A distillation apparatus energy recovery system

Abstract

The utility model discloses a distillation device energy recycling system belongs to heat energy recovery technical field, including live steam pipeline, wine retort and condenser, live steam pipeline and wine retort intercommunication, the condenser has the secondary steam evaporation chamber, vapour chamber, cooling water chamber and the wine room of arranging in proper order in it, and the vapour cylinder of wine retort top is connected with vapour chamber, and the cooling pipe of cooling water chamber is penetrated between vapour chamber and wine room and is connected, and still have the hot water pipe of heat exchange water in cooling water chamber and secondary steam evaporation chamber between cooling water chamber and secondary steam evaporation chamber and be connected with the pump of sending to secondary steam evaporation chamber, and still have secondary steam delivery pipeline between secondary steam evaporation chamber and live steam pipeline, and still be installed with steam compressor on secondary steam delivery pipeline. The utility model discloses on the basis of not changing the present distillation wine mode, effectively recycles the steam of producing in the white spirit distillation process, has improved the production level of the wine enterprise, has reduced the energy consumption, has reduced the discharge.

Description

Technical Field

[0001] This utility model belongs to the field of heat energy recovery technology, specifically, it relates to an energy recovery and utilization system for a distillation device. Background Technology

[0002] The distillation process of baijiu (Chinese liquor) involves distillation and cooking stages according to technological requirements. The cooking stage consumes a significant amount of steam, and the waste steam, being at atmospheric pressure, is difficult to recover and reuse. Currently, except for its use in heating a small amount of process water, it is not collected and is directly released into the atmosphere. This not only results in energy waste but also causes environmental pollution due to the condensation of waste steam into mist and droplets, and adversely affects the factory buildings. Utility Model Content

[0003] The purpose of this invention is to provide an energy recovery and utilization system for a distillation apparatus. Without changing the existing distillation process, it effectively recovers the waste steam generated during the distillation of baijiu, thereby improving the production level of distilleries, reducing energy consumption, and lowering emissions.

[0004] To achieve the purpose of this utility model, the technical solution adopted is as follows: an energy recovery and utilization system for a distillation apparatus, comprising a live steam pipe, a still, and a condenser. The live steam pipe is connected to the still. The condenser has a secondary steam evaporation chamber, a steam chamber, a cooling water chamber, and a receiving chamber arranged in sequence. The steam passage at the top of the still is connected to the steam chamber. A cooling pipe that penetrates the cooling water chamber is connected between the steam chamber and the receiving chamber. A hot water pipe that pumps the hot water in the cooling water chamber to the secondary steam evaporation chamber for evaporation is also connected between the cooling water chamber and the secondary steam evaporation chamber. A secondary steam delivery pipe is also connected between the secondary steam evaporation chamber and the live steam pipe. A steam compressor is also installed on the secondary steam delivery pipe.

[0005] Furthermore, a steam ejector is also installed on the live steam pipeline, and the output end of the secondary steam delivery pipeline is connected to the steam ejector.

[0006] Furthermore, the output end of the medium-low temperature cooling water outlet pipe is also connected to a cooling water storage tank, and the outlet of the cooling water storage tank is connected to a circulating water return pump through a pipe.

[0007] Furthermore, a gas delivery pipeline is also connected between the top of the cooling water storage tank and the secondary steam delivery pipeline.

[0008] Furthermore, a steam distribution cylinder is installed at the output end of the live steam pipe, and the outlet of the steam distribution cylinder is connected to the still through a branch steam pipe.

[0009] Furthermore, the bottom of the receiving chamber is connected to a wine discharge pipe, and the cooling water chamber is connected to a cooling water inlet pipe and a medium-low temperature cooling water outlet pipe.

[0010] Furthermore, there are multiple stills and condensers. The inlet ends of multiple branch steam pipes are all connected to the steam distribution cylinder, or the outlet ends of the live steam pipes are respectively connected to multiple stills. The outlet ends of multiple discharging pipes are connected together, and the inlet ends of multiple cooling water inlet pipes are connected together. The outlet ends of multiple medium and low temperature cooling water outlet pipes are connected together to the cooling water storage tank, and the outlet ends of multiple secondary steam conveying pipes are connected together to the steam compressor.

