CN116481374B - MVR evaporation equipment self-cleaning device - Google Patents
MVR evaporation equipment self-cleaning device Download PDFInfo
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- CN116481374B CN116481374B CN202310427326.1A CN202310427326A CN116481374B CN 116481374 B CN116481374 B CN 116481374B CN 202310427326 A CN202310427326 A CN 202310427326A CN 116481374 B CN116481374 B CN 116481374B
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- 238000004140 cleaning Methods 0.000 title claims abstract description 247
- 238000001704 evaporation Methods 0.000 title claims abstract description 123
- 230000008020 evaporation Effects 0.000 title claims abstract description 123
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 239000007921 spray Substances 0.000 claims abstract description 53
- 238000005507 spraying Methods 0.000 claims abstract description 46
- 238000009792 diffusion process Methods 0.000 claims description 25
- 230000004580 weight loss Effects 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000007790 scraping Methods 0.000 claims description 6
- 238000012546 transfer Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 13
- 238000005406 washing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- CLOMYZFHNHFSIQ-UHFFFAOYSA-N clonixin Chemical compound CC1=C(Cl)C=CC=C1NC1=NC=CC=C1C(O)=O CLOMYZFHNHFSIQ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention relates to the technical field of evaporation equipment, in particular to an automatic cleaning device of MVR evaporation equipment, which comprises: the cleaning tank is used for storing the recycled cleaning liquid; the power module is connected with the cleaning tank and is used for providing power for circularly cleaning the evaporation body by the cleaning liquid; the conveying module is respectively connected with the cleaning tank and the power module; the cleaning module is respectively connected with the power module and the conveying module and is used for cleaning the evaporation main body; the central control module is used for adjusting the spraying flow of the telescopic spray head to a corresponding flow according to the increase rate of the dirt volume output by the evaporation main body, and adjusting the cleaning liquid replacement period to a corresponding period according to the actual pressure of the conveying pipeline detected by the pressure sensor; the invention realizes the improvement of cleaning accuracy and comprehensiveness.
Description
Technical Field
The invention relates to the technical field of evaporation equipment, in particular to an automatic cleaning device for MVR evaporation equipment.
Background
The cleaning system for MVR evaporation equipment in the prior art is generally a circulation system, but the circulation process also causes the diffusion of pollutants such as dirt.
Chinese patent publication No.: CN211585258U discloses an online self-cleaning device of MVR evaporation plant, including sour jar and alkali jar, sour jar and alkali jar are connected with the wash jar jointly through the pipeline, be connected with the wash pump on the wash jar, the wash pump has the pond of storing concentrate B through the pipe connection, the heat exchanger has former liquid pump through the pipe connection, evaporator main part and concentrate pump, the concentrate pump has the circulating pump through the pipe connection, the circulating pump passes through the pipe connection in the evaporator main part, the pipeline of connecting between concentrate pump and the circulating pump is connected in the evaporator main part, the evaporator main part is connected through pipeline and heat exchanger, the beneficial effect that the invention reached is: the safety of operators is protected, the cleaning liquid splashing phenomenon can occur when strong acid and strong alkali are adopted for manually preparing the medicament and manually operating the valve in the pipeline cleaning, the bare skin is easy to burn, and the automatic cleaning device is changed into the computer operation of operators; it follows that the following problems are present: the circulation of the cleaning liquid causes the diffusion of dirt and the influence of the uneven areas present inside the evaporation device on the cleaning accuracy.
Disclosure of Invention
Therefore, the invention provides an automatic cleaning device for MVR evaporation equipment, which is used for solving the problems of dirt diffusion caused by circulation of cleaning liquid and influence of uneven areas in the evaporation equipment on cleaning accuracy in the prior art.
To achieve the above object, the present invention provides an automatic cleaning device for MVR evaporation equipment, comprising: the cleaning tank is used for storing the recycled cleaning liquid, and a weight sensor used for detecting the weight of the cleaning liquid is arranged below the cleaning tank; the power module is connected with the cleaning tank and used for providing power for circularly cleaning the evaporation body by the cleaning liquid and comprises a cleaning pump which is arranged at the input end of the evaporation body and used for providing power for spraying the cleaning liquid; the conveying module is respectively connected with the cleaning tank and the power module and comprises a conveying pipeline connected with the conveying pump for conveying cleaning liquid and a pressure sensor arranged below the conveying pipeline for detecting the pressure of the conveying pipeline; the cleaning module is respectively connected with the power module and the conveying module and is used for cleaning the evaporation main body, and comprises a telescopic spray head connected with the conveying module and used for spraying cleaning liquid into the evaporation main body and a scraping assembly arranged in the evaporation main body and used for scraping dirt; the central control module is respectively connected with the cleaning tank, the power module, the conveying module and the cleaning module, and is used for adjusting the spraying flow of the telescopic spray head to a corresponding flow according to the increasing rate of the dirt volume output by the evaporation main body, adjusting the cleaning liquid replacement period to a corresponding period according to the actual pressure of the conveying pipeline detected by the pressure sensor, and adjusting the rotating speed of the cleaning pump motor to a corresponding rotating speed according to the loss weight of the cleaning liquid; the adjusting position of the spraying flow of the telescopic spray head is a cleaning position corresponding to a sudden change time period of the dirt volume output by the evaporation main body.
Further, the power module further includes:
a transfer pump connected to the cleaning tank for transferring the cleaning liquid to the evaporation body;
and the circulating pump is arranged between the input end and the output end of the evaporation main body and is used for providing the power for circulating the cleaning liquid.
