Acid storage tank emergency treatment and discharge system and treatment method

Abstract

The invention relates to the technical field of acid storage equipment, and discloses an acid storage tank emergency treatment and discharge system and a treatment method. The acid storage tank emergency treatment and discharge system comprises an acid storage tank, an accident acid storage tank, an acid mist absorber, a neutralization water tank, an accident acid discharge pump, a radar liquid level meter and an ultrasonic liquid level meter, the radar liquid level meter and the ultrasonic liquid level meter are fixedly installed on the acid storage tank, and the acid storage tank and the accident storage tank are both communicated with the neutralization water tank through pipelines. The acid storage tank and the accident acid storage tank are simultaneously communicated with the acid mist absorber, the acid mist absorber is communicated with the neutralization water tank, the acid storage tank is communicated with the accident acid storage tank through the accident acid unloading pipeline, the accident acid unloading pump is mounted on the accident acid unloading pipeline, and the device has the advantages that the response speed is increased, and the accident response time is shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of acid storage equipment, and particularly to an emergency treatment and discharge system and method for an acid storage tank. Background Art

[0002] At present, when a primary valve leakage or a body leakage occurs in an in-plant acid storage tank and pipeline, it is necessary to timely empty the acid liquid in the acid storage tank. When emptying, not only will acid mist be generated, endangering human safety and wasting a large amount of acid liquid, but also a large amount of alkali liquid will be wasted for neutralization.

[0003] Therefore, an emergency treatment and discharge system and method for an acid storage tank are provided to solve the above problems. Summary of the Invention

[0004] The main object of the present invention is to solve the problem that when a primary valve leakage or a body leakage occurs in an acid storage tank and pipeline in the prior art, it is necessary to timely empty the acid liquid in the acid storage tank. When emptying, not only will acid mist be generated, endangering human safety and wasting a large amount of acid liquid, but also a large amount of alkali liquid will be wasted for neutralization.

[0005] In a first aspect of the present invention, an emergency treatment and discharge system for an acid storage tank is provided. The emergency treatment and discharge system for an acid storage tank includes:

[0006] A mobile platform, on the upper surface of which a height adjustment mechanism is fixedly installed. The top end of the height adjustment mechanism is fixedly provided with a heating plate. On the side surface of the heating plate, a first laser ranging mechanism is fixedly provided. On the upper surface of the heating plate, a shielding block is provided. On one side of the mobile platform close to the tab roller, a second laser ranging mechanism is fixedly installed.

[0007] An acid storage tank, an accident acid storage tank, an acid mist absorber, a neutralization pool, an accident acid unloading pump, a radar level gauge, and an ultrasonic level gauge. The radar level gauge and the ultrasonic level gauge are fixedly installed on the acid storage tank. The acid storage tank and the accident storage tank are both connected to the neutralization pool through pipelines. The acid storage tank and the accident acid storage tank are simultaneously connected to the acid mist absorber. The acid mist absorber is connected to the neutralization pool. The acid storage tank is connected to the accident acid storage tank through an accident acid unloading pipeline. The accident acid unloading pump is installed on the accident acid unloading pipeline. It further includes an acid feeding pipeline, which includes three ports. The first port of the acid feeding pipeline is connected to the accident acid storage tank. The second port of the acid feeding pipeline is connected to the acid storage tank. The third port of the acid feeding pipeline is connected to an acid transporting tank truck.

[0008] Further, it further includes a cleaning pipeline, the cleaning pipeline includes a first water inlet valve and a second water inlet valve. One end of the first water inlet valve is communicated with the acid storage tank, the other end of the first water inlet valve is communicated with industrial water, one end of the second water inlet valve is communicated with the accident acid storage tank, and the other end of the second water inlet valve is communicated with industrial water.

[0009] Further, an accident discharge valve and an accident acid inlet valve are further arranged on the accident acid discharge pipeline. One end of the accident discharge valve is communicated with the acid storage tank through a pipeline, the other end of the accident discharge valve is communicated with the accident acid discharge pump through a pipeline, one end of the accident acid inlet valve is communicated with the accident acid discharge pump through a pipeline, and the other end of the accident acid inlet valve is communicated with the accident acid storage tank through a pipeline.

[0010] Further, it further includes a first acid mist discharge valve and a second acid mist discharge valve. One end of the first acid mist discharge valve is communicated with the acid storage tank, the other end of the first acid mist discharge valve is communicated with the acid mist absorber, one end of the second acid mist discharge valve is communicated with the accident acid storage tank, and the other end of the second acid mist discharge valve is communicated with the acid mist absorber.

