Curing oven waste heat recovery device

Abstract

The utility model relates to a waste heat recovery device of a curing oven, which comprises a horizontal curing bin and a heating component, and is technically characterized in that a support is arranged in the lower part of the horizontal curing bin, a pair of hollow support cylinders are arranged between end plates on the front side and the rear side of the support, the front end surfaces of the two hollow support cylinders are connected with a front central through pipe, and the rear end surfaces of the two hollow support cylinders are connected with a rear central through pipe; the front center through pipe and the rear center through pipe are led out of the front side wall and the rear side wall of the horizontal curing bin respectively and connected with a front rotating connector and a rear rotating connector, the other end of the front rotating connector is connected with a waste heat utilization medium inlet, and the other end of the rear rotating connector is connected with a waste heat utilization medium outlet. The left side and the right side of the support are respectively provided with an air collection cavity, the top face of each air collection cavity is provided with a plurality of air suction ports, and the air collection cavities are further communicated with a negative pressure pipeline. The device facilitates heat storage to improve the curing efficiency on one hand, and facilitates recovery of waste heat on the petroleum pipe after curing operation on the other hand, so that the waste heat utilization rate is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum pipeline production equipment technical field, concretely relates to a solidification furnace waste heat recovery device. BACKGROUND

[0002] The petroleum pipeline usually needs to carry out anticorrosion treatment after production and carries out drying and solidification to anticorrosion layer by using solidification furnace to avoid pipeline leakage problem in long -term use process and prolongs pipeline service life. However, in the solidification furnace operation process, a large amount of heating energy is consumed, and waste heat recovery is very necessary.

[0003] CN 212058246 U discloses a kind of double-layer solidification furnace equipment for anticorrosion petroleum pipe solidification, it includes furnace body, support foot, conveying mechanism, through slot, heating mechanism, waste heat recovery mechanism and control panel, the outside of furnace body bottom is provided with conveying mechanism, both sides of furnace body are all excavated with through slot, the outside of furnace body and the side adjacent to through slot are provided with heating mechanism, and the top of furnace body is provided with waste heat recovery mechanism. The solidification furnace equipment is by being provided with heating mechanism in the inside of furnace body, and the anticorrosion petroleum pipe in solidification furnace is operated simultaneously, and by being provided with waste heat recovery mechanism, the waste heat generated in the inside of furnace body is heated secondly, and it is used again by being passed into the inside of furnace body, it is intended to complete recycling operation, and reduce energy waste. But there are still the following problems: after solidification operation, the waste heat on petroleum pipe cannot be effectively recovered, and it is not conducive to the cooling of petroleum pipe, and it is not conducive to the rapid output of solidified petroleum pipe. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of solidification furnace waste heat recovery device with reasonable structure and reliable use to solve the above-mentioned problems, which is conducive to heat storage and improve solidification efficiency on one hand, and it is conducive to the recovery of waste heat on petroleum pipe after solidification operation on the other hand, to further improve waste heat utilization rate.

[0005] The technical scheme of the utility model is:

[0006] The utility model provides a solidification furnace waste heat recovery device, including horizontal solidification bin, heating assembly in the top surface of horizontal solidification bin, its technical key points are: the lower part of horizontal solidification bin is built -in the support along its length direction arrangement, the end plate of the front and rear sides of support is arranged with a pair of hollow supporting tube, and the front end surface of two hollow supporting tubes is connected with front center through pipe, and the rear end surface is connected with rear center through pipe, and front center through pipe and rear center through pipe lead out the front and rear side wall of horizontal solidification bin and connect front rotary joint and rear rotary joint, and the other end of front rotary joint is connected with waste heat utilization medium inlet, and the other end of rear rotary joint is connected with waste heat utilization medium outlet, and the outside of horizontal solidification bin is equipped with the drive mechanism corresponding to a hollow supporting tube, and the left and right sides of support are equipped with gas collection cavity respectively, and the top surface of gas collection cavity is equipped with a plurality of air inlets, and gas collection cavity is also communicated with negative pressure pipeline.

