Water heating device for butyraldehyde production equipment

Abstract

The utility model relates to a hot water device used in butyraldehyde production equipment, which comprises a hot water tank, a hot water tank hot water outlet pipeline and a condensate inlet pipeline, and further comprises a hot water pump, a heater and a heat exchanger, a heater tube pass inlet and a heat exchanger tube pass inlet are respectively communicated with the output end of a hot water pump through connecting pipelines, a heater tube pass outlet is respectively connected with a high-pressure evaporator shell pass inlet and a low-pressure evaporator shell pass inlet through connecting pipelines, and a heat exchanger tube pass outlet is communicated with the high-pressure evaporator shell pass inlet through a connecting pipeline; according to the technical scheme, the heat exchanger and the heater are matched in parallel, so that the temperature of hot water is effectively increased, and the bottleneck that crude butyraldehyde in mother liquor is difficult to separate during dosage production is solved; in production practice, the amount of medium-pressure steam can be reduced by about 4 tons when equipment works per hour, the byproduct steam in the steam pocket of the butyraldehyde hydrogenation device is effectively recovered, and heat and resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of equipment for producing butyraldehyde, in particular to a kind of hot water device for producing butyraldehyde equipment. BACKGROUND

[0002] In prior art butyraldehyde production process, due to the increase of front system, when crude butyraldehyde is separated in evaporation system, it is difficult to separate due to the influence of hot water temperature in hot water system, and the hot water provided by hot water system not only cannot meet normal production, but also steam consumption is large. CONTENT OF UTILITY MODEL

[0003] Therefore, the main purpose of the utility model is to provide a kind of hot water device for producing butyraldehyde equipment through the technical scheme, utilize heat exchanger and heater parallel cooperation, improve hot water temperature, solve the bottleneck of hot water system in prior art, realize the effective separation of crude butyraldehyde in evaporator.

[0004] In order to achieve the above purpose, the technical scheme of the utility model is as follows: a kind of hot water device for producing butyraldehyde equipment, including hot water tank, hot water tank hot water outlet pipeline and condensate liquid inlet pipeline, the condensate liquid inlet pipeline is connected with the upper part in hot water tank, the hot water tank hot water outlet pipeline one end is connected with the bottom in hot water tank, further including hot water pump, heater and heat exchanger, the hot water pump is connected with the other end of hot water tank hot water outlet pipeline, the heater pipe process import and the heat exchanger pipe process import are connected with the output end of hot water pump respectively through connecting pipeline, and the heater pipe process export is connected with the high-pressure evaporator shell process import and the low-pressure evaporator shell process import respectively through connecting pipeline, the heat exchanger pipe process export is connected with the high-pressure evaporator shell process import through connecting pipeline.

[0005] As a further technical scheme, it further includes medium-pressure steam gas inlet pipeline and medium-pressure condensate liquid outlet pipeline, the medium-pressure steam gas inlet pipeline one end is connected with medium-pressure steam pipe network, and the other end of medium-pressure steam gas inlet pipeline is connected with the heater shell process import, the medium-pressure condensate liquid outlet pipeline one end is connected with the heater shell process export, and the other end of medium-pressure condensate liquid outlet pipeline is connected with medium-pressure steam condensate liquid system.

[0006] As a further technical scheme, it further includes by-product steam gas inlet pipeline and by-product condensate liquid outlet pipeline, the by-product steam gas inlet pipeline one end is connected with butyraldehyde hydrogenation device steam drum top outlet, and the other end of by-product steam gas inlet pipeline is connected with the heat exchanger shell process import, the by-product condensate liquid outlet pipeline one end is connected with the heat exchanger shell process export, and the other end of by-product condensate liquid outlet pipeline is connected with low-pressure condensate liquid system.

[0007] As a further technical scheme, it further comprises a gas supplement vent, a nitrogen supplement pipeline and a venting pipeline, the gas supplement vent is arranged at the top of the hot water tank, and the nitrogen supplement pipeline and the venting pipeline are connected with the gas supplement vent respectively.