Further, the central control module determines whether the stability of the dirt removal is within the allowable range according to the increase rate of the dirt volume output by the evaporation body, wherein,
the first type of judgment mode is that the central control module judges that the stability of dirt removal is within an allowable range under the condition of presetting a first growth rate;
the second type of judgment mode is that the central control module judges that the stability of dirt removal is lower than an allowable range under the condition of a preset second growth rate, primarily judges that the diffusion degree of dirt exceeds the allowable range, and judges whether the diffusion degree of dirt exceeds the allowable range for the second time according to the actual pressure of the conveying pipeline;
the third type of judgment mode is that the central control module judges that the stability of dirt removal is lower than an allowable range under the condition of a preset third growth rate, and adjusts the spraying flow of the telescopic nozzle to a corresponding flow by calculating the difference value between the growth rate of the dirt volume output by the evaporation main body and the preset second dirt volume growth rate;
The first preset increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body is smaller than or equal to the first preset dirt volume increasing rate; the preset second increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body is larger than the preset first dirt volume increasing rate and smaller than or equal to the preset second dirt volume increasing rate; the preset third growth rate condition is that the growth rate of the dirt volume output by the evaporation body is larger than the preset second dirt volume growth rate; the predetermined first fouling volume increase rate is less than the predetermined second fouling volume increase rate.
Further, the calculation formula of the increase rate of the dirt volume output by the evaporation body is as follows:
wherein R is the increase rate of the volume of dirt output by the evaporation bodyRate, M a For the volume of dirt output by the evaporation body at the end of a unit detection period detected by a visual detector arranged in the dirt storage tank, M b The volume of fouling output by the evaporation body at the initial moment of the unit detection cycle, T, is the duration of the single detection cycle.
Further, the central control module determines three types of adjustment modes of the spraying flow rate aiming at the telescopic spray head according to the difference value of the increase rate of the dirt volume output by the evaporation body and the increase rate of the preset second dirt volume under the condition of the preset third increase rate, wherein,
The first type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head to a preset spraying flow under the condition of a preset first increase rate difference value;
the second type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head to the first spraying flow by using a preset second spraying flow adjustment coefficient under the condition of presetting a second increase rate difference value;
the third type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head to a second spraying flow by using a preset first spraying flow adjustment coefficient under the condition of presetting a third increase rate difference value;
the difference value of the preset first increasing rate is that the difference value of the increasing rate of the dirt volume output by the evaporation body and the increasing rate of the preset second dirt volume is smaller than or equal to the difference value of the preset first dirt volume increasing rate; the preset second increase rate difference condition is that the difference between the increase rate of the dirt volume output by the evaporation body and the preset second dirt volume increase rate is larger than the difference between the preset first dirt volume increase rate and smaller than or equal to the difference between the preset second dirt volume increase rate; the preset third increase rate difference condition is that the difference between the increase rate of the dirt volume output by the evaporation body and the preset second dirt volume increase rate is larger than the difference of the preset second dirt volume increase rate; the preset first dirt volume increase rate difference is less than the preset second dirt volume increase rate difference, and the preset first spray flow adjustment coefficient is less than the preset second spray flow adjustment coefficient.
Further, the central control module determines whether the diffusion degree of dirt exceeds the allowable range according to the actual pressure of the conveying pipeline under the condition of a preset second growth rate, wherein,
the first secondary judgment mode is that the central control module secondarily judges that the diffusion degree of dirt is in an allowable range under a preset first pressure condition;
the second type of secondary judgment mode is that the central control module secondarily judges that the diffusion degree of dirt exceeds the allowable range under the condition of preset second pressure, and the cleaning liquid replacement period is regulated to a corresponding period by calculating the difference value between the actual pressure of the conveying pipeline and the preset first pressure;
the third type of secondary judging mode is that the central control module secondarily judges that the diffusion degree of dirt exceeds the allowable range under the preset second pressure condition, judges that the equipment fault exists in the conveying module and sends out an equipment fault maintenance notification aiming at the conveying module;
the preset first pressure condition is that the actual pressure of the conveying pipeline is smaller than or equal to the preset first pressure; the preset first pressure condition is that the actual pressure of the conveying pipeline is larger than the preset first pressure and smaller than or equal to the preset second pressure; the preset third actual pressure condition is that the actual pressure of the conveying pipeline is larger than the preset second pressure; the preset first pressure is less than the preset second pressure.
Further, the central control module determines three types of adjustment modes for the cleaning liquid replacement period according to the difference value between the actual pressure of the conveying pipeline and the preset first pressure under the preset second pressure condition, wherein,
the first type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to a preset replacement period under the condition of a preset first pressure difference value;
the second type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to the first replacement period by using a preset second replacement period adjusting coefficient under the condition of a preset second pressure difference value;
the third type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to a second replacement period by using a preset first replacement period adjusting coefficient under the condition of presetting a third actual pressure difference value;
the preset first pressure difference condition is that the difference value between the actual pressure of the conveying pipeline and the preset first pressure is smaller than or equal to the preset first pressure difference value; the preset second pressure difference condition is that the difference between the actual pressure of the conveying pipeline and the preset first pressure is larger than the preset first pressure difference and smaller than or equal to the preset second pressure difference; the preset third actual pressure difference condition is that the difference between the actual pressure of the conveying pipeline and the preset first pressure is larger than the preset second pressure difference; the preset first pressure difference value is smaller than the preset second pressure difference value, and the preset first replacement period adjustment coefficient is smaller than the preset second replacement period adjustment coefficient.
Further, the central control module determines two kinds of judging modes of whether the internal concave-convex degree of the evaporation body is in an allowable range according to the loss weight of the cleaning liquid, wherein,
the first concave-convex degree judging mode is that the central control module judges that the concave-convex degree of the inside of the evaporation main body is in an allowable range under the condition of presetting a first loss weight;
the second type of concave-convex degree judging mode is that the central control module judges that the concave-convex degree of the inside of the evaporation main body exceeds an allowable range under the condition of a preset second loss weight, and the rotating speed of the motor of the cleaning pump is regulated to a corresponding rotating speed by calculating the difference value between the loss weight of the cleaning liquid and the preset loss weight;
the preset first weight loss condition is that the weight loss of the cleaning liquid is less than or equal to the preset weight loss; the preset second weight loss condition is that the weight loss of the cleaning liquid is larger than the preset weight loss.
Further, the calculation formula of the loss weight of the cleaning liquid is as follows:
W＝W x -W y
wherein W is the lost weight of the cleaning liquid, W x For the initial weight of the cleaning liquid detected by the weight sensor, W y For the weight at the end of a single cycle detected by the weight sensor.
