people
Work is completed.Because air compressor machine noise is big, artificial start, shuts down and the health of personnel can be had undesirable effect, be also unfavorable for personnel
Safety.For above mentioned problem existing for current compressed air system, a kind of one-key start, unattended automatic compression are researched and developed
Air system turns into skilled artisan's technical problem urgently to be resolved hurrily.
Utility model content
The technical problems to be solved in the utility model is：A kind of automatic compression air system is provided, solves prior art
The start of compressed air system, shutdown, runing adjustment are all by being accomplished manually, so as to cause operation not accurate due to human factor,
And then equipment can be caused to damage, and the problem of potential safety hazard be present to operating personnel.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of automatic compression air system, including frequency conversion air compressor, the first air compressor machine, the second air compressor machine, instrument storage
Gas tank, technique air accumulator, it is connected respectively by pipeline with the frequency conversion air compressor, the first air compressor machine and the second air compressor machine slow
Tank is rushed, the instrument gas after-treatment system being connected between the surge tank and the instrument air accumulator, is connected to described slow
The technique rushed between tank and technique air accumulator gas after-treatment system, respectively described frequency conversion air compressor, the first air compressor machine,
The cooling accessory system that two air compressor machines, instrument are cooled down with gas after-treatment system and technique with gas after-treatment system, and from
Autocontrol system；
The frequency conversion air compressor, the first air compressor machine and the second air compressor machine electrically connect with the automatic control system respectively, institute
State frequency conversion air compressor and be provided with first pressure transmitter, the supply of the instrument air accumulator with the tank connected pipeline of buffering
Pipeline is provided with the second pressure transmitter electrically connected with the automatic control system, the steam line of the technique air accumulator
It is provided with the 3rd pressure transmitter electrically connected with the automatic control system；
The instrument gas after-treatment system includes being connected between the surge tank and the instrument air accumulator
First instrument post-process branch line and second instrument gas with gas and post-process branch line, the first instrument post-processes branch line bag with gas
Include equal the first gas for electrically connecting with the automatic control system and being sequentially connected in series from the surge tank to the instrument with air accumulator
Dynamic switch valve, the first fore filter, the first freezing type drier, the first oil removal filter, the first low-grade fever absorption drier,
First accurate filter and the second pneumatic on-off valve, the second instrument gas post processing branch line include automatically controlling with described
System electrically connect and be sequentially connected in series from the surge tank to the instrument with air accumulator the 3rd pneumatic on-off valve, the second preposition mistake
Filter, the second freezing type drier, the second oil removal filter, the second low-grade fever absorption drier, the second accurate filter and
Four pneumatic on-off valves；
The technique gas after-treatment system includes being connected between the surge tank and the technique air accumulator
The first technique post-process branch line and the second technique gas with gas and post-process branch line, first technique post-processes branch line bag with gas
Include equal the 5th gas for electrically connecting with the automatic control system and being sequentially connected in series from the surge tank to the technique with air accumulator
Dynamic switch valve, the 3rd fore filter, the 3rd freezing type drier, the first dust removal filter and the 6th pneumatic on-off valve, it is described
Second technique includes electrically connecting with the automatic control system and from the surge tank to the technique with gas post processing branch line
The 7th pneumatic on-off valve, the 4th fore filter, the 4th freezing type drier, the second dust removal and filtration being sequentially connected in series with air accumulator
Device and the 8th pneumatic on-off valve；
It is described cooling accessory system respectively with the frequency conversion air compressor, the first air compressor machine, the second air compressor machine, the first freezing type
Drying machine, the second freezing type drier, the 3rd freezing type drier and the connection of the 4th freezing type drier pipeline, the cooling are auxiliary
Auxiliary system also electrically connects with the automatic control system.
Further, the cooling accessory system includes what is be connected respectively with outside cooling water equipment and outside backwater equipment
Cooling water supply pipe and CWR, the cooling water supply pipe respectively with the frequency conversion air compressor, the first air compressor machine,
Two air compressor machines, the first freezing type drier, the second freezing type drier, the 3rd freezing type drier and the 4th freezing type drier
Pipeline connects, and the CWR freezes with the frequency conversion air compressor, the first air compressor machine, the second air compressor machine, first respectively
Formula drying machine, the second freezing type drier, the 3rd freezing type drier and the connection of the 4th freezing type drier pipeline；
The pipeline that the cooling water supply pipe is connected with the frequency conversion air compressor is provided with and automatic control system electricity
Connection the 9th pneumatic on-off valve, the pipeline that the cooling water supply pipe be connected with first air compressor machine provided with it is described oneself
Tenth pneumatic on-off valve of autocontrol system electrical connection, on the pipeline that the cooling water supply pipe is connected with second air compressor machine
Provided with the 11st pneumatic on-off valve electrically connected with the automatic control system, the cooling water supply pipe and the described first freezing
The pipeline of formula drying machine connection is provided with the 12nd pneumatic on-off valve electrically connected with the automatic control system, the cooling water
The pipeline that feed pipe is connected with second freezing type drier is provided with the 13rd electrically connected with the automatic control system
Pneumatic on-off valve, the pipeline that the cooling water supply pipe is connected with the 3rd freezing type drier are provided with and the automatic control
14th pneumatic on-off valve of system electrical connection processed, the pipe that the cooling water supply pipe is connected with the 4th freezing type drier
Road is provided with the 15th pneumatic on-off valve electrically connected with the automatic control system；
The flow electrically connected with the automatic control system is sequentially provided with the cooling water supply pipe along water supply direction
Meter, pressure gauge and thermometer.
Further, the surge tank, instrument are with air accumulator and technique with being equipped with safety valve on air accumulator.
