CN106014944B - A kind of oil-free compressor control method and its equipment - Google Patents

A kind of oil-free compressor control method and its equipment Download PDF

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Publication number
CN106014944B
CN106014944B CN201610329655.2A CN201610329655A CN106014944B CN 106014944 B CN106014944 B CN 106014944B CN 201610329655 A CN201610329655 A CN 201610329655A CN 106014944 B CN106014944 B CN 106014944B
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CN
China
Prior art keywords
compressor
supercharging
pressure
magnetic valve
value
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CN201610329655.2A
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Chinese (zh)
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CN106014944A (en
Inventor
江永铭
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广东大满贯压缩机有限公司
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Priority to CN201610329655.2A priority Critical patent/CN106014944B/en
Publication of CN106014944A publication Critical patent/CN106014944A/en
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Publication of CN106014944B publication Critical patent/CN106014944B/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06Control using electricity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02Lubrication
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/02Lubrication
    • F04B39/0223Lubrication characterised by the compressor type
    • F04B39/0276Lubrication characterised by the compressor type the pump being of the reciprocating piston type, e.g. oscillating, free-piston compressors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/06Cooling; Heating; Prevention of freezing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/16Filtration; Moisture separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B41/00Pumping installations or systems specially adapted for elastic fluids
    • F04B41/06Combinations of two or more pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02Stopping, starting, unloading or idling control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02Stopping, starting, unloading or idling control
    • F04B49/03Stopping, starting, unloading or idling control by means of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/10Other safety measures

Abstract

The present invention relates to air compressor field, particularly a kind of oil-free compressor system, including underframe, air compression plant and supercharging device;Air compression plant and supercharging device are installed on underframe;Underframe bottom is provided with water inlet pipe main line, outlet pipe main line and tapping pipe main line;Air compression plant includes air inlet pipeline, and air inlet pipeline is sequentially installed with compressor, knockout drum and air accumulator, and compressor, knockout drum and air accumulator are installed on underframe;Supercharging device includes air delivering pipeline, supercharger and the second motor, pressure piping is provided between supercharger and air accumulator, air delivering pipeline is installed on supercharger outlet side;Compressor proposed by the present invention and control method equipment start and shutdown in terms of more easily, in addition, equipment at work for gas overtemperature, superpressure and drive device overload in terms of preferably control mode and emergency flight control prediction scheme again.

Description

A kind of oil-free compressor control method and its equipment
Technical field
The present invention relates to air compressor field, more particularly to a kind of oil-free compressor control method and its equipment.
Background technology
Air compressor is a kind of equipment to compressed gas.Air compressor is similar with water pump structure.Most of skies Air compressor is reciprocating-piston, rotating vane or rotary screw;Wherein, the lubricating system of helical-lobe compressor include water lubrication and Oil lubrication, oil lubricating compressor is lubricated using fluid, but compressor operation when lubricating fluid can be atomized, this In the case of, the lubricating fluid of atomization can be entered in air pipe line with gas;However, the gas with fluid is unfavorable for using, it is This needs to carry out Oil-gas Separation processing.
Compressor is usually that screw air compressor is main frame in operation, generally, and screw air compressor is in start Due to load, causing start larger to equipment attrition;And equipment is gentle in drive device overload, the temperature of processing gas Detection and emergency preplan, control and operating system of the equipment in use without safety, so that limited are not provided with terms of pressure The performance of equipment can not completely be brought into play in safety in production.
The content of the invention
For drawbacks described above, it is an object of the invention to propose a kind of booster compressor control method and its equipment, the dress The temperature and pressure of gas can be controlled by putting work in-process, and is crossed for gas overtemperature, superpressure and drive device and to be loaded with preferably Handle prediction scheme.
It is an object of the invention to propose a kind of booster compressor systems, its work in-process can control the temperature and pressure of gas Power, and crossed for gas overtemperature, superpressure and drive device and be loaded with preferable processing environment and condition.
