CN112665677B - Automatic cleaning system and method for air chamber of air pollution on-line monitoring equipment - Google Patents
Automatic cleaning system and method for air chamber of air pollution on-line monitoring equipment Download PDFInfo
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- CN112665677B CN112665677B CN202011564856.3A CN202011564856A CN112665677B CN 112665677 B CN112665677 B CN 112665677B CN 202011564856 A CN202011564856 A CN 202011564856A CN 112665677 B CN112665677 B CN 112665677B
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Abstract
The invention discloses an automatic cleaning system and method for an air chamber of on-line air pollution monitoring equipment, wherein the automatic cleaning system comprises a first cover plate, a water pump, an electric telescopic rod, a cylindrical water storage block, a spray head, a second cover plate, a micro motor and a second air pump, wherein the upper end surface of an air chamber box is provided with two groups of micro motors, the first cover plate is arranged on the inner side of a rotating block, the second cover plate is arranged 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 arranged on the upper side of the inner wall of the on-line monitoring equipment box, the lower end of the electric telescopic rod is provided with the cylindrical water storage block, the annular side surface of the cylindrical water storage block is provided with a plurality of spray heads, and the water pump is arranged in the water tank.
Description
Technical Field
The invention belongs to the technical field of air pollution monitoring, relates to automatic cleaning of an air chamber, and in particular relates to an automatic cleaning system and an automatic cleaning method of the air chamber of air pollution on-line monitoring equipment.
Background
Air pollution, also known as atmospheric pollution, is generally defined by the international organization for standardization as a phenomenon in which certain substances enter the atmosphere due to human activities or natural processes, exhibit sufficient concentrations, reach sufficient times, and thus jeopardize human comfort, health, and welfare or the environment. Air pollution monitoring refers to the point-of-site, 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, an automatic monitoring instrument is installed for continuous automatic monitoring, and monitoring results are periodically retrieved by a dispatcher for analysis and related data are obtained. The items of air monitoring mainly include sulfur dioxide, nitric oxide, hydrocarbons, floating dust, etc. Air monitoring is the basis for air quality control and reasonable assessment of air quality.
The air chamber of air pollution on-line monitoring equipment can't realize self-cleaning, needs the manual work to clear up under most circumstances, and manual cleaning drawback is: the dust amount in the air chamber box cannot be known in time, and the manual cleaning efficiency is low; at present, although some mechanical cleaning devices exist, the dust cleaning work cannot be accepted, so that the dust cleaning work is low in quality, and therefore, an automatic air chamber cleaning system and an automatic air chamber cleaning method for the air pollution online monitoring device are provided.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an automatic cleaning system and an automatic cleaning method for an air chamber of air pollution on-line monitoring equipment.
The technical problems to be solved by the invention are as follows:
the air chamber of the air pollution on-line monitoring equipment cannot realize automatic cleaning, 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 manual cleaning; at present, although some mechanical cleaning devices exist, the dust cleaning work cannot be accepted, so that the dust cleaning work is low in quality.