Further, the first instrument with gas post processing branch line positioned at the first low-grade fever absorption drier and
The first exhaust magnetic valve electrically connected with the automatic control system is provided between first accurate filter, described second
Instrument is provided between the second low-grade fever absorption drier and second accurate filter with gas post processing branch line
The second exhaust magnetic valve electrically connected with the automatic control system, it is located at institute with gas post processing branch line in first technique
State the 3rd exhaust for being provided between the 3rd freezing type drier and the first dust removal filter and being electrically connected with the automatic control system
Magnetic valve, it is located at the 4th freezing type drier and the second dust removal filter with gas post processing branch line in second technique
Between be provided with the 4th exhaust solenoid valve that is electrically connected with the automatic control system.
Further, the instrument is used with instrument gas supply flow meter, the technique is additionally provided with the steam line of air accumulator
Technique gas supply flow meter is additionally provided with the steam line of air accumulator.
Further, the instrument is equipped with drainpipe with air accumulator, the technique with air accumulator and the surge tank,
The drainpipe of the surge tank is provided with the first drain solenoid valve electrically connected with the automatic control system, the instrument storage
The drainpipe of gas tank is provided with the second drain solenoid valve electrically connected with the automatic control system, the technique air accumulator
Drainpipe is provided with the 3rd drain solenoid valve electrically connected with the automatic control system.
Further, first fore filter, the first oil removal filter, the first accurate filter, the second preposition mistake
Filter, the second oil removal filter, the second accurate filter, the 3rd fore filter, the first dust removal filter, the 4th prefilter
Device and the second dust removal filter are parallel with a bypass pipe with ball valve respectively.
Further, the automatic control system is PLC control system.
Further, the automatic control system is DCS control systems.
Compared with prior art, the utility model has the advantages that：
(1) the utility model is simple in construction, and design science is reasonable, easy to use, can be supplied simultaneously for instrument and production technology
Gas, can effectively realize that one-key start, unattended automation supply are horizontal, open, stop, load, unload and frequency-modulating process in
It can effectively be protected to participating in equipment, so as to extend service life of the present utility model, save maintenance and use cost,
By PLC control system or DCS control systems, it can precisely be supplied for instrument and production technology, can effectively overcome prior art
The defects of wasting the energy, reaches the purpose of energy-conserving and environment-protective, while can also effectively eliminate operator's existing peace in operation
Full hidden danger.
(2) the utility model by PLC control system or DCS control systems and operated pneumatic valve, electromagnetic valve, flowmeter,
Close fit between each equipment in pressure transmitter and pipeline, under collective effect, effectively realizing only needs a key just to start
Whole system is run and the purpose on duty without full-time staff, while the utility model need to only configure a low-voltage variable frequency pneumatics
Machine, avoid variable-frequency motor or the excessive caused harmonic problem of VFC；In addition, the utility model is using on a small quantity automatic
Valve instead of the hand-operated valve largely used in legacy system, reduce disposable input, decrease later stage manual operation and dimension
The workload of shield.Whole system is simple and safe, and application is good, and cost is low, is advantageous to the power source management of full factory, has extensive
Application prospect.
Brief description of the drawings
Fig. 1 is the block diagram of the utility model.
Wherein, it is entitled corresponding to reference：
1- frequency conversion air compressors, the air compressor machines of 2- first, the air compressor machines of 3- second, 4- first pressures transmitter, 5- the 9th are pneumatically opened
Before closing valve, the pneumatic on-off valves of 6- the tenth, the pneumatic on-off valves of 7- the 11st, 8- flowmeters, 9- second pressures transmitter, 10- first
Put filter, the freezing type driers of 11- first, the oil removal filters of 12- first, the first low-grade fevers of 13- absorption drier, 14-
One accurate filter, the fore filters of 15- second, the freezing type driers of 16- second, the oil removal filters of 17- second, 18- second
Low-grade fever absorption drier, the accurate filters of 19- second, 20- instrument air accumulator, the pneumatic on-off valves of 21- first, 22- the 3rd
Pneumatic on-off valve, the pneumatic on-off valves of 23- second, the pneumatic on-off valves of 24- the 4th, the pneumatic on-off valves of 25- the 12nd, 26- the 13rd
Pneumatic on-off valve, the pressure transmitters of 27- the 3rd, the fore filters of 28- the 3rd, the freezing type driers of 29- the 3rd, 30- first are removed
Dirt filter, the fore filters of 31- the 4th, the freezing type driers of 32- the 4th, the dust removal filters of 33- second, the storage of 34- techniques
Gas tank, the pneumatic on-off valves of 35- the 5th, the pneumatic on-off valves of 36- the 7th, the pneumatic on-off valves of 37- the 6th, the jettrons of 38- the 8th
Valve, the pneumatic on-off valves of 39- the 14th, the pneumatic on-off valves of 40- the 15th, 41- first exhausts magnetic valve, 42- second exhaust electromagnetism
Valve, the exhaust solenoid valves of 43- the 3rd, the exhaust solenoid valves of 44- the 4th, the drain solenoid valves of 45- first, the drain solenoid valves of 46- second,
The drain solenoid valves of 47- the 3rd, 48- surge tanks, 49- cooling water supply pipes, 50- CWRs.
Embodiment
The utility model is described in further detail with embodiment for explanation below in conjunction with the accompanying drawings, and mode of the present utility model includes
But it is not limited only to following examples.
