CN210602905U - Heat transfer device is stabilized to crude oil - Google Patents
Heat transfer device is stabilized to crude oil Download PDFInfo
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- CN210602905U CN210602905U CN201921150348.3U CN201921150348U CN210602905U CN 210602905 U CN210602905 U CN 210602905U CN 201921150348 U CN201921150348 U CN 201921150348U CN 210602905 U CN210602905 U CN 210602905U
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Abstract
The utility model discloses a crude oil stabilizing heat exchange device, which is characterized by comprising an upper heat exchanger (1) and a lower heat exchanger (2); the crude oil before stabilization is circulated in a tube pass (11) of the upper heat exchanger (1); the stabilized crude oil circulates in the tube pass (21) of the lower heat exchanger (2); the shell pass of the upper heat exchanger and the shell pass of the lower heat exchanger are communicated to form a closed chamber (3); a heat exchange medium is filled in the closed cavity; the heat exchange medium is used for carrying out phase change heat exchange in the closed cavity; the phase change heat exchange is used for conducting heat between the crude oil before stabilization and the crude oil after stabilization; the problem of current heat exchanger shell side scale deposit back scale removal difficult is solved.
Description
Technical Field
The utility model relates to a heat exchanger that crude oil used at defeated stable in-process of collection.
Background
At present, heat exchanger equipment in a crude oil stabilizing process in a crude oil conveying process is a fixed tube plate heat exchanger or a floating head heat exchanger.
The heat exchanger equipment has a pipe side medium which is stabilized crude oil, a shell side medium which is stabilized crude oil or crude oil before the pipe side is stabilized and crude oil after the shell side is stabilized.
The adopted heat exchange mode is that the crude oil before stabilization and the crude oil after stabilization directly exchange heat through a heat exchange tube of the heat exchanger, and no matter the shell side is the crude oil before stabilization or the crude oil after stabilization, the heat exchanger can generate serious scaling phenomenon after being used for a period of time, thereby influencing normal production; and the scale layer on the shell side is very difficult to remove, and the equipment is seriously and directly scrapped.
Disclosure of Invention
In view of this, the utility model provides a heat transfer device is stabilized to crude oil solves the difficult problem of scale removal behind the scale deposit of current heat exchanger shell side.
In order to achieve the above object, the heat exchanger for stabilizing crude oil is characterized by comprising:
an upper heat exchanger and a lower heat exchanger;
the former crude oil is circulated and stabilized in the tube pass of the upper heat exchanger;
the tube side of the lower heat exchanger is internally circulated with stabilized crude oil;
the shell pass of the upper heat exchanger and the shell pass of the lower heat exchanger are communicated into a closed chamber;
a heat exchange medium is filled in the closed cavity;
the heat exchange medium is used for carrying out phase change heat exchange in the closed cavity;
and the phase change heat exchange is used for transferring heat between the crude oil before stabilization and the crude oil after stabilization.
Preferably, the heat exchange medium is water or a superconducting liquid or an organic liquid.
Preferably, the closed chamber is divided into a liquid phase space and a gas phase space;
the height of the liquid phase space is higher than that of the tube side of the lower heat exchanger.
The utility model discloses following beneficial effect has:
the utility model discloses crude oil stabilization heat transfer device comprises two heat exchangers, on one hand, the crude oil before and after stabilization is led to all go through the tube pass, on the other hand, the shell passes of the two heat exchangers are communicated into a closed cavity, and a heat transfer medium is filled into the closed cavity; the heat exchange medium is evaporated after obtaining the vaporization heat of the stabilized crude oil in the closed chamber, and then the condensed heat is transferred to the crude oil before stabilization; the phase change of the heat exchange medium is utilized for heat exchange, so that the purpose of heat exchange of crude oil in two tube passes is achieved; by adopting the technical scheme, even if the heat exchanger is scaled, the heat exchanger can only be scaled in the tube pass, and the heat exchange medium of the shell pass is not easy to scale, so that the problem of difficult scale removal after the shell pass of the existing heat exchanger is scaled can be effectively solved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of a heat exchange device for stabilizing crude oil according to an embodiment of the present invention;
fig. 2 is a longitudinal sectional view of fig. 1.
Detailed Description
The present invention will be described below based on examples, but it should be noted that the present invention is not limited to these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. However, for parts not described in detail, those skilled in the art can fully understand the present invention.
Furthermore, those skilled in the art will appreciate that the drawings are provided for purposes of illustrating the objects, features, and advantages of the invention and are not necessarily drawn to scale.
Also, unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, the meaning of "includes but is not limited to".
Fig. 1 is the utility model discloses heat transfer device is stabilized to crude oil's embodiment's schematic structure. As shown in fig. 1, a crude oil stabilizing heat exchange device comprises an upper heat exchanger 1 and a lower heat exchanger 2;
the former crude oil is circulated and stabilized in the tube pass 11 of the upper heat exchanger 1, and the latter crude oil is circulated and stabilized in the tube pass 21 of the lower heat exchanger 2; the shell pass of the upper heat exchanger and the shell pass of the lower heat exchanger are communicated to form a closed cavity 3, and a heat exchange medium is filled in the closed cavity and is used for carrying out phase change heat exchange in the closed cavity; the function of the phase change heat exchange of the heat exchange medium is to transfer heat between the crude oil before stabilization and the crude oil after stabilization.