For up to this purpose, the present invention uses following technical scheme:
A kind of control method of oil-free compressor, comprises the following steps:
1) initial parameter is set:Compressor start-up time delay Y, the startup time Q of magnetic valve, idle running limitation time are set K and downtime T;Wherein the magnetic valve startup time includes compressor magnetic valve startup time YQ and supercharging device magnetic valve is opened Dynamic time ZQ;Idle running limitation time K includes compressor idle period YK and supercharging device idle period ZK;During the shutdown Between T include compressor shutdown countdown YT and supercharging device and shut down countdown ZT, wherein the compressor shutdown time is earlier than institute State supercharging device downtime;2) starting device:Started by press is switched, and supercharging device is powered and operated, while compressor is delayed The startup time starts countdown, and the compressor start time arrives, compressor start operating, is arrived while magnetic valve starts the time, electromagnetism Valve must be electrically turn off, and start gas-loaded operation;3) supercharger loading and unloading:When supercharging device output pressure is more than supercharging device During unloading pressure, for production safety, magnetic valve while dead electricity, supercharging device and compressor are unloaded simultaneously, dally the limitation time Start reciprocal;During the limitation idle period opens inverse, when supercharging device output pressure is less than supercharging device unloading pressure value, electricity Magnet valve simultaneously must be electric, and supercharging device and compressor recover load operations together.
4) shut down:Halt switch is pressed, compressor magnetic valve dead electricity unloading, compressor shutdown countdown starts timing;Pressure Supercharger magnetic valve dead electricity is unloaded after contracting machine is shut down, while supercharging device, which shuts down countdown, starts countdown, supercharging device after Continuous work is until supercharging device shutdown countdown terminates, i.e. completion is shut down.
Further, the step 3) also include step 5) compressor loads with unloading:When Compressor Discharge Pressure is more than During compressor unloading pressure value, for production safety, compressor magnetic valve dead electricity unloading, the compressor dallies and enters idle running The countdown of limitation time, in countdown process, when Compressor Discharge Pressure is less than compressor loads pressure value, compression is electromechanical Magnet valve obtains electric recovery loading;
Also include step 6)) idle running limitation:After the idle running limitation time terminates, final pressure at expulsion does not drop to supercharger and added When carrying below pressure value, supercharging device and compressor shutdown, when final pressure at expulsion is less than below the on-load pressure value of supercharger When, equipment will be by step 2) start sequence starting.
It is preferred that the step 1) preset value also include antioverloading numerical value, overpressure value, shut down pressure value, temperature pre-warning Value and shutdown temperature, the compressor and the supercharging device are equipped with the antioverloading numerical value, the overpressure value, described stopped Machine pressure value, the temperature pre-warning value and the shutdown temperature;
Also include step 7) processing equipment exception:Equipment state be in the temperature pre-warning value in the range of then automatic alarm but Do not shut down;
Equipment state is in the antioverloading numerical value, the overpressure value, the shutdown pressure value and the shutdown temperature Then equipment downtime;
The equipment is by step 7) recover it is normal after equipment will be by step 2) sequence starting of startup.
Further, including underframe, air compression plant and supercharging device;The air compression plant and supercharging dress Put and be installed on the underframe;
The underframe bottom is provided with water inlet pipe main line, outlet pipe main line and tapping pipe main line;The air pressure Compression apparatus includes air inlet pipeline, and the air inlet pipeline is sequentially installed with compressor, knockout drum and air accumulator, the compressor, point The underframe is installed on from tank and air accumulator, the air compression plant also includes the first motor, the first driving electricity Machine is installed on the underframe, and first motor is used to drive the compressor;The supercharging device include air delivering pipeline, Supercharger and the second motor, are provided with pressure piping, the air delivering pipeline peace between the supercharger and the air accumulator Loaded on the supercharger outlet side, second motor is installed on the underframe, and second motor is used to drive The supercharger.
Further, the air compression plant also includes air cleaner, the air cleaner be installed on it is described enter Air pipe air inlet;The air compression plant also includes liquid back pipe road, and the liquid back pipe road is communicated in the knockout drum and institute State between compressor, the liquid back pipe road is provided with water filter and magnetic valve;It is provided between the compressor and the knockout drum Water pipe, the water pipe both sides, which are provided between water compensating valve, the water compensating valve, is provided with filling pipe, and the filling pipe is provided with Water softener and y-type filter.
It is preferred that the supercharger is bent axle two-diameter piston supercharger, the bent axle two-diameter piston supercharger includes two Provided with regulation pipeline between the piston pressurizers of linkage, the piston pressurizers, the regulation pipeline is also equipped with gas-water separation Device, the pressure piping is provided with accurate filter.
