CN201650736U - Desulfurization tower air supply roots blower automatic control device - Google Patents
Desulfurization tower air supply roots blower automatic control device Download PDFInfo
- Publication number
- CN201650736U CN201650736U CN2010201363743U CN201020136374U CN201650736U CN 201650736 U CN201650736 U CN 201650736U CN 2010201363743 U CN2010201363743 U CN 2010201363743U CN 201020136374 U CN201020136374 U CN 201020136374U CN 201650736 U CN201650736 U CN 201650736U
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- China
- Prior art keywords
- roots blower
- motor
- control device
- desulfurization tower
- air
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- Expired - Fee Related
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
A desulfurization tower air supply roots blower automatic control device relates to a chemical roots blower control device, and comprises a roots blower air outlet communicated with a desulfurization tower duct, and a roots blower consists of a seat, a motor, a coupling, a housing, an air rotor, an air inlet and the air outlet. The control device is characterized in that an air pressure sensor is mounted on the air outlet of the roots blower, the motor of the roots blower is an inner feedback chopping motor with an inner feedback chopping control cabinet, and an additional central processor unit DCS is respectively connected with the air pressure sensor and the inner feedback chopping control cabinet through lines. The desulfurization tower air supply roots blower automatic control device has the advantages that use of the adjustable-speed inner feedback chopping motor and the blower outlet pressure sensor respectively with the central processor unit DCS realizes automatic speed regulation of the roots blower, accordingly working condition of a desulfurization tower can be stabilized, and the motor is fine in speed regulation performance and in energy conservation effect.
Description
Technical field:
The utility model relates to chemical industry roots blower control gear, is specially adapted to the automatic adjusting control mode of desulfurization semi-water gas at the roots blower outlet pressure.
Background technique:
The task of the preposition roots blower of desulfurizing tower is that the semi-water gas gas from the gas making operation is suitably pressurizeed, and reaches to be transported to the later process desulfurizing tower behind the required relevant pressure and to carry out desulfurization.For the working pressure that guarantees to enter desulfurizing tower reaches the requirement of explained hereafter, the by-pass air-door actuator of drawing of must be often in control roots blower being imported and exported pipe be regulated air quantity manually.And this adjusting is subjected to the influence of gas consumption in stable and operation compression post, back of makings, gas production of the place ahead gas making very big, and to drawing the frequent real-time adjusting of by-pass, such operation amount is big and coarse, can't quantitatively accurately hold control, and to stare at index value at any time, have slightly and regulate the fluctuation that deviation will cause production.
The preposition roots blower of desulfurizing tower is made up of support, asynchronous motor, coupling, case shell, intake grill, exhaust outlet, a pair of curved surface wind rotor, rotated by a pair of wind rotor shaft that coupling drives in the case shell by asynchronous motor, it is distinguished and admirable that a pair of wind rotor curved surface is oppressed empty wind flow generation high pressure.Desulfurizing tower demand high-pressure blowing-in, thereby must adopt roots blower, and the roots blower asynchronous motor can only be permanent rotating speed, constant force square will be regulated airflow pressure and can only use exhaust outlet to draw the by-pass air-door actuator to carry out bypass and regulate.
The speed adjusting technique of feedback copped wave motor is that lead-in wire is connected in series with interior feedback copped wave control cabinet on rotor in existing, is connected in series with stator by the copped wave control cabinet again.Working principle is: interior feedback chopping regulating speed motor be in the inner special setting of high-voltage motor (6000V) interior feedback winding, purpose is to receive the electric slip power that shifts out from rotor.Interior feedback winding is in generating state, has offset the equivalent input power of staor winding, thereby has realized the high efficiency energy-saving run of motor.During motor speed-regulating, the part power of rotor is by feedback winding in the electrical conduction feed-in, if ignore loss, the interior feedback power that winding obtained equates with the power that rotor is moved out of, because the part power of rotor is moved out of, so the mechanical output that transforms reduces so motor speed decline; Otherwise it is then opposite.It is to use low pressure (400V) control high pressure technique, and power electric component all adopts low-voltage component, and is less demanding to power electric component.Be applied on the high-voltage motor speed-governing of larger capacity, it is few to generate this increase, and speed adjustable range is generally 50～100.Require speed adjustable range can reach 30～100% under special circumstances, the corresponding increase of cost certainly.
This kind motor does not become in the nested structure to use at desulfurizing tower at present as yet.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned defective, and a kind of desulfurizing tower air-supply roots blower automatic controller is provided.
Scheme of the present utility model is: on the roots blower exhaust outlet wind pressure sensor is installed, the motor of roots blower is the interior feedback copped wave motor of feedback copped wave control cabinet in having, and the central processing unit (CPU) DCS that sets up realizes that with wind pressure sensor, interior feedback copped wave control cabinet circuit is connected respectively.
Advantage of the present utility model is: the interior feedback copped wave motor of variable-speed and blower fan outlet pressure sensor respectively with the supporting coupling of central processing unit (CPU) DCS, realized roots blower automatic speed regulation, the desulfurizing tower operating mode is stablized, simultaneously this kind motor speed-regulating performance and good energy-conserving effect.
Description of drawings:
Accompanying drawing is the utility model structural representation.
