CN113294317A - Combustion cylinder - Google Patents
Combustion cylinder Download PDFInfo
- Publication number
- CN113294317A CN113294317A CN202110762707.6A CN202110762707A CN113294317A CN 113294317 A CN113294317 A CN 113294317A CN 202110762707 A CN202110762707 A CN 202110762707A CN 113294317 A CN113294317 A CN 113294317A
- Authority
- CN
- China
- Prior art keywords
- stud
- cylinder body
- combustion cylinder
- studs
- combustion
- 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.)
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Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 100
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/002—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for driven by internal combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/06—Cooling; Heating; Prevention of freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
Abstract
The invention provides a combustion cylinder, which relates to the technical field of combustion cylinders and comprises: the combustion cylinder body is a hollow cylinder; the stud areas are axially arranged along the combustion cylinder body, and each stud area comprises a plurality of studs welded on the inner wall of the combustion cylinder body; along the direction that the medium flows into the combustion cylinder body, the arrangement density of the studs in the stud area is gradually increased. According to the invention, the problem of low heat exchange efficiency in the prior art is solved by arranging the studs on the inner wall of the combustion cylinder body, and the heat exchange efficiency of the combustion cylinder body is improved.
Description
Technical Field
The invention relates to the technical field of combustion cylinders, in particular to a combustion cylinder.
Background
A gas absorption type air source heat pump unit is an integral unit which takes gas as a heating source, ammonia as a refrigerant and ammonia water solution as an absorbent and is used for indirect heating such as heating, hot water and the like. The air energy is effectively utilized due to the adoption of the reverse Carnot cycle. The fuel consumption of the gas absorption type air source heat pump is only about 50% of that of a gas boiler, so that the gas absorption type air source heat pump is an efficient and energy-saving heat pump technology.
The generator is the core component of the gas absorption type air source heat pump, and is mainly responsible for applying pressure to blood (namely ammonia water) of the gas absorption type air source heat pump so as to enable the blood to make a circulation through a condenser evaporator. At present, a combustion cylinder is installed in an existing generator, and a medium in the combustion cylinder is heated by heating the combustion cylinder, and finally heat exchange is performed with water. In addition, the combustion cylinder can also be applied to a compressor in a Gas Engine Heat Pump (GHP for short), and meanwhile, the combustion cylinder is not limited to the above-mentioned application scenarios.
The inventor thinks that the heat exchange surface of the combustion cylinder in the existing generator adopts the heat exchange fin ring cast by silica sol to increase the heat exchange area. The silica sol casting process is complex, the manufacturing period is long, and the vacuum brazing process is adopted when the fin ring is connected with the combustion cylinder main body, so that the manufacturing cost of the process is too high. In addition, the existing scheme needs to open a mold due to silica sol casting, has poor manufacturing flexibility and is inconvenient for the research and development of new products.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a combustion cylinder, which solves the problems of the prior art, such as high manufacturing cost and long manufacturing period.
To achieve the above and other related objects, the present invention provides a combustion can, comprising:
the combustion cylinder body is a hollow cylinder;
the stud areas are axially arranged along the combustion cylinder body, and each stud area comprises a plurality of studs welded on the inner wall of the combustion cylinder body;
along the direction that the medium flows into the combustion cylinder body, the arrangement density of the studs in the stud area is gradually increased.
In an embodiment of the present invention, the combustion cylinder body has an outer diameter of 100 to 600mm, a length of 400 to 1000mm, and a wall thickness of 3 to 10 mm.
In an embodiment of the present invention, the studs welded in the combustion cylinder body are staggered.
In an embodiment of the present invention, the stud region includes a first stud region, a second stud region and a third stud region; the first stud area comprises 10-40 stud layers welded along the circumferential direction of the inner wall of the combustion cylinder body; the second stud area comprises 5-20 stud layers welded along the circumferential direction of the inner wall of the combustion cylinder body; the third stud area comprises 4-16 stud layers welded along the circumferential direction of the inner wall of the combustion cylinder body; the number of stud layers of the first stud area is the largest; the number of stud layers in the third stud region is the smallest.
In an embodiment of the present invention, the stud layer includes at least 20 studs, and the studs of each stud layer are uniformly welded to the inner wall of the combustion cylinder body along the circumferential direction of the combustion cylinder body.
In an embodiment of the present invention, the number of studs in the stud layer of the first stud region is the largest; the number of studs of the stud layer of the third stud region is minimal.
