CN216725789U - Reboiler with waste heat recovery utilizes structure based on energy-conserving production - Google Patents
Reboiler with waste heat recovery utilizes structure based on energy-conserving production Download PDFInfo
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- CN216725789U CN216725789U CN202123265351.XU CN202123265351U CN216725789U CN 216725789 U CN216725789 U CN 216725789U CN 202123265351 U CN202123265351 U CN 202123265351U CN 216725789 U CN216725789 U CN 216725789U
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Abstract
The utility model discloses a reboiler with waste heat recovery utilizes structure based on energy-conserving production, including the reboiler casing, reboiler casing top and bottom are provided with steam outlet pipe and bottom liquid outlet pipe respectively, and reboiler casing one side is close to the bottom and is provided with the feed inlet pipe, and the opposite side is close to the top and is provided with reflux liquid import pipe and steam inlet pipe respectively with the bottom. The utility model discloses a be equipped with heat transfer device, carry out the heat transfer through heat transfer coil to material inlet pipe and reflux import pipe, and at the in-process of heat transfer, through first steam branch pipe and second steam branch pipe, with partial steam emission to heat transfer device inside, further heat raw materials and reflux, thereby make raw materials and reflux rise at the initial temperature that gets into reboiler when inside, thereby be convenient for fast gasification, reduce the energy loss, practice thrift the cost, the efficiency of recycling of the energy is improved.
Description
Technical Field
The utility model belongs to the technical field of reboiler, in particular to reboiler that has waste heat recovery and utilization structure based on energy-conserving production.
Background
The reboiler (also a weighing boiler) vaporizes the liquid again as the name implies; the structure of the device is similar to that of a condenser, but one of the devices is used for reducing the temperature, and the reboiler is used for raising the temperature and vaporizing; the reboiler is mostly used with a fractionating tower: the reboiler is a special heat exchanger that can exchange heat with a vaporization space. The level of feed in the reboiler and the level of the fractionation column are at the same height. The liquid phase is supplied from the bottom line into the reboiler. Typically 25-30% of the liquid phase is vaporized in the reboiler. The vaporized two-phase stream is fed back to the fractionation column, with the vapor phase component passing upward through the trays and the liquid phase component falling back to the bottom of the column; the material is heated and expanded in the reboiler and even vaporized, the density is reduced, so that the material leaves the vaporization space and smoothly returns to the tower, the gas phase and the liquid phase in the tower return to the tower, the gas phase upwards passes through the tower tray, and the liquid phase falls to the bottom of the tower. The bottom of the column will be constantly replenished with the part of the liquid level that is evaporated due to the static pressure difference.
At present, a reboiler is divided into a horizontal reboiler and a vertical reboiler, wherein the vertical reboiler is used for introducing a raw material and steam into the vertical reboiler, the raw material is heated and gasified by the steam, the unvaporized part falls down, the vaporized part is discharged and utilized or collected by a steam pipe, and the temperature of the raw material entering the reboiler has a large influence on the vaporization efficiency, so that more heat loss is easily caused, the raw material cannot be reused, and the production cost is increased.
Therefore, it is necessary to solve the above problems by inventing a reboiler having a waste heat recovery structure for energy saving production.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a reboiler that has waste heat recovery and utilization structure based on energy-conserving production to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the reboiler with the waste heat recycling structure based on energy-saving production comprises a reboiler shell, wherein the top and the bottom of the reboiler shell are respectively provided with a steam outlet pipe and a bottom liquid outlet pipe, one side of the reboiler shell is provided with a raw material inlet pipe close to the bottom, and the other side of the reboiler shell is provided with a reflux liquid inlet pipe and a steam inlet pipe close to the top and the bottom;
all be provided with heat transfer device between feedstock inlet pipe and the backward flow liquid import pipe both ends, be connected with first heat exchange tube and second heat exchange tube between heat transfer device top and the steam outlet pipe respectively, one side of first heat exchange tube and second heat exchange tube respectively and be connected with first steam branch pipe and second steam branch pipe between the heat transfer device, all be provided with the control valve between steam outlet pipe, first heat exchange tube, second heat exchange tube, first steam branch pipe and the second steam branch pipe both ends, first heat exchange tube and second pipe heat pipe are located the top and the bottom setting of control valve on the steam outlet pipe respectively.
