CN108726832A - The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID - Google Patents

The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID Download PDF

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Publication number
CN108726832A
CN108726832A CN201810556214.5A CN201810556214A CN108726832A CN 108726832 A CN108726832 A CN 108726832A CN 201810556214 A CN201810556214 A CN 201810556214A CN 108726832 A CN108726832 A CN 108726832A
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China
Prior art keywords
pyrolysis oven
differential pressure
pressure transmitter
surge tank
pid
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Pending
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CN201810556214.5A
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Chinese (zh)
Inventor
路学喜
李继凤
李海燕
王亚娟
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Daqing Development Zone Baishi Environment Protection Technology Development Co Ltd
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Daqing Development Zone Baishi Environment Protection Technology Development Co Ltd
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Priority to CN201810556214.5A priority Critical patent/CN108726832A/en
Publication of CN108726832A publication Critical patent/CN108726832A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/10Treatment of sludge; Devices therefor by pyrolysis
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B57/00Other carbonising or coking processes; Features of destructive distillation processes in general
    • C10B57/04Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition
    • C10B57/045Other carbonising or coking processes; Features of destructive distillation processes in general using charges of special composition containing mineral oils, bitumen, tar or the like or mixtures thereof
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00Control of fluid pressure
    • G05D16/20Control of fluid pressure characterised by the use of electric means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/40Valorisation of by-products of wastewater, sewage or sludge processing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention belongs to energy-saving environmental protection device technical fields, more particularly to it is a kind of by PID adjust constant pressure realize Energy Saving Control oily sludge object processing system, including nitrogen making machine, nitrogen gas tank, the first motor regulated valve, the second motor regulated valve, third motor regulated valve, the 4th motor regulated valve, the first pyrolysis oven, the second pyrolysis oven, the first differential pressure transmitter, the second differential pressure transmitter, third differential pressure transmitter, the 4th differential pressure transmitter, surge tank group, booster pump, fixed gas surge tank, motor switch valve and be equipped with PID controller.Oily sludge composition granule reacts in pyrolysis oven by high temperature anoxybiotic, and the organic matters phase transformation such as water, oil or polycyclic aromatic hydrocarbon vaporization is detached with solid, and solid phase residue uses closed dried slag removing technology.The incondensible gas of oil gas send to environmental protection in pyrolysis oven and flashes back by booster pump after voltage stabilizing.The system can reduce energy consumption, improve efficiency, reduce security risk, reliability service.

