CN111486463A - Ash removal system - Google Patents
Ash removal system Download PDFInfo
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- CN111486463A CN111486463A CN202010325116.8A CN202010325116A CN111486463A CN 111486463 A CN111486463 A CN 111486463A CN 202010325116 A CN202010325116 A CN 202010325116A CN 111486463 A CN111486463 A CN 111486463A
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- control device
- combustion
- blast wave
- wave generating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses an ash removal system.A gas supply control device is used for outputting combustible gas and combustion-supporting gas and regulating and controlling the pressure and flow of the output combustible gas and combustion-supporting gas; the outlet of the gas supply control device is respectively communicated with the inlets of more than one blast wave generating device, the outlet of each blast wave generating device is arranged corresponding to a point to be dedusted, the blast wave generating devices are used for converting combustible gas and combustion-supporting gas into blast waves, and the blast waves act on the point to be dedusted to remove ash; the on-site master control device is connected with more than one blast wave generating device in an electric signal control way so as to control each blast wave generating device; the remote control device is in wireless data connection with the local master control device so as to monitor the local master control device. The invention can remove ash with high quality and low energy consumption, is synchronous with field control and remote control, comprehensively controls the whole ash removing process in real time without limiting space, obviously improves the automation level and the operation efficiency of the ash removing process, and has simple and reliable system structure and high fault tolerance.
Description
Technical Field
The invention relates to the technical field of equipment ash removal in general, and particularly relates to an ash removal system.
Background
At present, in the operation process of an industrial boiler or a civil boiler, ash and slag are easily accumulated on the surfaces of a water-cooled wall, a superheater, an economizer, a preheater, a flue and the like, namely heating surfaces, so that the heat efficiency of the heating surfaces of the boiler is reduced, and accidental shutdown can be caused, so that ash and slag removal needs to be carried out on the boiler. However, the traditional ash removal equipment has ash removal dead corners, high operation energy consumption, high dependence on personnel and large limitation degree of sites during operation and control, and is very unfavorable for the efficient operation of an ash removal process and the improvement of the automation degree of the ash removal process.
Therefore, there is a need for an ash removal system with high ash removal quality and high overall control.
Disclosure of Invention
It is a primary object of the present invention to overcome at least one of the above-mentioned deficiencies of the prior art and to provide an ash removal system having high ash removal quality and high overall control.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to an aspect of the present invention, there is provided an ash removal system comprising: the device comprises a gas supply control device, more than one blast wave generating device, a local master control device and a remote control device, wherein the gas supply control device is used for outputting combustible gas and combustion-supporting gas and regulating and controlling the pressure and flow of the output combustible gas and combustion-supporting gas; the outlet of the gas supply control device is respectively communicated with the inlets of the more than one blast wave generating devices, the outlet of each blast wave generating device is arranged corresponding to a point to be ash-removed, the blast wave generating devices are used for converting combustible gas and combustion-supporting gas into explosion waves, and the explosion waves act on the point to be ash-removed to remove ash; the site master control device is connected with the more than one blast wave generating devices in an electric signal control way so as to control each blast wave generating device; the remote control device is in wireless data connection with the local master control device so as to monitor the local master control device.
According to an embodiment of the present invention, the gas supply control device includes a combustible gas source portion and a combustion-supporting gas source portion, which are respectively used for supplying combustible gas and combustion-supporting gas to the blast wave generating device.
According to an embodiment of the present invention, the combustible gas source portion and the combustion-supporting gas source portion are respectively communicated with the blast wave generator through a combustible gas pressure regulating valve and a combustion-supporting gas pressure regulating valve, the combustible gas pressure regulating valve is configured to regulate and control pressure and flow of combustible gas supplied to the blast wave generator, and the combustion-supporting gas pressure regulating valve is configured to regulate and control pressure and flow of combustion-supporting gas supplied to the blast wave generator.
According to an embodiment of the invention, the blast wave generating device comprises a mixing chamber for mixing the combustible gas and the combustion-supporting gas output by the gas supply control device.
According to an embodiment of the present invention, the blast wave generator includes an igniter disposed corresponding to the outlet of the mixing chamber for combustion reaction of the mixed combustible gas and combustion-supporting gas.
According to an embodiment of the invention, the blast wave generating device comprises a pulse generator in communication with the outlet of the mixing chamber for intensifying and accelerating the combustion reaction of the combustible gas and the combustion supporting gas to form the blast wave.
