CN113272613A - Heat exchange area of plate type heat exchanger heating plate - Google Patents

Heat exchange area of plate type heat exchanger heating plate Download PDF

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Publication number
CN113272613A
CN113272613A CN201980087134.2A CN201980087134A CN113272613A CN 113272613 A CN113272613 A CN 113272613A CN 201980087134 A CN201980087134 A CN 201980087134A CN 113272613 A CN113272613 A CN 113272613A
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CN
China
Prior art keywords
corrugation
line
crest
lies
axis along
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Pending
Application number
CN201980087134.2A
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Chinese (zh)
Inventor
巴特洛米耶·希缅楚克
沃希切奇·米恰克
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Setherspo
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Setherspo
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/046—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being linear, e.g. corrugations
    • 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
    • F28D9/0031—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 the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—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 the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—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 the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/083—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning capable of being taken apart
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0022—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for chemical reactors
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0042—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for foodstuffs
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0059—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for petrochemical plants
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • 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
    • F28D9/0006—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 the plate-like or laminated conduits being enclosed within a pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
    • F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
    • F28F21/083—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys from stainless steel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/086—Heat exchange elements made from metals or metal alloys from titanium or titanium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2215/00—Fins
    • F28F2215/10—Secondary fins, e.g. projections or recesses on main fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/06—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes composite, e.g. polymers with fillers or fibres
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/02—Fastening; Joining by using bonding materials; by embedding elements in particular materials
    • F28F2275/025—Fastening; Joining by using bonding materials; by embedding elements in particular materials by using adhesives
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/04—Fastening; Joining by brazing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/06—Fastening; Joining by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/20—Fastening; Joining with threaded elements

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  • 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)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The corrugated heat transfer zone (4) of the plate type heat exchanger heating plate (1) is characterized in that the corrugations have additional local corrugations at their front and/or side surfaces where the recesses (45, 4F) are formed, and the corrugation crest lines (4L) are discontinuous; the corrugation apex line (4L) is preferably a polygonal curve or a wavy line.

