CN220062693U - Steam heat accumulator with built-in heat exchanger - Google Patents
Steam heat accumulator with built-in heat exchanger Download PDFInfo
- Publication number
- CN220062693U CN220062693U CN202321112318.XU CN202321112318U CN220062693U CN 220062693 U CN220062693 U CN 220062693U CN 202321112318 U CN202321112318 U CN 202321112318U CN 220062693 U CN220062693 U CN 220062693U
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- Prior art keywords
- heat
- steam
- heat exchanger
- heat accumulator
- accumulator
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- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000009834 vaporization Methods 0.000 abstract description 5
- 230000008016 vaporization Effects 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
-
- 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 utility model relates to the technical field of steam utilization systems, and discloses a steam heat accumulator with a built-in heat exchanger. A heat exchanger is arranged in the heat accumulator shell, a steam outlet of the heat accumulator is connected with a steam inlet pipeline, and low-pressure saturated steam flowing out of the steam outlet of the heat accumulator is led into the heat accumulator again by the steam inlet pipeline and the heat exchanger for heating, so that superheated steam required by a user is generated; the generated superheated steam flows to a user from a steam outlet pipeline, so that the purpose of generating superheated steam with the superheat degree of 5-25 ℃ by utilizing a heat accumulator without using extra energy is achieved. In addition, after the heat consumption of the heat charging device for charging the heat accumulator is finished, connecting a steam inlet pipeline of the heat exchanger with other external heat sources; under the condition that the converter vaporization cooling waste heat boiler is insufficient, other high-temperature mediums are utilized to heat the medium in the heat accumulator through the heat exchanger, so that the aim of indirectly storing energy is fulfilled.
Description
Technical Field
The utility model relates to the technical field of steam utilization systems, in particular to a steam heat accumulator with a built-in heat exchanger.
Background
The converter vaporization cooling waste heat boiler absorbs heat in the converter flue gas through cooling water vaporization, and saturated steam is generated for a user to use. Only when the converter blows oxygen to smelt, the flue gas is generated, so that a flue gas heat source is intermittently generated, steam generated by the waste heat boiler is also intermittently generated, and the fluctuation of the steam generation amount in the oxygen blowing period of the converter is large, and the intermittently generated steam can be changed into continuous and stable steam to be output by arranging the steam heat accumulator device so as to be used by a user continuously.
The high-temperature high-pressure liquid water in the steam heat accumulator is flashed to generate low-pressure steam for a user, the steam generated by the high-temperature high-pressure liquid water is saturated steam according to a thermodynamic correlation law, the temperature of the saturated steam is the saturated temperature under the corresponding saturated pressure, and the steam temperature has no superheat degree. However, some users need to use steam with superheat degree, but cannot use saturated steam without superheat degree, and the saturated steam is conveyed in the pipeline to generate a large amount of condensation water due to heat dissipation of the pipeline, so that the condensation water in the pipeline easily causes water hammer to the pipeline, and the safe operation of a pipe network is endangered. How to enable the steam accumulator to generate superheated steam is a constant concern for contemporary engineers.
Disclosure of Invention
Aiming at the defects existing in the prior art, the steam heat accumulator with the built-in heat exchanger is provided, and the purpose that the superheated steam with the superheat degree of 5-25 ℃ can be generated by utilizing the heat accumulator without using extra energy is achieved.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a steam heat accumulator of built-in heat exchanger which characterized in that: the heat accumulator comprises a heat accumulator shell, a heat charging device and a heat exchanger which are arranged in the heat accumulator shell, a steam inlet pipeline and a steam outlet pipeline which penetrate through the heat accumulator shell, and a steam outlet arranged on the heat accumulator; the heat accumulator shell is internally provided with liquid water, and the heat charging device is positioned in a region below the liquid level of the liquid water; the heating device is connected with an external heat source; the steam inlet pipeline and the steam outlet pipeline on the heat accumulator shell are respectively connected with the two ends of the inlet and the outlet of the heat exchanger; the steam inlet pipeline is connected with the steam outlet and used for guiding saturated steam generated by the heat accumulator shell into the heat exchanger.
According to the technical scheme, the heat exchanger is positioned in the area below the liquid level of the liquid water.
According to the technical scheme, the heat exchanger is partially or completely positioned in the area above the liquid level of the liquid water.
According to the technical scheme, the steam inlet pipeline is disconnected with the steam outlet, and the steam inlet pipeline is connected with an external heat source.