[0011] Furthermore, the condenser includes a shell and a top cover covering the top of the shell, a secondary steam evaporation chamber is formed inside the top cover, and the steam chamber, cooling water chamber and wine receiving chamber are separated by a partition provided inside the shell.

[0012] Furthermore, the top of the shell is arched, and a coil connected to a hot water pipe is installed on the upper part of the secondary steam evaporation chamber. A nozzle is installed on the coil to spray the high-temperature water transported by the hot water pipe onto the top of the shell. A pump connected to the upper part of the cooling water chamber is also installed on the shell, and the inlet end of the hot water pipe is connected to the outlet end of the pump.

[0013] Furthermore, the steam chamber is also equipped with a steam distribution plate, and the inlet end of the cooling pipe is located on the lower side of the steam distribution plate.

[0014] Furthermore, the condenser is also equipped with an aldehyde removal pipe that communicates with the top of the wine receiving chamber.

[0015] Furthermore, the bottom of the secondary steam evaporation chamber is connected to the upper part of the cooling water chamber by a return pipe, which is also connected to a return pipe for collecting residual hot water that has not been evaporated into secondary steam, and the outlet end of the return pipe is connected to the cooling water chamber.

[0016] Furthermore, the highest point of the medium-low temperature cooling water outlet pipe is located between the inlet end of the hot water pipe and the bottom of the secondary steam evaporation chamber.

[0017] The beneficial effects of this utility model are: This invention employs a specially designed condenser, which not only achieves the circulation of cooling water but also utilizes spray and droplets to combine with the steam in the secondary steam evaporation chamber for heat exchange, thereby improving evaporation efficiency. Simultaneously, a steam compressor is used to pressurize and heat the secondary steam, increasing its thermal energy grade. After mixing with the primary steam, the secondary steam is reused in the distillation process, effectively recovering and utilizing the energy of the distillation device to achieve energy conservation and emission reduction.

[0018] In addition, this invention effectively recovers the waste steam generated during the distillation of baijiu without changing the existing distillation process, thereby improving the production level of wineries, reducing energy consumption, lowering emissions, and increasing production efficiency. Attached Figure Description

[0019] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0020] Figure 1 This is a flowchart of the energy recovery and utilization system of the distillation apparatus provided in Example 1; Figure 2 This is a structural diagram of the condenser; Figure 3 This is a flowchart of the energy recovery and utilization system of the distillation apparatus provided in Example 2.

[0021] The attached diagram shows the markings and corresponding component names: 1. Live steam pipe, 2. Steam ejector, 3. Steam cylinder, 4. Branch steam pipe, 5. Distillation still, 6. Steam duct, 7. Condenser, 8. Secondary steam delivery pipe, 9. Steam compressor, 10. Discharge pipe, 11. Cooling water inlet pipe, 12. Medium and low temperature cooling water outlet pipe, 13. Formaldehyde discharge pipe, 14. Cooling water storage tank, 15. Circulating water return pump, 16. Gas delivery pipeline; 701. Shell, 702. Top cover, 703. Secondary steam evaporation chamber, 704. Steam chamber, 705. Cooling water chamber, 706. Wine receiving chamber, 707. Steam distribution plate, 708. Cooling pipe, 709. Hot water pipe, 710. Pump, 711. Coil, 712. Nozzle, 713. Return pipe. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0023] It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0024] Example 1 like Figure 1 , Figure 2As shown, the present invention provides an energy recovery and utilization system for a distillation apparatus, including a live steam pipe 1, a still 5, and a condenser 7; the live steam pipe 1 is connected to the still 5 and is used to transport high-temperature steam generated by a boiler into the still 5, and the high-temperature steam entering the still 5 cooks the fermented material in the still 5; the condenser 7 is used to condense the steam generated during the cooking process of the still 5 into alcohol. The condenser 7 contains, from top to bottom, a secondary steam evaporation chamber 703, a steam chamber 704, a cooling water chamber 705, and a receiving chamber 706. During operation, the cooling water chamber 705 is filled with cooling water, and the top of the still 5 is connected to a steam passage 6 for delivering steam. The outlet end of the steam passage 6 is connected to the steam chamber 704, allowing the steam generated during the still 5 to enter the steam chamber 704 through the steam passage 6. Since the steam chamber 704 is adjacent to the cooling water chamber 705, the high-temperature steam entering the steam chamber 704 first exchanges heat with the cooling water in the cooling water chamber 705, thus reducing the heat loss of the high-temperature steam in the steam chamber 704. The steam achieves initial cooling; simultaneously, multiple cooling pipes 708 connect the steam chamber 704 and the wine receiving chamber 706. These cooling pipes 708 penetrate the cooling water chamber 705, placing them inside the cooling water chamber 705, but without connecting them. This allows the steam in the steam chamber 704 to fully exchange with the cooling water in the cooling water chamber 705 as it passes through the cooling pipes 708 into the wine receiving chamber 706, enabling the steam to fully condense. The condensate formed after condensation automatically enters the wine receiving chamber 706 by its own weight for collection and discharge.

