CN103424014A - Plate heat exchanger - Google Patents
Plate heat exchanger Download PDFInfo
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- CN103424014A CN103424014A CN2012101506100A CN201210150610A CN103424014A CN 103424014 A CN103424014 A CN 103424014A CN 2012101506100 A CN2012101506100 A CN 2012101506100A CN 201210150610 A CN201210150610 A CN 201210150610A CN 103424014 A CN103424014 A CN 103424014A
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Abstract
The invention discloses a plate heat exchanger. A first heat exchange surface (21) of each plate of the plate heat exchanger is provided with distributors, namely dot projections (31) which form dot pits (32) in a second heat exchange surface (22) on the other side of the plate. Each second heat exchange surface (22) further comprises a flat plate surface (221) around the dot pits (32). The dot projections (31) on the first heat exchange surface (21) of the n-th plate and the dot pits (32) in the second heat exchange surface (22) of the (n+1)-th plate, so that the top ends of the dot projections (31) on the first heat exchange surface (21) of the n-th plate can be welded on the corresponding flat plate surface (221). The structural design of the plate heat exchanger allows heat exchange media to be fully mixed so that heat exchange efficiency is improved, and also guarantees quality of welding of the adjacent plates.
Description
Technical field
The present invention relates to technical field of heat exchangers, particularly a kind of plate type heat exchanger.
Background technology
Plate type heat exchanger is a kind of heat exchanger commonly used, can be used for water-hydrothermal exchange, water-cold-producing medium heat exchange.Double pipe heat exchanger, the shell and tube exchanger identical with function are compared, and plate type heat exchanger has higher heat exchange efficiency, so heat exchanger is compacter, and weight is also lighter, are widely used in a plurality of industries such as refrigeration air-conditioner, chemical industry and water treatment.The basic principle of plate type heat exchanger is to form the runner of space between the polylith heat exchange plate, and two kinds of heat exchange mediums (normally liquid or liquid gas two phases) carry out heat exchange by heat exchange plate in alternate runner.The common surface of heat exchange plate is provided with the vent diverter that a plurality of tongues form, and heat transferring medium is flowed by tongue.Adjacent plate interval is very little, so medium flow velocity between plate is higher, and higher heat exchange efficiency can be provided.
Particularly, please refer to Fig. 1, the structural representation that Fig. 1 is a kind of plate of plate type heat exchanger in prior art.
As shown in Figure 1, this plate comprises two heat-transfer surfaces, be respectively the first heat-transfer surface 2 ' 1 and the second heat-transfer surface, definition one side (that is the one side that can see) toward the outer side is the first heat-transfer surface 2 ' 1, towards inboard one side (that is the one side that can not see), is the second heat-transfer surface; As shown in Figure 1, on four angles of plate, be provided with successively hole, four angles, in this hole, four angles, on the first heat-transfer surface, two, the left side is isolation hole, angle 1 ' 1, and in hole, two angles, the right, one is that 1 ' 2, one, inlet angle hole is angle of outlet hole 1 ' 3; The sealing parts can be provided with seal member around these two isolation holes, angle 1 ' 1, so that can form sealing with adjacent plate.In addition, as shown in Figure 1, on the first heat-transfer surface, also be provided with the vent diverter that V-type convexes to form, obviously, this V-type projection on the second heat-transfer surface, form V-type groove 3 '.
Plate type heat exchanger comprises a plurality of above-mentioned plates, the plurality of plate spread configuration, and adjacent plate oppositely arranges, that is make the first heat-transfer surface 2 ' 1 on the n plate two isolation holes, angle 1 ' 1 around seal member respectively with the n+1 plate on the second heat-transfer surface on inlet angle hole 1 ' 2 and the peripheral part in angle of outlet hole 1 ' 3 be tightly connected, there is gap between isolation hole, angle 1 ' 1 on the inlet angle hole 1 ' 2 of the first heat-transfer surface 2 ' 1 and the second heat-transfer surface on angle of outlet hole 1 ' 3 and n+1 plate on the n plate simultaneously, so that refrigerant can be entered by the inlet angle hole 1 ' 2 on the first heat-transfer surface 2 ' 1, finally enter in the angle of outlet hole 1 ' 3 on the first heat-transfer surface 2 ' 1.That is as shown in Figure 1, refrigerant is entered by the inlet angle hole 1 ' 2 of upper end, along the length direction of plate to dirty, then flowed out by the angle of outlet hole 1 ' 3 of lower end.
