CN112665677A - Automatic air chamber cleaning system and method of air pollution online monitoring equipment - Google Patents
Automatic air chamber cleaning system and method of air pollution online monitoring equipment Download PDFInfo
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- CN112665677A CN112665677A CN202011564856.3A CN202011564856A CN112665677A CN 112665677 A CN112665677 A CN 112665677A CN 202011564856 A CN202011564856 A CN 202011564856A CN 112665677 A CN112665677 A CN 112665677A
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Abstract
The invention discloses an automatic cleaning system and a method for an air chamber of air pollution online monitoring equipment, which comprises a first cover plate, a water pump, an electric telescopic rod, a cylindrical water storage block, a spray washing head, a second cover plate, micro motors and a second air pump, wherein two groups of micro motors are assembled on the upper end surface of an air chamber box, the first cover plate is installed on the inner side of a rotating block, the second cover plate is installed on the upper end surface of the air chamber box and positioned on one side of the first cover plate, the electric telescopic rod is assembled on the upper side of the inner wall of an online monitoring equipment box, the cylindrical water storage block is installed at the lower end of the electric telescopic rod, a plurality of spray washing heads are installed on the annular side surface of the cylindrical water storage block, the water pump is assembled in a water tank, the automatic cleaning system analyzes the dust content in the air chamber through a dust analysis module, realizes the automatic, the quality of the automatic cleaning work of the air chamber is ensured.
Description
Technical Field
The invention belongs to the technical field of air pollution monitoring, relates to automatic cleaning of an air chamber, and particularly relates to an automatic air chamber cleaning system and method of an air pollution online monitoring device.
Background
Air pollution, also known as atmospheric pollution, generally refers to the phenomenon of certain substances entering the atmosphere, in sufficient concentrations, for a sufficient time, and therefore jeopardizing human comfort, health and welfare, or the environment, due to human activities or natural processes, according to the definition of the international organization for standardization. Air pollution monitoring refers to the fixed-point, continuous or timed sampling and measurement of pollutants present in the air. In order to monitor air, a plurality of air monitoring points are generally set up in a city, automatic monitoring instruments are installed for continuous automatic monitoring, monitoring results are sent to a person to be retrieved periodically, and relevant data are analyzed and obtained. Items for air monitoring mainly include sulfur dioxide, nitric oxide, hydrocarbons, floating dust, and the like. Air monitoring is the basis for air quality control and reasonable evaluation of air quality.
Air pollution on-line monitoring equipment's air chamber can't realize self-cleaning, needs the manual work to clear up under most of the circumstances, and the manual work drawback of clearing up is: the dust amount in the air chamber box cannot be known in time, and the manual cleaning efficiency is low; although some mechanical cleaning devices exist at present, dust cleaning work cannot be accepted, so that the dust cleaning work quality is not high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an automatic air chamber cleaning system and method of air pollution online monitoring equipment.
The technical problem to be solved by the invention is as follows:
the air chamber of the air pollution online monitoring equipment cannot be automatically cleaned, manual cleaning is needed in most cases, and the defects that the dust amount in the air chamber box cannot be known in time, the manual cleaning efficiency is low and the like exist in the manual cleaning; although some mechanical cleaning equipment also exists at present, the dust cleaning work cannot be accepted, so that the dust cleaning work quality is not high.
The purpose of the invention can be realized by the following technical scheme:
an air chamber automatic cleaning system of air pollution on-line monitoring equipment comprises an on-line monitoring equipment box and an air chamber box arranged inside the on-line monitoring equipment box, wherein a circular hole is formed in the upper side of the inner part of the air chamber box, two groups of micro motors are assembled on the upper end face of the air chamber box, the output ends of the two groups of micro motors are connected with a rotating shaft, the rotating shaft penetrates through a group of fixed blocks, one end, away from the micro motors, of the rotating shaft is rotatably connected with the fixed blocks, a rotating block is arranged on the rotating shaft, a first cover plate is arranged on the inner side of the rotating block, a second cover plate is arranged on the upper end face of the air chamber box and positioned on one side of the first cover plate, a rotating block is arranged on one side, away from;
the online monitoring equipment incasement wall upside is equipped with electric telescopic handle, the cylinder water storage piece is installed to the electric telescopic handle lower extreme, the annular side-mounting of cylinder water storage piece has a plurality of to spout the washing head, one side that online monitoring equipment incasement wall upside and lie in electric telescopic handle is equipped with the water tank, the inlet tube is installed to a side of water tank, water tank inside is equipped with the water pump, the water pump is connected with the conveyer pipe, the water pump is connected with the cylinder water storage piece through the conveyer pipe.
