Tail gas cooling device for urea production system
A production system and exhaust gas cooling technology, used in lighting and heating equipment, direct contact heat exchangers, dispersed particle separation, etc., can solve the problems of safety and hidden dangers of urea, and achieve the effect of saving resources and saving expenses
Inactive Publication Date: 2017-11-21
GUIZHOU YIHUA CHEM
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Problems solved by technology
[0003] In the process of urea production, tail gas will be produced, and the tail gas carries a large amount of heat. If it cannot be cooled in time, it will cause danger. However, in the existing technology, there is no complete method for cooling the tail gas. There are potential safety hazards in the production process of urea. Therefore, we urgently need to design a tail gas cooling device for the urea production system to solve the above problems
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0021] refer to Figure 1-3 , a tail gas cooling device for a urea production system, comprising a tail gas recovery body 1, the tail gas recovery body 1 is a hollow rectangular structure, and the upper end of the tail gas recovery body 1 is provided with an opening, and the outer side of the tail gas recovery body 1 is wrapped with a layer of heat absorbing Soft board, the opening of the exhaust gas recovery body 1 is provided with a cover 2, and the cover 2 is sealed and connected with the opening of the exhaust gas recovery body 1, the cover 2 is provided with a motor 18, and the moving shaft 5 is connected to the motor 18, The cover 2 is provided with an air inle...
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The invention discloses a tail gas cooling device for a urea production system. The tail gas cooling device comprises a tail gas recycling body which is of a hollow rectangular structure, the upper end of the tail gas recycling body is provided with an opening, a cover cap is arranged at the opening of the tail gas recycling body, and the cover cap is connected with the opening of the tail gas recycling body in a sealed manner; and a cooling device is arranged at the middle of the tail gas recycling body, and the cooling device comprises a moving shaft, shunting pipes, a branch pipe and a main water pipe, wherein two shunting pipes are movably arranged on the inner walls of the two sides of the tail gas recycling body, and the shunting pipes are arranged to be parallel to the inner wall of the tail gas recycling body. Rotatable high-pressure spray pipes are arranged, so that cooling is accelerated; a movable stop rod is arranged, and therefore water can be drained to the outer side by means of rising and falling of a floating plate on the condition that water accumulates too much; the floating plate is arranged above a water outlet pipe, and then gas can be prevented from being exhausted out of the water outlet pipe; and a replaceable drying device is arranged and can be circularly used, so that resources are saved, and the expense is reduced.
Description
technical field [0001] The invention relates to the technical field of gas cooling, in particular to a tail gas cooling device of a urea production system. Background technique [0002] Urea is an organic compound composed of carbon, nitrogen, oxygen and hydrogen, also known as urea. It is a product of animal protein metabolism and is usually used as nitrogen fertilizer for plants. Urea is synthesized in the liver and is excreted by mammals. This metabolic process is called the urea cycle. Urea is the first organic compound obtained by artificially synthesizing inorganic substances, and the theory of vitality has since been overturned. [0003] In the process of urea production, tail gas will be produced, and the tail gas carries a large amount of heat. If it cannot be cooled in time, it will cause danger. However, in the existing technology, there is no complete method for cooling the tail gas. There are potential safety hazards in the production process of urea. Therefore...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F28C3/06B01D53/26
CPCB01D53/26F28C3/06
Inventor 李俊陈松黄正毅熊成江龙仲书杨森张庆荣周玉文刘勇唐旭本
Owner GUIZHOU YIHUA CHEM