CN204495077U - A kind of high-temperature calcination stove helical form petroleum coke cooling jacket - Google Patents

Abstract

The utility model provides a spiral petroleum coke cooling water jacket for a high-temperature calciner, which includes a cooling water jacket body. The cooling water jacket body is composed of spirally arranged cooling water pipes. The walls of the tubes are close together without gaps. The bottom of the cooling water tube is provided with a cooling medium inlet, and the top is provided with a cooling medium outlet. The cylindrical or conical cooling water jacket is provided with an insulation layer. The utility model can adapt to the discharge cooling of petroleum coke after calcination at a high temperature of 1600 degrees Celsius. The spiral cooling pipe is directly wound into a cylindrical or cone-shaped cooling water jacket. The petroleum coke is in direct contact with the cooling pipe, and the heat exchange is rapid. The cooling effect is good, and there is an insulation layer on the outer wall of the cooling water jacket. The insulation layer effectively prevents the outside world from exchanging heat through the outer part of the cooling water jacket. The heat loss is small, and the heat generated can be used for subsequent energy reuse. The cooling effect It is 1.5~2.5 times of the traditional cooling water jacket.

Description

Spiral petroleum coke cooling water jacket for high temperature calciner

technical field

The utility model relates to the field of energy science and technology, in particular to a petrochemical equipment, in particular to a spiral petroleum coke cooling water jacket for a high-temperature calciner.

Background technique

At present, the calcination furnace is a common equipment for calcination of petroleum coke. The calcination temperature is about 1300 degrees Celsius. If the calcined petroleum coke is cooled with the furnace and the petroleum coke is taken out after cooling, the work efficiency is too low. How to use the cooling device to reduce the high temperature state? Petroleum coke discharge is one of the effective ways to improve production efficiency.

A Chinese patent has disclosed a utility model patent with the publication number CN 201261768Y and the name "Cooling Water Jacket for Petroleum Coke Tank Calciner". The actual use of this patent found that the cooling effect is not good, and the cooling water flow is short, the flow rate is fast, and the heat The absorption effect is not good. In addition, there is no insulation facility outside the cooling water jacket, and the equipment exchanges heat with the outside world. Especially in the hot summer, the cooling effect is poor.

Contents of the invention

The technical problem to be solved by the utility model is to provide a spiral petroleum coke cooling water jacket for a high-temperature calciner, which can adapt to the high-temperature calcined petroleum coke at 1600 degrees Celsius. The output is cooled, the petroleum coke passes through the cooling water jacket and absorbs heat through the cooling water jacket, the heat exchange is rapid, and the cooling effect is good. There are four layers of annular cavities in the cooling water jacket, and there are small holes in the annular cavities. The difference in the positional relationship of the small holes makes use of the entire annular cavity filled with cooling water to avoid steam generation inside, reduce the corrosion of the cooling water jacket by high-temperature steam, and improve the service life of the cooling water jacket. The cooling effect is 1.5 times that of the traditional cooling water jacket. ~2.5 times.

The technical solution of the utility model is to provide the following petroleum coke cooling water jacket for high-temperature calciner, which is composed of an inner wall and an outer wall, and an annular cavity is provided between the inner wall and the outer wall, and the upper ends of the inner wall and the outer wall and the lower end are airtightly connected, the bottom of the outer wall is provided with a water inlet connected to the annular cavity, the top of the outer wall is provided with a water outlet connected to the annular cavity, and the annular cavity is provided with three layers of partitions, from bottom to top The first layer of partitions, the second layer of partitions and the third layer of partitions are respectively in turn, and the three layers of partitions divide the annular cavity into four independent and airtight annular cavities, wherein the first layer of partitions is far away from One end of the water inlet is provided with a small hole connecting the upper and lower annular cavities of the first layer of the partition, and the end of the second layer of the partition near the water inlet is provided with a small hole connecting the upper and lower annular cavities of the second layer of partition. The end of the third layer of dividing plate away from the water inlet is provided with a small hole communicating with the upper and lower layers of the first layer of dividing plate and the annular cavities.

Preferably, the water inlet and the water outlet are located on the same side. Adopting the technical scheme, the structure is simple, and the use is convenient, especially in the installation process, it is convenient to collect cooling water.

Preferably, the inner wall is a tapered tube with a large opening at the top and a small opening at the bottom; the outer wall is a tapered tube with a large opening at the top and a small opening at the bottom. Adopting this technical scheme, using the tapered sleeve, the structure is simple and easy to manufacture, and the structure with a large top opening and a small bottom opening is adopted, and the cooling effect is better, which is more than twice that of a common cooling water jacket.

Preferably, the tapered tube formed by the inner wall is a material circulation channel. The adoption of this technical solution facilitates the cooling of materials, and at the same time adopts a structure with a large opening at the top and a small opening at the bottom, which hinders the circulation of materials to a certain extent, reduces the circulation speed of materials in the cooling water jacket, and increases the flow rate of materials in the cooling water jacket. Heat exchange time, better heat absorption, higher energy utilization.

Preferably, the three-layer partitions are arranged horizontally, and the distances between two adjacent partitions are equal. The adoption of the technical solution is convenient for manufacture, and in addition, the uniformity of water volume in each annular cavity is guaranteed to realize heat balance.

Preferably, protruding heat dissipation ribs are provided on the top and bottom side walls of the outer wall. By adopting the technical solution, the strength of the cooling water jacket is improved, and at the same time, the heat dissipation area is increased by utilizing heat dissipation.

