CN114534476B - Constant temperature control system and control method for tower top of acid drenching device for triazole production - Google Patents
Constant temperature control system and control method for tower top of acid drenching device for triazole production Download PDFInfo
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- 239000002253 acid Substances 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 26
- 150000003852 triazoles Chemical class 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000001228 spectrum Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 33
- 238000004088 simulation Methods 0.000 claims description 30
- 238000013499 data model Methods 0.000 claims description 28
- 230000009467 reduction Effects 0.000 claims description 27
- 238000012545 processing Methods 0.000 claims description 25
- 230000008859 change Effects 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 14
- 230000011218 segmentation Effects 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 9
- 238000009432 framing Methods 0.000 claims description 9
- 238000005457 optimization Methods 0.000 claims description 9
- 238000004422 calculation algorithm Methods 0.000 claims description 7
- 238000005094 computer simulation Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 30
- 230000009286 beneficial effect Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 7
- 238000011084 recovery Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The invention discloses a constant temperature control system and a constant temperature control method for the top of an acid drenching device for producing triazole, which comprises the following steps: the acquisition module is used for acquiring the current temperature of the acid drenching device at a distance h from the ground; a setup module to: setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value; dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval; a first determination module to: and according to the relation between the current temperature and the first temperature interval as well as the relation between the current temperature and the second temperature interval, different control instructions are adopted for the temperature control module. The high-precision temperature control is realized, the gaseous ammonium formate can be better ensured to be liquefied, the loss of the ammonium formate is avoided, and the automation of the operation is realized.
Description
Technical Field
The invention relates to the technical field of constant temperature control, in particular to a constant temperature control system and a control method for the top of an acid drenching device for producing triazole.
Background
At present, an exchange area is increased based on an acid sprayer, separation of gaseous ammonium formate can be achieved, and in order to ensure recovery of ammonium formate, a temperature control system is added at an outflow part of an air pipe at the top of a tower; when heating or cooling is performed at a relatively high rate, it is easy to cause that the temperature cannot be accurately and reasonably controlled at the predetermined temperature when the predetermined temperature requirement is about to be reached, the temperature is not accurately controlled, the recovery rate of the ammonium formate is not high, and a part of the ammonium formate is lost.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, the first purpose of the invention is to provide a constant temperature control system at the top of an acid drenching tower for producing triazole, which can accurately control the temperature, better ensure that gaseous ammonium formate is liquefied, improve the recovery rate of ammonium formate, avoid the loss of ammonium formate and realize the automation of operation.
The second purpose of the invention is to provide a constant temperature control method for the tower top of the acid drenching device for producing triazole.
In order to achieve the above object, an embodiment of the invention provides a constant temperature control system for a tower top of an acid shower for producing triazole, which comprises:
the acquisition module is used for acquiring the current temperature h from the acid drenching device to the ground;
a setup module to:
setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value;
dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval;
a first determining module to:
when the current temperature is determined to be in the first temperature interval, controlling a temperature control module to heat at a first rate, and increasing the current temperature to an intermediate temperature value;
when the current temperature is determined to be in the second temperature interval, controlling a temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value;
when the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate;
when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate.
According to some embodiments of the invention, further comprising:
a second determination module to: when the air pump pumps the gaseous ammonium formate to the acid drenching device through the air pipe, performing linear difference calculation on flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the plurality of time nodes;
the second acquisition module is used for acquiring physical information and operation data of the acid drenching device;
a building module, connected to the second determining module and the second obtaining module respectively, for:
constructing a simulation model according to the air displacement, the physical information and the operation data;
performing liquefaction dynamic simulation on gaseous ammonium formate through the simulation model to obtain simulation data;
a data processing module to:
generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking;
generating a second data model according to the simulation data, and carrying out segmentation marking;
and matching the first data model with the second data model, comparing the data of the same segment, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result.
