Fuel gas waste heat recovery device

Abstract

The utility model discloses a fuel gas waste heat recovery device, and relates to the field of waste heat boilers. The fuel gas waste heat recovery device comprises a protection base, a preheating base, a coil pipe and a communication unit. According to the fuel gas waste heat recovery device, the communicating pipe communicates with the waste heat boiler through the pipeline, redundant steam in the boiler is conveyed into the preheating base, the conveying pipe located in the preheating base is preheated, the steam is conveyed along the coil pipe, the conveying pipe in the protection base is heated in cooperation with the coil pipe, and pre-continuous heating of raw oil is completed; and when the redundant steam is excessive, the steam conveying is accelerated, so that the steam conveying speed in the coil pipe is increased, the steam circulation is accelerated, the heat of the steam in the coil pipe is increased, the preheating speed of the raw oil in the conveying pipe is increased, and the steam waste is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat boiler technical field, concretely is a fuel gas waste heat recovery device. BACKGROUND

[0002] The steam generated by the waste heat boiler is usually used for heating raw oil tank, tank area oil pipeline heat tracing and equipment heat tracing.

[0003] The steam generated by the waste heat boiler is usually used for heating raw oil tank, tank area oil pipeline heat tracing and equipment heat tracing. SUMMARY

[0004] In view of the prior art, the fuel gas waste heat recovery device provided by the utility model solves the problem that the steam generated by the waste heat boiler is still surplus after being used for heating raw oil tank, tank area oil pipeline heat tracing and equipment heat tracing, the surplus steam can cause the pressure of the waste heat boiler to rise, and long time use can cause the equipment to be damaged, the surplus steam is usually diffused, which causes energy waste and environmental damage.

[0005] To achieve the above object, the utility model is realized through the following technical scheme: a fuel gas waste heat recovery device, comprising a protection seat, the both sides of the protection seat are provided with a preheating seat, the protection seat and the preheating seat are provided with a conveying pipe, the conveying pipe is used for conveying raw oil, the protection seat is provided with a coil, the both ends of the coil pass through two preheating seats respectively, the preheating seat conveys steam to preheat the raw oil in the conveying pipe, the end of the coil inside the preheating seat is provided with a communication unit, the communication unit is used for conveying steam into the coil, and the coil is used for heat preservation and continuous preheating of the conveying pipe.

[0006] Preferably, the outer wall of the preheating seat is provided with a communication pipe, the communication pipe is used for steam in and out, and the raw oil in the preheating seat is preheated.

[0007] Preferably, the communication unit comprises:

[0008] The connecting seat is arranged in the preheating seat, and is used for conveying steam;

[0009] The connecting pipe is fixedly connected with the connecting seat, and the end of the connecting pipe is communicated with the coil pipe;

[0010] The sliding seat is slidably connected to the inner wall of the connecting seat, and is used for conveying the steam in the preheating seat to the coil pipe.

[0011] Preferably, a plurality of air inlet grooves are arranged on the inner wall of the sliding seat, and the air inlet grooves are equidistantly distributed on the outer peripheral wall of the sliding seat, and are used for conveying the steam in the preheating seat to the connecting seat.

[0012] Preferably, a fixing seat is fixedly connected to one end of the connecting seat.

[0013] Preferably, a plurality of telescopic rods are fixedly connected to one side of the fixing seat, the telescopic rods are symmetrically distributed on the fixing seat, and the other ends of the telescopic rods are fixedly connected with the connecting seat.

[0014] Preferably, springs are arranged in the telescopic rods, and the sliding of the air inlet grooves and the telescopic rods is limited by the springs.

[0015] The utility model discloses a fuel gas waste heat recovery device, it has the beneficial effect as follows:

[0016] The fuel gas waste heat recovery device, the communicating pipe is communicated with the waste heat boiler through the pipeline, and the excess steam in the boiler is conveyed to the preheating seat, the conveying pipe in the preheating seat is preheated, the steam is conveyed along the coil pipe, the conveying pipe in the protection seat is heated in cooperation with the coil pipe, the preheating of the raw oil is completed, and when the excess steam is too much, the steam conveying is accelerated, the steam conveying speed in the coil pipe is improved, the circulation of the steam is accelerated, the heat of the steam in the coil pipe is improved, the preheating speed of the raw oil in the conveying pipe is accelerated, and steam waste is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Fig. 1 It is the whole structure schematic diagram of this embodiment;

[0019] Fig. 2 It is the connecting schematic diagram of the protection seat and the preheating seat of this embodiment;

[0020] Fig. 3 The schematic view of the communication unit structure of the embodiment.