Further, the central control module determines three types of adjustment modes aiming at the rotating speed of the motor of the cleaning pump according to the difference value between the loss weight of the cleaning liquid and the preset loss weight under the preset second loss weight condition, wherein,
The first type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the cleaning pump motor to the preset rotation speed of the cleaning pump motor under the condition of a preset first loss weight difference value;
the second type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the motor of the cleaning pump to a first rotation speed by using a preset first rotation speed adjusting coefficient under the condition of presetting a second loss weight difference value;
the third type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the cleaning pump motor to a second rotation speed by using a preset second rotation speed adjusting coefficient under the condition of presetting a third loss weight difference value;
the preset first loss weight difference value condition is that the difference value between the loss weight of the cleaning liquid and the preset loss weight is smaller than the preset first loss weight difference value; the preset second loss weight difference condition is that the difference between the loss weight of the cleaning liquid and the preset loss weight is larger than the preset first loss weight difference and smaller than or equal to the preset second loss weight difference; the preset third loss weight difference value condition is that the loss weight of the cleaning liquid and the preset loss weight are larger than the preset second loss weight difference value; the preset first loss weight difference value is smaller than the preset second loss weight difference value, and the preset first rotating speed adjusting coefficient is smaller than the preset second rotating speed adjusting coefficient.
Compared with the prior art, the device has the beneficial effects that through the cleaning tank, the power module, the conveying module, the cleaning module and the central control module, the spraying flow of the telescopic nozzle at the cleaning position corresponding to the abrupt change time period of the dirt output volume is regulated to the corresponding flow according to the increase rate of the dirt volume output by the evaporation main body, so that the blockage degree of dirt caused by overhigh smoothness in the evaporation main body reflected by the increase rate of the dirt volume is reduced; the cleaning liquid replacement period is adjusted to a corresponding period according to the actual pressure of the conveying pipeline detected by the pressure sensor, so that the influence of the increase of the dirt range caused by dirt transfer on cleaning accuracy is reduced; through the loss weight according to the washing liquid with washing pump motor rotational speed increase to corresponding rotational speed, reduced because the comprehensiveness to the clearance of evaporation body's rugged place of the inaccurate regulation of washing pump motor rotational speed has realized abluent precision and comprehensive improvement.
Furthermore, by setting the preset first dirt volume increasing rate and the preset second dirt volume increasing rate and determining whether the stability of dirt cleaning is within the allowable range according to the dirt volume increasing rate output by the evaporation main body, the device reduces the influence on the dirt cleaning accuracy caused by inaccurate determination of the dirt cleaning stability, and further improves the cleaning accuracy and comprehensiveness.
Furthermore, according to the device, through the preset first dirt volume increasing rate difference value, the preset second dirt volume increasing rate difference value, the preset first spray flow adjusting coefficient and the preset second spray flow adjusting coefficient, three types of adjusting modes of the spray flow of the telescopic spray head corresponding to the cleaning position in the abrupt change time period of the dirt output volume are determined according to the difference value of the dirt volume increasing rate output by the evaporation main body and the preset second dirt volume increasing rate, the influence on cleaning accuracy due to inaccurate adjustment of the spray flow is reduced, and the cleaning accuracy and the comprehensive improvement are further realized.
Furthermore, by setting the preset first pressure and the preset second pressure and determining whether the diffusion degree of the dirt exceeds the allowable range according to the actual pressure of the conveying pipeline, the device reduces the influence on cleaning accuracy caused by inaccurate judgment of the diffusion degree of the dirt, and further improves the cleaning accuracy and comprehensiveness.
Furthermore, the device of the invention sets the preset first pressure difference value, the preset second pressure difference value, the preset first replacement period adjustment coefficient and the preset second replacement period adjustment coefficient, and determines three types of adjustment modes for the cleaning liquid replacement period according to the difference value between the actual pressure of the conveying pipeline and the preset first pressure, thereby reducing the influence on the cleaning effect of the cleaning liquid due to inaccurate adjustment of the cleaning liquid replacement period and further realizing the improvement of the cleaning accuracy and the comprehensiveness.
Furthermore, the device reduces the influence on the cleaning accuracy caused by the unevenness in the evaporation main body by the preset loss weight and determines whether the internal unevenness degree of the evaporation main body is in the allowable range according to the loss weight of the cleaning liquid, thereby further realizing the improvement of the cleaning accuracy and the comprehensiveness.
Furthermore, according to the device, through the preset first loss weight difference value, the preset second loss weight difference value, the preset first rotating speed adjustment coefficient and the preset second rotating speed adjustment coefficient, three types of adjustment modes for the rotating speed of the cleaning pump motor are determined according to the difference value between the loss weight of the cleaning liquid and the preset loss weight, the influence on cleaning accuracy caused by inaccurate adjustment of the rotating speed of the cleaning pump motor is reduced, and the cleaning accuracy and the cleaning overall improvement are further realized.
