CN209820222U - Waste lubricating oil regeneration pressure-reduction heat exchange device - Google Patents
Waste lubricating oil regeneration pressure-reduction heat exchange device Download PDFInfo
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- CN209820222U CN209820222U CN201920232509.7U CN201920232509U CN209820222U CN 209820222 U CN209820222 U CN 209820222U CN 201920232509 U CN201920232509 U CN 201920232509U CN 209820222 U CN209820222 U CN 209820222U
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Abstract
The utility model relates to a waste lubricating oil regeneration decompression heat exchange device, the waste lubricating oil regeneration decompression heat exchange device comprises a heat exchanger main body, the heat exchanger main body comprises a shell, the inner front end of the shell is provided with a fixed tube plate, the inner rear end is provided with a floating tube plate, a heat exchange tube bundle is arranged between the fixed tube plate and the floating tube plate, the bottom of the shell is provided with a rear tube box, the inner part of the rear tube box is provided with a floating head, the front end of the floating head is connected with the floating tube plate, the bottom center of the floating head is connected with the front end of a short section, the rear end of the short section is connected with the front end of an expansion joint, the rear end of the expansion joint is connected with a long; a plurality of positioning components are arranged between the floating head and the rear pipe box; the utility model discloses at first one end design locating component that floats, can guarantee the higher axiality of unsteady tube sheet to radially carrying on spacingly to the floating end of tube side, avoid the tube side to receive the influence of gravity and can incline.
Description
Technical Field
The utility model belongs to the technical field of the lubricating oil is retrieved, concretely relates to useless lubricating oil regeneration decompression heat transfer device.
Background
After the lubricating oil is used for a period of time, the normal function of the lubricating oil is lost due to the introduction of impurities, the deterioration of additives and the like, and the lubricating oil becomes waste lubricating oil. In present production technology, can obtain regeneration base oil through steps such as flocculation, heat transfer, vacuum distillation, flash distillation, rectification and absorption in the useless lubricating oil, an important equipment that wherein need use is heat transfer device before the vacuum distillation, because lubricating oil viscosity is great and the difference in temperature is great in heat transfer process, consequently adopts floating head heat exchanger as heat transfer device more, floating head heat exchanger, only one end is fixed with the casing in the both ends tube sheet, but the other end casing free movement relatively is called floating head. The floating head consists of a floating tube plate, a hook ring and a floating head end cover, and is detachably connected, and the tube bundle can be drawn out from the shell. The thermal deformation of the tube bundle and the shell is not restrained, so that the thermal stress cannot be generated. Its advantages are easy cleaning between tubes and in tubes, and no generation of thermal stress.
The prior art heat exchangers suffer from the disadvantage that the tube side is subject to gravitational forces which tend to tilt and cause contact between the floating tube sheet and the shell, resulting in friction and radial stresses on the inner tubes.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a avoid the tube side to receive the useless lubricating oil regeneration decompression heat transfer device that gravity influence can incline for solving above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a waste lubricating oil regeneration decompression heat exchange device comprises a heat exchanger main body, wherein the heat exchanger main body comprises a shell, a fixed tube plate is arranged at the front end inside the shell, a floating tube plate is arranged at the rear end inside the shell, a heat exchange tube bundle is arranged between the fixed tube plate and the floating tube plate, a rear tube box is arranged at the bottom of the shell, a floating head is arranged inside the rear tube box, the front end of the floating head is connected with the floating tube plate, the center of the bottom of the floating head is connected with the front end of a short section, the rear end of the short section is connected with the front end of an expansion joint, the rear end of the expansion joint is connected with a long section, the rear end of the long section extends to the bottom of the rear tube box and;
a plurality of positioning components are arranged between the floating head and the rear tube box, each positioning component comprises a positioning rod and a positioning sleeve, the front end of each positioning rod is fixedly connected with the floating head, the rear end of each positioning sleeve is fixedly connected with the rear tube box, through holes matched with the positioning rods are arranged in the positioning sleeves, and the positioning rods are inserted into the positioning sleeves.