[0021] In the figure: 1, protective seat; 11, preheating seat; 12, communication pipe; 2, conveying pipe; 3, coil pipe; 4, communication unit; 41, connecting seat; 42, connecting pipe; 43, sliding seat; 44, air inlet groove; 45, fixing seat; 46, telescopic rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model is described clearly and completely, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The embodiment of the application provides a fuel gas waste heat recovery device, solves the problem that after waste heat boiler steam is used for heating raw oil tank, tank area oil pipeline heat tracing and equipment heat tracing, there is still surplus, the surplus steam can cause the pressure of the waste heat boiler to rise, and long time can cause damage to the equipment, the surplus steam is usually diffused, causing waste of energy and damage to the environment, the problem is solved, the communication pipe 12 is communicated with the waste heat boiler through the pipeline, the surplus steam in the boiler is transported into the preheating seat 11, the conveying pipe 2 in the preheating seat 11 is preheated, the steam is transported along the coil pipe 3, the conveying pipe 2 in the protective seat 1 is heated in cooperation with the coil pipe 3, the preheating of the raw oil is completed, and when the surplus steam is too much, the steam transportation is accelerated, and then the steam conveying speed in the coil pipe 3 is improved, the circulation of the steam is accelerated, the heat of the steam in the coil pipe 3 is improved, and then the preheating speed of the raw oil in the conveying pipe 2 is accelerated, and the waste of steam is effectively avoided.

[0024] In order to better understand the above technical scheme, the above technical scheme will be described in detail in combination with the drawings of the specification and specific embodiments.

[0025] The embodiment of the utility model discloses a fuel gas waste heat recovery device.

[0026] Embodiment one:

[0027] According to the drawings Figs. 1-3 As shown, the protective seat 1 is installed on both sides of the protective seat 1, the conveying pipe 2 is inserted into the protective seat 1 and the preheating seat 11, and the conveying pipe 2 is used for conveying raw oil;

[0028] The protective seat 1 is provided with a coil pipe 3, both ends of the coil pipe 3 pass through two preheating seats 11 respectively, steam is conveyed in the preheating seat 11 to preheat the raw oil in the conveying pipe 2, and the preheating seat 11 is provided with a communication unit 4 at one end inside the preheating seat 11, the communication unit 4 is used for conveying steam into the coil pipe 3, and the coil pipe 3 is used for heat preservation and continuous preheating of the conveying pipe 2.

[0029] The preheating seat 11 is provided with a communication pipe 12 on the outer wall, the communication pipe 12 is used for steam in and out, and the raw oil in the preheating seat 11 is preheated, the raw oil is heated by the remaining steam, the viscosity of the raw oil is effectively reduced, the flowability of the raw oil is increased, the atomization effect of the raw oil in the reaction furnace is increased, and the product quality such as coloring strength, NSA, STSA and the like is improved, the sensible heat of the raw oil itself is improved, the product energy consumption is reduced, and the yield is increased.

[0030] The communication pipe 12 is communicated with the waste heat boiler through a pipeline, the excess steam in the boiler is conveyed into the preheating seat 11, the conveying pipe 2 in the preheating seat 11 is preheated, and the air pressure of the preheating seat 11 is increased as the steam gradually enters the preheating seat 11.

[0031] The communication unit 4 comprises:

[0032] A connecting seat 41 is arranged in the preheating seat 11, and the connecting seat 41 is used for conveying steam;

[0033] A connecting pipe 42 is fixedly connected with the connecting seat 41, and an end of the connecting pipe 42 is communicated with the coil pipe 3;

[0034] A sliding seat 43 is slidingly connected to the inner wall of the connecting seat 41, and the sliding seat 43 is used for conveying the steam in the preheating seat 11 into the coil pipe 3.

[0035] When the air pressure in the preheating seat 11 is increased, the sliding seat 43 is pushed to slide along the connecting seat 41, the steam in the preheating seat 11 is conveyed into the connecting seat 41, the steam is conveyed along the coil pipe 3 through the connecting seat 41 and the connecting pipe 42, the conveying pipe 2 in the protective seat 1 is heated in cooperation with the coil pipe 3, and the continuous preheating of the raw oil is completed.