[0011] Further, it further includes a first acid discharge valve and a second acid discharge valve. One end of the first acid discharge valve is communicated with the acid storage tank, the other end of the first acid discharge valve is communicated with the neutralization water tank, one end of the second acid discharge valve is communicated with the accident acid storage tank, and the other end of the second acid discharge valve is communicated with the neutralization water tank.

[0012] Further, the acid feeding pipeline includes a tank truck acid inlet valve, an acid feeding main valve, a storage tank acid inlet valve, an acid inlet valve, an acid outlet valve and an acid discharge pump. One end of the tank truck acid inlet valve is communicated with the acid transporting tank truck, the other end of the tank truck acid inlet valve is simultaneously communicated with the acid feeding main valve and the storage tank acid inlet valve, the acid feeding main valve is communicated with the acid discharge pump, the acid discharge pump is communicated with the acid inlet valve, the acid inlet valve is communicated with the acid storage tank, the storage tank acid inlet valve is communicated with the acid outlet valve, and the acid outlet valve is communicated with the accident acid storage tank.

[0013] In a second aspect of the present invention, an emergency treatment method for an acid storage tank is provided, which is used for the acid storage tank emergency treatment and discharge system as described above. The emergency treatment method for the acid storage tank includes:

[0014] S1. Obtain the first liquid level data information measured by the radar liquid level gauge, obtain the second liquid level data information measured by the ultrasonic liquid level gauge, and obtain the initial liquid level information;

[0015] S2. Determine whether the difference between the first liquid level data information and the second liquid level data information is greater than 5 mm. If so, generate a liquid level jump alarm message; if not, proceed to the liquid level drop determination.

[0016] S3. Proceed to the liquid level drop determination. Determine whether either the difference between the first liquid level data information and the initial liquid level data information is greater than 20 mm or the difference between the second liquid level data information and the initial liquid level data information is greater than 20 mm is satisfied. If so, generate an acid storage tank accident alarm message. If not, repeat step S2 after a first preset time duration.

[0017] S4. Generate an accident discharge valve opening signal, an acid unloading pump opening signal, and an accident acid inlet pump opening signal according to the acid storage tank accident alarm message, for storing the acid liquid in the acid storage tank into the accident acid storage tank.

[0018] S5. Obtain the first liquid level data and the second liquid level data, and determine whether both the first liquid level data and the second liquid level data show that the liquid level is less than 1 mm. If so, generate an accident discharge valve closing signal, an acid unloading pump closing signal, and an accident acid inlet pump closing signal.

[0019] S6. Obtain the accident handling completion information, generate an acid outlet valve opening signal, a storage tank acid inlet valve opening signal, an acid inlet main valve opening signal, and an acid inlet valve opening signal. When the storage tank acid inlet valve, the acid inlet main valve, and the acid inlet valve are opened, generate an acid unloading pump opening signal, for redirecting the acid liquid in the accident acid storage tank back into the acid storage tank.

[0020] Furthermore, it also includes:

[0021] Generate a first water inlet valve opening signal and a second water inlet valve opening signal for using industrial water to clean the acid storage tank and the accident acid storage tank.

[0022] Generate a first acid discharge valve opening signal and a second acid discharge valve opening signal for discharging the waste liquid in the acid storage tank and the accident acid storage tank into the neutralization tank.

[0023] The present invention provides an emergency treatment and discharge system and method for an acid storage tank, which can prevent leakage and diffusion. When an accident such as leakage occurs in the acid storage tank, it can quickly divert the acid liquid to a designated discharge area or collection device, avoiding the spread of the acid liquid on the ground and reducing the direct harm to the surrounding environment and personnel. When local leakage or other problems occur in the tank body, the emergency discharge system can discharge the acid liquid in the tank, reducing the possibility of further rupture or damage, and helping to protect the tank body and related equipment in the vicinity. It improves the response speed. The system usually has the function of quick start and discharge, and can respond immediately at the first time of the accident. Compared with manual handling, it greatly shortens the time to respond to the accident and improves the emergency response efficiency. Description of the Drawings

[0024] Figure 1 Schematic diagram of the emergency treatment and discharge system for the acid storage tank provided by the present invention;

[0025] Figure 2 Flow chart of the emergency treatment and discharge method for the acid storage tank provided by the present invention. Detailed implementation manners