Further, four supporting shoes of group are installed to on-line monitoring equipment case lower extreme, the case lid is installed to on-line monitoring equipment case end, the chamber door is installed to on-line monitoring equipment case side, intake pipe is installed to air chamber box side, be equipped with first air pump in the intake pipe, air chamber box side just is located the intake pipe upside and installs the deashing pipe, the last side of just keeping away from the intake pipe of air chamber box installs the blow off pipe, install the second air pump on the blow off pipe, air chamber box side just is located the blow off pipe upside and installs the outlet duct, be on intake pipe, blow off pipe, outlet duct and the deashing pipe and install the control valve.
Furthermore, a splicing groove is formed in one side, close to the second cover plate, of the first cover plate, a splicing block is installed on one side, close to the first cover plate, of the second cover plate, and the splicing groove is matched with the splicing block.
Furthermore, the upper end surface of the air chamber box is provided with a circular sealing groove, the lower end surfaces of the first cover plate and the second cover plate are both provided with semicircular sealing lugs, and the sealing lugs are matched with the sealing grooves;
the diameter of cylinder water storage piece is less than the aperture of circular port, the conveyer pipe is for can stretching the corrugated hose.
Furthermore, a controller is installed inside the online monitoring equipment box, the controller is in data connection with a database, the controller is in bidirectional data connection with the database, the controller comprises a dust analysis module, a data acquisition module, a cleaning acceptance module and a cleaning allocation module, the data acquisition module is used for acquiring dust data of the air chamber box, and the data acquisition module specifically comprises a first dust sensor installed at an inlet of the air inlet pipe, a second dust sensor installed at the inlet, a third dust sensor installed at an inlet of the air outlet pipe and a fourth dust sensor installed at an outlet; the dust data comprises dust inlet amount, dust outlet amount and dust retention amount;
the data acquisition module transmits the acquired dust data to the dust analysis module; the dust analysis module is used for analyzing the dust data of the air chamber box, and the analysis steps are as follows:
the method comprises the following steps: acquiring a primary ash feeding amount JH1, a secondary ash feeding amount JH2, a primary ash discharging amount CH1 and a secondary ash discharging amount CH2 of the air chamber box;
step two: calculating the difference value of the primary ash feeding amount JH1 and the secondary ash feeding amount JH2 to obtain a primary ash stagnation amount ZH 1; calculating the difference value of the primary ash discharge CH1 and the secondary ash discharge CH2 to obtain a secondary ash stagnation amount ZH 1;
step three: acquiring the dust amount in the gas chamber box, and marking the dust amount in the gas chamber box as HC;
step four: obtaining the residual dust quantity L in the gas chamber box by using a formula L as HC-CH 1;
step five: the dust residual quantity L is combined with the primary ash retention quantity ZH1 and the secondary ash retention quantity ZH1, and the dust value Z1 of the air chamber box is calculated by a dust analysis module, wherein the formula is as follows:
Z1＝L×a1+ZH1×a2+ZH1×a3；
step six: if the dust value Z1 of the air chamber box is larger than the dust threshold value, judging that the dust amount in the air chamber box exceeds the standard, generating a dust exceeding signal, and loading the dust exceeding signal into the controller;
and after the controller receives the dust standard exceeding signal, the second air pump, the electric telescopic rod, the micro motor and the water pump of the controller work.
Further, the cleaning acceptance module is used for accepting the cleaning work of the air chamber box, and the acceptance process is as follows:
s1: collecting the dust amount H1 in the air inlet pipe, the dust amount H2 in the air outlet pipe and the dust amount H3 in the air chamber box again through the first dust sensor, the second dust sensor, the third dust sensor and the fourth dust sensor;
s2: calculating a dust value Z2 after the air outlet chamber box is cleaned by using a formula Z2 which is H1 × b1+ H2 × b2+ H3 × b 3;
s3: if the dust value Z2 exceeds the dust threshold value, judging that the dust amount in the air chamber box exceeds the standard, generating an unqualified cleaning signal, and loading the unqualified cleaning signal into the controller;
s4: the controller receives the unqualified cleaning signal and then produces a cleaning allocation instruction, and the cleaning allocation instruction is sent to the cleaning allocation module;
s5: and the cleaning and allocating module allocates the working time of the water pump and the second air pump and the cleaning water quantity of the water tank respectively.