Embodiment:
Structure of the present utility model comprises that roots blower (6) exhaust outlet is communicated with desulfurizing tower (5) pipeline, roots blower (6) is made up of support, motor, coupling, case shell, wind rotor, intake grill, exhaust outlet, it is characterized in that: on roots blower (6) exhaust outlet, wind pressure sensor (4) is installed, the motor of roots blower (6) is the interior feedback copped wave motor (1) of feedback copped wave control cabinet (2) in having, and the central processing unit (CPU) DCS (3) that sets up realizes that with wind pressure sensor (4), interior feedback copped wave control cabinet (2) circuit is connected respectively.
Because the service behaviour of Roots blower is different with the service behaviour of ordinary blower, so be permanent interior feedback copped wave high-voltage motor that changes distance of Roots blower customization specially, interior feedback copped wave high-voltage motor is controlled it by supporting low-voltage power distributing cabinet (2), interior feedback copped wave control cabinet (2) body and cover control operation system and a man-machine interface controller can internally be presented copped wave motor (1) by control and operate.But for the real-time monitoring of operator and the realization of operation and pressure self-adjusting function, from interior feedback copped wave control cabinet (2), draw a cover control system especially to central processing unit (CPU) DCS (3) system, by central processing unit (CPU) DCS (3) system it is monitored and operates, central processing unit (CPU) DCS (3) also makes corresponding interface display in the interface, but real time reaction goes out the runnability of motor.
Feedback arrangements for speed regulation also can be cut into full speed running automatically in this when breaking down, and can guarantee that motor moves (not playing the speed governing effect) continuously, and unlikely equipment operation interrupts, and reliability is higher.
Interior feedback copped wave control system is used for the control operation of copped wave motor (1);
Pressure transmitter is used for the detection of inlet/outlet pressure of gas pipe line and the transmission of signal;
Central processing unit (CPU) DCS (3) system Eurotherm 2550 these systems comprise:
Be used for the reception of pressure signal;
Be used for the reception of motor speed signal;
The monitoring of feedback arrangements for speed regulation running state in being used for;
Be used to regulate the output of data-signal specified rate;
Be used for data relatively.
Desulfurization Roots machine Import Gas pressure is about 1300pa, and Roots's machine outlet pressure requires between 45～49Kp.Roots's machine inlet pipes is installed one group of pressure transmitter, the real-time pressure signal is reached demonstrate its numerical value in the DES system in man-machine interface; One group of pressure transmitter is installed at Roots's machine outer pipe place, the real-time pressure signal is also reached demonstrate its numerical value in the DES system in man-machine interface.The stable of inlet pressure is responsible for by preceding operation.This post only needs Roots's machine outlet pressure is monitored, and when pressure was in the technological requirement data, operator only monitored and need not operate it; When the pressure critical technological requirement data upper limit or lower limit, operator only need to regulate the given numerical value of data on the DES interface, and this operation is not only simply but also quick on central processing unit (CPU) DCS (3) interface.Central processing unit (CPU) DCS (3) system sends corresponding speed-regulating signal to interior feedback copped wave control system after receiving regulating command, and interior feedback chopper system can carry out speed governing to copped wave motor (1), by adjusting to motor speed, it is the speed of Roots's machine rotating speed, its working pressure is raise or reduction, thereby reach the control of Roots's machine outlet pressure.This is the manual tune mode.(the fingering mouth pressure is when air inflow is stablized) can adopt the self-regulation mode when coal gas system work is more stable, and the self-regulated mode only needs manual on central processing unit (CPU) DCS (3) operation interface to click switching to get final product.The self-regulated mode promptly in central processing unit (CPU) DCS (3) system the upper and lower bound data to Roots's machine outlet pressure lock, the data-signal that Roots's machine outlet pressure detects is directly reached in this central processing unit (CPU) DCS (3) system by wind pressure sensor (4), by central processing unit (CPU) DCS (3) system database its collection is compared with locking data, and need to judge whether internal feedback copped wave motor (1) to carry out speed governing, to realize in Roots's machine outlet pressure process for stabilizing index.
Claims (1)
1. desulfurizing tower air-supply roots blower automatic controller, comprise that roots blower (6) exhaust outlet is communicated with desulfurizing tower (5) pipeline, roots blower (6) is made up of support, motor, coupling, case shell, wind rotor, intake grill, exhaust outlet, it is characterized in that: on roots blower (6) exhaust outlet, wind pressure sensor (4) is installed, the motor of roots blower (6) is the interior feedback copped wave motor (1) of feedback copped wave control cabinet (2) in having, and the central processing unit (CPU) DCS (3) that sets up realizes that with wind pressure sensor (4), interior feedback copped wave control cabinet (2) circuit is connected respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363743U CN201650736U (en) | 2010-03-19 | 2010-03-19 | Desulfurization tower air supply roots blower automatic control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201363743U CN201650736U (en) | 2010-03-19 | 2010-03-19 | Desulfurization tower air supply roots blower automatic control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650736U true CN201650736U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201363743U Expired - Fee Related CN201650736U (en) | 2010-03-19 | 2010-03-19 | Desulfurization tower air supply roots blower automatic control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026713A (en) * | 2018-07-23 | 2018-12-18 | 山东金沂蒙生态肥业有限公司 | Synthesis ammonia roots blower superpressure self-regulated equipment based on safety and environmental protection |
-
2010
- 2010-03-19 CN CN2010201363743U patent/CN201650736U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026713A (en) * | 2018-07-23 | 2018-12-18 | 山东金沂蒙生态肥业有限公司 | Synthesis ammonia roots blower superpressure self-regulated equipment based on safety and environmental protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20170319 |