According to one embodiment of the invention, the local master control device comprises a controller, a touch panel and a communicator, wherein the controller is in control connection with the more than one blast wave generation devices and is used for controlling the blast wave generation devices to perform a first blowing operation, an inflation operation, an ignition operation and a tail blowing operation and monitoring and acquiring running state data of the blast wave generation devices in real time; the touch panel is in data connection with the controller and is used for inputting control data to the controller; and the communicator is in data connection with the controller and is used for transmitting the running state data of the blast wave generating device acquired by the controller to the remote control device.
According to an embodiment of the present invention, the dust removing system further comprises a data relay device, wherein the data relay device is wirelessly connected to the local general control device for receiving and storing the data output by the local general control device.
According to an embodiment of the present invention, the remote control device is wirelessly data-connected to the data relay device, and is configured to acquire data stored in the data relay device and control the local general control device through the data relay device.
According to one embodiment of the invention, the ash removal system is used for removing ash from a boiler device, and the ash removal point is located on a heating surface of the boiler device.
According to the technical scheme, the ash removal system has the advantages and positive effects that:
the invention has the advantages that the gas supply control device regulates and controls the pressure and the flow of combustible gas and combustion-supporting gas output by the gas supply control device to respectively supply gas for more than one blast wave generating devices, each blast wave generating device generates blast waves to ash points to be removed, the local master control device controls each blast wave generating device, the remote control device monitors the local master control device, the deep and dead-angle-free high-quality ash removal can be carried out, the energy consumption of ash removal can be reduced by using the blast waves, the field control and the remote control are simultaneously carried out, the whole ash removal process is comprehensively controlled in real time without space limitation, the automation level and the operation efficiency of the ash removal process are obviously improved, the system structure is simple, reliable and high in fault tolerance, and the gas supply control device has high economical efficiency and is extremely suitable for popularization and use in the industry.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the overall structure of an ash removal system according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
1. a boiler plant; 11. waiting for dust points to be removed; 2. an air supply control device; 21. a combustible gas source section; 22. a combustion-supporting gas source section; 3. a blast wave generating device; 31. a pulse generator; 4. a local general control device; 5. a data relay device; 6. a remote control device; 7. and (4) an upper computer.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the following description of various examples of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "top," "bottom," "front," "back," "side," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., as to the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the invention.
FIG. 1 is a schematic view of the overall structure of an ash removal system according to an embodiment of the present invention.
The ash removal system of this embodiment includes: the system comprises a gas supply control device 2, more than one blast wave generating device 3, a local master control device 4 and a remote control device 6, wherein the gas supply control device 2 is used for outputting combustible gas and combustion-supporting gas and regulating and controlling the pressure and flow of the output combustible gas and combustion-supporting gas; the outlet of the gas supply control device 2 is respectively communicated with the inlets of more than one blast wave generating device 3, the outlet of each blast wave generating device 3 is arranged corresponding to an ash removing point 11 to be removed, the blast wave generating devices 3 are used for converting combustible gas and combustion-supporting gas into explosion waves, and the explosion waves act on the ash removing points 11 to be removed to remove ash; the on-site master control device 4 is connected with more than one blast wave generating device 3 in an electric signal control way so as to control each blast wave generating device 3; the remote control device 6 is in wireless data connection with the local general control device 4 to monitor the local general control device 4.
In this embodiment, the ash removal system can be used for removing ash from a boiler plant 1, such as an industrial boiler or a domestic boiler, or in any other suitable situation where ash removal is required; the point 11 for ash removal is located on the heated surface of the boiler equipment 1, and the heated surface can be the surface of a water-cooled wall, a superheater, an economizer, a preheater, a flue and the like of the boiler; the number of the more than one blast wave generating devices 3 can be one, two or more, the specific number of the blast wave generating devices 3 can be set according to the number of the ash points 11 to be removed, and the blast wave generating devices 3 and the ash points 11 to be removed are arranged in a one-to-one correspondence mode.