The aim of the invention can be achieved by the following technical scheme:
the utility model provides an air chamber self-cleaning system of air pollution on-line monitoring equipment, includes on-line monitoring equipment box and installs the inside air chamber box of on-line monitoring equipment box, the circular hole has been seted up to the inside upside of air chamber box, air chamber box up end is equipped with two sets of micro-motors, two sets of micro-motor's output is connected with the axis of rotation, the axis of rotation runs through a set of fixed block, the one end that the micro-motor was kept away from to the axis of rotation rotates with the fixed block to be connected, install the turning block in the axis of rotation, the first apron is installed to the turning block inboard, the second apron is installed to the air chamber box up end and is located one side of first apron, the turning block is installed to one side that the second apron kept away from first apron, turning block internally mounted has the axis of rotation, the axis of rotation is connected with the micro-motor;
the on-line monitoring equipment box inner wall upside is equipped with electric telescopic handle, the cylinder water storage piece is installed to electric telescopic handle lower extreme, a plurality of spray rinsing head is installed to the annular side of cylinder water storage piece, on-line monitoring equipment box inner wall upside just is located one side of electric telescopic handle and is equipped with the water tank, the inlet tube is installed to one side of water tank, the 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 groups of supporting blocks are installed at the lower end of the on-line monitoring equipment box, a box cover is installed at the end of the on-line monitoring equipment box, a box door is installed on one side of the on-line monitoring equipment box, an air inlet pipe is installed on one side of the air chamber box, a first air pump is assembled on the air inlet pipe, an ash removal pipe is installed on one side of the air chamber box and located on the upper side of the air inlet pipe, a drain pipe is installed on one side of the air chamber box and far away from the air inlet pipe, a second air pump is installed on the drain pipe, an air outlet pipe is installed on one side of the air chamber box and located on the upper side of the drain pipe, and a control valve is installed on each of the air inlet pipe, the drain pipe, the air outlet pipe and the ash removal pipe.
Further, a splicing groove is formed in one side, close to the second cover plate, of the first cover plate, a splicing block is arranged on one side, close to the first cover plate, of the second cover plate, and the splicing groove is matched with the splicing block.
Further, a circular sealing groove is formed in the upper end face of the air chamber box, semicircular sealing convex blocks are arranged on the lower end faces of the first cover plate and the second cover plate, and the sealing convex blocks are matched with the sealing groove;
the diameter of the cylindrical water storage block is smaller than that of the circular hole, and the conveying pipe is a stretchable corrugated hose.
Further, a controller is installed in 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 is specifically a first dust sensor installed at an inlet of an air inlet pipe, a second dust sensor installed at an inlet, a third dust sensor installed at an inlet of an air outlet pipe and a fourth dust sensor installed at an outlet; the dust data comprises ash inlet amount, ash outlet amount and ash stagnation amount;
the data acquisition module sends the acquired dust data to the dust analysis module; the dust analysis module is used for analyzing dust data of the air chamber box, and the analysis steps are as follows:
step one: acquiring a primary ash inlet amount JH1, a secondary ash inlet amount JH2, a primary ash outlet amount CH1 and a secondary ash outlet amount CH2 of the air chamber box;
step two: calculating the difference between the primary ash inlet amount JH1 and the secondary ash inlet amount JH2 to obtain a primary ash stagnation amount ZH1; calculating the difference value between the primary ash discharge CH1 and the secondary ash discharge CH2 to obtain a secondary ash stagnation ZH1;
step three: acquiring the dust amount in the air chamber box, and marking the dust amount in the air chamber box as HC;
step four: obtaining the dust residue L in the air chamber box by using a formula L=HC-CH 1;
step five: the dust residual quantity L is combined with the primary dust stagnation quantity ZH1 and the secondary dust stagnation quantity ZH1, and the dust value Z1 of the air chamber box is obtained through calculation of the dust analysis module, and the formula is specifically 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 receiving the dust exceeding signal, the controller works with the second air pump, the electric telescopic rod, the micro motor and the water pump.
Further, the cleaning acceptance module is used for accepting the cleaning work of the air chamber box, and the acceptance process is specifically as follows:
s1: collecting dust amount H1 in the air inlet pipe, dust amount H2 in the air outlet pipe and 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 of the cleaned air chamber box by using a formula Z2=H2+H2Xb1+H2Xb2+H2+H23;
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 a cleaning unqualified signal, and loading the cleaning unqualified signal into the controller;
s4: the controller receives the cleaning disqualification 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 and the second air pump and the cleaning water quantity of the water tank respectively.
