Combined waste gas treatment equipment

Abstract

The utility model relates to the field of waste gas treatment devices and discloses combined waste gas treatment equipment which comprises a carboxylation reaction tank and a carbon dioxide high-pressure tank arranged on the right side of the carboxylation reaction tank, and a first circulating water electric control valve and a second condenser are arranged on the outer surface of the upper end of the carboxylation reaction tank. A first condenser is arranged on the outer surface of the right side of the first circulating water electric control valve. According to the combined waste gas treatment equipment disclosed by the utility model, the pressure of the buffer tank is automatically constant by adjusting the electric control valve in front of the electric water outlet valve, the temperatures of other places and an inlet are controlled by adjusting the electric control valve in front of the electric water outlet valve and the electric control valve in front of the condenser, and the pressure release speed is controlled by adjusting the frequency conversion frequency of the pressurizing machine; after the high-pressure gas storage tank of the compressor is adjusted, the adjusting valve control system preferentially uses and recycles carbon dioxide, the waste gas treatment mode is more environment-friendly and energy-saving, the utilization rate of resources is increased, and engineering low-carbon emission is achieved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment devices, in particular to a combined waste gas treatment device. Background Art

[0002] Industrial waste gas treatment refers to the pre-treatment of waste gas generated by industrial sites such as factories and workshops before external discharge to meet the national standards for external waste gas discharge. The principles of industrial waste gas treatment include activated carbon adsorption, catalytic combustion, catalytic oxidation, acid-base neutralization, biological washing, biological trickling, plasma, etc. The waste gas treatment tower adopts a five-layer waste gas adsorption filtration purification system. The industrial waste gas treatment is carefully designed and the waste gas is purified and filtered layer by layer, with good results.

[0003] Carbon dioxide waste gas treatment equipment is widely used in factories. However, traditional carbon dioxide waste gas treatment equipment has high energy consumption, easily causes waste of resources, and has low working efficiency. For this reason, we propose a combined waste gas treatment equipment. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a combined exhaust gas treatment device, which has the advantages of strong practicability and high working efficiency to solve the above problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined waste gas treatment equipment, including a carboxylation reaction tank, and a carbon dioxide high-pressure tank arranged on the right side of the carboxylation reaction tank, the upper outer surface of the carboxylation reaction tank is provided with a first circulating water electric regulating valve and a second condenser, the right outer surface of the first circulating water electric regulating valve is provided with a first condenser, the lower outer surface of the first condenser is provided with a recovery phenol receiver, the lower outer surface of the second condenser is provided with a phenol water receiver, the right outer surface of the phenol water receiver is provided with a carbon dioxide buffer tank, and the right outer surface of the carbon dioxide buffer tank is provided with a compressor.

[0008] Preferably, a first pipe is fixedly connected to the outer surface of the upper end of the carboxylation reaction tank, a tee is fixedly connected to the outer surface of the upper end of the first pipe, a second pipe is fixedly connected between the tee and the second condenser, a first electric water outlet valve and a first electric regulating valve are provided on the second pipe, and the first electric water outlet valve is located on the right side of the first electric regulating valve.

[0009] Preferably, a third pipe is fixedly connected between the second condenser and the phenol water receiver, a fourth pipe is fixedly connected between the phenol water receiver and the carbon dioxide buffer tank, and a second electric water outlet valve is provided on the fourth pipe.

[0010] Preferably, a fifth pipeline is fixedly connected between the carbon dioxide buffer tank and the compressor, and a third electric water outlet valve is provided on the fifth pipeline. A sixth pipeline is fixedly connected between the compressor and the carbon dioxide high-pressure tank, and a fourth electric water outlet valve is provided on the sixth pipeline.

[0011] Preferably, a seventh pipe is fixedly connected to the outer surface of the upper end of the carbon dioxide high-pressure tank, and a fifth electric water outlet valve is fixedly connected to one end of the seventh pipe.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a combined exhaust gas treatment device, which has the following beneficial effects:

[0014] This combined waste gas treatment equipment can automatically maintain a constant buffer tank pressure by adjusting the electric regulating valve in front of the electric water outlet valve, control the inlet temperature by adjusting the electric regulating valve in front of the electric water outlet valve and the electric regulating valve in front of the condenser, control the pressure release speed by adjusting the compressor frequency conversion frequency, and give priority to the use of recycled carbon dioxide by adjusting the regulating valve control system after the compressor high-pressure gas tank. This waste gas treatment method is more environmentally friendly and energy-saving, improves the utilization rate of resources, achieves low-carbon emissions of the project, and improves the company's environmental protection benefits, so that it can be widely used. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a combined exhaust gas treatment device of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of a carboxylation reaction tank in a combined waste gas treatment device of the utility model;

[0017] Figure 3 The utility model is a structural schematic diagram of a carbon dioxide high-pressure tank in a combined waste gas treatment device.

