CN115646911A - Off-line cleaning system for gas compressor - Google Patents
Off-line cleaning system for gas compressor Download PDFInfo
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- CN115646911A CN115646911A CN202211352301.1A CN202211352301A CN115646911A CN 115646911 A CN115646911 A CN 115646911A CN 202211352301 A CN202211352301 A CN 202211352301A CN 115646911 A CN115646911 A CN 115646911A
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Abstract
The invention relates to an off-line cleaning system for a gas compressor, which comprises a state confirmation module, a cleaning module, a liquid adding module, a liquid storage module and a controller, wherein the state confirmation module is used for confirming the state of the gas compressor; based on the existing software programming and certain hardware transformation, the invention integrates the independent disk surface operation tasks of the off-line cleaning of the air compressor into sequential control, and performs time efficiency matching on the execution time of the sequential control program and the dosage of the in-situ cleaning fluid, thereby realizing the optimized off-line cleaning process of the air compressor. Compared with the prior art, the automatic control system has the advantages of high automation degree, simplicity and convenience in operation, low labor cost and the like.
Description
Technical Field
The invention relates to the technical field of compressor equipment, in particular to an off-line cleaning system for a compressor.
Background
The compressor is one of the important components of the gas turbine, and the main function of the compressor is to provide pressurized clean air for the gas turbine. Although the air sucked by the compressor is filtered by the filtering system in the environment with long-term operation or high air pollution degree, dust and micro-particles in the air are easy to accumulate on the moving blades of the compressor and form salt. Excessive scale deposition or salt corrosion can change the movable blade flow channel of the compressor, reduce the compression ratio and the working efficiency of the compressor and even destroy the dynamic balance of the blades of the compressor. To cope with this, the compressor should be cleaned periodically. The cleaning mode comprises two modes, off-line cleaning is used under the condition of larger pollution degree, and on-line cleaning is used under the condition of general pollution degree.
The whole off-line cleaning process of the compressor at least needs the cooperation of a panel operator and a local operator, and the off-line cleaning method has the following defects:
1) The panel operator needs to manually confirm each condition of the compressor before off-line cleaning, manually execute the cleaning program and confirm each intermediate state and the relevant system after the manual re-service cleaning is finished.
2) The on-site operator needs to manually start and stop, replenish the demineralized water for cleaning and manually switch the flushing nozzles according to the instructions of the panel operator. In addition, these on-site locations are distributed remotely and on-site operators need to travel to and from them.
3) An operator on the panel needs to reserve the operation time of the operator on the spot, so that the situation that the cleaning liquid of the compressor is not completely added after the off-line cleaning program is executed is avoided.
4) When the liquid level of the compressor washing tank is too low, an operator needs to reserve a certain time to replenish clean water to a certain liquid level in time on the spot, and the phenomenon that the pump is emptied when the compressor is washed by clean water is avoided.
In summary, the existing offline cleaning procedure for the compressor has the defects of low automation degree, high labor cost, complex operation and the like.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an air compressor off-line cleaning system, which integrates the operation tasks of the independent disk surfaces of the air compressor off-line cleaning into a sequence control task, and performs time-efficiency matching on the execution time of a sequence control program and the dosing amount of a local cleaning liquid, thereby realizing the optimized off-line cleaning process.
The purpose of the invention can be realized by the following technical scheme:
an off-line cleaning system for a gas compressor comprises a state confirmation module, a cleaning module, a liquid adding module, a liquid storage module and a controller;
the cleaning module comprises a water washing tank, and the water washing tank is connected with a cleaning part through a main connecting pipe;
the cleaning module, the liquid adding module and the liquid storage module are sequentially connected;
the liquid adding module is connected with the controller;
and the state confirmation module is respectively connected with the air compressor and the controller.