Description

The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID
Technical field
The invention belongs to energy-saving environmental protection device technical fields, and the energy saving control of constant pressure realization is adjusted by PID more particularly to a kind of The oily sludge object processing system of system.
Background technology
Oily sludge object is generated a kind of rich in mineral oil in oil exploration, exploitation, storage and transportation and refining process Solid-liquid mixes class waste.No matter oily sludge object enters soil also or ocean, lake, all can be to ecological environment or water source It causes seriously to pollute, urgent need obtains effective and sustainable improvement.Wherein pyrolyzing sludge is worldwide implemented, at present Have that operation interval is discontinuous, efficiency is low, security risk is high, high energy consumption, system operation are unstable containing pollutant disposal system The defects of determining.So a kind of efficient, energy conservation and environmental protection of design, safe and reliable oily sludge object processing system are very necessary 's.
Invention content
The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID the object of the present invention is to provide a kind of System, the system can reduce energy consumption, improve efficiency, reduce security risk, system can continuous reliability service, energy-efficient, peace It is complete reliable, it realizes the ultra-clean processing of oily sludge object, can promote and use on a large scale.
The technical solution adopted by the present invention is:It is a kind of to be realized at the oily sludge object of Energy Saving Control by PID adjusting constant pressures Reason system, including nitrogen making machine, nitrogen gas tank, the first motor regulated valve, the second motor regulated valve, third motor regulated valve, 4th motor regulated valve, the first pyrolysis oven, the second pyrolysis oven, the first differential pressure transmitter, the second differential pressure transmitter, third It differential pressure transmitter, the 4th differential pressure transmitter, surge tank group, booster pump, fixed gas surge tank, motor switch valve and is equipped with PID controller;The nitrogen making machine is connect by pipeline with nitrogen gas tank, and nitrogen gas tank is pyrolyzed by pipeline and the first pyrolysis oven and second Stove connects, and the first pyrolysis oven and the second pyrolysis oven are connect by pipeline with surge tank group, and surge tank group passes through pipeline and fixed gas Surge tank connects, and fixed gas surge tank is connect by pipeline with the first pyrolysis oven and the second pyrolysis oven;Nitrogen gas tank and the first pyrolysis On pipeline between stove, nitrogen gas tank and the second pyrolysis oven, the first pyrolysis oven and surge tank group and the second pyrolysis oven and surge tank group It is separately installed with the first motor regulated valve, the second motor regulated valve, third motor regulated valve and the 4th electric control valve Door;Pipeline between first pyrolysis oven and surge tank group, the second pyrolysis oven and surge tank group is separately installed with the first elementary errors buckling Send device and the second differential pressure transmitter;It is separately installed with third differential pressure transmitter on the surge tank group and fixed gas surge tank With the 4th differential pressure transmitter, motor switch valve is installed on the exhaust pipe of fixed gas surge tank;The first elementary errors buckling Send device, the second differential pressure transmitter, third differential pressure transmitter and the 4th differential pressure transmitter respectively by conducting wire and PID control Device connects, and PID controller passes through conducting wire and the first motor regulated valve, the second motor regulated valve, third motorized adjustment respectively Valve, the 4th motor regulated valve, booster pump and the connection of motor switch valve.
Further, the PID controller is set in control centre.
Further, the PID controller is connected by the frequency converter of conducting wire and booster pump.
Beneficial effects of the present invention:Provide it is a kind of by PID adjust constant pressure realize Energy Saving Control oily sludge object at Reason system, the system can reduce energy consumption, improve efficiency, reduce security risk, system can continuous reliability service, efficiently save Can, securely and reliably, realizes the ultra-clean processing of oily sludge object, can promote and use on a large scale.Major advantage is as follows:
(1), this system can realize continuous feeding and discharging, oil recovery rate is higher, and deslagging works well, and improves treatment effeciency, reduce Labor intensity, it is applied widely to oily sludge object without strict demand, meet energy-saving and environment-friendly requirement.
(2), this system using high temperature anoxybiotic run, improve overall operation safety.
(3), this system fixed gas is recycled, as fuel reuse, saved fuel, improved the level of resources utilization, reduced System operation cost realizes material product recycling, Harmless and Comprehensive Disposal technique
(4), this system treated solid phase residue use closed dried slag removing technology, realize the clean emission of residue.
(5), this system bias adjustment is carried out to entire control system by PID controller, not only have more flexible Modulating properties, and energy-saving purpose can also be played.Frequency-changing pressure stabilizing system can ensure that motor is in optimized operation operating mode, The performance of high-efficiency and economic operation is obtained, while also keeping the dynamic equilibrium of system, system operation is made more to stablize, it is more energy saving.
Description of the drawings:
Fig. 1 is the schematic diagram of the present invention;
Fig. 2 is PID control schematic diagram in embodiment;
Fig. 3 is pid control mode schematic diagram in embodiment.
Specific implementation mode:
Embodiment one
