CN103090716B - For the fluid distributor of plate type heat exchanger - Google Patents
For the fluid distributor of plate type heat exchanger Download PDFInfo
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- CN103090716B CN103090716B CN201110338168.XA CN201110338168A CN103090716B CN 103090716 B CN103090716 B CN 103090716B CN 201110338168 A CN201110338168 A CN 201110338168A CN 103090716 B CN103090716 B CN 103090716B
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Abstract
The present invention discloses a kind of fluid distributor for plate type heat exchanger, runner between plate is formed between the plate of plate type heat exchanger, flow passage between fluid distributor and described plate, the sealing device that fluid distributor has at least two pipelines be set up in parallel and is connected with the same end part seal of each pipeline; Between plate runner all with independent pipeline communication, and between adjacent plate runner respectively from the different pipeline communications of fluid distributor; Sealing device has seal cover, and each pipeline all inserts in seal cover, and seal cover has the interface be connected separately with each pipeline respectively, so that each pipeline is communicated with corresponding outer fluid line.The use of this fluid distributor can reduce the number of through-holes on plate-type heat exchanger slab, and then improves the utilization rate of fluid heat transfer efficiency and plate, and the region that fluid can flow expands, and the distribution of fluid between plate is more even; In addition, the plate type heat exchanger of this structure be easy to adjust pressure drop, the fluid allocation situation improved under phase variable working condition.
Description
Technical field
The present invention relates to technical field of heat exchange, particularly a kind of fluid distributor for plate type heat exchanger.
Background technology
Plate type heat exchanger has compact, efficient feature, is generally used for the heat exchange between two kinds of fluids, and such as liquid-liquid, liquid-gas heat exchange pattern, also may be used for the operating mode having fluid phase change, as being used as condenser, evaporimeter.
Please refer to Fig. 1, Fig. 1 is a kind of structural representation of plate of typical plate type heat exchanger.
Plate type heat exchanger is generally be fixed together by certain mode by the plate 1 of some compactings, as soldering, framework are fixed, allow cold and hot two kinds of fluids between plate alternately through, realize the turnover of heat, the fluid namely flowing in plate 1 both sides is respectively cold fluid and hot fluid.Plate 1 in Fig. 1 is applicable to two fluid plate type heat exchangers, a plate 1 needs arrange four through holes, is usually arranged in four corners of plate 1, is also called corner apertures.When some plates 1 are combined, four corner apertures on each plate 1 just form the passage of four confessions, two kinds of fluid turnover of plate type heat exchanger, realize two fluid turnover plate type heat exchangers.Plate 1 is provided with runner between plate, when fluid flows to plate 1 by passage, can improves along flow passage between plate the uniformity that fluid flows between plate 1.
In order to realize two kinds of fluids between plate alternately through, wherein the surrounding of two corner apertures is provided with back-up ring (not shown), the second corner apertures 12 that plate 1 shown in Fig. 1 is diagonally arranged and delthyrium 13 place can arrange back-up ring, a kind of fluid is when the first corner apertures 11 enters, delthyrium 13 cannot be flowed to, only flow to the 4th corner apertures 14, one other fluid directly flows to another adjacent with it plate 1 from the second corner apertures 12, another plate 1 can adopt contrary back-up ring arrangement, then achieve two kinds of fluids alternately through each plate 1, to make the fluid that flow passage between adjacent panels is different, realize heat exchange.The mode that in Fig. 1, fluid flows between plate is that also can arrange back-up ring in the two corner apertures places of the same side, fluid-flow mode is monolateral stream to angular flux.
As shown in the above, there is following technical problem in technique scheme:
First, as seen from Figure 1, distribute between plate 1 to realize two kinds of fluids and do not interfere with each other, plate 1 need arrange at least four corner apertures to form fluid passage (a kind of fluid need arrange two corner apertures), correspondingly, there is monolateral stream or the mode to angular flux, but for these two kinds of types of flow, plate 1 fluid all cannot plate 1 region of uniform distribution near two corner apertures arranging back-up ring, this region can not be used effectively, still there is heat exchange uneven, the problem that heat exchange efficiency is low, when unnecessary two kinds of heat exchanging fluid kind, corner apertures number is more, the problems referred to above are more remarkable, and, often kind of fluid need arrange two corner apertures, and at least four corner apertures occupy the larger area of plate 1, correspondingly reduces the overall utilization rate of plate 1, meanwhile, four corner apertures are arranged in plate 1 four corners and also limit the design of plate type heat exchanger, shape and related application.