[0036] Example two:

[0037] According to the drawings, Figs. 1-3 As shown in the drawings, a plurality of air inlet grooves 44 are arranged on the inner wall of the sliding seat 43, the air inlet grooves 44 are equidistantly distributed on the outer peripheral wall of the sliding seat 43, and the air inlet grooves 44 are used for conveying the steam in the preheating seat 11 into the connecting seat 41.

[0038] A fixed seat 45 is fixedly connected to one end of the sliding seat 43 outside the connecting seat 41.

[0039] A plurality of telescopic rods 46 are fixedly connected to one side of the fixed seat 45, and the telescopic rods 46 are symmetrically distributed on the fixed seat 45, and the other end of the telescopic rod 46 is fixedly connected with the connecting seat 41.

[0040] When the pressure in the preheating seat 11 increases, the preheating seat 11 pushes the sliding seat 43 to move, so that the fixed seat 45 moves, and at this time the fixed seat 45 pushes the telescopic rod 46 to extend or retract.

[0041] The telescopic rod 46 is internally provided with a spring, and the sliding of the air inlet groove 44 and the telescopic rod 46 is limited by the spring, and when the telescopic rod 46 extends or retracts, the spring is compressed, and under the rebound of the spring, the movement of the sliding seat 43 and the fixed seat 45 is limited;

[0042] When the excess steam is too much, the amount of steam entering the preheating seat 11 is too large, which causes the pressure in the preheating seat 11 to gradually increase, and the sliding seat 43 is pushed to slide more in the connecting seat 41, so that the size of the air inlet groove 44 in the connecting seat 41 increases, the steam conveying is accelerated, and the steam conveying speed in the coil pipe 3 is improved, the steam circulation is accelerated, the heat of the steam in the coil pipe 3 is improved, and the preheating speed of the raw oil in the conveying pipe 2 is accelerated.

[0043] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A fuel gas waste heat recovery device characterized by comprising: The application relates to a protective seat (1) which is provided with preheating seats (11) on both sides, a conveying pipe (2) is inserted into the protective seat (1) and the preheating seats (11), the conveying pipe (2) is used for conveying raw oil, a coil pipe (3) is arranged in the protective seat (1), the two ends of the coil pipe (3) pass through the two preheating seats (11) respectively, steam is conveyed in the preheating seats (11) to preheat the raw oil in the conveying pipe (2), a communication unit (4) is arranged at one end of the coil pipe (3) which is inside the preheating seat (11), the communication unit (4) is used for conveying steam into the coil pipe (3), the coil pipe (3) is matched with the conveying pipe (2) to keep the conveying pipe (2) warm and continuously preheat the conveying pipe (2).

2. A fuel gas waste heat recovery device according to claim 1, characterized by The outer wall of the preheating seat (11) is provided with a communication pipe (12) which is used for feeding and discharging steam and preheating the raw oil in the preheating seat (11).

3. The fuel gas waste heat recovery device according to claim 1, characterized by The communication unit (4) comprises: A connecting seat (41) arranged in the preheating seat (11) and used for conveying steam; A connecting pipe (42) fixedly connected with the connecting seat (41) and having an end connected with the coil pipe (3); A sliding seat (43) slidingly connected with the inner wall of the connecting seat (41) and used for conveying the steam in the preheating seat (11) into the coil pipe (3).

4. A fuel gas waste heat recovery device according to claim 3, characterized by A plurality of air inlet grooves (44) are arranged on the inner wall of the sliding seat (43) and equidistantly distributed on the outer peripheral wall of the sliding seat (43), and the air inlet grooves (44) are used for conveying the steam in the preheating seat (11) into the connecting seat (41).

5. A fuel gas waste heat recovery device according to claim 4, characterised in that, A fixing seat (45) is fixedly connected with one end of the sliding seat (43) which is outside the connecting seat (41).

6. A fuel gas waste heat recovery device according to claim 5, wherein A plurality of telescopic rods (46) are fixedly connected with one side of the fixing seat (45) and symmetrically distributed on the fixing seat (45), and the other ends of the telescopic rods (46) are fixedly connected with the connecting seat (41).

7. A fuel gas waste heat recovery device according to claim 6, characterised in that, The telescopic rods (46) are provided with springs inside, and the sliding of the air inlet grooves (44) and the telescopic rods (46) is limited by the springs.

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