CN114288956A - Reactor temperature control method and device and computer equipment - Google Patents

Abstract

The application provides a reactor temperature control method, a reactor temperature control device and computer equipment, and belongs to the technical field of communication. The method comprises the following steps: calculating the average temperature of the inner ring of the reactor according to the temperature of the inner ring of the reactor, which is acquired by a plurality of inner ring temperature detection devices, wherein each inner ring temperature detection device is respectively arranged in the reactor; determining at least one circulating reactant temperature based on at least one circulating reactant temperature sensing device mounted at a circulating reactant inlet in the reactor; determining a control temperature according to the average temperature of the inner ring of the reactor and the temperature of the circulating reactant; and adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range. The reactor temperature control method and the reactor temperature control device can achieve the effect of accurately controlling the temperature of the reactor.

Description

Reactor temperature control method and device and computer equipment

Technical Field

The application relates to the technical field of communication, in particular to a reactor temperature control method and device and computer equipment.

Background

With the development of modern industries, the process industries such as medicine and chemical industry have been developed, and in these process industries, the reactor is an indispensable device. In industrial processes, there are high demands on the control of the reactor temperature, which has a direct influence on the product quality.

In the related art, generally, in order to control the temperature of the reactor, a plurality of temperature detection devices are installed on the reactor, and then the flow rate and the temperature of the heat exchange medium are adjusted according to the temperature detected by each temperature detection device, so as to control the temperature of the reactor.

However, this solution cannot monitor the overall temperature of the reactor, and cannot precisely control the overall temperature of the reactor according to the overall temperature of the reactor. Therefore, this scheme has a problem in that the temperature of the reactor cannot be precisely controlled.

Disclosure of Invention

The application aims to provide a reactor temperature control method, a reactor temperature control device and computer equipment, which can achieve the effect of accurately controlling the temperature of a reactor.

The embodiment of the application is realized as follows:

in one aspect of the embodiments of the present application, there is provided a reactor temperature control method, including:

calculating the average temperature of the inner ring of the reactor according to the temperature of the inner ring of the reactor, which is acquired by a plurality of inner ring temperature detection devices, wherein each inner ring temperature detection device is respectively arranged in the reactor;

determining at least one circulating reactant temperature based on at least one circulating reactant temperature sensing device mounted at a circulating reactant inlet in the reactor;

determining a control temperature according to the average temperature of the inner ring of the reactor and the temperature of the circulating reactant;

and adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range.

Optionally, a plurality of inner detection rings are arranged inside the reactor, each inner ring temperature detection device is respectively mounted on each inner detection ring, and each inner detection ring is respectively used for detecting the temperature of different positions inside the reactor;

the calculating the average temperature of the inner ring of the reactor according to the inner ring temperature of the reactor collected by the plurality of inner ring temperature detection devices comprises:

calculating the average temperature corresponding to each inner detection ring according to the temperature collected by each inner ring temperature detection device arranged on each inner detection ring;

and calculating the average temperature of the inner ring of the reactor according to the average temperature corresponding to each inner detection ring.

Optionally, the calculating an average temperature of an inner ring of the reactor according to an average temperature corresponding to each inner detection ring includes:

respectively selecting the average temperature of all the inner detection rings, the average temperature of a plurality of inner detection rings arranged on the upper layer of the reactor in each inner detection ring and the average temperature of a plurality of inner detection rings arranged on the lower layer of the reactor in each inner detection ring, and calculating the integral inner ring average temperature of the reactor, the upper layer inner ring average temperature of the reactor and the lower layer inner ring average temperature of the reactor;

and obtaining the inner ring average temperature of the reactor according to the integral inner ring average temperature, the upper layer inner ring average temperature and the lower layer inner ring average temperature.

Optionally, the inner wall of the reactor is further provided with a plurality of outer detection rings, and each outer detection ring is used for detecting the temperature of different positions on the inner wall of the reactor;

the method further comprises the following steps:

calculating the average temperature of the outer detection rings according to the outer ring temperature of the reactor collected by a plurality of outer ring temperature detection devices;

comparing the outer ring temperature of the reactor acquired by each outer ring temperature detection device with the average temperature of the plurality of outer detection rings, if a first temperature error between the outer ring temperature of the reactor acquired by any one of the outer ring temperature detection devices and the average temperature of the plurality of outer detection rings is greater than a first temperature error threshold, determining that the outer ring temperature of the reactor is abnormal, and outputting a first alarm signal, wherein the first alarm signal is used for indicating that the outer ring temperature of the reactor acquired by each outer ring temperature detection device in each outer detection ring is abnormal.

Optionally, the adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range includes:

if the control temperature is larger than the preset temperature range, reducing the flow of a heating medium flow regulating valve in the reactor to reduce the temperature in the reactor;

and if the control temperature is less than or equal to the preset temperature range, increasing the flow of the heating medium flow regulating valve so as to improve the temperature in the reactor.

Optionally, the method further comprises:

determining a second temperature error between the inner ring temperature of the reactor, which is acquired by each inner ring temperature detection device in each inner detection ring in the reactor, and the preset temperature according to the inner ring temperature of the reactor, which is acquired by each inner ring temperature detection device;

and if the second temperature error is larger than a second temperature error threshold value, determining that the temperature of the inner ring of the reactor is abnormal, and outputting a second alarm signal, wherein the second alarm signal is used for indicating that the temperature of the inner ring of the reactor, which is acquired by any one of the inner ring temperature detection devices, is abnormal.

Optionally, the method further comprises:

determining the inner ring temperature change rate of the inner ring temperature of the reactor collected by each inner ring temperature detection device;

if the inner ring temperature change rate is larger than an inner ring temperature change rate threshold value, determining that the inner ring temperature change rate is abnormal, and outputting a third alarm signal, wherein the third alarm signal is used for indicating that the inner ring temperature change rate of the inner ring temperature of the reactor collected by each inner ring temperature detection device is abnormal;

the method further comprises the following steps:

determining the outer ring temperature change rate of the outer ring temperature of the reactor collected by each outer ring temperature detection device;

and if the outer ring temperature change rate is greater than an outer ring temperature change rate threshold value, determining that the outer ring temperature change rate is abnormal, and outputting a fourth alarm signal, wherein the fourth alarm signal is used for indicating that the outer ring temperature change rate of the outer ring temperature of the reactor collected by each outer ring temperature detection device is abnormal.

Optionally, the determining a control temperature from the average temperature of the inner annulus of the reactor and the temperature of the recycled reactant comprises:

and comparing the average temperature of the inner ring of the reactor with the temperature of the circulating reactant, and taking the minimum temperature of the average temperature of the inner ring of the reactor and the temperature of the circulating reactant as the control temperature.

Optionally, after determining at least one recycled reactant temperature based on at least one recycled reactant temperature detection device and determining a control temperature based on the average temperature of the inner annulus of the reactor and the recycled reactant temperature, the method further comprises:

adjusting the temperature of an inner ring of the reactor according to the control temperature and a preset temperature, wherein the preset temperature is greater than the preset temperature range;

according to the control temperature and the preset temperature, adjusting the temperature of the inner ring of the reactor comprises the following steps:

if the control temperature is higher than the preset temperature, the flow of a heating medium flow regulating valve in the reactor is closed, the feeding amount of the reaction materials added into the reactor is reduced, and a feeding heater in the reactor is closed, so that the temperature in the reactor is reduced.

Optionally, the method further comprises:

determining a third temperature error between the inner ring temperature of the reactor acquired by each inner ring temperature detection device in each inner detection ring and the average inner ring temperature of each inner detection ring, wherein the average inner ring temperature of each inner detection ring is obtained by carrying out average calculation on the inner ring temperature of the reactor acquired by each inner ring temperature detection device in each inner detection ring;

and if the third temperature error is larger than a third temperature error threshold value, determining that the temperature of the inner ring of the reactor is abnormal, and outputting a fifth alarm signal, wherein the fifth alarm signal is used for indicating that the temperature of the inner ring of the reactor, which is acquired by each inner ring temperature detection device in each inner detection ring, is abnormal.