Further, a first sensor and a second sensor are arranged on the washing tank;
the controller is respectively connected with the first sensor and the second sensor;
the first sensor is arranged at the upper part of the washing tank and is used for detecting the high liquid level of the washing tank;
the second sensor is arranged at the lower part of the washing tank and is used for detecting the low liquid level of the washing tank;
the controller is also connected with a high liquid level switch and a low liquid level switch respectively.
Further, the cleaning component comprises a cleaning nozzle which comprises a jet nozzle and an atomizing nozzle.
Further, the cleaning component comprises a nozzle switching electromagnetic valve, and the nozzle switching electromagnetic valve is connected with the controller;
the nozzle switching electromagnetic valve comprises a liquid inlet and a plurality of liquid outlets;
the liquid inlet is connected with a main connecting pipe, and the other end of the main connecting pipe is connected with a washing tank;
the liquid outlets are connected with secondary connecting pipes, and each secondary connecting pipe is connected with different cleaning nozzles respectively.
Further, the cleaning module comprises a jet pump, an inlet of the jet pump is connected with the water washing tank, and an outlet of the jet pump is connected with the main connecting pipe.
Further, the liquid storage module comprises a medicine storage box and a desalting water storage box;
the medicine storage box is connected with the washing box through a first connecting pipe;
the brine storage and removal tank is connected with the water washing tank through a second connecting pipe.
Further, the liquid adding module comprises a dosing electromagnetic valve; the dosing electromagnetic valve is installed on the first connecting pipe and connected with the controller.
Further, the liquid feeding module includes the moisturizing solenoid valve, the moisturizing solenoid valve is installed on the second connecting pipe, the moisturizing solenoid valve links to each other with the controller.
Further, the state confirmation module comprises a processor and a plurality of detection devices, and the detection devices are used for detecting state parameters of the compressor.
Furthermore, the system also comprises a timer and an alarm module, wherein the alarm module and the timer are respectively connected with the controller.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention controls the cleaning process of the whole air compressor through the state confirmation module and the controller, realizes the program automation of the off-line cleaning of the air compressor through the sequential control, optimizes the whole operation process, has simple and convenient operation in the cleaning process and high automation degree, and realizes the optimal off-line cleaning effect of the air compressor.
2. The invention controls the whole process of off-line cleaning of the compressor through the controller, reduces the daily workload of panel personnel and on-site operators, avoids misoperation of personnel and reduces the labor cost.
3. The invention is based on the existing software programming and certain hardware transformation, and has controllable design cost and manufacturing cost and high practicability.
Drawings
FIG. 1 is a logic diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
As shown in fig. 1, the system for offline cleaning of a gas compressor provided in this embodiment includes a state confirmation module, a cleaning module, a liquid adding module, a liquid storage module, and a controller; the cleaning module comprises a water washing tank, and the water washing tank is connected with a cleaning part through a main connecting pipe; the cleaning module, the liquid adding module and the liquid storage module are sequentially connected; the liquid adding module is connected with the controller; the state confirmation module is respectively connected with the air compressor and the controller.
The state confirmation module is respectively connected with the compressor and the controller, and is provided with a processor and a plurality of detection devices; the detection device comprises a device for detecting temperature, a device for detecting a baffle switch, a device for detecting the working time of the compressor and other various commonly used devices for detecting the state parameters of the compressor. Or a singlechip, a microprocessor and the like are used, and whether the actual state parameters of the gas compressor meet the cleaning conditions of the gas compressor is verified through a comparison circuit, a logic judgment circuit and other digital circuits.
Meanwhile, the system also comprises an alarm module, wherein the conditions of accidental interruption, program alarm, monitoring of the rotating speed of the large shaft and the like are considered during program design, the working condition is monitored by the state confirmation module, if the working is abnormal, the program is triggered to report errors, the alarm module is used for alarming, and the corresponding program is interrupted; in specific implementation, devices such as an audible and visual alarm and the like can be adopted for alarming.
