CN213363422U

CN213363422U - Ethylbenzene dehydrogenation waste heat recovery device

Info

Publication number: CN213363422U
Application number: CN202021811766.5U
Authority: CN
Inventors: 李曙光; 吉瑞光; 姚玮洁; 曹蕾
Original assignee: Xuyang Engineering Co ltd
Current assignee: Xuyang Engineering Co ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2021-06-04
Anticipated expiration: 2030-08-26

Abstract

The utility model relates to a technology heating furnace technical field discloses an ethylbenzene dehydrogenation waste heat recovery device, heating furnace body right side wall top and diapire right side are provided with tobacco pipe and tuber pipe respectively, heating furnace body right side is provided with the heat recovery section of thick bamboo, the tuber pipe passes through branch pipe and heat recovery section of thick bamboo intercommunication, the shower nozzle that has the even array of a plurality of groups is run through to the heat recovery section of thick bamboo roof. The utility model discloses a be provided with shower nozzle and water tank, cooling water is carried to the accessible delivery pipe, and spray by the hot gas atomization that the shower nozzle orientation flowed through, atomizing spray water absorbs heat formation hot water in the steam, and by flowing to the heat recovery section of thick bamboo diapire on, so that the steam is arranged outward and arouses the workshop temperature too high, hot water is carried to the water tank in through nearly drain pipe simultaneously, supply with peripheral station hot water, the long drain pipe of accessible supplies with the station of further distance, realize the effective recycle of waste heat, reduce the required electric energy loss of hot water supply.

Description

Ethylbenzene dehydrogenation waste heat recovery device

Technical Field

The utility model relates to a technology heating furnace technical field specifically is an ethylbenzene dehydrogenation waste heat recovery device.

Background

The tubular heating furnace is a technological heating furnace used in petroleum refining, petrochemical industry, chemical industry and chemical fiber industry. Compared with a kettle type steam furnace, the tubular heating furnace has superior performance, meets the requirements of automation, continuity and large-scale of the modern petrochemical industry, and almost participates in various process flows. In the petroleum field, the energy consumption of a heating furnace accounts for about 35% of the total energy of oil refining, and the reduction of the energy consumption of the heating furnace has direct significance for reducing the energy consumption of the oil refining, so that the full utilization of waste heat recovery is a hotspot in the research of a tubular heating furnace, and in a waste heat recovery device, a waste heat recoverer has great influence on the waste heat recovery efficiency of the whole waste heat recovery device.

In implementing the present invention, the inventor finds that the following problems exist in the prior art and are not solved: the existing heating furnace does not have corresponding air cooling measures, and mostly adopts the mode of pulling a longer through pipe to be discharged to a region or a high place far away from a plant, so that the manufacturing cost and the maintenance cost are not applicable to a smaller heating furnace, the temperature of a station workshop plant is easily higher than the surrounding environment, and the problems of heat waste and the like are caused because hot air heat recovery measures are not provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ethylbenzene dehydrogenation waste heat recovery device, through being provided with shower nozzle and water tank, the cooling water is carried to the accessible delivery pipe, and spray towards the hot gas atomization that flows through by the shower nozzle, the atomizing spray water absorbs heat formation hot water in the steam, and by flowing to on the heat recovery section of thick bamboo diapire, in order to avoid the steam to arrange outward and arouse the workshop high temperature, hot water is carried to the water tank in through nearly drainage pipe simultaneously, supply with peripheral station hot water, the long-range station of pipe supply far away of accessible, realize the effective recycle of waste heat, reduce the required electric energy loss of hot water supply, the problem of proposing in the background art has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: an ethylbenzene dehydrogenation waste heat recovery device comprises a heating furnace body;

the heating furnace comprises a heating furnace body, a heat recovery cylinder, a near drainage pipe, a far drainage pipe, a water tank, a water outlet cover, a water inlet pipe, a water outlet cover, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe;

the air outlet hood is fixedly provided with a negative pressure pump at the top, the bottom of a through pipe on the right side of the negative pressure pump is communicated with an annular pipe, the inner side of the annular pipe is communicated with air suction heads of a plurality of groups of annular arrays, a through pipe on the left side of the negative pressure pump is communicated with a recharge pipe, and a metal thermometer penetrates through the right side of the top wall of the heat recovery barrel.

As an optimized implementation manner of the utility model, four edges and corners of heat recovery bobbin base portion all fix and are provided with branch, and the branch bottom mounting is provided with the blotter.

As a preferred embodiment of the present invention, the near drain pipe and the far drain pipe are both provided with valves.

As a preferred embodiment of the present invention, the right side of the heat recovery cylinder is fixedly provided with a blocking edge, and the blocking edge is in a ring shape.