Furthermore, heat transfer device includes the heat transfer casing, the inside heat transfer coil that is provided with of heat transfer casing, heat transfer coil coils respectively around its raw materials import pipe and the surface of backward flow import pipe that corresponds, and heat transfer coil's both ends are connected with first heat exchange tube and second heat exchange tube respectively.
Furthermore, the first steam branch pipe and the second steam branch pipe are communicated with the inside of the heat exchange shell, and the control valve is a one-way valve.
Further, the heat exchange shell is provided with a pressure relief device for discharging residue at the bottom, the pressure relief device for discharging residue comprises a pressure relief cylinder and a residue discharge cylinder, the top of the residue discharge cylinder is communicated with the inside of the heat exchange shell, and the bottom of the residue discharge cylinder is communicated with the inside of the pressure relief cylinder.
Further, put incomplete section of thick bamboo and the communicating one end internal diameter of heat transfer casing and be less than and put incomplete bobbin base wall internal diameter, put interior roof swing joint of incomplete section of thick bamboo and have first piston, first piston bottom both sides activity through connection has first T shape pole, first T shape pole top with put incomplete interior roof fixed connection of section of thick bamboo, a section surface in bottom has cup jointed first spring, and puts incomplete bobbin base portion one side through connection and put incomplete pipe, it is provided with between the incomplete pipe both ends and puts the incomplete valve.
Furthermore, put incomplete pipe top through connection and have an L venturi tube, L venturi tube one end extends to inside the heat transfer casing, and the tilt up setting is linked together with many circles of heat transfer coil pipe bottom.
Furthermore, the inside sliding connection of a pressure release section of thick bamboo has the second piston, second piston bottom fixedly connected with second T shape pole, the activity of second T shape pole bottom one end runs through a pressure release section of thick bamboo and extends to the outside, and second T shape pole is located one section surface of a pressure release section of thick bamboo inside and has cup jointed the second spring, pressure release section of thick bamboo both sides are located second piston bottom and have all seted up the pressure release hole.
Furthermore, the surfaces of the steam outlet pipe, the steam inlet pipe, the first heat exchange pipe, the second heat exchange pipe, the first steam branch pipe, the second steam branch pipe and the residue discharge pipe are wrapped with heat insulation cotton materials.
The utility model discloses a technological effect and advantage:
1. the utility model discloses a be equipped with heat transfer device, carry out the heat transfer through heat transfer coil to material inlet pipe and reflux import pipe, and at the in-process of heat transfer, through first steam branch pipe and second steam branch pipe, with partial steam emission to heat transfer device inside, further heat raw materials and reflux, thereby make raw materials and reflux rise at the initial temperature that gets into reboiler when inside, thereby be convenient for fast gasification, reduce the energy loss, practice thrift the cost, the efficiency of recycling of the energy is improved.