[0007] The solidification furnace waste heat recovery device has two waste heat utilization medium inlets communicated with the branch pipelines respectively, and two waste heat utilization medium outlets communicated with the converging pipelines respectively, and a heat exchanger connected between the branch pipeline and the converging pipeline.

[0008] The solidification furnace waste heat recovery device has a drive mechanism including a drive motor, a driven sprocket fixed to a pipe segment of the rear center through pipe outside the horizontal solidification bin, and a driving sprocket fixed to an output shaft of the drive motor and connected with the driven sprocket.

[0009] The solidification furnace waste heat recovery device has a plurality of lifting cylinders arranged at intervals between the two hollow supporting tubes, a horizontal support supported by the upper ends of the cylinder rods of the lifting cylinders, the horizontal support parallel to the hollow supporting tubes, a plurality of horizontal rollers arranged at intervals on the upper surface of the horizontal support, and an arc-shaped groove matched with the bottom of the petroleum pipe arranged on the outer periphery of the wheel body of the horizontal roller.

[0010] The solidification furnace waste heat recovery device has a heating assembly including a heating interlayer fixed to the inner top surface of the horizontal solidification bin, a plurality of air injection ports fixed to the lower surface of the heating interlayer, air injection ports fixed to the top surface of the heating interlayer, and air injection pipelines communicated with the air injection ports.

[0011] The solidification furnace waste heat recovery device has a feed inlet and a discharge outlet arranged at the front and rear ends of the horizontal solidification bin.

[0012] The solidification furnace waste heat recovery device has a front positioning seat corresponding to the waste heat utilization medium inlet arranged at the front part of the horizontal solidification bin, and a rear positioning seat corresponding to the waste heat utilization medium outlet arranged at the rear part of the horizontal solidification bin.

[0013] The solidification furnace waste heat recovery device has the following advantages:

[0014] 1. When curing operation, the medium is injected into the hollow cylinder, and the medium is not circulated for heat storage, when curing operation, the hollow cylinder drives the oil pipe to rotate, and the heat is absorbed and transmitted to the oil pipe, improving the curing efficiency of the oil pipe.

[0015] 2. After the curing operation is completed, the medium in the hollow cylinder forms a circulating state, and the medium entering the hollow cylinder continuously transmits the absorbed heat to the external heat exchanger, thereby transmitting the waste heat to the required place, which is beneficial to recycle the waste heat of the oil pipe after the curing operation, and further improve the waste heat utilization rate. The continuous and rapid cooling of the hollow cylinder is also beneficial to rapidly reduce the temperature of the oil pipe and speed up the pipeline output speed. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the utility model;

[0017] Figure 2 is Figure 1 the left view of

[0018] Figure 3 is a cross-sectional schematic view of the utility model.

[0019] In the figure: 1. gas injection pipeline, 2. air vent, 3. horizontal curing bin, 4. heating interlayer, 5. air jet, 6. oil pipe, 7. discharge port, 8. rear center through pipe, 9. driven sprocket, 10. rear rotary joint, 11. waste heat utilization medium outlet, 12. rear positioning seat, 13. driving motor reducer, 14. driving sprocket, 15. negative pressure pipeline, 16. gas collection cavity, 17. air inlet, 18. lifting cylinder, 19. support, 20. front center through pipe, 21. front rotary joint, 22. front positioning seat, 23. waste heat utilization medium inlet, 24. hollow cylinder, 25. feed inlet, 26. horizontal roller, 27. shunt pipeline, 28. horizontal support. DETAILED DESCRIPTION

[0020] The utility model is described in detail according to the description drawing.

[0021] As Figures 1-3 shown, the curing furnace waste heat recovery device comprises a horizontal curing bin 3 and a heating assembly arranged on the top surface of the horizontal curing bin 3.