Further, the cleaning and blending module is used for blending the cleaning work of the air chamber box, and the blending process is as follows:
SS 1: if the dust value Z2 is larger than the dust threshold value, calculating a difference value ZC between the dust value Z2 of the cleaned air chamber box and the dust threshold value;
SS 2: respectively calculating the difference between the primary ash retention amount ZH1 and the dust amount H1, the difference between the secondary ash retention amount ZH1 and the dust amount H2, and the difference between the dust residual amount L and the dust amount H3 to correspondingly obtain dust removal amounts QC1, QC2 and QC 3;
SS 3: calculating the difference between the start-stop time of the second air pump and the start-stop time of the water pump to obtain the working time T1 of the second air pump and the working time T2 of the water pump;
SS 4: calculating the ash removal rate Sq of the second air pump by using a formula Sq ═ QC1+ QC2+ QC 3)/T1; calculating the ash removal rate Ss of the water pump by using a formula Ss as QC 3/T2;
SS 5: the increased working time TZq required by the second air pump is obtained by calculating (QC1+ QC2+ QC3)/Sq again according to the formula TZq; working time TZs required to be increased for the water pump is calculated by TZs-QC 3/Ss;
SS 6: the calculated working time of the second air pump and the water pump needing to be increased is sent to the controller through the cleaning and allocating module, and the controller loads the increased working time into the second air pump and the water pump.
An automatic cleaning method for an air chamber of an air pollution online monitoring device comprises the following specific steps:
the method comprises the following steps that firstly, the dust analysis module is used for analyzing the dust amount in an air chamber box, a controller controls a water pump, a second air pump and a micro motor to work after the dust amount exceeds the standard, the micro motor drives a rotating block to rotate through a rotating shaft, the rotating block drives a first cover plate and a second cover plate to be opened, a splicing block is separated from a splicing groove, a sealing convex block is separated from a sealing groove, and a circular hole is opened at the moment;
step two, closing a control valve on the blow-off pipe, opening control valves on the air inlet pipe and the air outlet pipe, enabling a second air pump to work, enabling outside air to enter the air chamber box through the ash removal pipe, cleaning dust remained in the air inlet pipe through reverse flow of air, and meanwhile enabling the dust in the air outlet pipe to be discharged through continuous flow to the outside under the action of the air;
step three, the second air pump stops working, the electric telescopic rod is electrified to work and descend, the cylindrical water storage block enters the air chamber box through the circular hole, the water pump is electrified to work, a water source in the water tank is conveyed to the cylindrical water storage block through the conveying pipe and sprayed out through the spraying and washing head, the sprayed water source washes and cleans the interior of the air chamber box, and sewage generated by washing is discharged through the blow-off pipe;
and step four, checking and accepting the dust cleaning work in the air chamber box through the cleaning checking and accepting module, readjusting the working time of the second air pump and the water pump through the cleaning allocating module when the checking and accepting are not appropriate, and increasing the corresponding working time of the second air pump and the water pump until the dust cleaning work in the air chamber box reaches the standard.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, through the matched use of the parts such as the electric telescopic rod, the water pump, the spray cleaning head and the second air pump, the automatic cleaning of the air chamber of the air pollution online monitoring equipment can be realized, the manual cleaning of the air chamber of the air pollution online monitoring equipment is avoided, and the cleaning is timely and efficient;
2. according to the invention, the dust content in the air chamber in the air pollution online monitoring equipment is analyzed through the dust analysis module, when the analysis exceeds the standard, the corresponding equipment is controlled to automatically clean the air chamber, the cleaning acceptance module is used for accepting the cleaning work after the cleaning is finished, and the cleaning allocation module is used for allocating the working time of the second air pump and the water pump when the acceptance is unqualified until the cleaning work of the air chamber is achieved, so that the quality of the automatic cleaning work of the air chamber in the air pollution online monitoring equipment is effectively ensured.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an elevational, cross-sectional view of the present invention;
FIG. 3 is a schematic view showing the structure of the air cell case of the present invention;
FIG. 4 is a top view of the air cell box of the present invention;
FIG. 5 is a top sectional view of the air cell cassette of the present invention;
FIG. 6 is a schematic structural view of a first cover plate and a second cover plate according to the present invention;
fig. 7 is a block diagram of the system of the present invention.
