CN112833694A - Novel heat accumulating type heat exchanger - Google Patents
Novel heat accumulating type heat exchanger Download PDFInfo
- Publication number
- CN112833694A CN112833694A CN201911160676.6A CN201911160676A CN112833694A CN 112833694 A CN112833694 A CN 112833694A CN 201911160676 A CN201911160676 A CN 201911160676A CN 112833694 A CN112833694 A CN 112833694A
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- exchange tube
- spiral heat
- heat exchanger
- outer spiral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005338 heat storage Methods 0.000 claims abstract description 24
- 239000011232 storage material Substances 0.000 claims abstract description 18
- 238000004146 energy storage Methods 0.000 claims abstract description 9
- -1 compound salt Chemical class 0.000 claims abstract description 5
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Inorganic materials [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 claims abstract description 5
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005553 drilling Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 230000001172 regenerating effect Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a novel energy storage type heat exchanger which comprises an annular cylinder, an outer spiral heat exchange tube and an inner spiral heat exchange tube which are arranged in the inner cavity of the annular cylinder, and an inlet and an outlet which are arranged on one side of the annular cylinder and are respectively communicated with the outer spiral heat exchange tube and the inner spiral heat exchange tube, wherein a heat storage material is packaged in the annular inner cavity between the outer spiral heat exchange tube and the inner spiral heat exchange tube. The heat storage material is NaNO3And KNO3And (3) compound salt. Compared with the prior heat exchanger, the invention has the following advantages and effects: 1. the occupied area is small, and particularly under the condition that the field space is limited, such as an ocean drilling platform, the advantage is more remarkable; 2. a low-grade heat source is used, so that the gradient utilization of energy is realized, and the fuel is saved; 3. the whole heat exchange effect is more efficient, energy-saving and reliable, and the cost is low.
Description
Technical Field
The invention relates to the technical field of heat exchange devices, in particular to a waste heat exchanger produced by a large diesel engine.
Background
Regenerative heat exchangers are used in many industrial processes. The heat storage technology, especially the phase change heat storage technology is an important technology for reasonably and effectively utilizing the existing energy, optimizing and using renewable energy and improving the energy utilization efficiency, and is a very active research direction in the world energy-saving field in the last 20 years. With the mutual permeation and rapid development in the fields of solar energy, engineering thermophysics, aerospace technology, industrial waste heat recovery and utilization and the like, a rich condition is provided for the further research and development of phase change heat storage, but the problems of the current heat storage materials cause the heat storage type heat exchanger to have some problems, which are mainly shown in the following steps:
(1) the heat exchange capacity is poor;
(2) the chemical stability of the phase change heat storage material is poor;
(3) the heat storage material corrodes the heat exchanger pipeline seriously.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a novel energy storage type heat exchanger integrating heat storage type heat exchange with non-heat storage type heat exchange, which makes full use of waste heat resources of high-temperature exhaust of a large diesel engine, improves the utilization rate of energy, can greatly reduce the temperature of the high-temperature exhaust of the diesel engine discharged into the environment after passing through the heat exchanger, is beneficial to environmental protection and energy conservation, has low cost, and can bring considerable economic benefits for enterprises.
The purpose of the invention is realized as follows:
the novel energy storage type heat exchanger comprises an annular cylinder, an outer spiral heat exchange tube and an inner spiral heat exchange tube which are arranged in the inner cavity of the annular cylinder, an inlet and an outlet which are arranged on one side of the annular cylinder and are respectively communicated with the outer spiral heat exchange tube and the inner spiral heat exchange tube, and heat storage materials are packaged in the annular inner cavity between the outer spiral heat exchange tube and the inner spiral heat exchange tube.
The above scheme further comprises:
the heat storage material is NaNO3And KNO3And (3) compound salt.
The outer spiral heat exchange tube and the inner spiral heat exchange tube are stainless steel metal tubes.
