CN108709441B - Plate heat exchanger with reinforcing device - Google Patents
Plate heat exchanger with reinforcing device Download PDFInfo
- Publication number
- CN108709441B CN108709441B CN201810921138.3A CN201810921138A CN108709441B CN 108709441 B CN108709441 B CN 108709441B CN 201810921138 A CN201810921138 A CN 201810921138A CN 108709441 B CN108709441 B CN 108709441B
- Authority
- CN
- China
- Prior art keywords
- fluid
- plate
- heat exchange
- main body
- outlet
- 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.)
- Active
Links
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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a plate heat exchanger with a reinforcing device, which comprises a heat exchange main body, and a cover plate and a bottom plate which are respectively positioned at the upper end and the lower end of the heat exchange main body; the heat exchange main body is provided with a fluid inlet channel and a fluid outlet channel, and the cover plate is correspondingly provided with an inlet and an outlet; the fluid inlet channel and the fluid outlet channel of the heat exchange main body are internally provided with reinforcing devices, the reinforcing devices comprise at least two drainage plates, the upper ends of the drainage plates are fixedly connected with the cover plate, and the lower ends of the drainage plates are fixedly connected with the plate surface of the bottom plate; the drainage plates in the reinforcing device are matched to form at least one drainage angle for guiding fluid to a large flow resistance area in the heat exchange main body. The invention has simple and reasonable structure, effectively strengthens the pressure bearing capacity of the fluid inlet and outlet channels through the reinforcing device, ensures that the fluid flows more uniformly through the drainage function and improves the heat exchange effect.
Description
Technical Field
The invention relates to the technical field of heat exchange, in particular to a plate heat exchanger with a reinforcing device.
Background
The plate heat exchanger is a high-efficiency heat exchange device formed by stacking heat exchange plates, and comprises a heat exchange main body, and cover plates and bottom plates which are respectively positioned at the upper end and the lower end of the heat exchange main body, wherein the heat exchange main body comprises heat exchange plates, and adjacent heat exchange plates are mutually propped and supported by compression patterns, so that the adjacent heat exchange plates keep a distance between each other to form a first medium channel and a second medium channel for respectively flowing a first fluid and a second fluid, and the heat exchange between liquid and liquid or between liquid and vapor is realized.
The traditional plate type heat exchange plate is at least provided with a group of fluid inlet channels and fluid outlet channels which are arranged vertically on the plate surface, the fluid inlet channels and the fluid outlet channels are formed by abutting and connecting bosses of stepped structures formed at the fluid inlet and outlet positions on the adjacent heat exchange plates, fluid flows into or flows out of the heat exchange main body through the fluid inlet channels and the fluid outlet channels respectively, the fluid pressure on two sides of the heat exchange plates of the heat exchange main body is relatively balanced, the pressure on two sides of the cover plate and the pressure on two sides of the bottom plate are non-parallel, the fluid pressure on one side is the gas pressure on the other side, the cover plate and the bottom plate can resist the pressure difference on two sides only through the strength of the plate body, but the fluid pressure and the pulse pressure in the fluid inlet channels and the fluid outlet channels are larger, the long-time acting on the bottom plate and the cover plate can necessarily cause the bulge and deformation of the cover plate and the bottom plate, so that the connection structures on two ends of the heat exchange main body are broken, even a pulling force is generated, the connection structures between the heat exchange plates of the heat exchange main body are torn, and the plate type heat exchange structures of the plate type heat exchange plates are broken.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the plate heat exchanger with the reinforcing device, by additionally arranging the reinforcing device in the fluid inlet and outlet channels, the pressure bearing capacity of the fluid inlet and outlet channels is effectively enhanced, the stability of the structure is ensured, and meanwhile, the fluid can be led to a large flow resistance area of the heat exchange main body, so that the fluid distribution is more uniform, and the heat exchange efficiency is improved.
In order to achieve the above object, the present invention provides a plate heat exchanger with a reinforcing device, which comprises a heat exchange main body, and a cover plate and a bottom plate respectively positioned at the upper end and the lower end of the heat exchange main body;
the heat exchange main body is provided with a fluid inlet channel and a fluid outlet channel, and the cover plate is correspondingly provided with an inlet and an outlet;
the fluid inlet channel and the fluid outlet channel of the heat exchange main body are internally provided with reinforcing devices, the reinforcing devices comprise at least two drainage plates, the upper ends of the drainage plates are fixedly connected with the cover plate, and the lower ends of the drainage plates are fixedly connected with the plate surface of the bottom plate;
the drainage plates in the reinforcing device are matched to form at least one drainage angle for guiding fluid to a large flow resistance area in the heat exchange main body.