As shown in figure 1, a kind of automatic compression air system provided by the utility model, the utility model is simple in construction,
Design science is reasonable, easy to use, can be supplied simultaneously for instrument and production technology, can effectively realize one-key start, unattended
Automation supply it is horizontal, open, stop, load, unload and frequency-modulating process in effectively can be protected to participating in equipment, so as to prolong
Service life of the present utility model has been grown, has saved maintenance and use cost, can by PLC control system or DCS control systems
The defects of precisely for instrument and production technology supply, can effectively overcome prior art to waste the energy, reach the mesh of energy-conserving and environment-protective
, while can also effectively eliminate operator's existing potential safety hazard in operation.The utility model includes frequency conversion air compressor
1, the first air compressor machine 2, the second air compressor machine 3, instrument air accumulator 20, technique air accumulator 34, pass through pipeline and the change respectively
The surge tank 48 of frequency air compressor machine 1, the first air compressor machine 2 and the connection of the second air compressor machine 3, is connected to the surge tank 48 and the instrument
With the gas after-treatment system of the instrument between air accumulator 20, the work being connected between the surge tank 48 and technique air accumulator 34
Skill gas after-treatment system, respectively described frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3, instrument are post-processed with gas
The cooling accessory system that system and technique are cooled down with gas after-treatment system, and automatic control system, it is described to automatically control
System is PLC control system or DCS control systems.
Frequency conversion air compressor 1, the first air compressor machine 2 and the second air compressor machine 3 described in the utility model automatically control with described respectively
System electrically connects, and the pipeline that the frequency conversion air compressor 1 is connected with the surge tank 48 is provided with first pressure transmitter 4, described
Instrument is provided with the second pressure transmitter 9 electrically connected with the automatic control system with the steam line of air accumulator 20, described
Technique is provided with the 3rd pressure transmitter 27 electrically connected with the automatic control system with the steam line of air accumulator 34.
Surge tank 48 described in the utility model, instrument are equipped with safety valve with air accumulator 20 and technique with air accumulator 34,
The instrument is provided with instrument gas supply flow meter, the steam line of technique air accumulator 34 with the steam line of air accumulator 20
Be provided with technique gas supply flow meter, instrument air accumulator 20, the technique with air accumulator 34 and the surge tank 48
Provided with drainpipe, the drainpipe of the surge tank 48 is provided with the first drain solenoid valve electrically connected with the automatic control system
45, the instrument is provided with the second drain solenoid valve electrically connected with the automatic control system with the drainpipe of air accumulator 20
46, the technique is provided with the 3rd drain solenoid valve electrically connected with the automatic control system with the drainpipe of air accumulator 34
47。
Instrument gas after-treatment system described in the utility model includes being connected to the surge tank 48 and the instrument
Branch line and second instrument gas post processing branch line are post-processed with the gas of the first instrument between air accumulator 20, the first instrument is used
Gas post processing branch line includes electrically connecting with the automatic control system and from the surge tank 48 to the instrument air accumulator
20 the first pneumatic on-off valves 21 being sequentially connected in series, the first fore filter 10, the first freezing type drier 11, the first oil removing
Filter 12, the first low-grade fever absorption drier 13, the first accurate filter 14 and the second pneumatic on-off valve 23, the second instrument
Include electrically connecting with the automatic control system and from the surge tank 48 to the instrument gas storage with gas post processing branch line
The 3rd pneumatic on-off valve 22 that tank 20 is sequentially connected in series, the second fore filter 15, the second freezing type drier 16, the second oil removing
Filter 17, the second low-grade fever absorption drier 18, the second accurate filter 19 and the 4th pneumatic on-off valve 24.
Technique gas after-treatment system described in the utility model includes being connected to the surge tank 48 and the technique
Branch line and the second technique gas post processing branch line are post-processed with the gas of the first technique between air accumulator 34, first technique is used
Gas post processing branch line includes electrically connecting with the automatic control system and from the surge tank 48 to the technique air accumulator
34 the 5th pneumatic on-off valves 35 being sequentially connected in series, the 3rd fore filter 28, the 3rd freezing type drier 29, the first dedusting
The pneumatic on-off valve 37 of filter 30 and the 6th, second technique gas post processing branch line include electric with the automatic control system
Connect and be sequentially connected in series from the surge tank 48 to the technique air accumulator 34 the 7th pneumatic on-off valve 36, the 4th preposition mistake
Filter 31, the 4th freezing type drier 32, the second dust removal filter 33 and the 8th pneumatic on-off valve 38.
Cooling accessory system described in the utility model includes being connected with outside cooling water equipment and outside backwater equipment respectively
Cooling water supply pipe 49 and CWR 50, the cooling water supply pipe 49 respectively with the frequency conversion air compressor 1, first
Air compressor machine 2, the second air compressor machine 3, the first freezing type drier 11, the second freezing type drier 16, the 3rd freezing type drier 29
Connected with the pipeline of the 4th freezing type drier 32, the CWR 50 respectively with the frequency conversion air compressor 1, the first pneumatics
Machine 2, the second air compressor machine 3, the first freezing type drier 11, the second freezing type drier 16, the 3rd freezing type drier 29 and
The pipeline of four freezing type drier 32 connects；
The pipeline that cooling water supply pipe 49 described in the utility model is connected with the frequency conversion air compressor 1 be provided with it is described from
9th pneumatic on-off valve 5 of autocontrol system electrical connection, the pipe that the cooling water supply pipe 49 is connected with first air compressor machine 2
Road is provided with the tenth pneumatic on-off valve 6 that electrically connect with the automatic control system, the cooling water supply pipe 49 and described the
The pipeline of two air compressor machines 3 connection is provided with the 11st pneumatic on-off valve 7 electrically connected with the automatic control system, the cooling
The pipeline that water feed pipe 49 is connected with first freezing type drier 11 is provided with what is electrically connected with the automatic control system
12nd pneumatic on-off valve 25, the pipeline that the cooling water supply pipe 49 is connected with second freezing type drier 16 are provided with
The 13rd pneumatic on-off valve 26 electrically connected with the automatic control system, the cooling water supply pipe 49 and the described 3rd freezing
The pipeline that formula drying machine 29 connects is provided with the 14th pneumatic on-off valve 39 electrically connected with the automatic control system, described
The pipeline that cooling water supply pipe 49 is connected with the 4th freezing type drier 32 is provided with and is electrically connected with the automatic control system
The 15th pneumatic on-off valve 40 connect；
It is sequentially provided with and the automatic control system along water supply direction on cooling water supply pipe 49 described in the utility model
Flowmeter 8, pressure gauge and the thermometer of electrical connection.