And a valve is arranged at the inlet and the outlet which are communicated with the outer spiral heat exchange tube and the inner spiral heat exchange tube.
And a heat-insulating layer is arranged in or outside the annular cylinder.
Due to the adoption of the technical scheme, compared with the existing heat exchanger, the heat exchanger has the following advantages and effects: 1. the occupied area is small, and particularly under the condition that the field space is limited, such as an ocean drilling platform, the advantage is more remarkable; 2. a low-grade heat source is used, so that the gradient utilization of energy is realized, and the fuel is saved; 3. the whole heat exchange effect is more efficient, energy-saving and reliable, and the cost is low.
Drawings
Fig. 1 is an overall schematic view of a regenerative heat exchanger according to the present invention;
FIG. 2 is a schematic view of a spiral heat exchange tube;
fig. 3 is an overall sectional view of the regenerative heat exchanger.
In the figure: the heat exchanger comprises an outer spiral heat exchange tube 1, an inner spiral heat exchange tube 2, an inner spiral heat exchange tube outlet 3, an annular inner cavity between the inner spiral heat exchange tube and the outer spiral heat exchange tube 4, a heat storage material 5, an annular cylinder 6 and an outer spiral heat exchange tube outlet 7.
Detailed Description
The invention is further described in detail in connection with the following figures 1-3:
embodiment 1, a novel energy storage formula heat exchanger includes annular barrel 6, installs outer spiral heat exchange tube 1 and interior spiral heat exchange tube 2 in annular barrel inner chamber to and set up in annular barrel one side, and respectively with outer spiral heat exchange tube and interior spiral heat exchange tube intercommunication business turn over, export (3 and 7), the annular inner chamber is packed thermal storage material 5 between outer spiral heat exchange tube 1 and interior spiral heat exchange tube 2.
The above embodiment 1 further comprises:
the heat storage material 5 is NaNO3And KNO3And (3) compound salt.
The outer spiral heat exchange tube 1 and the inner spiral heat exchange tube 2 are both stainless steel metal tubes.
And a valve is arranged at the inlet and the outlet which are communicated with the outer spiral heat exchange tube 1 and the inner spiral heat exchange tube 2.
And a heat-insulating layer is arranged in or outside the annular cylinder.
The flow directions of the outer spiral heat exchange tube 1 and the inner spiral heat exchange tube 2 are reverse.
The outer spiral heat exchange tube 1 and the inner spiral heat exchange tube 2 are both stainless steel metal tubes. The stainless steel spiral heat exchange tube is divided into an inner spiral heat exchange tube and an outer spiral heat exchange tube.
When the heat exchanger works, high-temperature fluid to be cooled enters the heat exchanger from the inlet of the inner spiral heat exchange tube 2, passes through the inner spiral heat exchange tube 2, the heat storage material 5 encapsulated in the annular chamber and the outer spiral heat exchange tube 1 in sequence for heat exchange and cooling, and then flows out from the outlet 3 of the inner spiral heat exchange tube 2; cooling water flows in from a water inlet of the external spiral heat exchange tube 1, firstly flows through the external spiral heat exchange tube 1 to exchange heat with the heat storage material, and flows out from an outlet 7 of the external spiral heat exchange tube 1; when the gas flows through the heat exchange tube 1, the gas exchanges heat with the heat storage material 5 enclosed in the annular tube, and the heat storage function is realized. When the high-temperature heat source is insufficient, the energy stored in the heat storage material 5 encapsulated in the middle chamber can be released to serve as a supplementary heat source to meet the requirement of normal work.
Claims (5)
1. The utility model provides a novel energy storage formula heat exchanger includes annular barrel, installs outer spiral heat exchange tube and interior spiral heat exchange tube in annular barrel inner chamber to and set up in annular barrel one side, and respectively with the business turn over, export, its characterized in that of outer spiral heat exchange tube and interior spiral heat exchange tube intercommunication: and heat storage materials are packaged in the annular inner cavity between the outer spiral heat exchange tube and the inner spiral heat exchange tube.