Description

Heat exchange area of plate type heat exchanger heating plate
Technical Field
The invention relates to a heat exchange area structure of a heating plate of a plate type heat exchanger.
Background
The plate type heat exchanger is composed of heating plates arranged at intervals, and can be divided into a disassembled (screw lock type, gasket type) heat exchanger, a non-disassembled heat exchanger (welding type, shell plate type) and a partially disassembled heat exchanger (semi-welding gasket type) according to construction modes. The detachable plate type heat exchanger adopts a frame and screws to form a detachable heating plate sleeve, and the key point of the construction is whether the heating plate sleeve is tightly pressed or not. The heating plates with the corrugated pattern thus meet each other through the tops of the recesses, which ensures a tight fit and forms channels for the flow of the process medium therein.
The heat exchanger with the gasket has the optimal operation effect under the condition of low logarithmic temperature difference, and the heat transfer load of the system can be increased along with the increase of the flow velocity of the acting medium. Plate type heat exchangers require regular cleaning maintenance. In the case of the detachable structure, the frame must be detached and the dust on the heating plate removed.
The heating plate suit of the welded plate heat exchanger adopts a permanent welding structure. The welds may be made of copper (common practice), nickel or stainless steel to ensure corrosion resistance in corrosive working environments. In the manufacture of semi-welded plate type heat exchangers, special attention is paid to the method of joining the plates. The plates are welded in pairs and then sealed by gaskets. One of the active media flows through the channels formed by the heating plates, and the cooling liquid or the liquid to be cooled then flows between the pairs of plates. The plate package of the shell-plate heat exchanger is arranged in the shell.
In plate type heat exchangers, a plurality of hot plate packages are joined by suitable pressing and joining to form channels, and the entire heat exchange process takes place on the walls of these channels. When the equipment hot plate suit, the hot plate that every rear side hot plate was rather than the angle rotation 180 in the place ahead. Such positioning, together with screwing, welding, gluing or welding, allows the formation of independent channels for the circulation of heating or cooling media for the heat exchange process. In plate type heat exchangers, the shape of the hot plate heat transfer zone has a great influence on the heat exchanger operating parameters. In addition to the heat exchange coefficient value, another important characteristic of a heat exchanger is the pressure drop. When the pressure of the fluid is judged to be reduced, the pressure values of the fluid inlet and the fluid outlet of the exchanger are respectively measured, and the difference value between the two values is the flow pressure drop. The higher the corrugation angle of the heating plate corrugation pattern is, the higher the flow pressure drop is, and the higher the thermal efficiency is; and if the corrugation angle is lower, the flow pressure drop is lower and the heat exchange is less.
The flow passages in the plate type heat exchanger may be single pass or multiple pass. This refers to the number of times the action medium passes through the hot length of the heating plate. In a multi-pass plate type heat exchanger, the medium is recirculated within the heat exchanger and thus flows along the hot length of the heater plate multiple times.
The main advantages of the plate type heat exchanger include good heat exchange efficiency, compact design, small fluid consumption, safe and reliable operation, flexible selection of the heat exchanger according to operation parameters, high device valence ratio, and high medium turbulence in the heat exchanger.
For promoting plate type heat exchanger efficiency, optimize to the hot plate heat transfer district, including the molding modification to and heat transfer district shape optimization adjustment. The effects of these practices include achieving an optimal shape of the heat transfer zone (while maintaining a compact size), optimally increasing turbulence, reducing stratification of the active media as it flows, maintaining or reducing pressure drop while increasing thermal efficiency, and providing variable media velocity in the heat exchanger, thereby creating localized liquid turbulence with self-cleaning utility.
The heating plate of the existing plate type heat exchanger is provided with wave lines on the surface, the wave lines are formed by arms with polygonal curve angles, and the waves are parallel to each other. Such heating plates are known from e.g. patent documents p.380994, EP 1094291, EP 2394129 and WO 2007009615.
Disclosure of Invention
The invention aims to provide a surface design of a heat exchange zone in a plate type heat exchanger, thereby improving the heat efficiency, optimizing the flow of an action medium in the heat exchanger and avoiding laminar flow of the action medium in a boundary area and a distribution area.
According to the invention, the corrugated heat exchange zone of the heating plate in the plate type heat exchanger has the following characteristics: the corrugations are formed with additional local corrugations at their front and/or side surfaces forming the recesses, and the crests of the corrugations are discontinuous, in particular polygonal or wavy lines.
The additional local ripples are characterized by the following parameters:
-an axis along which the crest of the corrugation crest line lies, and an axis parallel to the crest of the corrugation crest line, forming an opening angle of 90 ° to 179 °;
-two intersections of the crest line apex with the axis along which the crest line apex lies, and a point which is furthest from the axis along which the crest line apex lies on the crest line apex, which three points form a triangle, and an acute angle of said triangle is 1 ° to 89 °;
-the number of points which are furthest from the axis along which the crest line of the corrugation lies and which lie on the crest line of the corrugation is at least two per 200mm of the length of the axis along which the crest line of the corrugation lies;
-the distance between the two points that are furthest apart and located on opposite sides of the axis along which the crest line of the corrugation lies is equal to 1 to 2000% of the base of an isosceles triangle whose two legs, on a section (1-1), constitute the two lines along which the side faces of the corrugation lie;
-an inclination angle of a corrugated side is 1 ° to 89 °;
-a fillet radius of the corrugation crest is 0.1mm to 1000 mm.
The wave crest line is preferably in the form of a wavy line, and the angle between the axis along which the wave crest line lies and a line intersecting the point which is furthest from the axis along which the wave crest line lies and which lies on the crest line is the opening angle, and the line simultaneously intersects an intersection of this line and the axis along which the wave crest line lies.
The crest line of the corrugation is preferably in the form of a polygonal curve, and the angle between the axis along which the crest line of the corrugation lies and an axis parallel to the crest line of the corrugation is the opening angle.
The standard corrugation is additionally provided with additional local corrugations and/or corrugated top lines in the shape of polygonal curves and/or wavy lines, so that local turbulence can be created, a boundary layer of fluid is broken, and the flow speed is locally improved. This phenomenon can locally enhance the heat exchange, so that the heat exchanger with the heat exchange area of this shape on the heating plate can improve the thermal efficiency by at least 10%. Heat exchangers equipped with the heating plates of the present invention are also less prone to surface contamination, which reduces cleaning frequency. The use of additional corrugations also helps to increase the rigidity of the heater plate and provides compensation for localized stresses generated during operation of the heat exchanger, and therefore is more resistant to pressure and cyclic loads, and has the effect of extending the life of the heat exchanger.
Drawings
Objects of the invention as illustrated in the drawings, fig. 1 is a front view of a heating plate of a plate type heat exchanger, showing a corrugated system and a marked area through which an operating medium flows; FIG. 2 shows a corrugated arrangement of the panel; FIGS. 3 and 4 show the corrugation arrangement of the corrugated sides of the heater plate; fig. 5 is an exemplary heat exchanger using a heating plate having a heat exchange zone shape of the present invention.
Detailed Description
The surface of the heating plate (1) is provided with a plurality of areas through which the acting medium can flow: an inlet area (2), an action medium distribution area (3) and an effective heat exchange area (4). The surface of the effective heat transfer zone (4) is corrugated (fig. 2) and is characterized in that the sides of the corrugations have additional local corrugations (4S, 4F) and the crest lines (4L) of the corrugations are polygonal curves. The additional corrugation has the following parameters: the opening angle (4a) between the axis along which the crest of the corrugation crest line (4L) lies and the axis parallel to the crest of the corrugation crest line (4L) is 150 °; two intersections of the tops of the wave crests (4L) with the axis along which the tops of the wave crests (4L) lie, and a point (4a) which is farthest from the axis along which the tops of the wave crests (4L) lie on the wave crest (4L), which three points form a triangle, and an acute angle (4 γ) of said triangle is 30 °; the number of points (4a) which are farthest from the axis along which the wave crest line (4L) is located and which are located on the wave crest line (4L) is 50 per 200mm of the length of the axis along which the wave crest line (4L) is located; the distance (4b) between two points (4a) which are farthest from each other and located on two sides different from each other along the axis along which the crest line (4L) of the corrugation is located is 3 mm; the angle of inclination (4 σ) of the corrugated sides is 60 °; the fillet radius (4d) of the corrugation crests is 5 mm.
The heating plate (1) is a part which is arranged in a heating plate sleeve (6) of the plate type heat exchanger (5) at intervals. The heat exchanger (5) can additionally have a cover plate (7) and ports (8) for mounting elements for connection to the heat exchanger (5). The components of the heat exchanger (5), in particular the heating plate (1), are made of stainless steel, but the material thereof can also be titanium, alloys thereof with various metals and/or metal alloys and/or non-metallic and/or plastic materials or composite materials. The components of the heat exchanger (5) are connected by welding, but can be welded, glued or screwed instead. The present invention has a wide range of industrial applications including energy, pharmaceutical, food, petrochemical, chemical, mining, pool equipment, HVAC, HVACR, and sewage treatment plants.

