CN219640777U

CN219640777U - Gas cooling system

Info

Publication number: CN219640777U
Application number: CN202320992423.0U
Authority: CN
Inventors: 边亭亭; 黄公青; 王耀; 高建民; 董金龙
Original assignee: Inner Mongolia Boda Field Chemical Co ltd
Current assignee: Inner Mongolia Boda Field Chemical Co ltd
Priority date: 2023-04-27
Filing date: 2023-04-27
Publication date: 2023-09-05
Anticipated expiration: 2033-04-27

Abstract

The utility model relates to the technical field of cooling devices, which aims to solve the problem that a tube plate is easy to be corroded by ammonia water in a long-term cooling process; the present utility model provides a gas cooling system comprising: the device comprises a heat exchanger group, an air inlet header pipe and a plurality of drying devices; the drying device comprises a containing outer barrel and a drying inner piece; the drying inner piece is arranged on the inner side wall of the accommodating outer barrel; a plurality of shunt tubes are arranged in the top of the accommodating outer barrel; the air inlet main pipe penetrates into the accommodating outer barrel and is communicated with the plurality of shunt pipes; the shunt tube penetrates into the drying inner piece; the end of the accommodating outer barrel far away from the drying internal part is communicated with an exhaust manifold; the exhaust manifold is in communication with the heat exchanger group. According to the cooling system provided by the utility model, the ammonia-containing gas in the air inlet main pipe is uniformly and pre-dried by adopting the drying device and then is introduced into the heat exchanger group for cooling, so that corrosion of a tube plate in the heat exchanger group caused by water-soluble ammonia in the gas due to long-term cooling is avoided.

Description

Gas cooling system

Technical Field

The utility model relates to the technical field of cooling devices, in particular to a gas cooling system.

Background

The water cooler is a heat exchange device using cooling water as a cooling medium, and is commonly applied to the process of synthesizing ammonia, and the process gas at the outlet of the synthesizing tower is cooled, so that high-purity ammonia can be more easily separated from the following ammonia cooler; a tube bank type water heat exchanger as disclosed in the publication CN115930633 a;

however, the long-term operation of the heat exchange by using cooling water easily causes corrosion at the tube plate of the equipment, because ammonia in the process gas is very soluble in water and can cause corrosion at the tube plate of the equipment when the cooling water is operated for a long time.

Based on the foregoing, there is a great need for a gas cooling system that is not prone to corrosion conditions over long periods of use.

Disclosure of Invention

The utility model aims to provide a gas cooling system, which aims to solve the technical problem that a tube plate is easy to be corroded by ammonia water in a long-term cooling process.

The embodiment of the utility model is realized by the following technical scheme:

a gas cooling system, comprising:

the device comprises a heat exchanger group, an air inlet header pipe and a plurality of drying devices;

the drying device comprises a containing outer barrel and a drying inner piece;

the drying inner piece is arranged on the inner side wall of the accommodating outer barrel;

a plurality of shunt tubes are arranged in the top of the accommodating outer barrel;

the air inlet main pipe penetrates into the accommodating outer barrel and is communicated with the plurality of shunt pipes;

the shunt tube penetrates into the drying inner piece;

the end of the accommodating outer barrel far away from the drying internal part is communicated with an exhaust manifold;

the exhaust manifold is in communication with the heat exchanger group.

Preferably, the heat exchanger group comprises a first heat exchanger and a second heat exchanger;

the exhaust manifold is communicated with an air inlet pipe of the first heat exchanger;

the second heat exchanger is in series with the first heat exchanger.

Preferably, the drying device is arranged between the first heat exchanger and the second heat exchanger.

Preferably, a lap ring is arranged in the end part of the accommodating outer barrel, which is close to the shunt pipe; the drying internals are arranged on the lap ring.

Preferably, the drying internals include a desiccant and openings Kong Kuang;

the desiccant is built into the opening Kong Kuang;

the shunt tube penetrates the desiccant;

the opening Kong Kuang is mounted on the grommet.

Preferably, the top of the accommodating outer barrel is detachably connected with a cover body; the air inlet main pipe passes through the cover body and enters the inner cavity of the accommodating outer barrel to be communicated with the shunt pipe.

