A system for remotely monitoring sulfuric acid distribution and its operation method

Abstract

The present invention provides a system for remotely monitoring and controlling the equal distribution of sulfuric acid, including an industrial control device, the industrial control device including a negative pressure transmitter, a processor and a negative pressure pump, the negative pressure transmitter and the negative pressure pump are both connected to an acid distributor, the processor is electrically connected to the negative pressure transmitter and the negative pressure pump respectively, the processor receives vacuum data in the acid distributor transmitted by the negative pressure transmitter, and the processor can control the start and stop of the negative pressure pump. The present invention eliminates the influence of fluctuations in production conditions and process conditions and the air pressure in a dry absorption tower on the equal distribution of sulfuric acid through the industrial control device provided, the operation is simple and practical, and the yield of sulfuric acid can be greatly improved, thereby greatly improving the production efficiency of sulfuric acid.

Description

Technical Field

[0001] The present invention relates to the technical field of sulfuric acid production in the sulfuric acid industry, and in particular to a system for remotely monitoring and controlling sulfuric acid distribution and an operating method thereof. Background Art

[0002] The acid separator is a key environmental protection equipment in the sulfuric acid industry for removing moisture from SO2 gas and absorbing SO3 gas to prepare sulfuric acid.

[0003] The Chinese invention patent with application number 201610577425.8 discloses a method for uniformly distributing sulfuric acid and an acid distributor thereof. By designing an acid distributor with an internal space that is not filled and forms a negative pressure, a steady flow and uniform distribution of the acid liquid is achieved. However, with the fluctuation of production conditions and process conditions and the influence of the air pressure in the dry absorption tower, the negative pressure steady flow and acid distribution effects of the acid distributor will be affected and disturbed, that is, the acid distributor will not work properly. The abnormal operation of the acid distributor will lead to poor drying effect of moisture in SO2 gas, low SO3 absorption efficiency, excessive exhaust emissions, severe corrosion of gas transmission pipelines and circulating acid pipelines, demisters, pump bodies and fans, etc., causing environmental pollution and even serious safety accidents.

[0004] On the other hand, the acid separator works in the confined space of the tower body. So far, the industry can only indirectly judge whether its working condition is normal and its efficiency is normal through external research. Once a problem is found, it can only be shut down for maintenance, which will seriously affect the efficiency of the entire sulfuric acid production. Generally, the maintenance interval of sulfuric acid enterprises is relatively long. If the acid separator is in an unstable state for a long time, it will seriously affect the emission and environmental stability of sulfuric acid enterprises, and there will be considerable safety risks. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a system for remotely monitoring and controlling the equal distribution of sulfuric acid. The system can automatically control the start and stop of a negative pressure pump through an industrial control device, and automatically adjust the vacuum degree in an acid distributor within a certain range to eliminate the influence of fluctuations in production conditions and process conditions and the air pressure in a dry absorption tower on the equal distribution of sulfuric acid. The system is simple to operate and has strong practicality, and can greatly improve the yield of sulfuric acid.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A system for remotely monitoring and controlling the equal distribution of sulfuric acid comprises an industrial control device; the industrial control device comprises a negative pressure transmitter, a processor and a negative pressure pump, the negative pressure transmitter and the negative pressure pump are both connected to an acid distributor, the processor is electrically connected to the negative pressure transmitter and the negative pressure pump respectively, the processor receives vacuum degree data in the acid distributor transmitted by the negative pressure transmitter, and the processor can control the start and stop of the negative pressure pump.

[0008] Optionally, it also includes a negative pressure communication equalization component, which includes a main pipe and a connecting pipe. The main pipe is connected to the pre-distribution pipeline of the acid distributor, and the main pipe is connected through the connecting pipe.

[0009] Optionally, the negative pressure transmitter and the negative pressure pump are connected to the acid distributor by connecting to the main pipe or the pre-distribution pipeline.