The second, the passage be made up of corner apertures is difficult to the patency ensureing circulation, pressure drop when fluid flows in this passage is comparatively large, accounts for a part for plate type heat exchanger pressure drop, due to the restriction of corner apertures structure, the problem that pressure drop is larger cannot effectively be reduced, and cannot be adapted to different duty requirements.
In view of this, how enabling fluid Uniform Flow between the plate of plate type heat exchanger, and improve plate utilization rate and plate heat exchange efficiency, is those skilled in the art's technical issues that need to address.
Summary of the invention
Object of the present invention is for providing a kind of fluid distributor for plate type heat exchanger, and this fluid distributor can enable fluid Uniform Flow between the plate of plate type heat exchanger after being used for plate type heat exchanger, and improves plate utilization rate and plate heat exchange efficiency.
For achieving the above object, the invention provides a kind of fluid distributor for plate type heat exchanger, described plate type heat exchanger comprises the plate of stacked setting, runner between plate is formed between plate, flow passage between described fluid distributor and described plate, the sealing device that described fluid distributor has at least two pipelines be set up in parallel and is connected with the same end part seal of each described pipeline; Between plate runner all with independent described pipeline communication, and between adjacent plate runner respectively from the different pipeline communications of fluid distributor; Described sealing device has seal cover, and each described pipeline all inserts in described seal cover, and described seal cover has the interface be connected separately with each described pipeline respectively, so that each described pipeline is communicated with corresponding outer fluid line.
Preferably, each described pipeline arranges the opening of runner between some connections described plate all vertically, and the opening of described pipeline staggers in the axial direction mutually between two, with make runner between adjacent described plate respectively from the different pipeline communications of described fluid distributor.
Preferably, described fluid distributor has two described pipelines be set up in parallel, and pipeline described in is interior pipe, and described interior pipe is nested in outer tube, and pipeline described in another is the tube chamber between described interior pipe and described outer tube; Described outer tube and described interior pipe are equipped with described opening, and described outer tube is provided with the connected entrance corresponding with described interior tube opening position, the open communication of described connected entrance and described interior pipe, and the opening of described connected entrance and described interior pipe all with described tube chamber seal isolation.
Preferably, described interior pipe and described outer tube are fitted vertically, and the opening of described interior pipe and described outer tube connected entrance are located at joint place; The opening of described connected entrance and described interior pipe is all by being located at seal between described outer tube and described interior pipe and described tube chamber seal isolation.
Preferably, described interior pipe and described outer tube are square pipe, and a side of described interior pipe fits in a side of described outer tube, and the opening of described interior pipe and the connected entrance of described outer tube are located on the side of laminating.
Preferably, described seal cover is provided with interface described in two, and one end of described outer tube is fixed in described seal cover, and interface described in is stretched out in one end of described interior pipe; Another interface of described seal cover is also provided with adapter, and the tube chamber between described interior pipe and described outer tube is communicated with outside fluid circuit by described adapter.
Preferably, the perisporium forming station terrace of described end cap, when described outer tube inserts in described seal cover, the end face of described outer tube contacts at described step surface.
Preferably, the outer end of described adapter has internal thread or external screw thread.