Yet in above-mentioned prior art, the plate of plate type heat exchanger has following defect:
As shown in Figure 1, the vent diverter of above-mentioned plate type heat exchanger of the prior art adopts V projection (at opposite side, forming the V-type groove), although this kind of structural design can have certain guide effect by the heat exchanging medium, can not make heat transferring medium fully mix, thereby heat exchange efficiency is lower.
Summary of the invention
The technical problem to be solved in the present invention is for plate type heat exchanger is provided, and the structural design of this kind of plate type heat exchanger can make heat transferring medium fully mix on the one hand, thereby improves heat exchange efficiency; Can guarantee the welding quality between adjacent plate on the other hand.
For solving the problems of the technologies described above, the invention provides a kind of plate type heat exchanger, comprise the plate of a plurality of spread configurations, and adjacent plate oppositely arranges; Be provided with successively hole, four angles on four angles of any plate, in hole, above-mentioned four angles, wherein the two is isolation hole, angle, be formed with the seal member with the adjacent plate sealing around these two isolation holes, angle on the first heat-transfer surface of plate, in addition in the two one be the inlet angle hole, another angle of outlet hole; Also be provided with a plurality of vent diverters on described the first heat-transfer surface;
In each plate, on the n plate two of the first heat-transfer surface the isolation holes, angle around seal member respectively with the n+1 plate on the second heat-transfer surface on the inlet angle hole and the peripheral part in angle of outlet hole be tightly connected, there is gap between isolation hole, angle on the inlet angle hole of the first heat-transfer surface and the second heat-transfer surface on angle of outlet hole and n+1 plate on the n plate simultaneously, so that refrigerant can be entered by the inlet angle hole on the first heat-transfer surface, through described vent diverter shunting, finally enter in the angle of outlet hole on the first heat-transfer surface; Wherein, n >=1, and n is integer; At described the above vent diverter of the first heat-transfer surface, be the point-like projection, this point-like projection forms the point-like groove simultaneously on the second heat-transfer surface of plate opposite side, and described the second heat-transfer surface also comprises the platen surface be positioned at around the point-like groove;
The point-like groove setting of staggering on the second heat-transfer surface on point-like on the n plate on the first heat-transfer surface projection and n+1 plate, so that the top ends of the point-like projection on the n plate on the first heat-transfer surface is welded on described platen surface.
Preferably, the span of the D outer diameter of described point-like projection is 1mm ~ 15mm, and the span of the height Dp of described point-like projection is 0.5mm ~ 5mm, and the benchmark of starting at of the height Dp of point-like projection is the first heat-transfer surface.
Preferably, the top ends of described point-like projection is provided with the planar portions of being convenient to welding.
Preferably, being shaped as of described point-like projection is cylindrical, so that its top ends forms described planar portions.
Preferably, described point-like projection orthogonal array distribution on the first heat-transfer surface.
Preferably, meet following relational expression at above-mentioned rectangular array:
Pv=1.5D ~ 5D, Ph=1.2D ~ 5D; Wherein, the external diameter that D is the point-like projection, the spacing that Pv is each row in rectangular array, the spacing that Ph is each row.
Preferably, described point-like projection triangularity array distribution on the first heat-transfer surface.
Preferably, described point-like projection circularizes array distribution on the first heat-transfer surface,
Described annular array comprises the first annular array and the second annular array;
On the first heat-transfer surface, take the center of circle in this inlet angle hole near the point-like projection in inlet angle hole and form the first annular array as benchmark;
On the first heat-transfer surface, take the center of circle in this angle of outlet hole near the point-like projection in angle of outlet hole and form the second annular array as benchmark.
Preferably, on the first heat-transfer surface, the dense degree of the point-like projection in close inlet angle hole is greater than the dense degree near the point-like projection in angle of outlet hole.