[0025] A hot water pipe 709 is also connected between the cooling water chamber 705 and the secondary steam evaporation chamber 703. This hot water pipe 709 is used to pump the hot water after heat exchange with steam in the cooling water chamber 705 to the secondary steam evaporation chamber 703, and to allow the hot water to exchange heat with the steam in the steam chamber 704 after entering the secondary steam evaporation chamber 703 to form secondary steam. Since the steam temperature entering the steam chamber 704 is the highest, the temperature of the cooling water in the cooling water chamber 705 is higher the closer it is to the steam chamber 704. In order to improve the efficiency of secondary steam generation in the secondary steam evaporation chamber 703, the inlet end of the hot water pipe 709 can be connected to the top of the cooling water chamber 705, so that the temperature of the hot water sent into the secondary steam evaporation chamber 703 through the hot water pipe 709 is higher. This allows the hot water to evaporate as much as possible when it enters the secondary steam evaporation chamber 703 and exchanges heat with the steam in the steam chamber 704, thus making the secondary steam generation in the secondary steam evaporation chamber 703 more efficient.

[0026] To utilize the secondary steam generated in the secondary steam evaporation chamber 703, a secondary steam delivery pipe 8 is connected between the top of the secondary steam evaporation chamber 703 and the live steam pipe 1. This allows the secondary steam generated in the secondary steam evaporation chamber 703 to be transported through the secondary steam delivery pipe 8 to the live steam pipe 1 to mix with the high-temperature steam generated by the boiler, thereby being used to cook the fermented material in the still 5. Since the steam pressure generated in the secondary steam evaporation chamber 703 is relatively low and cannot meet the cooking requirements of the still 5, and to prevent steam from the live steam pipe 1 from entering the secondary steam evaporation chamber 703 through the secondary steam delivery pipe 8, a steam compressor 9 is installed on the secondary steam delivery pipe 8. The steam compressor 9 not only pressurizes the secondary steam generated in the secondary steam evaporation chamber 703 but also ensures that the pressurized secondary steam smoothly enters the live steam pipe 1 to mix with the high-temperature steam generated by the boiler, thus guaranteeing the cooking requirements of the still 5.

[0027] In addition, to facilitate the discharge of the wine collected in the receiving chamber 706, a wine discharge pipe 10 connected to the receiving chamber 706 is installed on the condenser 7. To ensure more thorough discharge of the wine in the receiving chamber 706, the inlet end of the wine discharge pipe 10 is located at the bottom of the receiving chamber 706. To supply cooling water to the cooling water chamber 705, a cooling water inlet pipe connected to the cooling water chamber 705 is installed on the condenser 7, and the outlet end of the cooling water inlet pipe is located at the bottom of the cooling water chamber 705. To discharge the heat exchanged water in the cooling water chamber 705, a medium-low temperature cooling water outlet pipe 12 connected to the cooling water chamber 705 is installed on the condenser 7. The inlet end of the medium-low temperature cooling water outlet pipe 12 is located at the upper part of the cooling water chamber 705 and below the inlet end of the hot water pipe 709, thereby ensuring the temperature of the heat exchanged water entering the secondary steam evaporation chamber 703 as much as possible.