Referring to Fig.1-3, a kind of to adjust the oily sludge object processing system that constant pressure realizes Energy Saving Control, including nitrogen making machine by PID 1, nitrogen gas tank 2, the first motor regulated valve 3, the second motor regulated valve 4, third motor regulated valve 9, the 4th motorized adjustment Valve 10, the first pyrolysis oven 5, the second pyrolysis oven 6, the first differential pressure transmitter 7, the second differential pressure transmitter 8, third differential pressure Transmitter 11, the 4th differential pressure transmitter 15, surge tank group 12, booster pump 13, fixed gas surge tank 14, motor switch valve 16 And it is equipped with PID controller 17;The nitrogen making machine 1 is connect by pipeline with nitrogen gas tank 2, and nitrogen gas tank 2 is pyrolyzed by pipeline and first Stove 5 and the connection of the second pyrolysis oven 6, the first pyrolysis oven 5 and the second pyrolysis oven 6 are connect by pipeline with surge tank group 12, surge tank Group 12 is connect by pipeline with fixed gas surge tank 14, and fixed gas surge tank 14 passes through pipeline and the first pyrolysis oven 5 and the second heat Stove 6 is solved to connect;Nitrogen gas tank 2 and the first pyrolysis oven 5, nitrogen gas tank 2 and the second pyrolysis oven 6, the first pyrolysis oven 5 and surge tank group 12 and The first motor regulated valve 3, the second electric control valve are separately installed on pipeline between second pyrolysis oven 6 and surge tank group 12 Door 4, third motor regulated valve 9 and the 4th motor regulated valve 10;First pyrolysis oven 5 and surge tank group 12, the second pyrolysis oven 6 Pipeline between surge tank group 12 is separately installed with the first differential pressure transmitter 7 and the second differential pressure transmitter 8;The buffering It is separately installed with third differential pressure transmitter 11 and the 4th differential pressure transmitter 15 on tank group 12 and fixed gas surge tank 14, is not coagulated Motor switch valve 16 is installed on the exhaust pipe of gas surge tank 14;First differential pressure transmitter 7, the second differential pressure pick-up Device 8, third differential pressure transmitter 11 and the 4th differential pressure transmitter 15 are connect by conducting wire with PID controller 17 respectively, PID controls Device 17 processed passes through conducting wire and the first motor regulated valve 3, the second motor regulated valve 4, third motor regulated valve 9, respectively Four motor regulated valves 10, booster pump 13 and motor switch valve 16 connect;The PID controller 17 is set to control centre It is interior;The PID controller 17 is connect by conducting wire with the frequency converter of booster pump 13.
This system realizes the pyrolysis separating process of continuous feeding and discharging high temperature anoxybiotic, does high temperature anoxybiotic using nitrogen and protects Hold the pressure balance of system.Nitrogen making machine is obtained the nitrogen of high-purity using physical method for separation, is stored in nitrogen using air as raw material In gas tank, and ensure that nitrogen pressure inside the tank is 0.4MPa.Oily sludge composition granule passes through in the first pyrolysis oven and the second pyrolysis oven 400 DEG C~700 DEG C high temperature anoxybiotic reactions are crossed, the heavy constituent of crude oil is converted into light component and then phase transformation vaporization, water, oil or polycyclic virtue The organic matters phase transformation such as hydrocarbon vaporizes, and is detached with solid, forms oil gas, heat exchanger, separator and buffering of the oil gas Jing Guo surge tank group Tank etc. is delivered to transportation tank car outward transport recycling by output pump.Solid phase residue uses closed dried slag removing technology, realizes the clean of residue Net discharge, solid phase residue reaches national disposal of oily sludge standard after desorption processing, realizes ultra-clean processing, and oil gas is condensed, divides Transportation tank car outward transport recycling is delivered to by output pump based on petrol and diesel oil, paraffin hydrocarbon, water from liquid phase after processing.Oil gas cannot condense Gas send to environmental protection in the first pyrolysis oven and the second pyrolysis oven and flash back, no by booster pump after fixed gas surge tank voltage stabilizing Solidifying gas improves the utilization ratio of resource, reduces system operation cost as main fuel reuse.
First pyrolysis oven pyrolysis oven and the second pyrolysis oven into being mounted with respectively on nitrogen pipeline and oil gas vent pipeline First motor regulated valve, the second motor regulated valve, third motor regulated valve and the 4th motor regulated valve;Pyrolysis oven into The motor regulated valve of gas pipeline controls the motorized adjustment of pyrolysis oven air inlet according to the oil gas vent pressure of pyrolysis outlet of still Valve is opened when oil gas vent pressure is less than 0Pa, is closed when higher than 30Pa, ensures to be desorbed in anoxybiotic in pyrolysis oven.Pyrolysis The motor regulated valve of furnace oil gas outlet line installation controls pyrolysis oven oil gas according to the oil gas vent pressure of pyrolysis outlet of still The motor regulated valve of outlet adjusts oil gas vent pressure between 0Pa-100Pa by PID.
Differential pressure transmitter is installed in surge tank group, the frequency of booster pump is adjusted by PID, pressure inside the tank control will be buffered System is between -50Pa to+30Pa;Differential pressure transmitter is installed on fixed gas surge tank, tank deck is buffered by chain fixed gas Superpressure emergency blow-down motor switch valve, ensure pressure inside the tank<6KPa .PID controller is located in control centre, according to PID Control principle carries out bias adjustment to entire control system, to keep the actual value of controlled variable consistent with predetermined value.By elementary errors Pressure transmitter, motor regulated valve not only have more with the constant-voltage system that control centre's built-in PID frequency converter is combined composition Flexible modulating properties, and energy-saving purpose can also be played.PID controller by differential pressure transmitter acquisition come pressure The frequency of force signal, the aperture and booster pump frequency converter for carrying out balance electric control valve, and then adjust input quantity and the increasing of nitrogen The frequency of press pump input power reaches the dynamic equilibrium that control motor speed realizes pyrolysis furnace pressure.Entire constant-voltage system exists In the course of work, it is practical that internal system is obtained by the first differential pressure transmitter and the second differential pressure transmitter that are pyrolyzed outlet of still Pressure signal, and by this signal transmission to frequency conversion speed-adjusting system, using frequency converter internal PID signal conditioner by actual pressure Signal is compared operation with preset pressure signal, forms instantaneous difference on the frequency, directly adjusts the input quantity and booster pump of nitrogen The frequency of input power reaches the dynamic equilibrium that control motor speed realizes pyrolysis furnace pressure.Frequency-changing pressure stabilizing system can be protected Card motor is in optimized operation operating mode, obtains the performance of high-efficiency and economic operation, while also keeping the dynamic equilibrium of system, makes system Operation is more stablized, more energy saving.The control mode of PID controller is set as to the PID control method of Fuzzy self- turning, is obtained Dynamic response is fast, and overshoot is small, and system pressure control is made to stablize.