Preferably, hole, two described isolation angles all is positioned at the first end on the length direction of described plate, and accordingly, described inlet angle hole and described angle of outlet hole all are positioned at the second end on the length direction of described plate;
Also be provided with the isolation projection that it is divided into to the first circulating area and the second circulating area on described the first heat-transfer surface, described inlet angle hole is positioned at described the first circulating area, and described angle of outlet hole is positioned at described the second circulating area; Described isolation projection is extended to described first end by described the second end, and, at this second end, described the first heat-transfer surface is provided with the communicating passage that is communicated with described the first circulating area and described the second circulating area.
In addition, the present invention also provides a kind of plate type heat exchanger, comprises the plate of a plurality of spread configurations, and adjacent plate oppositely arranges; Be provided with successively hole, four angles on four angles of any plate, in hole, above-mentioned four angles, wherein the two is isolation hole, angle, be formed with the seal member with the adjacent plate sealing around these two isolation holes, angle on the first heat-transfer surface of plate, in addition in the two one be the inlet angle hole, another angle of outlet hole; Also be provided with a plurality of vent diverters on described the first heat-transfer surface;
In each plate, on the n plate two of the first heat-transfer surface the isolation holes, angle around seal member respectively with the n+1 plate on the second heat-transfer surface on the inlet angle hole and the peripheral part in angle of outlet hole be tightly connected, there is gap between isolation hole, angle on the inlet angle hole of the first heat-transfer surface and the second heat-transfer surface on angle of outlet hole and n+1 plate on the n plate simultaneously, so that refrigerant can be entered by the inlet angle hole on the first heat-transfer surface, through described vent diverter shunting, finally enter in the angle of outlet hole on the first heat-transfer surface; Wherein, n >=1, and n is integer; It is characterized in that,
At described the above vent diverter of the first heat-transfer surface, be the point-like projection, this point-like projection forms the point-like groove simultaneously on the second heat-transfer surface of plate opposite side;
The openend of point-like groove welding on the top ends of the point-like projection on the n plate on the first heat-transfer surface and the second heat-transfer surface on the n+1 plate.
On existing basic basis, plate type heat exchanger provided by the present invention, its the above vent diverter of the first heat-transfer surface is the point-like projection, this point-like projection forms the point-like groove simultaneously on the second heat-transfer surface of plate opposite side, and described the second heat-transfer surface also comprises the platen surface be positioned at around the point-like groove; In this kind of structural design, each groove of no longer just flowing through in order that flows that is arranged so that heat exchanging fluid of point-like projection or point-like groove, but freely distribute and mix according to path and resistance, so the heat exchange of each point can be more balanced.In addition, the disturbance of heat exchanging fluid has been strengthened in the existence of point-like projection or point-like groove, and the separation in boundary layer can occur in through point-like projection or point-like groove, to strengthen heat exchange.
In addition, the point-like groove setting of staggering on the second heat-transfer surface on point-like on the n plate on the first heat-transfer surface projection and n+1 plate, so that the top ends of the point-like projection on the n plate on the first heat-transfer surface is welded on described platen surface.This kind of welding that Welding Structure is point and face, can avoid the generation of rosin joint, thereby improve welding quality.
In sum, plate type heat exchanger provided by the present invention can make heat transferring medium fully mix on the one hand, thereby improves heat exchange efficiency; Can guarantee the welding quality between adjacent plate on the other hand.
The accompanying drawing explanation
The structural representation that Fig. 1 is the plate of plate type heat exchanger in prior art;
The structural representation that Fig. 2 is the plate of plate type heat exchanger in the first embodiment of the present invention;
Fig. 3 be in Fig. 2 AA to cutaway view;
Fig. 4 forms the structural representation of plate type heat exchanger after the plate in a plurality of Fig. 2 oppositely superposes;
In Fig. 5 Fig. 4 BB to cutaway view;
Fig. 6 is for having made the structural representation after a kind of change to the plate type heat exchanger in Fig. 4;
Fig. 7 be in Fig. 6 BB to cutaway view;
The structural representation that Fig. 8 is the plate of plate type heat exchanger in the second embodiment of the present invention;
The plate that Fig. 9 is the plate type heat exchanger in Fig. 8 is made the structural representation after further improvement;
The structural representation that Figure 10 is the plate of plate type heat exchanger in the third embodiment of the present invention;
The structural representation that Figure 11 is the plate of plate type heat exchanger in the 4th kind of embodiment of the present invention;
Figure 12 be in Fig. 1 Figure 11 AA to cutaway view;
Figure 13 forms the structural representation of plate type heat exchanger after the plate in a plurality of Fig. 1 Figure 11 oppositely superposes;
In Figure 14 Figure 13 BB to cutaway view;
The structural representation that Figure 15 is the plate of plate type heat exchanger in the 5th kind of embodiment of the present invention;
Figure 16 forms the structural representation of plate type heat exchanger after the plate in a plurality of Figure 15 oppositely superposes.