Further provided is that: the heat exchange main body is of a quadrilateral structure, the fluid inlet and the fluid outlet are respectively positioned at the corners of the two ends of the plate body, and the fluid is guided to the corners adjacent to the same end by the drainage angle.
Further provided is that: the inlet and the outlet of the cover plate are respectively connected with an inlet joint and an outlet joint;
the upper end of the drainage plate is fixedly connected with the pipe wall of the inlet joint or the outlet joint.
Further provided is that: and positioning slots for the drainage plates to be inserted are formed in the inner pipe walls of the inlet joint and the outlet joint.
Further provided is that: the side wall of the drainage plate body is arranged at intervals with the inner wall of the fluid inlet channel or the fluid outlet channel.
Compared with the prior art, the invention has simple and reasonable structure, the upper end of the reinforcing device is connected with the liquid inlet and outlet connectors, the lower end of the reinforcing device is connected with the plate surface of the bottom plate, the pressure bearing capacity of the liquid inlet and outlet channels is effectively enhanced through the action of the reinforcing device, and meanwhile, the reinforcing device can guide the fluid to the large flow resistance area of the heat exchange main body, so that the uniformity of fluid distribution is effectively improved, and the heat exchange efficiency is improved.
Drawings
FIG. 1 is a schematic view of a plate heat exchanger with reinforcement means according to a first embodiment of the invention;
fig. 2 is a schematic view of a plate heat exchanger with reinforcement means according to a second embodiment of the invention;
FIG. 3 is a partial cross-sectional view of a pair of plate units;
FIG. 4 is a schematic view of the structure of the reinforcement device in the fluid channel I;
FIG. 5 is a schematic diagram II of the structure of the reinforcement device in the fluid channel;
fig. 6 is a schematic view of the structure of the reinforcement device in the fluid channel.
The following reference numerals are attached thereto in combination with the accompanying drawings:
1. a cover plate; 2. a bottom plate; 3. a heat exchange main body; 31. a first heat exchange plate; 311. a first fluid inlet; 312. a first fluid outlet; 313. a second fluid inlet; 314. a second fluid outlet; 32. a second heat exchange plate; 33. a first fluid inlet channel; 34. a first fluid outlet channel; 35. a second fluid inlet passage; 36. a second fluid outlet passage; 37. a first media channel; 38. a second media channel; 4. a reinforcing device; 41. a drainage plate; 42. drainage angle; 5. a first fluid inlet fitting; 51. positioning the slot; 6. a first fluid outlet connection; 7. a second fluid inlet fitting; 8. a second fluid outlet connection.
Detailed Description
One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
The invention relates to a plate heat exchanger with a reinforcing device, as shown in figures 1, 2 and 3, which comprises a heat exchange main body 3, and a cover plate 1 and a bottom plate 2 which are positioned at the upper end and the lower end of the heat exchange main body 3, wherein the heat exchange main body 3 comprises heat exchange plates which are mutually stacked and matched, and adjacent heat exchange plates are mutually supported against each other through profiling patterns, so that the adjacent heat exchange plates keep a space to form a medium channel for fluid to flow, and two or more medium channels are formed in the heat exchange main body 3 to realize heat exchange of different fluid media; the heat exchange main body 3 is provided with at least one group of fluid inlet channels and fluid outlet channels which are perpendicular to the plate surface, and each group of fluid inlet and outlet channels is communicated with one medium channel, so that fluid flows into the corresponding medium channel through the fluid inlet channels, flows into the fluid outlet channels and flows out after heat exchange is carried out through the medium channels.
A conventional plate heat exchanger in which two fluids exchange heat will be described below as an example.
Example 1
As shown in fig. 1, the plate heat exchanger is of a quadrilateral structure, preferably rectangular, and comprises a heat exchange main body 3, and a cover plate 1 and a base plate 2 respectively positioned at the upper end and the lower end of the heat exchange main body 3, wherein the heat exchange main body 3 is formed by alternately stacking a first heat exchange plate 31 and a second heat exchange plate 32, and a first medium channel 37 and a second medium channel 38 for respectively flowing a first fluid and a second fluid are formed in the heat exchange main body 3 through the cooperation of the first heat exchange plate 31 and the second heat exchange plate 32; the four corners of the first heat exchange plate 31 and the four corners of the second heat exchange plate 32 are respectively provided with a first fluid inlet 311, a first fluid outlet 312, a second fluid inlet 313, and a second fluid outlet 314, and the first fluid and the second fluid respectively flow in from the first fluid inlet 311 and the second fluid inlet 313, and flow out from the first fluid outlet 312 and the second fluid outlet 314.