Preferably, the diameter of the water inlet pipe is 50 mm, the diameter of the water outlet pipe is 80 mm, and the diameter of the small hole is 120 mm. Adopting the technical scheme, the structure is simple, the manufacture is convenient, the inner flowing water is more ideal, and the heat absorption is more sufficient.

The beneficial effects of adopting the utility model: the cooling water jacket can adapt to the cooling of petroleum coke after high-temperature calcination at 1600 degrees Celsius. The petroleum coke passes through the cooling water jacket and absorbs heat through the cooling water jacket. The heat exchange is rapid and the cooling effect is good. Four layers of annular cavities are set in the cooling water jacket, and there are small holes in the annular cavities. Using the difference in the positional relationship of the small holes, the entire annular cavity is filled with cooling water to avoid steam generation inside and reduce the impact of high temperature steam on the cooling water jacket. The corrosion of the cooling water jacket improves the service life of the cooling water jacket, and the cooling effect is 1.5~2.5 times that of the traditional cooling water jacket.

Description of drawings

Fig. 1 is a schematic diagram of a half-section structure of a cylindrical cooling water jacket of the present invention.

Fig. 2 is a left sectional view of Fig. 1 .

Fig. 3 is a right side sectional view of Fig. 1 .

As shown in the figure: 1. Inner wall, 2. Outer wall, 3. Annular cavity, 4. Water inlet, 5. Water outlet, 6. The first layer of partitions, 7. The second layer of partitions, 8. The third layer Separator, 9, small hole, 10, circulation channel, 11, heat dissipation rib.

Detailed ways

For the convenience of explanation, the spiral petroleum coke cooling water jacket for the high temperature calciner of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 3, a petroleum coke cooling water jacket for a high-temperature calciner is composed of an inner wall 1 and an outer wall 2, and an annular cavity 3 is provided between the inner wall 1 and the outside, and the inner wall 1 It is airtightly connected with the upper end and the lower end of the outer wall 2, the bottom of the outer wall 2 is provided with a water inlet 4 communicating with the annular cavity 3, the top of the outer wall 2 is provided with a water outlet 5 communicating with the annular cavity 3, and the annular cavity 3 is provided with three layers of partitions, which are respectively the first layer of partitions 6, the second layer of partitions 7 and the third layer of partitions 8 from bottom to top. The three layers of partitions divide the annular cavity 3 into four An independent and airtight annular cavity 3, wherein the end of the first layer of partition 6 away from the water inlet 4 is provided with a small hole 9 connecting the upper and lower layers of the first layer of partition 6, and the second layer of partition 7 One end close to the water inlet 4 is provided with a small hole 9 connecting the upper and lower layers of the annular cavity 3 of the second layer of dividing plate 7, and the end of the third layer of dividing plate 8 far away from the water inlet 4 is provided with a hole 9 connecting the upper and lower layers of the first layer of dividing plate 6. The small hole 9 of the layer annular cavity 3, the water inlet 4 and the water outlet 5 are located on the same side, the inner wall 1 is a tapered tube with a large opening at the top and a small opening at the bottom, and the outer wall 2 has a large opening at the top and a small opening at the bottom The tapered pipe formed by the inner wall 1 is a material circulation channel 10, the three-layer partitions are all arranged horizontally, and the distances between two adjacent partitions are equal, and the top and bottom of the outer wall 2 Protruding heat dissipation ribs 11 are provided on the side walls, the diameter of the water inlet pipe is 50 mm, the diameter of the water outlet pipe is 80 mm, and the diameter of the small hole 9 is 120 mm.

The cooling water jacket can adapt to the cooling of petroleum coke after calcination at a high temperature of 1600 degrees Celsius. The petroleum coke passes through the cooling water jacket and absorbs heat through the cooling water jacket. The heat exchange is rapid and the cooling effect is good. Four layers are set in the cooling water jacket Annular cavity, and there are small holes in the annular cavity. Using the difference in the positional relationship of the small holes, the entire annular cavity is filled with cooling water to avoid internal steam generation, reduce the corrosion of the cooling water jacket by high-temperature steam, and improve cooling. The service life of the water jacket and the cooling effect are 1.5~2.5 times that of the traditional cooling water jacket.

In the above embodiments, the best implementation mode of the present utility model has been described, obviously, many changes can still be made under the inventive concept of the present utility model. Here, it should be explained that any changes made under the inventive concept of the present utility model will fall within the protection scope of the present utility model.

Claims (6)

1. a kind of high-temperature calcination stove helical form petroleum coke cooling jacket, comprises cooling jacket body (1), it is characterized in that: the cooling water pipe (2) that described cooling jacket body (1) is arranged by helical form is formed.

2. high-temperature calcination stove helical form petroleum coke cooling jacket according to claim 1, is characterized in that: tube wall laminating between the adjacent cooling water pipe (2) of cooling water pipe (2) that helical form is arranged, and seamless.

3. high-temperature calcination stove helical form petroleum coke cooling jacket according to claim 2, is characterized in that: the cooling water pipe (2) of described screw arrangement is in straight-tube shape or taper.

4. high-temperature calcination stove helical form petroleum coke cooling jacket according to claim 1, is characterized in that: described cooling water pipe (2) bottom is provided with cooling medium inlet (3), and top is provided with cooling medium outlet (4).

5. high-temperature calcination stove helical form petroleum coke cooling jacket according to claim 3, is characterized in that: the cooling jacket outside of described tubular or taper is provided with heat-insulation layer (5).

6. high-temperature calcination stove helical form petroleum coke cooling jacket according to claim 3, is characterized in that: the cone-apex angle angle of the cooling jacket of described taper is 10 ~ 30 degree.