In a second aspect of embodiments of the present application, there is provided a reactor temperature control apparatus including:

the calculation module is used for calculating the average temperature of the inner ring of the reactor according to the inner ring temperatures of the reactor collected by the inner ring temperature detection devices;

a first determination module for determining at least one circulating reactant temperature based on at least one circulating reactant temperature detection device;

a second determination model for determining a control temperature based on the average temperature of the inner annulus of the reactor and the temperature of the circulating reactant;

and the adjusting model is used for adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range.

In a third aspect of the embodiments of the present application, there is provided a computer device, the computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the computer program, when executed by the processor, implements the reactor temperature control method of the first aspect.

In a fourth aspect of the embodiments of the present application, a computer-readable storage medium is provided, where a computer program is stored, and the computer program, when executed by a processor, implements the reactor temperature control method according to the first aspect.

The beneficial effects of the embodiment of the application include:

according to the reactor temperature control method provided by the embodiment of the application, the inner ring average temperature of the reactor is calculated according to the inner ring temperatures of the reactor collected by the inner ring temperature detection devices, at least one circulating reactant temperature is determined based on at least one circulating reactant temperature detection device, the control temperature is determined according to the inner ring average temperature and the circulating reactant temperature of the reactor, and the inner ring temperature of the reactor is adjusted according to the control temperature and the preset temperature range. The inner ring temperature of the reactor is collected by using a plurality of inner ring temperature detection devices installed at different positions, so that the inner ring average temperature which can represent the integral average temperature or the local average temperature inside the reactor can be calculated, and the effect of monitoring the integral temperature of the reactor can be achieved. In addition, the temperature of the inner ring of the reactor is adjusted according to the control temperature and the preset temperature range, so that the accurate control of the overall temperature of the reactor according to the overall temperature of the reactor can be realized. Thus, the effect of accurately controlling the temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic diagram of an installation of a temperature detection device on a reactor according to an embodiment of the present disclosure;

FIG. 2 is a schematic view of another embodiment of the present disclosure showing the installation of a temperature detection device on a reactor;

FIG. 3 is a flow chart of a first method for controlling reactor temperature according to an embodiment of the present disclosure;

FIG. 4 is a flow chart of a second method for controlling reactor temperature provided by an embodiment of the present application;

FIG. 5 is a flow chart of a third method for controlling reactor temperature provided in an embodiment of the present application;

FIG. 6 is a flow chart of a fourth method for controlling reactor temperature according to an embodiment of the present disclosure;

FIG. 7 is a flow chart of a fifth method for reactor temperature control according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a reactor temperature control device according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a computer device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the related art, generally, in order to control the temperature of the reactor, a plurality of temperature detection devices are installed on the reactor, and then the flow rate and the temperature of the heat exchange medium are adjusted according to the temperature detected by each temperature detection device, so as to control the temperature of the reactor. However, this solution cannot monitor the overall temperature of the reactor, and cannot precisely control the overall temperature of the reactor according to the overall temperature of the reactor. Therefore, this scheme has a problem in that the temperature of the reactor cannot be precisely controlled. In addition, reactors are often used in chemical reactions such as polymerization, hydrogenation, etc., which are often accompanied by strong exotherms, which, if the temperature of the reactor cannot be precisely controlled, can lead to problems of low quality of the produced chemical product, and may even cause problems of explosion of the reactor. In conclusion, the scheme has the problems of poor accuracy of temperature control and poor reliability and safety of the reactor.

To this end, the embodiment of the present application provides a reactor temperature control method, in which an inner ring average temperature of a reactor is calculated according to inner ring temperatures of the reactor collected by a plurality of inner ring temperature detection devices, at least one circulating reactant temperature is determined based on at least one circulating reactant temperature detection device, a control temperature is determined according to the inner ring average temperature of the reactor and the circulating reactant temperature, and the inner ring temperature of the reactor is adjusted according to the control temperature and the preset temperature range, so that an effect of accurately controlling the temperature of the reactor can be achieved.

The present embodiment will be described by taking a reactor temperature control method applied to a reactor as an example. It is not shown that the examples of the present application can be applied only to the reactor temperature control in the reactor.

Fig. 1 is a schematic view of an installation of a temperature detection device on a reactor according to an embodiment of the present disclosure. The temperature detection device may include an inner ring temperature detection device and an outer ring temperature detection device. As shown in fig. 1, the embodiment of the present application will be described by taking as an example that a plurality of inner detection rings are provided inside the reactor and a plurality of outer detection rings are further provided on the inner wall of the reactor. But the communication control method provided by the embodiment of the present application is not represented, and can only be applied to a reactor in which a plurality of inner detection rings are arranged and a plurality of outer detection rings are arranged on the inner wall.

Alternatively, the reactor may be a reactor applied to process industries such as medicine, chemical engineering, etc., for example, the reactor may be a continuous stirred tank reactor or a hydrogenation reactor. The embodiments of the present application do not limit this.

Optionally, each inner ring temperature detection device is mounted on each inner detection ring.

Optionally, each inner detection ring is used for detecting the temperature of different positions inside the reactor.

Optionally, the outer ring temperature detection devices are respectively mounted on the outer detection rings.

Optionally, each outer detection ring is used for detecting the temperature of different positions on the inner wall of the reactor.

For example, referring to fig. 1, the present embodiment is described by taking as an example that 9 outer detection rings of W1, W2, W3, W4, W5, W6, W7, W8, and W9 are disposed on the inner wall of the reactor, and 7 inner detection rings of N1, N2, N3, N4, N5, N6, and N7 are disposed inside the reactor.

Illustratively, the reactor may be divided into three sections, an upper layer, a lower layer and a middle layer. Wherein, no inner detection ring may be provided on the inner a1 of the upper layer of the reactor, inner detection rings N1, N2, N3, N4, N5 and N6 are provided on the inner a2 of the middle layer of the reactor, an inner detection ring N7 is provided on the inner A3 of the lower layer of the reactor, and 6 inner ring temperature detection devices D may be installed on the inner detection rings N1, N2, N3, N4, N5, N6 and N7, respectively, as shown in fig. 1. Of course, the number of the inner detection rings provided on the inner wall of the reactor may be adjusted according to actual needs, the number of the inner ring temperature detection devices attached to the respective inner detection rings may be adjusted according to actual needs, and at least one inner detection ring may be provided in the upper interior a1 of the reactor according to actual needs. The embodiments of the present application do not limit this.

In addition, an outer detection ring W1 is provided on the inner wall B1 of the upper stage of the reactor, outer detection rings W2, W3, W4, W5, W6 and W7 are provided on the inner wall B2 of the middle stage of the reactor, and 3 outer ring temperature detection devices C may be installed on the outer detection rings W1, W2, W3, W4, W5, W6 and W7, respectively, as shown in fig. 1. And the inner wall B3 of the lower layer of the reactor is provided with outer detection rings W8 and W9, and 6 outer ring temperature detection devices C can be respectively arranged on the outer detection rings W8 and W9 as shown in FIG. 1. Naturally, the number of the outer detection rings arranged on the inner wall of the reactor can be adjusted according to actual needs, and the number of the outer ring temperature detection devices arranged on each outer detection ring can also be adjusted according to actual needs. The embodiments of the present application do not limit this.