[0022] The lower part of the horizontal curing bin 3 is internally provided with a support 19 arranged along the length direction thereof, and a pair of hollow supporting cylinders 24 is arranged between the end plates on the front and rear sides of the support 19. The front end faces of the two hollow supporting cylinders 24 are connected with a front center through pipe 20, and the rear end faces thereof are connected with a rear center through pipe 8, which respectively lead out of the front and rear side walls of the horizontal curing bin 3 and are connected with a front rotary joint 21 and a rear rotary joint 10. The other end of the front rotary joint 21 is connected with a waste heat utilization medium inlet 23, and the other end of the rear rotary joint 10 is connected with a waste heat utilization medium outlet 11. The waste heat utilization medium inlets 23 communicated with the two hollow supporting cylinders 24 are respectively communicated with a branch pipe line 27, and the waste heat utilization medium outlets 11 communicated with the two hollow supporting cylinders 24 are respectively communicated with a converging pipe line, and a heat exchanger is connected between the branch pipe line 27 and the converging pipe line. The front part of the horizontal curing bin 3 is provided with a front positioning seat 22 corresponding to the waste heat utilization medium inlet 23, and the rear part of the horizontal curing bin 3 is provided with a rear positioning seat 12 corresponding to the waste heat utilization medium outlet 11.

[0023] The horizontal curing bin 3 is externally provided with a driving mechanism corresponding to one hollow supporting cylinder 24, and the driving mechanism comprises a driving motor speed reducer 13, a driven sprocket 9 fixed to the pipe segment of the rear center through pipe 8 on the outside of the horizontal curing bin, and a driving sprocket 14 fixed to the output shaft of the driving motor speed reducer 13 and connected with the driven sprocket 9.

[0024] A plurality of lifting cylinders 18 are arranged at intervals in the position between the two hollow supporting cylinders 24 of the support 19, and the upper ends of the cylinder rods of the respective lifting cylinders 18 jointly support a horizontal support 28, which is parallel to the hollow supporting cylinders 24. A plurality of horizontal rollers 26 are arranged at intervals on the upper surface of the horizontal support 28, and the outer periphery of the wheel body of the horizontal rollers 26 is provided with an arc-shaped groove matched with the bottom of the petroleum pipe 6.

[0025] The heating assembly comprises a heating interlayer 4 fixed to the inner top surface of the horizontal curing bin 3, a plurality of air injection ports 5 fixed to the lower surface of the heating interlayer 4, air vents 2 fixed to the top surface of the heating interlayer 4, and air injection pipe lines 1 communicated with the respective air vents 2. The left and right sides of the support 19 are respectively provided with gas collection cavities 16, the top surfaces of the gas collection cavities 16 are provided with a plurality of air suction ports 17, and the gas collection cavities 16 are further communicated with a negative pressure pipeline 15.

[0026] The front and rear end faces of the horizontal curing bin 3 are provided with a feed inlet 25 and a discharge outlet 7.

[0027] Working principle:

[0028] 1. Before work, the petroleum pipe 6 to be cured is sent into the horizontal curing bin 3 through the feed inlet 25 by using an external conveying mechanism, wherein the cylinder rods of the respective lifting cylinders 18 are located at the upper dead center, and the respective horizontal rollers 26 receive and conduct the petroleum pipe 6 to completely enter into the horizontal curing bin 3.

[0029] 2、 each lifting cylinder 18 of the cylinder rod to the lower stop point, the oil pipe 6 seat on two hollow cylinder 24 above. By shunt pipe 27 into two hollow cylinder 24 injection heat transfer medium, start drive motor reducer 13, drive two hollow cylinder 24 rotation, thus drive oil pipe 6 rotation, at this time, using heating components to spray heating gas to the outside of oil pipe 6, and then use negative pressure pipeline 15 in the gas cavity 16 form negative pressure, make heating gas via each air inlet 17 into the gas cavity 16, and then via negative pressure pipeline 15 to the circulating heating, and then back to the heating component.