2. The utility model discloses a put incomplete pressure relief device, through the liquid discharge to condensation and liquefaction, prevent that liquid from having always to exist inside the heat transfer casing, still will cause unnecessary heat loss to liquid heating wherein at the in-process of heat transfer to the utilization efficiency of the increase energy improves the heat transfer effect, and prevents that the pipeline from blockking up, leads to steam pressure great, produces the explosion.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the description below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 shows a schematic overall structure diagram of an embodiment of the present invention;
fig. 2 shows a main sectional view of the overall structure of an embodiment of the present invention;
FIG. 3 shows an enlarged view of the portion A of FIG. 2 according to an embodiment of the present invention;
in the figure: 1. a reboiler housing; 2. a steam outlet pipe; 3. a base liquid outlet pipe; 4. a raw material inlet pipe; 5. a reflux liquid inlet pipe; 6. a steam inlet pipe; 7. a first heat exchange tube; 8. a second heat exchange tube; 9. a first steam branch pipe; 10. a second steam branch pipe; 11. a control valve; 12. a heat exchange housing; 13. a heat exchange coil; 14. a residue discharge cylinder; 15. a pressure relief cylinder; 16. a first piston; 17. a first T-bar; 18. a first spring; 19. a residue discharge pipe; 20. an L-shaped tube; 21. a second piston; 22. a second T-bar; 23. a second spring; 24. a pressure relief vent.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a reboiler with a waste heat recovery structure based on energy-saving production, as shown in figures 1-3, comprising a reboiler shell 1, wherein the top and the bottom of the reboiler shell 1 are respectively provided with a steam outlet pipe 2 and a bottom liquid outlet pipe 3, one side of the reboiler shell 1 is provided with a raw material inlet pipe 4 near the bottom, and the other side is provided with a reflux liquid inlet pipe 5 and a steam inlet pipe 6 near the top and the bottom respectively;
the heat exchange device is arranged between the two ends of the raw material inlet pipe 4 and the reflux liquid inlet pipe 5, a first heat exchange pipe 7 and a second heat exchange pipe 8 are respectively connected between the top of the heat exchange device and the steam outlet pipe 2, a first steam branch pipe 9 and a second steam branch pipe 10 are respectively connected between one side of the first heat exchange pipe 7 and one side of the second heat exchange pipe 8 and the heat exchange device, control valves 11 are respectively arranged between the two ends of the steam outlet pipe 2, the first heat exchange pipe 7, the second heat exchange pipe 8, the first steam branch pipe 9 and the second steam branch pipe 10, and the first heat exchange pipe 7 and the second heat exchange pipe are respectively arranged at the top and the bottom of the control valve 11 on the steam outlet pipe 2; the heat exchange device comprises a heat exchange shell 12, a heat exchange coil 13 is arranged in the heat exchange shell 12, the heat exchange coil 13 is respectively wound on the surfaces of a raw material inlet pipe 4 and a reflux liquid inlet pipe 5 which correspond to the heat exchange coil 13, and two ends of the heat exchange coil 13 are respectively connected with a first heat exchange pipe 7 and a second heat exchange pipe 8; the first steam branch pipe 9 and the second steam branch pipe 10 are communicated with the inside of a heat exchange shell 12, and the control valve 11 is a one-way valve;
when the reboiler is used, raw materials are fed into the interior of a reboiler shell 1 through a raw material port pipe, steam is fed into the interior of the reboiler shell 1 through a steam inlet pipe 6, refluxed liquid is fed into a refluxed liquid inlet pipe 5, the raw materials and the refluxed liquid are heated and vaporized through the steam, unvaporized liquid is discharged or discharged to the position of the refluxed liquid inlet pipe 5 through a bottom liquid outlet pipe 3, when the raw materials and the refluxed liquid enter the reboiler shell 1, the raw materials and the refluxed liquid are heated through a heat exchange device on the surface of the reboiler shell, the heating process is that the steam part passing through a steam outlet pipe 2 enters a first heat exchange pipe 7, a heat source is provided through the first heat exchange pipe 7 and the heat exchange device, the steam enters the interior of a heat exchange coil 13 to exchange heat the raw material inlet pipe 4 and the refluxed liquid inlet pipe 5, and the steam after heat exchange returns to the interior of the steam outlet pipe 2 through a second heat exchange pipe 8 to be discharged or collected, and at the in-process of heat transfer, through first steam branch pipe 9 and second steam branch pipe 10, with inside partial steam emission to heat transfer device, further heat raw materials and reflux to make raw materials and reflux rise at the initial temperature that gets into reboiler when inside, thereby be convenient for gasify fast, reduce the energy loss, the cost is saved improves the efficiency of recycling of the energy.
