CN221649252U

CN221649252U - Gas cooler

Info

Publication number: CN221649252U
Application number: CN202323395415.7U
Authority: CN
Inventors: 段有龙; 谭瑞春; 谭博文
Original assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Current assignee: Acre Coking and Refractory Engineering Consulting Corp MCC
Priority date: 2023-12-12
Filing date: 2023-12-12
Publication date: 2024-09-03
Anticipated expiration: 2033-12-12

Abstract

The utility model relates to the technical field of gas cooling, in particular to a gas cooler. Comprises a body, a gas distribution device, a spraying device, a gas mixing device and a gas defogging device; the body is of a horizontal cylinder structure; the gas distribution device comprises a gas inlet, wherein the gas inlet is connected with a gas main pipe, the gas main pipe is divided into two gas branch pipes, and the two gas branch pipes are positioned at two sides of the body; the gas mixing devices are symmetrically arranged, one end of each gas mixing device is connected with each gas branch pipe, and the other end of each gas mixing device extends into the body; the spray head of the spraying device is arranged in the gas mixing device, and after the gas and the spraying liquid are mixed in the gas mixing device, the gas and the spraying liquid are mutually impacted and sprayed; the gas demisting device comprises a vertically arranged gas outlet, the gas outlet is connected with the body, and the gas demisting device is provided with a cyclone plate for removing fog drops entrained in gas. The cooling process is fast, the cooling effect is good, the blockage is not easy, the structure is simple, the operation is reliable, and the investment is low.

Description

Gas cooler

Technical Field

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

Background

Sulfur dioxide is one of the most main atmospheric pollutants, sulfur dioxide is sprayed out during volcanic eruption, sulfur dioxide is also generated in a plurality of industrial processes, industrial waste gas generated in the combustion process of fossil fuel accounts for about 70% of the total discharge amount of sulfur dioxide, and the sulfur content of the fossil fuel can be effectively reduced by carrying out a desulfurization process on the fossil fuel before the fossil fuel is combusted.

The HPF catalyst is a liquid phase catalytic oxidation reaction, has catalytic action on the absorption process and the regeneration process, has the advantages of high activity, good fluidity and the like, and is widely applied. In the existing HPF desulfurization and decyanation process, gas after an air blower firstly enters a pre-cooling tower to be in reverse contact with circulating spraying liquid sprayed from the tower top, the gas is cooled to 30 ℃ and then enters a desulfurization tower, the circulating liquid is pumped out of the lower part of the tower to be sent to a circulating liquid cooler by a pump, and the circulating liquid enters the tower top to be sprayed in a circulating way after being cooled to 28 ℃.

But the existing precooling tower has low gas flow rate, poor cooling effect, easy blockage, large tower diameter, complex structure and high investment cost.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model provides the gas cooler which has the advantages of quick cooling process, good cooling effect, difficult blockage, simple structure, reliable operation and low investment.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

The gas cooler comprises a body, a gas distribution device, a spraying device, a gas mixing device and a gas defogging device; the body is of a horizontal cylinder structure; the gas distribution device comprises a gas inlet, wherein the gas inlet is connected with a gas main pipe, the gas main pipe is divided into two gas branch pipes, and the two gas branch pipes are positioned at two sides of the body; the gas mixing devices are symmetrically arranged, one end of each gas mixing device is connected with each gas branch pipe, and the other end of each gas mixing device extends into the body; the spray head of the spraying device is arranged in the gas mixing device, and after the gas and the spraying liquid are mixed in the gas mixing device, the gas and the spraying liquid are mutually impacted and sprayed; the gas demisting device comprises a vertically arranged gas outlet, the gas outlet is connected with the body, and the gas demisting device is provided with a cyclone plate for removing fog drops entrained in gas.

Further, the body comprises a cylinder body and sealing heads, the cylinder body is a cylinder, the axis is horizontal, and the sealing heads are fixedly connected to two sides of the cylinder body.

Further, the gas distribution device comprises a gas main pipe, a gas branch pipe and a gas inlet; the gas main pipe is horizontally and longitudinally arranged, the gas inlet is horizontally and transversely arranged, and the gas inlet is vertically connected with the middle part of the gas main pipe; the gas branch pipes are horizontally and transversely arranged and are vertically connected with the two ends of the gas main pipe.

Further, the gas mixing device is of a tubular structure and is divided into a straight pipe section, a contraction section, a throat section and an expansion section; the straight pipe section is connected with the gas branch pipe, and the spray head is arranged in the straight pipe section.

Further, the plurality of gas mixing devices are horizontally arranged and distributed on the gas branch pipes in a row, and the gas mixing devices of the two gas branch pipes are arranged in a face-to-face one-to-one correspondence manner.