Fluid distributor provided by the invention, after plate type heat exchanger, in plate type heat exchanger, on plate, the number of through hole is reduced, promote the usable area of plate, and then improve the utilization rate of fluid heat transfer efficiency and plate, and due to the minimizing of through hole and back-up ring number, the region that fluid can flow expands, the distribution of fluid between plate is more even, and heat exchanging fluid kind is more, and this kind of advantage is more obvious; In addition, the factors such as dispensers of fluids pipe shape, roughness are changed, and just can change the pressure drop size of fluids within pipes comparatively easily, to adapt to the demand of different operating mode, reach and fall low pump work, energy-saving and cost-reducing object; Moreover, under there is at heat exchanging fluid the operating mode of phase transformation, change pipeline upper shed size as required, namely can improve fluid allocation situation, solve the situation that between plate, between runner, gas-liquid distribution is uneven; Separately, when plate arranges through hole, through hole can be arranged at the corner of plate, then the shape of dispensers of fluids and the restriction of application less.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of plate of typical plate type heat exchanger;
Fig. 2 is the first structural representation of plate in plate type heat exchanger provided by the present invention;
Fig. 3 is the first structural representation of fluid distributor in plate type heat exchanger provided by the present invention;
Fig. 4 is the structural representation of fluid distributor outer tube in Fig. 3;
Fig. 5 is the structural representation of pipe in fluid distributor in Fig. 3;
Fig. 6 is the structural representation that in Fig. 3, fluid distributor inserts plate mixing through hole in Fig. 2;
Fig. 7 is the structural representation that in Fig. 3, fluid distributor inserts plate type heat exchanger hybrid channel;
Fig. 8 is the structural representation of fluid distributor and polylith panel fits in Fig. 3;
Fig. 9 is the close-up schematic view at A position in Fig. 8;
Figure 10 is that in Fig. 3, fluid distributor coordinates rear axial sectional view with plate groups in plate type heat exchanger;
Figure 11 is the structural representation of the sealing device of fluid distributor in Fig. 3;
Figure 12 is the structural representation of the another kind of angle of sealing device in Figure 11;
Figure 13 is the cross sectional representation of interior pipe fitted seal pad in Fig. 5;
Figure 14 is the cross sectional representation of fluid distributor pipeline in Fig. 3;
Figure 15 is the second structural representation of plate in plate type heat exchanger provided by the present invention;
Figure 16 is the third structural representation of plate in plate type heat exchanger provided by the present invention;
Figure 17 is the structural representation that in Fig. 3, fluid distributor inserts the plate type heat exchanger be made up of plate in Figure 15;
Figure 18 is the profile of plate type heat exchanger in Figure 17;
Figure 19 is the second structural representation of fluid distributor in plate type heat exchanger provided by the present invention;
Figure 20 is the internal structure schematic diagram of Figure 19;
Figure 21 is the structural representation of pipeline in the third structure of fluid distributor in plate type heat exchanger provided by the present invention;
Figure 22 is the cross sectional representation of Figure 21.
Detailed description of the invention
Core of the present invention, for providing a kind of plate type heat exchanger, the plate of this plate type heat exchanger is provided with mixing through hole and have fluid distributor, make fluid can Uniform Flow between plate, and improve utilization rate and the heat exchange efficiency of plate.
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Plate type heat exchanger in this detailed description of the invention, comprise the plate of stacked setting, runner between plate is formed between plate, usually lines is gone out to form runner between plate in the Surface Machining of plate, same as the prior art, between plate, runner is convenient to fluid well-distributing and is flowed between plate, and plate has through hole, and the through hole of stacked plate element forms fluid passage.
Please refer to Fig. 2, Fig. 2 is the first structural representation of plate in plate type heat exchanger provided by the present invention, and the arrow of this figure also show the flow path of fluid; Fig. 3 is the first structural representation of fluid distributor in plate type heat exchanger provided by the present invention; Fig. 4 is the structural representation of fluid distributor outer tube in Fig. 3; Fig. 5 is the structural representation of pipe in fluid distributor in Fig. 3; Fig. 6 is the structural representation that in Fig. 3, fluid distributor inserts plate mixing through hole in Fig. 2; Fig. 7 is the structural representation that in Fig. 3, fluid distributor inserts plate type heat exchanger hybrid channel.
Unlike the prior art, plate type heat exchanger 2 also comprises the fluid distributor 22 inserted in fluid passage, and fluid distributor 22 has at least two is set up in parallel and the pipeline running through fluid passage, namely each pipeline of fluid distributor 22 all inserts in fluid passage, namely each through hole is run through, as shown in Figure 7, fluid distributor 22 inserts in fluid passage.In fluid distributor 22, the fluid of each pipeline flow is all different, type of fluid is equal with the number of pipeline, due at least two kinds of fluids that can circulate in the through hole for fluid distributor 22 insertion, this through hole hereinafter referred to as mixes through hole 211 (see Fig. 2), corresponding fluid passage is hybrid channel, the through hole not inserting fluid distributor 22 is single current through hole 212, and corresponding fluid passage is single channel 23.
In fluid distributor 22, the concrete structure of pipeline is: each pipeline arranges some openings (outer tube opening 2212 as shown in Figures 4 and 5 and interior tube opening 2211) all vertically, between plate runner all with independent open communication, namely between a plate runner only with an open communication, fluid in pipeline is runner through between opening course plate, or the fluid between plate in runner flows to pipeline through opening; Because the import of runner between plate is all arranged along the axis of hybrid channel with outlet, opening axially mutually the staggering in hybrid channel of pipeline between two in the program, then can make runner between adjacent plate respectively from the open communication of different pipelines, thus the fluid that between guarantee adjacent panels, in runner, circulation is different, namely circulate different fluids, to realize heat exchange function in the both sides of a plate 21.Following content is mainly described in detail to this process for two kinds of fluid heat transfers.
