CN213983495U

CN213983495U - Outer barrel split type coke oven crude gas waste heat utilization device with filling layer

Info

Publication number: CN213983495U
Application number: CN202022172368.XU
Authority: CN
Inventors: 郑翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-08-17
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a split type coke oven raw coke oven gas waste heat utilization equipment of urceolus with filling layer, the periphery side of barrel in outer barrel cover is established, the periphery side of barrel including heat transfer spiral pipe winding sets up, it holds the chamber to be provided with the annular between interior barrel and the outer barrel, the annular holds the intracavity and is provided with the filling layer, the upper end at interior barrel and outer barrel is fixed to the gas outlet flange, the lower extreme at interior barrel and outer barrel is fixed to the air inlet flange, the lateral wall lower extreme of outer barrel is provided with the feedwater import, the lateral wall upper end of outer barrel is provided with the steam-water mixture export, feedwater import and steam-water mixture export all communicate with the heat transfer spiral pipe, outer barrel is split type structure. The effect is as follows: the outer cylinder body is of a split structure, so that the convenience of installation and maintenance is improved; by arranging the filling layer, the heat loss generated in the heat exchange process is reduced; the heat exchange efficiency is improved, and the occupied space of the device is reduced.

Description

Outer barrel split type coke oven crude gas waste heat utilization device with filling layer

Technical Field

The utility model relates to a coke oven waste heat utilization equipment technical field, concretely relates to split type coke oven raw coke oven gas waste heat utilization equipment of urceolus with filling layer.

Background

The temperature of the raw coke oven gas reaches 800 ℃ during the normal production of the coke oven, the problems of coking of heat exchange surfaces and incapability of effectively operating heat exchange equipment for a long time generally exist in some heat exchange devices of the raw coke oven gas on the market at present, meanwhile, the pressure bearing capacity of the heat exchange equipment is limited, steam below 0.8MPa can be produced, and the hidden troubles that medium and high pressure steam can not be produced and cold source water of the equipment leaks into a hearth of the coke oven exist in the existing raw coke oven gas waste heat utilization device.

The defects of the prior art are mainly as follows:

1. the outer cylinder body is of an integrated structure, so that the installation and the maintenance are inconvenient;

2. the raw gas in the inner barrel flows at an excessively high speed, and the heat exchange efficiency is low, so that the size of the whole waste heat utilization equipment is too large, and the manufacturing cost is too high.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides an outer cylinder split type coke oven raw coke oven gas waste heat utilization device with a filling layer to solve the above problems in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

according to the first aspect of the utility model, the utility model relates to an outer cylinder split type coke oven crude gas waste heat utilization device with a filling layer, which comprises an inner cylinder, an outer cylinder, a gas outlet flange, a gas inlet flange, a water supply inlet, a heat exchange spiral pipe, a steam-water mixture outlet and a filling layer; the outer barrel body is sleeved on the outer peripheral side of the inner barrel body, the heat exchange spiral pipe is wound on the outer peripheral side of the inner barrel body, an annular containing cavity is formed between the inner barrel body and the outer barrel body, the filling layer is arranged in the annular containing cavity, the air outlet flange is fixed to the upper ends of the inner barrel body and the outer barrel body, the air inlet flange is fixed to the lower end of the inner barrel body and the lower end of the outer barrel body, the lower end of the side wall of the outer barrel body is provided with the water supply inlet, the upper end of the side wall of the outer barrel body is provided with the steam-water mixture outlet, the water supply inlet and the steam-water mixture outlet are communicated with the heat exchange spiral pipe, and the outer barrel body is of a split structure.

Furthermore, the outer cylinder body comprises an upper pipe section, a middle pipe section and a lower pipe section, the upper end of the upper pipe section is fixedly connected with the air outlet flange, the upper end of the middle pipe section is inserted into the inner side wall of the lower end of the upper pipe section, the upper end of the lower pipe section is inserted into the inner side wall of the lower end of the middle pipe section, and the lower end of the lower pipe section is fixed on the air inlet flange.