The cleaning module, the liquid adding module and the liquid storage module are sequentially connected;
the cleaning module comprises a water washing tank, and a first sensor and a second sensor are arranged on the water washing tank; the controller is respectively connected with the first sensor and the second sensor; the first sensor is arranged on the side surface of the upper part of the washing tank and used for detecting the high liquid level of the washing tank; the second sensor is arranged on the side surface of the lower part of the water washing tank and used for detecting the low liquid level of the water washing tank; the controller is also connected with a high liquid level switch and a low liquid level switch respectively. A high liquid level switch is arranged for preventing the overflow of the washing tank, and a low liquid level switch is arranged for preventing the pump from being emptied.
When the washing machine works specifically, if the second sensor detects that liquid is contacted, namely liquid in the washing water tank reaches a preset low liquid level, the second sensor sends a detection signal to the controller, and the controller controls the low liquid level switch to output a low level signal and starts the liquid conveying function of the washing water tank; if the second sensor can not detect the liquid contact, namely the liquid in the washing tank is lower than the low liquid level, the second sensor sends a detection signal to the controller, the controller controls the low liquid level switch to output a high level signal, the liquid conveying function of the washing tank is closed, the water inlet function of the washing tank is simultaneously opened, and the water replenishing electromagnetic valve is opened to replenish demineralized water. If the first sensor detects that the liquid is contacted, namely the liquid reaches a high liquid level, the first sensor sends a detection signal to the controller, and the controller controls the high liquid level switch to output a high level signal and closes the water inlet function of the water washing tank;
the washing tank is connected with a washing part through a main connecting pipe; the cleaning component comprises a nozzle switching electromagnetic valve, and the nozzle switching electromagnetic valve is connected with the controller; the nozzle switching electromagnetic valve comprises a liquid inlet and a plurality of liquid outlets; the liquid inlet is connected with a main connecting pipe, and the other end of the main connecting pipe is connected with a washing tank; the secondary connecting pipes are installed at the plurality of liquid outlets and are respectively connected with different cleaning nozzles.
In this embodiment, the cleaning nozzle includes a jet nozzle and an atomizing nozzle;
in this embodiment, the nozzle-switching solenoid valve is provided with two liquid outlets, namely a first liquid outlet and a second liquid outlet, and in other embodiments, different numbers of liquid outlets can be arranged according to different requirements;
the jet nozzle is connected with the first liquid outlet through a connecting pipe, and the atomizing nozzle is connected with the second liquid outlet through a connecting pipe; the valve corresponding to the first liquid outlet is marked as a jet nozzle water inlet valve, and the valve corresponding to the second liquid outlet is marked as an atomizing nozzle electromagnetic valve.
When the jet flow nozzle and the atomizing nozzle are in specific work, the jet flow nozzle and the atomizing nozzle are respectively inserted into a cleaning liquid inlet of the air compressor, and the controller controls the movement of a valve body in the nozzle electromagnetic valve to open or close different cleaning nozzles.
Be equipped with the jet pump on the washing case, in this embodiment, link to each other with the controller after the jet pump is connected a relay, realize adding the break-make of medicine solenoid valve through controller switch-on or disconnection relay to the transport of liquid in the control washing case. The water washing tank is also provided with a discharge valve and an air discharge valve, the discharge valve is connected to the trench through a hose and used for discharging redundant liquid in the water washing tank, and the air discharge valve is used for discharging redundant gas.
The liquid storage module comprises a medicine storage box and a desalting water storage box; the medicine storage box is connected with the washing box through a first connecting pipe; the brine storage and removal tank is connected with the water washing tank through a second connecting pipe. The medicine storage box is used for storing washing liquid medicine, and the desalting water storage box is used for storing desalting water.
The liquid feeding module comprises a dosing electromagnetic valve, the dosing electromagnetic valve is installed on the first connecting pipe, and the dosing electromagnetic valve is connected with the controller. The controller controls the delivery of the washing liquid in the medicine storage tank through the dosing electromagnetic valve, and the washing liquid is delivered to the washing tank when the dosing electromagnetic valve is switched on.