Claims (8)

1. a kind of adjusting the oily sludge object processing system that constant pressure realizes Energy Saving Control by PID, it is characterised in that:Including nitrogen processed Machine(1), nitrogen gas tank(2), the first motor regulated valve(3), the second motor regulated valve(4), third motor regulated valve(9), 4th motor regulated valve(10), the first pyrolysis oven(5), the second pyrolysis oven(6), the first differential pressure transmitter(7), the second elementary errors Pressure transmitter(8), third differential pressure transmitter(11), the 4th differential pressure transmitter(15), surge tank group(12), booster pump (13), fixed gas surge tank(14), motor switch valve(16)And it is equipped with PID controller(17);The nitrogen making machine(1)Pass through pipe Line and nitrogen gas tank(2)Connection, nitrogen gas tank(2)Pass through pipeline and the first pyrolysis oven(5)With the second pyrolysis oven(6)Connection, the first heat Solve stove(5)With the second pyrolysis oven(6)Pass through pipeline and surge tank group(12)Connection, surge tank group(12)Pass through pipeline and fixed gas Surge tank(14)Connection, fixed gas surge tank(14)Pass through pipeline and the first pyrolysis oven(5)With the second pyrolysis oven(6)Connection.
2. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:First motor regulated valve(3), the second motor regulated valve(4), third motor regulated valve(9)With 4th motor regulated valve(10)It is separately mounted to nitrogen gas tank(2)With the first pyrolysis oven(5), nitrogen gas tank(2)With the second pyrolysis oven (6), the first pyrolysis oven(5)With surge tank group(12)And second pyrolysis oven(6)With surge tank group(12)Between pipeline on.
3. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:First differential pressure transmitter(7)With the second differential pressure transmitter(8)It is separately mounted to the first pyrolysis oven (5)With surge tank group(12), the second pyrolysis oven(6)With surge tank group(12)Between pipeline on.
4. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:The third differential pressure transmitter(11)With the 4th differential pressure transmitter(15)It is separately mounted to surge tank group (12)With fixed gas surge tank(14)On.
5. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:The motor switch valve(16)Mounted on fixed gas surge tank(14)Exhaust pipe on.
6. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:First differential pressure transmitter(7), the second differential pressure transmitter(8), third differential pressure transmitter(11)With 4th differential pressure transmitter(15)Pass through conducting wire and PID controller respectively(17)Connection, PID controller(17)Pass through conducting wire respectively With the first motor regulated valve(3), the second motor regulated valve(4), third motor regulated valve(9), the 4th electric control valve Door(10), booster pump(13)And motor switch valve(16)Connection.
7. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:The PID controller(17)It is set in control centre.
8. a kind of oily sludge object processing system adjusting constant pressure realization Energy Saving Control by PID according to claim 1, It is characterized in that:The PID controller(17)Pass through conducting wire and booster pump(13)Frequency converter connection.
CN201810556214.5A 2018-06-01 2018-06-01 The oily sludge object processing system that constant pressure realizes Energy Saving Control is adjusted by PID Pending CN108726832A (en)

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