Absorption tower cooler

Abstract

The utility model relates to an absorption tower cooler, which is characterized by comprising a cooling structure, a cooling water cooling circulation structure, a cooling water outlet structure and a cooling water inlet structure. Before ammonia water for synthesizing urea by a carbon dioxide gas stripping method is prepared to enter an absorption tower, a cooling pipe is arranged outside an ammonia water pipe, and cooling water is injected into the cooling pipe; cooling water flows into a condensation pipe in the cooling water cooling circulation structure after passing through the cooling pipe to cool the cooling water and circulate the cooling water, ammonia water in the ammonia water pipe can be cooled, the reaction effect of synthesizing urea through the carbon dioxide gas stripping method is improved, the cooling water can be recycled, and waste of water resources is reduced.

Description

Technical Field

[0001] The utility model relates to the field of absorption tower coolers, in particular to an absorption tower cooler. Background Art

[0002] The main urea production processes include the CO2 stripping process and aqueous solution full circulation process device of Stamicarbon in the Netherlands, the ammonia stripping process of Snapgeti in Italy, the energy-saving and low-cost ACES process of Mitsui Tosu in Japan, and the improved carbon monoxide stripping process. Nowadays, the manufacture of urea generally adopts the CO2 stripping process. In the process of synthesizing urea by CO2 stripping, the ammonia water coming out of the ammonia water tank needs to enter the low-pressure absorption tower for treatment. The low-pressure absorption tower is an important equipment for synthesizing urea by reacting carbon dioxide gas and ammonia water. Before entering the low-pressure absorption tower, the ammonia water needs to be cooled by a cooler. The function of this cooler is to cool the ammonia water to a low temperature state so that it can better absorb carbon dioxide gas in the low-pressure absorption tower. In this process, the ammonia water needs to be cooled to a low temperature state by the cooler to make it easier to react with carbon dioxide gas. In addition, the cooler can also prevent the ammonia water from overheating before entering the low-pressure absorption tower, thereby affecting the efficiency and quality of the reaction. Therefore, the ammonia water coming out of the ammonia water tank needs to pass through a cooler to be cooled to a low temperature state before entering the low-pressure absorption tower to prevent the ammonia water from overheating and affecting the reaction efficiency and quality, so as to better carry out the chemical reaction of synthesizing urea.

[0003] Therefore, an absorption tower cooler is needed to cool the ammonia water that reacts with carbon dioxide in the absorption tower. Utility Model Content

[0004] In view of the above existing technical problems, the utility model provides an absorption tower cooler, which is characterized by comprising a cooling structure, a cooling water cooling circulation structure, a cooling water outlet structure, and a cooling water inlet structure. The cooling water inlet structure is installed on the cooling structure, the cooling water outlet structure is installed below the cooling structure, and the cooling water cooling circulation structure is installed on the side of the cooling structure.

[0005] The cooling structure is composed of a cooling pipe and an ammonia water pipe. The cooling pipe is wrapped and installed outside the ammonia water pipe.

[0006] The cooling water inlet structure is composed of a cooling water inlet pipe and an inlet pipe switch. The cooling water inlet pipe is installed above the cooling pipe, and the inlet pipe switch is installed above the cooling water inlet pipe.

[0007] The cooling water drainage structure is composed of a cooling water drainage pipe and a drainage pipe switch. The cooling water drainage pipe is installed below the cooling pipe, and a drainage pipe switch is installed below the cooling pipe drainage pipe.

[0008] The cooling water temperature reduction circulation structure is composed of a cooling water outlet pipe, a cooling water return pipe, a cooler shell, heat dissipation holes, a condenser, a circulating water pump, a heat dissipation fan, a fan switch, and a water pump switch. One end of the cooling water pipe is installed on the side of the cooling pipe, and the other end of the cooling water outlet pipe passes through the cooler shell and is connected to the circulating water pump. The circulating water pump is connected to the condenser, and the other end of the condenser is connected to the cooling water return pipe. The other end of the cooling pipe return pipe is installed on the side of the cooling pipe. A heat dissipation fan is installed on one side of the cooler shell, and heat dissipation holes are respectively arranged on both sides of the cooler shell. A fan switch is installed on the outer side of the back of the cooler shell, and a water pump switch is installed below the fan switch.

[0009] Specifically, the condensing tubes are connected in four groups in parallel.

[0010] Specifically, the circulating water pump is connected to an external power supply, and the cooling fan is connected to an external power supply.

[0011] Specifically, the ammonia water pipe is made of stainless steel.