As shown in fig. 2-3, a residue discharge and pressure relief device is arranged at the bottom of the heat exchange housing 12, the residue discharge and pressure relief device comprises a residue discharge cylinder 14 and a pressure relief cylinder 15, the top of the residue discharge cylinder 14 is communicated with the inside of the heat exchange housing 12, and the bottom of the residue discharge cylinder is communicated with the inside of the pressure relief cylinder 15; the inner diameter of one end of the residue discharge cylinder 14 communicated with the heat exchange shell 12 is smaller than the inner diameter of the bottom wall of the residue discharge cylinder 14, the top wall of the residue discharge cylinder 14 is movably connected with a first piston 16, two sides of the bottom of the first piston 16 are movably connected with a first T-shaped rod 17 in a penetrating manner, the top of the first T-shaped rod 17 is fixedly connected with the top wall of the residue discharge cylinder 14, a first spring 18 is sleeved on one section of the surface of the bottom, a residue discharge pipe 19 is connected to one side of the bottom of the residue discharge cylinder 14 in a penetrating manner, and a residue discharge valve is arranged between two ends of the residue discharge pipe 19; the top of the residue discharge pipe 19 is connected with an L-shaped pipe 20 in a through manner, one end of the L-shaped pipe 20 extends into the heat exchange shell 12, is arranged in an upward inclined manner, and is communicated with the bottom of the multi-circle heat exchange coil 13;
when the heat exchange device is used, when the liquid condensed during heat exchange through the heat exchange coil 13 and the liquid liquefied by the steam in the first steam branch pipe 9 enter the heat exchange shell 12, the liquid needs to be discharged, the control valve 11 of the first heat exchange pipe 7 and the first steam branch pipe 9 is closed, the residue discharge valve is opened, the condensed and liquefied liquid is discharged, and when the internal liquid is increased or the pressure is increased, the first piston 16 is pushed open, the liquid enters the residue discharge cylinder 14 to be stored, the liquid is prevented from being always stored in the heat exchange shell 12, the liquid in the heat exchange process is heated, unnecessary heat loss is caused, the utilization efficiency of energy is increased, and the heat exchange effect is improved.
As shown in fig. 3, a second piston 21 is slidably connected inside the pressure relief cylinder 15, a second T-shaped rod 22 is fixedly connected to the bottom of the second piston 21, one end of the bottom of the second T-shaped rod 22 movably penetrates through the pressure relief cylinder 15 and extends to the outside, a second spring 23 is sleeved on a section of surface of the second T-shaped rod 22 located inside the pressure relief cylinder 15, and pressure relief holes 24 are formed in two sides of the pressure relief cylinder 15 located at the bottom of the second piston 21; wherein the elastic coefficient of the first spring 18 is smaller than that of the second spring 23, and the surfaces of the steam outlet pipe 2, the steam inlet pipe 6, the first heat exchange pipe 7, the second heat exchange pipe 8, the first steam branch pipe 9, the second steam branch pipe 10 and the residue discharge pipe 19 are all wrapped with heat insulation cotton materials;
when the steam pressure inside the heat exchange shell 12 is large, the first piston 16 and the second piston 21 are pushed open, so that the second piston 21 moves to the bottom position of the pressure relief hole 24, and the gas is discharged through the pressure relief hole 24, thereby preventing the pipeline from being blocked, causing the large steam pressure and generating explosion.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (8)
1. Reboiler that has waste heat recovery and utilization structure based on energy-conserving production, including reboiler casing (1), its characterized in that: the top and the bottom of the reboiler shell (1) are respectively provided with a steam outlet pipe (2) and a bottom liquid outlet pipe (3), one side of the reboiler shell (1) close to the bottom is provided with a raw material inlet pipe (4), and the other side of the reboiler shell close to the top and the bottom is respectively provided with a reflux liquid inlet pipe (5) and a steam inlet pipe (6);
all be provided with heat transfer device between feedstock inlet pipe (4) and backward flow liquid import pipe (5) both ends, be connected with first heat exchange tube (7) and second heat exchange tube (8) between heat transfer device top and steam outlet pipe (2) respectively, one side of first heat exchange tube (7) and second heat exchange tube (8) respectively with be connected with between the heat transfer device first steam branch pipe (9) and second steam branch pipe (10), all be provided with control valve (11) between steam outlet pipe (2), first heat exchange tube (7), second heat exchange tube (8), first steam branch pipe (9) and second steam branch pipe (10) both ends, first heat exchange tube (7) and second heat exchange tube are located the top and the bottom setting of control valve (11) on steam outlet pipe (2) respectively.
2. The reboiler with a waste heat recovery structure based on energy saving production according to claim 1, characterized in that: the heat exchange device comprises a heat exchange shell (12), wherein a heat exchange coil (13) is arranged inside the heat exchange shell (12), the heat exchange coil (13) is wound on the surfaces of a raw material inlet pipe (4) and a reflux liquid inlet pipe (5) which correspond to the heat exchange coil respectively, and the two ends of the heat exchange coil (13) are connected with a first heat exchange pipe (7) and a second heat exchange pipe (8) respectively.