The first fluid inlets 311 on the first heat exchange plates 31 and the first fluid inlets 311 on the second heat exchange plates 32 of the staggered stack are matched to form first fluid inlet channels 33 of the vertical heat exchange body 3 communicated with the first medium channels 37, and correspondingly, the cover plate 1 is provided with first inlets connected with the first fluid inlet channels 33 and passing through, and the first inlets are connected with the first fluid inlet joints 5; similarly, the first fluid outlet 312, the second fluid inlet 313, the second fluid outlet 314 on the first heat exchange plate 31 and the corresponding first fluid outlet 312, second fluid inlet 313, and second fluid outlet 314 on the second heat exchange plate 32 cooperate to form a first fluid outlet channel 34, a second fluid inlet channel 35, and a second fluid outlet channel 36, which are in communication with the first medium channel 37, and the second medium channel 38, respectively, and the cover plate 1 is provided with a first outlet, a second inlet, and a second outlet, which are in communication with the first fluid outlet channel 34, the second fluid outlet channel 36, and the second fluid outlet channel 36, respectively, and are connected with the first fluid outlet joint 6, the second fluid inlet joint 7, and the second fluid outlet joint 8, respectively.
The first fluid inlet channel 33, the first fluid outlet channel 34, the second fluid inlet channel 35 and the second fluid outlet channel 36 are respectively provided with a reinforcing device 4, and the reinforcing device 4 arranged in the first fluid inlet channel 33 is taken as an example, and comprises at least two drainage plates 41, wherein the upper ends of the drainage plates 41 are welded with the inner wall of the first fluid inlet joint 5, the lower ends of the drainage plates 41 are welded with the plate surface of the bottom plate 2, and the cover plate 1 and the bottom plate 2 are pulled by the drainage plates 41, so that the bearing capacity of the first fluid inlet channel 33 is enhanced, and the working stability of the plate heat exchanger is ensured; at the same time, at least one drainage angle 42 for guiding the first fluid to the large flow resistance area of the plate body is formed in the drainage plate 41 in the reinforcing device 4 in a matching way, and preferably, the drainage angle 42 guides the first fluid to the corner adjacent to the same end of the plate body; similarly, the reinforcement means 4 located in the first fluid outlet channel 34, in the second fluid inlet channel 35, in the second fluid outlet channel 36 are all the same in structure and function as the reinforcement means 4 located in the first fluid inlet channel 33.
Example two
As shown in fig. 2, the plate heat exchanger has a quadrilateral structure, preferably a rectangle, and comprises a heat exchange main body 3, and a cover plate 1 and a bottom plate 2 respectively positioned at the upper end and the lower end of the heat exchange main body 3, wherein the heat exchange main body 3 is formed by alternately stacking a first heat exchange plate 31 and a second heat exchange plate 32, and a first medium channel 37 and a second medium channel 38 for respectively flowing a first fluid and a second fluid are formed in the heat exchange main body 3 through the cooperation of the first heat exchange plate 31 and the second heat exchange plate 32; the two ends of the plate surfaces of the first heat exchange plate 31 and the second heat exchange plate 32 are respectively provided with a first fluid inlet 311 and a first fluid outlet 312 correspondingly; the first fluid inlet 311 and the first fluid outlet 312 on the first heat exchange plate 31 and the corresponding first fluid inlet 311 and first fluid outlet 312 on the second heat exchange plate 32 of the staggered stack are matched to form a first fluid inlet channel 33 and a first fluid outlet channel 34 which are communicated with the first medium channel 37 and vertical to the heat exchange main body 3, and the corresponding first inlet and first outlet which are respectively communicated with the first fluid inlet channel 33 and the first fluid outlet channel 34 are arranged on the cover plate 1, and the corresponding first inlet and first outlet are respectively connected with the first fluid inlet joint 5 and the first fluid outlet joint 6; the second fluid inlet 313 and the second fluid outlet 314 of the second medium channel 38 are disposed parallel to the heat exchange body 3 and located at the peripheral side of the heat exchange body 3, and the second fluid inlet and the second fluid outlet may be disposed at opposite sides of the heat exchange body 3, or may be disposed at the same side or adjacent sides.