Fluid distributor 22 in Fig. 3 has two pipelines for fluid flowing be set up in parallel, one pipeline is interior pipe 222, interior pipe 222 is nested in outer tube 221, another pipeline is tube chamber between interior pipe 222 and outer tube 221 (following content mention " tube chamber " be tube chamber described herein), can according to the radial dimension of pipe 222 and outer tube 221 in the circulation demand appropriate design of different fluid.In addition, outer tube 221 is provided with the connected entrance 2211 corresponding with interior tube opening 2221 position, connected entrance 2211 is communicated with interior tube opening 2221, and connected entrance 2211, interior tube opening 2221 all with tube chamber seal isolation, in the direction of flow of flowing in pipe 222 namely after tube opening 2221, outer tube 221 is flowed out again, runner between the final plate flowing to correspondence through connected entrance 2211.Connected entrance 2211, interior tube opening 2221 are to prevent the fluid in interior pipe 222 and the fluid chemical field in tube chamber with the object of tube chamber seal isolation.In addition, can expect, when plate type heat exchanger 2 is for two or more fluid heat transfer, can nested two or more interior pipe 222 in outer tube 221, the mode of cooperation can be consistent with above-mentioned interior pipe 222 fit system.Interior pipe 222 and outer tube 221 can be fixed by the sticky mode such as note, welding, are in alignment all the time to keep connected entrance 2211 and interior tube opening 2221.
Hybrid channel is as the fluid inlet channel of plate type heat exchanger 2, after inserting fluid distributor 22, when two kinds of fluids flow to interior pipe 222 and tube chamber respectively, interior pipe 222 fluid flows to runner between the plate at interval through interior tube opening 2221, connected entrance 2211, and tube chamber fluid flows through runner between plate that outer tube opening 2212 flows to interval.Certainly, hybrid channel also can as the fluid outlet channels of plate type heat exchanger 2, after inserting fluid distributor 22, fluid between adjacent panels in runner flows to interior pipe 222 through connected entrance 2211, interior tube opening 2221 respectively, flow to tube chamber with through outer tube 221 opening, then go out from the outlet manifold of plate type heat exchanger 2.
Please continue composition graphs 8 to Figure 10, Fig. 8 is the structural representation of fluid distributor and polylith panel fits in Fig. 3; Fig. 9 is the close-up schematic view at A position in Fig. 8; Figure 10 is that in Fig. 3, fluid distributor coordinates rear axial sectional view with plate groups in plate type heat exchanger.
Shown in Fig. 9 three piece plate 21 to form between two adjacent the first plates runner 21b between runner 21a and the second plate, because outer tube opening 2212 and interior tube opening 2221 (corresponding with outer tube 221 connected entrance 2211 position) stagger in the axial direction, then outer tube opening 2212 is communicated with runner 21a between the first plate, interior tube opening 2221 is communicated with by runner 21b between connected entrance 2211 with the second plate, the like, see Figure 10, this kind of structure achieves the distribution of two kinds of fluids runner between plate 21 biside plate, makes the fluid that between plate 21 biside plate, flow passage is different.Therefore without the need to arranging a passage for each fluid after arranging the fluid distributor 22 of this structure, multiple fluid can be dispensed between plate in runner by a hybrid channel.When being applied to three kinds of fluid heat transfers, can insert again in outer tube 221 in one and manage, in tube chambers, two then in two between pipe with outer tube 221, pipe forms three pipelines, and the opening on three pipelines staggers vertically successively, and runner between three adjacent plates can be made to circulate three kinds of fluids; When being applied to more than three kinds fluids, can make corresponding structural modification again, principle is identical, is not repeated herein.
When mixing through hole 211 uses as fluid inlet, fluid to be dispensed between plate after runner as mentioned above, from between plate, runner flows to the one (surrounding of another one can arrange back-up ring limit fluid and flow into) in plate 21 lower end two single current through hole 212, then the two kinds of fluids flowed in hybrid channel inner fluid distributor 22 flow to single flow channel 23 respectively.When mixing through hole 211 uses as fluid issuing, flow path is contrary.
In addition, fluid distributor 22 also has sealing device.Please refer to Figure 11 and Figure 12, Figure 11 is the structural representation of the sealing device of fluid distributor in Fig. 3; Figure 12 is the structural representation of the another kind of angle of sealing device in Figure 11.