As an embodiment of the present invention, the support of the negative pressure pump is penetrated by a bolt, and the bolt and the air outlet cover are screwed with a preset screw hole.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model relates to an ethylbenzene dehydrogenation waste heat recovery device, through being provided with shower nozzle and water tank, the cooling water is carried to the accessible delivery pipe, and spray towards the hot gas atomization that flows through by the shower nozzle, the atomizing spray water absorbs heat formation hot water in the steam, and by flowing to on the heat recovery section of thick bamboo diapire, it arouses the workshop high temperature to arrange outside in order to avoid the steam, hot water is carried to the water tank in through nearly drain pipe simultaneously, supply with peripheral station hot water, the drain pipe is far away supplied with the station of distance far away to the accessible, realize the effective recycle of waste heat, reduce the required electric energy loss of hot water supply.

2. The utility model relates to an ethylbenzene dehydrogenation waste heat recovery device, through being provided with metal thermometer and negative pressure pump, when the steam temperature was too high, the suction head suction of accessible annular tube steam not up to standard, by the recharge pipe of negative pressure pump with the high steam recharge of temperature to the heat recovery section of thick bamboo in to guarantee the complete of flue gas cooling, the metal thermometer is convenient for the staff and in time opens and close the negative pressure pump simultaneously.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of an ethylbenzene dehydrogenation waste heat recovery device according to the present invention;

FIG. 2 is a schematic diagram of a side view of a ring pipe portion of the waste heat recovery device for ethylbenzene dehydrogenation of the present invention;

fig. 3 is a side view partial structure schematic diagram of a heat recovery cylinder of the ethylbenzene dehydrogenation waste heat recovery device of the utility model.

In the figure: 1. a heating furnace body; 2. a smoke pipe; 3. an air duct; 4. a heat recovery cylinder; 5. a branch pipe; 6. a recharge pipe; 7. a water supply pipe; 8. a spray head; 9. a metal thermometer; 10. a negative pressure pump; 11. an air outlet cover; 12. an annular tube; 13. a strut; 14. a far drain pipe; 15. a near drain pipe; 16. a water tank; 17. a suction head; 18. and (6) blocking edges.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: an ethylbenzene dehydrogenation waste heat recovery device comprises a heating furnace body 1;

the heating furnace comprises a heating furnace body 1, and is characterized in that a smoke pipe 2 and a blast pipe 3 are respectively arranged on the top and the right side of the right wall of the heating furnace body 1, a heat recovery cylinder 4 is arranged on the right side of the heating furnace body 1, the blast pipe 3 is communicated with the heat recovery cylinder 4 through a branch pipe 5, a plurality of groups of uniformly arrayed spray heads 8 penetrate through the top wall of the heat recovery cylinder 4, a water supply pipe 7 is communicated with the tops of the spray heads 8, the left side and the right side of the bottom wall of the heat recovery cylinder 4 are respectively communicated with a near drainage pipe 15 and a far drainage pipe 14, a water tank 16 is arranged on the left side of the bottom of the heat recovery cylinder 4, the water tank 16 is positioned;

the fixed negative pressure pump 10 that is provided with in play fan housing 11 top, negative pressure pump 10 right side siphunculus bottom intercommunication is provided with annular tube 12, the inboard intercommunication of annular tube 12 is provided with the head 17 that induced drafts of a plurality of groups annular array, negative pressure pump 10 left side siphunculus intercommunication is provided with recharge tube 6, metal thermometer 9 has been run through on the top wall right side of heat recovery section of thick bamboo 4.

In the embodiment (as shown in fig. 1, 2 and 3), by providing the spray head 8 and the water tank 16, cooling water can be conveyed through the water supply pipe 7, and atomized and sprayed by the spray head 8 toward the flowing hot air, and the atomized and sprayed water absorbs heat in the hot air to form hot water, and flows onto the bottom wall of the heat recovery cylinder 4, so as to prevent the temperature of the workshop from being too high due to the discharge of the hot air, meanwhile, the hot water is conveyed into the water tank 16 through the near water discharge pipe 15, and is supplied to the hot water of the peripheral stations, and can be supplied to the stations at a longer distance through the far water discharge pipe 14, so as to achieve effective waste heat recovery and utilization, reduce the electric energy loss required by hot water supply, by providing the metal thermometer 9 and the negative pressure pump 10, when the temperature of the hot air is too high, the hot air which does not reach the standard can be sucked through the suction head 17 of the annular pipe 12, and the hot, meanwhile, the metal thermometer 9 is convenient for workers to start and stop the negative pressure pump 10 in time.

Wherein, four edges and corners in 4 bottoms of heat recovery section of thick bamboo all fix and are provided with branch 13, and the 13 bottom mounting of branch is provided with the blotter.

