CN210861942U - Device for recovering cold energy through plate-fin heat exchanger - Google Patents
Device for recovering cold energy through plate-fin heat exchanger Download PDFInfo
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- CN210861942U CN210861942U CN201920901067.0U CN201920901067U CN210861942U CN 210861942 U CN210861942 U CN 210861942U CN 201920901067 U CN201920901067 U CN 201920901067U CN 210861942 U CN210861942 U CN 210861942U
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- heat exchanger
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- fin heat
- liquid argon
- cold
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Abstract
The utility model relates to a cryogenic air separation technical field of metallurgical industry, especially, relate to a retrieve device of cold volume through plate-fin heat exchanger, it is many to have solved the equipment heat transfer number of times that exists among the prior art, make energy loss big, bring the shortcoming of a lot of unnecessary energy losses for holistic operation, low temperature liquid argon is stored in liquid argon storage tank, need pressurize to the required pressure of technology through low temperature liquid argon pump for satisfying follow-up technological requirement, the plate-fin heat exchanger of space division cold box is got into through vacuum cold insulation pipeline after the low temperature liquid argon pressurization, cold volume for retrieving low temperature liquid argon introduces one strand positive current air as the heat source at plate-fin heat exchanger's the other end and carries out countercurrent flow heat transfer, cold volume is through the heat exchange and is retrieved in the positive current air with the transmission, make it liquefy to get into in the follow-up technological process, reach cold volume recycle.
Description
Technical Field
The utility model relates to a cryogenic air separation technical field of metallurgical industry especially relates to a retrieve device of cold volume through plate-fin heat exchanger.
Background
In the cryogenic field, the common technological process of low-temperature liquid reheat gasification is that low-temperature liquid is pressurized by a liquid pump and then sent into a water bath type vaporizer, and the working principle of the water bath type vaporizer is that the heat of saturated steam is utilized to heat normal-temperature water in the vaporizer.
However, the heat exchange times of the device are large, so that the energy loss is large, and a lot of unnecessary energy loss is brought to the whole operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the equipment heat transfer number of times that exists among the prior art many for energy loss is big, brings the shortcoming of a lot of unnecessary energy losses for holistic operation, and the device of cold volume is retrieved through plate-fin heat exchanger that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a device for recovering cold energy through a plate-fin heat exchanger comprises a liquid argon storage tank and the plate-fin heat exchanger, wherein a vacuum cold insulation pipeline is arranged on one side of the liquid argon storage tank, and a low-temperature liquid argon pump is arranged on the vacuum cold insulation pipeline;
the other end of the vacuum cold insulation pipeline is provided with an air separation cold box, a plate-fin heat exchanger is arranged in the air separation cold box, and a positive flow air pipeline is arranged on one side of the plate-fin heat exchanger.
Preferably, one side of the low-temperature liquid argon pump is provided with a low-temperature liquid argon pump outlet valve.
Preferably, a positive flow air pipeline valve is arranged on the positive flow air pipeline.
Preferably, one end of the vacuum cold insulation pipeline extends to the interior of the air separation cold box and is communicated with the plate-fin heat exchanger.
Preferably, one end of the positive flow air pipeline is positioned inside the air separation cold box.
Preferably, the liquid argon storage tank stores liquid argon.
Compared with the prior art, the utility model provides high cold volume recovery efficiency has reduced cold volume loss, and whole cold volume recovery process does not have any pollution and additional energy consumption, and not only environmental protection but also economy, and maintenance work volume is few.
Drawings
Fig. 1 is the structure schematic diagram of a device for recovering cold energy through a plate-fin heat exchanger provided by the utility model.
In the figure: the system comprises a liquid argon storage tank 1, a low-temperature liquid argon pump 2, a low-temperature liquid argon pump outlet valve 3, a vacuum cold insulation pipeline 4, an air separation cold box 5, a plate-fin heat exchanger 6, a positive flow air pipeline 7 and a positive flow air pipeline valve 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a device for retrieving cold volume through plate-fin heat exchanger, including liquid argon storage tank 1 and plate-fin heat exchanger 6, one side of this liquid argon storage tank 1 is provided with vacuum cold insulation pipeline 4, and is provided with cryogenic liquid argon pump 2 on the vacuum cold insulation pipeline 4, and the other end of vacuum cold insulation pipeline 4 is provided with empty cold box 5 that divides, and the inside of this empty cold box 5 that divides is provided with plate-fin heat exchanger 6, and one side of plate-fin heat exchanger 6 is provided with positive current air conduit 7.