Drawings
FIG. 1 is a schematic structural view of an automatic cleaning device for MVR evaporation equipment according to an embodiment of the present invention;
FIG. 2 is a block diagram showing the overall structure of an automatic cleaning device for MVR evaporation equipment according to an embodiment of the present invention;
FIG. 3 is a block diagram showing the structure of a power module of an automatic cleaning device of an MVR evaporation device according to an embodiment of the invention;
Fig. 4 is a block diagram showing a cleaning module of an automatic cleaning device for MVR evaporation equipment according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
It should be noted that, the data in this embodiment are obtained by the device according to the present invention according to the historical cleaning data and the corresponding comprehensive analysis and evaluation of the detection of the previous cleaning process before the current cleaning; the device disclosed by the invention is used for cumulatively monitoring the increasing rate of the dirt volume of 2342 cases, the actual pressure of the conveying pipeline and the loss weight of the cleaning liquid before the current cleaning, and comprehensively determining the numerical value of each preset parameter standard aiming at the current cleaning. It can be understood by those skilled in the art that the determining manner of the device according to the present invention for the single item of parameter may be to select the value with the highest duty ratio as the preset standard parameter according to the data distribution, as long as the system according to the present invention can clearly define different specific situations in the single item determination process through the obtained value.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, which are a schematic structural diagram, an overall structural block diagram, a power module structural block diagram, and a cleaning module structural block diagram of an automatic cleaning device for an MVR evaporation apparatus according to an embodiment of the present invention, respectively; the embodiment of the invention provides an automatic cleaning device for MVR evaporation equipment, which comprises the following components:
a cleaning tank 5 for storing a cleaning liquid for circulation, and a weight sensor 4 for detecting the weight of the cleaning liquid is provided below the cleaning tank 5;
The power module is connected with the cleaning tank 5 and is used for providing power for circularly cleaning the evaporation body 7 by the cleaning liquid and comprises a cleaning pump 10 which is arranged at the input end of the evaporation body 7 and is used for providing power for spraying the cleaning liquid;
the conveying module is respectively connected with the cleaning tank 5 and the power module and comprises a conveying pipeline 1 connected with the conveying pump 3 for conveying cleaning liquid and a pressure sensor 2 arranged below the conveying pipeline 1 for detecting the pressure of the conveying pipeline 1;
the cleaning module is respectively connected with the power module and the conveying module and is used for cleaning the evaporation body 7, and comprises a telescopic spray head 8 connected with the conveying module and used for spraying cleaning liquid into the evaporation body 7 and a scraping assembly 6 arranged in the evaporation body 7 and used for scraping dirt;
the central control module is respectively connected with the cleaning tank 5, the power module, the conveying module and the cleaning module, and is used for adjusting the spraying flow of the telescopic spray head 8 to a corresponding flow according to the increasing rate of the dirt volume output by the evaporation main body 7, adjusting the cleaning liquid replacement period to a corresponding period according to the actual pressure of the conveying pipeline 1 detected by the pressure sensor 2, and adjusting the rotating speed of the cleaning pump motor to a corresponding rotating speed according to the lost weight of the cleaning liquid;
The adjusting position of the spraying flow of the telescopic nozzle 8 is a cleaning position corresponding to a sudden change time period of the dirt volume output by the evaporation body 7.
According to the device, through the cleaning tank 5, the power module, the conveying module, the cleaning module and the central control module, the spraying flow of the telescopic spray head 8 at the cleaning position corresponding to the abrupt change time period of the dirt output volume is adjusted to the corresponding flow according to the increase rate of the dirt volume output by the evaporation main body 7, so that the blocking degree of dirt caused by the excessively high internal smoothness of the evaporation main body 7 reflected by the increase rate of the dirt volume is reduced; by adjusting the cleaning liquid replacement cycle to a corresponding cycle according to the actual pressure of the conveying pipeline 1 detected by the pressure sensor 2, the influence of the increase of the scale range caused by the scale transfer on the cleaning accuracy is reduced; through the loss weight according to the washing liquid with washing pump motor rotational speed increase to corresponding rotational speed, reduced because the comprehensiveness to the clearance of the rugged place of evaporation main part 7 of the inaccurate regulation to washing pump motor rotational speed, realized abluent precision and comprehensive improvement.
With continued reference to fig. 1, the power module further includes:
A delivery pump 3 connected to the cleaning tank 5 for delivering the cleaning liquid to the evaporation body 7;
and a circulation pump 12 disposed between the input end and the output end of the evaporation body 7 for providing power for circulation of the cleaning liquid.
With continued reference to fig. 1, the central control module determines whether the stability of the dirt removal is within the allowable range according to the rate of increase of the dirt volume output from the evaporation body 7, wherein,
the first type of judgment mode is that the central control module judges that the stability of dirt removal is within an allowable range under the condition of presetting a first growth rate;
the second type of judgment mode is that the central control module judges that the stability of dirt removal is lower than an allowable range under the condition of a preset second growth rate, primarily judges that the diffusion degree of dirt exceeds the allowable range, and judges whether the diffusion degree of dirt exceeds the allowable range or not secondarily according to the actual pressure of the conveying pipeline 1;
the third type of judgment mode is that the central control module judges that the stability of dirt removal is lower than an allowable range under the condition of a preset third growth rate, and adjusts the spraying flow of the telescopic nozzle 8 to a corresponding flow by calculating the difference value between the growth rate of the dirt volume output by the evaporation main body 7 and the preset second dirt volume growth rate;
The preset first increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body 7 is smaller than or equal to the preset first dirt volume increasing rate; the preset second increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body 7 is larger than the preset first dirt volume increasing rate and smaller than or equal to the preset second dirt volume increasing rate; the preset third increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body 7 is larger than the preset second dirt volume increasing rate; the predetermined first fouling volume increase rate is less than the predetermined second fouling volume increase rate.
Specifically, the increase rate of the fouling volume output by the evaporation body 7 is denoted as R, the preset first fouling volume increase rate is denoted as R1, the preset second fouling volume increase rate is denoted as R2, wherein R1 < R2, the difference between the increase rate of the fouling volume output by the evaporation body 7 and the preset second fouling volume increase rate is denoted as Δr, and Δr=r—r2 is set.
Furthermore, by setting the preset first dirt volume increasing rate and the preset second dirt volume increasing rate, the device of the invention reduces the influence on the accuracy of dirt cleaning due to inaccurate determination of the dirt cleaning stability by three types of determination modes for determining whether the dirt cleaning stability is within an allowable range according to the dirt volume increasing rate output by the evaporation main body 7, and further realizes the improvement of the cleaning accuracy and comprehensiveness.
With continued reference to fig. 1 and 2, the calculation formula of the increase rate of the dirt volume output by the evaporation body 7 is:
where R is the rate of increase of the volume of fouling output by the evaporation body 7, M a For the volume of dirt, M, output by the evaporation body at the end of a unit detection period, detected by the visual detector 9 provided in the dirt storage tank 11 b The volume of fouling output by the evaporation body 7 at the initial moment of the unit detection cycle, T, is the duration of a single detection cycle.