Wherein, in Fig. 1, the corresponding relation between Reference numeral and component names is:
1 ' 1 isolation hole, angle; 1 ' 2 inlet angle hole; 1 ' 3 angle of outlet hole;
2 ' 1 first heat-transfer surfaces;
3 ' V-type groove.
Corresponding relation in Fig. 2 to Figure 16 between Reference numeral and component names is:
11 isolation holes, angle; 12 inlet angle holes; 13 angle of outlet holes;
21 first heat-transfer surfaces; 211 first circulating areas; 212 second circulating areas; 213 isolation projections; 214 communicating passage; 22 second heat-transfer surfaces; 221 platen surface;
31 point-like projections; 311 planar portions; 32 point-like grooves;
41 first annular arrays; 42 second annular arrays.
The specific embodiment
Core of the present invention is for plate type heat exchanger is provided, and the structural design of this kind of plate type heat exchanger can make heat transferring medium fully mix on the one hand, thereby improves heat exchange efficiency; Can guarantee the welding quality between adjacent plate on the other hand.
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.In the following description, length direction is defined as: every width figure from the top to the bottom or direction from bottom to top are length direction; Width is defined as: every width figure from left to right or dextrosinistral direction be width.The raised or sunken parts in heat exchange zone centered by by-passing parts in following statement, strip projected parts or groove around the hole, angle do not belong to by-passing parts of the present invention.
Please refer to Fig. 2 to Fig. 7, the structural representation that Fig. 2 is the plate of plate type heat exchanger in the first embodiment of the present invention; Fig. 3 be in Fig. 2 AA to cutaway view; Fig. 4 forms the structural representation of plate type heat exchanger after the plate in a plurality of Fig. 2 oppositely superposes; In Fig. 5 Fig. 4 BB to cutaway view; Fig. 6 is for having made the structural representation after a kind of change to the plate type heat exchanger in Fig. 4; Fig. 7 be in Fig. 6 BB to cutaway view.
In the basic technology scheme, plate type heat exchanger provided by the present invention, as shown in Figure 2 and Figure 4, comprise the plate of a plurality of spread configurations, and adjacent plate oppositely arranges; Be provided with successively hole, four angles on four angles of any plate, in hole, above-mentioned four angles, wherein the two is isolation hole, angle 11, be formed with the seal member with the adjacent plate sealing around these two isolation holes, angle 11 on the first heat-transfer surface 21 of plate, in addition in the two one be inlet angle hole 12, another angle of outlet hole 13; Also be provided with a plurality of vent diverters on the first heat-transfer surface 21;
As shown in Figure 4, in this plate type heat exchanger, the implication that adjacent plate oppositely arranges is: that is oppositely be superimposed at adjacent plate; Look for two plates in the Fig. 2 placed with same position, then at a plate that will be wherein along clockwise rotating 180 degree, again the plate after this rotation is superimposed on another plate, has just obtained the plate type heat exchanger in Fig. 4, thereby realize following technical purpose:
On the n plate two of the first heat-transfer surface 21 isolation holes, angle 11 around seal member respectively with the n+1 plate on the second heat-transfer surface 22 on inlet angle hole 12 and the peripheral part in angle of outlet hole 13 be tightly connected, there is gap between isolation hole, angle 11 on the inlet angle hole 12 of the first heat-transfer surface 21 and the second heat-transfer surface 22 on angle of outlet hole 13 and n+1 plate on the n plate simultaneously, so that refrigerant can be entered by the inlet angle hole 12 on the first heat-transfer surface 21, through the vent diverter shunting, finally enter in the angle of outlet hole 13 on the first heat-transfer surface 21; Wherein, n >=1, and n is integer.