[0028] In this invention, although the low-pressure secondary steam generated in the secondary steam evaporation chamber 703 is compressed by the steam compressor 9 before entering the live steam pipe 1 to mix with the high-pressure steam, the pressure of the secondary steam after being compressed by the steam compressor 9 may still be lower than that of the high-pressure steam in the live steam pipe 1. Therefore, in order to ensure that the high-pressure steam in the live steam pipe 1 mixes with the low-pressure secondary steam generated in the secondary steam evaporation chamber 703, a steam ejector 2 is also provided on the live steam pipe 1, and the output end of the secondary steam conveying pipe 8 is connected to the low-pressure steam inlet of the steam ejector 2.

[0029] In this invention, to facilitate the recycling of the medium-low temperature cooling water discharged from the medium-low temperature cooling water outlet pipe 12 for secondary use, a cooling water storage tank 14 is also connected to the output end of the medium-low temperature cooling water outlet pipe 12. The cooling water storage tank 14 can temporarily store the medium-low temperature cooling water discharged from the medium-low temperature cooling water outlet pipe 12, and the outlet of the cooling water storage tank 14 is connected to a circulating water return pump 15 through a pipe, so that the medium-low temperature cooling water temporarily stored in the cooling water storage tank 14 can be discharged or transported to the next equipment as needed by the circulating water return pump 15.

[0030] In this invention, since the cooling water storage tank 14 stores the hot water discharged from the cooling water chamber 705, which has a certain temperature, the hot water will still generate some steam after entering the cooling water storage tank 14. In order to make the most of this steam, a gas delivery pipeline 16 can be connected between the top of the cooling water storage tank 14 and the secondary steam delivery pipeline 8. The outlet end of the gas delivery pipeline 16 is located between the secondary steam evaporation chamber 703 and the steam compressor 9, so that the steam in the cooling water storage tank 14 and the steam in the secondary steam evaporation chamber 703 are mixed and then compressed in the steam compressor 9 to form high-quality steam.

[0031] In this invention, there are multiple stills 5 and condensers 7, with the number of stills 5 equal to the number of condensers 7. Each still 5 corresponds to one condenser 7. The outlet end of the live steam pipe 1 is connected to multiple stills 5, allowing the high-temperature steam transported by the live steam pipe 1 to be supplied to each still 5, enabling each still 5 to be cooked by the high-temperature steam transported by the live steam pipe 1. Simultaneously, to facilitate the control of the high-temperature steam entering each still 5, control valves and steam regulating valves are installed at the inlet end of the live steam pipe 1 and between the live steam pipe 1 and each still 5. To facilitate the collection of the condensed liquid produced in each condenser 7, the outlet ends of multiple discharge pipes 10 are connected together. To facilitate the supply of cooling water to the cooling water chambers 705 of each condenser 7, the inlet ends of multiple cooling water inlet pipes 11 are connected together. Each cooling water inlet pipe 11 is also equipped with a switch valve and a cooling water circulation regulating valve, and is connected to a cooling water supply source after the inlet ends of the multiple cooling water inlet pipes 11 are connected together. To facilitate the discharge of the hot water from the cooling water chambers 705 of each condenser 7 into the cooling water storage tank 14, the outlet ends of the medium-low temperature cooling water outlet pipes 12 on each condenser 7 are connected together and connected to the cooling water storage tank 14. To facilitate the joint delivery of low-temperature steam generated in multiple secondary steam evaporation chambers 703 to the live steam pipe 1, the outlet ends of multiple secondary steam delivery pipes 8 are connected to the inlet end of the steam compressor 9, and a pipe connects the outlet end of the steam compressor 9 to the low-pressure steam inlet of the steam ejector 2.