The liquid feeding module further comprises a water replenishing electromagnetic valve, the water replenishing electromagnetic valve is installed on the second connecting pipe and connected with the controller, the switch of the water replenishing electromagnetic valve is controlled through the controller to control the conveying of liquid in the desalted water storage tank, and when the water replenishing electromagnetic valve is switched on, the desalted water is conveyed to the washing tank.
In this embodiment, the system includes a timer, and the timer is connected to the controller, and calculates the time to be delayed for specific implementation by the timer.
In this embodiment, the controller is used to control the compressor offline cleaning system based on the siemens T3000 system. The Siemens T3000 system is used as operation software of a distributed control system of a unit set, the software system has certain programming openness, operation tasks of independent disk surfaces of the air compressor for off-line cleaning can be integrated into sequential control through programming, and the execution time of the sequential control program is matched with the dosing amount of in-situ cleaning liquid in an aging mode, so that the optimized off-line cleaning process is realized.
In this embodiment, the air compressor offline cleaning system provided by the present invention is specifically used based on a siemens T3000 system, and includes the following steps:
1. state confirmation module confirms preparation work before cleaning of compressor
The method comprises the following steps of determining the state of the gas compressor by combining gas compressor data measured by a plurality of sensors and detection devices through an application program arranged in a state determination module, and judging whether the gas compressor meets the cleaning requirement or not, wherein the method comprises the following steps:
(1) Confirming that the operation time of the gas turbine barring is more than 6 hours, the output of a gas turbine barring meshing signal is 1 and the ambient temperature is more than 5 ℃;
(2) Confirming to start the frequency conversion device, wherein the excitation device is in a standby state and has no blocking or fault signal;
(3) Checking that the cleaning module, the liquid adding module and the controller are normal, and particularly, the nozzle switching electromagnetic valve, the water replenishing electromagnetic valve have no fault, and the water washing tank has no high liquid level or low liquid level for alarming; and (3) confirming that the hose between the opening of the dosing electromagnetic valve in the dosing module and the washing tank is firmly connected, and confirming that the opening of the jet pump on the washing tank is firmly connected with the main connecting pipe.
(4) Confirming that each discharge valve of the gas turbine body is opened, confirming that the discharge valve from the washing tank to the trench and the air exhaust valve are opened;
(5) Putting an IGV power supply sub-ring, opening the IGV opening to 100%, and confirming that the IGV opening is 100%;
(6) Confirming the opening of an air inlet baffle of the air compressor, stopping the inlet dryer, and confirming the stopping of the inlet dryer;
(7) And (4) confirming that the 'release' condition of the waste heat boiler is met, opening a chimney baffle, and confirming that the chimney baffle is opened.
(8) The "SGC GAS TURBINE", "UNIT COORDINATION", and "SFC HRSG PURGE" are switched from ON to OFF state.
(9) An "ON" signal of "EXCITATION" is asserted to be "1", an "SFC 1RDY" signal is asserted to be "1", and an "SFC 3RDY" signal is asserted to be "1", and no latch-up or fault signal is signaled to the SFC.