The utility model is located at the first low-grade fever absorption drier in the first instrument with gas post processing branch line
The first exhaust magnetic valve 41 electrically connected with the automatic control system is provided between 13 and first accurate filter 14,
The second instrument is located at the second low-grade fever absorption drier 18 and second secondary filter with gas post processing branch line
The second exhaust magnetic valve 42 electrically connected with the automatic control system is provided between device 19, is located after the first technique gas
It is provided with reason branch line between the 3rd freezing type drier 29 and the first dust removal filter 30 with described automatically control and is
3rd exhaust solenoid valve 43 of system electrical connection, it is located at the 4th freezing type with gas post processing branch line in second technique
The 4th exhaust solenoid valve 44 electrically connected with the automatic control system is provided between the dust removal filter 33 of drying machine 32 and second.
First fore filter 10 described in the utility model, the first oil removal filter 12, the first accurate filter 14,
Two fore filters 15, the second oil removal filter 17, the second accurate filter 19, the 3rd fore filter 28, the first dedusting
Filter 30, the 4th fore filter 31 and the second dust removal filter 33 are parallel with a bypass pipe with ball valve respectively.
The utility model passes through PLC control system or DCS control systems and operated pneumatic valve, electromagnetic valve, flowmeter, pressure
Close fit between each equipment in transmitter and pipeline, under collective effect, effectively realizing only needs a key just can start entirely
System operation and the purpose on duty without full-time staff, while the utility model need to only configure a low-voltage variable frequency air compressor machine,
Avoid variable-frequency motor or the excessive caused harmonic problem of VFC；In addition, the utility model uses a small amount of automatic valve
The hand-operated valve largely used in legacy system is instead of, reduces disposable input, decreases later stage manual operation and maintenance
Workload.Whole system is simple and safe, and application is good, and cost is low, is advantageous to the power source management of full factory, has extensive
Application prospect.
The utility model is briefly described below.
First, the requirement due to instrument gas in the index of quality such as dew point, oil content, dustiness is far above technique gas,
And general existing technique gas has instrument gas in industrial production again, therefore the utility model is provided with technique gas and instrument gas
After-treatment system, as shown in Figure 1.
2nd, due in industrial production compressed air dosage it is general all bigger, meanwhile, in order to ensure to occur in certain equipment
Compressed air system, which remains to offer quality and yield, during failure can meet the compressed air of requirement, therefore the utility model
Multiple air compressors and the after-treatment system of a plurality of technique gas and instrument gas are configured with, as shown in figure 1, the present embodiment uses one
Illustrate exemplified by platform frequency conversion air compressor and two common air compressor machines, while technique is respectively used with gas and instrument with the after-treatment system of gas
Two are illustrated.
(1) 1 frequency conversion air compressor is configured, and at least 1 non-frequency air compressor machine (abbreviation air compressor machine, is 2 skies in accompanying drawing 1
Press)；
(2) each at least two of the after-treatment system of technique gas and instrument gas handles branch line, is two in accompanying drawing 1.
3rd, in order to realize one-key start, unattended automatization level, system configuration 1 frequency conversion air compressor and phase
Automatic instrument(s) and valve are closed, is automatically controlled using DCS control systems or PLC control system.
4th, the necessary manually-operated gate of system configuration, as shown in Figure 1.
5th, technology implementation process of the present utility model is as follows：
(1) air-compressor set
1. frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3 open, stop, loading, unloading and frequency conversion air compressor 1
Variable frequency adjustment, the system is based on first pressure transmitter 4, enters supplemented by the pressure transmitter 27 of second pressure transmitter 9 and the 3rd
Row coordinated signals.
2. it is respectively provided with the 9th gas on the cooling water supply pipe of frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3
Dynamic switch valve 5, the tenth pneumatic on-off valve 6, the 11st pneumatic on-off valve 7, therefore, unlatching, stop jumping, the shutdown of above-mentioned individual device
Following condition must be met：
(1) open
1) cooling water has supplied water, i.e., flowmeter 8 can detect outflow；
2) the 9th pneumatic on-off valve 5, the tenth pneumatic on-off valve 6, the 11st jettron of the cooling water of air compressor machine
Valve 7 has been opened；
3) frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3 are opened the prerequisite condition of institute and met.
Above-mentioned condition meets simultaneously after, frequency conversion air compressor 1, the first air compressor machine 2, the side of the second air compressor machine 3 can open.
(2) stop jumping
1) cooling water interrupts, i.e., flowmeter 8 is without flow；
2) pneumatic on-off valve 5 of cooling water the 9th, the tenth pneumatic on-off valve 6, the 11st pneumatic on-off valve 7 are turned off；
3) frequency conversion air compressor 1, the first air compressor machine 2, the stop jumping condition of the second air compressor machine 3 are reached.
After any of the above-described condition meets, frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3 by control system it is automatic,
Forced stoppage.
(3) shut down
After frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3 are shut down, its pneumatic on-off valve of cooling water the 9th
5th, the tenth pneumatic on-off valve 6, the 11st pneumatic on-off valve 7 delay certain time (such as 15S, it is necessary to meet compressor operating requirement)
After can close.
3. coordinated signals
A reference value of the pressure value P 4 of first pressure transmitter 4 as interlocked control, second pressure transmitter 9 and the 3rd
The pressure value P 9 and P27 of pressure transmitter 27 are as reference value.Linked system loaded value PA, unloading value PB, target pressure value PT
Set and can adjust according to being actually needed, such as set PA=0.70MPa, PB=0.80MPa, PT=0.75MPa.PA、
PB, PT should meet PA<PT<PB, in order to which under host computer coordinated signals, frequency conversion air compressor 1 is preferentially adjusted, then linkage
Load-unload controls.