In this embodiment, the gas supply control device 2 includes a gas supply control cabinet, a combustible gas source part 21 and a combustion-supporting gas source part 22 which are arranged outside the gas supply control cabinet, and a combustible gas electromagnetic valve, a combustible gas pressure regulating valve, a combustible gas filter, a combustible gas pressure sensor, a first combustible gas check valve, a combustible gas stop valve, a combustion-supporting gas pressure regulating valve, a first combustion-supporting gas filter, a combustion-supporting gas pressure sensor, a first combustion-supporting gas check valve, a combustion-supporting gas stop valve and a first leakage alarm which are arranged in the gas supply control cabinet; combustible gas source portion 21, the combustible gas solenoid valve, combustible gas pressure regulating valve, the combustible gas filter, combustible gas pressure sensor, first combustible gas check valve, the combustible gas check valve communicates through the pipeline in order, combustible gas source portion 21 is used for providing combustible gas to blast wave generating device 3, combustible gas can be the acetylene of compression, the natural gas, coal gas, carbon monoxide etc, combustible gas pressure regulating valve is used for regulating and control the pressure and the flow to the combustible gas that blast wave generating device 3 provided, the combustible gas filter is used for filtering with the purity and the drying of guaranteeing combustible gas to combustible gas, first combustible gas check valve is used for preventing that combustible gas backward flow guarantees combustible gas one-way flow, the combustible gas check valve is used for manual the transport of intercepting combustible gas to blast wave generating device 3.
In this embodiment, the combustion-supporting gas source 22, the combustion-supporting gas pressure regulating valve, the first combustion-supporting gas filter, the combustion-supporting gas pressure sensor, the first combustion-supporting gas check valve, and the combustion-supporting gas check valve are sequentially communicated through a pipeline, the combustion-supporting gas source 22 is used for providing combustion-supporting gas to the blast wave generator 3, the combustion-supporting gas may be compressed air or oxygen, the combustion-supporting gas pressure regulating valve is used for regulating and controlling the pressure and flow of the combustion-supporting gas provided to the blast wave generator 3, the first combustion-supporting gas filter is used for filtering the combustion-supporting gas to ensure the purity and dryness of the combustion-supporting gas, the first combustion-supporting gas check valve is used for preventing the combustion-supporting gas from flowing back to ensure the one-way flow of the combustion-supporting gas, and the combustion; the first leakage alarm comprises a combustible gas detection and detection assembly and an alarm assembly, wherein the combustible gas detection and detection assembly comprises a combustible gas sensor for detecting whether combustible gas is leaked, and the alarm assembly is in signal connection with the combustible gas detection assembly and used for sending out audible and visual warning signals and alarm electric signals.
In this embodiment, each of the blast wave generators 3 includes a blast wave generating cabinet, and a first electromagnetic valve, a second combustible gas check valve, a flame arrester, a second combustion-supporting gas filter, a third electromagnetic valve, a second combustion-supporting gas check valve, a mixing chamber, a mixing pressure sensor, an ignition chamber, an igniter, a second leakage alarm, an over-temperature detector, and a pulse generator 31 disposed outside the blast wave generating cabinet; an outlet of a combustible gas stop valve of the gas supply control device 2 is communicated with an inlet of a first electromagnetic valve of the blast wave generation device 3 through a pipeline, and then the first electromagnetic valve, a second combustible gas check valve and a flame arrester are communicated in sequence through the pipeline, and the flame arrester is used for preventing flame generated by combustion of combustible gas from spreading to a gas source end along the pipeline; the outlet of the combustion-supporting gas stop valve of the gas supply control device 2 is communicated with the inlet of a second combustion-supporting gas filter of the blast wave generation device 3 through a pipeline, and then the second combustion-supporting gas filter, a third electromagnetic valve and a second combustion-supporting gas check valve are communicated in sequence through pipelines, and the second combustion-supporting gas filter is used for further filtering combustion-supporting gas.
In the embodiment, an outlet of the flame arrester is communicated to the mixing chamber through a pipeline, an outlet of the second combustion-supporting gas check valve is communicated to the mixing chamber through a pipeline, so that the combustible gas and the combustion-supporting gas can enter the mixing chamber to be mixed, a gas concentration sensor can be arranged in the mixing chamber, an outlet of the mixing chamber is communicated with an inlet of the ignition chamber, a mixing pressure sensor is arranged between the mixing chamber and the ignition chamber and used for sensing the gas pressure after the combustible gas and the combustion-supporting gas are mixed, and an igniter is arranged in the ignition chamber and used for generating electric sparks to enable the combustible gas and the combustion-supporting gas mixed to be subjected to; each blast wave generating device 3 comprises a group of pulse generators 31, the group of pulse generators 31 can comprise one, two or more pulse generators 31, the outlet of the ignition chamber extends out of the blast wave generating cabinet through a pipeline and then is communicated with the group of pulse generators 31 in parallel, the pulse generators 31 are used for strengthening and accelerating the combustion reaction of combustible gas and combustion-supporting gas to form blast waves, namely pulse waves, the outlet of the pulse generators 31 is connected with an ejector, the ejector can comprise a nozzle with adjustable direction, such as a corrugated pipe nozzle, or the ejector can comprise a motor and a nozzle, and the motor is used for driving the nozzle to rotate so as to adjust the direction of the nozzle; the second leakage alarm comprises a combustible gas detection and detection assembly and an alarm assembly, the combustible gas detection and detection assembly comprises a combustible gas sensor for detecting whether combustible gas leaks, and the alarm assembly is in signal connection with the combustible gas detection assembly and is used for sending out an audible and visual alarm signal and an alarm electric signal; the overtemperature detector is used for sensing the operating environment temperature in real time and giving an overtemperature alarm.