On the basis of said structure, as shown in Fig. 2 to Fig. 5, on the first heat-transfer surface 21, vent diverter is point-like projection 31, and this point-like projection 31 forms point-like groove 32, the second heat-transfer surfaces 22 simultaneously and also comprises the platen surface 221 be positioned at around point-like groove 32 on the second heat-transfer surface 22 of plate opposite side; In this kind of structural design, each groove of no longer just flowing through in order that flows that is arranged so that heat exchanging fluid of point-like projection 31 or point-like groove 32, but freely distribute and mix according to path and resistance, so the heat exchange of each point can be more balanced.In addition, the disturbance of heat exchanging fluid has been strengthened in the existence of point-like projection 31 or point-like groove 32, and the separation in boundary layer can occur in through point-like projection 31 or point-like groove 32, to strengthen heat exchange.
Point-like groove 32 setting of staggering on the second heat-transfer surface 22 on point-like on the n plate on the first heat-transfer surface 21 projection 31 and n+1 plate, so that on the n plate, the top ends of the point-like projection 31 on the first heat-transfer surface 21 is welded on platen surface 221.This kind of welding that Welding Structure is point and face, can avoid the generation of rosin joint, thereby improve welding quality.
Certainly, can also adopt following welding manner between two plates:
Particularly, as shown in Figure 6 and Figure 7, the openend of point-like groove 32 welding on the top ends of the point-like projection 31 on the n plate on the first heat-transfer surface 21 and the second heat-transfer surface 22 on the n+1 plate.Obviously, this kind of welding manner also can make between adjacent plate and weld together.
The mapping shape of the compacting shape of point-like projection 31 or point-like groove 32 can be circular, can be also triangle, the shape such as trapezoidal, oval substantially.For making flowing of coldplate more even, as shown in Figure 3, the D outer diameter of point-like projection 31 need be at 1mm ~ 15mm, and the diameter of each row (or row) also can be different.
The mapping shape of the compacting shape of point-like projection 31 or point-like groove 32 can be circular, can be also triangle, the shape such as trapezoidal, oval substantially.For making flowing of coldplate more even, the D outer diameter of point-like projection 31 need be at 1mm ~ 15mm, and the external diameter of each row (or row) also can be different.In addition, the height of point-like projection 31 is higher, and the spacing between the two boards sheet increases, and the flow velocity of heat exchanging fluid reduces, and exchange capability of heat reduces; And the spacing of plate reduces, the flow velocity of heat exchanging fluid increases, and fluid flow resistance increases.Therefore equally have a preferred design, make the flow resistance of plate at zone of reasonableness, the height Dp of point-like projection 31 is at 0.5mm ~ 5mm, and as shown in Figure 3, and the benchmark of starting at of the height Dp of point-like projection 31 is the first heat-transfer surface 21.
On the basis of technique scheme, can make further improvement, thereby obtain the first embodiment of the present invention.Particularly, as shown in Figure 2, point-like projection 31 is orthogonal array distribution on the first heat-transfer surface 21.Meet following relational expression at above-mentioned rectangular array:
Pv=1.5D ~ 5D, Ph=1.2D ~ 5D; Wherein, the external diameter that D is point-like projection 31, the spacing that Pv is each row in rectangular array, the spacing that Ph is each row.
In the present invention, when the spacing of point-like projection 31 or point-like groove 32 reduces, flow resistance can increase, and heat exchange efficiency improves, but spacing is reduced to a certain degree, flow resistance acutely increases, heat exchange efficiency improves no longer obvious, therefore has the optimal design point of a heat exchange and resistance balance, particularly, while meeting the above-mentioned relation formula, can obtain best distribution mixed effect.
On the basis of technique scheme, can also make further improvement, thereby obtain the second embodiment of the present invention, particularly, please refer to Fig. 8 and Fig. 9, the structural representation that Fig. 8 is the plate of plate type heat exchanger in the second embodiment of the present invention; The plate that Fig. 9 is the plate type heat exchanger in Fig. 8 is made the structural representation after further improvement.