Further, in addition to cooling device, the cooling device include compressor aftercooler, charge inter cooling but device, Crankcase oils cooler, supercharging aftercooler and lubricating fluid cooler;The compressor aftercooler is installed on knockout drum and institute State between air accumulator;But device is installed on regulation pipeline to the charge inter cooling;The crankcase oils cooler is installed on the supercharging Device;The supercharging aftercooler is installed on the air delivering pipeline;The lubricating fluid cooler is installed on the liquid back pipe road;Institute Cooling device is stated for water circulation cooling device, the cooling device includes water inlet pipe and outlet pipe, the cooling device water inlet pipe Connected with the water inlet pipe main line, the cooling device outlet pipe is connected with the outlet pipe main line.
Further, the air compression plant also includes intake valve, and the intake valve is installed on the air cleaner Between the compressor;The air compression plant also includes blowdown piping, and the blowdown piping is communicated in the intake valve With the knockout drum, the blowdown piping is provided with magnetic valve;The intake valve is operated pneumatic valve, and the blowdown piping is used to control The intake valve;The regulation pipeline is provided with magnetic valve.
It is preferred that the regulation pipeline is provided with one-level temperature sensor, but device is provided with first class pressure table to the charge inter cooling With first class pressure sensor;The air delivering pipeline self-supercharging device is sequentially provided with two grades of temperature sensors, two grades of pressures to gas outlet Power table, check valve and secondary pressure sensor.
Further, in addition to electric control gear, the electric control gear is used for the Automated condtrol of equipment, the electric control gear By controlling the first motor, the second motor and magnetic valve come control device;The electric control gear passes through one-level temperature The gaseous state that sensor, two grades of temperature sensors, first class pressure sensor and secondary pressure sensors come inside signal piping; But device and the air delivering pipeline are equipped with safety valve for the air accumulator, the charge inter cooling;The knockout drum and the compressor Air inlet pipeline between aftercooler is provided with the safety valve:The knockout drum bottom is provided with drainpipe, the drainpipe peace Loaded on the underframe;The air accumulator, the accurate filter, the moisture trap and the air delivering pipeline are equipped with blowdown Pipe, the blow-off pipe is communicated in the tapping pipe main line.
Water softener is employed, makes the problems such as channel interior will not block because precipitating dirt, this external equipment is provided with and put Air pipe and intake valve, control intake valve using blowdown piping so that having in air inlet pipeline and constituting low-load and start environment, So that compressor can start in the environment of low-load or zero load, so lower compared to bringing onto load startup energy consumption, abrasion It is smaller.
Brief description of the drawings
Fig. 1 is the system construction drawing of one embodiment of the present of invention;
Fig. 2 is the functional flow diagram of one embodiment of the present of invention.
Wherein:Compressor 210, knockout drum 220, air accumulator 230, the first motor 240, air cleaner 250, air inlet Valve 260, supercharger 310, the second motor 320, accurate filter 400, moisture trap 410, compressor aftercooler 510th, charge inter cooling but device 520, crankcase oils cooler 530, supercharging aftercooler 540, lubricating fluid cooler 550, air inlet pipe Road A10, pressure piping A20, regulation pipeline A30, air delivering pipeline A40, liquid back pipe road A50, water pipe A60, blowdown piping A70。
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
A kind of control method of oil-free compressor, comprises the following steps:
1) initial parameter is set:Compressor start-up time delay Y, the startup time Q of magnetic valve, idle running limitation time are set K and downtime T;Wherein the magnetic valve startup time includes compressor magnetic valve startup time YQ and supercharging device magnetic valve is opened Dynamic time ZQ;Idle running limitation time K includes compressor idle period YK and supercharging device idle period ZK;During the shutdown Between T include compressor shutdown countdown YT and supercharging device and shut down countdown ZT, wherein the compressor shutdown time is earlier than institute State supercharging device downtime;
2) starting device:Started by press is switched, and supercharging device is powered and operated, while compressor start-up time delay starts Countdown, the compressor start time arrives, compressor start operating, is arrived while magnetic valve starts the time, magnetic valve obtains electric, valve is closed Close, start gas-loaded operation;
3) supercharger loading and unloading:When supercharging device output pressure is more than supercharging device unloading pressure, in order to produce Safety, magnetic valve are while dead electricity, valve opening, valve supercharging device and compressor are unloaded simultaneously, and the idle running limitation time starts down Number;During the limitation idle period opens inverse, when supercharging device output pressure is less than supercharging device unloading pressure value, magnetic valve is same Shi get electricity, supercharging device and compressor are same to recover load operations;
4) shut down:Halt switch is pressed, compressor magnetic valve dead electricity unloading, compressor shutdown countdown starts timing;Pressure Supercharger magnetic valve dead electricity is unloaded after contracting machine is shut down, while supercharging device, which shuts down countdown, starts countdown, supercharging device after Continuous work is until supercharging device shutdown countdown terminates, i.e. completion is shut down.Step 1) determine to set by setting reduced parameter The function of performing is needed, the problem of equipment needs to avoid is wanted it is possible thereby to set in advance, so as to cause the device under security settings Efficient work;Step 2) Starting mode compressor in low environment is loaded, is made compressor when startup Startup it is lighter, abrasion and power consumption it is lower;Step 3) loading and unloading of supercharger avoids the safety that pressure overload is caused Problem, so as not to equipment damaged because of pressure overload and therefore caused by accident;Step 4) halt mode to be in equipment negative Carry in low environment and shut down, make equipment attrition lower, with the service life of this extension device.