In the figure: 1. monitoring an equipment box on line; 2. an air outlet pipe; 3. a blow-off pipe; 4. a support block; 5. a box door; 6. a box cover; 7. a first air pump; 8. an air inlet pipe; 9. a dust removal pipe; 10. a rotating shaft; 11. a circular hole; 12. a first cover plate; 121. splicing grooves; 13. a water inlet pipe; 14. a water tank; 15. a water pump; 16. a delivery pipe; 17. an electric telescopic rod; 18. a cylindrical water storage block; 19. spraying and washing the head; 20. a second cover plate; 201. splicing blocks; 21. an air chamber box; 22. a fixed block; 23. rotating the block; 24. a micro-motor; 25. sealing the groove; 26. a second air pump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-7, an air chamber automatic cleaning system of an air pollution online monitoring device comprises an online monitoring device box 1, an air outlet pipe 2, a blow-off pipe 3, a supporting block 4, a box door 5, a box cover 6, a first air pump 7, an air inlet pipe 8, an ash cleaning pipe 9, a rotating shaft 10, a circular hole 11, a first cover plate 12, an inlet pipe 13, a water tank 14, a water pump 15, a conveying pipe 16, an electric telescopic rod 17, a cylindrical water storage block 18, a spray cleaning head 19, a second cover plate 20, an air chamber box 21, a fixed block 22, a rotating block 23, a micro motor 24, a sealing groove 25 and a second air pump 26;
four groups of supporting blocks 4 are installed at the lower end of an online monitoring equipment box 1, a box cover 6 is installed at the upper end of the online monitoring equipment box 1, a box door 5 is installed on one side face of the online monitoring equipment box 1, an air chamber box 21 is installed inside the online monitoring equipment box 1, an air inlet pipe 8 is installed on one side face of the air chamber box 21, a first air pump 7 is installed on the air inlet pipe 8, an ash cleaning pipe 9 is installed on one side face of the air chamber box 21 and located on the upper side of the air inlet pipe 8, a drain pipe 3 is installed on one side face of the air chamber box 21 and far away from the air inlet pipe 8, a second air pump 26 is installed;
wherein, the air inlet pipe 8, the sewage discharge pipe 3, the air outlet pipe 2 and the ash removal pipe 9 are all provided with control valves;
the upper side in the air chamber box 21 is provided with a circular hole 11, the upper end face of the air chamber box 21 is provided with two groups of micro motors 24, the output ends of the two groups of micro motors 24 are connected with a rotating shaft 10, the rotating shaft 10 penetrates through a group of fixed blocks 22, one end, far away from the micro motors 24, of the rotating shaft 10 is rotatably connected with the fixed blocks 22, a rotating block 23 is installed on the rotating shaft 10, a first cover plate 12 is installed on the inner side of the rotating block 23, a second cover plate 20 is installed on one side, far away from the first cover plate 12, of the upper end face of the air chamber box 21, a rotating block 23 is installed inside the rotating block 23, and the rotating shaft 10 is;
a splicing groove 121 is formed in one side, close to the second cover plate 20, of the first cover plate 12, a splicing block 201 is mounted on one side, close to the first cover plate 12, of the second cover plate 20, and the splicing groove 121 is matched with the splicing block 201;
wherein, the upper end surface of the air chamber box 21 is provided with a circular sealing groove 25, the lower end surfaces of the first cover plate 12 and the second cover plate 20 are both provided with semicircular sealing lugs, and the sealing lugs are matched with the sealing groove 25;
an electric telescopic rod 17 is assembled on the upper side of the inner wall of the online monitoring equipment box 1, a cylindrical water storage block 18 is installed at the lower end of the electric telescopic rod 17, a plurality of spray washing heads 19 are installed on the annular side face of the cylindrical water storage block 18, a water tank 14 is assembled on the upper side of the inner wall of the online monitoring equipment box 1 and on one side of the electric telescopic rod 17, a water inlet pipe 13 is installed on one side face of the water tank 14, a water pump 15 is assembled inside the water tank 14, the water pump 15 is connected with a delivery pipe 16, and;
wherein, the diameter of the cylindrical water storage block 18 is smaller than the aperture of the circular hole 11, the conveying pipe 16 is a stretchable corrugated hose, and the conveying pipe 16 is reserved with enough length;
the online monitoring equipment box 1 is internally provided with a controller, the controller is in data connection with a database, the controller is in bidirectional data connection with the database, the controller comprises a dust analysis module, a data acquisition module, a cleaning acceptance module and a cleaning allocation module, the data acquisition module is used for acquiring dust data of the air chamber box 21, and the data acquisition module is specifically a first dust sensor arranged at an inlet of the air inlet pipe 8, a second dust sensor arranged at the inlet, a third dust sensor arranged at an inlet of the air outlet pipe 2 and a fourth dust sensor arranged at an outlet; the dust data comprises dust inlet amount, dust outlet amount and dust retention amount;