[0026] An embodiment of the present invention provides an emergency treatment and discharge system for an acid storage tank, which includes an acid storage tank, an accident acid storage tank, an acid mist absorber, a neutralization tank, an accident acid discharge pump, a radar level gauge, and an ultrasonic level gauge. The radar level gauge and the ultrasonic level gauge are fixedly installed on the acid storage tank. Both the acid storage tank and the accident storage tank are connected to the neutralization tank through pipelines. The acid storage tank and the accident acid storage tank are simultaneously connected to the acid mist absorber. The acid mist absorber is connected to the neutralization tank. The acid storage tank is connected to the accident acid storage tank through an accident acid discharge pipeline. The accident acid discharge pump is installed on the accident acid discharge pipeline. The system further includes an acid feeding pipeline, which has three ports. The first port of the acid feeding pipeline is connected to the accident acid storage tank, the second port is connected to the acid storage tank, and the third port is connected to an acid transport tank truck. The main purpose of the present invention is to solve the problems in the prior art that when a primary valve leakage or a body leakage occurs in the acid storage tank and the pipeline, the acid liquid in the acid storage tank needs to be emptied in time. During the emptying process, not only acid mist will be generated, endangering human safety and wasting a large amount of acid liquid, but also a large amount of alkali liquid will be wasted for neutralization.

[0027] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments described herein can be implemented in an order different from that shown or described herein. In addition, the terms "comprising" or "having" and any variation thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these process, method, product, or device.

[0028] For easy understanding, the specific process of the embodiment of the present invention is described below with reference to the attached Figure 1-2 drawings. The embodiment of the ear tab pre-rolling heating device provided by the present invention includes:

[0029] Acid storage tank 1, accident acid storage tank 2, acid mist absorber 18, neutralization water tank 19, accident acid discharge pump 15, radar level gauge 7 and ultrasonic level gauge 8. The radar level gauge 7 and ultrasonic level gauge 8 are fixedly installed on the acid storage tank 1. The acid storage tank 1 and the accident storage tank are both connected to the neutralization water tank through pipelines. The acid storage tank and the accident acid storage tank are simultaneously connected to the acid mist absorber. The acid mist absorber is connected to the neutralization water tank. The acid storage tank 1 is connected to the accident acid storage tank 2 through an accident acid discharge pipeline. The accident acid discharge pump 15 is installed on the accident acid discharge pipeline. It also includes an acid feeding pipeline, which has three ports. The first port of the acid feeding pipeline is connected to the accident acid storage tank 2, the second port of the acid feeding pipeline is connected to the acid storage tank 1, and the third port of the acid feeding pipeline is connected to the acid transport tank truck. The radar level gauge is equipped with a purging device, measures the liquid level reflection time by emitting microwave pulses, calculates the liquid level height, and is applicable to hydrochloric acid solutions; the purging device is used to clean the antenna to prevent the attachment of hydrochloric acid from affecting the measurement. The ultrasonic level gauge is enclosed, measures the liquid level through the ultrasonic pulse reflection time, and is applicable to the measurement of corrosive liquids. The enclosed type is to protect the sensor from damage and interference.

[0030] It also includes a cleaning pipeline, which includes a first water inlet valve 3 and a second water inlet valve 4. One end of the first water inlet valve 3 is connected to the acid storage tank 1, and the other end of the first water inlet valve 3 is connected to industrial water. One end of the second water inlet valve 4 is connected to the accident acid storage tank 2, and the other end of the second water inlet valve 4 is connected to industrial water.

[0031] An accident discharge valve 5 and an accident acid inlet valve 6 are also provided on the accident acid discharge pipeline. One end of the accident discharge valve 5 is connected to the acid storage tank 1 through a pipeline, and the other end of the accident discharge valve 5 is connected to the accident acid discharge pump 15 through a pipeline. One end of the accident acid inlet valve 6 is connected to the accident acid discharge pump 15 through a pipeline, and the other end of the accident acid inlet valve 6 is connected to the accident acid storage tank 2 through a pipeline.

[0032] It also includes a first acid mist discharge valve and a second acid mist discharge valve. One end of the first acid mist discharge valve is connected to the acid storage tank 1, and the other end of the first acid mist discharge valve is connected to the acid mist absorber. One end of the second acid mist discharge valve is connected to the accident acid storage tank 2, and the other end of the second acid mist discharge valve is connected to the acid mist absorber.