According to the technical scheme, the heat exchanger comprises a tube bundle, a seal head tube box tube plate structure positioned at two ends of the tube bundle, a medium inlet and a medium outlet which are arranged at the outer side of the seal head tube box tube plate structure, and a bracket; the support is arranged between the end socket tube box tube plate structure and the heat accumulator shell and is used for supporting the heat exchanger; the medium inlet and the medium outlet are respectively positioned on two sides of the tube bundle, and the medium inlet and the medium outlet are respectively connected with the steam inlet pipeline and the steam outlet pipeline.
According to the technical scheme, the tube bundle consists of one or more tubes, and the tube bundle is selected from common steel tubes, steel tubes with fins, other forms of steel tubes, heat tubes or heat tubes.
According to the technical scheme, the tube bundle consists of a plurality of tubes, and the support plate, the support rod or the support plate and the support rod are arranged on the tube bundle support, so that the overall rigidity of the whole tube bundle is improved.
According to the technical scheme, the hanging plate is arranged on the tube plate structure of the head tube box and is used for temporarily hanging the heat exchanger.
According to the technical scheme, the heat accumulator shell is a spherical tank body, a horizontal cylinder tank body, a vertical tank body, an ellipsoidal tank body or a cuboid tank body according to the use requirements.
The utility model has the following beneficial effects:
1. a heat exchanger is arranged in the heat accumulator shell, a steam outlet of the heat accumulator is connected with a steam inlet pipeline, and low-pressure saturated steam flowing out of the steam outlet of the heat accumulator is led into the heat accumulator again by the steam inlet pipeline and the heat exchanger to be heated, so that superheated steam required by a user is generated; the generated superheated steam flows to a user from a steam outlet pipeline, so that the purpose of generating superheated steam with the superheat degree of 5-25 ℃ by utilizing a heat accumulator without using extra energy is achieved.
2. After the heat consumption of the heat charging device for charging the heat accumulator is finished, connecting a steam inlet pipeline of the heat exchanger with other external heat sources; under the condition that the converter vaporization cooling waste heat boiler is insufficient, other high-temperature mediums are utilized to heat the medium in the heat accumulator through the heat exchanger, so that the aim of indirectly storing energy is fulfilled.
Drawings
FIG. 1 is a schematic view of a first type of construction of a provided embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second type of architecture of a provided embodiment of the present utility model;
FIG. 3 is a schematic view of the structure of a provided embodiment of the present utility model;
in the figure, 1, a heat accumulator housing; 2. a heat charging device; 3. a heat exchanger; 3-1, a tube bundle; 3-2, a tube plate structure of the seal head tube box; 3-3, medium inlet; 3-4, medium outlet; 3-5, a bracket; 3-6, a supporting plate; 3-7, supporting rods; 3-8, hanging plates; 4. a steam inlet pipeline; 5. a steam outlet pipeline; 6. a steam outlet.
Detailed Description
The utility model will now be described in detail with reference to the drawings and examples.
Referring to fig. 1 to 3, the utility model provides a steam heat accumulator with a built-in heat exchanger.
Example 1
Comprises a heat accumulator shell 1, a heat charging device 2 and a heat exchanger 3 which are arranged in the heat accumulator shell, a steam inlet pipeline 4 and a steam outlet pipeline 5 which penetrate through the heat accumulator shell, and a steam outlet 6 which is arranged on the heat accumulator; the heat accumulator shell is internally provided with liquid water, and the heat charging device is positioned in a region below the liquid level of the liquid water; the heating device is connected with an external heat source; the steam inlet pipeline and the steam outlet pipeline on the heat accumulator shell are respectively connected with the two ends of the inlet and the outlet of the heat exchanger; the steam inlet pipeline is connected with the steam outlet and used for guiding saturated steam generated by the heat accumulator shell into the heat exchanger.
In this embodiment, the heat exchanger may be located in a region below the liquid level of the liquid water, or may be located in a region partially or entirely above the liquid level of the liquid water.
In the embodiment, a heat exchanger is arranged in a heat accumulator shell, a steam outlet of the heat accumulator is connected with a steam inlet pipeline, and low-pressure saturated steam flowing out of the steam outlet of the heat accumulator is led into the heat accumulator again by the steam inlet pipeline and the heat exchanger to be heated, so that superheated steam required by a user is generated; the generated superheated steam flows to a user from a steam outlet pipeline, so that the purpose of generating superheated steam with the superheat degree of 5-25 ℃ by utilizing a heat accumulator without using extra energy is achieved.