The same end of each pipeline of fluid distributor 22 is all connected with sealing device 223.Particularly, the seal cover of sealing device 223 is offered at least two interfaces, the number of interface is equal with the number of fluid distributor 22 pipeline, and each pipeline all inserts in seal cover, and the setting of interface is convenient to each pipeline and is connected with outside fluid circuit.In Figure 11, seal cover has first interface 2232 and the second interface, the fluid distributor 22 with interior pipe 222 and outer tube 221 in corresponding diagram 2, interior pipe 222 is a pipeline, is connected with first interface 2232; Tube chamber between interior pipe 222 and outer tube 221 is another pipeline, is connected with the second interface, and is communicated in the adapter 2231 of the second interface.
During assembling, sealing device 223 can be overlapped one end of pipe 222 and outer tube 221 after fixation, its middle external tube 221 is fixing in sealing device 223 inside (seal cover), such as, fixed by the mode of welding or tube, make the fluid of tube chamber flow out to fluid circuit from adapter 2231, or the fluid in fluid circuit is from the tube chamber between adapter 2231 inflow outer tube 221 and interior pipe 222, namely the partial lumen of seal cover becomes the passage between tube chamber and fluid circuit; Interior pipe 222 stretches out from interface 2232, also can be fixed on interface 2232 by the mode such as tube or welding, then be connected with another fluid circuit, realize the turnover of one other fluid.Then fluid distributor 22 realizes the connection with fluid circuit by this kind of sealing device 223.The sealing device 223 of this kind of structure designs for the fluid distributor 22 of two kinds of fluids, when being applied to the fluid distributor 22 of the two or more fluid that flows, can make corresponding change to sealing device 223.
Multiple pipelines of fluid distributor 22 are all included in its seal cover by the sealing device 223 of this structure, and different fluid circuits is communicated to sealing device 223 place respectively, and then flows in different pipelines.Therefore, the interface of pipeline each in fluid distributor 22 and fluid circuit can be isolated by sealing device 223, and to make multiple fluid flow in each pipeline in non-interfering situation, the fluid completed between plate in runner distributes; In addition, on the diversified basis of fluid distributor 22 pipeline configuration, sealing device 223 can meet each pipeline of fluid distributor 22 and be connected with the good of fluid circuit; And each for fluid distributor 22 pipeline is included in it by seal cover, make the structure of fluid distributor 22 more compact, be convenient to the connection of fluid circuit.
In above-described embodiment, plate is provided with a mixing through hole 211 and two single current through holes 212, mixing through hole 211 interpolation enters fluid distributor 22, this kind of mode of communicating, is convenient to being communicated with of runner and pipeline between plate, and be easy to realize sealing, certainly, fluid distributor 22 also can be placed on plate 21, makes runner between its pipeline tapping alignment sheets also can realize object of the present invention, now, plate 21 also can not be arranged mixing through hole 211.In addition, when fluid distributor 22 is placed on plate 21, the set-up mode of pipeline upper shed also can be not limited to the above-mentioned mode staggered vertically, such as, in fluid distributor 22, each pipeline offers some openings, each opening by flow passage between tube connector and plate, can to make equally between each plate runner only with independent pipeline communication, and runner and different pipeline communication between adjacent panels; In this kind of situation, fluid distributor 22 is also without the need to being inserted in plate 21.Can expect, when the inlet pathway of heat exchanging fluid and outlet flow passage all adopt the fluid distributor 22 of this kind of structure, plate 21 can not arrange any through hole.Certainly, mixing through hole 211 is set, fluid distributor 22 is inserted in hybrid channel, makes plate type heat exchanger 2 have the advantage of compact conformation, and be convenient to being communicated with of fluid distributor 22 and runner between plate.
As shown in the above, adopt the fluid distributor 22 of this kind of structure, first, can be circulated in the through hole of plate two or more fluid, when heat exchanging fluid kind number is equal, and hinge structure, the number of through-holes on plate 21 can be reduced, even on plate 21 without the need to arranging any through hole, promote the usable area of plate 21, and then improve the utilization rate of fluid heat transfer efficiency and plate 21; In addition, as can be seen from Figure 2, due to the minimizing of through hole and back-up ring number, the region that fluid can flow expands, and the distribution of fluid between plate is more even, and heat exchanging fluid kind is more, and this kind of advantage is more obvious; The second, the factor such as dispensers of fluids 22 pipe shape, roughness is changed, and just can change the pressure drop size of fluids within pipes comparatively easily, to adapt to the demand of different operating mode, reach and fall low pump work, energy-saving and cost-reducing object; Three, under there is at heat exchanging fluid the operating mode of phase transformation, change pipeline upper shed size as required, namely can improve fluid allocation situation, solve the situation that between plate, between runner, gas-liquid distribution is uneven; Four, through hole can be arranged at the corner of plate 21, then the shape of dispensers of fluids 22 and the restriction of application less.