3. The reboiler with a waste heat recovery structure based on energy saving production according to claim 1, characterized in that: the first steam branch pipe (9) and the second steam branch pipe (10) are communicated with the inside of the heat exchange shell (12), and the control valve (11) is a one-way valve.
4. The reboiler with a waste heat recovery structure based on energy saving production according to claim 2, characterized in that: the heat exchange shell (12) bottom is provided with the pressure relief device of putting incomplete, put incomplete pressure relief device including putting incomplete a section of thick bamboo (14) and pressure relief section of thick bamboo (15), put incomplete a section of thick bamboo (14) top and heat exchange shell (12) inside and communicate with each other, the bottom communicates with each other with pressure relief section of thick bamboo (15) inside.
5. The reboiler with a waste heat recovery structure based on energy saving production according to claim 4, characterized in that: put incomplete a section of thick bamboo (14) and heat transfer casing (12) communicating one end internal diameter and be less than put incomplete a section of thick bamboo (14) diapire internal diameter, put incomplete a section of thick bamboo (14) interior roof swing joint have first piston (16), first piston (16) bottom both sides activity through connection has first T shape pole (17), first T shape pole (17) top with put incomplete a section of thick bamboo (14) interior roof fixed connection, one section surface in bottom has cup jointed first spring (18), and put incomplete a section of thick bamboo (14) bottom one side through connection and have put incomplete pipe (19), it is provided with between incomplete pipe (19) both ends to put to be provided with puts the residual valve.
6. The reboiler with a waste heat recovery structure based on energy saving production according to claim 5, characterized in that: the top of the residue discharge pipe (19) is connected with an L-shaped pipe (20) in a through mode, one end of the L-shaped pipe (20) extends to the inside of the heat exchange shell (12), is arranged in an upward inclined mode and is communicated with the bottoms of the multiple circles of heat exchange coil pipes (13).
7. The reboiler with a waste heat recovery structure based on energy saving production according to claim 4, characterized in that: the inside sliding connection of a pressure release section of thick bamboo (15) has second piston (21), second piston (21) bottom fixedly connected with second T shape pole (22), second T shape pole (22) bottom one end activity runs through a pressure release section of thick bamboo (15) and extends to the outside, and second T shape pole (22) are located one section surface of a pressure release section of thick bamboo (15) inside and have cup jointed second spring (23), pressure release section of thick bamboo (15) both sides are located second piston (21) bottom and have all seted up pressure release hole (24).
8. The reboiler with a waste heat recovery structure based on energy saving production according to claim 5, characterized in that: the surfaces of the steam outlet pipe (2), the steam inlet pipe (6), the first heat exchange pipe (7), the second heat exchange pipe (8), the first steam branch pipe (9), the second steam branch pipe (10) and the residue discharge pipe (19) are all wrapped with heat preservation cotton materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123265351.XU CN216725789U (en) | 2021-12-23 | 2021-12-23 | Reboiler with waste heat recovery utilizes structure based on energy-conserving production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123265351.XU CN216725789U (en) | 2021-12-23 | 2021-12-23 | Reboiler with waste heat recovery utilizes structure based on energy-conserving production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216725789U true CN216725789U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123265351.XU Active CN216725789U (en) | 2021-12-23 | 2021-12-23 | Reboiler with waste heat recovery utilizes structure based on energy-conserving production |
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| Country | Link |
|---|---|
| CN (1) | CN216725789U (en) |
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2021
- 2021-12-23 CN CN202123265351.XU patent/CN216725789U/en active Active
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Address after: 261061 middle section of Fushou East Street, high tech Industrial Development Zone, Weifang City, Shandong Province Patentee after: Hongrun Petrochemical (Weifang) Co.,Ltd. Address before: 261000 middle section of Fushou East Street, high tech Industrial Development Zone, Weifang City, Shandong Province Patentee before: SINOCHEM HONGRUN PETROCHEMICAL CO.,LTD. |