2. Soaking work
A control program is deployed in the controller by a professional according to different requirements, and the embodiment takes a preferred control mode as an illustration to realize the soaking operation of the compressor, and includes the following steps:
(1) The controller controls the mixed cleaning liquid to mix the cleaning liquid medicine and the desalted water according to the proportion of 1:4, namely the cleaning liquid medicine and the desalted water are added into the water washing tank by opening the medicine adding electromagnetic valve and the water supplementing electromagnetic valve respectively according to the proportion of 1:4 until the mixed cleaning liquid reaches the high liquid level of the water washing tank, the preparation of the cleaning liquid is completed, and then the medicine adding electromagnetic valve and the water supplementing electromagnetic valve are closed;
(2) Confirming that a water inlet valve of an atomizing nozzle (SPRAY NOZZEL) is in a closed state, opening a water inlet valve of a JET nozzle (JET NOZZEL) of a compressor, and confirming that the water inlet valve of the JET nozzle (JET NOZZEL) of the compressor is opened;
(3) Starting the jet pump, wherein at the moment, on-site personnel are required to check that the water level of the cleaning water tank is normally reduced, and the interfaces of the cleaning liquid conveying pipelines are free from leakage;
(4) Stopping the JET pump by delaying X minutes through a timer or outputting a signal '1' through a low liquid level switch, closing a water inlet valve of a JET nozzle (JET NOZZEL) of the air compressor, and confirming that the water inlet valve of the JET nozzle (JET NOZZEL) of the air compressor is closed; in specific implementation, the time X to be delayed is set by professional technicians in the field according to different requirements;
(5) Opening a water inlet valve of an atomizing nozzle (SPRAY NOZZEL), and confirming that the water inlet valve of the atomizing nozzle (SPRAY NOZZEL) is opened;
(6) Stopping the gas turbine barring, and confirming that the gas turbine barring meshing signal is '0';
(7) Set SFC to switch from UNIT START to COMPR WASH mode, invest SFC PREPARE.
Starting the jet pump;
(8) After the prefix signal is confirmed to be '1', executing a mode (2), namely confirming to start the combustion engine by a disk personnel, and stopping the SFC after the speed is increased to 700-800 rpm;
(9) The jet pump is stopped by delaying for X minutes by a timer or outputting a signal '1' by a low liquid level switch.
(10) Closing a water inlet valve of an atomizing nozzle (SPRAY NOZZEL), opening a water replenishing electromagnetic valve, and replenishing demineralized water into a water washing tank;
(11) Confirming closing of a water inlet valve of an atomizing nozzle (SPRAY NOZZEL);
(12) And when the turning speed of the combustion engine is less than 2.5Hz, starting a turning program of the combustion engine.
3. Rinsing work
The method is characterized in that a control program is deployed in a controller by a professional technician according to different requirements, and the embodiment takes a preferred control mode as an illustration to realize the rinsing work of the compressor, and comprises the following steps:
(1) Closing the water replenishing electromagnetic valve after delaying X minutes or closing the water replenishing electromagnetic valve when a high liquid level switch signal of the water washing tank outputs '1';
(2) Confirming that a water inlet valve of a JET nozzle (JET NOZZEL) of the compressor is closed, and opening a water inlet valve of an atomizing nozzle (SPRAY NOZZEL);
(3) Confirming the opening of the water inlet valve of the atomizing nozzle (SPRAY NOZZEL);
(4) Checking a gas turbine barring engagement signal, and if a signal is '0', determining that the gas turbine barring is stopped, and if a signal is '1', stopping the gas turbine barring;
(5) Checking SFC in COMPR WASH mode, and applying SFC PREPARE;
(6) After the prefix signal is confirmed to be '1', executing a mode (2), namely after the disk personnel check the automatic operation of the SFC, the rotating speed is increased to 700-800 revolutions/minute, and then the SFC exits;
(7) When the turning speed of the gas turbine is less than 2Hz, starting a turning program of the gas turbine;
(8) The jet pump is stopped by delaying X minutes or outputting a signal of '1' by a low liquid level switch, and a water inlet valve of an atomizing nozzle (SPRAY NOZZEL) is closed.
(9) Confirming that the atomizing nozzle (SPRAY NOZZEL) water inlet valve and the JET nozzle (JET NOZZEL) water inlet valve are in the closed position.
(10) When no water flows out of the water collecting tank, the local operator closes all the water discharge valves.
4. Restoration of service
(1) Switching the SFC operation mode from COMPR WASH to UNIT START;
(2) "SGC GAS TURBINE", "UNIT COORDINATION" and "SFC HRSG PURGE" are switched from OFF state to ON state;
(3) Closing the IGV to 11%, and exiting the IGV power supply sub-ring;
(4) A drying device is used.