The pipe joint structure further comprises a locking bolt, wherein the locking bolt penetrates through the joint of the upper pipe section and the middle pipe section, and the locking bolt also penetrates through the joint of the middle pipe section and the lower pipe section.

Further, the filling layer comprises a high-temperature-resistant corrosion-resistant layer and a heat-insulating layer, the high-temperature-resistant corrosion-resistant layer is sleeved on the outer peripheral side of the heat exchange spiral pipe, the heat-insulating layer is sleeved on the outer peripheral side of the high-temperature-resistant corrosion-resistant layer, and the outer cylinder body is sleeved on the outer peripheral side of the heat-insulating layer.

Further, the heat exchange device further comprises a limiting layer, the limiting layer is arranged between the high-temperature-resistant corrosion-resistant layer and the inner cylinder, a spiral pipeline is arranged on the outer side wall of the limiting layer, and the heat exchange spiral pipe is embedded in the spiral pipeline.

Further, still include a plurality of heat transfer deflector, it is a plurality of the heat transfer deflector divide into two sets of relative settings, and is a plurality of the heat transfer deflector slope sets up in turn in proper order on the inside wall of interior barrel, the inside water storage chamber that has of heat transfer deflector, the inside water storage chamber of heat transfer deflector with the heat transfer spiral pipe intercommunication.

Further, adjacent heat transfer deflector sets up respectively the both sides of interior barrel inside wall, the heat transfer deflector all inclines upward the setting.

Furthermore, the ends, away from the inner side wall of the inner cylinder, of the adjacent heat exchange guide plates are mutually overlapped.

Furthermore, a plurality of air holes are formed in the heat exchange guide plate, the air holes are uniformly formed in the heat exchange guide plate, and the air holes are round holes.

Further, the heat exchange guide plates are all in a semicircular hollow plate-shaped structure, and an included angle between each heat exchange guide plate and the horizontal plane is 30-60 degrees.

The utility model has the advantages of as follows: by the outer barrel split type coke oven raw gas waste heat utilization device with the filling layer, the convenience of installation and maintenance is improved by arranging the outer barrel into a split type structure; by arranging the filling layer, the heat loss generated in the heat exchange process is reduced; the heat exchange guide plate is arranged on the inner side of the inner cylinder, so that the path for the raw coke oven gas to flow is obviously improved under the same height, the heat exchange efficiency is improved, and the occupied space of the device is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a cross-sectional view of a raw coke oven gas waste heat utilization device with a split type outer cylinder coke oven with a filling layer according to some embodiments of the present invention.

Fig. 2 is a structural diagram of an outer cylinder body of the outer cylinder split type coke oven crude gas waste heat utilization device with a filling layer according to some embodiments of the present invention.

Fig. 3 is a cross-sectional view of a raw coke oven gas waste heat utilization device with a split type outer barrel coke oven and a filling layer according to some embodiments of the present invention.

Fig. 4 is a cross-sectional view of a raw coke oven gas waste heat utilization device with a split type outer cylinder coke oven with a filling layer according to other embodiments of the present invention.

Fig. 5 is a cross-sectional view of a raw coke oven gas waste heat utilization device with a split type outer barrel coke oven and a filling layer according to still other embodiments of the present invention.

FIG. 6 is a top view of the split type raw coke oven gas waste heat utilization device with the outer cylinder and the filling layer provided in FIG. 5.