As a further optimization scheme of the utility model, be equipped with the clearance between the rear end of locating lever and the back pipe case.
As the utility model discloses a further optimization scheme, the casing is connected gradually by preceding pipe case, barrel and back pipe case and is constituted, is equipped with the lubricating oil export on the preceding pipe case, is equipped with fused salt import and fused salt export on the barrel.
As a further optimization scheme of the utility model, the packing box subassembly includes the stuffing box, the bottom center of back tube case be equipped with stuffing box complex through-hole, the stuffing box locate in this through-hole and with the welding of back tube case, the front end of stuffing box be equipped with long festival complex through-hole, the inside cylindrical cavity that is equipped with of stuffing box, the stuffing box rear end opening, and insert the gland packing, pack the filler between the cylindrical cavity between gland packing and the stuffing box, the rear end of gland packing and the rear end of stuffing box are equipped with the filler flange of mutually supporting, pass through bolted connection between these two filler flanges.
As a further optimization scheme of the utility model, communicate through outer pipeline between back pipe case and the preceding pipe case.
As the utility model discloses a further optimization scheme, set up two sets of nipple joints, expansion joint and long section between floating head and the back pipe case.
The beneficial effects of the utility model reside in that:
1) the utility model designs the positioning component at one end of the floating head, which can ensure higher coaxiality of the floating tube plate, thereby limiting the floating end of the tube pass in the radial direction, realizing the positioning of two ends by matching with the limit of the fixed tube plate end, avoiding the tube pass from being inclined (especially a transverse heat exchanger) under the influence of gravity, and not influencing the movement of the movable tube plate;
2) the utility model designs the channel formed by the connection of the short section, the expansion joint and the long section to complete the communication between the pipe side and the oil inlet pipe, and the expansion of the expansion joint can offset the displacement to avoid generating too large stress on the long section and the short section;
3) the utility model relates to a packing box subassembly carries out the sealed of long festival, improves the leakproofness, avoids revealing.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention in the first embodiment;
fig. 2 is a schematic view of an internal structure of the back channel box according to the first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a stuffing box assembly according to the first embodiment of the present invention;
fig. 4 is a schematic view of the overall structure of the present invention in the second embodiment;
fig. 5 is a schematic view of an internal structure of the back-up header according to the third embodiment of the present invention.
In the figure: 1. the device comprises a shell 2, a fixed tube plate 3, a floating tube plate 4, a heat exchange tube bundle 5, a front tube box 6, a rear tube box 7, a floating head 8, a short section 9, an expansion joint 10, a long section 11, a stuffing box assembly 12, a positioning rod 13, a positioning sleeve 14, a barrel 21, an outer pipeline 1101, a stuffing box 1102 and a stuffing cover.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.