Fig. 2 is a schematic view of the installation of the temperature detection devices on the reactor provided in the embodiment of the present application, and in particular, a sectional view of the installation positions of the temperature detection devices on the reactor. Referring to fig. 2, the middle outer detection ring W5 and the inner detection ring N4 are taken as examples. It can be seen that the outer detection ring W5 is attached to the inner wall B2 of the middle layer of the reactor, that is, the outer ring temperature detection device C attached to the outer detection ring W5 is also attached to the inner wall B2 of the middle layer of the reactor. And the inner detection ring N4 is not attached to the inner wall B2 of the intermediate layer of the reactor but is disposed in the inner space in the reactor, the inner ring temperature detection device D mounted on the inner detection ring N4 is disposed in the inner space in the reactor.

The above descriptions of the inner detection ring, the inner ring temperature detection device, the outer detection ring and the outer ring temperature detection device provided on the reactor are only for explaining the installation position of the temperature detection device on the reactor provided in the embodiments of the present application, and do not represent that the reactor temperature control method provided in the embodiments of the present application can only be applied to the reactor installed according to the above exemplary contents for temperature control.

The method for controlling the temperature of the reactor provided in the examples of the present application will be explained in detail below.

Fig. 3 is a flowchart of a reactor temperature control method provided in the present application, which may be applied to a computer device, which may be an electronic device with a processing function connected to each temperature detection device in the above reactor. Referring to fig. 3, an embodiment of the present application provides a reactor temperature control method, including:

step 1001: and calculating the average temperature of the inner ring of the reactor according to the inner ring temperature of the reactor collected by the plurality of inner ring temperature detection devices.

Alternatively, each inner ring temperature detection device may be a temperature sensor, or may be another device capable of detecting temperature. For example, it may be a resistance-thermal temperature sensor, a thermocouple, or a thermopile. The embodiments of the present application do not limit this.

Alternatively, the inner ring temperature detecting devices may be respectively installed inside the reactor, and may specifically be respectively fixedly installed in the inner space of the reactor in a certain manner. In addition, each inner ring temperature detecting means may not be attached to the inner wall of the reactor. The embodiments of the present application do not limit this.

Alternatively, the inner ring temperature detecting means may be installed at different positions in the interior of the reactor, respectively, and the distance between the inner ring temperature detecting means may be large.

For example, the inner ring temperature detecting devices may be installed in an even distribution in a space inside an upper layer of the reactor, a space inside an intermediate layer of the reactor, and a space inside a lower layer of the reactor. The temperature detecting means may be installed in the reactor according to a predetermined rule, for example, only the inner ring temperature detecting means may be installed in the middle layer of the reactor and in the lower layer of the reactor. The embodiments of the present application do not limit this.

Alternatively, the inner ring temperature of the reactor may refer to the temperature of the inner space of the reactor. The embodiments of the present application do not limit this.

Alternatively, the average temperature of the inner ring of the reactor may be obtained by summing the temperatures detected by all the inner ring temperature detection devices installed inside the reactor and dividing by the number of all the inner ring temperature detection devices installed inside the reactor. Or by summing the temperatures detected by a portion of the inner ring temperature detecting means installed inside the reactor and dividing by the number of the portion of the inner ring temperature detecting means. In addition, the inner ring temperature detection device of this part may be an inner ring temperature detection device installed in an intermediate layer of the reactor, or may be any plurality of inner ring temperature detection devices installed in the reactor selected by a person skilled in the art. The embodiments of the present application do not limit this.

Alternatively, the average temperature of the inner ring of the reactor may be used to characterize the average temperature of the whole interior of the reactor, or may be used to characterize the average temperature of any one of the upper layer, the middle layer or the lower layer of the interior of the reactor, or may be used to characterize the average temperature of any two of the upper layer, the middle layer or the lower layer of the interior of the reactor. It can be determined specifically according to the position at which each inner ring temperature detection device for calculating the average temperature of the inner ring is installed inside the reactor. The embodiments of the present application do not limit this.

It is to be noted that the temperature of the inner ring of the reactor is collected by using a plurality of inner ring temperature detecting means installed at different positions, so that the average temperature of the inner ring, which can be indicative of the global average temperature or the local average temperature inside the reactor, can be calculated from the collected plurality of inner ring temperatures at different positions of the reactor. So, can reach the effect of monitoring the bulk temperature of this reactor, and then can improve the accuracy nature to the temperature control of this reactor.

Step 1002: at least one recycled reactant temperature is determined based on at least one recycled reactant temperature detection device.

Alternatively, the circulating reactant temperature detecting means may be installed at the circulating reactant inlet in the reactor.

Alternatively, the circulating reactant inlet in the reactor may refer to a passage for feeding the circulating reactant into the interior of the reactor.

Alternatively, the recycled reactant may be a catalyst that increases the rate of the chemical reaction, or a chemical reactant that has been directly involved in the chemical reaction in a previous chemical reaction and has not been consumed. The embodiments of the present application do not limit this.

Alternatively, the circulating reactant temperature detection device may be a temperature sensor, or may be another device capable of detecting temperature. For example, it may be a resistance-thermal temperature sensor, a thermocouple, or a thermopile. The embodiments of the present application do not limit this.

Alternatively, the temperature of the recycled reactant may be the temperature of the recycled reactant as it enters the recycled reactant inlet in the reactor, or may be the temperature of the recycled reactant as it is about to exit the recycled reactant inlet in the reactor.

It is noted that three circulating reactant temperature detecting means may be provided at the circulating reactant inlet in the reactor, so that in the case where the circulating reactant enters or leaves the circulating reactant inlet in the reactor, the three circulating reactant temperature detecting means may obtain one circulating reactant temperature for three circulating reactant temperatures, respectively. And, the temperature of the three circulating reactants can be compared to determine a temperature value with the highest temperature or the lowest temperature or the moderate temperature as the temperature of the circulating reactants needed to execute the subsequent steps. Of course, the number of the circulating reactant temperature detection devices can be set according to actual requirements. The embodiments of the present application do not limit this.

It should be noted that if a plurality of cyclic reactant temperature detection devices are provided, when one of the cyclic reactant temperature detection devices fails or a detected temperature error is large, an accurate cyclic reactant temperature can be determined according to the other cyclic reactant temperature detection devices. In this way, the accuracy of the determined temperature of the recycled reactant may be improved, and the reliability of the determined temperature of the recycled reactant may also be improved. In this way, the accuracy and reliability of temperature control of the reactor can be improved.

Step 1003: a control temperature is determined based on the average temperature of the inner annulus of the reactor and the temperature of the recycled reactants.

Alternatively, the control temperature may be used to indicate that the temperature of the inner reactor ring is too high or too low. Can also be used as a reference temperature for controlling the temperature of the inner ring of the reactor.

Since the average temperature of the inner ring of the reactor and the temperature of the recycled reactant obtained through the above steps are accurate, the control temperature determined based on the average temperature of the inner ring of the reactor and the temperature of the recycled reactant is also accurate.

Step 1004: and adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range.

Optionally, the preset temperature range may be set in advance, and the preset temperature range may be set to be larger, for example, the preset temperature range may be set to be greater than or equal to 100 degrees celsius and less than or equal to 500 degrees celsius, and of course, the preset temperature range may also be set to be other possible temperature ranges according to actual needs. The embodiments of the present application do not limit this.

Alternatively, the adjusting of the temperature of the inner ring of the reactor may be adjusting the local average temperature of any one of the upper layer, the middle layer or the lower layer inside the reactor, or adjusting the local average temperature of any two of the upper layer, the middle layer or the lower layer inside the reactor, or adjusting the overall average temperature of the whole inside of the reactor. The embodiments of the present application do not limit this.

It should be noted that, since the control temperature is determined by the average temperature of the inner ring of the reactor and the temperature of the recycled reactant, the temperature of the inner ring of the reactor can be adjusted according to the control temperature and the preset temperature range, so that the overall temperature of the reactor can be accurately controlled according to the overall temperature of the reactor. Thus, the effect of precisely controlling the temperature of the reactor can be achieved.