In an embodiment of the invention, the studs of the adjacent stud layers are staggered.
In an embodiment of the invention, a staggered angle between the studs of the adjacent stud layers in the first stud region is the smallest, and a staggered angle between the studs of the adjacent stud layers in the third stud region is the largest.
In an embodiment of the present invention, the diameter of the stud is 8-12 mm, and the height is 5-50 mm.
In an embodiment of the present invention, the heights of the studs in different stud regions are different along the axial direction of the combustion cylinder body.
As described above, the combustion cylinder of the present invention has the following advantageous effects:
1. the studs with different specifications are welded in different stud areas in the combustion cylinder body, so that flame and heat in the combustion cylinder body can be distributed uniformly, the heat exchange of the medium of the combustion cylinder body is uniform, and the heat exchange effect is improved.
2. By welding the studs staggered in the combustion cylinder body, on one hand, the flow path of the medium in the combustion cylinder body can be prolonged, so that the contact area of the medium and the studs is increased, the heat exchange area can be effectively increased, and the heat exchange efficiency is improved; on the other hand, the staggered studs can increase the resistance of the flue, thereby reducing the flowing speed of the medium in the combustion cylinder body, further increasing the heat exchange time and improving the heat exchange effect.
3. Through designing relevant special plane, adopt resistance welding, can realize automated production, obtain wanted heat transfer effect through arranging in a flexible way to the screw in addition, can effectively shorten development cycle.
Drawings
FIG. 1 is an isometric view of a combustion can of the present invention;
FIG. 2 shows a cross-sectional view of a combustion can of the present invention.
Description of the element reference numerals
1. A combustion can body; 2. a stud region; 21. a first stud region; 22. a second stud region; 221. a first screw group; 222. a second set of studs; 23. a third stud region; 24. a stud layer; 3. a stud.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
Please refer to fig. 1-2. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1, the present invention provides a combustion can, which includes a combustion can body 1 and a plurality of studs 3, wherein the combustion can body 1 is in a hollow cylinder shape, and the plurality of studs 3 are welded and fixed on an inner wall of the combustion can body 1.
Referring to fig. 1, in the embodiment, the outer diameter of the combustion cylinder body 1 is 219mm, the length is 631mm, and the wall thickness is 8mm, for specific specification parameters of the combustion cylinder body 1, in actual production and installation, because the gas absorption type air source heat pump unit is applied to generators with different parameter specifications under different environments, and for specific size parameters of the combustion cylinder body 1, adaptive modification can be made according to the specification of the generator. In addition, the combustion cylinder body 1 can be applied to a compressor in a heat pump of a gas engine, and the specific size parameters of the combustion cylinder body are adaptively adjusted according to the specification of the compressor which is actually applied; meanwhile, the combustion cylinder body 1 is not limited to the above-listed application scenarios.
Referring to fig. 1, in the present embodiment, the combustion cylinder body 1 and the stud 3 are both made of 20# steel, and the 20# steel has good toughness, plasticity and welding performance, and when the combustion cylinder body 1 is heated, the material can make both the combustion cylinder body 1 and the stud 3 have good heat transfer efficiency, so as to improve the heat exchange efficiency in the compressor.
Referring to fig. 2, a plurality of stud regions 2 are divided on the inner wall of the combustion cylinder body 1, and each stud region 2 includes a plurality of studs 3 welded on the inner wall of the combustion cylinder body 1, in this embodiment, the plurality of stud regions 2 includes a first stud region 21, a second stud region 22 and a third stud region 23, and the first stud region 21, the second stud region 22 and the third stud region 23 are sequentially arranged along the axial direction of the combustion cylinder body 1.
Referring to fig. 2, in the present embodiment, the first stud region 21 includes 22 stud layers 24 welded along the circumferential direction of the inner wall of the combustion cylinder body 1; the second stud region 22 comprises 9 stud layers 24 welded along the circumferential direction of the inner wall of the combustion cylinder body 1; the third stud region 23 comprises 7 stud layers 24 welded along the circumferential direction of the inner wall of the combustion cylinder body 1; and each stud layer 24 in the first stud region 21 contains 36 studs 3, each stud layer 24 in the second stud region 22 contains 32 studs 3, and each stud layer 24 in the third stud region 23 contains 20 studs 3.
In the actual application process, the medium in the combustion cylinder body 1 flows in from the third stud area 23 with fewer studs and flows out from the first stud area 21 with more studs, and the arrangement mode can better reduce flame and distribute heat, so that the medium can be preheated to be heated, and on one hand, the structure can relatively reduce the manufacturing cost; on the other hand, the heat exchange efficiency can be improved.