In the figure: 1. the heat exchange device comprises an inner cylinder body, 2, an outer cylinder body, 3, an air outlet flange, 4, an air inlet flange, 5, a water supply inlet, 6, a heat exchange spiral pipe, 7, a steam-water mixture outlet, 8, a limiting layer, 9, a high-temperature-resistant corrosion-resistant layer, 10, a heat-insulating layer, 11, an upper pipe section, 12, a middle pipe section, 13, a lower pipe section, 14, a locking bolt, 15, a sealing ring groove, 16, a heat exchange guide plate, 17, air holes, 18 and a filling layer.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1 to 3, the device for utilizing the raw coke oven gas waste heat of the outer cylinder split type coke oven with the filling layer in the embodiment comprises an inner cylinder 1, an outer cylinder 2, an air outlet flange 3, an air inlet flange 4, a water supply inlet 5, a heat exchange spiral pipe 6, a steam-water mixture outlet 7 and a filling layer 18; the periphery side of barrel 1 in the cover is established to outer barrel 2 cover, the periphery side of barrel 1 including heat transfer spiral pipe 6 winding sets up, it holds the chamber to be provided with the annular between interior barrel 1 and the outer barrel 2, the annular holds the intracavity and is provided with filling layer 18, gas outlet flange 3 is fixed in the upper end of barrel 1 and outer barrel 2, air inlet flange 4 is fixed at the lower extreme of barrel 1 and outer barrel 2 in, the lateral wall lower extreme of outer barrel 2 is provided with water supply inlet 5, the lateral wall upper end of outer barrel 2 is provided with steam-water mixture export 7, water supply inlet 5 and steam-water mixture export 7 all communicate with heat transfer spiral pipe 6, outer barrel 2 is split type structure.

The technical effect that this embodiment reaches does: according to the outer barrel split type coke oven raw gas waste heat utilization device with the filling layer, the outer barrel 2 is of a split type structure, so that the convenience of installation and maintenance is improved; by providing the filling layer 18, the heat loss generated in the heat exchange process is reduced.

Example 2

As shown in fig. 2, the split type coke oven crude gas waste heat utilization device with outer cylinder in this embodiment includes all the technical features of embodiment 1, in addition, the outer cylinder 2 includes an upper pipe section 11, a middle pipe section 12 and a lower pipe section 13, the upper end of the upper pipe section 11 is fixedly connected with the gas outlet flange 3, the upper end of the middle pipe section 12 is inserted into the inner side wall of the lower end of the upper pipe section 11, the upper end of the lower pipe section 13 is inserted into the inner side wall of the lower end of the middle pipe section 12, and the lower end of the lower pipe section 13 is fixed on the gas inlet flange 4.

Optionally, the pipe fitting further comprises a locking bolt 14, the locking bolt 14 is arranged at the joint of the upper pipe section 11 and the middle pipe section 12 in a penetrating manner, the end of the locking bolt 14 abuts against the outer side wall of the upper pipe section 11, and the outer side wall of the joint of the middle pipe section 12 and the upper pipe section 11 is smaller than the inner side wall of the upper pipe section 11; a locking bolt 14 is also arranged at the joint of the middle pipe section 12 and the lower pipe section 13 in a penetrating way, the end part of the locking bolt 14 abuts against the outer side wall of the middle pipe section 12, and the outer side wall of the joint of the lower pipe section 13 and the middle pipe section 12 is smaller than the inner side wall of the middle pipe section 12.

The beneficial effects in this embodiment are: the outer cylinder 2 formed by the upper pipe section 11, the middle pipe section 12 and the lower pipe section 13 is arranged, so that the processing difficulty of the outer cylinder 2 is obviously reduced, the installation convenience is improved, and the internal structure of the outer cylinder 2 is convenient to overhaul; through setting up locking bolt 14, avoided the instability between the split type outer barrel 2, convenient to detach and maintain.

Example 3

As shown in fig. 1, the device for utilizing waste heat of raw coke oven gas in a split type external-cylinder coke oven with a filling layer in the present embodiment includes all the technical features of embodiment 1, in addition, the filling layer 18 includes a high temperature resistant corrosion-resistant layer 9 and a heat-insulating layer 10, the high temperature resistant corrosion-resistant layer 9 is sleeved on the outer circumferential side of the heat exchange spiral tube 6, the heat-insulating layer 10 is sleeved on the outer circumferential side of the high temperature resistant corrosion-resistant layer 9, and the external cylinder 2 is sleeved on the outer circumferential side of the heat-insulating layer 10; the high-temperature-resistant and corrosion-resistant layer 9 is arranged, so that the corrosion resistance and the high-temperature resistance are improved; through setting up heat preservation 10, improved the heat preservation effect, improved the utilization ratio of waste heat.