In addition, the step 3) also include step 5) compressor loads with unloading:When Compressor Discharge Pressure is more than compression During machine unloading pressure value, for production safety, the unloading of compressor magnetic valve dead electricity, the compressor dallies and enters idle running and limits Time countdown, in countdown process, when Compressor Discharge Pressure is less than compressor loads pressure value, compressor magnetic valve Obtain electric recovery loading;Also include step 6)) idle running limitation:After the idle running limitation time terminates, final pressure at expulsion does not drop to increasing When below press on-load pressure value, supercharging device and compressor shutdown, when final pressure at expulsion is less than the on-load pressure of supercharger When value is following, equipment will be by step 2) sequence starting that starts.Step 5) loading and unloading of compressor avoids pressure overload The safety problem caused, in order to avoid device damage and the accident therefore caused;Step 6) idle running limitation setting make equipment place Reach that certain time can shut down when idle running, and when final pressure at expulsion is less than below the on-load pressure value of supercharger, can be with Restarting, this mode is while protection equipment is safe, it is to avoid waste and loss that equipment idle running is produced
Further, the step 1) preset value also includes antioverloading numerical value, overpressure value, to shut down pressure value, temperature pre- Alert value and shutdown temperature, the compressor and the supercharging device be equipped with the antioverloading numerical value, the overpressure value, described Shut down pressure value, the temperature pre-warning value and the shutdown temperature;Also include step 7) processing equipment exception:Equipment state is in Automatic alarm but do not shut down then in the range of the temperature pre-warning value;Equipment state is in the antioverloading numerical value, the superpressure number Value, the shutdown pressure value and the shutdown temperature then equipment downtime;The equipment is by step 7) recover it is normal after equipment general By step 2) start sequence starting.Step 7) by setting abnormal conditions processing unit, make equipment overall security higher, enter The perfect fault type of one step, and fault type is handled, avoid equipment itself from damaging or cause the accident with this
A kind of oil-free compressor system, including underframe, air compression plant and supercharging device;The air compression plant The underframe is installed on the supercharging device;The underframe bottom is provided with water inlet pipe main line, outlet pipe main line and let out Water pipe main line;The air compression plant is sequentially installed with compressor including air inlet pipeline A10, the air inlet pipeline A10 210th, knockout drum 220 and air accumulator 230, the compressor 210, knockout drum 220 and air accumulator 230 are installed on the underframe, institute Stating air compression plant also includes the first motor 240, and first motor 240 is installed on the underframe, and described the One motor 240 is used to drive the compressor 210;The supercharging device includes air delivering pipeline A40, supercharger 310 and the Two motors 320, pressure piping A20, the air delivering pipeline are provided between the supercharger 310 and the air accumulator 230 A40 is installed on the outlet side of supercharger 310, and second motor 320 is installed on the underframe, the second driving electricity Machine 320 is used to drive the supercharger 310.Air compression plant and supercharging device are installed on into underframe is easy to equipment integrally to move It is dynamic, and underframe the water inlet pipe main line, outlet pipe main line and the tapping pipe main line that set be easy to all kinds of pipelines installation and Sort out, make the pipeline orderliness of equipment apparent.