With continued reference to fig. 1, the central control module determines three types of adjustment modes for the spray flow rate of the telescopic spray head 8 according to the difference between the increase rate of the dirt volume output by the evaporation body 7 and the increase rate of the second dirt volume under the condition of the preset third increase rate, wherein,
the first type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head 8 to a preset spraying flow under the condition of presetting a first increase rate difference value;
the second type of adjustment mode is that the central control module adjusts the spraying flow rate of the telescopic spray head 8 to the first spraying flow rate by using a preset second spraying flow rate adjustment coefficient under the condition of presetting a second increase rate difference value;
The third type of adjustment mode is that the central control module adjusts the spraying flow rate of the telescopic nozzle 8 to the second spraying flow rate by using a preset first spraying flow rate adjustment coefficient under the condition of presetting a third growth rate difference value;
the difference value condition of the preset first increasing rate is that the difference value between the increasing rate of the dirt volume output by the evaporation body 7 and the increasing rate of the preset second dirt volume is smaller than or equal to the difference value of the preset first dirt volume increasing rate; the preset second increase rate difference condition is that the difference between the increase rate of the dirt volume output by the evaporation body 7 and the preset second dirt volume increase rate is greater than the preset first dirt volume increase rate difference and less than or equal to the preset second dirt volume increase rate difference; the preset third increase rate difference condition is that the difference between the increase rate of the dirt volume output by the evaporation body 7 and the preset second dirt volume increase rate is larger than the difference of the preset second dirt volume increase rate; the preset first dirt volume increase rate difference is less than the preset second dirt volume increase rate difference, and the preset first spray flow adjustment coefficient is less than the preset second spray flow adjustment coefficient.
Specifically, the preset spray flow rate is denoted as P0, the preset first dirt volume increase rate difference is denoted as Δr1, the preset second dirt volume increase rate difference is denoted as Δr2, the preset first spray flow rate adjustment coefficient is denoted as α1, the preset second spray flow rate adjustment coefficient is denoted as α2, wherein Δr1 < Δr2,0 < α1 < α2 < 1, the adjusted spray flow rate of the telescopic shower head 8 is denoted as P ', P' =p0× (1+αi)/2 is set, wherein αi is the ith spray flow rate adjustment coefficient, and i=1, 2 is set.
Further, according to the device, through the preset first dirt volume increasing rate difference value, the preset second dirt volume increasing rate difference value, the preset first spray flow adjusting coefficient and the preset second spray flow adjusting coefficient, three types of adjusting modes of the spray flow of the telescopic spray head 8 corresponding to the cleaning position in the abrupt change time period of the dirt output volume are determined according to the difference value of the dirt volume increasing rate output by the evaporation main body 7 and the preset second dirt volume increasing rate, the influence on cleaning accuracy due to inaccurate adjustment of the spray flow is reduced, and the cleaning accuracy and the comprehensive improvement are further realized.
With continued reference to fig. 1, the central control module determines whether the degree of diffusion of the dirt exceeds the allowable range according to the actual pressure of the conveying pipeline 1 under the condition of the preset second growth rate, wherein,
the first secondary judgment mode is that the central control module secondarily judges that the diffusion degree of dirt is in an allowable range under a preset first pressure condition;
the second secondary judgment mode is that the central control module secondarily judges that the diffusion degree of dirt exceeds the allowable range under the preset second pressure condition, and the cleaning liquid replacement period is adjusted to a corresponding period by calculating the difference value between the actual pressure of the conveying pipeline 1 and the preset first pressure;
the third type of secondary judging mode is that the central control module secondarily judges that the diffusion degree of dirt exceeds the allowable range under the preset second pressure condition, judges that the equipment fault exists in the conveying module and sends out an equipment fault maintenance notification aiming at the conveying module;
the preset first pressure condition is that the actual pressure of the conveying pipeline 1 is smaller than or equal to the preset first pressure; the preset first pressure condition is that the actual pressure of the conveying pipeline 1 is larger than the preset first pressure and smaller than or equal to the preset second pressure; the preset third actual pressure condition is that the actual pressure of the conveying pipeline 1 is larger than the preset second pressure; the preset first pressure is less than the preset second pressure.
Specifically, the actual pressure of the conveying pipe 1 is denoted as F, the preset first pressure is denoted as F1, the preset second pressure is denoted as F2, wherein F1 < F2, the difference between the actual pressure of the conveying pipe 1 and the preset first pressure is denoted as Δf, and Δf=f-F1 is set.
Furthermore, by setting the preset first pressure and the preset second pressure and determining whether the diffusion degree of the dirt exceeds the allowable range according to the actual pressure of the conveying pipeline 1, the device reduces the influence on cleaning accuracy caused by inaccurate determination of the diffusion degree of the dirt, and further improves the cleaning accuracy and comprehensiveness.
With continued reference to fig. 2, the central control module determines three types of adjustment modes for the cleaning solution replacement period according to the difference between the actual pressure of the conveying pipeline 1 and the preset first pressure under the preset second pressure condition, wherein,
the first type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to a preset replacement period under the condition of a preset first pressure difference value;
the second type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to the first replacement period by using a preset second replacement period adjusting coefficient under the condition of a preset second pressure difference value;
The third type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to a second replacement period by using a preset first replacement period adjusting coefficient under the condition of presetting a third actual pressure difference value;
the preset first pressure difference condition is that the difference between the actual pressure of the conveying pipeline 1 and the preset first pressure is smaller than or equal to the preset first pressure difference; the preset second pressure difference condition is that the difference between the actual pressure of the conveying pipeline 1 and the preset first pressure is larger than the preset first pressure difference and smaller than or equal to the preset second pressure difference; the preset third actual pressure difference condition is that the difference between the actual pressure of the conveying pipeline 1 and the preset first pressure is larger than the preset second pressure difference; the preset first pressure difference value is smaller than the preset second pressure difference value, and the preset first replacement period adjustment coefficient is smaller than the preset second replacement period adjustment coefficient.