[0032] In this invention, for the formation of the secondary steam evaporation chamber 703, steam chamber 704, cooling water chamber 705, and wine receiving chamber 706 in the condenser 7, as follows: Figure 2 As shown, the condenser 7 includes a shell 701 and a top cover 702 covering the top of the shell 701. The top cover 702 and the top of the shell 701 together form a secondary steam evaporation chamber 703. Simultaneously, two partitions arranged vertically at intervals are also provided inside the shell 701, dividing the interior of the shell 701 into a steam chamber 704, a cooling water chamber 705, and a wine receiving chamber 706 arranged sequentially from top to bottom. This design ensures that the secondary steam evaporation chamber 703 is separated from the steam chamber 704, the steam chamber 704 from the cooling water chamber 705, and the cooling water chamber 705 from the wine receiving chamber 706 by a single partition. This improves the heat exchange effect between the secondary steam evaporation chamber 703 and the steam chamber 704, the steam chamber 704 and the cooling water chamber 705, and the cooling water chamber 705 and the wine receiving chamber 706, thus ensuring both the effective generation of secondary steam in the secondary steam evaporation chamber 703 and the effective condensation of steam in the steam chamber 704.

[0033] To further improve the effect of secondary steam generation in the secondary steam evaporation chamber 703, the top of the shell 701 can be arched, and a coil 711 can be installed on the top of the secondary steam evaporation chamber 703. The center of the coil 711 is located on the central axis of the shell 701. The inlet end of the coil 711 is connected to the outlet end of the hot water pipe 709, and multiple nozzles 712 connected to its interior are also installed on the coil 711. These nozzles 712 are atomizing nozzles 712, which can evenly spray the hot water entering the coil 711 onto the shell 701. At the top of the housing 701, during the process of spraying hot water from the nozzle 712, the high temperature of the secondary steam evaporation chamber 703 increases due to the high temperature of the steam in the steam chamber 704. This causes the hot water sprayed from the nozzle 712 to come into contact with the high temperature in the secondary steam evaporation chamber 703, generating secondary steam. At the same time, the remaining hot water after evaporation from the nozzle 712 acts on the top of the housing 701, forming a water film on the top of the housing 701. Combined with the high temperature of the steam in the steam chamber 704, the water film on the top of the housing 701 can be fully evaporated to form secondary steam. Therefore, in this invention, the hot water sprayed through the nozzle 712 can evaporate to form secondary steam before falling onto the top of the housing 701, and can also evaporate to form secondary steam after falling onto the top of the housing 701, thus increasing the efficiency of secondary steam generation in the secondary steam evaporation chamber 703. At the same time, by setting the top of the housing 701 to an arch shape, the heat exchange surface between the secondary steam evaporation chamber 703 and the steam chamber 704 is larger, so that the remaining hot water sprayed through the nozzle 712 after evaporation can fully exchange heat and evaporate when it reaches the top of the housing 701.

[0034] In this invention, to ensure that the steam in the steam chamber 704 can evenly enter each cooling pipe 708 after initial heat exchange, a steam distribution plate 707 is also supported on the partition separating the steam chamber 704 and the cooling water chamber 705. The steam distribution plate 707 is conical and has through holes evenly distributed on it. At this time, the inlet ends of multiple cooling pipes 708 pass through the partition separating the steam chamber 704 and the cooling water chamber 705 and are flush with the surface of the partition. The inlet ends of multiple cooling pipes 708 are located on the lower side of the steam distribution plate 707. This not only allows the liquid condensed in the steam chamber 704 to enter the cooling pipes 708 as much as possible and enter the receiving chamber 706 along the cooling pipes 708, but also allows the steam in the steam chamber 704 to evenly enter each cooling pipe 708 after passing through the steam distribution plate 707, avoiding the steam in the steam chamber 704 from directly and quickly entering the receiving chamber 706 through the cooling pipes 708, thus improving the condensation effect of the steam.