Example one
As shown in fig. 1-3, a waste lubricating oil regeneration pressure-reducing heat exchange device comprises a heat exchanger main body, the heat exchanger main body comprises a shell 1, a fixed tube plate 2 is arranged at the front end inside the shell 1, a floating tube plate 3 is arranged at the rear end inside the shell 1, a heat exchange tube bundle 4 is arranged between the fixed tube plate 2 and the floating tube plate 3, a rear tube box 6 is arranged at the bottom of the shell 1, a floating head 7 is arranged inside the rear tube box 6, the front end of the floating head 7 is connected with the floating tube plate 3, the center of the bottom of the floating head 7 is connected with the front end of a short section 8, the rear end of the short section 8 is connected with the front end of an expansion joint 9, the rear end of the expansion joint 9 is connected with a long section 10, the rear end of the long section 10 extends to the bottom of the rear tube box 6. The pipe pass is communicated with the oil inlet pipe through a channel formed by connecting the short section 8, the expansion joint 9 and the long section 10, expansion and contraction are generated during cold and heat exchange of the pipe pass and the shell pass, so that the floating head 7 moves relative to the rear pipe box 6, and the expansion and contraction of the expansion joint 9 can offset the displacement to avoid generating large stress on the long section 10 and the short section 8;
a plurality of positioning components are arranged between the floating head 7 and the rear tube box 6, each positioning component comprises a positioning rod 12 and a positioning sleeve 13, the front end of the positioning rod 12 is fixedly connected with the floating head 7, the rear end of the positioning sleeve 13 is fixedly connected with the rear tube box 6, a through hole matched with the positioning rod 12 is arranged in the positioning sleeve 13, and the positioning rod 12 is inserted into the positioning sleeve 13. The positioning components can realize multi-point positioning to the floating head 7 through the matching between the positioning rods 12 and the positioning sleeves 13, so that the floating head 7 and the movable tube plate can keep higher coaxiality with the shell 1, and because in order to keep the freedom degree of the movable tube plate, a gap is necessarily arranged between the movable tube plate and the shell 1 (when the movable tube plate is connected with the floating head 7 through the hook ring, the gap is arranged between the hook ring and the shell 1), when the movable tube plate is not arranged, the movable tube plate is inclined to be contacted with the shell 1 due to the gravity action, generates friction when moving, generates radial force to the short section 8, the expansion joint 9 and the long section 10, the friction between the movable tube plate and the shell 1 caused by the inclination of gravity can be avoided as much as possible by the arrangement of the positioning assembly, the radial force generated on the short joint 8, the expansion joint 9 and the long joint 10 can be reduced as much as possible; a gap is necessarily provided between the rear end of the positioning rod 12 and the rear pipe box 6 to ensure a sufficient stroke and avoid hindering the movement of the floating head 7.
The shell 1 is formed by sequentially connecting a front pipe box 5, a cylinder 14 and a rear pipe box 6, wherein the front pipe box 5 is provided with a lubricating oil outlet, and the cylinder 14 is provided with a molten salt inlet and a molten salt outlet (molten salt is used as a medium).
The stuffing box assembly 11 comprises a stuffing box 1101, a through hole matched with the stuffing box 1101 is formed in the center of the bottom of a rear pipe box 6, the stuffing box 1101 is arranged in the through hole and welded with the rear pipe box 6, a through hole matched with the long section 10 is formed in the front end of the stuffing box 1101, a cylindrical cavity is formed in the stuffing box 1101, the rear end of the stuffing box 1101 is opened and is inserted into a stuffing cover 1102, stuffing is filled between the stuffing cover 1102 and the cylindrical cavity between the stuffing box 1101, mutually matched stuffing flanges are arranged at the rear end of the stuffing cover 1102 and the rear end of the stuffing box 1101, and the two stuffing flanges are connected through bolts; the center of the filler cap 1102 is provided with a through hole that is a clearance fit with the long section 10, if necessary. The stuffing box assembly 11 can ensure the sealing between the long section 10 and the rear pipe box 6, and avoid the leakage of internal materials;
the short section 8 and the long section 10 are both pipe fittings with openings at two ends.
It should be noted that the fixed connection may be welding, a through hole matching with the positioning rod 12 is provided in the positioning sleeve 13, and the matching of the through hole matching with the long section 10 provided at the front end of the stuffing box 1101 may be clearance matching.
Example two
As shown in fig. 4, unlike the first embodiment, the rear header 6 and the front header 5 communicate with each other through an outer pipe 21. Because the rear tube box 6 is communicated with the cylinder 14 only through the gap between the movable tube plate and the shell 1, the mobility is poor, the exchange with a medium in the cylinder 14 is slow, the temperature of the area is low, and the heat exchange efficiency is affected, the front tube box 5 is communicated through the outer pipeline 21, the front tube box and the cylinder are communicated with each other, the mobility of the molten salt in the rear tube box 6 is increased, and the temperature is increased.