[0018] In the figure: 1. Carboxylation reaction tank; 2. First circulating water electric regulating valve; 3. First condenser; 4. Second condenser; 5. Carbon dioxide buffer tank; 6. Carbon dioxide high-pressure tank; 7. Compressor; 8. Phenol water receiver; 9. Phenol recovery receiver. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A combined waste gas treatment device comprises a carboxylation reaction tank 1, and a carbon dioxide high-pressure tank 6 arranged on the right side of the carboxylation reaction tank 1, a first circulating water electric regulating valve 2 and a second condenser 4 are arranged on the upper outer surface of the carboxylation reaction tank 1, a first condenser 3 is arranged on the right outer surface of the first circulating water electric regulating valve 2, a phenol recovery receiver 9 is arranged on the lower outer surface of the first condenser 3, a phenol water receiver 8 is arranged on the lower outer surface of the second condenser 4, a carbon dioxide buffer tank 5 is arranged on the right outer surface of the phenol water receiver 8, a compressor 7 is arranged on the right outer surface of the carbon dioxide buffer tank 5, a first pipeline is fixedly connected to the upper outer surface of the carboxylation reaction tank 1, a tee is fixedly connected to the upper outer surface of the first pipeline, a second pipeline is fixedly connected between the tee and the second condenser 4, and a compressor 7 is arranged on the second pipeline The first electric water outlet valve and the first electric regulating valve are arranged. The first electric water outlet valve is located on the right side of the first electric regulating valve. The CO2 of the carboxylation reaction tank 1 is discharged and depressurized. It is an anhydrous system and does not pass through the water-containing phenol water receiver 8. In front of the large water outlet valve of the carboxylation reaction tank 1, an electric regulating valve is added, which is used for CO2 recovery alone. After the CO2 recovery passes through the first condenser 3 and the recovery phenol receiver 9 to remove the small amount of phenol carried, the CO2 passes through the carbon dioxide buffer tank 5, and then is compressed by the compressor 7 (compressed to 1.0MPa), enters the carbon dioxide high-pressure tank 6, and automatically connects to the original CO2 gasification system for continued use. There is a large amount of saturated suphenol in the return gas. It must be ensured that no large amount of phenol flows out with the gas during the depressurization process. The temperature and pressure in the carboxylation tank must be detected to accurately intercept and control the CO2 exhaust. The small amount of phenol mixed in is recovered after condensation, and the depressurization process of each kettle is controlled not to impact each other. The recovered CO2 after pressurization is preferentially incorporated into the CO2 pipeline network for use.

[0021] A third pipe is fixedly connected between the second condenser 4 and the phenol water receiver 8, a fourth pipe is fixedly connected between the phenol water receiver 8 and the carbon dioxide buffer tank 5, and a second electric water outlet valve is arranged on the fourth pipe, a fifth pipe is fixedly connected between the carbon dioxide buffer tank 5 and the compressor 7, and a third electric water outlet valve is arranged on the fifth pipe, a sixth pipe is fixedly connected between the compressor 7 and the carbon dioxide high-pressure tank 6, and a fourth electric water outlet valve is arranged on the sixth pipe, a seventh pipe is fixedly connected to the outer surface of the upper end of the carbon dioxide high-pressure tank 6, and a fifth electric water outlet valve is fixedly connected to one end of the seventh pipe. When using the electric valve, only one-key operation of the system is required (this operation is a conventional method in this field and is not described in detail here), and no manual intervention is required.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined waste gas treatment device, comprising a carboxylation reaction tank (1), and a carbon dioxide high-pressure tank (6) arranged on the right side of the carboxylation reaction tank (1), characterized in that: The upper outer surface of the carboxylation reaction tank (1) is provided with a first circulating water electric regulating valve (2) and a second condenser (4); the right outer surface of the first circulating water electric regulating valve (2) is provided with a first condenser (3); the lower outer surface of the first condenser (3) is provided with a phenol recovery receiver (9); the lower outer surface of the second condenser (4) is provided with a phenol water receiver (8); the right outer surface of the phenol water receiver (8) is provided with a carbon dioxide buffer tank (5); and the right outer surface of the carbon dioxide buffer tank (5) is provided with a compressor (7).

2. The combined exhaust gas treatment equipment according to claim 1, characterized in that: The outer surface of the upper end of the carboxylation reaction tank (1) is fixedly connected to a first pipe, the outer surface of the upper end of the first pipe is fixedly connected to a tee, a second pipe is fixedly connected between the tee and the second condenser (4), and a first electric water outlet valve and a first electric regulating valve are provided on the second pipe, and the first electric water outlet valve is located on the right side of the first electric regulating valve.

3. The combined exhaust gas treatment equipment according to claim 1, characterized in that: A third pipe is fixedly connected between the second condenser (4) and the phenol water receiver (8), a fourth pipe is fixedly connected between the phenol water receiver (8) and the carbon dioxide buffer tank (5), and a second electric water outlet valve is provided on the fourth pipe.

4. The combined exhaust gas treatment equipment according to claim 1, characterized in that: A fifth pipeline is fixedly connected between the carbon dioxide buffer tank (5) and the compressor (7), and a third electric water outlet valve is provided on the fifth pipeline. A sixth pipeline is fixedly connected between the compressor (7) and the carbon dioxide high-pressure tank (6), and a fourth electric water outlet valve is provided on the sixth pipeline.

5. The combined exhaust gas treatment equipment according to claim 1, characterized in that: The outer surface of the upper end of the carbon dioxide high-pressure tank (6) is fixedly connected to a seventh pipe, and one end of the seventh pipe is fixedly connected to a fifth electric water outlet valve.

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