Optionally, still include stop layer 8, stop layer 8 sets up between high temperature resistant corrosion-resistant layer 9 and interior barrel 1, and helical tube has been seted up to stop layer 8's lateral wall, and heat transfer spiral pipe 6 inlays to be established in helical tube, and is preferred, and the pitch of heat transfer spiral pipe 6 equals, inlays to be established in helical tube through setting up heat transfer spiral pipe 6, has avoided the position of heat transfer spiral pipe 6 to remove in the use, has avoided heat transfer spiral pipe 6's damage simultaneously, has improved life.

Example 4

As shown in fig. 4, the split type coke oven raw gas waste heat utilization device with the outer cylinder in the embodiment includes all the technical features in embodiment 1, in addition, the split type coke oven raw gas waste heat utilization device further includes a plurality of heat exchange guide plates 16, the plurality of heat exchange guide plates 16 are divided into two sets which are oppositely arranged, the plurality of heat exchange guide plates 16 are sequentially and alternately arranged on the inner side wall of the inner cylinder 1 in an inclined manner, a water storage cavity is formed inside each heat exchange guide plate 16, the water storage cavity inside each heat exchange guide plate 16 is communicated with the heat exchange spiral pipe 6, and by arranging the heat exchange guide plates 16, the split type coke oven raw gas waste heat utilization device can play a role in guiding the raw gas of the coke oven, the heat exchange path is increased, and the heat exchange efficiency is improved.

Optionally, adjacent heat exchange guide plates 16 are respectively arranged on two sides of the inner side wall of the inner cylinder 1, the heat exchange guide plates 16 are all obliquely and upwards arranged, and the heat exchange guide plates 16 are all obliquely and upwards arranged, so that the smoothness of the raw coke oven gas flowing in the inner cylinder 1 is improved.

Optionally, as shown in fig. 5 and 6, the ends of the adjacent heat exchange guide plates 16 departing from the inner side wall of the inner cylinder 1 are overlapped with each other, and through the arrangement, the coke oven crude gas flows in the inner cylinder 1 to form a wavy linear structure, so that the heat exchange utilization rate is improved.

Optionally, as shown in fig. 5, a plurality of air holes 17 are formed in the heat exchange guide plate 16, the plurality of air holes 17 are uniformly formed in the heat exchange guide plate 16, and the air holes 17 are circular holes.

Optionally, the heat exchange guide plates 16 are all in a semicircular hollow plate-shaped structure, and an included angle between the heat exchange guide plates 16 and the horizontal plane is 30-60 degrees.

The beneficial effects in this embodiment are: the heat exchange guide plate 16 is arranged on the inner side of the inner cylinder body 1, so that the path of the raw coke oven gas circulation is obviously improved under the same height, the heat exchange efficiency is improved, and the occupied space of the device is reduced.

Example 5

As shown in fig. 3, the device for utilizing the waste heat of raw coke oven gas with split outer cylinder coke oven having a filling layer in the present embodiment includes all the technical features of embodiment 1, in addition, a sealing ring groove 15 is formed on both the gas outlet flange 3 and the gas inlet flange 4, the sealing ring groove 15 is a groove with a semicircular cross section, and a sealing ring is arranged in the sealing ring groove 15.

The beneficial effects in this embodiment are: by arranging the sealing ring groove 15 and arranging the sealing rings in the sealing ring groove, the sealing performance of the joints of the air outlet flange 3 and the air inlet flange 4 and other structures is obviously improved.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

Claims

1. An outer cylinder split type coke oven raw coke oven gas waste heat utilization device with a filling layer is characterized by comprising an inner cylinder body (1), an outer cylinder body (2), an air outlet flange (3), an air inlet flange (4), a water supply inlet (5), a heat exchange spiral pipe (6), a steam-water mixture outlet (7) and the filling layer (18); the outer cylinder body (2) is sleeved on the outer peripheral side of the inner cylinder body (1), the heat exchange spiral pipe (6) is wound on the outer peripheral side of the inner cylinder body (1), an annular accommodating cavity is arranged between the inner cylinder body (1) and the outer cylinder body (2), the filling layer (18) is arranged in the annular accommodating cavity, the air outlet flange (3) is fixed at the upper ends of the inner cylinder body (1) and the outer cylinder body (2), the air inlet flange (4) is fixed at the lower ends of the inner cylinder body (1) and the outer cylinder body (2), the water supply inlet (5) is arranged at the lower end of the side wall of the outer cylinder body (2), the steam-water mixture outlet (7) is arranged at the upper end of the side wall of the outer cylinder body (2), and the water supply inlet (5) and the steam-water mixture outlet (7) are both communicated with the heat exchange spiral pipe (6), the outer cylinder body (2) is of a split structure.