Claims (4)

1. A heat exchange zone of a plate type heat exchanger heating plate, the heat exchange zone having a plurality of corrugations, and characterized in that the corrugations have a plurality of additional local corrugations in their front and/or side surfaces where a plurality of indentations (4S, 4F) are formed, and the crest lines (4L) of the corrugations are discontinuous.
2. A heat transfer zone according to claim 1, characterized in that said additional local corrugations are characterized by the following parameters:
-an axis along which the crest of the corrugation crest line (4L) lies, and an axis parallel to the crest of the corrugation crest line (4L), between which an opening angle (4a) is formed of 90 ° to 179 °;
-two points of intersection of the crest of the corrugation crest line (4L) with the axis along which the crest of the corrugation crest line (4L) lies, and a point (4a) which is furthest from the axis along which the crest of the corrugation crest line (4L) lies on the corrugation crest line (4L), which three points form a triangle, and an acute angle (4 γ) of said triangle is 1 ° to 89 °;
-the number of points (4a) that are furthest from the axis along which the corrugation crest line (4L) lies and that are located on the corrugation crest line (4L) is at least two per 200mm of the length of the axis along which the corrugation crest line (4L) lies;
-the distance (4b) between two points (4a) which are furthest apart from each other and located on opposite sides of the axis along which the crest line (4L) of the corrugation lies is equal to 1 to 2000% of the base of an isosceles triangle, the two waists of which constitute, on a section (1-1), the two lines along which the flanks of the corrugation lie;
-an inclination angle (4 σ) of a corrugated side is 1 ° to 89 °;
-a fillet radius (4d) of the corrugation crest is 0.1mm to 1000 mm.
3. Heat transfer zone according to claim 1 or 2, characterized in that the corrugation apex line (4L) is in the form of a wavy line (4F), and the angle between the axis along which the corrugation apex line (4L) lies and a line which intersects the point (4a) which is furthest from the axis along which the corrugation apex line (4L) lies on the apex line (4L), i.e. the opening angle (4 α), and which line simultaneously intersects with an intersection of this line with the axis along which the corrugation apex line (4L) lies.
4. A heat transfer zone according to claim 1 or 2, wherein said corrugation crest line (4L) is in the form of a polygonal curve (4S), and the angle between the axis along which the corrugation crest line (4L) lies and an axis parallel to the corrugation crest line (4L) is said opening angle (4 α).
CN201980087134.2A 2019-01-04 2019-06-28 Heat exchange area of plate type heat exchanger heating plate Pending CN113272613A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PL127945U PL73432Y1 (en) 2019-01-04 2019-01-04 Heat exchange surface of a heating plate of a plate heat exchanger
PLW.127945 2019-01-04
PCT/PL2019/000048 WO2020141982A1 (en) 2019-01-04 2019-06-28 Heat exchanger plate for a plate heat exchanger with a particular heat exchange area

Publications (1)

Publication Number Publication Date
CN113272613A true CN113272613A (en) 2021-08-17

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CN201980087134.2A Pending CN113272613A (en) 2019-01-04 2019-06-28 Heat exchange area of plate type heat exchanger heating plate

Country Status (5)

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US (1) US20210318079A1 (en)
EP (1) EP3906384A1 (en)
CN (1) CN113272613A (en)
PL (1) PL73432Y1 (en)
WO (1) WO2020141982A1 (en)

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