the data acquisition module transmits the acquired dust data to the dust analysis module; the dust analysis module is used for analyzing the dust data of the air chamber box 21, and the analysis steps are as follows:
the method comprises the following steps: acquiring a primary ash feeding amount JH1, a secondary ash feeding amount JH2, a primary ash discharging amount CH1 and a secondary ash discharging amount CH2 of the air chamber box 21;
step two: calculating the difference value of the primary ash feeding amount JH1 and the secondary ash feeding amount JH2 to obtain a primary ash stagnation amount ZH 1; calculating the difference value of the primary ash discharge CH1 and the secondary ash discharge CH2 to obtain a secondary ash stagnation amount ZH 1;
step three: acquiring the dust amount in the air chamber box 21, and marking the dust amount in the air chamber box 21 as HC;
step four: obtaining the residual dust amount L in the gas cell box 21 by using the formula L ═ HC-CH 1;
step five: the dust residual quantity L is combined with the primary ash retention quantity ZH1 and the secondary ash retention quantity ZH1, and the dust value Z1 of the air chamber box 21 is obtained through calculation of a dust analysis module, wherein the formula is as follows:
Z1＝L×a1+ZH1×a2+ZH1×a3；
step six: if the dust value Z1 of the air chamber box 21 is larger than the dust threshold value, judging that the dust amount in the air chamber box 21 exceeds the standard, generating a dust exceeding signal, and loading the dust exceeding signal into the controller;
after the controller receives the dust exceeding signal, the second air pump 26, the electric telescopic rod 17, the micro motor 24 and the water pump 15 are controlled to work;
specifically, the primary ash intake amount JH1 is detected by a first dust sensor, the secondary ash intake amount JH2 is detected by a second dust sensor, the primary ash discharge amount CH1 is detected by a third dust sensor, the secondary ash discharge amount CH2 is detected by a fourth dust sensor, the primary ash retention amount ZH1 is the ash retention amount in the air inlet pipe 8, and the secondary ash retention amount ZH2 is the ash retention amount in the air outlet pipe 2;
the cleaning acceptance module is used for accepting the cleaning work of the air chamber box 21, and the acceptance process is as follows:
s1: the dust amount H1 in the air inlet pipe 8, the dust amount H2 in the air outlet pipe 2 and the dust amount H3 in the air chamber box 21 are collected again through the first dust sensor, the second dust sensor, the third dust sensor and the fourth dust sensor;
s2: calculating a dust value Z2 of the air outlet chamber box 21 after cleaning by using a formula Z2 which is H1 × b1+ H2 × b2+ H3 × b 3;
s3: if the dust value Z2 exceeds the dust threshold value, judging that the dust amount in the air chamber box 21 exceeds the standard, generating an unqualified cleaning signal, and loading the unqualified cleaning signal into the controller;
s4: the controller receives the unqualified cleaning signal and then produces a cleaning allocation instruction, and the cleaning allocation instruction is sent to the cleaning allocation module;
s5: the cleaning and allocating module allocates the working time of the water pump 15 and the second air pump 26 and the cleaning water amount of the water tank 14 respectively;
the cleaning and allocating module is used for allocating the cleaning work of the air chamber box 21, and the allocating process is as follows:
SS 1: if the dust value Z2 is larger than the dust threshold value, calculating the difference value ZC between the dust value Z2 of the cleaned air chamber box 21 and the dust threshold value;
SS 2: respectively calculating the difference between the primary ash retention amount ZH1 and the dust amount H1, the difference between the secondary ash retention amount ZH1 and the dust amount H2, and the difference between the dust residual amount L and the dust amount H3 to correspondingly obtain dust removal amounts QC1, QC2 and QC 3;
SS 3: calculating the difference between the start-stop time of the second air pump 26 and the start-stop time of the water pump 15 to obtain the working time T1 of the second air pump 26 and the working time T2 of the water pump 15;
SS 4: calculating the ash removal rate Sq of the second air pump 26 by using a formula Sq ═ QC1+ QC2+ QC 3)/T1; calculating the ash removal rate Ss of the water pump 15 by using a formula Ss as QC 3/T2;
SS 5: the increased working time TZq of the second air pump 26 is calculated by using the formula TZq ═ QC1+ QC2+ QC3)/Sq again; TZs, calculating the required increased working time TZs of the water pump 15 by QC 3/Ss;
SS 6: the calculated working time of the second air pump 26 and the water pump 15 which needs to be increased is sent to the controller through the cleaning and allocating module, and the controller loads the increased working time into the second air pump 26 and the water pump 15;
the above formulas are all the numerical calculation by removing dimension, the formula is a formula of the latest real situation obtained by software simulation of collected mass data, and the preset parameters in the formula are set by the technical personnel in the field according to the actual situation.