[0010] Optionally, it also includes a transceiver device, which includes a data transmitter and a data receiver, and the transceiver device is electrically connected to the processor. The transceiver device can interact with a mobile phone terminal or a computer terminal through signals, and the mobile phone terminal or the computer terminal can display the vacuum degree in the acid separator through the signal. At the same time, the mobile phone terminal or the computer terminal can control the processor through the signal to control the start and stop of the negative pressure pump.

[0011] Optionally, the transceiver updates the signal every 30s-60s.

[0012] Optionally, one end of the negative pressure pump is connected to the bottom of the tower body.

[0013] Optionally, the deviation between the actual vacuum degree in the acid separator and the vacuum degree measured by an external vacuum device is less than or equal to 0.2 Kpa, and the processor can be set to automatically control the start and stop of the negative pressure pump within the range of -26 Kpa to -3.0 Kpa.

[0014] A method for operating a system for remotely monitoring sulfuric acid distribution:

[0015] Step 1: The negative pressure transmitter obtains vacuum degree data in the acid distributor;

[0016] Step 2: The processor determines whether the vacuum degree data obtained in step 1 is within a reasonable range;

[0017] Step 3: The processor controls the start and stop of the negative pressure pump according to the judgment result obtained in step 2.

[0018] Optionally, the negative pressure transmitter in step 1 obtains the vacuum degree data of the acid distributor by being connected to a negative pressure equalization component provided on the acid distributor.

[0019] Optionally, step 4: the processor sends the vacuum degree data obtained in step 1 to a mobile phone terminal or a computer terminal through a signal via a data transmitter;

[0020] Step 5: The mobile phone terminal or the computer terminal obtains the signal of step 4 and interprets it into vacuum degree data in the acid distributor and displays it;

[0021] Step 6: The operator of the mobile terminal (5) or the computer terminal (4) can obtain and view the vacuum degree data displayed in step 5 in real time;

[0022] Step 7: The operator of the mobile phone terminal or the computer terminal can use the mobile phone terminal or the computer terminal to send a signal to control the start and stop of the negative pressure pump;

[0023] Step 8: The data receiver receives the signal of step 7 and transmits it to the processor;

[0024] Step 9: The processor processes the signal obtained in step 8 and converts it into an execution signal to control the start and stop of the negative pressure pump.

[0025] The technical solution of the embodiment of the present invention has at least the following advantages and beneficial effects:

[0026] The present invention is connected with the acid distributor through the industrial control device, and the vacuum degree in the acid distributor is visually monitored in real time, and the vacuum degree in the acid distributor is automatically adjusted within a certain range to eliminate the influence of fluctuations in production conditions and process conditions and the air pressure in the dry absorption tower on the equal distribution of sulfuric acid. The operation is simple and practical, and the yield of sulfuric acid can be greatly improved, thereby greatly improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 is a flow chart of the operating method of the present invention;

[0030] Icons: 01-tower body, 02-acid distributor, 03-connecting pipe, 04-pre-distribution pipeline, 1-industrial control device, 2-negative pressure collection pipeline, 3-negative pressure adjustment pipeline, 4-computer terminal, 5-mobile terminal, 6-operable terminal, 7-negative pressure connecting equalization component, 701-main pipe, 702-connecting pipe, 8-negative pressure pump. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example 1

[0037] like Figure 1As shown, a system for remotely monitoring and controlling sulfuric acid distribution includes an industrial control device 1, which includes a negative pressure transmitter, a processor and a negative pressure pump 8. The negative pressure transmitter is connected to an acid distributor 02 arranged in a tower body 01 through a negative pressure collection pipeline 2, and the negative pressure pump 8 is connected to the acid distributor 02 through a negative pressure adjustment pipeline 3. The processor is electrically connected to the negative pressure transmitter and the negative pressure pump 8 respectively, and the processor receives vacuum data in the acid distributor 02 transmitted by the negative pressure transmitter. The processor can control the start and stop of the negative pressure pump 8.