In this embodiment, the local general control device 4 includes a local general control cabinet, and a controller, a touch panel, a communicator, a relay and a switch, which are disposed inside the local control cabinet, wherein the controller may be a programmable logic controller or a microcomputer controller, the controller is electrically connected to each valve of the air supply control device 2, the pressure sensor and the first leakage alarm, and is also electrically connected to each valve of each blast wave generation device 3, the pressure sensor, the gas concentration sensor, the igniter, the second leakage alarm and the over-temperature detector, so as to monitor and obtain the operation state data of each blast wave generation device 3 in real time, and control each blast wave generation device 3 to perform a first purging operation, an inflation operation, an ignition operation and a tail purging operation, wherein the first purging operation is controlled to remove ash only by using a combustion-supporting gas such as air, and the combustible gas and the combustion-supporting gas are mixed to a predetermined concentration during the inflation operation, the concentration is sensed by a gas concentration sensor in real time, an igniter is controlled to ignite the mixed gas in the ignition operation, the tail blowing operation is controlled to remove dust only by using combustion-supporting gas such as air, and the controller can also control the valve of the gas supply control device 2 and/or the valve of the blast wave generation device 3 corresponding to the alarm signal to be closed according to the alarm signals of the first leakage alarm, the second leakage alarm and the over-temperature detector so as to ensure the normal operation of other blast wave generation devices 3 which do not send the alarm signal and the operation safety of the whole system.
In this embodiment, the controller can be connected to the valves of the gas supply control device 2, the valves of the blast wave generation devices 3, and the igniter through a plurality of relays; the touch panel of the local master control device 4 can be embedded on the surface of the local master control cabinet, is in data connection with the controller and is used for inputting control data such as start-stop instructions and operation parameters to the controller, wherein the operation parameters comprise the pressure and flow of combustible gas, the pressure and flow of combustion-supporting gas, the operation of one or more blast wave generating devices 3, the pulse frequency of blast waves, the duration and interval duration of each operation and the like; the switches can be button switches, a plurality of switches can be arranged and are in electric signal control connection with the controller, and the switches are used for inputting instructions such as start-stop instructions and reset instructions to the controller; the communicator is connected with the controller in a data mode, the controller can transmit the running state data of the blast wave generation device 3 acquired by the controller to the remote control device 6 through the communicator, and the running state data can comprise the states of all valves, the data of all sensors, the data of an alarm, the current process stage and the like.
In the embodiment, the dust removing system further comprises a data relay device 5, the communicator of the local general control device 4 can be in wireless data connection with the data relay device 5 through the industrial internet, and the data relay device 5 is used for receiving and storing the data transmitted by the local general control device 4; the data relay device 5 can be in wireless data connection with the remote control device 6 through the industrial internet, the remote control device 6 can be a notebook computer, a mobile smart phone or a mobile tablet computer, for example, an application program can be loaded in the notebook computer, the mobile smart phone or the mobile tablet computer, the application program can comprise a monitoring data display window and a control instruction key, the remote control device 6 can obtain data stored in the data relay device 5 through the industrial internet and display the data through the monitoring data display window to remotely monitor field dedusting operation, and can trigger the control instruction key of the remote control device 6, so that the remote control device 6 sends control data to the local main control device 4 through the data relay device 5 to remotely control the field dedusting operation; the dust removing system can also be provided with an upper computer 7, and the upper computer 7 can be connected with the local master control device 4 through a data transmission cable so as to monitor the local master control device 4 in real time.