[0008] As a further technical scheme, it further comprises a medium pressure loop regulating valve and a flow meter, which are connected in series on the medium pressure vapor inlet pipeline.

[0009] As a further technical scheme, it further comprises a high pressure loop regulating valve and a high pressure loop thermometer, which are connected in series on the connecting pipeline connected between the outlet of the heater tube and the inlet of the high pressure evaporator shell.

[0010] As a further technical scheme, it further comprises a low pressure loop regulating valve and a low pressure loop thermometer, which are connected in series on the connecting pipeline connected between the outlet of the heater tube and the inlet of the low pressure evaporator shell.

[0011] As a further technical scheme, it further comprises a parallel regulating valve, which is connected in parallel at both ends on the corresponding connecting pipeline connected between the outlet of the heater tube and the outlet of the heat exchanger tube.

[0012] As a further technical scheme, it further comprises a compensation regulating valve, one end of which is connected with the corresponding connecting pipeline of the outlet of the heat exchanger tube, and the other end of which is connected with the connecting pipeline connected with the inlet of the high pressure evaporator shell.

[0013] The beneficial effects of the above technical scheme are as follows: the hot water device for the equipment for producing butyraldehyde, by the technical scheme, the heat exchanger and the heater are connected in parallel, the temperature of the hot water is effectively improved, the bottleneck that the crude butyraldehyde in the mother liquor is difficult to separate is solved when the production is increased; in the production practice, the medium pressure vapor quantity of the equipment per hour can be reduced by nearly 4 tons, the product unit consumption is directly reduced, the by-product steam in the butyraldehyde hydrogenation device steam drum is effectively recovered, heat and resources are saved, and steam waste is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a schematic view of the overall connection structure of the utility model.

[0015] In the figure, 1 hot water tank, 2 hot water tank hot water outlet pipeline, 3 condensate inlet pipeline, 4 hot water pump, 5 heater, 6 heat exchanger, 7 heater tube inlet, 8 heat exchanger tube inlet, 9 heater tube outlet, 10 high pressure evaporator, 11 low pressure evaporator, 12 heat exchanger tube outlet, 13 medium pressure steam inlet pipeline, 14 medium pressure condensate outlet pipeline, 15 heater shell inlet, 16 heater shell outlet, 17 by-product steam inlet pipeline, 18 by-product condensate outlet pipeline, 19 heat exchanger shell inlet, 20 heat exchanger shell outlet, 21 air supplement vent, 22 nitrogen supplement pipeline, 23 vent pipeline, 24 medium pressure loop regulating valve, 25 flow meter, 26 high pressure loop regulating valve, 27 high pressure loop temperature gauge, 28 low pressure loop regulating valve, 29 low pressure loop temperature gauge, 30 parallel regulating valve, 31 compensation regulating valve, 32 butyraldehyde hydrogenation device steam drum. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model will be further described in detail below with reference to the drawings.

[0017] As Figure 1 shown in the utility model relates to a hot water device for producing butyraldehyde equipment, including hot water tank 1, hot water tank hot water outlet pipeline 2 and condensate inlet pipeline 3, the condensate inlet pipeline 3 with hot water tank 1 inner upper portion is linked together, hot water tank hot water outlet pipeline 2 one end with hot water tank 1 inner bottom is linked together, still including hot water pump 4, heater 5 and heat exchanger 6, hot water pump 4 with hot water tank hot water outlet pipeline 2 other end is linked together, heater tube inlet 7 and heat exchanger tube inlet 8 are linked together with hot water pump 4 output end through connecting pipeline respectively, and heater tube outlet 9 is linked together with high pressure evaporator 10 shell inlet and low pressure evaporator 11 shell inlet through connecting pipeline respectively, and heat exchanger tube outlet 12 is linked together with high pressure evaporator 10 shell inlet through connecting pipeline.