In the embodiment of the application, the inner ring temperature of the reactor is calculated according to the inner ring temperatures of the reactor collected by a plurality of inner ring temperature detection devices, at least one circulating reactant temperature is determined based on at least one circulating reactant temperature detection device, a control temperature is determined according to the inner ring average temperature of the reactor and the circulating reactant temperature, and the inner ring temperature of the reactor is adjusted according to the control temperature and a preset temperature range. The inner ring temperature of the reactor is acquired by using a plurality of inner ring temperature detection devices installed at different positions, so that the inner ring average temperature which can represent the integral average temperature or the local average temperature inside the reactor can be calculated, and the effect of monitoring the integral temperature of the reactor can be achieved. In addition, the temperature of the inner ring of the reactor is adjusted according to the control temperature and the preset temperature range, so that the accurate control of the overall temperature of the reactor according to the overall temperature of the reactor can be realized. Thus, the effect of accurately controlling the temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

As described above, the reactor may be provided with a plurality of inner detection rings, and the inner ring temperature detection devices are respectively mounted on the inner detection rings, and the inner detection rings are respectively used for detecting the temperatures of different positions in the reactor.

In one possible implementation, referring to fig. 4, calculating an average temperature of the inner ring of the reactor according to the temperatures of the inner ring of the reactor collected by the plurality of inner ring temperature detection devices includes:

step 1005: and calculating the average temperature corresponding to each inner detection ring according to the temperature collected by each inner ring temperature detection device arranged on each inner detection ring.

Alternatively, each inner detection ring may be circular, rectangular, triangular, or any other possible shape. The embodiments of the present application do not limit this.

Optionally, the inner detection rings may be equidistant or non-equidistant, and may be specifically set according to actual requirements. The embodiments of the present application do not limit this.

Optionally, the planes of the inner detection rings may be parallel or non-parallel. In addition, the plane of each inner detection ring can be parallel to the ground or perpendicular to the vertical symmetry axis of the reactor. The embodiments of the present application do not limit this.

Alternatively, the inner ring temperature detection devices may be equidistantly installed in the inner detection rings, and the inner ring temperature detection devices may be installed at any position on the inner detection rings. The embodiments of the present application do not limit this.

Alternatively, the average temperature corresponding to each inner detection ring may be calculated from all the inner ring temperature detection devices installed in each inner detection ring. That is, the average temperature corresponding to each inner detection ring is determined by all inner ring temperature detection devices in each inner detection ring, respectively.

For example, with continued reference to fig. 1, the average temperature corresponding to the inner detection ring N1 may be calculated from the 6 inner ring temperature detection devices C installed in the inner detection ring N1 disposed on the inner portion a2 of the middle layer of the reactor, for example, if the temperatures collected by the 6 inner ring temperature detection devices C installed in the inner detection ring N1 are 120 degrees celsius, 110 degrees celsius, 130 degrees celsius, 100 degrees celsius, 140 degrees celsius, and 120 degrees celsius, respectively, then the average temperature corresponding to the inner detection ring N1 is the sum of the temperatures collected by the 6 inner ring temperature detection devices C divided by 6, and then the average temperature corresponding to the inner detection ring N1 may be calculated as 120 degrees celsius.

In this way, the average temperature of the inner detection rings installed at different positions on the reactor can be accurately determined, and the average temperature of the inner detection rings installed at different positions on the reactor can be accurately determined.

Step 1006: and calculating the average temperature of the inner ring of the reactor according to the average temperature corresponding to each inner detection ring.

Alternatively, the average temperature of the inner ring of the reactor can be calculated by summing the average temperatures corresponding to all the inner detection rings and dividing by the number of all the inner detection rings, and the average temperature of the inner ring of the reactor thus calculated can be used to represent the overall average temperature of the reactor.

Illustratively, with continued reference to fig. 1, the inner a2 of the middle layer of the reactor is provided with inner detection rings N1, N2, N3, N4, N5 and N6, the inner A3 of the lower layer of the reactor is provided with inner detection ring N7, for example, the inner detection rings N1, N2, N3, N4, N5, N6 and N7 have average temperatures of 1200 degrees celsius, 1100 degrees celsius, 1300 degrees celsius, 1000 degrees celsius, 1400 degrees celsius and 1200 degrees celsius, respectively, and the average inner ring temperature of the reactor can be found to be 1200 degrees celsius. Since the inner part a1 of the upper layer of the reactor is not provided with an inner detection ring, the average temperature of the inner ring at 1200 degrees celsius can also represent the overall average temperature of the reactor.

It is worth mentioning that the average temperature of the inner rings, which can represent the overall average temperature or the local average temperature inside the reactor, is calculated by obtaining the average temperature of the inner rings installed at different positions and then calculating the average temperature of the inner rings according to the average temperature of the inner rings installed at different positions. So, can reach the effect of monitoring the bulk temperature of this reactor, and then can improve the accuracy nature to the temperature control of this reactor.

In one possible implementation, referring to fig. 5, calculating the average temperature of the inner ring of the reactor according to the average temperature corresponding to each inner detection ring includes:

step 1007: and respectively selecting the average temperature of all the inner detection rings, the average temperature of a plurality of inner detection rings arranged on the upper layer of the reactor in each inner detection ring and the average temperature of a plurality of inner detection rings arranged on the lower layer of the reactor in each inner detection ring, and calculating the integral inner ring average temperature of the reactor, the upper layer inner ring average temperature of the reactor and the lower layer inner ring average temperature of the reactor.

Alternatively, if the average temperature of all the inner detection rings is chosen, the overall inner ring average temperature of the reactor can be calculated. If the average temperature of a plurality of inner detection rings installed in the upper layer of the reactor among the inner detection rings is selected, the average temperature of the inner rings in the upper layer of the reactor can be calculated. If the average temperature of a plurality of inner detection rings installed in the lower layer of the reactor among the inner detection rings is higher than the average temperature of the inner detection rings installed in the lower layer of the reactor, the average temperature of the inner rings in the lower layer of the reactor can be calculated.

Of course, if the average temperature of the plurality of inner detection rings installed in the intermediate layer of the reactor among the inner detection rings is selected, the average temperature of the inner rings in the intermediate layer of the reactor can be calculated. The embodiments of the present application do not limit this.

Illustratively, with continued reference to fig. 1, the interior a2 of the middle tier of the reactor is provided with inner detection rings N1, N2, N3, N4, N5 and N6, and if the average temperature of the inner detection rings N1, N2, N3, N4, N5 and N6 installed in the middle tier of the reactor is selected, the average temperature of the inner rings of the middle tier of the reactor can be calculated, which can be used to characterize the average temperature of the interior a2 of the middle tier of the reactor.

Of course, if the inner detection ring N7 installed on the inner A3 of the lower layer of the reactor is selected, the lower inner ring average temperature of the reactor can be calculated, which can be used to characterize the average temperature of the inner A3 of the lower layer of the reactor. The embodiments of the present application do not limit this.

In this way, the average temperature of the inner ring of the whole or parts of the reactor can be accurately found to perform the subsequent steps.

Step 1008: and obtaining the inner ring average temperature of the reactor according to the integral inner ring average temperature, the upper layer inner ring average temperature and the lower layer inner ring average temperature.

Alternatively, any one of the bulk inner ring average temperature, the upper layer inner ring average temperature and the lower layer inner ring average temperature may be selected as the inner ring average temperature of the reactor.

For example, the inner-ring average temperature of the reactor may be selected as the inner-ring average temperature of the bulk inner-ring average temperature, the inner-ring average temperature of the upper layer, and the inner-ring average temperature of the lower layer, in which the temperature value is the largest. The inner-ring average temperature of the reactor may be selected as an inner-ring average temperature of the whole, the inner-ring average temperature of the upper layer, and the inner-ring average temperature of the lower layer, which have the smallest temperature value. An inner-ring average temperature having a moderate value among the bulk inner-ring average temperature, the upper inner-ring average temperature, and the lower inner-ring average temperature may also be selected as the inner-ring average temperature of the reactor. The embodiments of the present application do not limit this.