Further, the cleaning and allocating module is used for allocating the cleaning work of the air chamber box, and the allocating process is specifically as follows:
SS1: if the dust value Z2 is larger than the dust threshold value, calculating a difference value ZC between the dust value Z2 and the dust threshold value after the air chamber box is cleaned;
SS2: respectively calculating the difference value between the primary ash stagnation amount ZH1 and the dust amount H1, the difference value between the secondary ash stagnation amount ZH1 and the dust amount H2, and the difference value between the dust residual amount L and the dust amount H3, and correspondingly obtaining dust removal amounts QC1, QC2 and QC3;
SS3: calculating the start-stop time difference of the second air pump and the water pump to obtain the working time T1 of the second air pump and the working time T2 of the water pump;
SS4: calculating to obtain the ash removal rate Sq of the second air pump by using a formula Sq= (QC1+QC2+QC3)/T1; calculating to obtain the ash removal rate Ss of the water pump by using a formula Ss=QC3/T2;
SS5: the working time TZq of the second air pump, which needs to be increased, is calculated by using the formula TZq = (QC1+QC2+QC3)/Sq again; TZs =qc 3/Ss calculated to give a water pump requiring increased working time TZs;
SS6: the calculated working time required to be increased by the second air pump and the water pump is sent to the controller through the cleaning and blending module, and the controller loads the increased working time to the second air pump and the water pump.
An automatic cleaning method for an air chamber of an on-line air pollution monitoring device comprises the following specific steps:
step one, analyzing the dust amount in the air chamber box through a dust analysis module, controlling the water pump, the second air pump and the micro motor to work through a controller after the dust amount exceeds the standard, driving the rotating block to rotate through the rotating shaft by the micro motor, driving the first cover plate and the second cover plate to open by the rotating block, separating the splicing block from the splicing groove, separating the sealing convex block from the sealing groove, and opening the circular hole at the moment;
step two, closing a control valve on the blow-down pipe, opening the control valves on the air inlet pipe and the air outlet pipe, enabling the second air pump to work, enabling external air to enter the air chamber box through the ash cleaning pipe, cleaning dust retained in the air inlet pipe through reverse flow of air, and enabling the dust in the air outlet pipe to continuously flow and be discharged to the outside under the action of the air;
step three, the second air pump stops working, the electric telescopic rod is electrified to 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 spray head, the sprayed water source washes and cleans the air chamber box, and sewage generated by flushing is discharged through the sewage discharge pipe;
and step four, checking and accepting dust cleaning work in the air chamber box through a cleaning and accepting module, and readjusting working time of the second air pump and the water pump through a cleaning and allocating module when the checking and accepting are inappropriate, wherein the second air pump and the water pump increase corresponding working time 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. the invention can realize automatic cleaning of the air chamber of the air pollution on-line monitoring equipment by the matched use of the electric telescopic rod, the water pump, the spray head, the second air pump and other parts, thereby avoiding manual cleaning of the air chamber of the air pollution on-line monitoring equipment, and realizing timely and efficient cleaning;
2. according to the invention, the dust analysis module is used for analyzing the dust content in the air chamber of the air pollution on-line monitoring equipment, when the analysis exceeds the standard, the corresponding equipment is controlled to automatically clean the air chamber, after cleaning, the cleaning work is checked and accepted by the cleaning and acceptance module, and when the checking and acceptance are disqualified, the working time of the second air pump and the water pump is regulated by the cleaning and allocation module 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 on-line monitoring equipment is effectively ensured.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of the air chamber box in the invention;
FIG. 4 is a top view of a plenum box of the present invention;
FIG. 5 is a top cross-sectional view of the plenum box of the present invention;
FIG. 6 is a schematic view of the structure of the first cover plate and the second cover plate in the present invention;
fig. 7 is a system block diagram of the present invention.