According to some embodiments of the invention, further comprising:
an alarm module to:
when the temperature control module is determined to heat at a first rate, acquiring temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as the temperature change rate;
and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value.
According to some embodiments of the invention, further comprising:
an acquisition module to: collecting voice signals;
a signal processing module to:
performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals;
carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals;
determining an amplitude value according to the frequency spectrum of the sub-voice signals, and determining the sub-voice signals with the amplitude values larger than a preset amplitude value as the sub-voice signals to be processed;
acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error;
multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal;
performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals;
the voice recognition module is used for inputting the noise reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to the control module;
and the control module is used for generating a voice control instruction according to the voice recognition result.
According to some embodiments of the invention, further comprising:
a packing module, connected to the second determining module and the second obtaining module respectively, for:
and receiving the displacement, the physical information and the operation data, packaging the displacement, the physical information and the operation data to obtain a comprehensive data packet, and sending the comprehensive data packet to a construction module.
In order to achieve the above object, a constant temperature control method for the top of an acid shower tower for producing triazole is provided in a second aspect of the present invention, and includes:
acquiring the current temperature of the acid sprayer at a distance h from the ground;
setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value;
dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval;
when the current temperature is determined to be in the first temperature interval, controlling a temperature control module to heat at a first rate, and increasing the current temperature to an intermediate temperature value;
when the current temperature is determined to be in the second temperature interval, controlling a temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value;
when the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate;
when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate.
According to some embodiments of the invention, further comprising:
when the air pump pumps the gaseous ammonium formate to the acid drenching device through the air pipe, performing linear difference calculation on flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the plurality of time nodes;
acquiring physical information and operation data of the acid drenching device;
constructing a simulation model according to the air displacement, the physical information and the operation data;
performing liquefaction dynamic simulation on the gaseous ammonium formate through the simulation model to obtain simulation data;
generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking;
generating a second data model according to the simulation data, and carrying out segmentation marking;
and matching the first data model with the second data model, comparing the data of the same section, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result.
According to some embodiments of the invention, further comprising:
when the temperature control module is determined to heat at a first rate, acquiring temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as the temperature change rate;
and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value.
According to some embodiments of the invention, further comprising:
collecting voice signals;
performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals;
carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals;
determining an amplitude value according to the frequency spectrum of the sub-voice signal, and determining the sub-voice signal with the amplitude value larger than a preset amplitude value as a sub-voice signal to be processed;
acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error;
multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal;
performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals;
inputting the noise reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to a control module;
and the control module generates a voice control instruction according to the voice recognition result.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of a constant temperature control system at the top of an acid shower tower for producing triazole according to one embodiment of the invention;
FIG. 2 is a block diagram of a constant temperature control system at the top of an acid shower tower for producing triazole according to yet another embodiment of the invention;
FIG. 3 is a flow chart of a method for controlling the constant temperature at the top of the acid shower tower for triazole production according to an embodiment of the invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
As shown in fig. 1, an embodiment of the first aspect of the present invention provides an acid shower tower top constant temperature control system for triazole production, including:
the acquisition module is used for acquiring the current temperature of the acid drenching device at a distance h from the ground;
a setup module to:
setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value;
dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval;
a first determination module to:
when the current temperature is determined to be in the first temperature interval, controlling a temperature control module to heat at a first rate, and increasing the current temperature to an intermediate temperature value;
when the current temperature is determined to be in the second temperature interval, controlling a temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value;
when the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate;
when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate.
The working principle of the technical scheme is as follows: the preset temperature range is 85-95 ℃; wherein the first temperature value is 85; the second temperature value is 95 and the interim temperature value is 90. The first temperature interval is 85-90 deg.C; the second temperature interval is 90-95 deg.f. When the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate; when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate. The preset temperature range is obtained through multiple experiments. When the temperature of the mixed gas enters a preset temperature range, the mixed gas is heated at a first rate or cooled at a second rate, so that the recovery rate of the ammonium formate is ensured, and the loss of the ammonium formate is avoided.