[0038] It also includes a negative pressure connection and equalization component 7, which includes a main pipe 701 and a connecting pipe 702. The main pipe 701 is connected to the pre-distribution pipeline 04 of the acid distributor 02. At the same time, the pre-distribution pipelines 04 are connected through a connecting pipe 03, and the main pipe 701 is connected through a connecting pipe 702. The negative pressure connection and equalization component 7 can effectively and quickly equalize the negative pressure in the acid distributor 02, and the negative pressure pump 8 can adjust and control the effect better and faster, so that the fluctuation of the production conditions or production process can be quickly adjusted, and thus will not affect the production of sulfuric acid.

[0039] The negative pressure transmitter and the negative pressure pump 8 are connected to the acid distributor 02 by connecting to the main pipe 701 or the pre-distribution pipeline 04. Connecting the negative pressure transmitter to the main pipe 701 or the pre-distribution pipeline 04 can obtain vacuum data faster and more timely. Connecting the negative pressure pump 8 to the main pipe 701 or the pre-distribution pipeline 04 can enhance the adjustment capability.

[0040] It also includes a transceiver, which includes a data transmitter and a data receiver. The transceiver is electrically connected to the processor. The transceiver can interact with the operable terminal 6, that is, a mobile phone terminal 5 or a computer terminal 4. The mobile phone terminal 5 or the computer terminal 4 can display the vacuum degree in the acid separator 02 through the signal. At the same time, the mobile phone terminal 5 or the computer terminal 4 can control the processor through the signal to control the start and stop of the negative pressure pump 8. The transceiver can be remotely controlled when needed to expand the control range.

[0041] The transceiver updates the signal every 30s-60s.

[0042] One end of the negative pressure pump 8 is connected to the bottom of the tower body 01, and the medium negative pressure gas regulated by the negative pressure pump 8 returns to the bottom of the tower in a closed manner to avoid pollution and waste.

[0043] The deviation between the actual vacuum degree in the acid separator 02 and the vacuum degree measured by the external vacuum device is less than or equal to 0.2Kpa, and the processor can set the start and stop of the automatic control negative pressure pump 8 within the range of -26Kpa to -3.0Kpa.

[0044] like Figure 2 As shown, an operation method of a system for remotely monitoring and controlling sulfuric acid distribution:

[0045] Step 1: The negative pressure transmitter obtains the vacuum degree data in the acid distributor 02;

[0046] Step 2: The processor determines whether the vacuum degree data obtained in step 1 is within a reasonable range;

[0047] Step 3: The processor controls the start and stop of the negative pressure pump 8 according to the judgment result obtained in step 2.

[0048] Step 4: The processor sends the vacuum degree data obtained in step 1 to the mobile terminal 5 or the computer terminal 4 via a signal through a data transmitter;

[0049] As a preferred solution, in step 1, the negative pressure transmitter obtains the vacuum degree data of the acid distributor 02 by being connected to the negative pressure equalization component 7 provided on the acid distributor 02 .

[0050] Step 5: The mobile terminal 5 or the computer terminal 4 obtains the signal of step 4 and interprets it into vacuum degree data in the acid distributor 02 and displays it;

[0051] Step 6: The operator of the mobile terminal (5) or the computer terminal (4) can obtain and view the vacuum degree data displayed in step 5 in real time;

[0052] Step 7: The operator of the mobile terminal 5 or the computer terminal 4 can use the mobile terminal 5 or the computer terminal 4 to send a signal to control the start and stop of the negative pressure pump 8;

[0053] Step 8: The data receiver receives the signal of step 7 and transmits it to the processor;