[0033] It also includes a first acid discharge valve 16 and a second acid discharge valve 17. One end of the first acid discharge valve is connected to the acid storage tank 1, and the other end of the first acid discharge valve is connected to the neutralization water tank. One end of the second acid discharge valve is connected to the accident acid storage tank 2, and the other end of the second acid discharge valve is connected to the neutralization water tank.

[0034] The upper acid pipeline includes a tank truck acid inlet valve 9, a main acid inlet valve 10, a storage tank acid inlet valve 11, an acid inlet valve 12, an acid outlet valve 13, and an acid unloading pump 14. One end of the tank truck acid inlet valve 9 is connected to the acid transportation tank truck, and the other end of the tank truck acid inlet valve 9 is simultaneously connected to the main acid inlet valve 10 and the storage tank acid inlet valve 11. The main acid inlet valve 10 is connected to the acid unloading pump, the acid unloading pump is connected to the acid inlet valve, the acid inlet valve is connected to the acid storage tank 1, the storage tank acid inlet valve 11 is connected to the acid outlet valve, and the acid outlet valve is connected to the accident acid storage tank 2.

[0035] This embodiment also provides an emergency treatment method for an acid storage tank, including:

[0036] S1. Obtain the first liquid level data information measured by the radar liquid level gauge, obtain the second liquid level data information measured by the ultrasonic liquid level gauge, and obtain the initial liquid level information;

[0037] S2. Judge whether the difference between the first liquid level data information and the second liquid level data information is greater than 5 mm. If so, generate a liquid level jump alarm information; if not, enter the liquid level drop judgment;

[0038] S3. Enter the liquid level drop judgment, and judge whether one of the differences between the first liquid level data information and the initial liquid level data information being greater than 20 mm and the difference between the second liquid level data information and the initial liquid level data information being greater than 20 mm is satisfied. If so, generate an acid storage tank accident alarm information; if not, repeat step S2 after a first preset time period;

[0039] S4. Generate an accident discharge valve opening signal, an acid unloading pump opening signal, and an accident acid inlet pump opening signal according to the acid storage tank accident alarm information, for storing the acid liquid in the acid storage tank into the accident acid storage tank;

[0040] S5. Obtain the first liquid level data and the second liquid level data, and judge whether both the first liquid level data and the second liquid level data show that the liquid level is less than 1 mm; if so, generate an accident discharge valve closing signal, an acid unloading pump closing signal, and an accident acid inlet pump closing signal;

[0041] S6. Obtain the accident handling completion information, generate an acid outlet valve opening signal, a storage tank acid inlet valve opening signal, a main acid inlet valve opening signal, and an acid inlet valve opening signal. When the storage tank acid inlet valve, the main acid inlet valve, and the acid inlet valve are opened, generate an acid unloading pump opening signal, for redirecting the acid liquid in the accident acid storage tank back to the acid storage tank.

[0042] It also includes: generating a first water inlet valve opening signal and a second water inlet valve opening signal for using industrial water to clean the acid storage tank and the accident acid storage tank;

[0043] Generate a first acid discharge valve opening signal and a second acid discharge valve opening signal for discharging the waste liquid in the acid storage tank and the accident acid storage tank into the neutralization tank.

[0044] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An acid storage tank emergency treatment discharge system, characterized in that: include: An acid storage tank, an accident acid storage tank, an acid mist absorber, a neutralization pool, an accident acid unloading pump, a radar level gauge and an ultrasonic level gauge, wherein the radar level gauge and the ultrasonic level gauge are fixedly mounted on the acid storage tank, the acid storage tank and the accident acid storage tank are both connected to the neutralization pool through a pipeline, the acid storage tank and the accident acid storage tank are simultaneously connected to the acid mist absorber, the acid mist absorber is connected to the neutralization pool, the acid storage tank is connected to the accident acid storage tank through an accident acid unloading pipeline, the accident acid unloading pump is mounted on the accident acid unloading pipeline, and also includes an upper acid pipeline, the upper acid pipeline includes three ports, the first port of the upper acid pipeline is connected to the accident acid storage tank, the second port of the upper acid pipeline is connected to the acid storage tank, and the third port of the upper acid pipeline is connected to an acid transport tank truck.