Preferably, the heat exchange medium is water or a superconducting or organic liquid.
In fig. 1 and 2, the closed chamber is divided into a liquid phase space and a gas phase space, and the height of the liquid phase space is higher than that of the tube pass 21 of the lower heat exchanger 2; that is, the heat exchange medium should completely flow through the tube pass 21 of the lower heat exchanger 2, because the high-temperature stabilized crude oil is filled in the tube pass 21 of the lower heat exchanger 2, and the heat transfer efficiency is higher when the heat exchange medium completely flows through the tube pass 21 of the lower heat exchanger 2.
Specifically, combine the attached drawing, to the utility model discloses a heat transfer device is stabilized to crude oil's technical scheme makes further explanation:
the inlet temperature of the stabilized crude oil is generally 160-170 ℃; the crude oil before stabilization and the crude oil after stabilization both flow in the tube pass, wherein the temperature of the crude oil before stabilization is low, so the crude oil flows in the tube pass 11 of the heat exchanger 1, and the temperature of the crude oil after stabilization is high, and the crude oil flows in the tube pass 21 of the heat exchanger 2;
the shell sides of the upper heat exchanger 1 and the lower heat exchanger 2 are communicated to form a closed chamber 3, and heat exchange media (water, superconducting liquid or organic liquid and the like) are filled in the closed chamber 3; the closed chamber 3 takes the liquid level of the heat exchange medium as an interface and is divided into a liquid phase space and a gas phase space; the height of the liquid phase space is preferably higher than the tube pass 21 of the lower heat exchanger;
because the stabilized crude oil with the temperature of 160-170 ℃ circulates in the tube pass 21 of the lower heat exchanger 2, the stabilized crude oil transfers the heat to the heat exchange medium through the tube pass 21, the heat exchange medium is gasified into a gas phase under the action of the high temperature, namely, the heat exchange medium obtains the heat of vaporization from the stabilized crude oil, and the heat exchange medium of the gas phase with the obtained heat of vaporization is evaporated and rises to a gas phase space;
in the gas phase space, the low-temperature crude oil before stabilization circulates in the tube pass 11 of the upper heat exchanger 1, so that a gas-phase heat exchange medium obtaining heat of vaporization is contacted with the tube pass 11 of the upper heat exchanger 1, the gas-phase heat exchange medium obtaining heat of vaporization is condensed after releasing heat of vaporization at low temperature, the heat of condensation of the heat exchange medium is transferred to the crude oil before stabilization of the tube pass 11, and the crude oil before stabilization is heated after obtaining heat of condensation;
the heated heat exchange medium takes away the heat of the stabilized crude oil in the lower heat exchanger 2 of the liquid phase space continuously and gasifies the heat, then the heat is transferred to the stabilized crude oil in the upper heat exchanger 1 in a condensation mode, and the steps are repeated in this way to form dynamic heat exchange balance;
in conclusion, even if the heat exchanger is scaled, only the tube pass can be scaled, and the scaling problem in the tube pass can be solved by an automatic online mechanical scaling mode or other scaling modes, so that the conditions that the scaling of the shell pass of the heat exchanger, namely the outside of the tube bundle, is difficult to remove and the scaling of the fixed tube plate type heat exchanger is serious and directly scrapped are effectively avoided.
The above-mentioned embodiments are merely embodiments for expressing the invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, substitutions, modifications, etc. can be made without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (3)
1. A heat transfer device is stabilized to crude oil, its characterized in that includes:
an upper heat exchanger (1) and a lower heat exchanger (2);
the crude oil before stabilization is circulated in a tube pass (11) of the upper heat exchanger (1);
the stabilized crude oil circulates in the tube pass (21) of the lower heat exchanger (2);
the shell pass of the upper heat exchanger and the shell pass of the lower heat exchanger are communicated to form a closed chamber (3);
a heat exchange medium is filled in the closed cavity;
the heat exchange medium is used for carrying out phase change heat exchange in the closed cavity;
and the phase change heat exchange is used for transferring heat between the crude oil before stabilization and the crude oil after stabilization.
2. The heat exchange device for stabilizing crude oil according to claim 1, wherein:
the heat exchange medium is water or superconducting liquid or organic liquid.
3. The apparatus for heat exchange of crude oil stabilization according to claim 1 or 2, characterized in that:
the closed cavity is divided into a liquid phase space and a gas phase space;
the height of the liquid phase space is higher than that of the tube side of the lower heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150348.3U CN210602905U (en) | 2019-07-22 | 2019-07-22 | Heat transfer device is stabilized to crude oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921150348.3U CN210602905U (en) | 2019-07-22 | 2019-07-22 | Heat transfer device is stabilized to crude oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210602905U true CN210602905U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921150348.3U Active CN210602905U (en) | 2019-07-22 | 2019-07-22 | Heat transfer device is stabilized to crude oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210602905U (en) |
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2019
- 2019-07-22 CN CN201921150348.3U patent/CN210602905U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220114 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee after: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. Patentee after: China National Petroleum Corporation Limited Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Street No. 263 Patentee before: DAQING PETROLEUM ADMINISTRATION Co.,Ltd. |
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| TR01 | Transfer of patent right |