It can be understood that, in this embodiment, an application program deployed inside the processor is the prior art, and can automatically process measured data of the compressor, and meanwhile, programming software loaded inside the controller is also the prior art, and can realize corresponding functions of controlling the on-off of the dosing electromagnetic valve and the water replenishing electromagnetic valve, and details are not repeated here.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An off-line cleaning system for a gas compressor is characterized by comprising a state confirmation module, a cleaning module, a liquid adding module, a liquid storage module and a controller;
the cleaning module comprises a water washing tank, and the water washing tank is connected with a cleaning part through a main connecting pipe;
the cleaning module, the liquid adding module and the liquid storage module are sequentially connected;
the liquid adding module is connected with the controller;
and the state confirmation module is respectively connected with the air compressor and the controller.
2. The offline compressor cleaning system as claimed in claim 1, wherein the washing tank is provided with a first sensor and a second sensor;
the controller is respectively connected with the first sensor and the second sensor;
the first sensor is arranged at the upper part of the washing tank and is used for detecting the high liquid level of the washing tank;
the second sensor is arranged at the lower part of the washing tank and is used for detecting the low liquid level of the washing tank;
the controller is also connected with a high liquid level switch and a low liquid level switch respectively.
3. The compressor off-line cleaning system of claim 1, wherein the cleaning component comprises a cleaning nozzle, and the cleaning nozzle comprises a jet nozzle and an atomizing nozzle.
4. The offline compressor cleaning system according to claim 3, wherein the cleaning component comprises a nozzle switching solenoid valve, and the nozzle switching solenoid valve is connected with the controller;
the nozzle switching electromagnetic valve comprises a liquid inlet and a plurality of liquid outlets;
the liquid inlet is connected with a main connecting pipe, and the other end of the main connecting pipe is connected with a washing tank;
the liquid outlets are connected with secondary connecting pipes, and each secondary connecting pipe is connected with different cleaning nozzles respectively.
5. The offline compressor cleaning system as claimed in claim 1, wherein the cleaning module comprises a jet pump, an inlet of the jet pump is connected with the water washing tank, and an outlet of the jet pump is connected with the main connecting pipe.
6. The offline compressor cleaning system according to claim 1, wherein the liquid storage module comprises a medicine storage tank and a demineralized water storage tank;
the medicine storage box is connected with the washing box through a first connecting pipe;
the brine storage and removal tank is connected with the water washing tank through a second connecting pipe.
7. The off-line compressor cleaning system according to claim 6, wherein the liquid adding module comprises a dosing electromagnetic valve; the dosing electromagnetic valve is installed on the first connecting pipe and connected with the controller.
8. The off-line compressor cleaning system according to claim 6, wherein the liquid adding module comprises a water replenishing solenoid valve, the water replenishing solenoid valve is mounted on the second connecting pipe, and the water replenishing solenoid valve is connected with the controller.
9. The system for offline cleaning of the compressor of claim 1, wherein the status confirmation module comprises a processor and a plurality of detection devices, and the detection devices are used for detecting status parameters of the compressor.
10. The offline compressor cleaning system according to claim 1, further comprising an alarm module, wherein the alarm module is connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352301.1A CN115646911A (en) | 2022-10-31 | 2022-10-31 | Off-line cleaning system for gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211352301.1A CN115646911A (en) | 2022-10-31 | 2022-10-31 | Off-line cleaning system for gas compressor |
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| Publication Number | Publication Date |
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| CN115646911A true CN115646911A (en) | 2023-01-31 |
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| CN202211352301.1A Pending CN115646911A (en) | 2022-10-31 | 2022-10-31 | Off-line cleaning system for gas compressor |
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| CN (1) | CN115646911A (en) |
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- 2022-10-31 CN CN202211352301.1A patent/CN115646911A/en active Pending
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