CN218686401U - Preheating device - Google Patents
Preheating device Download PDFInfo
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- CN218686401U CN218686401U CN202222751639.6U CN202222751639U CN218686401U CN 218686401 U CN218686401 U CN 218686401U CN 202222751639 U CN202222751639 U CN 202222751639U CN 218686401 U CN218686401 U CN 218686401U
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- heat exchanger
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- waste oil
- tower
- distillation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a preheating device, including the dehydration tower: the tower body of dehydration tower passes through the inlet pipe and is connected with distillation heat exchanger, the top of the tower of dehydration tower is passed through the gaseous eduction tube and is connected with condensation heat exchanger, condensation heat exchanger passes through the condenser pipe and is connected with oil water separator, condensation heat exchanger advances the pipe through the cold fluid and is connected with distillation heat exchanger, condensation heat exchanger passes through the waste oil induction pipe and is connected with the waste oil storehouse, be provided with the hot fluid circulation spare of being connected with gaseous eduction tube and waste oil storehouse respectively on the distillation heat exchanger. The utility model discloses in, this preheating device is through the hot-fluid circulation piece that sets up, can be with the heat conduction in the hot-fluid that the distillation heat exchanger derives in the waste oil storehouse, play the effect of preheating to the waste oil in the waste oil storehouse to ensure that the waste oil in the waste oil storehouse can remain throughout at the waste heat temperature of relative invariant, when improving heat utilization, also ensure the thermal dynamic balance state of hot-fluid in the feed arrangement.
Description
Technical Field
The utility model relates to a waste oil treatment technical field especially relates to a preheating device.
Background
The dehydration tower is a tower type vapor-liquid contact device for distilling and dehydrating liquid materials, also called as a distillation tower, and the basic principle is that the components in the liquid materials can generate performance difference, the components are partially vaporized by taking heat energy as a medium, so that volatile components are enriched in a gas phase, and nonvolatile components are enriched in a liquid phase, so that the materials are separated, the dehydration tower is commonly used for dehydration treatment in the waste mineral oil recovery processing process, impurities and partial moisture in the waste mineral oil are mainly removed through pretreatment, then the waste mineral oil enters a bottom tank of the dehydration tower for distillation and dehydration after heat exchange is carried out to about 100 ℃ through a heat exchanger, the removed moisture and light components are condensed and then enter an oil-water separator for separation, and the whole dehydration process is completed.
Chinese patent publication No.: CN216963586U discloses a feed arrangement for dehydration column, include distillation heat exchanger and the condensation heat exchanger of being connected with the dehydration column body, the distillation heat exchanger is located body one side, the condensation heat exchanger is located the body top, wherein the cold fluid export of distillation heat exchanger is connected with the feed inlet that the body lateral wall set up, the cold fluid import of distillation heat exchanger and the cold fluid exit linkage of condensation heat exchanger, the cold fluid import of condensation heat exchanger is used for the entering of waste mineral oil, the hot-fluid import of distillation heat exchanger and the gaseous phase exit linkage that the body top set up, the hot-fluid export of distillation heat exchanger is connected with the oil water separator who is located the body top.
Foretell dehydration tower feed arrangement adopts distillation heat exchanger and condensation heat exchanger's combined action, realizes the thermal high-efficient utilization of thermal fluid, can play the effect of preheating to waste oil is dirty, but when the hot-fluid preheats waste oil, the waste heat conduction of hot-fluid is single channel structure, when waste oil dirt was preheated to the set temperature, the heat in the thermal fluid can't be timely cut off or the switching-over for heat in the thermal fluid can outwards constantly scatter and disappear, lead to thermal unnecessary loss.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt the binary channels heat conduction channel of hot-fluid circulation piece, ensure that waste oil is preheated to the constant temperature, avoid the innocent waste of heat, improve heat utilization's a preheating device.
In order to achieve the above object, the present invention provides the following technical solutions: a preheating apparatus comprising a dehydration tower:
the tower body of the dehydration tower is connected with the distillation heat exchanger through a feed pipe, and the tower top of the dehydration tower is connected with the condensation heat exchanger through a gas phase delivery pipe;
the condensation heat exchanger is connected with the oil-water separator through a condensation pipe and is connected with the distillation heat exchanger through a cold fluid inlet pipe;
the condensation heat exchanger is connected with the waste oil bin through a waste oil inlet pipe;
and the distillation heat exchanger is provided with a hot fluid circulating piece which is respectively connected with the gas phase delivery pipe and the waste oil bin.
As a further description of the above technical solution:
the hot fluid circulating part comprises a hot fluid circulating pipe connected between the distillation heat exchanger and the waste oil bin, a three-way valve is arranged on the hot fluid circulating pipe, and a hot fluid return pipe connected with the gas phase delivery pipe is arranged on the three-way valve.
