Novel lean and rich oil heat exchange device

Abstract

The utility model discloses a novel lean and rich oil heat exchange device which is characterized in that a first spiral plate and a second spiral plate are matched to form a spiral first medium channel and a spiral second medium channel in a heat exchange body, and the head parts and the tail parts of the first spiral plate and the second spiral plate are connected; the heat exchange efficiency can be improved, the distance between the first partition plate and the second partition plate which are closer to the inner side is reduced, the heat exchange efficiency of the rich oil tail end is further improved, the temperature of rich oil is increased, the heat exchange efficiency of the rich oil tail end is improved, and the service life of the rich oil tail end is prolonged. According to the device, by arranging the detachable end cover, the interior of the medium channel can be directly flushed, and the device is convenient and rapid to use, low in cost and good in practicability and applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchange device technical field, specifically a novel lean rich oil heat exchanger. BACKGROUND

[0002] The principle of the lean rich oil heat exchanger is mainly based on the high-efficiency heat exchange mechanism of the spiral plate heat exchanger. The core is to realize the heat transfer between the lean oil and the rich oil through countercurrent flow and compact structure. The lean oil (high temperature) and the rich oil (low temperature) flow in opposite directions in the two independent channels of the spiral plate heat exchanger. Specifically, the lean oil flows out from the bottom of the benzole stripping tower and enters the outer peripheral area of the inter-tube or spiral channel of the heat exchanger, while the rich oil flows through the central area of the tube or spiral channel. The two fluids transfer heat through the metal plate wall. The temperature of the lean oil gradually decreases, and the rich oil is preheated, thereby providing the energy basis for the subsequent distillation process. The rich oil is heated through the spiral plate heat exchanger and the high-temperature lean oil, and then enters the tubular furnace for further heating. Finally, the crude benzole is removed in the benzole stripping tower. The existing traditional spiral plate heat exchanger has a spiral-shaped channel for oil flow and heat exchange. The spiral-shaped channel is relatively wide, and the oil travel is relatively short, resulting in low heat exchange efficiency. The temperature of the heat-exchanged rich oil is not high, causing waste of energy required for subsequent heating. In addition, the two ends of the traditional spiral plate heat exchanger are welded and sealed. After a long time of use, scale will form in the heat exchanger. The traditional method is usually chemical cleaning, which is time-consuming and labor-intensive. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a novel lean rich oil heat exchanger to solve at least one of the above technical problems.

[0004] The technical solution for solving the above technical problem is as follows: a novel lean rich oil heat exchanger, comprising a heat exchange body, the heat exchange body is composed of a first spiral plate and a second spiral plate to form a spiral first medium channel and a second medium channel, the first spiral plate and the second spiral plate are connected at the head and tail portions, first and second partitions in the left and right directions are arranged in the first medium channel and the second medium channel, the first and second partitions are arranged alternately, the right end of the first partition is flush with the heat exchange body, the left end of the first partition is shorter than the heat exchange body, the left end of the second partition is flush with the heat exchange body, and the right end of the second partition is shorter than the heat exchange body. A first pipe opening is arranged on the outside of the heat exchange body and communicates with the first medium channel, and a second pipe opening is arranged on the outside of the heat exchange body and communicates with the second medium channel.

[0005] The left side of the heat exchange body is detachably provided with a left end cover, the middle part of the left end cover is provided with a third pipe opening and the third pipe opening is communicated with the first medium channel, the right side of the heat exchange body is detachably provided with a right end cover, the middle part of the right end cover is provided with a fourth pipe opening and the fourth pipe opening is communicated with the second channel.

[0006] Further, the interval distance between the adjacent first and second partitions from the outside to the inside of the first and second medium channels is shortened in sequence.

[0007] Further, the left and right sides of the heat exchange body are provided with a plurality of second bolt holes, the left and right end covers are provided with first bolt holes, and the left and right end covers are fixed on the heat exchange body through bolts.

[0008] Further, the left and right end covers are provided with cover edges matched with the heat exchange body.

[0009] Further, the left and right end covers and the heat exchange body are provided with sealing pads.

[0010] Further, the sealing pads are matched with the left and right end covers, and the sealing pads are provided with medium holes.