The frequency converter of frequency conversion air compressor 1 carries out pressure regulation under the PID mode of PLC control system or DCS control systems：
Work as P4<During PT, frequency converter raising frequency；Work as P4>During PT, frequency converter frequency reducing.It is by the raising frequency of frequency converter, frequency reducing, P4 is stable in PT
Go up and reach the purpose of energy-conservation.In addition, 1) frequency converter frequency lower limit is arranged to 20Hz, normal operating frequency scope is 20Hz-
50Hz；2) when frequency converter sets unit operation, such as run more than certain time (such as 30min) frequently surely with 20Hz, then shut down.
As system pressure P4<During PA, prepare input standby host, i.e. the first air compressor machine 2 and the second air compressor machine 3, and make its loading；
As system pressure P4>During PB, unload standby host.
Frequency conversion air compressor 1 is the main frame of coordinated signals, and the first air compressor machine 2 and the second air compressor machine 3 are that subsidiary engine (sequentially can be mutual
Change).
1) startup of air-compressor set, input order
A. frequency conversion air compressor 1 is started, the variable frequency starting of frequency conversion air compressor 1 simultaneously loads.After operation a period of time (such as 5min),
Such as the machine of frequency conversion air compressor 1 completely frequency (50Hz) operation but P4<PA, then need to put into the first air compressor machine 2；
B. start the first air compressor machine 2 and load.Such as P4>PA, then frequency converter frequency reducing is to stablize P4；Such as run a period of time
After (such as 5min), the full frequency (50Hz) of frequency conversion air compressor 1 runs and the first air compressor machine 2 is in stress state, but P4<PA, then need
Put into the second air compressor machine 3；
C. start the second air compressor machine 3 and load.Such as P4>PA, then frequency converter frequency reducing is to stablize P4；
D. when certain air compressor machine (such as the first air compressor machine 2) breaks down, then next air compressor machine of automatic start (such as second
Air compressor machine 3), and failure machine is rejected from coordinated signals sequence, put into again in linked system after fixing a breakdown.
E. if air compressor machine quantity is more than three, the startup of air-compressor set, order is put into by that analogy.
2) unloading of air-compressor set, stopping order
A. when frequency conversion air compressor 1, the first air compressor machine 2, the second air compressor machine 3 are all in normal operating condition, such as due to
The gas consumption at family significantly reduces, frequency conversion air compressor 1 run with low-limit frequency 20Hz but P4 still>PB, then it is empty to unload second
Press 3；
B. unloaded in the second air compressor machine 3, the air compressor machine 2 of frequency conversion air compressor 1 and first remains on a period of time (such as 30S)
Afterwards, frequency conversion air compressor 1 with low-limit frequency 20Hz run but P4 still>PB, then unload the first air compressor machine 2, the second air compressor machine 3
It is always maintained at zero load；
C. after the unloading of the first air compressor machine 2, such as P4<PB, then the first air compressor machine 2 keep unloaded, by the frequency conversion of frequency conversion air compressor 1
Adjust P4.When the zero load of certain air compressor machine reaches certain time (such as 30Min, according to the requirement of air compressor machine), the air compressor machine stops
Machine.
D. if air compressor machine quantity is more than three, the unloading of air-compressor set, order is stopped by that analogy.
3) coordinated signals sort
Firstly for faulty unit, rejected from coordinated signals sequence, ensure that it does not influence the normal of whole system
Operation；Next must assure that frequency conversion air compressor 1 starts first, and for the first air compressor machine 2, the second air compressor machine 3, sequence can have two
Kind scheme：
A. self-defined sequence；
B. by the working time length sequence of two units, to reach the purpose for making full use of unit performance, i.e., preferentially open
Unit dynamic, the operation working time is short.
(2) instrument gas after-treatment system
1. general requirement
(1) instrument with the opening of gas after-treatment system, stop, switch and be controlled by the P9 of second pressure transmitter 9.
(2) when instrument is started with gas after-treatment system, first turn on the first instrument gas of accompanying drawing 1 and post-process branch line (in figure
It is respectively that first instrument post-processes branch line and second instrument gas post processing branch line with gas from top to bottom) post processing branch line, that is, open
Open the first pneumatic on-off valve 21 and the second pneumatic on-off valve 23, the first fore filter 10, the first freezing type drier 11, first
Oil removal filter 12, the first low-grade fever absorption drier 13, the first accurate filter 14；
(3) in the Load-unload of the branch line normal operation and frequency conversion air compressor 1, the first air compressor machine 2 and the second air compressor machine 3 just
Chang Shi, such as reduced in certain time (such as 30S) interior P9 and (be such as down to 0.5MPa from 0.7MPa) to a certain extent, illustrate user's
Gas consumption increases, then the second instrument for automatically turning on the system in accompanying drawing 1 post-processes branch line with gas, that is, it is pneumatic to automatically turn on the 3rd
The pneumatic on-off valve 24 of switch valve 22 and the 4th, the second fore filter 15, the second freezing type drier 16, the second oil removal filter
17th, the second low-grade fever absorption drier 18, the second accurate filter 19, to ensure the gas consumption of instrument gas and quality.