It is to be noted that the average temperature of the inner rings installed at different positions is obtained, and then the average temperature of the inner rings in the entire reactor, or the average temperature of the inner rings in the upper layer, or the average temperature of the inner rings in the lower layer, or the average temperature of the inner rings in the intermediate layer is calculated based on the average temperature of the inner rings installed at different portions in the reactor. Therefore, the effect of monitoring the overall temperature or the local temperature of the reactor can be achieved, and the accuracy of temperature control of the reactor can be improved.

As mentioned above, the inner wall of the reactor is further provided with a plurality of outer detection rings, and each outer detection ring is used for detecting the temperature of different positions on the inner wall of the reactor.

In a possible implementation, the method further includes:

and calculating the average temperature of the outer detection rings according to the outer ring temperature of the reactor collected by the outer ring temperature detection devices.

Alternatively, each outer ring temperature detection device may be a temperature sensor, or may be another device capable of detecting temperature. For example, it may be a resistance-thermal temperature sensor, a thermocouple, or a thermopile. The embodiments of the present application do not limit this.

Alternatively, the outer ring temperature detecting means may be installed on the inner wall of the reactor, respectively.

Alternatively, the outer ring temperature detecting devices may be installed at different positions on the inner wall of the reactor, respectively, and the distance between the outer ring temperature detecting devices may be large.

For example, the outer ring temperature detecting devices may be installed on the inner wall of the upper layer of the reactor, the inner wall of the middle layer of the reactor, and the inner wall of the lower layer of the reactor in an even distribution. It may be installed on the inner wall of the reactor according to a certain rule, for example, the outer ring temperature detecting devices may be installed only on the inner wall of the middle layer of the reactor and the inner wall of the lower layer of the reactor. The embodiments of the present application do not limit this.

Alternatively, the outer loop temperature of the reactor may refer to the temperature on the inner wall of the reactor.

Alternatively, the shape of the outer detection rings may be adjusted according to the shape of the inner wall of the reactor, for example, if the reactor has a cylindrical inner wall, then the outer detection rings may be circular. The embodiments of the present application do not limit this.

Optionally, the outer detection rings may be equidistant or non-equidistant, and may be specifically set according to actual requirements. The embodiments of the present application do not limit this.

Optionally, the plane of each outer detection ring may be parallel to the plane of any inner detection ring, or may be perpendicular to the plane of any inner detection ring.

Illustratively, with reference to fig. 1, an outer detection ring W1 is disposed on an inner wall B1 of the upper layer of the reactor, 3 outer ring temperature detection devices D are mounted on the outer detection ring W1, and if the temperatures collected by the 3 outer ring temperature detection devices D are 50 degrees celsius, 55 degrees celsius, and 60 degrees celsius, the average temperature of the outer detection ring W1 can be calculated to be 55 degrees celsius. As a matter of course, the average temperature of each outer detection ring can be calculated in this manner, and the average temperatures of the plurality of outer detection rings can be calculated based on the average temperature of each outer detection ring.

Illustratively, with continued reference to fig. 1, the average temperature of the outer detection rings W2, W3, W4, W5, W6 and W7 may be directly found from the outer ring temperatures collected by the plurality of outer ring temperature detection devices D installed in the outer detection rings W2, W3, W4, W5, W6 and W7 provided on the inner wall B2 of the intermediate layer of the reactor, and the average temperature of the outer detection rings W2, W3, W4, W5, W6 and W7 may be used to indicate the average temperature of the inner wall B2 of the intermediate layer of the reactor.

In this way, the average temperature of the plurality of outer detection rings can be accurately calculated, and since the plurality of outer detection rings are installed at different positions on the inner wall of the reactor, the average temperature of different positions on the inner wall of the reactor can be accurately determined.

And respectively comparing the outer ring temperature of the reactor acquired by each outer ring temperature detection device with the average temperature of the plurality of outer detection rings, and if a first temperature error between the outer ring temperature of the reactor acquired by any one of the outer ring temperature detection devices and the average temperature of the plurality of outer detection rings is greater than a first temperature error threshold value, determining that the outer ring temperature of the reactor is abnormal and outputting a first alarm signal.

Alternatively, the first temperature error may be an absolute value of a difference between the outer ring temperature of the reactor collected by each outer ring temperature detection device and the average temperature of the plurality of outer detection rings.

Optionally, the first temperature error threshold may be set in advance, for example, the first temperature error threshold may be set to 2 degrees celsius, and of course, the first temperature error threshold may also be set to other temperature values. The embodiments of the present application do not limit this.

Alternatively, the first alarm signal may be a signal indicating that the outer ring temperature of the reactor collected by each outer ring temperature detecting device in each outer detecting ring is abnormal. The first alarm signal can be a signal in the form of characters, images, lights or the like, and can remind related technicians of shutdown operation or other corresponding operations.

Therefore, the temperature of the inner wall of the reactor can be detected through the outer ring temperature of the reactor, collected by each outer ring temperature detection device arranged on the inner wall of the reactor, so that the effect of monitoring the overall temperature of the auxiliary reactor is achieved. In addition, the related technical personnel can be reminded through the first alarm signal. Thus, the effect of accurately controlling the temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

In one possible implementation, referring to fig. 6, the adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range includes:

step 1009: if the control temperature is larger than the preset temperature range, the flow of the heating medium flow regulating valve in the reactor is reduced so as to reduce the temperature in the reactor.

Alternatively, the heating medium may be steam with high temperature and high pressure, and the heating medium may provide a certain amount of heat to the reactor.

Alternatively, the heating medium flow regulating valve may be a valve for controlling the flow of the heating medium fed into the tank reactor.

Alternatively, the heat supplied to the reactor by the high-temperature and high-pressure steam can be reduced by reducing the flow rate of the heating medium flow regulating valve in the reactor.

Alternatively, the control temperature being greater than or equal to the preset temperature range may refer to being greater than or equal to a maximum temperature value in the preset temperature range.

Alternatively, if the control temperature is greater than the preset temperature range, it may indicate that the temperature of the inner ring of the reactor is too high, and a temperature reduction operation is required.

Step 1010: if the control temperature is less than or equal to the preset temperature range, the flow of the heating medium flow regulating valve is increased so as to improve the temperature in the reactor.

Alternatively, the heat supplied to the reactor by the high-temperature and high-pressure steam can be reduced by reducing the flow rate of the heating medium flow regulating valve in the reactor.

Alternatively, the control temperature being less than or equal to the preset temperature range may refer to being less than or equal to a minimum temperature value in the preset temperature range.

Alternatively, the control temperature being less than or equal to the preset temperature range may indicate that the temperature of the inner ring of the reactor is low, and a temperature raising operation is required.

In this way, the temperature of the inner ring of the reactor can be accurately controlled according to the control temperature to ensure that the temperature of the inner ring of the reactor is in a proper temperature range. Thus, the effect of accurately controlling the temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

In a possible implementation, the method further includes:

and determining a second temperature error between the inner ring temperature of the reactor collected by each inner ring temperature detection device in each inner detection ring in the reactor and a preset temperature according to the inner ring temperature of the reactor collected by each inner ring temperature detection device.

Optionally, the preset temperature may be set in advance, and may be set to different values according to actual conditions, for example, the preset temperature may be set to 500 degrees celsius.

Alternatively, the second temperature error may be an absolute value of a difference between the inner ring temperature of the reactor and the preset temperature, which is collected by each inner ring temperature detection device.

And if the second temperature error is larger than a second temperature error threshold value, determining that the temperature of the inner ring of the reactor is abnormal, and outputting a second alarm signal.