Example 2
The structure and principle of embodiment 2 are similar to those of embodiment 1, except that: the steam inlet pipeline is disconnected with the steam outlet and is connected with an external heat source. After the heat consumption of the heat charging device for charging the heat accumulator is finished, connecting a steam inlet pipeline of the heat exchanger with other external heat sources; under the condition that the converter vaporization cooling waste heat boiler is insufficient, other high-temperature mediums are utilized to heat the medium in the heat accumulator through the heat exchanger, so that the aim of indirectly storing energy is fulfilled.
Example 3
The structure and principle of embodiment 3 are similar to those of embodiment 1, except that: the structure of the heat exchanger is not limited to the preferred structure, and corresponding parts can be increased or decreased according to the requirements.
The heat exchanger comprises a tube bundle 3-1, a seal head tube box tube plate structure 3-2 positioned at two ends of the tube bundle, a medium inlet 3-3 and a medium outlet 3-4 arranged at the outer side of the seal head tube box tube plate structure, and a bracket 3-5; the support is arranged between the end socket tube box tube plate structure and the heat accumulator shell and is used for supporting the heat exchanger; the medium inlet and the medium outlet are respectively positioned on two sides of the tube bundle, and the medium inlet and the medium outlet are respectively connected with the steam inlet pipeline and the steam outlet pipeline.
In this embodiment, the tube bundle is composed of one or more tubes, and the tube bundle is selected from a common steel tube, a steel tube with fins, other forms of steel tubes, heat pipes, or heat pipes.
Example 4
The structure and principle of embodiment 4 are similar to those of embodiment 3, except that: when the tube bundle is composed of a plurality of tubes, the support plate 3-6, the support rod 3-7 or the support plate and the support rod are arranged on the tube bundle support in order to improve the overall rigidity of the whole tube bundle.
In this embodiment and embodiment 3, according to the use requirement, the hanging plates 3-8 may be optionally arranged on the tube plate structure of the header tube box, so as to temporarily lift the heat exchanger.
Example 5
The structure and principle of embodiment 5 is similar to those of embodiments 1 to 4, except that: a preferred structural type of the regenerator housing is given. Specifically, the heat accumulator shell selects a spherical tank body, a horizontal cylinder tank body, a vertical tank body, an ellipsoidal tank body or a cuboid tank body according to the use requirement.
The heat accumulator shell is free of large openings, so that the running safety of the spherical tank is greatly improved, the analysis design cost of the shell is reduced, and the manufacturing cost of the forge piece is reduced.
The working principle of the utility model is as follows:
the heat accumulator shell is internally provided with a heat charging device and a heat exchanger, a steam inlet pipeline and a steam outlet pipeline which penetrate through the heat accumulator shell are arranged on the heat accumulator shell, and the pipelines of the steam inlet pipeline and the steam outlet pipeline are connected with a medium inlet and a medium outlet of the heat exchanger. Meanwhile, the inside of the heat accumulator shell is also provided with necessary devices such as a steam-water separation device and the like, and the heat accumulator shell is also provided with necessary pipe orifices and facilities of the heat accumulator such as a pressure relief port, a sewage drain port, a dispersion port, a water outlet, a manhole and the like; since these components are all existing structures, they are mature products and are not specifically described.
Function 1: the present embodiment is to use the present utility model to generate superheated steam. Firstly, a heat accumulator is charged by a heat charging device, and when the pressure and the temperature of water in the heat accumulator are increased to design parameters, the heat accumulator is charged; then a valve switch of a steam outlet of the heat accumulator is opened, high-temperature and high-pressure liquid water in the heat accumulator starts to flash to generate low-pressure saturated steam, and the low-pressure saturated steam sequentially enters the heat exchanger through the steam outlet, the steam inlet pipeline and the medium inlet. Heat exchange occurs with high temperature steam or water inside the heat accumulator in the tube bundle of the heat exchanger, low pressure saturated steam is heated, the temperature of the low pressure saturated steam is increased, the saturated steam becomes superheated steam, and then the superheated steam flows to a user from a steam outlet pipeline.