The beneficial effects of the above technical scheme are that: and determining the temperature range of the current temperature of the acid sprayer away from the ground h according to the relation between the current temperature of the acid sprayer away from the ground h and the preset temperature range, and refrigerating or heating at different rates. When the difference between the current temperature h of the acid sprayer from the ground and the preset temperature range is larger, heating or refrigerating is carried out at a larger speed; and when the difference between the current temperature h of the acid sprayer and the preset temperature range is smaller, heating or refrigerating at a lower speed. The time for reaching the intermediate temperature value is conveniently and reasonably regulated, the temperature is accurately controlled, the gaseous ammonium formate can be better liquefied, the recovery rate of the ammonium formate is improved, the loss of the ammonium formate is avoided, and the automation of the operation is also realized.
In one embodiment, the first rate is the same as the second rate; the third rate is the same as the fourth rate.
As shown in fig. 2, according to some embodiments of the invention, further comprising:
a second determination module to: when the air pump pumps gaseous ammonium formate to the acid drenching device through the air pipe, calculating the linear difference value of flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the time nodes;
the second acquisition module is used for acquiring physical information and operation data of the acid drenching device;
a building module, connected to the second determining module and the second obtaining module, respectively, for:
constructing a simulation model according to the air displacement, the physical information and the operation data;
performing liquefaction dynamic simulation on the gaseous ammonium formate through the simulation model to obtain simulation data;
a data processing module to:
generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking;
generating a second data model according to the simulation data, and carrying out segmentation marking;
and matching the first data model with the second data model, comparing the data of the same segment, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result.
The working principle of the technical scheme is as follows: a second determination module to: when the air pump pumps gaseous ammonium formate to the acid drenching device through the air pipe, calculating the linear difference value of flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the time nodes; the second acquisition module is used for acquiring physical information and operation data of the acid drenching device; a building module, connected to the second determining module and the second obtaining module, respectively, for: constructing a simulation model according to the air displacement, the physical information and the operation data; performing liquefaction dynamic simulation on the gaseous ammonium formate through the simulation model to obtain simulation data; a data processing module to: generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking; generating a second data model according to the simulation data, and carrying out segmentation marking; and matching the first data model with the second data model, comparing the data of the same segment, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result.
The beneficial effects of the above technical scheme are that: the interaction between the physical model and the simulation model is realized, and the intelligent optimization and adjustment of the process parameters and the fault detection are realized based on the corresponding comparison of the data of the two models.
According to some embodiments of the invention, further comprising:
an alarm module to:
when the temperature control module is determined to heat at a first rate, acquiring temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as the temperature change rate;
and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value.
The working principle of the technical scheme is as follows: an alarm module to: when the temperature control module is determined to heat at a first rate, acquiring temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as the temperature change rate; and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value. The preset temperature change rate has a corresponding relationship with the first rate.
The beneficial effects of the above technical scheme are that: after the temperature control module is heated at the first rate, the acid sprayer can accurately monitor the current temperature h away from the ground, and when abnormality occurs, an alarm prompt is sent out, so that timely processing is facilitated.
According to some embodiments of the invention, further comprising:
an acquisition module to: collecting voice signals;
a signal processing module to:
performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals;
carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals;
determining an amplitude value according to the frequency spectrum of the sub-voice signal, and determining the sub-voice signal with the amplitude value larger than a preset amplitude value as a sub-voice signal to be processed;
acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error;
multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal;
performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals;
the voice recognition module is used for inputting the noise reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to the control module;
and the control module generates a voice control instruction according to the voice recognition result.
The working principle of the technical scheme is as follows: an acquisition module to: collecting voice signals; a signal processing module to: performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals; carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals; determining an amplitude value according to the frequency spectrum of the sub-voice signal, and determining the sub-voice signal with the amplitude value larger than a preset amplitude value as a sub-voice signal to be processed; acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error; multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal; performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals; the voice recognition module is used for inputting the noise-reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to the control module; and the control module generates a voice control instruction according to the voice recognition result.