Optionally, the second temperature error threshold may be set in advance, for example, the second temperature error threshold may be set to 2 degrees celsius, and of course, the second temperature error threshold may also be set to other temperature values. The embodiments of the present application do not limit this.

Optionally, the second alarm signal is used for indicating that the temperature of the inner ring of the reactor collected by any one of the inner ring temperature detection devices is abnormal. The second alarm signal may be used to alert an associated technician to a shutdown operation or other corresponding operation.

Therefore, the inner ring temperature of the reactor can be detected through the inner ring temperature of the reactor collected by each inner ring temperature detection device arranged in the reactor, so that the effect of monitoring the overall temperature of the reactor is achieved.

In a possible implementation, the method further includes:

and determining the inner ring temperature change rate of the inner ring temperature of the reactor collected by each inner ring temperature detection device.

Alternatively, the inner ring temperature change rate may be calculated by dividing the inner ring temperature change amount by a unit time.

And if the inner ring temperature change rate is greater than the inner ring temperature change rate threshold value, determining that the inner ring temperature change rate is abnormal, and outputting a third alarm signal.

Alternatively, the inner-ring temperature change rate threshold may be set in advance, for example, the inner-ring temperature change rate threshold may be set to 3 degrees celsius per minute.

Optionally, the third alarm signal is used to indicate that the inner ring temperature change rate of the inner ring temperature of the reactor collected by each inner ring temperature detection device is abnormal. The third alarm signal can be used to alert the associated technician to a shutdown operation or other corresponding operation.

Therefore, the effect of assisting in monitoring the overall temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

In a possible implementation, the method further includes:

and determining the outer ring temperature change rate of the outer ring temperature of the reactor, which is acquired by each outer ring temperature detection device.

Alternatively, the outer ring temperature change rate may be calculated by dividing the outer ring temperature change amount by a unit time.

And if the outer ring temperature change rate is greater than the outer ring temperature change rate threshold value, determining that the outer ring temperature change rate is abnormal, and outputting a fourth alarm signal.

Alternatively, the outer loop temperature change rate threshold may be set in advance, for example, the outer loop temperature change rate threshold may be set to 3 degrees celsius per minute.

Optionally, the fourth alarm signal is used for indicating that the outer ring temperature change rate of the outer ring temperature of the reactor collected by each outer ring temperature detection device is abnormal.

Therefore, the effect of assisting in monitoring the overall temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

In one possible implementation, determining a control temperature based on the average temperature of the inner annulus of the reactor and the temperature of the recycled reactants comprises:

comparing the average temperature of the inner ring of the reactor with the temperature of the recycled reactant, and taking the minimum temperature of the average temperature of the inner ring of the reactor and the temperature of the recycled reactant as the control temperature.

Alternatively, the maximum temperature of the average temperature of the inner ring of the reactor and the temperature of the circulating reactant may be used as the control temperature.

In this way, the flexibility of controlling the temperature of the reactor can be increased.

In one possible implementation, after determining at least one recycled reactant temperature based on at least one recycled reactant temperature detection device and determining a control temperature based on an average temperature of an inner annulus of the reactor and the recycled reactant temperature, the method further comprises:

and adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature.

Optionally, the preset temperature is greater than a maximum temperature value in the preset temperature range.

Further, adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature comprises:

if the control temperature is higher than the preset temperature, the flow of a heating medium flow regulating valve in the reactor is closed, the feeding amount of the reaction materials added into the reactor is reduced, and a feeding heater in the reactor is closed, so that the temperature in the reactor is reduced.

Alternatively, the control temperature being greater than the preset temperature may indicate that the temperature of the inner ring of the reactor is particularly high, requiring a rapid temperature decrease.

It is noted that the reactants are generally preheated by the feed heater in the reactor, i.e., the reactants added to the reactor are also heated, and reducing the amount of reactant added and turning off the feed heater in the reactor can help to reduce the temperature inside the reactor. In addition, the flow of the heating medium in the reactor is closed by closing the flow regulating valve so that the flow of the heating medium becomes zero, thereby rapidly reducing the temperature inside the reactor. In this way, the temperature of the reactor can be rapidly controlled.

In a possible implementation, the method further includes:

and determining a third temperature error between the inner ring temperature of the reactor collected by each inner ring temperature detection device in each inner detection ring and the average inner ring temperature of each inner detection ring.

Optionally, the average inner ring temperature of each inner detection ring is obtained by performing average calculation on the inner ring temperature of the reactor collected by each inner ring temperature detection device in each inner detection ring.

Alternatively, the third temperature error may be an absolute value of a difference between the inner ring temperature of the reactor collected by each inner ring temperature detection device in each inner detection ring and the average inner ring temperature of each inner detection ring.

And if the third temperature error is larger than a third temperature error threshold value, determining that the temperature of the inner ring of the reactor is abnormal, and outputting a fifth alarm signal.

Alternatively, the third temperature error threshold may be set in advance, and the third temperature error threshold may be set to 2 degrees celsius. The embodiments of the present application do not limit this.

Optionally, the fifth alarm signal is used to indicate that the inner ring temperature of the reactor collected by each inner ring temperature detection device in each inner detection ring is abnormal.

Thus, the effect of monitoring the overall temperature of the auxiliary reactor can be achieved. In addition, the related technical personnel can be reminded through the fifth alarm signal. Thus, the effect of accurately controlling the temperature of the reactor can be achieved, and the reliability and safety of the reactor can be improved.

In one possible implementation, the method may further include:

determining the number of failed inner ring temperature detection devices in each inner ring temperature detection device in the reactor and the number of failed outer ring temperature detection devices in each outer ring temperature detection device in the reactor.

And if the number of the failed inner ring temperature detection devices or the number of the failed outer ring temperature detection devices is larger than a preset number threshold, outputting a sixth alarm signal.

Optionally, the preset number threshold may be set according to actual situations, for example, the preset number threshold may be set to 2, and the preset number threshold may also be set to 3. The embodiments of the present application do not limit this.

Optionally, the sixth alarm signal is used to indicate that the number of failed inner ring temperature detection devices in each inner ring temperature detection device in the reactor and/or the number of failed outer ring temperature detection devices in each outer ring temperature detection device in the reactor is greater than a preset number threshold.

Therefore, the fault condition of each temperature detection device in the reactor can be reminded to relevant technicians, and effective assistance can be provided for the relevant technicians.

In a possible implementation manner, the inner ring temperature detection device of the reactor may adopt a mode of one main inner ring temperature detection device and one standby inner ring temperature detection device, that is, one standby inner ring temperature detection device may be provided for each inner ring temperature detection device of the reactor.

Alternatively, the operator may switch the main inner ring temperature detection device and the standby inner ring temperature detection device through the monitoring software platform.

Alternatively, the standby inner ring temperature detection device may be installed at the same position as the corresponding main inner ring temperature detection device.

Alternatively, a standby inner ring temperature detection device corresponding to any one of the main inner ring temperature detection devices may be automatically switched to in the event of a failure of the main inner ring temperature detection device.

Therefore, the reliability and the accuracy of temperature detection can be improved, the effect of accurately controlling the temperature of the reactor can be achieved, and the reliability and the safety of the reactor can be improved.

In a possible implementation, the method further includes:

and determining a fourth temperature error between the inner ring temperature of the reactor collected by each main inner ring temperature detection device and the inner ring temperature of the reactor collected by the corresponding standby inner ring temperature detection device.

Alternatively, the fourth temperature error may be an absolute value of a difference between the inner ring temperature of the reactor collected by each main inner ring temperature detection device and the inner ring temperature of the reactor collected by the corresponding backup inner ring temperature detection device.