[0012] Beneficial effects of the utility model:

[0013] The utility model installs a cooling pipe outside the ammonia water pipe before the ammonia water for preparing to synthesize urea by the carbon dioxide stripping method enters the absorption tower, injects cooling water into the cooling pipe, and the cooling water flows into the condenser pipe in the cooling water temperature reduction circulation structure after passing through the cooling pipe, so as to cool the cooling water and circulate the cooling water, which can not only cool the ammonia water in the ammonia water pipe and improve the reaction effect of synthesizing urea by the carbon dioxide stripping method, but also can circulate the cooling water and reduce the waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of an absorption tower cooler of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of an absorption tower cooler of the utility model;

[0016] Figure 3 This is a partial structural schematic diagram of an absorption tower cooler of the utility model;

[0017] Figure 4 This is a partial structural schematic diagram of an absorption tower cooler of the utility model;

[0018] As shown in the figure: 1. Cooling water inlet pipe, 2. Inlet pipe switch, 3. Cooling pipe, 4. Ammonia pipe, 5. Cooling water outlet pipe, 6. Cooling water return pipe, 7. Cooler shell, 8. Heat dissipation hole, 9. Condenser, 10. Circulating water pump, 11. Cooling fan, 12. Fan switch, 13. Water pump switch, 14. Cooling water drain pipe, 15. Drain pipe switch. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] Example 1

[0023] like Figures 1 to 4 As shown, a cooling pipe 3 is installed around the outside of the ammonia water pipe 4, a cooling water inlet pipe 1 is installed above the cooling pipe 3, an inlet pipe switch 2 is installed on the upper part of the cooling water inlet pipe 1, a cooling down pipe 14 is installed below the cooling pipe 3, a down pipe switch 15 is installed at the lower part of the down pipe 14, a cooling pipe outlet pipe 5 is installed on the side of the cooling pipe, the other end of the cooling pipe outlet pipe 5 passes through the cooler shell 7 and is connected to the circulating water pump 10, the circulating water pump 10 is connected to the condensing water pipe 9, the other end of the condensing water pipe 9 is connected to the cooling water outlet pipe 5, the other end of the cooling water outlet pipe 5 passes through the cooler shell 7 and is installed on the side of the cooling pipe 3, a heat dissipation fan 11 is installed on the inner side of the cooler shell 7, heat dissipation holes 8 are respectively provided on both sides of the cooler shell 7, a fan switch 12 is installed on the outer side of the back of the cooler shell 7, and a water pump switch 13 is installed below the fan switch 12.

[0024] Example 2

[0025] When using the utility model, turn on the water inlet pipe switch 2, the cooling water enters the cooling pipe 3 through the water inlet pipe 1, turn on the water pump switch 13, the cooling water flows into the condensing water pipe 9 through the cooling water outlet pipe 5, turn on the fan switch 12, the heat dissipation fan 11 performs heat dissipation, the cooling water flows into the cooling pipe 3 through the cooling water return pipe 6, and after cooling is completed, turn on the water outlet pipe switch 15, and the cooling water flows out through the water outlet pipe 14.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An absorption tower cooler, characterized in that It consists of a cooling structure, a cooling water cooling circulation structure, a cooling water outlet structure, and a cooling water inlet structure. The cooling water inlet structure is installed on the cooling structure, the cooling water outlet structure is installed below the cooling structure, and the cooling water cooling circulation structure is installed on the side of the cooling structure.

2. An absorption tower cooler according to claim 1, characterized in that The temperature reduction cooling structure is composed of a cooling pipe and an ammonia water pipe, and the cooling pipe is wrapped and installed on the outside of the ammonia water pipe.

3. An absorption tower cooler according to claim 2, characterized in that The cooling water inlet structure is composed of a cooling water inlet pipe and an inlet pipe switch. The cooling water inlet pipe is installed above the cooling pipe, and the inlet pipe switch is installed above the cooling water inlet pipe.

4. An absorption tower cooler according to claim 2, characterized in that The cooling water drainage structure is composed of a cooling water drainage pipe and a drainage pipe switch. The cooling water drainage pipe is installed below the cooling pipe, and the drainage pipe switch is installed below the cooling pipe drainage pipe.

5. An absorption tower cooler according to claim 2, characterized in that The cooling water temperature reduction circulation structure is composed of a cooling water outlet pipe, a cooling water return pipe, a cooler shell, heat dissipation holes, a condenser, a circulating water pump, a heat dissipation fan, a fan switch, and a water pump switch. The cooling water outlet pipe is installed on the side of the cooling pipe, and the other end of the cooling water outlet pipe passes through the cooler shell and is connected to the circulating water pump. The circulating water pump is connected to the condenser, and the other end of the condenser is connected to the cooling water return pipe. The other end of the cooling pipe return pipe is installed on the side of the cooling pipe, a heat dissipation fan is installed on one side of the cooler shell, and heat dissipation holes are respectively arranged on both sides of the cooler shell. A fan switch is installed on the outer side of the back side of the cooler shell, and a water pump switch is installed below the fan switch.

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