In the invention, the gas supply control device 2 regulates and controls the pressure and flow of combustible gas and combustion-supporting gas output by the gas supply control device to respectively supply gas for more than one blast wave generating devices 3, each blast wave generating device 3 generates blast waves to ash each pair of points to be ash-removed 11, the local master control device 4 controls each blast wave generating device 3, and the remote control device 6 monitors the local master control device 4, so that the deep and dead-corner-free high-quality ash removal can be carried out, the energy consumption of ash removal can be reduced by using the blast waves, the field control and the remote control are carried out simultaneously, the whole ash removal process is comprehensively controlled in real time and in an unlimited space manner, the automation level and the operation efficiency of the ash removal process are obviously improved, the system structure is simple and reliable, the fault tolerance is high, and the system has high economical efficiency and is extremely suitable for popularization and use in the industry.
It should be understood by those of ordinary skill in the art that the specific constructions and processes illustrated in the foregoing detailed description are exemplary only, and are not limiting. Furthermore, the various features shown above can be combined in various possible ways to form new solutions, or other modifications, by a person skilled in the art, all falling within the scope of the present invention.
Claims (10)
1. An ash removal system, comprising: the device comprises a gas supply control device, more than one blast wave generating device, a local master control device and a remote control device, wherein the gas supply control device is used for outputting combustible gas and combustion-supporting gas and regulating and controlling the pressure and flow of the output combustible gas and combustion-supporting gas; the outlet of the gas supply control device is respectively communicated with the inlets of the more than one blast wave generating devices, the outlet of each blast wave generating device is arranged corresponding to a point to be ash-removed, the blast wave generating devices are used for converting combustible gas and combustion-supporting gas into explosion waves, and the explosion waves act on the point to be ash-removed to remove ash; the site master control device is connected with the more than one blast wave generating devices in an electric signal control way so as to control each blast wave generating device; the remote control device is in wireless data connection with the local master control device so as to monitor the local master control device.
2. The ash removal system of claim 1, wherein the gas supply control device comprises a combustible gas supply portion and a combustion-supporting gas supply portion for supplying combustible gas and combustion-supporting gas, respectively, to the blast wave generation device.
3. The ash handling system of claim 2, wherein the combustible gas source portion and the combustion-supporting gas source portion are respectively communicated with the blast generator through a combustible gas pressure regulating valve and a combustion-supporting gas pressure regulating valve, the combustible gas pressure regulating valve is configured to regulate pressure and flow of the combustible gas supplied to the blast generator, and the combustion-supporting gas pressure regulating valve is configured to regulate pressure and flow of the combustion-supporting gas supplied to the blast generator.
4. The ash removal system of claim 1, wherein the blast wave generating device comprises a mixing chamber for mixing the combustible gas and the combustion supporting gas output by the gas supply control device.
5. The ash removal system of claim 4, wherein the blast wave generating device comprises an igniter disposed corresponding to the outlet of the mixing chamber for combustion reaction of the mixed combustible gas and combustion supporting gas.
6. The ash removal system of claim 5, wherein the blast wave generating device comprises a pulse generator in communication with the outlet of the mixing chamber for intensifying and accelerating the combustion reaction of the combustible gas and the combustion supporting gas to form the blast wave.
7. The dust removing system according to claim 1, wherein the local general control device comprises a controller, a touch panel and a communicator, wherein the controller is in control connection with the more than one blast wave generating devices and is used for controlling each blast wave generating device to perform a first blowing operation, an inflation operation, an ignition operation and a tail blowing operation and monitoring and acquiring running state data of each blast wave generating device in real time; the touch panel is in data connection with the controller and is used for inputting control data to the controller; and the communicator is in data connection with the controller and is used for transmitting the running state data of the blast wave generating device acquired by the controller to the remote control device.
8. The dust removing system as claimed in claim 1, further comprising a data relay device, said data relay device being in wireless data connection with said local general control device for receiving and storing data outputted from said local general control device.
9. The dust pelletizing system of claim 8, wherein said remote control means is in wireless data communication with said data relay means for obtaining data stored in said data relay means and controlling said local overall control means through said data relay means.
10. The ash removal system of any one of claims 1 to 9, wherein the ash removal system is used for removing ash from a boiler plant, and the ash removal point is located on a heating surface of the boiler plant.
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| CN202010325116.8A CN111486463A (en) | 2020-04-23 | 2020-04-23 | Ash removal system |
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| CN202010325116.8A CN111486463A (en) | 2020-04-23 | 2020-04-23 | Ash removal system |
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Application publication date: 20200804 |
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