(4) when two post processing branch lines of the system are run simultaneously, it is certain to exceed setting value (such as 0.75MPa) in P9
Time (such as 15S), then second instrument gas post processing branch line is automatically stopped, i.e., successively stops the second accurate filter in order
19th, the second low-grade fever absorption drier 18, the second oil removal filter 17, the second freezing type drier 16, the second fore filter
15th, the 3rd pneumatic on-off valve 22 and the 4th pneumatic on-off valve 24；
(5) only one post-process branch line operation when (generally be first instrument gas post processing branch line, unless
The branch line is repairing), as P9 still remains on still above setting value (such as 0.8MPa), this branch line, pass through instrument air accumulator
Safety valve emptying on 20, to ensure its safety；
(6) every post processing branch line is respectively provided with run time cumulative record, and accumulation at runtime reaches setting value (such as
After 5000h), system is alarmed, and prompts needs to carry out changing the maintenance works such as the drier of the filter core of filter, drying machine；
(7) as system alarm, prompting need to be repaired to certain post processing branch line：
1) such as two post processing branch lines are in running status, then stopping this by automatic control system operator needs to tie up
The branch line repaiied, it is repaired by maintenance mans, by manually reopening and putting into automatic mode after maintenance；
2) such as only this post processing branch line operation, then other an off-duty is first opened by automatic control system operator
Branch line, after its operation, then by automatic control system operator stop intend maintenance branch line, it is repaired, after maintenance
By manually reopening and putting into automatic mode；
3) when post-processing branch line and being in service mode for certain, fore filter (the first fore filter 10 of the branch line
Or second fore filter 15) before pneumatic on-off valve (the first pneumatic on-off valve 21 or the 3rd pneumatic on-off valve 22) and accurate mistake
Pneumatic on-off valve (the second pneumatic on-off valve 23 or the 4th after filter (the first accurate filter 14 or the second accurate filter 19)
Pneumatic on-off valve 24) must be in simultaneously lock-out state be closed, to ensure the safety of maintenance personal.
(8) every post-processes automatically controlling for all devices on branch line, must meet the requirements for automatic control of its own.
2. due to the fore filter (the first fore filter 10 or the second fore filter 15) of every post processing branch line
It is provided with compressed air piping after preceding and accurate filter (the first accurate filter 14 or the second accurate filter 19)
Pneumatic on-off valve, the cooling water supply pipe of freezing type drier (the first freezing type drier 11 or the second freezing type drier 16)
On be also provided with pneumatic on-off valve, therefore, every post processing branch line unlatching, stop jumping, shutdown must meet following condition：
(1) open：
1) cooling water supply pipe for cooling down accessory system has supplied water, i.e., flowmeter 8 can detect outflow；
2) pneumatic on-off valve on cooling water pipeline (the 12nd pneumatic on-off valve 25, the 13rd pneumatic on-off valve 26)
Open；
3) meet that this post-processes branch line all devices and open prerequisite condition.
Above-mentioned condition meets simultaneously after, this post-processes branch line and can opened.
When the branch line is opened, to prevent instrument is flow backwards with the compressed air of air accumulator 20 from being caused to the equipment on the branch line
Damage, (first is pneumatic for the pneumatic on-off valve before fore filter (the first fore filter 10 or the second fore filter 15)
The pneumatic on-off valve 22 of switch valve 21 or the 3rd) open after, the accurate filter of the branch line (the first accurate filter 14 or the second essence
Close filter 19) after pneumatic on-off valve (the second pneumatic on-off valve 23 or the 4th pneumatic on-off valve 24) delay certain time (such as
It is then turned on after 10S).
(2) stop jumping
1) the cooling water supply pipe water supply for cooling down accessory system is interrupted, i.e., flowmeter 8 is without flow；
2) pneumatic on-off valve on cooling water pipeline (the 12nd pneumatic on-off valve 25, the 13rd pneumatic on-off valve 26)
It is turned off；
3) any appliance reaches its stop jumping condition on this post processing branch line.
After any of the above-described condition meets, this post-processes branch line by control system is automatic, forced stoppage.
(3) shut down
After freezing type drier (the first freezing type drier 11, the second freezing type drier 16) shutdown, its cooling water
Pneumatic on-off valve (the 12nd pneumatic on-off valve 25, the 13rd pneumatic on-off valve 26) postpones certain time (such as 10S, it is necessary to meet
Freezing type drier service requirement) after can close.
When certain branch line is shut down, to prevent instrument is flow backwards with the compressed air of air accumulator 20 from being made to the equipment on the branch line
Into damage, the jettron before the fore filter (the first fore filter 10 or the second fore filter 15) of this branch line
Valve (the first pneumatic on-off valve 21 or the 3rd pneumatic on-off valve 22) and the branch line accurate filter (the first accurate filter 14 or
Second accurate filter 19) after pneumatic on-off valve (the second pneumatic on-off valve 23 or the 4th pneumatic on-off valve 24) simultaneously close off.
After its closing, the exhaust solenoid valve (first exhaust magnetic valve 41 or second exhaust magnetic valve 42) on the branch line automatically opens up,
The compressed air retained in the branch line is discharged, prevents it is opened next time to the branch line from causing difficulty, causing to endanger to maintenance personal
Danger.
3. coordinated signals
When instrument is started with gas after-treatment system under normal circumstances, the first instrument for first turning on the system in accompanying drawing 1 is used
Gas post processing branch line (is respectively that first instrument post-processes branch line and second instrument gas post processing branch with gas from top to bottom in figure
Line).Because the first freezing type drier 11 and the first low-grade fever absorption drier 13 are unable to no-load running, in frequency conversion air compressor
After startup, as P4=0.2MPa, the first freezing type drier of system automatic start 11；As P4=0.4MPa, system is automatic
Start the first low-grade fever absorption drier 13.
Power-up sequence is followed successively by：Frequency conversion air compressor 1, the first freezing type drier 11, the first low-grade fever absorption drier 13；
Shutdown sequence is opposite successively.
4. air accumulator draining
It is bigger in view of the air humidity of some areas, easy ponding in air accumulator.Ponding had both reduced having for air accumulator
Volume is imitated, and causes to have a strong impact on using the equipment of compressed air to follow-up, therefore the system is in surge tank 48, instrument gas storage
Tank 20 and technique are respectively provided with the first drain solenoid valve 45, the second drain solenoid valve 46 and the 3rd draining with the bottom of air accumulator 34
Magnetic valve 47 (the first drain solenoid valve 45, the second drain solenoid valve 46 and the 3rd drain solenoid valve 47 are closed type), control
Set in logic and beaten automatically every 15Min the first drain solenoid valves 45, the second drain solenoid valve 46 and the 3rd drain solenoid valve 47
Open 5Min, Auto-drainage.