In the figure: 1. on-line monitoring equipment boxes; 2. an air outlet pipe; 3. a blow-down pipe; 4. a support block; 5. a door; 6. a case cover; 7. a first air pump; 8. an air inlet pipe; 9. an ash removal pipe; 10. a rotating shaft; 11. a circular hole; 12. a first cover plate; 121. a splice groove; 13. a water inlet pipe; 14. a water tank; 15. a water pump; 16. a delivery tube; 17. an electric telescopic rod; 18. a cylindrical water storage block; 19. a spray head; 20. a second cover plate; 201. splicing blocks; 21. an air chamber box; 22. a fixed block; 23. a rotating block; 24. a micro motor; 25. sealing the groove; 26. and a second air pump.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, an air chamber automatic cleaning system of an air pollution on-line monitoring device comprises an on-line 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 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 arranged at the lower end of the on-line monitoring equipment box 1, a box cover 6 is arranged at the upper end of the on-line monitoring equipment box 1, a box door 5 is arranged on one side surface of the on-line monitoring equipment box 1, an air chamber box 21 is arranged in the on-line monitoring equipment box 1, an air inlet pipe 8 is arranged on one side surface of the air chamber box 21, a dust removal pipe 9 is arranged on the upper side of the air inlet pipe 8, a blow-down pipe 3 is arranged on one side surface of the air chamber box 21, which is far away from the air inlet pipe 8, a second air pump 26 is arranged on the blow-down pipe 3, and an air outlet pipe 2 is arranged on one side surface of the air chamber box 21 and on the upper side of the blow-down pipe 3;
wherein, the air inlet pipe 8, the blow-down pipe 3, the air outlet pipe 2 and the ash cleaning pipe 9 are all provided with control valves;
the upper side of the inside of the air chamber box 21 is provided with a circular hole 11, the upper end surface 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 one group of fixed blocks 22, one end of the rotating shaft 10 far away from the micro motors 24 is rotationally connected with the fixed blocks 22, a rotating block 23 is arranged on the rotating shaft 10, a first cover plate 12 is arranged on the inner side of the rotating block 23, the upper end surface of the air chamber box 21 is provided with a second cover plate 20 which is positioned on one side of the first cover plate 12, one side of the second cover plate 20 far away from the first cover plate 12 is provided with the rotating block 23, the rotating shaft 10 is internally arranged in the rotating block 23, and the rotating shaft 10 is connected with the micro motors 24;
wherein, a splice groove 121 is formed on one side of the first cover plate 12 close to the second cover plate 20, a splice block 201 is mounted on one side of the second cover plate 20 close to the first cover plate 12, and the splice groove 121 is matched with the splice block 201;
the upper end face of the air chamber box 21 is provided with a circular sealing groove 25, semicircular sealing convex blocks are arranged on the lower end faces of the first cover plate 12 and the second cover plate 20, and the sealing convex blocks are matched with the sealing groove 25;
an electric telescopic rod 17 is arranged on the upper side of the inner wall of the online monitoring equipment box 1, a cylindrical water storage block 18 is arranged at the lower end of the electric telescopic rod 17, a plurality of spray heads 19 are arranged on the annular side surface of the cylindrical water storage block 18, a water tank 14 is arranged on the upper side of the inner wall of the online monitoring equipment box 1 and positioned on one side of the electric telescopic rod 17, a water inlet pipe 13 is arranged on one side surface of the water tank 14, a water pump 15 is arranged in the water tank 14, the water pump 15 is connected with a conveying pipe 16, and the water pump 15 and the cylindrical water storage block 18 are connected through the conveying pipe 16;
wherein the diameter of the cylindrical water storage block 18 is smaller than the diameter of the circular hole 11, the conveying pipe 16 is a stretchable corrugated hose, and the conveying pipe 16 is reserved with a sufficient length;