Further, the air compression plant also includes air cleaner 250, and the air cleaner 250 is installed on The air inlet pipeline A10 air inlets;The air compression plant also includes liquid back pipe road A50, and the liquid back pipe road A50 is communicated in Between the knockout drum 220 and the compressor 210, the liquid back pipe road A50 is provided with water filter and magnetic valve;The compression Provided with water pipe A60 between machine 210 and the knockout drum 220, the water pipe A60 is provided with two water compensating valves, two benefits Water pipe between water valve is provided with the filling pipe for being connected to water source, and the filling pipe is provided with water softener and y-type filter.
In addition, the supercharger 310 is bent axle two-diameter piston supercharger, the bent axle two-diameter piston supercharger includes two Between the piston pressurizers of linkage, the piston pressurizers gas is also equipped with provided with regulation pipeline A30, the regulation pipeline A30 Separator 410, the pressure piping A20 is provided with accurate filter 400.The setting of air cleaner can avoid dust from entering In pipeline, the effect that intake valve 260 is used for blowdown piping is the opening and closing for controlling air inlet pipeline A10;Liquid back pipe road A50's sets Putting enables the lubricating oil between knockout drum 220 and the compressor 210 to recycle, soft water filter and y-type filter energy It is enough to soften water, it is to avoid to accumulate dirt by pipe blocking.
Further, in addition to cooling device, the cooling device includes compressor aftercooler 510, charge inter cooling but Device 520, crankcase oils cooler 530, supercharging aftercooler 540 and lubricating fluid cooler 550;The compressor aftercooler 510 are installed between knockout drum 220 and the air accumulator 230;But device 520 is installed on regulation pipeline A30 to the charge inter cooling;Institute State crankcase oils cooler 530 and be installed on the supercharging device;The supercharging aftercooler 540 is installed on the air delivering pipeline A40;The lubricating fluid cooler 550 is installed on the liquid back pipe road A50;The cooling device is water circulation cooling device, institute Stating cooling device includes water inlet pipe and outlet pipe, and the cooling device water inlet pipe is connected with the water inlet pipe main line, described cold But device outlet pipe is connected with the outlet pipe main line, and cooling device is used to cool, and the gas in equipment, liquid is passed through cold But device is limited in safe range, is conducive to the guarantee of production safety and product quality.
In addition, the air compression plant also includes intake valve 260, the intake valve 260 is installed on the air-filtering Between device 250 and the compressor 210;The air compression plant also includes blowdown piping A70, the blowdown piping A70 companies The intake valve 260 and the knockout drum 220 are passed through, the blowdown piping A70 is provided with magnetic valve;The intake valve is pneumatic operated valve Door, the blowdown piping A70 is used to control the intake valve 260;The regulation pipeline A30 is provided with magnetic valve.Blowdown piping A70 For controlling intake valve 260, air inlet pipe A10 one end is closed with this, make it have to form the relatively low environment of load, so that Compressor 210 is started and played a role, the mill of compressor can directly be reduced by reducing the starting load of compressor 210 Damage.
Further, the regulation pipeline A30 is provided with one-level temperature sensor, and but device 520 is provided with one to the charge inter cooling Stage pressure table and first class pressure sensor;The air delivering pipeline A40 self-supercharging devices are sequentially provided with two grades of temperature biographies to gas outlet Sensor, secondary pressure table, check valve and secondary pressure sensor.Adjust one-level temperature sensor, one-level pressure that pipeline A30 is set Power table and first class pressure sensor and two grades of temperature sensors, effects of secondary pressure table and secondary pressure sensor are Gaseous state is detected, and data feedback will be detected to electric control gear, so that electric control gear is carried out according to detection data to equipment Control, prevents from exceeding safe range set in advance;Electric control gear is used for control device, is set accordingly in electric control gear in advance Default value, by detecting that the data of feedback are controlled to motor, magnetic valve and temperature-sensing valve, be in equipment efficient In the running environment of safety
In addition, also including electric control gear, the electric control gear is used for the Automated condtrol of equipment, and the electric control gear passes through The first motor 240, the second motor 320 and magnetic valve is controlled to carry out control device;The electric control gear passes through one-level temperature The gas shape that degree sensor, two grades of temperature sensors, first class pressure sensor and secondary pressure sensors come inside signal piping State;But device 520 and the air delivering pipeline A40 are equipped with safety valve for the air accumulator 230, the charge inter cooling;The knockout drum Air inlet pipeline A10 between 220 and the compressor aftercooler 510 is provided with the safety valve:The bottom of knockout drum 220 Provided with drainpipe, the drainpipe is installed on the underframe;The air accumulator 230, the accurate filter 400, the air water Separator 410 and the air delivering pipeline A40 are equipped with blow-off pipe, and the blow-off pipe is communicated in the tapping pipe main line.Peace The setting of full valve further ensures the emergency capability of equipment, can not meet discharge degree requirement in magnetic valve, then can use Safety valve is unloaded to equipment;The setting of drainpipe and blow-off pipe is beneficial to the cleaning of equipment, in case device interior dirt is excessive Influence operating efficiency.