And if the fourth temperature error is larger than a fourth temperature error threshold value, determining that the main inner ring temperature detection device and the standby inner ring temperature detection device of the reactor detect abnormity, and outputting a seventh alarm signal.

Alternatively, the fourth temperature error threshold may be set according to actual conditions, for example, the fourth temperature error threshold may be set to 2 degrees celsius. The embodiments of the present application do not limit this.

Optionally, the seventh alarm signal is used to indicate that the absolute value of the difference between the inner ring temperature of the reactor collected by each main inner ring temperature detection device in the reactor and the inner ring temperature of the reactor collected by the corresponding standby inner ring temperature detection device is greater than the fourth temperature error threshold.

Therefore, the main inner ring temperature detection equipment and the corresponding standby inner ring temperature detection equipment of the related technical personnel can be reminded of the possible fault condition, and effective maintenance assistance can be provided for the related technical personnel.

In one possible mode, referring to fig. 7, in the case where the average temperature of all the inner detection rings, the average temperature of the plurality of inner detection rings installed in the upper layer of the reactor in each inner detection ring, and the average temperature of the plurality of inner detection rings installed in the lower layer of the reactor in each inner detection ring are respectively selected, the upper layer inner ring average temperature T1 of the reactor, the whole inner ring average temperature T2 of the reactor, and the lower layer inner ring average temperature T3 of the reactor are calculated, and the plurality of cyclic reactant temperature detection means determine the plurality of cyclic reactant temperatures X, it is possible to select one temperature value from any one of the upper layer inner ring average temperature T1 of the reactor, the whole inner ring average temperature T2 of the reactor, and the lower layer inner ring average temperature T3 of the reactor as the inner ring average temperature of the reactor, and select one cyclic reactant temperature value X from any one of the plurality of cyclic reactant temperatures X, and comparing the average temperature of the inner ring of the reactor with the temperature of the circulating reactant, and taking the minimum temperature of the average temperature of the inner ring of the reactor and the temperature of the circulating reactant as the control temperature.

Then, the control temperature is compared with the preset temperature range to determine whether the temperature of the inner ring of the reactor is too high or too low, so as to execute corresponding temperature reduction operation or temperature rise operation.

Illustratively, the overall inner ring average temperature T2 of the reactor is selected as the inner ring average temperature of the reactor, the overall inner ring average temperature T2 is 200 degrees celsius, and the temperature value of a cycle reactant temperature value X arbitrarily selected from a plurality of cycle reactant temperatures X is 300 degrees celsius, then the control temperature may be determined to be 200 degrees celsius.

For example, assuming that the preset temperature range is 50 to 150 degrees celsius, the control temperature is greater than the maximum value of the preset temperature range, step 1009 is performed to reduce the flow of the heating medium flow regulating valve, so as to achieve the effect of reducing the temperature inside the reactor until the control temperature is not greater than the maximum value of the preset temperature range.

For another example, if the preset temperature range is 300 to 400 degrees celsius, and the control temperature is smaller than the minimum value of the preset temperature range, step 1010 needs to be executed to increase the flow rate of the heating medium flow rate adjusting valve to achieve the effect of increasing the temperature inside the reactor until the control temperature is not smaller than the minimum value of the preset temperature range.

Of course, the preset temperature range may be arbitrarily set, for example, the preset temperature range may be set to [99.99 ℃,100.01 ℃ ]. The preset temperature range may also be set to other temperature ranges. The embodiments of the present application do not limit this.

Therefore, the flexibility of controlling the temperature of the reactor can be improved, the average temperature of the upper inner ring, the average temperature of the whole inner ring of the reactor and the average temperature of the lower inner ring of the reactor can be arbitrarily selected as the average temperature of the inner ring of the reactor, and the temperature of the reactor can be controlled according to the average temperature of the inner ring representing the average temperature of the whole inner ring or the local average temperature of the reactor. In this way, the accuracy of temperature control of the reactor can be improved.

In one possible approach, the Control temperature may be determined based on a Distributed Control System (DCS) platform, and controlled based on the DCS platform.

For example, in the case where the average temperature of all the inner detection rings, the average temperature of the plurality of inner detection rings installed in the upper layer of the reactor among the inner detection rings, and the average temperature of the plurality of inner detection rings installed in the lower layer of the reactor among the inner detection rings are respectively selected, and the upper inner ring average temperature T1 of the reactor, the whole inner ring average temperature T2 of the reactor, and the lower inner ring average temperature T3 of the reactor are calculated, a temperature value can be selected from any one of the upper-layer inner-ring average temperature T1 of the reactor, the whole inner-ring average temperature T2 of the reactor and the lower-layer inner-ring average temperature T3 of the reactor as the inner-ring average temperature of the reactor, the selected inner-ring average temperature of the reactor is input to an inner-ring average temperature controller installed in the reactor, the inner-loop average temperature controller may convert the input inner-loop average temperature into a heating medium flow rate value corresponding to the inner-loop average temperature.

For another example, when the plurality of cyclic reactant temperature detection devices determine a plurality of cyclic reactant temperatures X, one cyclic reactant temperature value X may be selected from the plurality of cyclic reactant temperatures X, and the selected cyclic reactant temperature value X of the reactor may be input to a cyclic reactant temperature controller installed in the reactor, and the cyclic reactant temperature controller may convert the input cyclic reactant temperature value X into a heating medium flow rate value corresponding to the cyclic reactant temperature value X.

Then, the heating medium flow value corresponding to the inner ring average temperature obtained in the above step is compared with the heating medium flow value corresponding to the circulating reactant temperature value X, and the smaller one of the heating medium flow value corresponding to the inner ring average temperature and the heating medium flow value corresponding to the circulating reactant temperature value X is selected. Then, the selected smaller heating medium flow value is input into a heating medium flow controller installed in the reactor to determine whether the flow of the heating medium in the reactor is too large or too small, so as to perform corresponding flow increasing operation or flow decreasing operation, thereby achieving the purpose of controlling the temperature in the reactor.

Specifically, the smaller heating medium flow rate value selected in the above step may be input to a heating medium flow rate controller installed in the reactor, and the heating medium flow rates corresponding to the maximum value and the minimum value of the preset temperature range may be used as two comparison values of the heating medium flow rate controller.

For example, two heating medium flow controllers may be provided in the reactor, and the heating medium flow rates corresponding to the maximum value and the minimum value of the preset temperature range may be respectively used as a comparison value of the two heating medium flow controllers. For example, if the heating medium flow controller a and the heating medium flow controller B are provided, the heating medium flow rate corresponding to the maximum value of the preset temperature range may be used as the reference value of the heating medium flow controller a, and the heating medium flow rate corresponding to the minimum value of the preset temperature range may be used as the reference value of the heating medium flow controller B.

For example, in the case where the control temperature is input to the heating medium flow controller a, the heating medium flow controller a compares the smaller heating medium flow value selected in the above step with the reference value of the heating medium flow controller a, that is, compares the smaller heating medium flow value selected in the above step with the heating medium flow corresponding to the maximum value of the preset temperature range, and if the smaller heating medium flow value selected in the above step is greater than the heating medium flow corresponding to the maximum value of the preset temperature range, the heating medium flow controller a sends a flow reduction signal to the heating medium flow regulating valve in the reactor to reduce the flow of the heating medium flow regulating valve in the reactor to reduce the temperature inside the reactor. Of course, the heating medium flow controller a may also directly send the flow value to be adjusted to the heating medium flow control valve, and the heating medium flow control valve may directly adjust the flow to the flow value to be adjusted.