In this kind of embodiment, as shown in Figure 8, point-like projection 31 is the triangularity array distribution on the first heat-transfer surface 21.This triangular array is made explanations, and as shown in Figure 8, the implication of this triangular array is: on width, two adjacent row's point-like projections 31 misplace, and as shown in Figure 8, be that circulation misplaces to from left to right, the distance of this dislocation is equal to or substantially equal to half of horizontal spacing Pv.
Particularly, in technique scheme, as shown in Figure 8, on the first heat-transfer surface 21, the dense degree of the point-like projection 31 in close inlet angle hole 12 is greater than the dense degree near the point-like projection 31 in angle of outlet hole 13.Stronger turbulent flow can be so that occur at the initial segment of heat exchange in this set, distributes and locally relatively uniformly keeps general disturbance flowing to middle part, can be so that heat exchange and resistance obtain better balance.
On the basis of technique scheme, can also make further improvement, thereby obtain the third embodiment of the present invention, particularly, please refer to Figure 10, the structural representation that Figure 10 is the plate of plate type heat exchanger in the third embodiment of the present invention.
In this kind of embodiment, as shown in figure 10, point-like projection 31 circularizes array distribution on the first heat-transfer surface 21.And particularly, annular array comprises the first annular array 41 and the second annular array 42; On the first heat-transfer surface 21, take this 12De center of circle, inlet angle hole near the point-like projection 31 in inlet angle hole 12 and form the first annular array 41 as benchmark; On the first heat-transfer surface 21, take this 13De center of circle, angle of outlet hole near the point-like projection 31 in angle of outlet hole 13 and form the second annular array 42 as benchmark.Because these two annular arrays are respectively to using inlet angle hole 12 and the 13De center of circle, angle of outlet hole as benchmark, thereby can be so that heat exchanging fluid is uniformly distributed round inlet angle hole 12 and angle of outlet hole 13, thereby can make heat exchange more even.
On the basis of above-mentioned any technical scheme, can make further improvement, thereby obtain the 4th kind of embodiment of the present invention; Particularly, please refer to Fig. 1 Figure 11 to Figure 14, the structural representation that Fig. 1 Figure 11 is the plate of plate type heat exchanger in the 4th kind of embodiment of the present invention; Figure 12 be in Fig. 1 Figure 11 AA to cutaway view; Figure 13 forms the structural representation of plate type heat exchanger after the plate in a plurality of Fig. 1 Figure 11 oppositely superposes; In Figure 14 Figure 13 BB to cutaway view.
Particularly, in the 4th kind of embodiment, as shown in figure 12, the top ends of point-like projection 31 is provided with the planar portions 311 of being convenient to welding.In this kind of structural design, during welding, be a face, rather than a point, thereby can improve bonding area, thus welding quality guaranteed.
Further, as shown in Fig. 1 Figure 11 and Figure 13, being shaped as of point-like projection 31 is cylindrical, so that its top ends forms planar portions 311, obvious columniform point-like projection 31 can make its top ends form planar portions 311 easily.
On the basis of above-mentioned any technical scheme, can make further improvement, thereby obtain the 5th kind of embodiment of the present invention; Particularly, please refer to Figure 15 and Figure 16, the structural representation that Figure 15 is the plate of plate type heat exchanger in the 5th kind of embodiment of the present invention; Figure 16 forms the structural representation of plate type heat exchanger after the plate in a plurality of Figure 15 oppositely superposes.
In the 5th kind of embodiment, as shown in Figure 15 and Figure 16, two isolation holes, angle 11 all are positioned at the first end on the length direction of plate, and accordingly, inlet angle hole 12 and angle of outlet hole 13 all are positioned at the second end on the length direction of plate; Also be provided with the isolation projection 213 that it is divided into to the first circulating area 211 and the second circulating area 212 on the first heat-transfer surface 21, inlet angle hole 12 is positioned at the first circulating area 211, and angle of outlet hole 13 is positioned at the second circulating area 212; Isolation projection 213 is extended to first end by the second end, and, at this first end, the first heat-transfer surface 21 is provided with the communicating passage 214 that is communicated with the first circulating area 211 and the second circulating area 212.