the controller is arranged in the on-line monitoring equipment box 1, is in data connection with a database, is in bidirectional data connection with the database, and 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 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 ash inlet amount, ash outlet amount and ash stagnation amount;
the data acquisition module sends the acquired dust data to the dust analysis module; the dust analysis module is used for analyzing dust data of the air chamber box 21, and the analysis steps are specifically as follows:
step one: acquiring a primary ash inlet amount JH1, a secondary ash inlet amount JH2, a primary ash outlet amount CH1 and a secondary ash outlet amount CH2 of the air chamber box 21;
step two: calculating the difference between the primary ash inlet amount JH1 and the secondary ash inlet amount JH2 to obtain a primary ash stagnation amount ZH1; calculating the difference value between the primary ash discharge CH1 and the secondary ash discharge CH2 to obtain a secondary ash stagnation ZH1;
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 a dust remaining amount L in the air chamber case 21 by using the formula l=hc-CH 1;
step five: the dust residual quantity L is combined with the primary dust stagnation quantity ZH1 and the secondary dust stagnation quantity ZH1, and the dust value Z1 of the air chamber box 21 is calculated by a dust analysis module, and the formula is specifically 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 receiving the dust exceeding signal, the controller works with the second air pump 26, the electric telescopic rod 17, the micro motor 24 and the water pump 15;
specifically, the primary ash inlet amount JH1 is detected by a first dust sensor, the secondary ash inlet amount JH2 is detected by a second dust sensor, the primary ash outlet amount CH1 is detected by a third dust sensor, the secondary ash outlet amount CH2 is detected by a fourth dust sensor, the primary ash stagnation amount ZH1 is the dust retention in the air inlet pipe 8, and the secondary ash stagnation amount ZH2 is the dust retention 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 specifically 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: the dust value Z2 after cleaning of the air cell 21 is calculated using the formula z2=h1×b1+h2×b2+h3×b3;
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 a cleaning unqualified signal, and loading the cleaning unqualified signal into the controller;
s4: the controller receives the cleaning disqualification 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, the working time of the second air pump 26 and the cleaning water quantity of the water tank 14;
the cleaning and blending module is used for blending cleaning work of the air chamber box 21, and the blending process is specifically as follows:
SS1: if the dust value Z2 is greater than the dust threshold value, calculating a difference ZC between the dust value Z2 and the dust threshold value after the cleaning of the air chamber box 21;
SS2: respectively calculating the difference value between the primary ash stagnation amount ZH1 and the dust amount H1, the difference value between the secondary ash stagnation amount ZH1 and the dust amount H2, and the difference value between the dust residual amount L and the dust amount H3, and correspondingly obtaining dust removal amounts QC1, QC2 and QC3;
SS3: calculating the start-stop time difference 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;
SS4: calculating to obtain the ash removal rate Sq of the second air pump 26 by using a formula Sq= (QC1+QC2+QC3)/T1; calculating to obtain the ash removal rate Ss of the water pump 15 by using a formula ss=QC3/T2;
SS5: the working time TZq required to be increased for the second air pump 26 is calculated again by using the formula TZq = (qc1+qc2+qc3)/Sq; TZs =qc 3/Ss calculated to give the water pump 15 a required increased working time TZs;
SS6: the calculated working time required to be increased by the second air pump 26 and the water pump 15 is sent to the controller through the cleaning and blending module, and the controller loads the increased working time to the second air pump 26 and the water pump 15;
the above formulas are all formulas with dimensionality removed and numerical value calculated, the formulas are formulas with a large amount of data collected for software simulation to obtain the latest real situation, and preset parameters in the formulas are set by those skilled in the art according to the actual situation.