Specifically, the preset replacement period is denoted as U0, the preset first pressure difference is denoted as Δf1, the preset second pressure difference is denoted as Δf2, the preset first replacement period adjustment coefficient is denoted as β1, the preset second replacement period adjustment coefficient is denoted as β2, Δf1 < Δf2,0 < β1 < β2 < 1, the adjusted cleaning liquid replacement period is denoted as U ', U' =u0×βj is set, βj is a jth replacement period adjustment coefficient, and j=1, 2 is set.
Furthermore, the device of the invention sets the preset first pressure difference value, the preset second pressure difference value, the preset first replacement period adjustment coefficient and the preset second replacement period adjustment coefficient, and determines three types of adjustment modes aiming at the cleaning liquid replacement period according to the difference value of the actual pressure of the conveying pipeline 1 and the preset first pressure, thereby reducing the influence on the cleaning effect of the cleaning liquid due to inaccurate adjustment of the cleaning liquid replacement period, and further realizing the improvement of the cleaning accuracy and the cleaning comprehensiveness.
With continued reference to fig. 1, the central control module determines whether the internal concave-convex degree of the evaporation body 7 is within the allowable range according to the lost weight of the cleaning solution, wherein,
the first type of concave-convex degree judging mode is that the central control module judges that the concave-convex degree of the inside of the evaporation main body 7 is in an allowable range under the condition of presetting a first loss weight;
the second type of concave-convex degree judging mode is that the central control module judges that the concave-convex degree in the evaporation body 7 exceeds an allowable range under the condition of a preset second loss weight, and the rotating speed of the motor of the cleaning pump is regulated to a corresponding rotating speed by calculating the difference value between the loss weight of the cleaning liquid and the preset loss weight;
The preset first weight loss condition is that the weight loss of the cleaning liquid is less than or equal to the preset weight loss; the preset second weight loss condition is that the weight loss of the cleaning liquid is larger than the preset weight loss.
Specifically, the loss weight of the cleaning liquid is denoted as W, the preset loss weight is denoted as W0, the difference between the loss weight of the cleaning liquid and the preset loss weight is denoted as Δw, and Δw=w—w0 is set.
Furthermore, the device reduces the influence on the cleaning accuracy caused by the unevenness in the evaporation body 7 by the preset loss weight and determines whether the internal unevenness of the evaporation body 7 is within the allowable range according to the loss weight of the cleaning liquid, thereby further realizing the improvement of the cleaning accuracy and the cleaning comprehensiveness.
With continued reference to fig. 1 and 3, the calculation formula of the loss weight of the cleaning solution is as follows:
W＝W x -W y
wherein W is the lost weight of the cleaning liquid, W x For the initial weight of the cleaning liquid detected by the weight sensor 4, W y For the weight at the end of a single cycle detected by the weight sensor 4.
With continued reference to fig. 1, the central control module determines three types of adjustment modes for the rotation speed of the motor of the cleaning pump according to the difference between the loss weight of the cleaning liquid and the preset loss weight under the preset second loss weight condition, wherein,
The first type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the cleaning pump motor to the preset rotation speed of the cleaning pump motor under the condition of a preset first loss weight difference value;
the second type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the motor of the cleaning pump to a first rotation speed by using a preset first rotation speed adjusting coefficient under the condition of presetting a second loss weight difference value;
the third type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the cleaning pump motor to a second rotation speed by using a preset second rotation speed adjusting coefficient under the condition of presetting a third loss weight difference value;
the preset first loss weight difference value condition is that the difference value between the loss weight of the cleaning liquid and the preset loss weight is smaller than the preset first loss weight difference value; the preset second loss weight difference condition is that the difference between the loss weight of the cleaning liquid and the preset loss weight is larger than the preset first loss weight difference and smaller than or equal to the preset second loss weight difference; the preset third loss weight difference value condition is that the loss weight of the cleaning liquid and the preset loss weight are larger than the preset second loss weight difference value; the preset first loss weight difference value is smaller than the preset second loss weight difference value, and the preset first rotating speed adjusting coefficient is smaller than the preset second rotating speed adjusting coefficient.
Specifically, the preset rotational speed of the washing pump motor is denoted as V0, the preset first loss weight difference is denoted as Δw1, the preset second loss weight difference is denoted as Δw2, the preset first rotational speed adjustment coefficient is denoted as γ1, the preset second rotational speed adjustment coefficient is denoted as γ2, wherein Δw1 < Δw2,1 < γ1 < γ2, the adjusted rotational speed of the washing pump motor is denoted as V ', V' =v0× (1+2γg)/3 is set, wherein γg is the g-th rotational speed adjustment coefficient, and g=1, 2 is set.
Furthermore, according to the device, through the preset first loss weight difference value, the preset second loss weight difference value, the preset first rotating speed adjustment coefficient and the preset second rotating speed adjustment coefficient, three types of adjustment modes for the rotating speed of the cleaning pump motor are determined according to the difference value between the loss weight of the cleaning liquid and the preset loss weight, the influence on cleaning accuracy caused by inaccurate adjustment of the rotating speed of the cleaning pump motor is reduced, and the cleaning accuracy and the cleaning overall improvement are further realized.
Example 1
In this embodiment 1, the central control module determines three types of adjustment modes of the spray flow rate of the telescopic nozzle corresponding to the cleaning position for the abrupt time period of the fouling output volume according to the difference between the growth rate of the fouling volume output by the evaporation body and the growth rate of the preset second fouling volume under the preset third growth rate condition, the preset spray flow rate is denoted as P0, the difference between the preset first fouling volume growth rate and the preset second fouling volume growth rate is denoted as Δr1, the difference between the preset first fouling volume growth rate and the preset second fouling volume growth rate is denoted as Δr2, the preset first spray flow rate adjustment coefficient is denoted as α1, and the preset second spray flow rate adjustment coefficient is denoted as α2, where Δr1=0.6m 3 /min，△R2＝1.8m 3 /min，α1＝0.85，α2＝0.95，P0＝6L/min，
The Δr=1.0m obtained in example 1 3 And/min, the central control module judges that DeltaR 1 < DeltaRis less than or equal to DeltaR 2, and adjusts the spraying flow of the telescopic spray head to the first spraying flow P 'by using a preset second spraying flow adjustment coefficient alpha 2, so that P' =6L/min× (1+0.95)/2=5.85L/min is calculated.