During work, the refrigerant fluid is entered by inlet angle hole 12, at the first circulating area 211, the length direction along plate flowed refrigerant before this, until the first end of plate, enter the second circulating area 212 through circulation passage, and then flow along the plate length direction to the second end, finally enter in inlet angle hole 12.Hence one can see that, it is U-shaped that the runner of refrigerant becomes substantially, relative prior art, flow path length has approximately increased by one times, and flow path width has reduced half, thereby the structural design of this plate can extend the flow path length of refrigerant under the prerequisite constant at the plate overall dimensions, and shortened the flow path width of refrigerant, thereby can improve the flow velocity of refrigerant, and then improve heat exchange efficiency.
Above plate type heat exchanger provided by the present invention is described in detail.Applied specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of the claims in the present invention.
Claims (11)
1. a plate type heat exchanger, comprise the plate of a plurality of spread configurations, and adjacent plate oppositely arranges; Be provided with successively hole, four angles on four angles of any plate, in hole, above-mentioned four angles, wherein the two is isolation hole, angle (11), be formed with the seal member with the adjacent plate sealing around these two isolation holes, angle (11) on first heat-transfer surface (21) of plate, in addition in the two one be inlet angle hole (12), another angle of outlet hole (13); Also be provided with a plurality of vent diverters on described the first heat-transfer surface (21);
In each plate, on the n plate two of the first heat-transfer surface (21) isolation holes, angle (11) around seal member respectively with the n+1 plate on the second heat-transfer surface (22) on inlet angle hole (12) and the peripheral part of angle of outlet hole (13) be tightly connected, there is gap between the inlet angle hole (12) of the first heat-transfer surface (21) and the upper isolation hole, angle of the second heat-transfer surface (22) on angle of outlet hole (13) and n+1 plate (11) on the n plate simultaneously, so that refrigerant can be entered by the inlet angle hole (12) on the first heat-transfer surface (21), through described vent diverter shunting, finally enter in the angle of outlet hole (13) on the first heat-transfer surface (21), wherein, n >=1, and n is integer, it is characterized in that,
At the above vent diverter of described the first heat-transfer surface (21), it is point-like projection (31), this point-like projection (31) is simultaneously at the upper point-like groove (32) that forms of second heat-transfer surface (22) of plate opposite side, and described the second heat-transfer surface (22) also comprises and is positioned at point-like groove (32) platen surface (221) on every side;
Settings of staggering of point-like on the n plate on the first heat-transfer surface (21) projection (31) and the upper point-like groove (32) of the second heat-transfer surface (22) on the n+1 plate, so that on the n plate, the top ends of the point-like on the first heat-transfer surface (21) protruding (31) is welded on described platen surface (221).
2. plate type heat exchanger as claimed in claim 1, it is characterized in that, the span of the D outer diameter of described point-like projection (31) is 1mm ~ 15mm, the span of the height Dp of described point-like projection (31) is 0.5mm ~ 5mm, and the benchmark of starting at of the height Dp of point-like projection (31) is the first heat-transfer surface (21).
3. plate type heat exchanger as described as claim 1 to 2 any one, is characterized in that, the top ends of described point-like projection (31) is provided with the planar portions (311) of being convenient to welding.
4. plate type heat exchanger as claimed in claim 3, is characterized in that, being shaped as of described point-like projection (31) is cylindrical, so that its top ends forms described planar portions (311).
5. plate type heat exchanger as described as claim 1 to 4 any one, is characterized in that, described point-like projection (31) is in the upper orthogonal array distribution of the first heat-transfer surface (21).
6. plate type heat exchanger as claimed in claim 5, is characterized in that, at above-mentioned rectangular array, meets following relational expression:
Pv=1.5D ~ 5D, Ph=1.2D ~ 5D; Wherein, the external diameter that D is the point-like projection, the spacing that Pv is each row in rectangular array, the spacing that Ph is each row.
7. plate type heat exchanger as described as claim 1 to 2 any one, is characterized in that, described point-like projection (31) is in the upper triangularity array distribution of the first heat-transfer surface (21).