Example two
An automatic cleaning method for an air chamber of an air pollution online monitoring device comprises the following specific steps:
step one, analyzing the dust amount in the air chamber box 21 through a dust analysis module, controlling the water pump 15, the second air pump 26 and the micro motor 24 to work by a controller after the dust amount exceeds the standard, driving the rotating block 23 to rotate by the micro motor 24 through the rotating shaft 10, driving the first cover plate 12 and the second cover plate 20 to open by the rotating block 23, separating the splicing block 201 from the splicing groove 121, separating the sealing convex block from the sealing groove 25, and opening the circular hole 11 at the moment;
step two, closing the control valve on the sewage discharge pipe 3, opening the control valves on the air inlet pipe 8 and the air outlet pipe 2, operating the second air pump 26, allowing outside air to enter the air chamber box 21 through the ash removal pipe 9, cleaning dust remained in the air inlet pipe 8 through reverse flow of air, and simultaneously discharging the dust in the air outlet pipe 2 to flow outwards under the action of the air;
step three, the second air pump 26 stops working, the electric telescopic rod 17 is electrified to work and descend, the cylindrical water storage block 18 enters the air chamber box 21 through the circular hole 11, the water pump 15 is electrified to work, a water source in the water tank 14 is conveyed to the cylindrical water storage block 18 through the conveying pipe 16 and is sprayed out through the spraying and washing head 19, the sprayed water source washes and cleans the interior of the air chamber box 21, and sewage generated by washing is discharged through the sewage discharge pipe 3;
and step four, checking and accepting the dust cleaning work in the air chamber box 21 through the cleaning checking and accepting module, readjusting the working time of the second air pump 26 and the water pump 15 through the cleaning allocation module when the checking and accepting are not proper, and increasing the corresponding working time of the second air pump 26 and the water pump 15 until the dust cleaning work in the air chamber box 21 reaches the standard.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides an air chamber self-cleaning system of air pollution on-line monitoring equipment, includes on-line monitoring equipment case (1) and installs air chamber box (21) inside on-line monitoring equipment case (1), its characterized in that, circular port (11) have been seted up to the inside upside of air chamber box (21), two sets of micromotor (24) are equipped with to air chamber box (21) up end, and is two sets of the output of micromotor (24) is connected with axis of rotation (10), axis of rotation (10) run through a set of fixed block (22), the one end that micromotor (24) were kept away from in axis of rotation (10) is connected with fixed block (22) rotation, install turning block (23) on axis of rotation (10), first apron (12) are installed to turning block (23) inboard, second apron (20) are installed to air chamber box (21) up end and the one side that is located first apron (12), a rotating block (23) is installed on one side, away from the first cover plate (12), of the second cover plate (20), a rotating shaft (10) is installed inside the rotating block (23), and the rotating shaft (10) is connected with a micro motor (24);
on-line monitoring equipment case (1) inner wall upside is equipped with electric telescopic handle (17), cylinder water storage piece (18) are installed to electric telescopic handle (17) lower extreme, the annular side-mounting of cylinder water storage piece (18) has a plurality of to spout washing head (19), on-line monitoring equipment case (1) inner wall upside and the one side that is located electric telescopic handle (17) are equipped with water tank (14), inlet tube (13) are installed to a side of water tank (14), water tank (14) internal assembly has water pump (15), water pump (15) are connected with conveyer pipe (16), water pump (15) are connected with cylinder water storage piece (18) through conveyer pipe (16).