The beneficial effects of the above technical scheme are as follows: the method comprises the steps of framing a voice signal, determining a sub-voice signal to be processed, denoising the sub-voice signal to be processed, improving denoising speed, obtaining a denoised voice signal, carrying out voice recognition, achieving voice control of a user, and improving user experience.
According to some embodiments of the invention, further comprising:
a packing module, connected to the second determining module and the second obtaining module respectively, for:
and receiving the displacement, the physical information and the operation data, packaging the displacement, the physical information and the operation data to obtain a comprehensive data packet, and sending the comprehensive data packet to a construction module.
The beneficial effects of the above technical scheme are as follows: the efficiency of data transmission is improved.
In one embodiment, the method further comprises:
the transmission module is used for recording the application data of the acid sprayer in the operation process and transmitting the application data to the server;
and the judging module is used for calculating the transmission rate of the application data to the server, judging whether the transmission rate is greater than a preset transmission rate or not, and sending an alarm prompt when the transmission rate is determined to be less than the preset transmission rate.
Calculating a transmission rate for transmitting the application data to a server, comprising:
the transmission module comprises k channels; wherein, a main channel is set;
wherein V is the transmission rate;
average power gain for k channels;
is the average power of k channels; epsilon is an interference parameter to the main channel; g is the power gain of the main channel; x is an integrated parameter.
The working principle and the beneficial effects of the technical scheme are as follows: the transmission rate is accurately calculated, the accuracy of judging the transmission rate and the preset transmission rate is improved, the transmission rate of transmitting the application data to the server is guaranteed, and when the transmission rate is determined to be smaller than the preset transmission rate, an alarm prompt is sent out, so that the processing is facilitated in time.
In one embodiment, obtaining the current temperature of the acid sprayer at a distance h from the ground comprises:
the acquisition module comprises M temperature sensors which are dispersedly arranged at a plurality of positions h away from the ground in the acid drenching device and respectively acquire the temperatures of the plurality of positions;
calculating the average temperature T in the acid drenching device at a position h away from the ground:
wherein λ is1Is a first weight coefficient, and has a value range of [0.7,0.96]；TiThe temperature collected for the ith temperature sensor; lambda [ alpha ]2Is the second weight coefficient and has the value range of [0.003,0.008](ii) a Q is the heat radiation density emitted by the heat source arranged at the highest position of the acid drenching device; e is a natural constant; mu is the absorption coefficient of the air in the acid drenching device to heat; h is the height value of the highest position of the acid drenching device; lambda [ alpha ]3Is the third weight coefficient and has the value range of [0.1,0.3](ii) a Z is the difference between the water vapor density at the position h away from the ground in the acid drenching device and the water vapor density of the ground.
The working principle and the beneficial effects of the technical scheme are as follows: in order to realize the constant temperature control of the top of the acid sprayer, the current temperature of the acid sprayer at a position h away from the ground is obtained, the position h away from the ground belongs to a top layer area, the influence of thermal radiation and water vapor density emitted by a heat source arranged at the highest position of the acid sprayer is considered, the current temperature of the acid sprayer at the position h away from the ground is accurately calculated and obtained based on the formula, and the accuracy of determining the relation between the current temperature and the preset temperature range is further improved.
As shown in fig. 3, a second embodiment of the present invention provides a method for controlling a constant temperature at a tower top of an acid shower for producing triazole, including:
s1, obtaining the current temperature of an acid drenching device at a distance h from the ground;
s2, setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value; dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval;
s3, when the current temperature is determined to be in the first temperature interval, controlling a temperature control module to heat at a first rate, and increasing the current temperature to an intermediate temperature value;
when the current temperature is determined to be in the second temperature interval, controlling a temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value;
when the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate;
when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate.
