A purification system for adjustable fuel gas specific gravity and calorific value

Abstract

This utility model discloses a purification system for adjustable fuel gas specific gravity and calorific value, comprising a mixing tank, a primary pressurization device, a harmless treatment tower, an adsorption purification device, and an online analysis unit. The mixing tank is connected to the primary pressurization device via a pipeline, the primary pressurization device is connected to the lower part of the harmless treatment tower via a pipeline, and the upper part of the harmless treatment tower is connected to the adsorption purification device via a pipeline. The adsorption purification device is electrically connected to the online analysis unit for real-time monitoring of petrochemical gas component data entering the primary pressurization device, transmitting the data to the adsorption purification device for adjusting process parameters. The purification system for adjustable fuel gas specific gravity and calorific value provided by this utility model allows the fuel gas specific gravity to be adjusted to any desired value, which is beneficial for generating sufficient calorific value during fuel gas combustion.

Description

Technical Field

[0001] This utility model relates to the field of fuel gas purification technology, and in particular to a purification system for adjusting the specific gravity and calorific value of fuel gas. Background Technology

[0002] Currently, fuel gas, as an important combustion aid in the petrochemical industry, is mainly used for burning petrochemical tail gas. However, the composition of petrochemical tail gas varies greatly. When the gas density increases, the amount of heat and air required increases, leading to incomplete fuel combustion, black smoke, and serious environmental pollution. How to adjust the specific gravity and calorific value of fuel gas is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a purification system that can adjust the specific gravity and calorific value of fuel gas. It can adjust the specific gravity of fuel gas to any required value, which is beneficial to the generation of sufficient calorific value when the fuel gas is burned.

[0004] The technical solution provided by this utility model is as follows:

[0005] A purification system for adjustable fuel gas specific gravity and calorific value includes a mixing tank, a primary pressurization device, a harmless treatment tower, an adsorption purification device, and an online analysis unit. The mixing tank is connected to the primary pressurization device via a pipeline, the primary pressurization device is connected to the lower part of the harmless treatment tower via a pipeline, the upper part of the harmless treatment tower is connected to the adsorption purification device via a pipeline, and the adsorption purification device is electrically connected to the online analysis unit for real-time monitoring of petrochemical gas component data entering the primary pressurization device and transmitting the data to the adsorption purification device for adjusting process parameters.

[0006] Preferably, the online analysis unit includes an online gas component analyzer and an online fuel gas specific gravity and calorific value analyzer.

[0007] Preferably, the adsorption purification device is connected to the petrochemical tail gas treatment tower via a secondary pressurization device.

[0008] Preferably, the inner wall of the mixing tank is provided with a rubber layer.

[0009] Preferably, the primary pressurization device includes a screw compressor unit.

[0010] Preferably, the top of the harmless treatment tower is provided with an addition hole for adding treatment liquid, the lower part of one side of the harmless treatment tower is provided with an air inlet for petrochemical gas to enter, the upper part of the other side of the harmless treatment tower is provided with an exhaust hole for the treated petrochemical gas to be discharged, and the lower part of the other side of the harmless treatment tower is provided with a sewage outlet for the discharge of waste liquid.

[0011] Preferably, the adsorption purification device includes a plurality of adsorption towers and a control unit for controlling the plurality of adsorption towers.

[0012] This invention has the following advantages over the prior art:

[0013] This utility model's adjustable fuel gas specific gravity and calorific value purification system, through the setup of a mixing tank, a primary pressurization device, a harmless treatment tower, an adsorption purification device, and an online analysis unit, can upgrade and optimize existing fuel gas purification equipment. It allows the fuel gas specific gravity to be adjusted to any desired value, which is beneficial for generating sufficient calorific value during fuel gas combustion. Furthermore, the process adjustment of fuel gas specific gravity and calorific value is quick and efficient, highly automated, and requires minimal equipment maintenance. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the purification system for adjustable fuel gas specific gravity and calorific value in an embodiment of this utility model.

[0016] Figure label:

[0017] 1. Mixing tank; 2. Primary pressurization device; 3. Harmless treatment tower; 4. Adsorption and purification device; 5. Online analysis unit; 51. Online gas component analyzer; 52. Online fuel gas specific gravity and calorific value analyzer; 6. Secondary pressurization device; 7. Petrochemical tail gas treatment tower. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figure 1As shown, this utility model embodiment provides a purification system for adjustable fuel gas specific gravity and calorific value, including a mixing tank 1, a primary pressurization device 2, a harmless treatment tower 3, an adsorption purification device 4, and an online analysis unit 5. The mixing tank 1 is connected to the primary pressurization device 2 via a pipeline, the primary pressurization device 2 is connected to the lower part of the harmless treatment tower 3 via a pipeline, and the upper part of the harmless treatment tower 3 is connected to the adsorption purification device 4 via a pipeline. The adsorption purification device 4 is effectively electrically connected to the online analysis unit 5 for real-time monitoring of petrochemical gas component data entering the primary pressurization device 2 and transmitting the data to the adsorption purification device 4 for adjusting process parameters.