Example two
An automatic cleaning method for an air chamber of an on-line air pollution 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 the 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 be opened 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 a control valve on the blow-down pipe 3, opening control valves on the air inlet pipe 8 and the air outlet pipe 2, enabling the second air pump 26 to work, enabling external air to enter the air chamber box 21 through the ash cleaning pipe 9, cleaning dust retained in the air inlet pipe 8 through reverse flow of air, and simultaneously enabling the dust in the air outlet pipe 2 to continuously flow and be discharged to the outside under the action of the air;
step three, the second air pump 26 stops working, the electric telescopic rod 17 is electrified to 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 sprayed out through the spray head 19, the sprayed water source washes and cleans the inside of the air chamber box 21, and sewage generated by flushing is discharged through the sewage discharge pipe 3;
step four, checking and accepting the dust cleaning work in the air chamber box 21 through the cleaning and accepting module, and 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 is improper, 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 only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form 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 understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
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 inside air chamber box (21) of on-line monitoring equipment case (1), its characterized in that, circular hole (11) have been seted up to air chamber box (21) inside upside, air chamber box (21) up end is equipped with two sets of micro-motors (24), two sets of the output of micro-motors (24) is connected with axis of rotation (10), axis of rotation (10) run through a set of fixed block (22), the one end that micro-motors (24) were kept away from to 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 one side that air chamber box (21) up end and are located first apron (12), turning block (23) are installed to one side that second apron (20) kept away from first apron (12), turning block (23) internally mounted has axis of rotation (10), axis of rotation (10) are connected with micro-motors (24).
The online monitoring equipment box is characterized in that an electric telescopic rod (17) is arranged on the upper side of the inner wall of the online monitoring equipment box (1), a cylindrical water storage block (18) is arranged at the lower end of the electric telescopic rod (17), a plurality of spray heads (19) are arranged on the annular side face of the cylindrical water storage block (18), a water tank (14) is arranged on the upper side of the inner wall of the online monitoring equipment box (1) and positioned on one side of the electric telescopic rod (17), a water inlet pipe (13) is arranged on one side face of the water tank (14), a water pump (15) is arranged in the water tank (14), a conveying pipe (16) is connected to the water pump (15), and the water pump (15) is connected with the cylindrical water storage block (18) through the conveying pipe (16);
a controller is arranged in the online monitoring equipment box (1), the controller is connected with a database in a data way, and the controller is connected with the database in a two-way data way;
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 the inlet of the air inlet pipe (8), a second dust sensor arranged at the inlet, a third dust sensor arranged at the inlet of the air outlet pipe (2) and a fourth dust sensor arranged at the outlet; the dust data comprises ash inlet amount, ash outlet amount and ash stagnation amount;
the data acquisition module sends the acquired dust data to the dust analysis module; the dust analysis module is used for analyzing dust data of the air chamber box (21), and the analysis steps are as follows:
step one: acquiring a primary ash inlet amount JH1, a secondary ash inlet amount JH2, a primary ash outlet amount CH1 and a secondary ash outlet amount CH2 of the air chamber box (21);
step two: calculating the difference between the primary ash inlet amount JH1 and the secondary ash inlet amount JH2 to obtain a primary ash stagnation amount ZH1; calculating the difference value of the primary ash discharge CH1 and the secondary ash discharge CH2 to obtain a secondary ash stagnation ZH2;
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 dust residual quantity L in the air chamber box (21) by using a formula L=HC-CH 1;
step five: the dust residual quantity L is combined with the primary dust stagnation quantity ZH1 and the secondary dust stagnation quantity ZH2, and the dust value Z1 of the air chamber box (21) is obtained through calculation of the dust analysis module, and the formula is specifically as follows:
Z1＝L×a1+ZH1×a2+ZH2×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 receiving the dust exceeding signal, the controller controls the second air pump (26), the electric telescopic rod (17), the micro motor (24) and the water pump (15) to work;
the cleaning acceptance module is used for accepting the cleaning work of the air chamber box (21), and the acceptance process is specifically as follows:
s1: collecting dust amount H1 in the air inlet pipe (8), dust amount H2 in the air outlet pipe (2) and 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: calculation using the formula z2=h1×b1+h2×b2+h3×b3 obtaining a dust value Z2 of the cleaned air chamber box (21);