2. The split type coke oven raw gas waste heat utilization device with the filling layer and the outer barrel is characterized in that the outer barrel (2) comprises an upper pipe section (11), a middle pipe section (12) and a lower pipe section (13), the upper end of the upper pipe section (11) is fixedly connected with the gas outlet flange (3), the upper end of the middle pipe section (12) is inserted into the inner side wall of the lower end of the upper pipe section (11), the upper end of the lower pipe section (13) is inserted into the inner side wall of the lower end of the middle pipe section (12), and the lower end of the lower pipe section (13) is fixed on the gas inlet flange (4).

3. The split type coke oven crude gas waste heat utilization device with the filling layer and the outer cylinder is characterized by further comprising a locking bolt (14), the locking bolt (14) is arranged at the joint of the upper pipe section (11) and the middle pipe section (12) in a penetrating mode, and the locking bolt (14) is arranged at the joint of the middle pipe section (12) and the lower pipe section (13) in a penetrating mode.

4. The split type coke oven crude gas waste heat utilization device with the filling layer provided by claim 1 is characterized in that the filling layer (18) comprises a high-temperature-resistant corrosion-resistant layer (9) and a heat preservation layer (10), the high-temperature-resistant corrosion-resistant layer (9) is sleeved on the outer peripheral side of the heat exchange spiral pipe (6), the heat preservation layer (10) is sleeved on the outer peripheral side of the high-temperature-resistant corrosion-resistant layer (9), and the outer cylinder (2) is sleeved on the outer peripheral side of the heat preservation layer (10).

5. The split type coke oven crude gas waste heat utilization device with the outer cylinder and the filling layer as claimed in claim 4, further comprising a limiting layer (8), wherein the limiting layer (8) is arranged between the high temperature and corrosion resistant layer (9) and the inner cylinder (1), a spiral pipeline is arranged on the outer side wall of the limiting layer (8), and the heat exchange spiral pipe (6) is embedded in the spiral pipeline.

6. The split type coke oven raw gas waste heat utilization device with the outer cylinder and the filling layer as claimed in claim 1, further comprising a plurality of heat exchange guide plates (16), wherein the plurality of heat exchange guide plates (16) are divided into two groups which are oppositely arranged, the plurality of heat exchange guide plates (16) are sequentially and alternately obliquely arranged on the inner side wall of the inner cylinder (1), a water storage cavity is formed in the heat exchange guide plates (16), and the water storage cavity in the heat exchange guide plates (16) is communicated with the heat exchange spiral pipe (6).

7. The split type coke oven raw gas waste heat utilization device with the outer cylinder and the filling layer as claimed in claim 6, wherein the adjacent heat exchange guide plates (16) are respectively arranged on two sides of the inner side wall of the inner cylinder (1), and the heat exchange guide plates (16) are arranged obliquely upwards.

8. The split type coke oven raw gas waste heat utilization device with the outer cylinder and the filling layer as claimed in claim 7, characterized in that the ends of the adjacent heat exchange guide plates (16) departing from the inner side wall of the inner cylinder (1) are overlapped.

9. The split type coke oven crude gas waste heat utilization device with the outer cylinder and the filling layer as claimed in claim 8, wherein a plurality of air holes (17) are formed in the heat exchange guide plate (16), the plurality of air holes (17) are uniformly formed in the heat exchange guide plate (16), and the air holes (17) are circular holes.

10. The split type coke oven crude gas waste heat utilization device with the outer cylinder and the filling layer as claimed in claim 7, wherein the heat exchange guide plates (16) are all in a semicircular hollow plate-shaped structure, and an included angle between the heat exchange guide plates (16) and a horizontal plane is 30-60 degrees.