The beneficial effects of the above technical scheme are as follows: and determining the temperature interval in which the current temperature of the acid sprayer at the position h away from the ground is according to the relation between the current temperature of the acid sprayer at the position h away from the ground and the preset temperature range, and refrigerating or heating at different rates. When the difference between the current temperature of the acid sprayer at the position h away from the ground and the preset temperature range is larger, heating or refrigerating is carried out at a larger speed; and when the difference between the current temperature h of the acid sprayer and the preset temperature range is smaller, heating or refrigerating at a lower speed. The time for reaching the intermediate temperature value is conveniently and reasonably regulated, the temperature is accurately controlled, the gaseous ammonium formate can be better liquefied, the recovery rate of the ammonium formate is improved, the loss of the ammonium formate is avoided, and the automation of the operation is also realized.
According to some embodiments of the invention, further comprising:
when the air pump pumps the gaseous ammonium formate to the acid drenching device through the air pipe, performing linear difference calculation on flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the plurality of time nodes;
acquiring physical information and operating data of the acid drenching device;
constructing a simulation model according to the air displacement, the physical information and the operation data;
performing liquefaction dynamic simulation on the gaseous ammonium formate through the simulation model to obtain simulation data;
generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking;
generating a second data model according to the simulation data, and carrying out segmentation marking;
and matching the first data model with the second data model, comparing the data of the same section, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result.
The beneficial effects of the above technical scheme are as follows: the interaction between the physical model and the simulation model is realized, and the intelligent optimization and adjustment of the process parameters and the fault detection are realized based on the corresponding comparison of the data of the two models.
According to some embodiments of the invention, further comprising:
when the temperature control module is determined to heat at a first rate, acquiring temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as the temperature change rate;
and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value.
The beneficial effects of the above technical scheme are that: after the temperature control module is heated at the first rate, the acid sprayer can accurately monitor the current temperature h away from the ground, and when abnormality occurs, an alarm prompt is sent out, so that timely processing is facilitated.
According to some embodiments of the invention, further comprising:
collecting voice signals;
performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals;
carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals;
determining an amplitude value according to the frequency spectrum of the sub-voice signal, and determining the sub-voice signal with the amplitude value larger than a preset amplitude value as a sub-voice signal to be processed;
acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error;
multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal;
performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals;
inputting the noise reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to a control module;
and the control module generates a voice control instruction according to the voice recognition result.
The beneficial effects of the above technical scheme are that: the method comprises the steps of framing a voice signal, determining a sub-voice signal to be processed, denoising the sub-voice signal to be processed, improving denoising speed, obtaining a denoised voice signal, carrying out voice recognition, achieving voice control of a user, and improving user experience.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (5)
1. The utility model provides a triazole production is with drenching sour ware top of tower constant temperature control system which characterized in that includes:
the acquisition module is used for acquiring the current temperature of the acid drenching device at a distance h from the ground;
a setup module to:
setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value;
dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval;
a first determining module to:
when the current temperature is determined to be in the first temperature interval, controlling a temperature control module to heat at a first rate, and increasing the current temperature to an intermediate temperature value;
when the current temperature is determined to be in the second temperature interval, controlling a temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value;
when the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate;
when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate;
further comprising:
a second determination module to: when the air pump pumps the gaseous ammonium formate to the acid drenching device through the air pipe, performing linear difference calculation on flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the plurality of time nodes;
the second acquisition module is used for acquiring physical information and operation data of the acid drenching device;
a building module, connected to the second determining module and the second obtaining module, respectively, for:
constructing a simulation model according to the air displacement, the physical information and the operation data;