Function 2: this embodiment is to use the present utility model to store additional heat. When the heat-charging steam used by the heat-charging device is consumed, and the water pressure temperature in the heat accumulator does not reach the design parameter yet, the heat charging of the heat accumulator is not started or completed, at the moment, high-temperature heat-conducting oil can flow into the heat exchanger through the steam inlet pipeline, the high-temperature heat-conducting oil exchanges heat with liquid water in the heat accumulator in the heat exchanger, the liquid water in the heat accumulator is heated, the liquid water pressure and the temperature in the heat accumulator are increased, and the temperature of the heat-conducting oil is reduced, so that the heat of the heat-conducting oil is stored in the heat accumulator. The heat exchanger functions as a heat charging device in the process, but indirectly charges heat. The function means that the rotor can have two heat charging modes at the same time, and one of the two heat charging modes is a mixed heat charging mode, namely, high-temperature and high-pressure steam is utilized to heat liquid water in the heat charging device for heat charging; another way of charging is by indirect charging, i.e. introducing a high temperature medium into the heat exchanger, and charging the liquid water in the regenerator with the heat exchanger.
The foregoing is merely illustrative of the present utility model and is not intended to limit the scope of the utility model, which is defined by the claims and their equivalents.
Claims (9)
1. The utility model provides a steam heat accumulator of built-in heat exchanger which characterized in that: the heat accumulator comprises a heat accumulator shell, a heat charging device and a heat exchanger which are arranged in the heat accumulator shell, a steam inlet pipeline and a steam outlet pipeline which penetrate through the heat accumulator shell, and a steam outlet arranged on the heat accumulator; the heat accumulator shell is internally provided with liquid water, and the heat charging device is positioned in a region below the liquid level of the liquid water; the heating device is connected with an external heat source; the steam inlet pipeline and the steam outlet pipeline on the heat accumulator shell are respectively connected with the two ends of the inlet and the outlet of the heat exchanger; the steam inlet pipeline is connected with the steam outlet and used for guiding saturated steam generated by the heat accumulator shell into the heat exchanger.
2. The heat exchanger-built-in steam heat accumulator according to claim 1, wherein: the heat exchanger is located in a region below the liquid water level.
3. The heat exchanger-built-in steam heat accumulator according to claim 1, wherein: the heat exchanger is partially or wholly located in a region above the liquid level of the liquid water.
4. A steam accumulator with built-in heat exchanger according to claim 2 or 3, characterized in that: the steam inlet pipeline is disconnected with the steam outlet and is connected with an external heat source.
5. The heat exchanger-built-in steam heat accumulator according to claim 1, wherein: the heat exchanger comprises a tube bundle, end socket tube box tube plate structures positioned at two ends of the tube bundle, a medium inlet and a medium outlet which are arranged at the outer side of the end socket tube box tube plate structures, and a bracket; the support is arranged between the end socket tube box tube plate structure and the heat accumulator shell and is used for supporting the heat exchanger; the medium inlet and the medium outlet are respectively positioned on two sides of the tube bundle, and the medium inlet and the medium outlet are respectively connected with the steam inlet pipeline and the steam outlet pipeline.
6. The heat exchanger-built-in steam heat accumulator according to claim 5, wherein: the tube bundle consists of one or more tubes, and the tube bundle is selected from common steel tubes, steel tubes with fins, steel tubes in other forms, heat pipes or heat pipes.
7. The heat exchanger-built-in steam heat accumulator according to claim 6, wherein: the tube bundle consists of a plurality of tubes, and the support plate, the support rod or the support plate and the support rod are arranged on the tube bundle support, so that the overall rigidity of the whole tube bundle is improved.
8. The heat exchanger-built-in steam heat accumulator according to claim 5, wherein: a lifting plate is arranged on the tube plate structure of the seal head tube box and is used for temporarily lifting the heat exchanger.
9. A steam heat accumulator with a built-in heat exchanger according to any one of claims 1-3, 5-8, characterized in that: the heat accumulator shell is a spherical tank body, a horizontal cylinder tank body, a vertical tank body, an ellipsoidal tank body or a cuboid tank body according to the use requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112318.XU CN220062693U (en) | 2023-05-05 | 2023-05-05 | Steam heat accumulator with built-in heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321112318.XU CN220062693U (en) | 2023-05-05 | 2023-05-05 | Steam heat accumulator with built-in heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220062693U true CN220062693U (en) | 2023-11-21 |
Family
ID=88787104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321112318.XU Active CN220062693U (en) | 2023-05-05 | 2023-05-05 | Steam heat accumulator with built-in heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220062693U (en) |
-
2023
- 2023-05-05 CN CN202321112318.XU patent/CN220062693U/en active Active
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| GR01 | Patent grant |