2. The novel energy storage heat exchanger of claim 1, wherein: the heat storage material is NaNO3And KNO3And (3) compound salt.
3. A novel energy storage heat exchanger according to claim 1 or 2, characterized in that: the outer spiral heat exchange tube and the inner spiral heat exchange tube are stainless steel metal tubes.
4. A novel energy storage heat exchanger according to claim 3 wherein: and a valve is arranged at the inlet and the outlet which are communicated with the outer spiral heat exchange tube and the inner spiral heat exchange tube.
5. The novel energy storage heat exchanger of claim 4, wherein: and a heat-insulating layer is arranged in or outside the annular cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160676.6A CN112833694A (en) | 2019-11-23 | 2019-11-23 | Novel heat accumulating type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911160676.6A CN112833694A (en) | 2019-11-23 | 2019-11-23 | Novel heat accumulating type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112833694A true CN112833694A (en) | 2021-05-25 |
Family
ID=75921857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911160676.6A Pending CN112833694A (en) | 2019-11-23 | 2019-11-23 | Novel heat accumulating type heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112833694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264953A (en) * | 2022-09-23 | 2022-11-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Supporting device for ultra-large heat storage type heater and mounting method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005140390A (en) * | 2003-11-06 | 2005-06-02 | Sumitomo Precision Prod Co Ltd | Heat exchange method and latent heat storing type heat exchanger |
| CN202329329U (en) * | 2011-10-11 | 2012-07-11 | 河北科技大学 | Jacket type phase change thermal storage heat exchanger |
| CN202547463U (en) * | 2012-04-09 | 2012-11-21 | 河北科技大学 | Three-sleeve type phase change heat storage heat exchanger |
| CN103376011A (en) * | 2012-04-13 | 2013-10-30 | 极地熊（上海）储能技术有限公司 | Phase-change heat accumulation unit |
| CN205784773U (en) * | 2016-05-30 | 2016-12-07 | 郑州轻工业学院 | A kind of phase change thermal storage heat exchanger |
| CN208620883U (en) * | 2018-07-17 | 2019-03-19 | 南京工业大学 | A kind of rotatable jacket type phase-change accumulation energy storage heater |
| CN211977664U (en) * | 2019-11-23 | 2020-11-20 | 中石化石油工程技术服务有限公司 | Novel heat accumulating type heat exchanger |
-
2019
- 2019-11-23 CN CN201911160676.6A patent/CN112833694A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005140390A (en) * | 2003-11-06 | 2005-06-02 | Sumitomo Precision Prod Co Ltd | Heat exchange method and latent heat storing type heat exchanger |
| CN202329329U (en) * | 2011-10-11 | 2012-07-11 | 河北科技大学 | Jacket type phase change thermal storage heat exchanger |
| CN202547463U (en) * | 2012-04-09 | 2012-11-21 | 河北科技大学 | Three-sleeve type phase change heat storage heat exchanger |
| CN103376011A (en) * | 2012-04-13 | 2013-10-30 | 极地熊（上海）储能技术有限公司 | Phase-change heat accumulation unit |
| CN205784773U (en) * | 2016-05-30 | 2016-12-07 | 郑州轻工业学院 | A kind of phase change thermal storage heat exchanger |
| CN208620883U (en) * | 2018-07-17 | 2019-03-19 | 南京工业大学 | A kind of rotatable jacket type phase-change accumulation energy storage heater |
| CN211977664U (en) * | 2019-11-23 | 2020-11-20 | 中石化石油工程技术服务有限公司 | Novel heat accumulating type heat exchanger |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115264953A (en) * | 2022-09-23 | 2022-11-01 | 中国空气动力研究与发展中心超高速空气动力研究所 | Supporting device for ultra-large heat storage type heater and mounting method |
| CN115264953B (en) * | 2022-09-23 | 2022-12-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | Supporting device for ultra-large heat storage type heater and mounting method |
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