As a further description of the above technical solution:
and a hot fluid circulating pump is arranged on one side of the hot fluid circulating pipe close to the distillation heat exchanger.
As a further description of the above technical solution:
and a circulating pipe is arranged between the tower bottom of the dehydrating tower and the distillation heat exchanger, and an oil stain circulating pump is arranged on the circulating pipe and on one side close to the dehydrating tower.
As a further description of the above technical solution:
and a cold fluid pump is arranged on one side of the cold fluid inlet pipe, which is close to the condensing heat exchanger.
As a further description of the above technical solution:
and a hot fluid inlet pipe is arranged between the tower top of the dehydration tower and the distillation heat exchanger.
As a further description of the above technical solution:
and one side of the hot fluid return pipe, which is close to the gas phase delivery pipe, is provided with a one-way valve.
In the technical scheme, the utility model provides a pair of preheating device has following beneficial effect:
this preheating device is through the hot-fluid circulation piece that sets up, can be with the heat conduction in the hot-fluid that the distillation heat exchanger derives in the waste oil storehouse, play the effect of preheating to the waste oil in the waste oil storehouse, improve the temperature that waste oil got into the condensation heat exchanger, and when waste oil reaches the uniform temperature in the waste oil storehouse, in leading-in gaseous phase derivation pipe in time with the hot-fluid, ensure that the waste oil in the waste oil storehouse can remain the waste heat temperature at invariable relatively all the time, when improving heat utilization rate, also ensure the thermal dynamic balance state of hot-fluid in the feed arrangement.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic structural diagram of a preheating device according to an embodiment of the present invention.
Description of reference numerals:
1. a dehydration tower; 2. a distillation heat exchanger; 3. a condensing heat exchanger; 4. a gas phase delivery pipe; 5. a condenser tube; 6. an oil-water separator; 7. an oil contamination circulating pump; 8. a circulation pipe; 9. a feed pipe; 10. a hot fluid inlet pipe; 11. a cold fluid inlet pipe; 12. a thermal fluid circulating pump; 13. a thermal fluid circulation pipe; 14. a three-way valve; 15. a hot fluid return pipe; 16. a one-way valve; 17. a waste oil bin; 18. a waste oil inlet pipe; 19. a cold fluid pump.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, a preheating apparatus includes a dehydration tower 1:
the tower body of the dehydrating tower 1 is connected with the distillation heat exchanger 2 through a feeding pipe 9, the tower top of the dehydrating tower 1 is connected with the gas phase inlet of the condensation heat exchanger 3 through a gas phase delivery pipe 4, so that the waste oil mixture distilled by the distillation heat exchanger 2 is introduced into the dehydrating tower 1, and the gas phase liquid dehydrated in the dehydrating tower 1 is introduced into the condensation heat exchanger 3 through the gas phase delivery pipe 4 to exchange heat with cold fluid;
a hot fluid inlet pipe 10 is arranged between the top of the dehydrating tower 1 and the distillation heat exchanger 2, so that a gas-phase mixture dehydrated by the dehydrating tower 1 can enter the distillation heat exchanger 2, and the efficient utilization effect of the gas-phase mixed liquid is realized;
the condensation outlet of the condensation heat exchanger 3 is connected with the inlet end of the oil-water separator 6 through the condensation pipe 5, condensed water can be introduced into the oil-water separator 6, the condensation effect on an oil-water mixture in the oil-water separator 6 is achieved, the oil-water separation efficiency is improved, and the cold fluid outlet of the condensation heat exchanger 3 is connected with the cold fluid inlet of the distillation heat exchanger 2 through the cold fluid inlet pipe 11;
a waste oil inlet of the condensing heat exchanger 3 is connected with a waste oil outlet of a waste oil bin 17 through a waste oil inlet pipe 18, so that the waste oil can be smoothly introduced;
be provided with the hot fluid circulation piece of being connected with gaseous phase contact tube 4 and waste oil storehouse 17 respectively on distilling heat exchanger 2, can pass through the conduction of hot fluid circulation piece in the hot fluid that distilling heat exchanger 2 derives in waste oil storehouse 17, play the effect of preheating to the waste oil in the waste oil storehouse 17, improve the temperature that the waste oil got into condensing heat exchanger 3, and when waste oil reaches the uniform temperature in waste oil storehouse 17, in the timely leading-in gaseous phase contact tube 4 of hot fluid, ensure that the waste oil in the waste oil storehouse 17 can remain the waste heat temperature at invariable relatively all the time, when improving heat utilization, also ensure the thermal dynamic balance state of hot fluid in the feed arrangement.