[0035] In order to facilitate the discharge of non-condensable vapors entering the wine receiving chamber 706, the condenser 7 is also equipped with an aldehyde discharge pipe 13 that communicates with the top of the wine receiving chamber 706, so that the non-condensable vapors in the wine receiving chamber 706 can be discharged from the condenser 7 through the aldehyde discharge pipe 13.

[0036] Because some hot water remains in the secondary steam evaporation chamber 703 during the generation of secondary steam, a return pipe 713 is connected between the bottom of the secondary steam evaporation chamber 703 and the upper part of the cooling water chamber 705 to remove this incompletely evaporated hot water. This allows the incompletely evaporated hot water in the secondary steam evaporation chamber 703 to flow back into the cooling water chamber 705 via the return pipe 713. Due to the height difference between the secondary steam evaporation chamber 703 and the cooling water chamber 705, the incompletely evaporated hot water in the secondary steam evaporation chamber 703 can also flow back into the cooling water chamber 705 by its own weight along the hot water pipe 709.

[0037] In order to enable the heat exchanged water in the upper part of the cooling water chamber 705 and the steam chamber 704 to be pumped into the coil 711 through the hot water pipe 709 and sprayed out from the nozzle 712, a pumping pump 710 is also installed on the hot water pipe 709. The pumping pump 710 can be directly fixed to the outer wall of the condenser 7 during installation. Through the pumping of the pumping pump 710, the heat exchanged water in the upper part of the cooling water chamber 705 can smoothly enter the coil 711 and be sprayed out from the nozzle 712.

[0038] In order to ensure that the incompletely evaporated hot water in the secondary steam evaporation chamber 703 can smoothly enter the upper part of the cooling water chamber 705, and that the excess hot water in the cooling water chamber 705 can smoothly be discharged into the cooling water storage tank 14, the highest point of the medium and low temperature cooling water outlet pipe 12 is designed to be no lower than the inlet end of the hot water pipe 709, and the highest point of the medium and low temperature cooling water outlet pipe 12 is no higher than the bottom of the secondary steam evaporation chamber 703.

[0039] During the production process, the high-pressure steam generated by the boiler is transported through the live steam pipeline 1. During the transport process, it passes through the steam ejector 2 and enters each still 5. In this process, the water source provides cooling water to the cooling water chamber 705 of each condenser 7 through the cooling water inlet pipeline 11.

[0040] High-temperature steam entering the still 5 cooks the materials inside. During the cooking process, the steam generated in the still 5 enters the steam chamber 704 through the steam pipe 6. In the steam chamber 704, the steam exchanges heat with the cooling water in the upper part of the cooling water chamber 705, causing preliminary condensation of the steam. The condensed liquid is deposited on the baffle plate and flows along the cooling water pipe towards the receiving chamber 706. Uncondensed steam in the steam chamber 704 passes through the steam distributor 707 and then evenly enters each cooling pipe 708, flowing along the cooling pipe 70... The steam flows into the receiving chamber 706. As the steam passes through the cooling pipe 708, it exchanges heat with the cooling water in the cooling water chamber 705, causing the steam entering the cooling pipe 708 to fully condense and enter the receiving chamber 706 along the cooling pipe 708. Finally, the condensed liquid collects in the receiving chamber 706 and is discharged through the discharge pipe 10 connected to the receiving chamber 706. The liquid discharged from multiple discharge pipes is finally collected and sent to the liquid storage tank. The non-condensable vapors in the multiple receiving chambers 706 are discharged through the aldehyde discharge pipe 13.