performing liquefaction dynamic simulation on the gaseous ammonium formate through the simulation model to obtain simulation data;
a data processing module to:
generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking;
generating a second data model according to the simulation data, and carrying out segmentation marking;
matching the first data model with the second data model, comparing the data of the same segment, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result;
acquiring the current temperature of the acid sprayer at a distance h from the ground, wherein the method comprises the following steps:
the acquisition module comprises M temperature sensors which are dispersedly arranged at a plurality of positions h away from the ground in the acid drenching device and respectively acquire the temperatures of the plurality of positions;
calculating the average temperature T in the acid drenching device at a position h away from the ground:
wherein,
is a first weight coefficient, and has a value range of [0.7,0.96]；
The temperature collected for the ith temperature sensor;
is the second weight coefficient and has the value range of [0.003,0.008](ii) a Q is the density of heat radiation emitted by a heat source arranged at the highest position of the acid drenching device; e is a natural constant;
the absorption coefficient of the air in the acid drenching device to heat is shown; h is the height value of the highest position of the acid drenching device;
is the third weight coefficient and has the value range of [0.1,0.3](ii) a Z is the difference between the water vapor density at the position h away from the ground in the acid drenching device and the water vapor density of the ground;
further comprising:
an acquisition module to: collecting voice signals;
a signal processing module to:
performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals;
carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals;
determining an amplitude value according to the frequency spectrum of the sub-voice signals, and determining the sub-voice signals with the amplitude values larger than a preset amplitude value as the sub-voice signals to be processed;
acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error;
multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal;
performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals;
the voice recognition module is used for inputting the noise reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to the control module;
the control module is used for generating a voice control instruction according to the voice recognition result;
the transmission module is used for recording the application data of the acid sprayer in the operation process and transmitting the application data to the server;
the judging module is used for calculating the transmission rate of the application data to the server, judging whether the transmission rate is greater than a preset transmission rate or not, and sending an alarm prompt when the transmission rate is determined to be less than the preset transmission rate;
calculating a transmission rate for transmitting the application data to a server, comprising:
the transmission module comprises k channels; wherein, a main channel is set;
wherein V is the transmission rate;
average power gain for k channels;
is the average power of k channels;
is an interference parameter to the primary channel; g is the power gain of the main channel; x is an integrated parameter.
2. The constant temperature control system for the tower top of the acid shower for producing triazole of claim 1, further comprising:
an alarm module to:
when the temperature control module is determined to heat at a first rate, collecting temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as a temperature change rate;
and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value.
3. The constant temperature control system for the tower top of the acid shower for producing triazole of claim 1, further comprising:
a packing module, connected to the second determining module and the second obtaining module respectively, for:
and receiving the displacement, the physical information and the operation data, packaging the displacement, the physical information and the operation data to obtain a comprehensive data packet, and sending the comprehensive data packet to a construction module.
4. A constant temperature control method for the tower top of an acid drenching device for producing triazole is characterized by comprising the following steps:
acquiring the current temperature of the acid sprayer at a distance h from the ground;
setting a preset temperature range, wherein the preset temperature range comprises a first temperature value and a second temperature value; the second temperature value is greater than the first temperature value; calculating an intermediate temperature value according to the first temperature value and the second temperature value;
dividing the preset temperature range according to the intermediate temperature value to obtain a first temperature interval and a second temperature interval;
when the current temperature is determined to be in the first temperature interval, controlling a temperature control module to heat at a first rate, and increasing the current temperature to an intermediate temperature value;
when the current temperature is determined to be in the second temperature interval, controlling a temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value;
when the current temperature is determined to be lower than the first temperature value, controlling the temperature control module to heat at a third rate, after the current temperature is increased to the first temperature value, controlling the temperature control module to heat at the first rate, and increasing the current temperature to an intermediate temperature value; the third rate is greater than the first rate;