Referring to fig. 2, the diameter of the stud 3 is 8 to 12mm, the height is 5 to 50mm, and the type specifications of the studs 3 in the first stud area 21, the second stud area 22 and the third stud area 23 are different. In the present embodiment, the studs 3 of the first stud region 21 have a diameter of 8mm and a height of 30 mm; the second stud region 22 further comprises a first stud group 221 and a second stud group 222, the first stud group 221 is adjacent to the first stud region 21, the second stud group 222 is adjacent to the third stud region 23, the first stud group 221 comprises 4 stud layers 24, the stud 3 of the first stud group 221 is 8mm in diameter and 20mm in height, the second stud group 222 comprises 5 stud layers 24, and the stud 3 of the second stud group 222 is 8mm in diameter and 15mm in height; the studs 3 of the third stud region 23 have a diameter of 8mm and a height of 15 mm.
Through the data, the studs 3 with different specifications are adopted in each stud area 2, so that flame and heat in the combustion cylinder body 1 can be uniformly distributed, and the heat exchange of the medium of the combustion cylinder body 1 is uniform. In the actual production process, as the gas engine heat pump is applied to compressors with different parameters and specifications possibly required under different environments, the size of the stud 3 in the combustion cylinder body 1 can be modified adaptively according to the set heat exchange efficiency of the compressor.
Referring to fig. 2, the studs 3 welded in the combustion cylinder body 1 are staggered, and the studs of the adjacent stud layers 24 are staggered. In this embodiment, two adjacent stud layers 24 in the first stud region 21 are staggered by 5 degrees, two adjacent stud layers 24 in the second stud region 22 are staggered by 5.63 degrees, and two adjacent stud layers 24 in the third stud region 23 are staggered by 9 degrees; the two stud layers 24 at the junction of the first stud region 21 and the second stud region 22 are staggered by 5 degrees, and the two stud layers 24 at the junction of the second stud region 22 and the third stud region 23 are staggered by 5.63 degrees.
In actual work, the studs 3 are staggered by an angle, so that on one hand, the flow path of a medium in the combustion cylinder body 1 can be prolonged, the contact area of the medium and the studs 3 is increased, the heat exchange area can be effectively increased, and the heat exchange efficiency is improved; on the other hand, the staggered studs 3 can increase the flue resistance, so that the flowing speed of the medium in the combustion cylinder body 1 is reduced, the heat exchange time is prolonged, and the heat exchange effect is improved.
Referring to fig. 2, in the present embodiment, a distance between the stud layer 24 in the first stud region 21 far away from the second stud region 22 and the opening of the combustion cylinder body 1 far away from the third stud region 23 is 43mm, a distance between the stud layer 24 in the third stud region 23 far away from the second stud region 22 and the opening of the combustion cylinder body 1 far away from the first stud region 21 is 100mm, and a distance between two adjacent stud layers 24 in the combustion cylinder body 1 is 4 mm.
In summary, in the combustion cylinder provided by the invention, the combustion cylinder body 1 is internally divided into the plurality of stud areas 2, studs 3 with different specifications are welded in each stud area 2, and the arrangement density of the studs 3 in the stud areas 2 is gradually decreased along the axial direction of the combustion cylinder body 1; the studs 3 welded in the combustion cylinder body 1 are staggered with each other, the staggered angles of the studs 3 in each stud region 2 are different, the staggered angle between the studs 3 of the stud layers 24 adjacent to each first stud region 21 is the smallest, the staggered angle between the studs 3 of the stud layers 24 adjacent to each third stud region 23 is the largest, and the studs 3 in each stud region 2 are different in specification, number and staggered angle, so that the heat exchange area and the flue resistance in the combustion cylinder body 1 are increased, flame and heat are distributed more effectively, and further the heat exchange efficiency of the combustion cylinder body 1 is improved. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A combustion can, comprising:
the combustion cylinder body is a hollow cylinder;
the stud areas are axially arranged along the combustion cylinder body, and each stud area comprises a plurality of studs welded on the inner wall of the combustion cylinder body;
along the direction that the medium flows into the combustion cylinder body, the arrangement density of the studs in the stud area is gradually increased.
2. A combustion can as defined in claim 1, wherein: the outer diameter of the combustion cylinder body is 100-600 mm, the length is 400-1000 mm, and the wall thickness is 3-10 mm.