[0018] As a further technical scheme, still including medium pressure steam inlet pipeline 13 and medium pressure condensate outlet pipeline 14, medium pressure steam inlet pipeline 13 one end is linked together with medium pressure steam pipe network, and medium pressure steam inlet pipeline 13 other end is linked together with heater shell inlet 15, and medium pressure condensate outlet pipeline 14 one end is linked together with heater shell outlet 16, and medium pressure condensate outlet pipeline 14 other end is linked together with medium pressure steam condensate system.

[0019] As a further technical solution, it further comprises a by-product steam inlet pipeline 17 and a by-product condensate outlet pipeline 18, one end of the by-product steam inlet pipeline 17 is connected with the top outlet of the butyraldehyde hydrogenation device steam drum 32, the other end of the by-product steam inlet pipeline 17 is connected with the shell inlet 19 of the heat exchanger, one end of the by-product condensate outlet pipeline 18 is connected with the shell outlet 20 of the heat exchanger, and the other end of the by-product condensate outlet pipeline 18 is connected with a low-pressure condensate system.

[0020] As a further embodiment, it further comprises a gas supplement vent 21, a supplementary nitrogen pipeline 22 and a vent pipeline 23, the gas supplement vent 21 is arranged at the top of the hot water tank 1, and the supplementary nitrogen pipeline 22 and the vent pipeline 23 are connected with the gas supplement vent 21 respectively.

[0021] As a further embodiment, it further comprises a medium-pressure loop regulating valve 24 and a flowmeter 25, the medium-pressure loop regulating valve 24 and the flowmeter 25 are connected in series on the medium-pressure steam inlet pipeline 13.

[0022] As a further embodiment, it further comprises a high-pressure loop regulating valve 26 and a high-pressure loop thermometer 27, the high-pressure loop regulating valve 26 and the high-pressure loop thermometer 27 are connected in series on the connecting pipeline connected between the heater tube outlet 9 and the shell inlet of the high-pressure evaporator 10.

[0023] As a further embodiment, it further comprises a low-pressure loop regulating valve 28 and a low-pressure loop thermometer 29, the low-pressure loop regulating valve 28 and the low-pressure loop thermometer 29 are connected in series on the connecting pipeline connected between the heater tube outlet 9 and the shell inlet of the low-pressure evaporator 11.

[0024] As a further embodiment, it further comprises a parallel regulating valve 30, the parallel regulating valve 30 is connected at two ends on the corresponding connecting pipelines connected between the heater tube outlet 9 and the heat exchanger tube outlet 12.

[0025] As a further embodiment, it further comprises a compensation regulating valve 31, one end of the compensation regulating valve 31 is connected with the corresponding connecting pipeline of the heat exchanger tube outlet 12, and the other end of the compensation regulating valve 31 is connected with the connecting pipeline connected with the shell inlet of the high-pressure evaporator 10.

[0026] The butyraldehyde hydrogenation device steam drum 32 in the utility model is owned in the existing butyraldehyde production equipment, and will not be described in further detail here.

[0027] The utility model discloses a heat water tank 1 pressure control is at about 0.4MPa, utilizes the emptying pipeline 23 and the supplementary nitrogen pipeline 22 control heat water tank 1 top pressure, through hot water pump 4 will hot water respectively after heater 5 and heat exchanger 6, after heater 5 heating hot water divides two ways, after heat exchanger heat exchange hot water also divides two ways, after heater 5 heating one way hot water and after heat exchanger 6 heat exchange one way hot water mix and send into high pressure evaporator 10 shell side and carry out evaporation work, and similarly after heater 5 heating another way hot water and after heat exchanger 6 heat exchange another way hot water mix and send into low pressure evaporator 11 shell side and carry out evaporation work, the hot water temperature of entering high pressure evaporator 10 is by remote high pressure circuit thermometer 27 fractional control high pressure circuit regulating valve 26 and the opening of compensating regulating valve 31 control at about 145 DEG C, the hot water temperature of entering low pressure evaporator 11 is by remote low pressure circuit thermometer 29 fractional control low pressure circuit regulating valve 28 and the opening of parallel regulating valve 30 control at about 141 DEG C. Through this technical scheme, utilize the parallel coordination of heat exchanger 6 and heater 5, effectively improve hot water temperature, solved the bottleneck of crude butyl aldehyde separation difficult in the mother liquor when increasing production, in the production practice, equipment every hour work can reduce medium pressure steam amount nearly 4 tons, directly reduced product unit consumption, in addition through the recovery butyl aldehyde hydrogenation device steam drum 32 emptying steam, save heat and resources, avoided steam waste.