(3) technique gas after-treatment system
Technique is similar with instrument gas after-treatment system with gas after-treatment system, repeats no more here.
(4) selection of control valve
1. utilizing in view of the effective of the energy and conveniently, the 9th pneumatic on-off valve the 5, the tenth is pneumatically opened in the system embodiment
Close valve 6, the 11st pneumatic on-off valve 7, the first pneumatic on-off valve 21, the 3rd pneumatic on-off valve 22, the second pneumatic on-off valve 23, the
Four pneumatic on-off valves 24, the 12nd pneumatic on-off valve 25, the 13rd pneumatic on-off valve 26, the 5th pneumatic on-off valve 35, the 7th gas
Dynamic switch valve 36, the 6th pneumatic on-off valve 37, the 8th pneumatic on-off valve 38, the 14th pneumatic on-off valve 39 and the 15th are pneumatically opened
Close valve 40 and use pneumatic operated valve, similarly, above-mentioned control valve can also use motor-driven valve.
2. to ensure system energy normal boot-strap and supply after long-term shut down, it is necessary to assure a wherein instrument gas branch line
Control valve is normally open, be should be noted that when from pneumatic operated valve：
(1) the 9th pneumatic on-off valve 5, the 12nd pneumatic on-off valve 25, the first pneumatic on-off valve 21 and the second jettron
Valve 23, or the 9th pneumatic on-off valve 5, the 13rd pneumatic on-off valve 26, the 3rd pneumatic on-off valve 22 and the 4th pneumatic on-off valve
24 should select single-acting air to close；
(2) when selecting double-acting cylinder such as above-mentioned pneumatic on-off valve, should be set in control logic the 9th when completely shutting down
Pneumatic on-off valve 5, the 12nd pneumatic on-off valve 25, the first pneumatic on-off valve 21 and the second pneumatic on-off valve 23, or the 9th gas
Dynamic switch valve 5, the 13rd pneumatic on-off valve 26, the 3rd pneumatic on-off valve 22 and the 4th pneumatic on-off valve 24 are in "ON" simultaneously
State.
The utility model is simple in construction, and design science is reasonable, easy to use, can be supplied simultaneously for instrument and production technology,
Each equipment in compressed air system and valve are accurately controlled using PLC control system or DCS control systems, are instrument
Table and production technology supply, open, stop, load, unload and frequency-modulating process in can effectively to participate in equipment protect, so as to prolong
Service life of the present utility model has been grown, has saved maintenance and use cost, while can effectively overcome prior art to waste the energy
The defects of, reach the purpose of energy-conserving and environment-protective, and operator's existing potential safety hazard in operation can also be effectively eliminated, fit
In wideling popularize application in the art.
Above-described embodiment is only one of preferred embodiment of the present utility model, be should not be taken to limit of the present utility model
Protection domain, as long as in body design thought of the present utility model and that mentally makes have no the change of essential meaning or profit
Color, the technical problem that it is solved is still consistent with the utility model, should be included in the scope of protection of the utility model
Within.
Claims (9)
- A kind of 1. automatic compression air system, it is characterised in that：Including frequency conversion air compressor (1), the first air compressor machine (2), second Air compressor machine (3), instrument with air accumulator (20), technique with air accumulator (34), respectively by pipeline and the frequency conversion air compressor (1), First air compressor machine (2) and the surge tank (48) of the second air compressor machine (3) connection, are connected to the surge tank (48) and the instrument is used Instrument gas after-treatment system between air accumulator (20), is connected between the surge tank (48) and technique air accumulator (34) Technique gas after-treatment system, respectively described frequency conversion air compressor (1), the first air compressor machine (2), the second air compressor machine (3), instrument The cooling accessory system cooled down with gas after-treatment system and technique with gas after-treatment system, and automatic control system；The frequency conversion air compressor (1), the first air compressor machine (2) and the second air compressor machine (3) are electrically connected with the automatic control system respectively Connect, the pipeline that the frequency conversion air compressor (1) is connected with the surge tank (48) is provided with first pressure transmitter (4), the instrument Table is provided with the second pressure transmitter (9) electrically connected with the automatic control system, institute with the steam line of air accumulator (20) The steam line for stating technique air accumulator (34) is provided with the 3rd pressure transmitter electrically connected with the automatic control system (27)；The instrument gas after-treatment system includes being connected to the surge tank (48) and the instrument air accumulator (20) Between first instrument post-process branch line and second instrument gas with gas and post-process branch line, the first instrument post-processes branch with gas Line include electrically connect with the automatic control system and from the surge tank (48) extremely the instrument air accumulator (20) successively The first pneumatic on-off valve (21) of series connection, the first fore filter (10), the first freezing type drier (11), the first oil removing filtering Device (12), the first low-grade fever absorption drier (13), the first accurate filter (14) and the second pneumatic on-off valve (23), described Two instrument include electrically connecting with the automatic control system and from the surge tank (48) to the instrument with gas post processing branch line The 3rd pneumatic on-off valve (22) that table is sequentially connected in series with air accumulator (20), the second fore filter (15), the second freezing type are dried Machine (16), the second oil removal filter (17), the second low-grade fever absorption drier (18), the second accurate filter (19) and the 4th gas Dynamic switch valve (24)；The technique gas after-treatment system includes being connected to the surge tank (48) and the technique air accumulator (34) Between the first technique post-process branch line and the second technique gas with gas and post-process branch line, first technique post-processes branch with gas Line include electrically connect with the automatic control system and from the surge tank (48) extremely the technique air accumulator (34) successively The 5th pneumatic on-off valve (35), the 3rd fore filter (28), the 3rd freezing type drier (29), the first dust removal and filtration of series connection Device (30) and the 6th pneumatic on-off valve (37), second technique with gas post processing branch line include with the automatic control system The 7th pneumatic on-off valve (36) that electrically connects and be sequentially connected in series from the surge tank (48) to the technique with air accumulator (34), the Four fore filters (31), the 4th freezing type drier (32), the second dust removal filter (33) and the 8th pneumatic on-off valve (38)；It is described cooling accessory system respectively with the frequency conversion air compressor (1), the first air compressor machine (2), the second air compressor machine (3), first Freezing type drier (11), the second freezing type drier (16), the 3rd freezing type drier (29) and the 4th freezing type drier (32) pipeline connects, and the cooling accessory system also electrically connects with the automatic control system.