Further, the spraying device comprises a spraying liquid inlet, a spraying liquid outlet, a spraying pipe and a spray head; the spraying liquid inlet is fixedly connected to the top of the body, and the spraying liquid outlet is fixedly connected to the bottom of the body; the spray pipe is connected with the spray head pipeline, and the spray liquid outlet is connected with the spray pipe pipeline.

Further, a cooler and a pump are arranged on a pipeline connected with the spray liquid outlet and the spray pipe.

Further, the gas demisting device comprises a supporting annular plate, a cyclone plate, a small cylinder body, a cover plate, a gas outlet and a liquid guide pipe; the axis of the small cylinder is vertical and fixedly connected to the top of the body, the cover plate is horizontally fixedly connected to the top end of the small cylinder, the axis of the gas outlet is the same as the axis of the small cylinder, and the gas outlet is fixedly connected to the cover plate; the support ring plate is horizontally fixedly connected in the small cylinder body, and the cyclone plate is fixedly connected on the support ring plate.

The liquid guide pipe is vertically arranged, the top end of the liquid guide pipe is connected with the supporting annular plate, the bottom end of the liquid guide pipe extends into the bottom of the body, and the liquid guide pipe is positioned between the cyclone plate and the small cylinder.

Compared with the prior art, the utility model has the beneficial effects that:

1. The body of the utility model is of a horizontal structure, the height of the device is reduced, the manufacturing cost is greatly reduced, the structure is simple, the manufacturing cost is low, and the operation is reliable. The gas mixing devices are symmetrically arranged, and after the gas and the spraying liquid are mixed, the gas and the spraying liquid are mutually impacted and sprayed, so that the cooling effect is good.

2. The utility model arranges a coal gas demisting device at the coal gas outlet, adopts a cyclone plate to demist, and does not block.

3. The gas is mixed with atomized spray liquid in the spray liquid nozzle through the contraction section and the throat section, the flow speed is reduced, the mixture is fully mixed, the mixture is further mixed through the expansion section and then is sprayed forwards to enter the impact area, an impact surface is formed in the middle of the gas cooler, an impact area with high turbulence and enhanced mass transfer is formed, and the main gas-liquid absorption reaction is completed in the impact area. The very high relative velocity between the tiny droplets of the sprayed liquid and the gas in the area of the impact surface can be achieved, forming a highly turbulent impact zone. The liquid phase is a disperse phase system, and shearing force is generated by collision among the droplets or between the droplets to cause the droplets to be broken, so that the surface area of the droplets is increased, and the mass transfer rate is increased; the jets impinge on each other, creating strong radial and axial turbulence velocity components, which enhance the inter-phase transfer of the cooling process, and thus good mixing can be achieved in the impingement zone, thereby accelerating the cooling process.

Drawings

Fig. 1 is a schematic front view of the structure of the present utility model.

Fig. 2 is a cross-sectional view A-A of fig. 1.

In the figure: 11-cylinder 12-seal head 13-support 14-manhole 15-vent hole 21-gas main pipe 22-gas branch pipe 23-gas inlet 31-straight pipe section 32-contracted section 33-throat section 34-expanded section 41-spray liquid inlet 42-spray liquid outlet 43-spray pipe 44-spray head 45-pump 46-cooler 51-support ring plate 52-swirl plate 53-small cylinder 54-cover plate 55-gas outlet 56-liquid guide tube

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

[ Example ]

As shown in fig. 1 and 2, the gas cooler comprises a body, a gas distribution device, a spraying device, a gas mixing device and a gas defogging device.

The body comprises a cylinder 11, sealing heads 12, a support 13, a manhole 14 and a vent hole 15, wherein the cylinder 11 is a cylinder, the axis is horizontal, and the two sealing heads 12 are fixedly connected to the left end and the right end of the cylinder 11. Manhole 14 is fixedly connected to the top of barrel 11, and vent 15 is fixedly connected to the bottom of barrel 11. The support 13 is fixedly connected to the bottom of the cylinder 11, and the support 13 supports the cylinder 11.

The gas distribution device comprises a gas main pipe 21, a gas branch pipe 22 and a gas inlet 23. The gas main pipe 21 is longitudinally arranged, the axis of the gas main pipe 21 is equal to the axis of the cylinder 11 in height, the axis of the gas main pipe 21 is perpendicular to the axis of the cylinder 11, and two end surfaces of the gas main pipe 21 are closed by plugging plates. The gas inlet 23 is horizontally and transversely arranged, and the gas inlet 23 is vertically connected with the middle part of the gas main pipe 21. Two gas branch pipes 22 are horizontally and transversely arranged and are respectively and vertically connected with two ends of the gas main pipe 21. One end of the gas branch pipe 22 is communicated with the gas main pipe 21, and the other end is closed by a plugging plate. Two gas branch pipes 22 are positioned on two sides of the cylinder 11. The axis of the gas branch pipe 22 is positioned on the same horizontal plane with the axis of the cylinder 11.