The outer pipe 21 is covered with an insulating layer, if necessary.
EXAMPLE III
As shown in fig. 5, unlike the first embodiment, two sets of short joints 8, expansion joints 9 and long joints 10 are provided between the floating head 7 and the rear header 6. One group is used for inputting, and the other group is used for discharging impurities deposited at the bottom of the floating head 7 during operation, so that online cleaning is realized.
The two short sections 8 are connected to the floating head 7 in the same way, and the long section 10 is connected to the rear header 6 in the same way.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (6)
1. The utility model provides a useless lubricating oil regeneration decompression heat transfer device, includes the heat exchanger main part, the heat exchanger main part includes the casing, and the inside front end of casing is equipped with fixed tube sheet, and inside rear end is equipped with unsteady tube sheet, is equipped with heat exchanger tube bank between fixed tube sheet and the unsteady tube sheet, and the bottom of casing is equipped with back tube case, and the inside of this back tube case is equipped with floats the head, floats the front end of head and floats the tube sheet and be connected its characterized in that: the center of the bottom of the floating head is connected with the front end of a short section, the rear end of the short section is connected with the front end of an expansion joint, the rear end of the expansion joint is connected with a long section, the rear end of the long section extends to the bottom of a rear pipe box and is connected with an oil inlet pipe through a flange, and a stuffing box assembly is arranged between the long section and the rear pipe box;
a plurality of positioning components are arranged between the floating head and the rear tube box, each positioning component comprises a positioning rod and a positioning sleeve, the front end of each positioning rod is fixedly connected with the floating head, the rear end of each positioning sleeve is fixedly connected with the rear tube box, through holes matched with the positioning rods are arranged in the positioning sleeves, and the positioning rods are inserted into the positioning sleeves.
2. The waste lubricating oil regeneration pressure-reducing heat exchange device of claim 1, wherein: a gap is arranged between the rear end of the positioning rod and the rear pipe box.
3. The waste lubricating oil regeneration pressure-reducing heat exchange device of claim 1, wherein: the shell is formed by sequentially connecting a front pipe box, a cylinder and a rear pipe box, wherein the front pipe box is provided with a lubricating oil outlet, and the cylinder is provided with a molten salt inlet and a molten salt outlet.
4. The waste lubricating oil regeneration pressure-reducing heat exchange device of claim 1, wherein: the stuffing box subassembly includes the stuffing box, the bottom center of back pipe case is equipped with the through-hole with stuffing box complex, the stuffing box locate in this through-hole and with back pipe case welding, the front end of stuffing box be equipped with long festival complex through-hole, the inside cylindrical cavity that is equipped with of stuffing box, the opening of stuffing box rear end, and insert the gland packing, pack between the cylindrical cavity between gland packing and the stuffing box and pack, the rear end of gland packing and the rear end of stuffing box are equipped with the filler flange of mutually supporting, pass through bolted connection between these two filler flanges.
5. The waste lubricating oil regeneration pressure-reducing heat exchange device of claim 1, wherein: the rear pipe box is communicated with the front pipe box through an outer pipeline.
6. The waste lubricating oil regeneration pressure-reducing heat exchange device of claim 1, wherein: two groups of short sections, expansion joints and long sections are arranged between the floating head and the rear tube box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920232509.7U CN209820222U (en) | 2019-02-19 | 2019-02-19 | Waste lubricating oil regeneration pressure-reduction heat exchange device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920232509.7U CN209820222U (en) | 2019-02-19 | 2019-02-19 | Waste lubricating oil regeneration pressure-reduction heat exchange device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209820222U true CN209820222U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920232509.7U Active CN209820222U (en) | 2019-02-19 | 2019-02-19 | Waste lubricating oil regeneration pressure-reduction heat exchange device |
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| Country | Link |
|---|---|
| CN (1) | CN209820222U (en) |
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2019
- 2019-02-19 CN CN201920232509.7U patent/CN209820222U/en active Active
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