8. plate type heat exchanger as described as claim 1 to 2 any one, is characterized in that, described point-like projection (31) circularizes array distribution on the first heat-transfer surface (21),
Described annular array comprises the first annular array (41) and the second annular array (42);
Upper at the first heat-transfer surface (21), take the center of circle in this inlet angle hole (12) near the point-like projection (31) in inlet angle hole (12) and form the first annular array (41) as benchmark;
Upper at the first heat-transfer surface (21), take the center of circle in this angle of outlet hole (13) near the point-like projection (31) in angle of outlet hole (13) and form the second annular array (42) as benchmark.
9. plate type heat exchanger as described as claim 1 to 2 any one, it is characterized in that, upper at the first heat-transfer surface (21), the dense degree of the point-like projection (31) in close inlet angle hole (12) is greater than the dense degree near the point-like projection (31) in angle of outlet hole (13).
10. plate type heat exchanger as described as claim 1 to 2 any one, is characterized in that,
Hole, two described isolation angles (11) all is positioned at the first end on the length direction of described plate, and accordingly, described inlet angle hole (12) and described angle of outlet hole (13) all are positioned at the second end on the length direction of described plate;
Also be provided with the isolation projection (213) that it is divided into to the first circulating area (211) and the second circulating area (212) on described the first heat-transfer surface (21), described inlet angle hole (12) is positioned at described the first circulating area (211), and described angle of outlet hole (13) is positioned at described the second circulating area (212); Described isolation projection (213) is extended to described first end by described the second end, and, at this first end, described the first heat-transfer surface (21) is provided with the communicating passage (214) that is communicated with described the first circulating area (211) and described the second circulating area (212).
11. a plate type heat exchanger, comprise the plate of a plurality of spread configurations, and adjacent plate oppositely arranges; Be provided with successively hole, four angles on four angles of any plate, in hole, above-mentioned four angles, wherein the two is isolation hole, angle (11), be formed with the seal member with the adjacent plate sealing around these two isolation holes, angle (11) on first heat-transfer surface (21) of plate, in addition in the two one be inlet angle hole (12), another angle of outlet hole (13); Also be provided with a plurality of vent diverters on described the first heat-transfer surface (21);
In each plate, on the n plate two of the first heat-transfer surface (21) isolation holes, angle (11) around seal member respectively with the n+1 plate on the second heat-transfer surface (22) on inlet angle hole (12) and the peripheral part of angle of outlet hole (13) be tightly connected, there is gap between the inlet angle hole (12) of the first heat-transfer surface (21) and the upper isolation hole, angle of the second heat-transfer surface (22) on angle of outlet hole (13) and n+1 plate (11) on the n plate simultaneously, so that refrigerant can be entered by the inlet angle hole (12) on the first heat-transfer surface (21), through described vent diverter shunting, finally enter in the angle of outlet hole (13) on the first heat-transfer surface (21), wherein, n >=1, and n is integer, it is characterized in that,
At the above vent diverter of described the first heat-transfer surface (21), be point-like projection (31), this point-like projection (31) is simultaneously at the upper point-like groove (22) that forms of second heat-transfer surface (22) of plate opposite side;
The openend welding of the upper point-like groove (32) of the top ends of the point-like projection on the n plate on the first heat-transfer surface (21) and the second heat-transfer surface (22) on the n+1 plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101506100A CN103424014A (en) | 2012-05-15 | 2012-05-15 | Plate heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101506100A CN103424014A (en) | 2012-05-15 | 2012-05-15 | Plate heat exchanger |
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| CN103424014A true CN103424014A (en) | 2013-12-04 |
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| CN2012101506100A Pending CN103424014A (en) | 2012-05-15 | 2012-05-15 | Plate heat exchanger |
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| CN105352348A (en) * | 2015-12-20 | 2016-02-24 | 黑龙江国德节能服务有限公司 | Plate heat exchanger and heat exchange method |
| WO2020134491A1 (en) * | 2018-12-26 | 2020-07-02 | 浙江盾安人工环境股份有限公司 | Flat tube and heat exchanger |
| WO2022206792A1 (en) * | 2021-03-30 | 2022-10-06 | 浙江三花汽车零部件有限公司 | Heat exchanger |
| CN115183611A (en) * | 2022-09-08 | 2022-10-14 | 中国核动力研究设计院 | Heat exchange component |
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