The gas mixing device has a tubular structure and is divided into a straight pipe section 31, a contraction section 32, a throat section 33 and an expansion section 34. The straight pipe section 31 is a straight circular pipe, one end of the straight pipe section 31 is connected with the gas branch pipe 22, the other end is connected with the contraction section 32, the contraction section 32 is a conical circular pipe, and the diameter is gradually reduced. The throat section 33 is a straight small circular tube, and the expansion section 34 is a conical tube, and the diameter of the throat section is gradually increased.

The gas mixing devices are horizontally arranged and are uniformly distributed on the gas branch pipes 22 in a row, 4 gas mixing devices are uniformly distributed on each gas branch pipe 22 in the embodiment, the gas mixing devices of the two gas branch pipes 22 are arranged in face-to-face one-to-one correspondence, and the outlet of the expansion section 34 of one gas branch pipe faces the outlet of the expansion section 34 of the other gas branch pipe.

The spray device comprises a spray liquid inlet 41, a spray liquid outlet 42, a spray pipe 43, a spray head 44, a pump 45 and a cooler 46. The spray liquid inlet 41 is vertically fixedly connected to the top of the cylinder 11, the spray liquid outlet 42 is horizontally fixedly connected to the bottom of the cylinder 11, the spray pipe 13 is horizontally arranged and is connected with a spray head 44 pipeline, the spray liquid outlet 42 is connected with a spray pipe 43 pipeline, and the spray head 44 is arranged in the straight pipe section 31. A pump 45 and a cooler 46 are provided on the line connecting the spray outlet 42 with the spray pipe 43.

The spraying liquid adopts ammonia water, the spraying liquid enters the cylinder 11 through the spraying liquid inlet 41, enters the pump 45 and the cooler 46 through the spraying liquid outlet 42, enters the spraying pipe 43 after cooling, enters the spray head 44 through a pipeline, and is sprayed and circulated. The circulating spray liquid is replenished by means of a partial renewal, with the excess spray liquid being fed to the tank section unit via the vent 15 for further treatment.

The gas is mixed with the atomized spray liquid sprayed by the spray liquid spray nozzle 44 in the straight pipe section 31, flows through the contraction section 32 and the throat section 33, increases in flow speed, is fully mixed, and is further mixed through the expansion section 34 and then is sprayed forward. The symmetrically arranged gas mixing systems mutually collide, so that the function of cooling the gas is further realized.

The gas demister comprises a supporting annular plate 51, a cyclone plate 52, a small cylinder 53, a cover plate 54, a gas outlet 55 and a liquid guide pipe 56. The small cylinder 53 is a round cylinder, the axis is vertical, the cover plate 54 is horizontally fixedly connected to the top end of the small cylinder 53, the axis of the gas outlet 55 is the same as that of the small cylinder 53, and the gas outlet 55 is fixedly connected to the cover plate 54 and extends into the small cylinder 53. The supporting ring plate 51 is horizontally fixedly connected to the inner wall of the lower part of the small cylinder 53, and the cyclone plate 52 is fixedly connected to the upper surface of the supporting ring plate 51. The liquid guide pipe 56 is vertically arranged and is made of a seamless steel pipe, the top end of the liquid guide pipe 56 is connected with the supporting annular plate 51, the bottom end of the liquid guide pipe extends into the bottom of the cylinder 11, and the liquid guide pipe 56 is positioned between the cyclone plate 52 and the small cylinder 53.

After the fog drops are carried in the gas and enter the gas demisting device, the gas is whirled to the small cylinder 53 by the inertia of the whirl plate 52, and ascends along the small cylinder 53, finally enters the annular space of the small cylinder 53 and the gas outlet 55, and the gas flows downwards and enters the desulfurizing tower through the gas outlet 55. The liquid drops in the gas flow downwards on the inner wall of the small cylinder 53 by gravity, enter the annular gap between the swirl plate 52 and the small cylinder 53, flow into the cylinder 11 along the liquid guide pipe 56, and are recycled.

The working principle and working process of the utility model are as follows:

The spray liquid enters the cylinder 11 through the spray liquid inlet 41, enters the pump 45 and the cooler 46 through the spray liquid outlet 42, enters the spray pipe 43 after being cooled to about 28 ℃, enters the spray head 44 through the pipeline, and is sprayed for circulation operation. The circulating spray liquid is replenished by means of a partial renewal, with the excess spray liquid being fed to the tank section unit via the vent 15 for further treatment.