The first fluid inlet channel 33 and the first fluid outlet channel 34 are respectively provided with a reinforcing device 4, and take the reinforcing device 4 arranged in the first fluid inlet channel 33 as an example, the reinforcing device comprises at least two drainage plates 41, the upper ends of the drainage plates 41 are welded with the inner wall of the first fluid inlet joint 5, the lower ends of the drainage plates 41 are welded with the plate surface of the bottom plate 2, and the cover plate 1 and the bottom plate 2 are pulled by the drainage plates 41, so that the bearing capacity of the first fluid inlet channel 33 is enhanced, and the working stability of the plate heat exchanger is ensured; at the same time, at least one drainage angle 42 for guiding the first fluid to the large flow resistance area of the plate body is formed in the drainage plate 41 in the reinforcing device 4 in a matching way, and preferably, the drainage angle 42 guides the first fluid to the corner adjacent to the same end of the plate body; similarly, the reinforcement means 4 located in the first fluid outlet channel 34 are all the same in structure and function as the reinforcement means 4 located in the first fluid inlet channel 33.
It is further preferred that the inner walls of the inlet and outlet fittings connected to the cover plate 1 are provided with positioning slots 51 for inserting the drainage plate 41, including the first fluid inlet fitting 5, the first fluid outlet fitting 6, the second fluid inlet fitting 7 and the second fluid outlet fitting 8, so that the reinforcing apparatus 4 is conveniently installed in the fluid channel.
Further preferably, the side walls of the plate body of the drainage plate 41 are arranged at intervals with the inner walls of the fluid inlet channel or the fluid outlet channel, and the fluid inlet channel and the fluid outlet channel comprise a first fluid inlet channel, a first fluid outlet channel and a second fluid inlet channel and a second fluid outlet channel which are vertically arranged on the heat exchange main body 3, namely, intervals are reserved between the drainage plate 41 and the first fluid inlet edge and the second fluid outlet edge, and accordingly the first fluid and the second fluid can smoothly flow into the first medium channel 37 and the second medium channel 38.
As shown in fig. 4, 5 and 6, at least two drainage plates 41 of the reinforcing device 4 are provided, and three drainage plates 41 of fig. 4 and 5 are all three, wherein in fig. 4, the three drainage plates 41 are matched in a fluid channel to form a Y-shaped structure, and the three drainage plates 41 of fig. 5 are uniformly distributed in the fluid channel and separated to form three identical drainage angles 42; the flow-guiding plates 41 of fig. 6 are five and uniformly distributed in the fluid channel.
Compared with the prior art, the invention has simple and reasonable structure, the upper end of the reinforcing device is connected with the liquid inlet and outlet connectors, the lower end of the reinforcing device is connected with the plate surface of the bottom plate, the pressure bearing capacity of the liquid inlet and outlet channels is effectively enhanced through the action of the reinforcing device, and meanwhile, the reinforcing device can guide the fluid to the large flow resistance area of the heat exchange main body, so that the uniformity of fluid distribution is effectively improved, and the heat exchange efficiency is improved.
The above disclosure is merely an example of the present invention, but the present invention is not limited thereto, and any variations that can be considered by a person skilled in the art should fall within the protection scope of the present invention.
Claims (5)
1. The plate heat exchanger with the reinforcing device is characterized by comprising a heat exchange main body, and a cover plate and a bottom plate which are respectively positioned at the upper end and the lower end of the heat exchange main body;
the heat exchange main body is provided with a fluid inlet channel and a fluid outlet channel, and the cover plate is correspondingly provided with an inlet and an outlet;
the fluid inlet channel and the fluid outlet channel of the heat exchange main body are internally provided with reinforcing devices, the reinforcing devices comprise at least two drainage plates, the upper ends of the drainage plates are fixedly connected with the cover plate, and the lower ends of the drainage plates are fixedly connected with the plate surface of the bottom plate;
the drainage plates in the reinforcing device are matched to form at least one drainage angle for guiding fluid to a large flow resistance area in the heat exchange main body.
2. A plate heat exchanger with reinforcement means according to claim 1, wherein the heat exchange body has a quadrangular structure, the fluid inlet and the fluid outlet being located at the corners of the two ends of the plate body, respectively, and the drainage angle guiding the fluid towards the corners adjacent to the same end.
3. A plate heat exchanger with reinforcement means according to claim 1 or 2, characterized in that the inlet and outlet of the cover plate are connected with an inlet connection and an outlet connection, respectively;
the upper end of the drainage plate is fixedly connected with the pipe wall of the inlet joint or the outlet joint.
4. A plate heat exchanger with reinforcement means according to claim 3, wherein the inner walls of the inlet and outlet fittings are provided with positioning slots for the insertion of drainage plates.