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 a cleaning unqualified signal, and loading the cleaning unqualified signal into the controller;
s4: the controller receives the cleaning disqualification 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), the working time of the second air pump (26) and the cleaning water quantity of the water tank (14);
the cleaning and blending module is used for blending cleaning work of the air chamber box (21), and the blending process is specifically as follows:
SS1: if the dust value Z2 is larger than the dust threshold value, calculating a difference value ZC between the dust value Z2 and the dust threshold value after the air chamber box (21) is cleaned;
SS2: respectively calculating the difference value between the primary ash stagnation amount ZH1 and the dust amount H1, the difference value between the secondary ash stagnation amount ZH2 and the dust amount H2, and the difference value between the dust residual amount L and the dust amount H3, and correspondingly obtaining dust removal amounts QC1, QC2 and QC3;
SS3: calculating the start-stop time difference 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);
SS4: calculating to obtain the ash removal rate Sq of the second air pump (26) by using a formula Sq= (QC1+QC2+QC3)/T1; calculating to obtain the ash removal rate Ss of the water pump (15) by using a formula Ss=QC3/T2;
SS5: calculating the working time TZq required to be increased by the second air pump (26) by using the ash removal rate Sq again; calculating to obtain the working time TZs required to be increased of the water pump (15) by using the ash removal rate Ss;
SS6: the calculated working time required to be increased by the second air pump (26) and the water pump (15) is sent to the controller through the cleaning and blending module, and the controller loads the increased working time to the second air pump (26) and the water pump (15).
2. The automatic cleaning system for the air chamber of the on-line monitoring equipment for air pollution, according to claim 1, is characterized in that four groups of supporting blocks (4) are installed at the lower end of the on-line monitoring equipment box (1), a box cover (6) is installed at the upper end of the on-line monitoring equipment box (1), a box door (5) is installed on one side of the on-line monitoring equipment box (1), an air inlet pipe (8) is installed on one side of the air chamber box (21), a dust removal pipe (9) is installed on one side 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 of the air chamber box (21) and far away from the air inlet pipe (8), a second air pump (26) is installed on the drain pipe (3), an air outlet pipe (2) is installed on one side of the air chamber box (21) and located on the upper side of the drain pipe (3), and control valves are installed on the air inlet pipe (8), the drain pipe (3), the air outlet pipe (2) and the dust removal pipe (9).
3. The automatic air chamber cleaning system of the on-line air pollution monitoring device 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 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).
4. The automatic cleaning system for the air chamber of the air pollution on-line monitoring equipment according to claim 1, wherein the upper end face of the air chamber box (21) is provided with a circular sealing groove (25), the lower end faces of the first cover plate (12) and the second cover plate (20) are provided with semicircular sealing convex blocks, and the sealing convex blocks are matched with the sealing groove (25);
the diameter of the cylindrical water storage block (18) is smaller than the diameter of the circular hole (11), and the conveying pipe (16) is a stretchable corrugated hose.
5. An automatic cleaning method for an air chamber of an air pollution on-line monitoring device, based on the automatic cleaning system for the air chamber of the air pollution on-line monitoring device as set forth in any one of claims 1 to 4, comprising 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);
step two, closing a control valve on the blow-down pipe (3), opening the control valves on the air inlet pipe (8) and the air outlet pipe (2), enabling the second air pump (26) to work, enabling external air to enter the air chamber box (21) through the ash cleaning pipe (9), cleaning dust retained in the air inlet pipe (8) through reverse flow of air, and enabling the dust in the air outlet pipe (2) to continuously flow and be discharged to the outside under the action of the air;
step three, the second air pump (26) stops working, the electric telescopic rod (17) is electrified to 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 sprayed out through the spray head (19), the sprayed water source washes and cleans the inside of the air chamber box (21), and sewage generated by flushing is discharged through the sewage discharge pipe (3);
and step four, checking and accepting dust cleaning work in the air chamber box (21) through a cleaning and accepting module, and readjusting working time of the second air pump (26) and the water pump (15) through a cleaning and allocating module when the checking and accepting are improper, wherein the second air pump (26) and the water pump (15) increase corresponding working time until the dust cleaning work in the air chamber box (21) reaches the standard.
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