The gas is mixed with atomized spray liquid in the spray liquid nozzle 44 in the straight pipe section 31, flows through the contraction section 32 and the throat section 33, flows at an increased flow speed, is fully mixed, flows through the expansion section 34, is further mixed and then is sprayed forwards, enters an impact area, forms an impact surface in the middle of the gas cooler, forms an impact area with high turbulence and enhanced mass transfer, and completes the main gas-liquid absorption reaction in the impact area. The very high relative velocity between the tiny droplets of the sprayed liquid and the gas in the area of the impact surface can be achieved, forming a highly turbulent impact zone. The liquid phase is a disperse phase system, and shearing force is generated by collision among the droplets or between the droplets to cause the droplets to be broken, so that the surface area of the droplets is increased, and the mass transfer rate is increased; the jets impinge on each other, creating strong radial and axial turbulence velocity components, which enhance the inter-phase transfer of the cooling process, and thus good mixing can be achieved in the impingement zone, thereby accelerating the cooling process.

After entering a gas demister, mist drops are entrained in cooled gas, the gas is whirled towards the small cylinder 53 by the inertia of the whirl plate 52, the gas ascends along the small cylinder 53, finally enters the annular space between the small cylinder 53 and the gas outlet 55, the gas flows downwards, and enters the desulfurizing tower through the gas outlet 55. The liquid drops in the gas flow downwards on the inner wall of the small cylinder 53 by gravity, enter the annular gap between the swirl plate 52 and the small cylinder 53, flow into the cylinder 11 along the liquid guide pipe 56, and are recycled.

The utility model accelerates the cooling process, has good cooling effect, is not easy to be blocked, has simple structure, reliable operation and low investment.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. A gas cooler, characterized by:

Comprises a body, a gas distribution device, a spraying device, a gas mixing device and a gas defogging device;

The body is of a horizontal cylinder structure;

The gas distribution device comprises a gas inlet, wherein the gas inlet is connected with a gas main pipe, the gas main pipe is divided into two gas branch pipes, and the two gas branch pipes are positioned at two sides of the body;

The gas mixing devices are symmetrically arranged, one end of each gas mixing device is connected with each gas branch pipe, and the other end of each gas mixing device extends into the body;

the spray head of the spraying device is arranged in the gas mixing device, and after the gas and the spraying liquid are mixed in the gas mixing device, the gas and the spraying liquid are mutually impacted and sprayed;

The gas demisting device comprises a vertically arranged gas outlet, the gas outlet is connected with the body, and the gas demisting device is provided with a cyclone plate for removing fog drops entrained in gas.

2. A gas cooler according to claim 1, characterized in that:

The body comprises a cylinder body and sealing heads, wherein the cylinder body is a cylinder, the axis is horizontal, and the sealing heads are fixedly connected to two sides of the cylinder body.

3. A gas cooler according to claim 1, characterized in that:

The gas distribution device comprises a gas main pipe, a gas branch pipe and a gas inlet;

The gas main pipe is horizontally and longitudinally arranged, the gas inlet is horizontally and transversely arranged, and the gas inlet is vertically connected with the middle part of the gas main pipe; the gas branch pipes are horizontally and transversely arranged and are vertically connected with the two ends of the gas main pipe.

4. A gas cooler according to claim 1, characterized in that:

The gas mixing device is of a tubular structure and is divided into a straight pipe section, a contraction section, a throat section and an expansion section; the straight pipe section is connected with the gas branch pipe, and the spray head is arranged in the straight pipe section.

5. A gas cooler according to claim 1, characterized in that:

The plurality of gas mixing devices are horizontally arranged and distributed on the gas branch pipes in a row, and the gas mixing devices of the two gas branch pipes are arranged in a face-to-face one-to-one correspondence manner.

6. A gas cooler according to claim 1, characterized in that:

The spraying device comprises a spraying liquid inlet, a spraying liquid outlet, a spraying pipe and a spray head; the spraying liquid inlet is fixedly connected to the top of the body, and the spraying liquid outlet is fixedly connected to the bottom of the body; the spray pipe is connected with the spray head pipeline, and the spray liquid outlet is connected with the spray pipe pipeline.

7. A gas cooler according to claim 6, wherein:

And a cooler and a pump are arranged on a pipeline connected with the spray liquid outlet and the spray pipe.

8. A gas cooler according to claim 1, characterized in that:

The gas demisting device comprises a supporting annular plate, a cyclone plate, a small cylinder, a cover plate, a gas outlet and a liquid guide pipe;

The axis of the small cylinder is vertical and fixedly connected to the top of the body, the cover plate is horizontally fixedly connected to the top end of the small cylinder, the axis of the gas outlet is the same as the axis of the small cylinder, and the gas outlet is fixedly connected to the cover plate;

the support ring plate is horizontally fixedly connected in the small cylinder body, and the cyclone plate is fixedly connected on the support ring plate;