5. A plate heat exchanger with reinforcement means according to claim 1, characterized in that the plate body side walls of the flow-guiding plate are arranged at a distance from the inner walls of the fluid inlet channels or the fluid outlet channels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921138.3A CN108709441B (en) | 2018-08-14 | 2018-08-14 | Plate heat exchanger with reinforcing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810921138.3A CN108709441B (en) | 2018-08-14 | 2018-08-14 | Plate heat exchanger with reinforcing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108709441A CN108709441A (en) | 2018-10-26 |
| CN108709441B true CN108709441B (en) | 2023-08-25 |
Family
ID=63875755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810921138.3A Active CN108709441B (en) | 2018-08-14 | 2018-08-14 | Plate heat exchanger with reinforcing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108709441B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387765A (en) * | 1980-12-22 | 1983-06-14 | Alfa-Laval Ab | Arrangement for locating the plates included in a plate heat exchanger |
| CN1426525A (en) * | 2000-05-19 | 2003-06-25 | 阿尔法·拉瓦尔股份公司 | Plate pack, heat transfer plate and plate heat exchanger |
| KR20130068335A (en) * | 2011-12-15 | 2013-06-26 | 주식회사 한국쿨러 | Support panel and heat exchanger adopting the same |
| CN105588107A (en) * | 2016-01-26 | 2016-05-18 | 山西国峰煤电有限责任公司 | Deslagging waste heat utilization device for circulating fluidized bed boiler |
| DE102015104959A1 (en) * | 2015-03-31 | 2016-10-06 | Carsten Falley | Counterflow plate heat exchangers |
| CN208671747U (en) * | 2018-08-14 | 2019-03-29 | 宁波市哈雷换热设备有限公司 | A kind of heat-exchangers of the plate type with bracing means |
-
2018
- 2018-08-14 CN CN201810921138.3A patent/CN108709441B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4387765A (en) * | 1980-12-22 | 1983-06-14 | Alfa-Laval Ab | Arrangement for locating the plates included in a plate heat exchanger |
| CN1426525A (en) * | 2000-05-19 | 2003-06-25 | 阿尔法·拉瓦尔股份公司 | Plate pack, heat transfer plate and plate heat exchanger |
| KR20130068335A (en) * | 2011-12-15 | 2013-06-26 | 주식회사 한국쿨러 | Support panel and heat exchanger adopting the same |
| DE102015104959A1 (en) * | 2015-03-31 | 2016-10-06 | Carsten Falley | Counterflow plate heat exchangers |
| CN105588107A (en) * | 2016-01-26 | 2016-05-18 | 山西国峰煤电有限责任公司 | Deslagging waste heat utilization device for circulating fluidized bed boiler |
| CN208671747U (en) * | 2018-08-14 | 2019-03-29 | 宁波市哈雷换热设备有限公司 | A kind of heat-exchangers of the plate type with bracing means |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108709441A (en) | 2018-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100950689B1 (en) | Plate type heat exchanger | |
| GB201009322D0 (en) | Heat exchanger with manifold strengthening protrusion | |
| JP6718806B2 (en) | Fluid distribution device | |
| TW200533882A (en) | A plate heat exchanger | |
| EP3816556A1 (en) | Heat exchanger | |
| EP3745072A1 (en) | A dual media safety heat exchanger | |
| CN108571907B (en) | Plate type flue gas recovery heat exchange device | |
| CN105651087A (en) | Plate heat exchanger | |
| KR20150006013A (en) | Plate heat exchanger | |
| CN108709441B (en) | Plate heat exchanger with reinforcing device | |
| JP6177459B1 (en) | Plate heat exchanger and refrigeration cycle equipment | |
| JP6190352B2 (en) | Fluid distribution device and operation method thereof | |
| CN103940264A (en) | Non-clean water dredging type heat exchange device provided with built-in flow channel separation structure | |
| KR20190075466A (en) | Printed Circuit Type Heat Exchanger Having Intermediate Plate | |
| CN208671747U (en) | A kind of heat-exchangers of the plate type with bracing means | |
| CN108827041B (en) | Plate heat exchanger for chemical production | |
| KR101149983B1 (en) | A plate heat exchanger of welding type | |
| CN102914185B (en) | Dredging wide flow channel heat exchange device for sewage or surface water | |
| EP3835702A1 (en) | Gasket and assembly for a plate heat exchanger | |
| CN115803578A (en) | Double-wall plate type heat exchanger | |
| CN208487992U (en) | A kind of board-like off-gas recovery heat-exchanger rig | |
| WO2020125205A1 (en) | Heat exchanger flat tube and heat exchanger having same | |
| CN218066037U (en) | Chloride ion corrosion resistant duplex stainless steel wide channel plate heat exchanger | |
| CN219531788U (en) | Paired plate unit and plate heat exchanger with paired plate unit | |
| JP2005083623A (en) | Heat exchange unit and multilayer heat exchanger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |