Residual heat regulation gradient utilization system of carbon disulfide production device

Abstract

The utility model provides a waste heat regulation gradient utilization system of a carbon disulfide production device, which relates to the technical field of waste heat utilization and comprises a steam lithium bromide unit, a sulfur melting unit and a carbon disulfide distillation unit. The inlet ends of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit are communicated with the outlet end of the steam boiler through pipelines, and condensed water outlets of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit are connected with the multi-effect mixing regulator through pipelines; the outlet end of the multi-effect mixing regulator is connected with the distributor through a pipeline, and the outlet end of the distributor is connected with the cascade heat utilization equipment through a pipeline; the condensation water heat of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit is effectively recovered and regulated through the multi-effect mixing regulator and the distributor, so that the condensation water temperature and the hot water quantity meet the requirements of cascade heat utilization equipment, the energy consumption of low-end heat utilization equipment to steam is reduced, and the system is more energy-saving and environment-friendly and is suitable for large-scale popularization and application. And the economic benefit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat utilization, in particular to a waste heat regulating cascade utilization system for a carbon disulfide production device. Background Art

[0002] The carbon disulfide production device uses steam as a heat source for refrigeration of lithium bromide units, melting sulfur in sulfur melting units, and distillation of carbon disulfide. Steam is used for refrigeration of lithium bromide units, melting sulfur in sulfur melting units, and distillation of carbon disulfide. After the work is completed, the steam becomes condensed water. Because the heat energy contained in the steam condensed water accounts for 15-35% of the total energy of steam, if it is directly discharged, it will cause a direct waste of heat energy and water resources, and the steam condensed water may be contaminated during the use of the flow process, so the water quality purification treatment of the steam condensed water is also a problem that needs to be solved;

[0003] In actual production, there are different levels of demand for heat-using equipment. The steam condensate is adjusted to a certain temperature and transported to the low-end cascade heat-using equipment in the next level with demand. If steam is used directly for heating, there is a problem of large energy consumption. Therefore, there is an urgent need for a system with high waste heat utilization rate, steam saving, water resource recycling, energy saving and environmental protection to solve the problems existing in the prior art. Therefore, the utility model proposes a waste heat regulation cascade utilization system for a carbon disulfide production device to solve the problems existing in the prior art. Utility Model Content

[0004] In view of the above problems, the utility model proposes a waste heat regulation and cascade utilization system for a carbon disulfide production device, which reduces the energy consumption of steam by low-end heat-using equipment, is more energy-saving and environmentally friendly, and improves economic benefits.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: a waste heat regulation cascade utilization system for a carbon disulfide production device, comprising a steam lithium bromide unit, a sulfur melting unit and a carbon disulfide distillation unit, wherein the inlet ends of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit are connected to the outlet end of a steam boiler through a pipeline, and the condensate outlets of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit are connected to a multi-effect mixing regulator through a pipeline, the outlet end of the multi-effect mixing regulator is connected to a distributor through a pipeline, and the outlet end of the distributor is connected to a cascade heat-using device through a pipeline;

[0006] The outlet end of the step heat equipment is connected to the water storage filter through a purification pipeline, the condensate distillation outlet of the carbon disulfide distillation unit is connected to the purification pipeline through a pipeline, the outlet end of the water storage filter is connected to the softening water equipment through a pipeline, and the outlet end of the softening water equipment is connected to the inlet end of the steam boiler through a pipeline.

[0007] A further improvement is that the multi-effect mixing regulator is used to mix and recover the heat in multiple steam condensates of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit, so that the temperature of the mixed steam condensates meets the requirements of the cascade heat equipment.

[0008] A further improvement is that the cascade heat-using equipment includes a first-stage heat-using equipment, a second-stage heat-using equipment and a third-stage heat-using equipment.

[0009] A further improvement is that the first-stage heat-using equipment, the second-stage heat-using equipment and the third-stage heat-using equipment are heat-using equipment that use the same amount of hot water or heat-using equipment that use different amounts of hot water.

[0010] A further improvement is that the distributor is provided with at least three outlet ends, and the three outlet ends are respectively connected to the first-stage heat-using equipment, the second-stage heat-using equipment and the third-stage heat-using equipment through pipes, and the distributor is used to respectively adjust the amount of hot water supplied to the first-stage heat-using equipment, the second-stage heat-using equipment and the third-stage heat-using equipment.

[0011] A further improvement is that the carbon disulfide distillation unit discharges condensed water through a condensed water outlet and a condensed water diversion outlet respectively, thereby performing diversion to adjust the amount and temperature of hot water entering the multi-effect mixing regulator.

[0012] A further improvement is that a solenoid valve is provided on the condensed water outlet of the carbon disulfide distillation unit, and the solenoid valve is used to control the opening and closing of the condensed water outlet.

[0013] A further improvement is that the height of the inlet of the water storage filter is higher than the height of the outlet, so that the filtered clean water is collected below the water storage filter, thereby playing a storage buffer role.

[0014] A further improvement is that the interior of the water storage filter is provided with a coarse filter layer, a fine filter layer and an activated carbon adsorption layer in sequence from top to bottom, and the coarse filter layer, the fine filter layer and the activated carbon adsorption layer are used to filter impurities in the water.

[0015] A further improvement is that the water softening equipment has a built-in anion-cation converter, and the anion-cation converter is used to remove calcium, magnesium and sodium ions in water.

[0016] The beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a multi-effect mixing regulator and a distributor, which can effectively recover and adjust the condensate heat of the steam lithium bromide unit, the sulfur melting unit and the carbon disulfide distillation unit, so that the condensate temperature and the amount of hot water can meet the needs of the cascade heat-using equipment, reduce the energy consumption of steam by the low-end heat-using equipment, be more energy-saving and environmentally friendly, and improve the economic benefits.

[0018] 2. The carbon disulfide distillation unit of the utility model discharges condensed water through the condensed water outlet and the condensed water diversion outlet respectively, and performs diversion to adjust the amount and temperature of hot water entering the multi-effect mixing regulator, which makes the adjustment more convenient.

[0019] 3. The utility model sets a water storage filter to purify impurities in steam condensate to meet the water replenishment requirements of the steam boiler, thereby realizing the recycling of steam condensate and reducing the waste of water resources. Among them, the coarse filter layer, the fine filter layer and the activated carbon adsorption layer can filter impurities, and the filtered clean water gathers at the bottom of the water storage filter, playing a role of storage buffer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the utility model;

[0021] Figure 2 It is a schematic diagram of the interior of the water storage filter of the utility model.

[0022] Among them: 1. Steam lithium bromide unit; 2. Sulfur melting unit; 3. Carbon disulfide distillation unit; 4. Steam boiler; 5. Multi-effect mixing regulator; 6. Distributor; 7. Water storage filter; 8. Softening water equipment; 9. First-stage heat-using equipment; 10. Second-stage heat-using equipment; 11. Third-stage heat-using equipment; 12. Coarse filtration layer; 13. Fine filtration layer; 14. Activated carbon adsorption layer. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with an embodiment. The embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.

[0024] Embodiment 1

[0025] according to Figure 1 , 2As shown, this embodiment proposes a waste heat regulation cascade utilization system for a carbon disulfide production device, comprising a steam lithium bromide unit 1, a sulfur melting unit 2 and a carbon disulfide distillation unit 3, wherein the inlet ends of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3 are connected to the outlet end of a steam boiler 4 through a pipeline, and the condensate outlets of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3 are connected to a multi-effect mixing regulator 5 through a pipeline, and the outlet end of the multi-effect mixing regulator 5 is connected to a distributor 6 through a pipeline, and the outlet end of the distributor 6 is connected to a cascade heat-using device through a pipeline;

[0026] The outlet of the cascade heat-using equipment is connected to the water storage filter 7 through a purification pipeline, the condensate outlet of the carbon disulfide distillation unit 3 is connected to the purification pipeline through a pipeline, the outlet of the water storage filter 7 is connected to the softening water device 8 through a pipeline, and the outlet of the softening water device 8 is connected to the inlet of the steam boiler 4 through a pipeline. When in use, the steam of the steam boiler 4 enters the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3, and the discharged condensate enters the multi-effect mixing regulator 5 to mix and recover the heat in multiple streams of steam condensate, and is discharged into the distributor 6 to adjust the amount of hot water supplied to the first cascade heat-using equipment 9, the second cascade heat-using equipment 10 and the third cascade heat-using equipment 11 respectively, and then the water passes into the water storage filter 7 for filtration and storage buffering, and then is discharged into the softening water device 8 for softening, and finally flows back into the steam boiler 4 for recycling.

[0027] The multi-effect mixing regulator 5 is used to mix and recover the heat in the multiple streams of steam condensate of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3, so that the temperature of the mixed steam condensate meets the requirements of the cascade heat-using equipment. The cascade heat-using equipment includes a first cascade heat-using equipment 9, a second cascade heat-using equipment 10 and a third cascade heat-using equipment 11. The first cascade heat-using equipment 9, the second cascade heat-using equipment 10 and the third cascade heat-using equipment 11 are heat-using equipment with the same amount of hot water or heat-using equipment with different amounts of hot water. The multi-effect mixing regulator 5 and the distributor 6 are provided to effectively recover and adjust the heat of the condensate of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3, so that the condensate temperature meets the requirements of the cascade heat-using equipment, reduces the energy consumption of steam by low-end heat-using equipment, is more energy-saving and environmentally friendly, and improves economic benefits.

[0028] The distributor 6 is provided with at least three outlets, and the three outlets are connected to the first-stage heat-using equipment 9, the second-stage heat-using equipment 10 and the third-stage heat-using equipment 11 through pipelines, and the distributor 6 is used to respectively adjust the amount of hot water supplied to the first-stage heat-using equipment 9, the second-stage heat-using equipment 10 and the third-stage heat-using equipment 11. The multi-effect mixing regulator 5 and the distributor 6 are provided to effectively recover and adjust the condensate heat of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3, and respectively adjust the amount of hot water supplied to the heat-using equipment at different stages, so that the condensate temperature and the amount of hot water meet the needs of the heat-using equipment at different stages, reduce the energy consumption of steam by the low-end heat-using equipment, be more energy-saving and environmentally friendly, and improve the economic benefits.

[0029] The carbon disulfide distillation unit 3 discharges condensed water through the condensed water outlet and the condensed water outlet, respectively, thereby performing diversion, which is used to adjust the amount and temperature of hot water entering the multi-effect mixing regulator 5. The condensed water outlet of the carbon disulfide distillation unit 3 is provided with a solenoid valve, and the solenoid valve is used to control the opening and closing of the condensed water outlet. The carbon disulfide distillation unit 3 of the utility model discharges condensed water through the condensed water outlet and the condensed water outlet, respectively, and performs diversion, which is used to adjust the amount and temperature of hot water entering the multi-effect mixing regulator 5, and the adjustment is more convenient.

[0030] Embodiment 2

[0031] according to Figure 1 , 2 As shown, this embodiment proposes a waste heat regulation cascade utilization system for a carbon disulfide production device, comprising a steam lithium bromide unit 1, a sulfur melting unit 2 and a carbon disulfide distillation unit 3, wherein the inlet ends of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3 are connected to the outlet end of a steam boiler 4 through a pipeline, and the condensate outlets of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3 are connected to a multi-effect mixing regulator 5 through a pipeline, and the outlet end of the multi-effect mixing regulator 5 is connected to a distributor 6 through a pipeline, and the outlet end of the distributor 6 is connected to a cascade heat-using device through a pipeline;

[0032] The outlet of the cascade heat-using equipment is connected to the water storage filter 7 through a purification pipeline, the condensate outlet of the carbon disulfide distillation unit 3 is connected to the purification pipeline through a pipeline, the outlet of the water storage filter 7 is connected to the softening water device 8 through a pipeline, and the outlet of the softening water device 8 is connected to the inlet of the steam boiler 4 through a pipeline. When in use, the steam of the steam boiler 4 enters the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3, and the discharged condensate enters the multi-effect mixing regulator 5 to mix and recover the heat in multiple streams of steam condensate, and is discharged into the distributor 6 to adjust the amount of hot water supplied to the first cascade heat-using equipment 9, the second cascade heat-using equipment 10 and the third cascade heat-using equipment 11 respectively, and then the water passes into the water storage filter 7 for filtration and storage buffering, and then is discharged into the softening water device 8 for softening, and finally flows back into the steam boiler 4 for recycling.

[0033] The carbon disulfide distillation unit 3 discharges condensed water through the condensed water outlet and the condensed water outlet, respectively, thereby performing diversion, which is used to adjust the amount and temperature of hot water entering the multi-effect mixing regulator 5. The condensed water outlet of the carbon disulfide distillation unit 3 is provided with a solenoid valve, and the solenoid valve is used to control the opening and closing of the condensed water outlet. The carbon disulfide distillation unit 3 of the utility model discharges condensed water through the condensed water outlet and the condensed water outlet, respectively, and performs diversion, which is used to adjust the amount and temperature of hot water entering the multi-effect mixing regulator 5, and the adjustment is more convenient.

[0034] The height of the inlet of the water storage filter 7 is higher than the height of the outlet, so that the filtered clean water is collected below the water storage filter 7, thereby playing a role of storage buffer. The interior of the water storage filter 7 is provided with a coarse filter layer 12, a fine filter layer 13 and an activated carbon adsorption layer 14 from top to bottom, and the coarse filter layer 12, the fine filter layer 13 and the activated carbon adsorption layer 14 are used to filter impurities in the water. The water storage filter 7 is set to purify impurities in the steam condensate to meet the water replenishment requirements of the steam boiler 4, thereby realizing the recycling of steam condensate and reducing the waste of water resources. Among them, the coarse filter layer 12, the fine filter layer 13 and the activated carbon adsorption layer 14 can filter impurities, and the filtered clean water is gathered at the bottom of the water storage filter 7, which plays a role of storage buffer.

[0035] The water softening device 8 has a built-in anion-cation converter, and the anion-cation converter is used to remove calcium, magnesium, and sodium ions in the water. By using anion-cation softening, water is passed through the anion-cation converter to remove calcium, magnesium, sodium and other ions in the water. The discharged water is only water molecules without other molecules, which can effectively prevent scale.

[0036] The waste heat regulation cascade utilization system of the carbon disulfide production device is provided with a multi-effect mixing regulator 5 and a distributor 6, which effectively recovers and regulates the condensate heat of the steam lithium bromide unit 1, the sulfur melting unit 2 and the carbon disulfide distillation unit 3, so that the condensate temperature and the amount of hot water meet the requirements of the cascade heat-using equipment, reduce the energy consumption of the low-end heat-using equipment on steam, are more energy-saving and environmentally friendly, and improve economic benefits. In addition, the carbon disulfide distillation unit 3 of the utility model discharges the condensate through the condensate outlet and the condensate diversion outlet respectively, and performs diversion to adjust the amount and temperature of the hot water entering the multi-effect mixing regulator 5, which is more convenient to adjust. At the same time, the utility model is provided with a water storage filter 7 to purify the impurities of the steam condensate to meet the water replenishment requirements of the steam boiler 4, thereby realizing the recycling of the steam condensate and reducing the waste of water resources. Among them, the coarse filter layer 12, the fine filter layer 13 and the activated carbon adsorption layer 14 can filter impurities, and the filtered clean water is gathered at the bottom of the water storage filter 7, which plays a role of storage buffer.

[0037] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A waste heat regulation and cascade utilization system for a carbon disulfide production device, comprising a steam lithium bromide unit (1), a sulfur melting unit (2) and a carbon disulfide distillation unit (3), characterized in that: The inlet ends of the steam lithium bromide unit (1), the sulfur melting unit (2) and the carbon disulfide distillation unit (3) are connected to the outlet end of the steam boiler (4) through pipelines, and the condensate outlets of the steam lithium bromide unit (1), the sulfur melting unit (2) and the carbon disulfide distillation unit (3) are connected to the multi-effect mixing regulator (5) through pipelines, the outlet end of the multi-effect mixing regulator (5) is connected to the distributor (6) through pipelines, and the outlet end of the distributor (6) is connected to the cascade heat-using equipment through pipelines; The outlet end of the step heat equipment is connected to the water storage filter (7) through a purification pipeline, the condensate outlet of the carbon disulfide distillation unit (3) is connected to the purification pipeline through a pipeline, the outlet end of the water storage filter (7) is connected to the softening water equipment (8) through a pipeline, and the outlet end of the softening water equipment (8) is connected to the inlet end of the steam boiler (4) through a pipeline.

2. A waste heat regulation and cascade utilization system for a carbon disulfide production device according to claim 1, characterized in that: The multi-effect mixing regulator (5) is used to mix and recover the heat in multiple streams of steam condensate from the steam lithium bromide unit (1), the sulfur melting unit (2) and the carbon disulfide distillation unit (3), so that the temperature of the mixed steam condensate meets the requirements of the cascade heat-using equipment.

3. A waste heat regulation cascade utilization system for a carbon disulfide production device according to claim 2, characterized in that: The cascade heat-using equipment comprises a first cascade heat-using equipment (9), a second cascade heat-using equipment (10) and a third cascade heat-using equipment (11).

4. A waste heat regulation cascade utilization system for a carbon disulfide production device according to claim 3, characterized in that: The first-stage heat-using equipment (9), the second-stage heat-using equipment (10) and the third-stage heat-using equipment (11) are heat-using equipment that use the same amount of hot water or heat-using equipment that use different amounts of hot water.

5. The waste heat regulation and cascade utilization system of a carbon disulfide production device according to claim 4 is characterized in that: The distributor (6) is provided with at least three outlet ends, and the three outlet ends are respectively connected to the first-stage heat-using equipment (9), the second-stage heat-using equipment (10) and the third-stage heat-using equipment (11) through pipelines. The distributor (6) is used to adjust the amount of hot water supplied to the first-stage heat-using equipment (9), the second-stage heat-using equipment (10) and the third-stage heat-using equipment (11).

6. The waste heat regulation and cascade utilization system of a carbon disulfide production device according to claim 1 is characterized in that: The carbon disulfide distillation unit (3) discharges condensed water through the condensed water outlet and the condensed water diversion outlet respectively, thereby performing diversion to adjust the amount and temperature of hot water entering the multi-effect mixing regulator (5).

7. A waste heat regulation and cascade utilization system for a carbon disulfide production device according to claim 6, characterized in that: A solenoid valve is provided on the condensed water outlet of the carbon disulfide distillation unit (3), and the solenoid valve is used to control the opening and closing of the condensed water outlet.

8. The waste heat regulation and cascade utilization system of a carbon disulfide production device according to claim 1 is characterized in that: The height of the inlet of the water storage filter (7) is higher than the height of the outlet, so that the filtered clean water is collected below the water storage filter (7), thereby playing a storage buffer role.

9. A waste heat regulation and cascade utilization system for a carbon disulfide production device according to claim 8, characterized in that: The interior of the water storage filter (7) is provided with a coarse filtration layer (12), a fine filtration layer (13) and an activated carbon adsorption layer (14) in sequence from top to bottom, and the coarse filtration layer (12), the fine filtration layer (13) and the activated carbon adsorption layer (14) are used to filter impurities in water.

10. The waste heat regulation and cascade utilization system of a carbon disulfide production device according to claim 1, characterized in that: The water softening device (8) has a built-in anion-cation converter, and the anion-cation converter is used to remove calcium, magnesium and sodium ions in water.

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