At work, by electric control gear starting device, gas sucks air inlet to the present invention by air compressor 210 after startup Pipeline A10, during which gas by air cleaner 250 filter and knockout drum 220 carry out liquid removal after after overcompression machine Cooler 510 is delivered to air accumulator 230 after cooling;Gas filters laggard by pressure piping A20 by accurate filter 400 afterwards Enter supercharging device to be pressurized, increasing supercharger 310 is provided with regulation pipeline A30, gas between two-stage pressurization machine, two-stage pressurization machine After one-level is pressurized, gaseous state is fed back to electric control gear by regulation pipeline A30, and gas is by adjusting during pipeline A30, But device 520 is cooled charge inter cooling with moisture trap 410 to gas and gas-water separation is handled, and is delivered the gas to afterwards defeated Exported after air pipe A40 detections;
The job step of equipment is in order:
The first step, performs in electric control gear and 1) sets initial parameter:It is usually 10-30 to set compressor start-up time delay Between second, preferably mode is 20 seconds, and the startup time of magnetic valve is set as that preferably mode is after start between 10-30 seconds 25 seconds, idle running limitation time K was generally between 10-120 seconds, and downtime T was generally between 10-20 seconds;Wherein electromagnetism It is 10-30 after start that the valve startup time, which includes compressor magnetic valve to start time YQ and supercharging device magnetic valve startup time ZQ, Between second;Idle running limitation time K is in 10-120 including compressor idle period YK and supercharging device idle period ZK Between second;The downtime T includes compressor shutdown countdown YT and supercharging device shuts down countdown ZT and is in 10-120 Between second, wherein the compressor shutdown time is earlier than the supercharging device downtime;Initial parameter, which is set, is afterwards once It can reset or be set for modification to current, it is necessary to change.
Second step, opens switch 2) starting device:Started by press is switched, and supercharging device is powered and operated, while compressor Start-up time delay starts countdown, and the compressor start time arrives, compressor start operating, is arrived while magnetic valve starts the time, Magnetic valve must be electrically turn off, and start gas-loaded operation;
3rd step, 3) supercharger loading and unloading:When supercharging device output pressure is more than supercharging device unloading pressure, it is Production safety, magnetic valve dead electricity simultaneously, supercharging device and compressor are unloaded simultaneously, and the limitation time of dallying starts inverse;In limit During idle period processed opens inverse, when supercharging device output pressure is less than supercharging device unloading pressure value, magnetic valve obtains electric simultaneously, Supercharging device and compressor recover load operations together;Now step 5) it is in same step, step 5) compressor loads and unloading: When Compressor Discharge Pressure is more than compressor unloading pressure value, for production safety, the unloading of compressor magnetic valve dead electricity is described Compressor dallies and enters idle running limitation time countdown, in countdown process, when Compressor Discharge Pressure is less than compressor During on-load pressure value, compressor magnetic valve obtains electric recovery loading;Step 3) and step 5) there is idle running to set, the two is in idle running By step step 6) idle running limitation:After the idle running limitation time terminates, final pressure at expulsion does not drop to supercharger on-load pressure When value is following, supercharging device and compressor shutdown, when final pressure at expulsion is less than below the on-load pressure value of supercharger, equipment Will be by step 2) start sequence starting.
4th step, is by step 7 in operation) processing equipment exception:Equipment state is in the temperature pre-warning value scope Automatic alarm but do not shut down then inside;Equipment state be in the antioverloading numerical value, the overpressure value, the shutdown pressure value and The shutdown temperature then equipment downtime;The equipment is by step 7) recover it is normal after equipment by by step 2) order of startup opens It is dynamic.