For another example, in the case that the control temperature is input to the heating medium flow controller B, the heating medium flow controller B compares the smaller heating medium flow value selected in the above step with the reference value of the heating medium flow controller B, that is, compares the smaller heating medium flow value selected in the above step with the heating medium flow corresponding to the minimum value of the preset temperature range, and if the smaller heating medium flow value selected in the above step is less than or equal to the heating medium flow corresponding to the minimum value of the preset temperature range, the heating medium flow controller a sends a flow increasing signal to the heating medium flow regulating valve in the reactor to increase the flow of the heating medium flow regulating valve in the reactor to increase the temperature inside the reactor. Of course, the heating medium flow controller a may also directly send the flow value to be adjusted to the heating medium flow control valve, and the heating medium flow control valve may directly adjust the flow to the flow value to be adjusted.

In this way, the flexibility of controlling the temperature of the reactor can be increased.

The following describes apparatuses, devices, computer readable storage media, etc. for implementing the reactor temperature control method provided in the present application, and specific implementation processes and technical effects thereof are referred to above, and will not be described again below.

Fig. 8 is a schematic structural diagram of a reactor temperature control device provided in an embodiment of the present application, and referring to fig. 8, the device includes:

the calculating module 201 is configured to calculate an inner ring average temperature of the reactor according to the inner ring temperatures of the reactor collected by the plurality of inner ring temperature detecting devices.

A first determination module 202 for determining at least one recycled reactant temperature based on at least one recycled reactant temperature detection device.

A second determination model 203 for determining a control temperature based on the average temperature of the inner annulus of the reactor and the temperature of the recycled reactants.

And the adjusting model 204 is used for adjusting the inner ring temperature of the reactor according to the control temperature and the preset temperature range.

The above-mentioned apparatus is used for executing the method provided by the foregoing embodiment, and the implementation principle and technical effect are similar, which are not described herein again.

These above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microcontrollers, or one or more Field Programmable Gate Arrays (FPGAs), etc. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Fig. 9 is a schematic structural diagram of a computer device according to an embodiment of the present application. Referring to fig. 9, the computer apparatus includes: a memory 301 and a processor 302, wherein the memory 301 stores a computer program operable on the processor 302, and the processor 302 executes the computer program to implement the steps of any of the above-mentioned method embodiments.

The embodiments of the present application also provide a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the steps in the above-mentioned method embodiments can be implemented.

Optionally, the present application also provides a program product, such as a computer readable storage medium, comprising a program which, when executed by a processor, is adapted to perform any of the above-described embodiments of the reactor temperature control method.

In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) or a processor (processor) to execute some steps of the methods according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A method of reactor temperature control, the method comprising:

calculating the average temperature of the inner ring of the reactor according to the temperature of the inner ring of the reactor, which is acquired by a plurality of inner ring temperature detection devices, wherein each inner ring temperature detection device is respectively arranged in the reactor;

determining at least one circulating reactant temperature based on at least one circulating reactant temperature sensing device mounted at a circulating reactant inlet in the reactor;

determining a control temperature according to the average temperature of the inner ring of the reactor and the temperature of the circulating reactant;

and adjusting the temperature of the inner ring of the reactor according to the control temperature and the preset temperature range.

2. The reactor temperature control method according to claim 1, wherein a plurality of inner detection rings are arranged in the reactor, each inner temperature detection device is respectively mounted on each inner detection ring, and each inner detection ring is respectively used for detecting the temperature of different positions in the reactor;

the calculating the average temperature of the inner ring of the reactor according to the inner ring temperature of the reactor collected by the plurality of inner ring temperature detection devices comprises:

calculating the average temperature corresponding to each inner detection ring according to the temperature collected by each inner ring temperature detection device arranged on each inner detection ring;

and calculating the average temperature of the inner ring of the reactor according to the average temperature corresponding to each inner detection ring.

3. The method of claim 2, wherein said calculating an average temperature of an inner ring of said reactor based on an average temperature corresponding to each of said inner sensing rings comprises:

respectively selecting the average temperature of all the inner detection rings, the average temperature of a plurality of inner detection rings arranged on the upper layer of the reactor in each inner detection ring and the average temperature of a plurality of inner detection rings arranged on the lower layer of the reactor in each inner detection ring, and calculating the integral inner ring average temperature of the reactor, the upper layer inner ring average temperature of the reactor and the lower layer inner ring average temperature of the reactor;

and obtaining the inner ring average temperature of the reactor according to the integral inner ring average temperature, the upper layer inner ring average temperature and the lower layer inner ring average temperature.

4. The method for controlling the temperature of the reactor according to claim 1, wherein a plurality of outer detection rings are further arranged on the inner wall of the reactor, and each outer detection ring is used for detecting the temperature of different positions of the inner wall of the reactor;

the method further comprises the following steps:

calculating the average temperature of the outer detection rings according to the outer ring temperature of the reactor collected by a plurality of outer ring temperature detection devices;

comparing the outer ring temperature of the reactor acquired by each outer ring temperature detection device with the average temperature of the plurality of outer detection rings, if a first temperature error between the outer ring temperature of the reactor acquired by any one of the outer ring temperature detection devices and the average temperature of the plurality of outer detection rings is greater than a first temperature error threshold, determining that the outer ring temperature of the reactor is abnormal, and outputting a first alarm signal, wherein the first alarm signal is used for indicating that the outer ring temperature of the reactor acquired by each outer ring temperature detection device in each outer detection ring is abnormal.

5. The reactor temperature control method of claim 1, wherein said adjusting the temperature of the inner ring of the reactor based on the control temperature and the preset temperature range comprises:

if the control temperature is larger than the preset temperature range, reducing the flow of a heating medium flow regulating valve in the reactor to reduce the temperature in the reactor;

and if the control temperature is less than or equal to the preset temperature range, increasing the flow of the heating medium flow regulating valve so as to improve the temperature in the reactor.

6. The reactor temperature control method of any one of claims 1-5, further comprising:

determining a second temperature error between the inner ring temperature of the reactor collected by each inner ring temperature detection device in each inner detection ring in the reactor and a preset temperature according to the inner ring temperature of the reactor collected by each inner ring temperature detection device;

and if the second temperature error is larger than a second temperature error threshold value, determining that the temperature of the inner ring of the reactor is abnormal, and outputting a second alarm signal, wherein the second alarm signal is used for indicating that the temperature of the inner ring of the reactor, which is acquired by any one of the inner ring temperature detection devices, is abnormal.

7. The reactor temperature control method of any one of claims 1-5, further comprising:

determining the inner ring temperature change rate of the inner ring temperature of the reactor collected by each inner ring temperature detection device;

if the inner ring temperature change rate is larger than an inner ring temperature change rate threshold value, determining that the inner ring temperature change rate is abnormal, and outputting a third alarm signal, wherein the third alarm signal is used for indicating that the inner ring temperature change rate of the inner ring temperature of the reactor collected by each inner ring temperature detection device is abnormal;

the method further comprises the following steps:

determining the outer ring temperature change rate of the outer ring temperature of the reactor collected by each outer ring temperature detection device;

and if the outer ring temperature change rate is greater than an outer ring temperature change rate threshold value, determining that the outer ring temperature change rate is abnormal, and outputting a fourth alarm signal, wherein the fourth alarm signal is used for indicating that the outer ring temperature change rate of the outer ring temperature of the reactor collected by each outer ring temperature detection device is abnormal.

8. A reactor temperature control apparatus, comprising:

the calculation module is used for calculating the average temperature of the inner ring of the reactor according to the inner ring temperatures of the reactor collected by the inner ring temperature detection devices;

a first determination module for determining at least one circulating reactant temperature based on at least one circulating reactant temperature detection device;

a second determination model for determining a control temperature based on the average temperature of the inner annulus of the reactor and the temperature of the circulating reactant;

and the adjusting model is used for adjusting the inner ring temperature of the reactor according to the control temperature and the preset temperature range.

9. A computer device, comprising: memory in which a computer program is stored which is executable on the processor, and a processor which, when executing the computer program, carries out the steps of the method according to any one of the preceding claims 1 to 7.

10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method of one of claims 1 to 7.

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