3. A combustion can as defined in claim 1, wherein: the studs welded in the combustion cylinder body are staggered.
4. A combustion can as defined in claim 1, wherein: the stud region comprises a first stud region, a second stud region and a third stud region;
the first stud area comprises 10-40 stud layers welded along the circumferential direction of the inner wall of the combustion cylinder body;
the second stud area comprises 5-20 stud layers welded along the circumferential direction of the inner wall of the combustion cylinder body;
the third stud area comprises 4-16 stud layers welded along the circumferential direction of the inner wall of the combustion cylinder body;
the number of stud layers of the first stud area is the largest; the number of stud layers in the third stud region is the smallest.
5. The combustion can of claim 4, wherein: the stud layer comprises at least 20 studs, and the studs of each stud layer are uniformly welded on the inner wall of the combustion cylinder body along the circumferential direction of the combustion cylinder body.
6. The combustion can of claim 4, wherein: the number of studs of the stud layer of the first stud region is the largest; the number of studs of the stud layer of the third stud region is minimal.
7. The combustion can of claim 4, wherein: and the studs of the adjacent stud layers are staggered.
8. The combustion can of claim 4, wherein: the staggered angle between the studs of the adjacent stud layers in the first stud area is the smallest, and the staggered angle between the studs of the adjacent stud layers in the third stud area is the largest.
9. A combustion can as defined in claim 1, wherein: the diameter of the stud is 8-12 mm, and the height is 5-50 mm.
10. A combustion can as defined in claim 1, wherein: the heights of the studs in different stud areas are different along the axial direction of the combustion cylinder body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2021101564961 | 2021-02-04 | ||
| CN202110156496.1A CN112832979A (en) | 2021-02-04 | 2021-02-04 | Combustion cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294317A true CN113294317A (en) | 2021-08-24 |
Family
ID=75932060
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110156496.1A Pending CN112832979A (en) | 2021-02-04 | 2021-02-04 | Combustion cylinder |
| CN202110762707.6A Pending CN113294317A (en) | 2021-02-04 | 2021-07-06 | Combustion cylinder |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110156496.1A Pending CN112832979A (en) | 2021-02-04 | 2021-02-04 | Combustion cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN112832979A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404900A1 (en) * | 1973-04-11 | 1974-10-17 | Chausson Usines Sa | FASTENING DEVICE FOR HEAT EXCHANGER WITH A WATER BOX MADE OF COMPRESSED COMPOUND |
| CN2175396Y (en) * | 1993-07-09 | 1994-08-24 | 清华大学 | Element inside the tubular for improving heat exchange |
| CN101813426A (en) * | 2009-02-04 | 2010-08-25 | 茂名重力石化机械制造有限公司 | Spiral ring canal nailhead tube heat exchanger and reinforced heat transfer method |
| CN207445652U (en) * | 2017-10-13 | 2018-06-05 | 福州大学 | The crystallizer of crystallizer structure and the application structure |
| CN108917174A (en) * | 2018-09-05 | 2018-11-30 | 西安交通大学 | A kind of cast aluminium silicon magnesium gas water-heating furnace of pneumoelectric coupling limit condensation |
-
2021
- 2021-02-04 CN CN202110156496.1A patent/CN112832979A/en active Pending
- 2021-07-06 CN CN202110762707.6A patent/CN113294317A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2404900A1 (en) * | 1973-04-11 | 1974-10-17 | Chausson Usines Sa | FASTENING DEVICE FOR HEAT EXCHANGER WITH A WATER BOX MADE OF COMPRESSED COMPOUND |
| CN2175396Y (en) * | 1993-07-09 | 1994-08-24 | 清华大学 | Element inside the tubular for improving heat exchange |
| CN101813426A (en) * | 2009-02-04 | 2010-08-25 | 茂名重力石化机械制造有限公司 | Spiral ring canal nailhead tube heat exchanger and reinforced heat transfer method |
| CN207445652U (en) * | 2017-10-13 | 2018-06-05 | 福州大学 | The crystallizer of crystallizer structure and the application structure |
| CN108917174A (en) * | 2018-09-05 | 2018-11-30 | 西安交通大学 | A kind of cast aluminium silicon magnesium gas water-heating furnace of pneumoelectric coupling limit condensation |
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| Publication number | Publication date |
|---|---|
| CN112832979A (en) | 2021-05-25 |
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Application publication date: 20210824 |