Preferably, a plurality of first connecting blocks are arranged on the outer side wall of the cover body; the outer side wall of the end part of the accommodating outer barrel, which is close to the air inlet main pipe, is provided with a plurality of second connecting blocks; the first connecting block is in threaded connection with the second connecting block.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:

according to the cooling system provided by the utility model, the ammonia-containing gas in the air inlet main pipe is uniformly and pre-dried by adopting the drying device and then is introduced into the heat exchanger group for cooling, so that corrosion of a tube plate in the heat exchanger group caused by water-soluble ammonia in the gas due to long-term cooling is avoided.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a system of the present utility model;

fig. 2 is a schematic view of the structure of the drying device in fig. 1.

Icon: the heat exchanger comprises a 1-heat exchanger group, a 11-first heat exchanger, a 12-second heat exchanger, a 2-air inlet main pipe, a 3-drying device, a 31-accommodating outer barrel, a 32-drying inner piece, a 321-opening Kong Kuang, a 4-split pipe, a 5-air outlet main pipe, a 6-lap ring, a 7-cover body and an 8-air blower.

Detailed Description

Example 1

Referring to fig. 1 to 2, the present utility model provides the following technical solutions: a gas cooling system is suitable for cooling gas with ammonia.

Specifically, as shown in fig. 1 and 2, a gas cooling system includes:

a heat exchanger group 1, an intake manifold 2, and a plurality of drying devices 3;

the drying device 3 can be used for drying the gas in the air inlet header pipe 2 in advance, and then the gas is introduced into the heat exchanger group 1 for cooling, so that corrosion of the tubulation in the heat exchanger group 1 caused by water-soluble ammonia in the gas due to long-term cooling is avoided.

In this embodiment, the medium of the heat exchanger group 1 is cooling water.

The drying device 3 comprises a containment tub and drying internals 32; the drying inner member 32 is arranged on the inner side wall of the accommodating outer barrel 31; a plurality of shunt tubes 4 are arranged in the top of the accommodating outer barrel 31; the air inlet main pipe 2 penetrates into the accommodating outer barrel 31 and is communicated with the plurality of shunt tubes 4; the shunt 4 penetrates the dry inner piece 32; the end of the accommodating outer barrel 31 far away from the drying inner piece 32 is communicated with an exhaust manifold 5; the exhaust manifold 5 communicates with the heat exchanger group 1.

The drying inner piece 32 is arranged on the inner side wall of the accommodating outer barrel 31, so that the air introduced by the air inlet manifold 2 is dried conveniently, wherein a gas buffer cavity is reserved between the drying inner piece 32 and the accommodating outer barrel 31, and the dried air is continuously introduced into the heat exchanger group 1 through the air outlet manifold 5, so that the condition that a tube plate is corroded due to long-term cooling of ammonia gas is avoided;

further, the air inlet main pipe 2 may be further connected to an air blower 8, so that the air in the air inlet main pipe 2 can be conveniently and quickly introduced into the shunt pipe 4 through the air blower 8, and is quickly dried through the drying internal part 32 and buffered in the air buffer cavity; the rapid drying by the plurality of shunt tubes 4 facilitates uniform passage of gas into the drying internals 32.

Specifically, as shown in fig. 1, the heat exchanger group 1 includes a first heat exchanger 11 and a second heat exchanger 12; the exhaust manifold 5 is communicated with an air inlet pipe of the first heat exchanger 11; the second heat exchanger 12 is connected in series with the first heat exchanger 11.

The second heat exchanger 12 is connected with the first heat exchanger 11 in series, so that multistage cooling is conveniently realized, and ammonia-containing gas is conveniently cooled comprehensively, so that subsequent ammonia purification is convenient.

Specifically, as shown in fig. 1, the drying device 3 is disposed between the first heat exchanger 11 and the second heat exchanger 12.

The drying device 3 is further arranged between the first heat exchanger 11 and the second heat exchanger 12, so that the special condition that water vapor is carried after the cooling of the previous heat exchanger to influence the next heat exchanger is avoided.

Specifically, as shown in fig. 2, a lap ring 6 is arranged in the end part of the accommodating outer barrel 31 close to the shunt tube 4; the drying inner 32 is placed on the grommet 6.