2. The automatic air chamber cleaning system of the air pollution online monitoring equipment as claimed in claim 1, characterized in that four groups of supporting blocks (4) are installed at the lower end of the online monitoring equipment box (1), a box cover (6) is installed at the upper end of the online monitoring equipment box (1), a box door (5) is installed at one side of the online monitoring equipment box (1), an air inlet pipe (8) is installed at one side of the air chamber box (21), a first air pump (7) is assembled on the air inlet pipe (8), a dust cleaning pipe (9) is installed at one side of the air chamber box (21) and positioned at the upper side of the air inlet pipe (8), a blow-off pipe (3) is installed at one side of the air chamber box (21) and far away from the air inlet pipe (8), a second air pump (26) is installed on the blow-off pipe (3), an air outlet pipe (2) is installed at one side of, control valves are arranged on the air inlet pipe (8), the sewage discharge pipe (3), the air outlet pipe (2) and the ash removal pipe (9).
3. The automatic cleaning system for the air chamber of the air pollution online monitoring equipment according to claim 1, wherein a splicing groove (121) is formed in one side, close to the second cover plate (20), of the first cover plate (12), a splicing block (201) is installed on one side, close to the first cover plate (12), of the second cover plate (20), and the splicing groove (121) is matched with the splicing block (201).
4. The automatic cleaning system for the air chamber of the on-line air pollution monitoring equipment according to claim 1, wherein a circular sealing groove (25) is formed in the upper end surface of the air chamber box (21), semicircular sealing lugs are mounted on the lower end surfaces of the first cover plate (12) and the second cover plate (20), and the sealing lugs are matched with the sealing groove (25);
the diameter of cylinder water storage piece (18) is less than the aperture of circular port (11), conveyer pipe (16) are tensile corrugated hose.
5. The automatic cleaning system for the air chamber of the air pollution online monitoring equipment according to claim 1, characterized in that a controller is installed inside the online monitoring equipment box (1), the controller is in data connection with a database, and the controller is in bidirectional data connection with the database;
the controller comprises a dust analysis module, a data acquisition module, a cleaning acceptance module and a cleaning allocation module, wherein the data acquisition module is used for acquiring dust data of the air chamber box (21), and the data acquisition module is specifically a first dust sensor arranged at an inlet of the air inlet pipe (8), a second dust sensor arranged at an inlet, a third dust sensor arranged at an inlet of the air outlet pipe (2) and a fourth dust sensor arranged at an outlet; the dust data comprises dust inlet amount, dust outlet amount and dust retention amount;
the data acquisition module transmits the acquired dust data to the dust analysis module; the dust analysis module is used for analyzing the dust data of the air chamber box (21), and the analysis steps are as follows:
the method comprises the following steps: acquiring a primary ash feeding amount JH1, a secondary ash feeding amount JH2, a primary ash discharging amount CH1 and a secondary ash discharging amount CH2 of the air chamber box (21);
step two: calculating the difference value of the primary ash feeding amount JH1 and the secondary ash feeding amount JH2 to obtain a primary ash stagnation amount ZH 1; calculating the difference value of the primary ash discharge CH1 and the secondary ash discharge CH2 to obtain a secondary ash stagnation amount ZH 1;
step three: acquiring the dust amount in the air chamber box (21), and marking the dust amount in the air chamber box (21) as HC;
step four: obtaining the residual dust quantity L in the air chamber box (21) by using a formula L as HC-CH 1;
step five: the dust residual quantity L is combined with the primary ash retention quantity ZH1 and the secondary ash retention quantity ZH1, a dust value Z1 of the air chamber box (21) is obtained through calculation of a dust analysis module, and the formula is as follows:
Z1＝L×a1+ZH1×a2+ZH1×a3；
step six: if the dust value Z1 of the air chamber box (21) is larger than the dust threshold value, judging that the dust amount in the air chamber box (21) exceeds the standard, generating a dust exceeding signal, and loading the dust exceeding signal into a controller;
and after the controller receives the dust exceeding signal, the second air pump (26), the electric telescopic rod (17), the micro motor (24) and the water pump (15) work.