[0054] Step 9: The processor processes the signal obtained in step 8 and converts it into an execution signal to control the start and stop of the negative pressure pump 8.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A system for remotely monitoring and controlling the equal distribution of sulfuric acid, characterized in that: The industrial control device (1) comprises a negative pressure transmitter, a processor and a negative pressure pump (8), the negative pressure transmitter and the negative pressure pump (8) are both connected to an acid distributor (02), the processor is electrically connected to the negative pressure transmitter and the negative pressure pump (8) respectively, the processor is capable of receiving vacuum degree data in the acid distributor (02) transmitted by the negative pressure transmitter, and the processor is capable of controlling the start and stop of the negative pressure pump (8); It also includes a negative pressure communication and equalization component (7), the negative pressure communication and equalization component (7) includes a main pipe (701) and a connecting pipe (702), the main pipe (701) is connected to the pre-distribution pipeline (04) of the acid distributor (02), and the main pipe (701) is connected through the connecting pipe (702); The negative pressure transmitter and the negative pressure pump (8) are connected to the acid distributor (02) by connecting to the main pipe (701) or the pre-distribution pipeline (04); The invention also comprises a transceiver device, wherein the transceiver device comprises a data transmitter and a data receiver, wherein the transceiver device is electrically connected to the processor, and wherein the transceiver device is capable of performing signal interaction with a mobile phone terminal (5) or a computer terminal (4), wherein the mobile phone terminal (5) or the computer terminal (4) is capable of displaying vacuum degree data in the acid separator (02) through the signal, and wherein the mobile phone terminal (5) or the computer terminal (4) is capable of controlling the processor through the signal to control the start and stop of the negative pressure pump (8).

2. The system for remotely monitoring and controlling sulfuric acid distribution according to claim 1, characterized in that: The transceiver updates the signal every 30s-60s.

3. The system for remotely monitoring and controlling sulfuric acid distribution according to claim 1, characterized in that: One end of the negative pressure pump (8) is in communication with the bottom of the tower body (01).

4. The system for remotely monitoring and controlling sulfuric acid distribution according to claim 1, characterized in that: The deviation between the actual vacuum degree in the acid distributor (02) and the vacuum degree measured by an external vacuum device is less than or equal to 0.2 Kpa, and the processor can be set to automatically control the start and stop of the negative pressure pump (8) within a range of -26 Kpa to -3.0 Kpa.

5. A method for operating a system for remotely monitoring and controlling sulfuric acid distribution according to any one of claims 1 to 4, characterized in that: Step 1: The negative pressure transmitter obtains vacuum degree data in the acid distributor (02); Step 2: The processor determines whether the vacuum degree data obtained in step 1 is within a preset vacuum degree range; Step 3: The processor controls the start and stop of the negative pressure pump (8) according to the judgment result obtained in step 2.

6. The method for operating the system for remotely monitoring and controlling sulfuric acid distribution according to claim 5, characterized in that: In the step 1, the negative pressure transmitter obtains the vacuum degree data of the acid distributor (02) by being connected to the negative pressure equalization component (7) provided on the acid distributor (02).

7. The method for operating the system for remotely monitoring and controlling sulfuric acid distribution according to claim 6, characterized in that: Step 4: the processor transmits the vacuum degree data obtained in step 1 to a mobile phone terminal (5) or a computer terminal (4) via a data transmitter through a signal; Step 5: The mobile phone terminal (5) or the computer terminal (4) obtains the signal of step 4 and interprets it into vacuum degree data in the acid separator (02) and displays it; Step 6: The operator of the mobile terminal (5) or the computer terminal (4) can obtain and view the vacuum degree data displayed in step 5 in real time; Step 7: The operator of the mobile phone terminal (5) or the computer terminal (4) can use the mobile phone terminal (5) or the computer terminal (4) to send a signal to control the start and stop of the negative pressure pump (8); Step 8: The data receiver receives the signal of step 7 and transmits it to the processor; Step 9: The processor processes the signal obtained in step 8 and converts it into an execution signal to control the start and stop of the negative pressure pump (8).

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