Final step, processed safely finishes rear steps performed 4) shut down:Halt switch is pressed, compressor magnetic valve dead electricity is unloaded Carry, compressor shutdown countdown starts timing;Supercharger magnetic valve dead electricity is unloaded after compressor shutdown, while supercharging device stops Machine countdown starts countdown, and supercharging device is worked on until supercharging device shutdown countdown terminates, i.e. completion is shut down.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's Principle, and limiting the scope of the invention can not be construed in any way.Based on explanation herein, the technology of this area Personnel, which would not require any inventive effort, can associate other embodiments of the present invention, and these modes are fallen within Within protection scope of the present invention.

Claims (3)

1. a kind of control method of oil-free compressor, it is characterised in that:Comprise the following steps:
1)Initial parameter is set:Set compressor start-up time delay Y, the startup time Q of magnetic valve, idle running limitation time K with And downtime T;Wherein the magnetic valve startup time includes compressor magnetic valve startup time YQ and supercharging device magnetic valve starts Time ZQ;Idle running limitation time K includes compressor idle period YK and supercharging device idle period ZK;The downtime T includes compressor shutdown countdown YT and supercharging device shuts down countdown ZT, wherein the compressor shutdown countdown is earlier than institute State supercharging device and shut down countdown;
2)Starting device:Started by press is switched, and supercharging device is powered and operated, while compressor start-up time delay starts to count When, the compressor start time arrives, compressor start operating, is arrived while magnetic valve starts the time, magnetic valve obtains electric, valve is closed, Start gas-loaded operation;
3)Supercharger loading and unloading:When supercharging device output pressure is more than supercharging device unloading pressure, for production safety, Magnetic valve is while dead electricity, valve, which is opened, is deflated, and supercharging device and compressor are unloaded, and the idle running limitation time starts inverse simultaneously; Dally during limitation time inverse, when supercharging device output pressure is less than supercharging device unloading pressure value, magnetic valve obtains electric simultaneously, Supercharging device and compressor recover load operations jointly;
4)Shut down:Halt switch is pressed, compressor magnetic valve dead electricity unloading, compressor shutdown countdown starts timing;Compressor Supercharger magnetic valve dead electricity is unloaded after shutdown, while supercharging device, which shuts down countdown, starts countdown, supercharging device continues work Make until supercharging device shutdown countdown terminates, i.e. completion is shut down.
2. the control method of compressor according to claim 1, it is characterised in that:The step 3)Also include step 5)Pressure Contracting machine loading and unloading:When Compressor Discharge Pressure is more than compressor unloading pressure value, for production safety, compressor electromagnetism Valve dead electricity is unloaded, and the compressor dallies and enters idle running limitation time countdown, in countdown process, works as compressor air-discharging When pressure is less than compressor loads pressure value, compressor magnetic valve obtains electric recovery loading;
Also include step 6)) idle running limitation:After the idle running limitation time terminates, final pressure at expulsion does not drop to supercharger loading pressure When below force value, supercharging device and compressor shutdown, when final pressure at expulsion is less than below the on-load pressure value of supercharger, if It is standby will be by step 2)The sequence starting of startup.
3. the control method of compressor according to claim 2, it is characterised in that:The step 1)Set in initial parameter Also include antioverloading numerical value, overpressure value, shut down pressure value, temperature pre-warning value and shutdown temperature, the compressor and the increasing Pressure device is equipped with the antioverloading numerical value, the overpressure value, the shutdown pressure value, the temperature pre-warning value and described stopped Machine temperature;
Also include step 7)Processing equipment is abnormal:Equipment state is in the range of the temperature pre-warning value then automatic alarm but not stopped Machine;
Equipment state is then set in the antioverloading numerical value, the overpressure value, the shutdown pressure value and the shutdown temperature It is standby to shut down;
The equipment passes through step 7)Recovering normal rear equipment will be by step 2)The sequence starting of startup.
CN201610329655.2A 2016-05-18 2016-05-18 A kind of oil-free compressor control method and its equipment CN106014944B (en)

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CN109083832A (en) * 2018-07-16 2018-12-25 滁州天陆泓机械有限公司 Compressor assembly and its control method
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