[0041] Simultaneously, the pump 710 draws the hot water from the upper part of the cooling water chamber 705 into the coil 711. The hot water entering the coil 711 is sprayed into the secondary steam evaporation chamber 703 through the nozzle 712. At this time, during the condensation process of the steam in the steam chamber 704, the temperature in the steam chamber 704 is transferred to the secondary steam evaporation chamber 703. When the nozzle 712 sprays water mist, the water mist exchanges heat with the high temperature in the secondary steam evaporation chamber 703, causing the water mist to evaporate and generate steam. At the same time, the water mist sprayed by the nozzle 712 falls onto the top of the shell 701 before it is completely evaporated, forming a water film on the top of the shell 701. This water film exchanges heat with the high temperature steam in the steam chamber 704, causing the water film on the top of the shell 701 to generate steam. The steam generated in the secondary steam evaporation chamber 703 of multiple condensers 7 is transported to the steam compressor 9 through the secondary steam delivery pipe 8. After being compressed by the steam compressor 9, it is sent into the steam ejector 2 to mix with the high-pressure and high-temperature steam in the live steam pipe 1. After mixing, it enters each still 5 for reuse.

[0042] When the hot water entering the coil 711 is sprayed into the secondary steam evaporation chamber 703 through the nozzle 712 to generate secondary steam, the hot water that is not completely evaporated in the secondary steam evaporation chamber 703 settles at the bottom of the secondary steam evaporation chamber 703 and flows back to the cooling water chamber 705 by its own weight along the return pipe 713.

[0043] During the operation of condenser 7, in order to ensure the condensation effect of high-temperature steam in steam chamber 704 and the evaporation of hot water in secondary steam evaporation chamber 703, cooling water can be continuously supplied to cooling water chamber 705 through cooling water inlet pipe 11. When there is too much cooling water in cooling water chamber 705, the cooling water in cooling water chamber 705 can automatically overflow into cooling water storage tank 14 through medium and low temperature cooling water outlet pipe 12 for temporary storage. When there is too much hot water in cooling water storage tank 14 or when subsequent equipment needs to use the hot water in cooling water storage tank 14, the circulating water return pump 15 can be started to pump the hot water in cooling water storage tank 14. At the same time, the steam generated in cooling water storage tank 14 can be transported to secondary steam transmission pipe 8 through gas transmission pipe 16 to mix with the steam generated in secondary steam evaporation chamber 703, and then compressed by steam compressor 9 and transported to steam ejector 2 to mix with high-temperature and high-pressure steam provided by boiler, so that the steam generated in cooling water storage tank 14 can also be rationally utilized.

[0044] Example 2 like Figure 3As shown, this embodiment 2 provides an energy recovery and utilization system for a distillation apparatus. The difference between this embodiment 2 and embodiment 1 is that a steam distributor 3 is installed at the outlet end of the live steam pipe 1, and a branch steam pipe 4 is connected to each outlet of the steam distributor 3. The branch steam pipes 4 are connected to each still 5, so that the high-pressure, high-temperature steam supplied by the boiler, or the high-pressure, high-temperature steam supplied by the boiler mixed with the low-pressure steam generated by the secondary steam evaporation chamber 703, discharged through the live steam pipe 1, is distributed through the steam distributor 3 and sent to each still 5 through each branch steam pipe 4 for distillation. In operation, the other steps of the energy recovery and utilization system for the distillation apparatus provided in this embodiment are the same as those in the energy recovery and utilization system for the distillation apparatus provided in embodiment 1.

[0045] Compared with the existing technology, this utility model, without changing the existing distillation process, utilizes the high-temperature hot water in the upper part of the condenser 7 and sprays it into the secondary steam evaporation chamber 703. Secondary steam is generated through flash evaporation and water film mass transfer evaporation. The secondary steam is then pressurized and heated to improve its thermal energy quality. It is then mixed with the high-pressure and high-temperature steam generated by the boiler for distillation, effectively realizing the recovery of heat energy in the distillation process and achieving the goal of energy saving and emission reduction.

[0046] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present invention.