when the current temperature is determined to be higher than the second temperature value, controlling the temperature control module to refrigerate at a fourth rate, and after the current temperature is reduced to the second temperature value, controlling the temperature control module to refrigerate at a second rate, and reducing the current temperature to an intermediate temperature value; the fourth rate is greater than the second rate;
further comprising:
when the air pump pumps the gaseous ammonium formate to the acid drenching device through the air pipe, performing linear difference calculation on flow data of the air pipe in each sampling time period, determining flow values of a plurality of time nodes in the sampling time period, and determining the exhaust volume according to the flow values of the plurality of time nodes;
acquiring physical information and operation data of the acid drenching device;
constructing a simulation model according to the air displacement, the physical information and the operation data;
performing liquefaction dynamic simulation on the gaseous ammonium formate through the simulation model to obtain simulation data;
generating a first data model according to the real data based on the acid drenching device, and carrying out segmentation marking;
generating a second data model according to the simulation data, and carrying out segmentation marking;
matching the first data model with the second data model, comparing the data of the same segment, and carrying out intelligent optimization adjustment and fault detection on the process parameters according to the comparison result;
acquiring the current temperature of the acid sprayer at a distance h from the ground based on the acquisition module; the acquisition module comprises M temperature sensors which are dispersedly arranged at a plurality of positions in the acid drenching device and away from the ground h, and the M temperature sensors are used for respectively acquiring the temperatures of the plurality of positions;
calculating the average temperature T in the acid drenching device at a position h away from the ground:
wherein,
is a first weight coefficient and has a value range of [0.7,0.96]；
The temperature collected for the ith temperature sensor;
is the second weight coefficient and has the value range of [0.003,0.008](ii) a Q is the heat radiation density emitted by the heat source arranged at the highest position of the acid drenching device; e is a natural constant;
the absorption coefficient of the air in the acid drenching device to heat is shown; h is the height value of the highest position of the acid drenching device;
is the third weight coefficient and has the value range of [0.1,0.3](ii) a Z is the difference between the water vapor density at the position h away from the ground in the acid drenching device and the water vapor density of the ground;
further comprising:
collecting voice signals;
performing framing processing on the voice signals to obtain a plurality of frame sub-voice signals;
carrying out short-time Fourier transform on the sub-voice signals to obtain frequency spectrums of the sub-voice signals;
determining an amplitude value according to the frequency spectrum of the sub-voice signal, and determining the sub-voice signal with the amplitude value larger than a preset amplitude value as a sub-voice signal to be processed;
acquiring a noise power spectrum of the sub-voice signal to be processed, and calculating a gain coefficient according to a short-time spectrum estimation algorithm of a minimum mean square error;
multiplying the gain coefficient by the frequency spectrum of the sub-voice signal to be processed to obtain a noise reduction sub-voice signal;
performing signal reconstruction processing on the sub-voice signals with the amplitude greater than or equal to a preset amplitude and the noise reduction sub-voice signals to obtain noise reduction voice signals;
inputting the noise reduction voice signal into a pre-trained voice recognition model, outputting a voice recognition result and sending the voice recognition result to a control module;
the control module generates a voice control instruction according to the voice recognition result;
further comprising:
recording application data of the acid sprayer in the operation process and transmitting the application data to a server;
calculating the transmission rate of the application data to the server, judging whether the transmission rate is greater than a preset transmission rate or not, and sending an alarm prompt when the transmission rate is determined to be less than the preset transmission rate;
calculating a transmission rate for transmitting the application data to a server, comprising:
the transmission module comprises k channels; wherein, a main channel is set;
wherein V is the transmission rate;
average power gain for k channels;
is the average power of k channels;
is an interference parameter to the primary channel; g is the power gain of the main channel; x is an integrated parameter.
5. The method for controlling the constant temperature at the tower top of the acid shower for producing triazole according to claim 4, further comprising:
when the temperature control module is determined to heat at a first rate, acquiring temperature data of the acid drenching device and fitting to obtain a fitting line, and taking the slope of the fitting line as the temperature change rate;
and calculating a difference value between the temperature change rate and a preset temperature change rate, and sending an alarm prompt when the difference value is determined to be greater than the preset difference value.
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