[0011] The beneficial effects of the present application are as follows:

[0012] The first and second partitions are alternately arranged, the S-shaped channel is arranged on the basis of the spiral channel, the stroke distance of the oil liquid is prolonged, the turbulent flow is formed, the heat exchange efficiency is enhanced, the interval distance of the first and second partitions closer to the inside is reduced, the heat exchange efficiency of the rich oil tail end is further improved, the temperature of the rich oil is improved, the energy required for subsequent heating of the rich oil is reduced, the energy waste is reduced, the device can directly flush the inside of the medium channel through the detachable end cover, and the device is convenient, fast, low in cost, good in practicability and applicability. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the present application, and should not be regarded as a limitation to the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Fig. 1 It is a structural schematic diagram of the present application.

[0015] Fig. 2 It is an explosion diagram of the present application.

[0016] Fig. 3The utility model discloses a heat exchange body right side structure schematic diagram.

[0017] Fig. 4 The utility model discloses a sealing gasket structure schematic diagram.

[0018] In the drawings, the component list that each sign represents is as follows:

[0019] Heat exchange body 1;First pipe mouth 11;Second pipe mouth 12;First spiral plate 13;Second spiral plate 14;First medium passage 15;Second medium passage 16;First baffle 17;Second baffle 18;Left end cover 2;Third pipe mouth 21;Right end cover 3;Fourth pipe mouth 31;First bolt hole 4;Second bolt hole 5;Sealing gasket 6;Medium hole 61. Specific implementation

[0020] To make the purpose, technical scheme and advantage of the utility model embodiment clearer, the following will combine the drawings in the utility model embodiment, and the technical scheme in the utility model embodiment is clearly and completely described, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment, and the component of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the utility model.

[0022] It should be noted that: similar signs and letters indicate similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0023] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawing, or the orientation or position relationship of the utility model product when it is usually placed, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. As "horizontal" only means that it is more horizontal than "vertical", it does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0025] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "arrangement", "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements inside. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0026] Embodiment one: see Figs. 1 to 4 It is the schematic diagram of each structure of the utility model, including heat exchange body 1, the first spiral plate 13, the second spiral plate 14 cooperation in heat exchange body 1 is formed spiral first medium passage 15, second medium passage 16, the first spiral plate 13, the second spiral plate 14 head part are connected, form two end closed medium passage, first medium passage 15, second medium passage 16 are all provided with the first baffle 17, second baffle 18 of left and right direction, the first baffle 17, second baffle 18 are alternately arranged, the right end of first baffle 17 is flush with heat exchange body 1, the left end of first baffle 17 is shorter than heat exchange body 1, the left end of second baffle 18 is flush with heat exchange body 1, the right end of second baffle 18 is shorter than heat exchange body 1, the first baffle 17, second baffle 18 are alternately arranged and make the flow path of oil liquid present S shape, the outside of heat exchange body 1 is provided with first pipe mouth 11 and first pipe mouth 11 is communicated with first medium passage 15, the outside of heat exchange body 1 is provided with second pipe mouth 12 and second pipe mouth 12 is communicated with second medium passage 16;

[0027] The left side of heat exchange body 1 is detachably provided with left end cover 2, the middle part of left end cover 2 is provided with third pipe mouth 21 and third pipe mouth 21 is communicated with first medium passage 15, the right side of heat exchange body 1 is detachably provided with right end cover 3, the middle part of right end cover 3 is provided with fourth pipe mouth 31 and fourth pipe mouth 31 is communicated with second passage, left end cover 2, right end cover 3 seal the two sides of medium passage, form complete medium passage, adopt the mode of detachable end cover, facilitate the cleaning of heat exchange body 1 inside.

[0028] Specifically, the interval distance between adjacent first baffle 17, second baffle 18 from outside to inside of first medium passage 15, second medium passage 16 is shortened in turn, improve the heat exchange efficiency of rich oil tail end, improve the temperature when rich oil oil.

[0029] Specifically, the left and right sides of the heat exchange body 1 are provided with a plurality of second bolt holes 5, the left end cover 2 and the right end cover 3 are provided with first bolt holes 4, and the left end cover 2 and the right end cover 3 are fixed on the heat exchange body 1 through bolts, so that the heat exchange body 1 is convenient and quick to fix and disassemble.

[0030] Specifically, the left end cover 2 and the right end cover 3 are provided with cover edges matched with the heat exchange body 1, so that the left end cover 2 and the right end cover 3 are convenient to position and the sealing reliability is enhanced.

[0031] Specifically, the left end cover 2 and the right end cover 3 are provided with sealing pads 6 matched with the heat exchange body 1, so that the sealing reliability is enhanced.

[0032] Specifically, the sealing pads 6 are matched with the left end cover 2 and the right end cover 3, the sealing pads 6 are provided with medium holes 61, and the medium holes 61 are matched with pipe mouths provided on the left end cover 2 and the right end cover 3, so that the oil liquid is convenient to flow in and out.