In this embodiment, one side of low temperature liquid argon pump 2 is provided with low temperature liquid argon pump outlet valve 3, carries out flow control through low temperature liquid argon pump outlet valve 3.
Wherein, the positive flow air pipeline 7 is provided with a positive flow air pipeline valve 8, and the flow of the positive flow air is adjusted through the positive flow air pipeline valve 8.
Specifically, one end of the vacuum cold insulation pipeline 4 extends to the inside of the air separation cold box 5 and is communicated with the plate-fin heat exchanger 6, and one end of the positive flow air pipeline 7 is positioned inside the air separation cold box 5.
In the embodiment, low-temperature liquid argon is stored in a liquid argon storage tank 1, is pressurized to the pressure required by the process through a low-temperature liquid argon pump 2, enters a vacuum cold insulation pipeline 4 through a low-temperature liquid argon pump outlet valve 3, then flows into a plate-fin heat exchanger 6 in an air separation cold box 5, and positive flow air exchanging heat with the plate-fin heat exchanger enters the plate-fin heat exchanger 6 through a positive flow air pipeline 7 and a positive flow air pipeline valve 8. At the moment, the cold energy of the low-temperature liquid argon is transferred to the positive flow air as a heat exchange place through the plate-fin heat exchanger 6, and the low-temperature liquid argon is reheated and vaporized and sent to a user; the positive flow air is condensed and liquefied to be used as raw material liquid and sent to the next process, and the whole process of cold energy recovery is completed.
Furthermore, in order to ensure that the plate-fin heat exchanger 6 can work well, regulating valves for positive and reverse flow media, namely the outlet valve 3 of the low-temperature liquid argon pump and the positive flow air pipeline valve 8, are specially installed, so that a good regulating effect is achieved.
The utility model discloses under the prerequisite that does not increase any energy consumption loss, abundant cold volume of air separation system has been retrieved to abundant, and starts comparatively rapidly, and maintenance work volume is less.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A device for recovering cold energy through a plate-fin heat exchanger comprises a liquid argon storage tank (1) and the plate-fin heat exchanger (6), and is characterized in that a vacuum cold insulation pipeline (4) is arranged on one side of the liquid argon storage tank (1), and a low-temperature liquid argon pump (2) is arranged on the vacuum cold insulation pipeline (4);
the other end of the vacuum cold insulation pipeline (4) is provided with an air separation cold box (5), a plate-fin heat exchanger (6) is arranged in the air separation cold box (5), and a positive flow air pipeline (7) is arranged on one side of the plate-fin heat exchanger (6).
2. Device for recovering cold through a plate-fin heat exchanger according to claim 1, characterized in that the side of the cryogenic liquid argon pump (2) is provided with a cryogenic liquid argon pump outlet valve (3).
3. Device for recovering cold through a plate-fin heat exchanger according to claim 1, characterized in that the positive air duct (7) is provided with a positive air duct valve (8).
4. The device for recovering cold energy through a plate-fin heat exchanger according to claim 1, wherein one end of the vacuum cold insulation pipeline (4) extends to the interior of the air separation cold box (5) and is communicated with the plate-fin heat exchanger (6).
5. The device for recovering cold through a plate-fin heat exchanger according to claim 1, characterized in that one end of the positive air duct (7) is located inside the air separation cold box (5).
6. Device for recovering cold through a plate-fin heat exchanger according to claim 1, characterized in that the liquid argon storage tank (1) has liquid argon stored inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920901067.0U CN210861942U (en) | 2019-06-15 | 2019-06-15 | Device for recovering cold energy through plate-fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920901067.0U CN210861942U (en) | 2019-06-15 | 2019-06-15 | Device for recovering cold energy through plate-fin heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210861942U true CN210861942U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920901067.0U Active CN210861942U (en) | 2019-06-15 | 2019-06-15 | Device for recovering cold energy through plate-fin heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210861942U (en) |
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2019
- 2019-06-15 CN CN201920901067.0U patent/CN210861942U/en active Active
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