[0020] In this embodiment, the online analysis unit 5 includes a gas component online analyzer 51 and a fuel gas specific gravity and calorific value online analyzer 52. The component online analyzer 51 is used to analyze the gas composition in petrochemical tail gas; the fuel gas specific gravity and calorific value online analyzer 52 is used to analyze the specific gravity and calorific value of fuel gas.

[0021] In this embodiment, the adsorption purification device 4 is connected to the petrochemical tail gas treatment tower 7 via a secondary pressurization device 6. The adsorption purification device 4 includes several adsorption towers and a control unit for controlling these towers. The main function of the adsorption purification device 4 is to remove nitrogen, oxygen, carbon monoxide, carbon dioxide, and some methane from the petrochemical tail gas. The adsorption purification device 4 can remove most of the nitrogen, oxygen, carbon monoxide, and carbon dioxide from the petrochemical tail gas, and may remove these substances from the fuel gas multiple times as needed.

[0022] In this embodiment, a rubber layer is provided on the inner wall of the mixing tank 1, and the outside of the mixing tank 1 is made of carbon steel. The rubber layer can prevent gas from corroding the mixing tank 1.

[0023] In this embodiment, the primary pressurization device 2 includes a screw compressor unit, and the motor and electrical components of the screw compressor unit are all explosion-proof.

[0024] In this embodiment, the top of the harmless treatment tower 3 is provided with an addition hole for adding treatment liquid, the lower part of one side of the harmless treatment tower 3 is provided with an air inlet for petrochemical gas to enter, the upper part of the other side of the harmless treatment tower 3 is provided with an exhaust hole for the treated petrochemical gas to be discharged, and the lower part of the other side of the harmless treatment tower 3 is provided with a sewage outlet for waste liquid discharge. The main function of the harmless treatment tower 3 is to remove components in petrochemical tail gas that are harmful to the adsorption and purification device 4.

[0025] In this embodiment, the primary pressurization device 2 and the secondary pressurization device 6 can be existing commonly used pressurization devices.

[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A purification system for adjusting the specific gravity and heating value of fuel gas, characterized by, The system includes a mixing tank (1), a primary pressurization device (2), a harmless treatment tower (3), an adsorption purification device (4), and an online analysis unit (5). The mixing tank (1) is connected to the primary pressurization device (2) via a pipeline. The primary pressurization device (2) is connected to the lower part of the harmless treatment tower (3) via a pipeline. The upper part of the harmless treatment tower (3) is connected to the adsorption purification device (4) via a pipeline. The adsorption purification device (4) is electrically connected to the online analysis unit (5) for real-time monitoring of petrochemical gas component data entering the primary pressurization device (2) and transmitting the data to the adsorption purification device (4) for adjusting process parameters.

2. The purification system for adjustable fuel gas specific gravity and heating value according to claim 1, characterized in that, The online analysis unit (5) includes an online gas component analyzer (51) and an online fuel gas specific gravity and calorific value analyzer (52).

3. The purification system for adjustable fuel gas specific gravity and heating value according to claim 1, characterized in that, The adsorption and purification device (4) is connected to the petrochemical tail gas treatment tower (7) through a secondary pressurization device (6).

4. The purification system of adjustable fuel gas specific gravity and heating value according to claim 1 or 2 or 3, characterized in that, The inner wall of the mixing tank (1) is provided with a rubber layer.

5. The purification system of adjustable fuel gas specific gravity and heating value according to claim 1 or 2 or 3, characterized in that, The primary pressurization device (2) includes a screw compressor unit.

6. The purification system of adjustable fuel gas specific gravity and heating value according to claim 1 or 2 or 3, characterized in that, The top of the harmless treatment tower (3) is provided with an addition hole for adding treatment liquid, the lower part of one side of the harmless treatment tower (3) is provided with an air inlet for petrochemical gas to enter, the upper part of the other side of the harmless treatment tower (3) is provided with an exhaust hole for the petrochemical gas after treatment to be discharged, and the lower part of the other side of the harmless treatment tower (3) is provided with a sewage outlet for the discharge of waste liquid.

7. The purification system of adjustable fuel gas specific gravity and heating value according to claim 1 or 2 or 3, characterized in that, The adsorption purification device (4) includes several adsorption towers and a control unit for controlling the several adsorption towers.

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