In this embodiment 1, through the preset first dirt volume increase rate difference value, the preset second dirt volume increase rate difference value, the preset first spray flow adjustment coefficient and the preset second spray flow adjustment coefficient that set up, the spray flow is adjusted to the corresponding value according to the dirt volume increase rate, so that the influence of inaccurate adjustment on the spray flow on cleaning accuracy is reduced, and the cleaning accuracy and comprehensiveness are improved.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. MVR evaporation equipment self-cleaning device, characterized by, include:
the cleaning tank is used for storing the recycled cleaning liquid, and a weight sensor used for detecting the weight of the cleaning liquid is arranged below the cleaning tank;
the power module is connected with the cleaning tank and used for providing power for circularly cleaning the evaporation body by the cleaning liquid and comprises a cleaning pump which is arranged at the input end of the evaporation body and used for providing power for spraying the cleaning liquid;
the conveying module is respectively connected with the cleaning tank and the power module and comprises a conveying pipeline connected with a conveying pump for conveying cleaning liquid and a pressure sensor arranged below the conveying pipeline for detecting the pressure of the conveying pipeline;
the cleaning module is respectively connected with the power module and the conveying module and is used for cleaning the evaporation main body, and comprises a telescopic spray head connected with the conveying module and used for spraying cleaning liquid into the evaporation main body and a scraping assembly arranged in the evaporation main body and used for scraping dirt;
The central control module is respectively connected with the cleaning tank, the power module, the conveying module and the cleaning module, and is used for adjusting the spraying flow of the telescopic spray head to a corresponding flow according to the increasing rate of the dirt volume output by the evaporation main body, adjusting the cleaning liquid replacement period to a corresponding period according to the actual pressure of the conveying pipeline detected by the pressure sensor, and adjusting the rotating speed of the cleaning pump motor to a corresponding rotating speed according to the loss weight of the cleaning liquid;
the adjusting position of the spraying flow of the telescopic spray head is a cleaning position corresponding to a sudden change time period of the dirt volume output by the evaporation main body;
the central control module determines whether the stability of the dirt removal is within an allowable range according to the increase rate of the dirt volume output by the evaporation body, wherein,
the first type of judgment mode is that the central control module judges that the stability of dirt removal is within an allowable range under the condition of presetting a first growth rate;
the second type of judgment mode is that the central control module judges that the stability of dirt removal is lower than an allowable range under the condition of a preset second growth rate, primarily judges that the diffusion degree of dirt exceeds the allowable range, and judges whether the diffusion degree of dirt exceeds the allowable range for the second time according to the actual pressure of the conveying pipeline;
The third type of judgment mode is that the central control module judges that the stability of dirt removal is lower than an allowable range under the condition of a preset third growth rate, and adjusts the spraying flow of the telescopic nozzle to a corresponding flow by calculating the difference value between the growth rate of the dirt volume output by the evaporation main body and the preset second dirt volume growth rate;
the first preset increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body is smaller than or equal to the first preset dirt volume increasing rate; the preset second increasing rate condition is that the increasing rate of the dirt volume output by the evaporation body is larger than the preset first dirt volume increasing rate and smaller than or equal to the preset second dirt volume increasing rate; the preset third growth rate condition is that the growth rate of the dirt volume output by the evaporation body is larger than the preset second dirt volume growth rate; the predetermined first fouling volume increase rate is less than the predetermined second fouling volume increase rate.
2. The MVR evaporation plant automatic cleaning apparatus according to claim 1, wherein the power module further comprises:
a transfer pump connected to the cleaning tank for transferring the cleaning liquid to the evaporation body;
And the circulating pump is arranged between the input end and the output end of the evaporation main body and is used for providing the power for circulating the cleaning liquid.
3. The MVR evaporation plant automatic cleaning apparatus according to claim 2, wherein the calculation formula of the rate of increase of the volume of dirt output by the evaporation body is:
wherein R is the rate of increase of the volume of the scale output by the evaporation body, M a For the volume of dirt output by the evaporation body at the end of a unit detection period detected by a visual detector arranged in the dirt storage tank, M b The volume of fouling output by the evaporation body at the initial moment of the unit detection cycle, T, is the duration of the single detection cycle.
4. The MVR evaporation plant automatic cleaning apparatus according to claim 3, wherein the central control module determines three types of adjustment modes for the spray flow rate of the telescopic spray head according to a difference between an increase rate of the volume of the dirt output from the evaporation body and an increase rate of the volume of the dirt output from the evaporation body under a preset third increase rate condition, wherein,
the first type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head to a preset spraying flow under the condition of a preset first increase rate difference value;
The second type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head to the first spraying flow by using a preset second spraying flow adjustment coefficient under the condition of presetting a second increase rate difference value;
the third type of adjustment mode is that the central control module adjusts the spraying flow of the telescopic spray head to a second spraying flow by using a preset first spraying flow adjustment coefficient under the condition of presetting a third increase rate difference value;
the difference value of the preset first increasing rate is that the difference value of the increasing rate of the dirt volume output by the evaporation body and the increasing rate of the preset second dirt volume is smaller than or equal to the difference value of the preset first dirt volume increasing rate; the preset second increase rate difference condition is that the difference between the increase rate of the dirt volume output by the evaporation body and the preset second dirt volume increase rate is larger than the difference between the preset first dirt volume increase rate and smaller than or equal to the difference between the preset second dirt volume increase rate; the preset third increase rate difference condition is that the difference between the increase rate of the dirt volume output by the evaporation body and the preset second dirt volume increase rate is larger than the difference of the preset second dirt volume increase rate; the preset first dirt volume increase rate difference is less than the preset second dirt volume increase rate difference, and the preset first spray flow adjustment coefficient is less than the preset second spray flow adjustment coefficient.