6. The automatic cleaning system for the air chamber of the on-line air pollution monitoring device as claimed in claim 5, wherein the cleaning acceptance module is used for accepting the cleaning work of the air chamber box (21), and the acceptance process is as follows:
s1: collecting the dust amount H1 in the air inlet pipe (8), the dust amount H2 in the air outlet pipe (2) and the dust amount H3 in the air chamber box (21) again through the first dust sensor, the second dust sensor, the third dust sensor and the fourth dust sensor;
s2: calculating a dust value Z2 of the air outlet chamber box (21) after cleaning by using a formula Z2-H1 xb 1+ H2 xb 2+ H3 xb 3;
s3: if the dust value Z2 exceeds the dust threshold value, judging that the dust amount in the air chamber box (21) exceeds the standard, generating an unqualified cleaning signal, and loading the unqualified cleaning signal into the controller;
s4: the controller receives the unqualified cleaning signal and then produces a cleaning allocation instruction, and the cleaning allocation instruction is sent to the cleaning allocation module;
s5: the cleaning and blending module respectively blends the working time of the water pump (15) and the second air pump (26) and the cleaning water quantity of the water tank (14).
7. The automatic cleaning system for the air chamber of the on-line air pollution monitoring device as claimed in claim 5, wherein the cleaning and blending module is used for blending the cleaning work of the air chamber box (21), and the blending process is as follows:
SS 1: if the dust value Z2 is larger than the dust threshold value, calculating the difference value ZC between the dust value Z2 of the cleaned air chamber box (21) and the dust threshold value;
SS 2: respectively calculating the difference between the primary ash retention amount ZH1 and the dust amount H1, the difference between the secondary ash retention amount ZH1 and the dust amount H2, and the difference between the dust residual amount L and the dust amount H3 to correspondingly obtain dust removal amounts QC1, QC2 and QC 3;
SS 3: calculating the difference between the starting and stopping time of the second air pump (26) and the water pump (15) to obtain the working time T1 of the second air pump (26) and the working time T2 of the water pump (15);
SS 4: calculating the ash removal rate Sq of the second air pump (26) by using a formula Sq ═ QC1+ QC2+ QC 3)/T1; calculating the ash removal rate Ss of the water pump (15) by using a formula Ss as QC 3/T2;
SS 5: the increased working time TZq of the second air pump (26) is obtained by calculating (QC1+ QC2+ QC3)/Sq again according to the formula TZq; TZs, calculating the required increased working time TZs of the water pump (15) by QC 3/Ss;
SS 6: the calculated work time of the second air pump (26) and the water pump (15) needing to be increased is sent to the controller through the cleaning and allocating module, and the controller loads the increased work time into the second air pump (26) and the water pump (15).
8. An automatic cleaning method for an air chamber of an air pollution online monitoring device is characterized by comprising the following specific steps of:
the method comprises the steps that firstly, the dust analysis module is used for analyzing the dust amount in an air chamber box (21), a controller controls a water pump (15), a second air pump (26) and a micro motor (24) to work after the dust amount exceeds the standard, the micro motor (24) drives a rotating block (23) to rotate through a rotating shaft (10), the rotating block (23) drives a first cover plate (12) and a second cover plate (20) to be opened, a splicing block (201) is separated from a splicing groove (121), a sealing lug is separated from a sealing groove (25), and at the moment, a circular hole (11) is opened;
step two, closing a control valve on the sewage discharge pipe (3), opening control valves on the air inlet pipe (8) and the air outlet pipe (2), enabling a second air pump (26) to work, enabling outside air to enter the air chamber box (21) through an ash removal pipe (9), cleaning dust remained in the air inlet pipe (8) through reverse flow of air, and meanwhile, enabling the dust in the air outlet pipe (2) to be discharged through external flow under the action of the air;
step three, the second air pump (26) stops working, the electric telescopic rod (17) is electrified to work and descend, the cylindrical water storage block (18) enters the air chamber box (21) through the circular hole (11), the water pump (15) is electrified to work, a water source in the water tank (14) is conveyed to the cylindrical water storage block (18) through the conveying pipe (16) and is sprayed out through the spraying and washing head (19), the sprayed water source washes and cleans the inside of the air chamber box (21), and sewage generated by washing is discharged through the sewage discharge pipe (3);
and step four, checking and accepting the dust cleaning work in the air chamber box (21) through the cleaning and accepting module, readjusting the working time of the second air pump (26) and the water pump (15) through the cleaning and allocating module when the checking and accepting are not proper, and increasing the corresponding working time of the second air pump (26) and the water pump (15) until the dust cleaning work in the air chamber box (21) reaches the standard.
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