Claims

1. An energy recovery and utilization system for a distillation apparatus, characterized in that, The system includes a live steam pipe (1), a still (5), and a condenser (7). The live steam pipe (1) is connected to the still (5). The condenser (7) has a secondary steam evaporation chamber (703), a steam chamber (704), a cooling water chamber (705), and a receiving chamber (706) arranged in sequence. The steam pipe (6) at the top of the still (5) is connected to the steam chamber (704). A through cooling water chamber connects the steam chamber (704) and the receiving chamber (706). The cooling pipe (708) of the cooling water chamber (705) is connected to the secondary steam evaporation chamber (703), and a hot water pipe (709) is connected between the cooling water chamber (705) and the secondary steam evaporation chamber (703) to pump the hot water in the cooling water chamber (705) to the secondary steam evaporation chamber (703) for evaporation. A secondary steam conveying pipe (8) is also connected between the secondary steam evaporation chamber (703) and the live steam pipe (1). A steam compressor (9) is also installed on the secondary steam conveying pipe (8).

2. The energy recovery and utilization system for the distillation apparatus according to claim 1, characterized in that, The live steam pipe (1) is also equipped with a steam ejector (2), and the output end of the secondary steam conveying pipe (8) is connected to the steam ejector (2).

3. The energy recovery and utilization system for the distillation apparatus according to claim 1, characterized in that, The cooling water chamber (705) is connected to a cooling water inlet pipe (11) and a medium-low temperature cooling water outlet pipe (12). The output end of the medium-low temperature cooling water outlet pipe (12) is also connected to a cooling water storage tank (14), and the outlet of the cooling water storage tank (14) is connected to a circulating water return pump (15) through a pipe.

4. The energy recovery and utilization system for the distillation apparatus according to claim 3, characterized in that, A gas delivery pipeline (16) is also connected between the top of the cooling water storage tank (14) and the secondary steam delivery pipeline (8).

5. The energy recovery and utilization system for the distillation apparatus according to claim 3, characterized in that, The output end of the live steam pipe (1) is also equipped with a steam distribution cylinder (3), and the outlet of the steam distribution cylinder (3) is connected to the still (5) through a branch steam pipe (4).

6. The energy recovery and utilization system for a distillation apparatus according to claim 5, characterized in that, The still (5) and condenser (7) are multiple. The inlet ends of multiple branch steam pipes (4) are connected to the steam distribution cylinder (3), or the outlet ends of the live steam pipe (1) are connected to multiple stills (5). The bottom of the receiving chamber (706) is connected to the discharge pipe (10). The outlet ends of multiple discharge pipes (10) are connected together. The inlet ends of multiple cooling water inlet pipes (11) are connected together. The outlet ends of multiple medium and low temperature cooling water outlet pipes (12) are connected together to the cooling water storage tank (14). The outlet ends of multiple secondary steam conveying pipes (8) are connected together to the steam compressor (9).

7. The energy recovery and utilization system for a distillation apparatus according to claim 1, characterized in that, The condenser (7) includes a shell (701) and a top cover (702) covering the top of the shell (701). A secondary steam evaporation chamber (703) is formed inside the top cover (702), and the steam chamber (704), cooling water chamber (705) and wine receiving chamber (706) are separated by a partition provided inside the shell (701).

8. The energy recovery and utilization system for the distillation apparatus according to claim 7, characterized in that, The top of the housing (701) is arched, and a coil (711) connected to the hot water pipe (709) is installed on the upper part of the secondary steam evaporation chamber (703). A nozzle (712) is installed on the coil (711) to spray the high-temperature water transported by the hot water pipe (709) onto the top of the housing (701). A pump (710) connected to the upper part of the cooling water chamber (705) is also installed on the housing (701), and the inlet end of the hot water pipe (709) is connected to the outlet end of the pump (710).

9. The energy recovery and utilization system for a distillation apparatus according to claim 1, characterized in that, The bottom of the secondary steam evaporation chamber (703) is also connected to a return pipe (713) for collecting residual hot water that has not been evaporated into secondary steam, and the outlet end of the return pipe (713) is connected to the cooling water chamber (705).

10. The energy recovery and utilization system for a distillation apparatus according to claim 3, characterized in that, The highest point of the medium-low temperature cooling water outlet pipe (12) is located between the inlet end of the hot water pipe (709) and the bottom of the secondary steam evaporation chamber (703).

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