- A kind of 2. automatic compression air system according to claim 1, it is characterised in that：The cooling accessory system bag The cooling water supply pipe (49) and CWR (50) being connected respectively with outside cooling water equipment and outside backwater equipment are included, The cooling water supply pipe (49) respectively with the frequency conversion air compressor (1), the first air compressor machine (2), the second air compressor machine (3), first Freezing type drier (11), the second freezing type drier (16), the 3rd freezing type drier (29) and the 4th freezing type drier (32) pipeline connects, the CWR (50) respectively with the frequency conversion air compressor (1), the first air compressor machine (2), second empty Press (3), the first freezing type drier (11), the second freezing type drier (16), the 3rd freezing type drier (29) and the 4th Freezing type drier (32) pipeline connects；The pipeline that the cooling water supply pipe (49) is connected with the frequency conversion air compressor (1) is provided with and the automatic control system 9th pneumatic on-off valve (5) of electrical connection, on the pipeline that the cooling water supply pipe (49) is connected with first air compressor machine (2) Provided with the tenth pneumatic on-off valve (6) electrically connected with the automatic control system, the cooling water supply pipe (49) and described the The pipeline of two air compressor machines (3) connection is provided with the 11st pneumatic on-off valve (7) electrically connected with the automatic control system, described The pipeline that cooling water supply pipe (49) is connected with first freezing type drier (11) is provided with and the automatic control system 12nd pneumatic on-off valve (25) of electrical connection, the cooling water supply pipe (49) connect with second freezing type drier (16) The pipeline connect is provided with the 13rd pneumatic on-off valve (26) electrically connected with the automatic control system, the cooling water supply pipe (49) pipeline being connected with the 3rd freezing type drier (29) is provided with the tenth electrically connected with the automatic control system Four pneumatic on-off valves (39), set on the pipeline that the cooling water supply pipe (49) is connected with the 4th freezing type drier (32) There is the 15th pneumatic on-off valve (40) electrically connected with the automatic control system；The flow electrically connected with the automatic control system is sequentially provided with along water supply direction on the cooling water supply pipe (49) Count (8), pressure gauge and thermometer.
- A kind of 3. automatic compression air system according to claim 2, it is characterised in that：The surge tank (48), instrument Table is equipped with safety valve with air accumulator (20) and technique with air accumulator (34).
- A kind of 4. automatic compression air system according to claim 3, it is characterised in that：In the first instrument gas It is provided with post processing branch line between the first low-grade fever absorption drier (13) and first accurate filter (14) The first exhaust magnetic valve (41) electrically connected with the automatic control system, it is upper with gas post processing branch line in the second instrument It is provided between the second low-grade fever absorption drier (18) and second accurate filter (19) and is automatically controlled with described The second exhaust magnetic valve (42) of system electrical connection, freezed in first technique with gas post processing branch line positioned at the described 3rd The 3rd exhaust electricity electrically connected with the automatic control system is provided between formula drying machine (29) and the first dust removal filter (30) Magnet valve (43), it is located at the 4th freezing type drier (32) and the second dedusting with gas post processing branch line in second technique The 4th exhaust solenoid valve (44) electrically connected with the automatic control system is provided between filter (33).
- A kind of 5. automatic compression air system according to claim 4, it is characterised in that：The instrument air accumulator (20) instrument gas supply flow meter is additionally provided with steam line, the technique is additionally provided with work with the steam line of air accumulator (34) Skill gas supply flow meter.
- A kind of 6. automatic compression air system according to claim 5, it is characterised in that：The instrument air accumulator (20), the technique is with being equipped with drainpipe, the draining of the surge tank (48) on air accumulator (34) and the surge tank (48) Pipe is provided with the first drain solenoid valve (45) for being electrically connected with the automatic control system, and the instrument is with the rows of air accumulator (20) Water pipe is provided with the second drain solenoid valve (46) electrically connected with the automatic control system, technique air accumulator (34) Drainpipe is provided with the 3rd drain solenoid valve (47) electrically connected with the automatic control system.
- A kind of 7. automatic compression air system according to claim 6, it is characterised in that：First fore filter (10), the first oil removal filter (12), the first accurate filter (14), the second fore filter (15), the second oil removal filter (17), the second accurate filter (19), the 3rd fore filter (28), the first dust removal filter (30), the 4th fore filter (31) and the second dust removal filter (33) is parallel with a bypass pipe with ball valve respectively.
- A kind of 8. automatic compression air system according to claim 1-7 any one, it is characterised in that：It is described automatic Control system is PLC control system.
- A kind of 9. automatic compression air system according to claim 1-7 any one, it is characterised in that：It is described automatic Control system is DCS control systems.
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| CN201720931067.6U CN206958603U (en) | 2017-07-28 | 2017-07-28 | A kind of automatic compression air system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123088A (en) * | 2022-12-22 | 2023-05-16 | 华能山东发电有限公司白杨河发电厂 | Intelligent control and fault display screw air compressor system |
-
2017
- 2017-07-28 CN CN201720931067.6U patent/CN206958603U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116123088A (en) * | 2022-12-22 | 2023-05-16 | 华能山东发电有限公司白杨河发电厂 | Intelligent control and fault display screw air compressor system |
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