In this embodiment (as shown in fig. 1), by providing the cushion pad, the resonance noise of the rod 13 and the ground during heat recovery can be reduced by the cushion pad.

Wherein, the near drainage pipe 15 and the far drainage pipe 14 are both provided with valves.

In this embodiment (as shown in fig. 1), the valve is provided to facilitate the selective opening and closing of the drain pipe by the worker, so as to adjust the discharge of hot water.

Wherein, the right side of the heat recovery cylinder 4 is fixedly provided with a blocking edge 18, and the blocking edge 18 is in an annular shape.

In the present embodiment (as shown in fig. 1 and 3), by providing the blocking edge 18, the outflow of hot water can be prevented by the blocking edge 18.

Wherein, the support of negative pressure pump 10 runs through there is the bolt, and bolt and the screw that predetermines on the air-out cover 11 connect soon.

In this embodiment (as shown in fig. 1), the detachable connection mode is convenient for the later-stage disassembly, assembly, maintenance and repair of the negative pressure pump 10 by the bolts.

The working principle is as follows: it should be noted that the utility model relates to an ethylbenzene dehydrogenation waste heat recovery device, which comprises a heating furnace body 1, a smoke tube 2, an air tube 3, a heat recovery cylinder 4, a branch tube 5, a recharge tube 6, a water supply tube 7, a spray head 8, a metal thermometer 9, a negative pressure pump 10, an air outlet cover 11, a ring tube 12, a support rod 13, a far drain tube 14, a near drain tube 15, a water tank 16, an air suction head 17 and a baffle edge 18, wherein the components are all universal standard components or components known by technicians in the field, the structure and principle of the device can be known by technical manuals or conventional test methods, when the ethylbenzene dehydrogenation waste heat recovery device is used, the negative pressure pump 10 is externally connected with a power supply, the workers can carry out on-off control through switches of the device, and externally connect the water supply tube 7 with a water supply system, the spray head 8 and the water tank 16 are arranged, cooling water can be conveyed through, the hot air flowing through the spray head 8 is atomized and sprayed, the atomized spray water absorbs heat in the hot air to form hot water, the hot water flows to the bottom wall of the heat recovery cylinder 4 to prevent overhigh temperature of a workshop caused by the outward discharge of the hot air, meanwhile, the hot water is conveyed into the water tank 16 through the near water discharge pipe 15 to be supplied to peripheral stations, and the remote water discharge pipe 14 can be used for supplying stations at a longer distance to realize effective recovery and utilization of waste heat and reduce electric energy loss required by hot water supply.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an ethylbenzene dehydrogenation waste heat recovery device which characterized in that: comprises a heating furnace body (1);

the heating furnace is characterized in that a smoke pipe (2) and an air pipe (3) are respectively arranged on the top of the right wall and the right side of the bottom wall of the heating furnace body (1), a heat recovery cylinder (4) is arranged on the right side of the heating furnace body (1), the air pipe (3) is communicated with the heat recovery cylinder (4) through a branch pipe (5), a plurality of groups of uniformly arrayed spray heads (8) penetrate through the top wall of the heat recovery cylinder (4), a water supply pipe (7) is communicated with the tops of the spray heads (8), the left side and the right side of the bottom wall of the heat recovery cylinder (4) are respectively communicated with a near water discharge pipe (15) and a far water discharge pipe (14), a water tank (16) is arranged on the left side of the bottom of the heat recovery cylinder (4), the water tank (16) is located under the near water discharge pipe (15);

go out fixed negative pressure pump (10) that is provided with in fan housing (11) top, negative pressure pump (10) right side siphunculus bottom intercommunication is provided with annular pipe (12), annular pipe (12) inboard intercommunication is provided with the head (17) that induced drafts of a plurality of groups annular array, negative pressure pump (10) left side siphunculus intercommunication is provided with recharge pipe (6), heat recovery section of thick bamboo (4) roof right side is run through and is had metal thermometer (9).

2. The ethylbenzene dehydrogenation waste heat recovery device of claim 1, wherein: four edges and corners of the bottom of the heat recovery cylinder (4) are all fixedly provided with supporting rods (13), and the bottom ends of the supporting rods (13) are fixedly provided with cushion pads.

3. The ethylbenzene dehydrogenation waste heat recovery device of claim 1, wherein: and valves are arranged on the near drainage pipe (15) and the far drainage pipe (14).

4. The ethylbenzene dehydrogenation waste heat recovery device of claim 1, wherein: a blocking edge (18) is fixedly arranged on the right side of the heat recovery cylinder (4), and the blocking edge (18) is annular.

5. The ethylbenzene dehydrogenation waste heat recovery device of claim 1, wherein: and a bolt penetrates through a support of the negative pressure pump (10), and the bolt is screwed with a preset screw hole in the air outlet cover (11).