2. The acid storage tank emergency treatment and discharge system according to claim 1, characterized in that: It also includes a cleaning pipeline, which includes a first water inlet valve and a second water inlet valve, one end of the first water inlet valve is connected to the acid storage tank, and the other end of the first water inlet valve is connected to industrial water, one end of the second water inlet valve is connected to the accident acid storage tank, and the other end of the second water inlet valve is connected to industrial water.

3. The acid storage tank emergency treatment and discharge system according to claim 2, characterized in that: An accident discharge valve and an accident acid inlet valve are also provided on the accident acid unloading pipeline. One end of the accident discharge valve is connected to the acid storage tank through a pipeline, and the other end of the accident discharge valve is connected to the accident acid unloading pump through a pipeline. One end of the accident acid inlet valve is connected to the accident acid unloading pump through a pipeline, and the other end of the accident acid inlet valve is connected to the accident acid storage tank through a pipeline.

4. The acid storage tank emergency treatment and discharge system according to claim 3, characterized in that: It also includes a first acid mist discharge valve and a second acid mist discharge valve, one end of the first acid mist discharge valve is connected to the acid storage tank, the other end of the first acid mist discharge valve is connected to the acid mist absorber, one end of the second acid mist discharge valve is connected to the accident acid storage tank, and the other end of the second acid mist discharge valve is connected to the acid mist absorber.

5. The acid storage tank emergency treatment and discharge system according to claim 4, characterized in that: It also includes a first acid discharge valve and a second acid discharge valve, wherein one end of the first acid discharge valve is connected to the acid storage tank, and the other end of the first acid discharge valve is connected to the neutralization water tank, and one end of the second acid discharge valve is connected to the accident acid storage tank, and the other end of the second acid discharge valve is connected to the neutralization water tank.

6. The acid storage tank emergency treatment and discharge system according to claim 5, characterized in that: The acid supply pipeline includes a tank truck acid inlet valve, an acid inlet main valve, a storage tank acid inlet valve, an acid inlet valve, an acid outlet valve and an acid unloading pump. One end of the tank truck acid inlet valve is connected to the acid transport tank truck, and the other end of the tank truck acid inlet valve is simultaneously connected to the acid inlet main valve and the storage tank acid inlet valve, the acid inlet main valve is connected to the acid unloading pump, the acid unloading pump is connected to the acid inlet valve, the acid inlet valve is connected to the acid storage tank, the storage tank acid inlet valve is connected to the acid outlet valve, and the acid outlet valve is connected to the accident acid storage tank.

7. An emergency treatment method for an acid storage tank, characterized in that: Used for the acid storage tank emergency treatment and discharge system according to any one of claims 1 to 6, the acid storage tank emergency treatment method comprises: S1. Obtain the first liquid level data information measured by the radar level meter, obtain the second liquid level data information measured by the ultrasonic level meter, and obtain the initial liquid level information; S2. Determine whether the difference between the first liquid level data information and the second liquid level data information is greater than 5mm. If so, generate a liquid level jump alarm message; if not, enter the liquid level drop judgment; S3 enters the liquid level drop judgment, judges the first liquid level data information and the initial liquid level data information difference is greater than 20mm and the second liquid level data information and the initial liquid level data information difference is greater than 20mm whether one of them is satisfied, and if so, an acid storage tank accident alarm message is generated, if not, then after a first preset time, repeat step S2; S4. Generate an accident discharge valve opening signal, an acid pump opening signal and an accident acid pump opening signal according to the acid storage tank accident alarm information, for storing the acid in the acid storage tank to the accident acid storage tank; S5. Obtain the first liquid level data and the second liquid level data, and determine whether the first liquid level data and the second liquid level data both show a liquid level less than 1 mm; if so, generating an accident discharge valve closing signal, an acid discharge pump closing signal, and an accident acid pump closing signal; S6. Obtain the accident handling completion information, generate an acid valve opening signal, a storage tank acid inlet valve opening signal, an acid inlet main valve opening signal and an acid inlet valve opening signal. When the storage tank acid inlet valve, the acid inlet main valve and the acid inlet valve are opened, generate an acid unloading pump opening signal to guide the acid in the accident acid storage tank back to the acid storage tank.

8. The method for emergency treatment of an acid storage tank according to claim 7, characterized in that: Also includes: generating a first water inlet valve opening signal and a second water inlet valve opening signal for cleaning the acid storage tank and the accident acid storage tank with industrial water; A first acid discharge valve opening signal and a second acid discharge valve opening signal are generated to discharge the waste liquid in the acid storage tank and the accident acid storage tank into the neutralization tank.

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