[0030] 3、 solidification operation is completed, the hollow cylinder 24 in heat transfer medium switch to circulating state, the heat transfer medium into the hollow cylinder 24 will absorb the heat constantly transmitted to the external heat exchanger, so as to send the waste heat to the required occasion, is conducive to the recovery of solidification operation after oil pipe 6 on the waste heat.

[0031] 4, set time, cooling is completed, each lifting cylinder 18 of the cylinder rod rises, each horizontal roller 26 lift oil pipe 6, under the traction, oil pipe 6 by horizontal solidification bin 3 discharge port 7 traction out.

[0032] The above embodiment of the present application is described in detail, but the content is only the preferred embodiment of the present application, can not be considered for limiting the scope of the present application. Any equivalent changes and improvements made in the scope of the present application, should still belong to the scope of the present patent.

Claims

1. A solidification furnace waste heat recovery device, comprising a horizontal solidification bin, a heating assembly arranged on the top surface of the horizontal solidification bin, characterized in that: The lower part of the horizontal curing bin is internally provided with a support arranged along the length direction thereof, a pair of hollow supporting cylinders is arranged between the end plates of the front and rear sides of the support, the front end faces of the two hollow supporting cylinders are connected with a front center through pipe, the rear end faces are connected with a rear center through pipe, the front center through pipe and the rear center through pipe respectively lead out the front and rear side walls of the horizontal curing bin and are connected with a front rotary joint and a rear rotary joint, the other end of the front rotary joint is connected with a waste heat utilization medium inlet, the other end of the rear rotary joint is connected with a waste heat utilization medium outlet, a driving mechanism corresponding to one hollow supporting cylinder is arranged outside the horizontal curing bin, the left and right sides of the support are respectively provided with a gas collecting cavity, the top face of the gas collecting cavity is provided with a plurality of air suction ports, and the gas collecting cavity is also in communication with a negative pressure pipeline.

2. The curing oven waste heat recovery device according to claim 1, characterized by: The waste heat utilization medium inlets communicated with the two hollow supporting cylinders are respectively in communication with a shunt pipeline, the waste heat utilization medium outlets communicated with the two hollow supporting cylinders are respectively in communication with a converging pipeline, and a heat exchanger is connected between the shunt pipeline and the converging pipeline.

3. The curing oven waste heat recovery device according to claim 1, characterized by: The driving mechanism comprises a driving motor and a speed reducer, a driven sprocket fixed to a pipe segment of the rear center through pipe located outside the horizontal curing bin, and a driving sprocket fixed to an output shaft of the driving motor and connected with the driven sprocket.

4. The curing oven waste heat recovery device according to claim 1, characterized by: A plurality of lifting cylinders are arranged at intervals at the position of the support between the two hollow supporting cylinders, the upper ends of the cylinder rods of the lifting cylinders are commonly supported by a horizontal support, the horizontal support is parallel to the hollow supporting cylinders, a plurality of horizontal rollers are arranged at intervals on the upper surface of the horizontal support, and an arc-shaped groove matched with the bottom of the petroleum pipe is arranged on the outer periphery of the wheel body of the horizontal roller.

5. The curing oven waste heat recovery device according to claim 1, characterized by: The heating assembly comprises a heating interlayer fixed to the inner top face of the horizontal curing bin, a plurality of air injection ports fixed to the lower surface of the heating interlayer, air vent ports fixed to the top face of the heating interlayer, and an air injection pipeline in communication with each air vent port.

6. The curing oven waste heat recovery device according to claim 1, characterized by: The front and rear end faces of the horizontal curing bin are provided with a feeding port and a discharging port.

7. The curing oven waste heat recovery device according to claim 1, characterized by: The front part of the horizontal curing bin is provided with a front positioning seat corresponding to the waste heat utilization medium inlet, and the rear part of the horizontal curing bin is provided with a rear positioning seat corresponding to the waste heat utilization medium outlet.

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