[0033] In use, the first pipe mouth 11 is connected with a low-temperature oil-rich oil inlet pipe, the third pipe mouth 21 is connected with a low-temperature oil-rich oil outlet pipe, the fourth pipe mouth 31 is connected with a high-temperature oil-poor oil inlet pipe, and the second pipe mouth 12 is connected with a high-temperature oil-poor oil outlet pipe, that is, the low-temperature oil-rich oil flows from the inside of the outside tank of the heat exchange body 1, the high-temperature oil-poor oil flows from the inside of the heat exchange body 1 to the outside, the low-temperature oil-rich oil and the high-temperature oil-poor oil are heat exchanged, the temperature of the low-temperature oil-rich oil is increased and the low-temperature oil-rich oil is discharged from the inside of the heat exchange body 1, the temperature of the high-temperature oil-poor oil is decreased and the high-temperature oil-poor oil is discharged from the outside of the heat exchange body 1, the first partition plate 17 and the second partition plate 18 form S-shaped flow channels, the oil liquid stroke is increased, the turbulent flow is formed, the heat exchange efficiency is enhanced, the first partition plate 17 and the second partition plate 18 are more intensive on the inside of the heat exchange body 1, the heat exchange efficiency is further improved, and the temperature of the low-temperature oil-rich oil after heating is increased.

[0034] When the heat exchange body 1 is cleaned, the left end cover 2 and the right end cover 3 are removed, and a high-pressure water pipe is used for flushing, the first partition plate 17 and the second partition plate 18 are also parallel to the central axis of the heat exchange body 1, the flushing efficiency is higher, and the effect is better.

[0035] The above is only an optional embodiment of the utility model, and is not used for limiting the utility model, and the utility model can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0036] In addition, it should be noted that various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the utility model will not describe various possible combination manners again.

Claims

1. A novel oil heat exchanger with varying oil content, characterized in that: The heat exchanger (1) includes a heat exchanger body (1) in which a first spiral plate (13) and a second spiral plate (14) are arranged to form a spiral first medium channel (15) and a second medium channel (16). The first spiral plate (13) and the second spiral plate (14) are connected at both ends. The first medium channel (15) and the second medium channel (16) are each provided with a first partition (17) and a second partition (18) in the left-right direction. The first partition (17) and the second partition (18) are arranged alternately. The right end of the partition (17) is flush with the heat exchanger (1), the left end of the first partition (17) is shorter than the heat exchanger (1), the left end of the second partition (18) is flush with the heat exchanger (1), the right end of the second partition (18) is shorter than the heat exchanger (1), a first pipe opening (11) is provided on the outside of the heat exchanger (1) and the first pipe opening (11) is connected to the first medium channel (15), a second pipe opening (12) is provided on the outside of the heat exchanger (1) and the second pipe opening (12) is connected to the second medium channel (16); The heat exchanger (1) is provided with a detachable left end cover (2) on the left side. The left end cover (2) has a third port (21) in the middle and the third port (21) is connected to the first medium channel (15). The heat exchanger (1) is provided with a detachable right end cover (3) on the right side. The right end cover (3) has a fourth port (31) in the middle and the fourth port (31) is connected to the second channel.

2. The novel oil-rich and oil-poor heat exchanger according to claim 1, characterized in that: The spacing between adjacent first partitions (17) and second partitions (18) on the outer and inner sides of the first medium channel (15) and the second medium channel (16) is successively shortened.

3. The novel oil-rich and oil-poor heat exchanger according to claim 1, characterized in that: The heat exchanger (1) has several second bolt holes (5) on both the left and right sides, and the left end cover (2) and right end cover (3) are provided with first bolt holes (4). The left end cover (2) and right end cover (3) are fixed to the heat exchanger (1) by bolts.

4. The novel oil-rich and oil-poor heat exchanger according to claim 1, characterized in that: Both the left end cover (2) and the right end cover (3) are provided with a cover edge that cooperates with the heat exchanger (1).

5. The novel oil-rich and oil-poor heat exchanger according to claim 1, characterized in that: A sealing gasket (6) is provided between the left end cover (2), the right end cover (3) and the heat exchanger (1).

6. The novel oil-poor and oil-poor heat exchanger according to claim 5, characterized in that: The sealing gaskets (6) are all fitted with the left end cap (2) and the right end cap (3), and the sealing gaskets (6) are provided with medium holes (61).

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