[0028] The above merely describes preferred and workable embodiments of the utility model, and is not intended to limit the scope of the utility model.

Claims

1. A hot water device for use in a butyraldehyde production plant, comprising a hot water tank, a hot water tank hot water outlet line and a condensate inlet line, said condensate inlet line being in communication with an upper portion of the interior of the hot water tank, said hot water tank hot water outlet line being in communication at one end with a bottom portion of the interior of the hot water tank, characterized in that, The hot water pump is connected with the other end of the hot water tank hot water outlet pipeline, the heater tube inlet and the heat exchanger tube inlet are respectively connected with the output end of the hot water pump through connecting pipelines, the heater tube outlet is connected with the high-pressure evaporator shell inlet and the low-pressure evaporator shell inlet through connecting pipelines, and the heat exchanger tube outlet is connected with the high-pressure evaporator shell inlet through a connecting pipeline. ​ 2. The hot water unit for use in a plant for the production of butyraldehyde according to claim 1, characterized in that, The medium-pressure steam inlet pipeline is connected with the medium-pressure steam pipeline network at one end, and is connected with the heater shell inlet at the other end; and the medium-pressure condensate outlet pipeline is connected with the heater shell outlet at one end, and is connected with the medium-pressure steam condensate system at the other end.

3. Hot water device in a plant for the production of butyraldehyde according to claim 1 or 2, characterized in that The by-product steam inlet pipeline is connected with the butyraldehyde hydrogenation device steam drum top outlet at one end, and is connected with the heat exchanger shell inlet at the other end; and the by-product condensate outlet pipeline is connected with the heat exchanger shell outlet at one end, and is connected with the low-pressure condensate system at the other end.

4. The hot water unit for use in a butyraldehyde production plant according to claim 1, characterized in that, The air supplement vent is arranged at the top of the hot water tank, and the nitrogen supplement pipeline and the vent pipeline are connected with the air supplement vent.

5. The hot water unit for use in a butyraldehyde production plant according to claim 2, characterized in that, The medium-pressure loop regulating valve and the flow meter are connected in series on the medium-pressure steam inlet pipeline.

6. The hot water unit for use in a butyraldehyde production plant according to claim 1, characterized in that, The high-pressure loop regulating valve and the high-pressure loop temperature meter are connected in series on the connecting pipeline connected between the heater tube outlet and the high-pressure evaporator shell inlet.

7. The hot water unit for use in a butyraldehyde production plant according to claim 1, characterized in that, The low-pressure loop regulating valve and the low-pressure loop temperature meter are connected in series on the connecting pipeline connected between the heater tube outlet and the low-pressure evaporator shell inlet.

8. The hot water unit for use in a butyraldehyde production plant according to claim 1, characterized in that, The parallel regulating valve is connected in parallel at both ends on the corresponding connecting pipeline connected between the heater tube outlet and the heat exchanger tube outlet.

9. The hot water unit for use in a butyraldehyde production plant according to claim 1, characterized in that, The compensation regulating valve is connected at one end on the corresponding connecting pipeline connected with the heat exchanger tube outlet, and is connected at the other end on the connecting pipeline connected with the high-pressure evaporator shell inlet.

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