The thermal fluid circulating part comprises a thermal fluid circulating pipe 13 connected between the distillation heat exchanger 2 and the waste oil bin 17, a three-way valve 14 is arranged on the thermal fluid circulating pipe 13, a thermal fluid return pipe 15 connected with the gas phase delivery pipe 4 is arranged on the three-way valve 14, a thermal fluid circulating pump 12 is arranged on one side, close to the distillation heat exchanger 2, of the thermal fluid circulating pipe 13, a one-way valve 16 is arranged on one side, close to the gas phase delivery pipe 4, of the thermal fluid return pipe 15, the thermal fluid in the distillation heat exchanger 2 is pumped into the thermal fluid circulating pipe 13 under the action of the thermal fluid circulating pump 12 and enters the waste oil bin 17, a preheating effect is achieved on low-temperature waste oil in the waste oil bin 17, the temperature of the waste oil in the waste oil bin 17 is raised, when the temperature of the waste oil in the waste oil bin 17 reaches a set temperature value, the conduction state of the three-way valve 14 is switched, the thermal fluid in the thermal fluid circulating pipe 13 is guided into the gas phase delivery pipe 4 again through the thermal fluid return pipe 15, reverse flow is prevented under the action of the thermal fluid one-way valve 16, a reversing effect on thermal fluid delivered by the distillation heat exchanger 2 can be achieved, the thermal fluid is achieved while the heat utilization rate is improved, and the dynamic balance state of the heat of the feeding device is also ensured.
Be provided with circulating pipe 8 between the tower bottom of dehydration tower 1 and distillation heat exchanger 2, and on circulating pipe 8 and be close to one side of dehydration tower 1 and be provided with greasy dirt circulating pump 7 for the waste oil of gathering in dehydration tower 1 bottom after the dehydration can get into in circulating pipe 8 under the effect of greasy dirt circulating pump 7, and after entering into distillation heat exchanger 2 interior heat transfer again, enters into at last and circulates dehydration in the dehydration tower 1.
And a cold fluid pump 19 is arranged on one side of the cold fluid inlet pipe 11 close to the condensing heat exchanger 3, so that the smooth flowing effect of cold fluid between the condensing heat exchanger 3 and the distillation heat exchanger 2 is realized.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (7)
1. A preheating device comprising a dehydration column (1), characterized in that:
the tower body of the dehydration tower (1) is connected with the distillation heat exchanger (2) through a feeding pipe (9), and the tower top of the dehydration tower (1) is connected with the condensation heat exchanger (3) through a gas phase delivery pipe (4);
the condensation heat exchanger (3) is connected with the oil-water separator (6) through a condensation pipe (5), and the condensation heat exchanger (3) is connected with the distillation heat exchanger (2) through a cold fluid inlet pipe (11);
the condensation heat exchanger (3) is connected with a waste oil bin (17) through a waste oil inlet pipe (18);
and the distillation heat exchanger (2) is provided with a hot fluid circulating piece which is respectively connected with the gas phase delivery pipe (4) and the waste oil bin (17).
2. A preheating arrangement according to claim 1, wherein: the hot fluid circulating part comprises a hot fluid circulating pipe (13) connected between the distillation heat exchanger (2) and the waste oil bin (17), a three-way valve (14) is arranged on the hot fluid circulating pipe (13), and a hot fluid returning pipe (15) connected with the gas phase delivery pipe (4) is arranged on the three-way valve (14).
3. A preheating arrangement according to claim 2, wherein: and a hot fluid circulating pump (12) is arranged on one side of the hot fluid circulating pipe (13) close to the distillation heat exchanger (2).
4. A preheating arrangement according to claim 1, wherein: a circulating pipe (8) is arranged between the bottom of the dehydrating tower (1) and the distillation heat exchanger (2), and an oil stain circulating pump (7) is arranged on the circulating pipe (8) and on one side close to the dehydrating tower (1).
5. A preheating arrangement according to claim 1, wherein: and a cold fluid pump (19) is arranged on one side of the cold fluid inlet pipe (11) close to the condensing heat exchanger (3).
6. A preheating arrangement according to claim 1, wherein: a hot fluid inlet pipe (10) is arranged between the top of the dehydrating tower (1) and the distillation heat exchanger (2).
7. A preheating arrangement according to claim 2, wherein: and a one-way valve (16) is arranged on one side of the hot fluid return pipe (15) close to the gas phase delivery pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222751639.6U CN218686401U (en) | 2022-10-19 | 2022-10-19 | Preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222751639.6U CN218686401U (en) | 2022-10-19 | 2022-10-19 | Preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218686401U true CN218686401U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222751639.6U Active CN218686401U (en) | 2022-10-19 | 2022-10-19 | Preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218686401U (en) |
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2022
- 2022-10-19 CN CN202222751639.6U patent/CN218686401U/en active Active
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