5. The MVR evaporation plant automatic cleaning apparatus according to claim 4, wherein the central control module determines whether the degree of diffusion of the dirt exceeds the allowable range according to the actual pressure of the delivery pipe under the preset second growth rate condition, wherein,
the first secondary judgment mode is that the central control module secondarily judges that the diffusion degree of dirt is in an allowable range under a preset first pressure condition;
the second type of secondary judgment mode is that the central control module secondarily judges that the diffusion degree of dirt exceeds the allowable range under the condition of preset second pressure, and the cleaning liquid replacement period is regulated to a corresponding period by calculating the difference value between the actual pressure of the conveying pipeline and the preset first pressure;
the third type of secondary judging mode is that the central control module secondarily judges that the diffusion degree of dirt exceeds the allowable range under the preset second pressure condition, judges that the equipment fault exists in the conveying module and sends out an equipment fault maintenance notification aiming at the conveying module;
the preset first pressure condition is that the actual pressure of the conveying pipeline is smaller than or equal to the preset first pressure; the preset first pressure condition is that the actual pressure of the conveying pipeline is larger than the preset first pressure and smaller than or equal to the preset second pressure; the preset third actual pressure condition is that the actual pressure of the conveying pipeline is larger than the preset second pressure; the preset first pressure is less than the preset second pressure.
6. The MVR evaporation plant automatic cleaning apparatus according to claim 5, wherein the central control module determines three types of adjustment modes for the cleaning solution replacement cycle according to a difference between an actual pressure of the delivery pipe and a preset first pressure under a preset second pressure condition, wherein,
the first type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to a preset replacement period under the condition of a preset first pressure difference value;
the second type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to the first replacement period by using a preset second replacement period adjusting coefficient under the condition of a preset second pressure difference value;
the third type of replacement period adjusting mode is that the central control module adjusts the replacement period of the cleaning liquid to a second replacement period by using a preset first replacement period adjusting coefficient under the condition of presetting a third actual pressure difference value;
the preset first pressure difference condition is that the difference value between the actual pressure of the conveying pipeline and the preset first pressure is smaller than or equal to the preset first pressure difference value; the preset second pressure difference condition is that the difference between the actual pressure of the conveying pipeline and the preset first pressure is larger than the preset first pressure difference and smaller than or equal to the preset second pressure difference; the preset third actual pressure difference condition is that the difference between the actual pressure of the conveying pipeline and the preset first pressure is larger than the preset second pressure difference; the preset first pressure difference value is smaller than the preset second pressure difference value, and the preset first replacement period adjustment coefficient is smaller than the preset second replacement period adjustment coefficient.
7. The automatic cleaning device for MVR evaporation plant according to claim 6, wherein said central control module determines whether the degree of internal concavity and convexity of the evaporation body is within an allowable range according to the loss weight of the cleaning liquid, wherein,
the first concave-convex degree judging mode is that the central control module judges that the concave-convex degree of the inside of the evaporation main body is in an allowable range under the condition of presetting a first loss weight;
the second type of concave-convex degree judging mode is that the central control module judges that the concave-convex degree of the inside of the evaporation main body exceeds an allowable range under the condition of a preset second loss weight, and the rotating speed of the motor of the cleaning pump is regulated to a corresponding rotating speed by calculating the difference value between the loss weight of the cleaning liquid and the preset loss weight;
the preset first weight loss condition is that the weight loss of the cleaning liquid is less than or equal to the preset weight loss; the preset second weight loss condition is that the weight loss of the cleaning liquid is larger than the preset weight loss.
8. The MVR evaporation plant automatic cleaning apparatus according to claim 7, wherein the calculation formula of the loss weight of the cleaning liquid is:
W＝W x -W y
wherein W is the lost weight of the cleaning liquid, W x For the initial weight of the cleaning liquid detected by the weight sensor, W y For the weight at the end of a single cycle detected by the weight sensor.
9. The automatic cleaning device for an MVR evaporation plant according to claim 8, wherein the central control module determines three types of adjustment modes for the rotation speed of the cleaning pump motor according to the difference between the loss weight of the cleaning liquid and the preset loss weight under the preset second loss weight condition, wherein,
the first type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the cleaning pump motor to the preset rotation speed of the cleaning pump motor under the condition of a preset first loss weight difference value;
the second type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the motor of the cleaning pump to a first rotation speed by using a preset first rotation speed adjusting coefficient under the condition of presetting a second loss weight difference value;
the third type of rotation speed adjusting mode is that the central control module adjusts the rotation speed of the cleaning pump motor to a second rotation speed by using a preset second rotation speed adjusting coefficient under the condition of presetting a third loss weight difference value;
the preset first loss weight difference value condition is that the difference value between the loss weight of the cleaning liquid and the preset loss weight is smaller than the preset first loss weight difference value; the preset second loss weight difference condition is that the difference between the loss weight of the cleaning liquid and the preset loss weight is larger than the preset first loss weight difference and smaller than or equal to the preset second loss weight difference; the preset third loss weight difference value condition is that the loss weight of the cleaning liquid and the preset loss weight are larger than the preset second loss weight difference value; the preset first loss weight difference value is smaller than the preset second loss weight difference value, and the preset first rotating speed adjusting coefficient is smaller than the preset second rotating speed adjusting coefficient.
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| US6513462B1 (en) * | 1998-08-06 | 2003-02-04 | Mitsubishi Heavy Industries, Ltd. | Descaling device for steam generator |
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Effective date of registration: 20240130 Address after: Room 1401, unit 4, building 6, No.1, Huangjin Road, Nancheng street, Dongguan City, Guangdong Province, 523000 Patentee after: GUANGDONG WTEYA ENVIRONMENTAL TECHNOLOGY CO.,LTD. Country or region after: China Address before: Room 1406, Unit 4, Building 6, Tian'an Digital City, No. 1, Huangjin Road, Nancheng Street, Dongguan City, Guangdong Province, 523000 Patentee before: Guangdong Zhonggong Bilan Environmental Technology Co.,Ltd. Country or region before: China |
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