The drying inner part 32 is easily and firmly arranged by the ring 6, wherein the ring 6 is fixedly connected with the inner side wall of the accommodating outer barrel 31.

Specifically, as shown in fig. 2, the drying interior 32 includes a desiccant and an opening Kong Kuang 321; the desiccant is placed inside the opening Kong Kuang; the shunt 4 penetrates the desiccant; the opening Kong Kuang 321 is placed on the grommet 6.

The opening Kong Kuang is arranged on the lap 6, so that the desiccant in the opening Kong Kuang 321 can be replaced conveniently.

In this embodiment, a plurality of ventilation holes are formed at the bottom of the opening Kong Kuang; in order to avoid the desiccant falling and being introduced into the exhaust manifold 5 along with the gas, a filter screen is additionally arranged at the connection port of the exhaust manifold 5 and the accommodating outer barrel 31, or a desiccant which is dust-free and does not absorb ammonia is selected.

Specifically, as shown in fig. 2, the top of the accommodating outer tub 31 is detachably connected with a cover 7; the intake manifold 2 passes through the cover 7 and enters the inner cavity of the accommodating outer barrel 31 to be communicated with the shunt tube 4.

The cover 7 is detachably connected to the top of the accommodating outer barrel 31, so that the drying agent can be conveniently replaced and the drying device 3 can be conveniently cleaned.

Specifically, as shown in fig. 2, the outer side wall of the cover 7 is provided with a plurality of first connection blocks; the outer side wall of the end part of the accommodating outer barrel 31 close to the air inlet main pipe 2 is provided with a plurality of second connecting blocks; the first connecting block is in threaded connection with the second connecting block.

The cover 7 is detachably connected with the accommodating outer barrel 31 through the threaded connection of the first connecting block and the second connecting block.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A gas cooling system comprising a heat exchanger group (1) and an intake manifold (2), characterized in that: also comprises a plurality of drying devices (3);

the drying device (3) comprises a containing outer tub (31) and drying internals (32);

the drying inner piece (32) is arranged on the inner side wall of the accommodating outer barrel (31);

a plurality of shunt tubes (4) are arranged in the top of the accommodating outer barrel (31);

the air inlet main pipe (2) penetrates into the accommodating outer barrel (31) and is communicated with the plurality of shunt tubes (4);

-the shunt (4) penetrates into the drying inner piece (32);

the end of the accommodating outer barrel (31) far away from the drying internal part (32) is communicated with an exhaust manifold (5);

the exhaust manifold (5) is in communication with the heat exchanger group (1).

2. A gas cooling system according to claim 1, wherein: the heat exchanger group (1) comprises a first heat exchanger (11) and a second heat exchanger (12);

the exhaust manifold (5) is communicated with an air inlet pipe of the first heat exchanger (11);

the second heat exchanger (12) is connected in series with the first heat exchanger (11).

3. A gas cooling system according to claim 2, wherein: the drying device (3) is arranged between the first heat exchanger (11) and the second heat exchanger (12).

4. A gas cooling system according to any one of claims 1 to 3, characterized in that: a lap ring (6) is arranged in the end part of the accommodating outer barrel (31) close to the shunt tube (4); the drying inner piece (32) is arranged on the lap ring (6).

5. The gas cooling system of claim 4, wherein: the drying interior (32) includes a desiccant and an opening Kong Kuang (321);

the desiccant is built into the opening Kong Kuang (321);

the shunt tube (4) penetrates into the desiccant;

the opening Kong Kuang (321) is arranged on the lap ring (6).

6. The gas cooling system of claim 5, wherein: the top of the accommodating outer barrel (31) is detachably connected with a cover body (7); the air inlet main pipe (2) passes through the cover body (7) and enters the inner cavity of the accommodating outer barrel (31) to be communicated with the shunt pipe (4).

7. The gas cooling system of claim 6, wherein: the outer side wall of the cover body (7) is provided with a plurality of first connecting blocks; the outer side wall of the end part of the accommodating outer barrel (31) close to the air inlet main pipe (2) is provided with a plurality of second connecting blocks; the first connecting block is in threaded connection with the second connecting block.