Please refer to Figure 13 and Figure 14, Figure 13 is the cross sectional representation of interior pipe fitted seal pad in Fig. 5; Figure 14 is the cross sectional representation of fluid distributor pipeline in Fig. 3.
In order to realize the seal isolation of connected entrance 2211 and tube chamber, in in this detailed description of the invention, pipe 222 and outer tube 221 are fitted vertically, as shown in figure 12, interior tube opening 2221 is located at joint place with the connected entrance 2211 of outer tube 221, then the fluid of interior pipe 222 can directly flow to connected entrance 2211 after flowing out interior tube opening 2221, and then runner between course plate.Round tube is by with the outer tube 221 in this embodiment and interior pipe 222, in order to form tube chamber, the radial dimension of the two has certain difference, therefore when fitting vertically, due to the difference of radian, in theory, therebetween only there is contact wire, therefore the not laminating of the connected entrance 2211 of interior tube opening 2221 and outer tube 221, but there is certain gap, thus have employed seal to isolate connected entrance 2211, interior tube opening 2221 and tube chamber.Seal can be provided at the gasket seal 226 at interior tube opening 2221 place, see Figure 11, gasket seal 226 has the hole coordinated with the connected entrance 2211 of interior tube opening 2221 and outer tube 221, even if there is the situation that partial compromise flows to tube chamber in the fluid then flowing out opening, due to the existence of gasket seal 226, this segment fluid flow also cannot flow into tube chamber, ensures that the fluid in tube chamber and interior pipe 222 cannot mix; And intraluminal fluid also cannot flow out outer tube 221 from connected entrance 2211, tube chamber fluid and interior pipe 222 fluid is avoided all to flow to runner between same plate by connected entrance 2211; In addition, gasket seal 226 also contributes to the location of internal pipe 222 and outer tube 221, and plays certain guide functions.Independent gasket seal 226 can be arranged coordinate with interior tube opening 2221, outer tube 221 connected entrance 2211 respectively; Seal can be also integral sealing pad, integral sealing pad arranges the hole corresponding with interior tube opening 2221, outer tube 221 connected entrance 2211 number, also can realize this object.During assembling, can first by gasket seal 226 by bond or the mode such as welding and interior pipe 222 are fixed on one, interior pipe 222 to be fixed with outer tube 221, certainly, also can fix with interior pipe 222 again after fixing to gasket seal 226 and outer tube 221.
In addition, also can sealing gasket be set between each pipeline of fluid distributor 22 and hybrid channel, sealing gasket processes equally the hole with outer tube 221 connected entrance 2211 and outer tube opening 2212 adaptation, with ensure two kinds of fluids can be mutually isolated flow to runner between corresponding plate.
Please continue to refer to Figure 15 to Figure 18, Figure 15 is the second structural representation of plate in plate type heat exchanger provided by the present invention; Figure 16 is the third structural representation of plate in plate type heat exchanger provided by the present invention; Figure 17 is the structural representation that in Fig. 3, fluid distributor inserts the plate type heat exchanger be made up of plate in Figure 15; Figure 18 is the profile of plate type heat exchanger in Figure 17.
In this embodiment, the two ends of plate type heat exchanger 2 plate 21 are all provided with mixing through hole 211, two mixing through holes 211 in Figure 15 are all positioned at the medium position of end, in Figure 16, two mixing through holes 211 are positioned at the corner of plate 21 end, and two mixing through holes 211 are arranged in diagonal.The mixing through hole 211 of stacked some plates 21 defines respectively as fluid inlet hybrid channel and fluid issuing hybrid channel on plate type heat exchanger 2, all inserts a fluid distributor 22 in two hybrid channels.Describe similar with above-mentioned process fluid flow, can see Figure 16, this figure is along the central axial direction section of two fluid distributors, and the arrow head part of this figure shows the flow path of fluid.After the fluid distributor 22 of two kinds of fluids from import hybrid channel flows into, be dispensed between plate in runner, after heat exchange, between plate, runner flows to pipe 222 or tube chamber in correspondence again, then flows out plate type heat exchanger 2.The plate type heat exchanger 2 of this detailed description of the invention have employed two fluid distributors 22, then plate 21 only can be arranged two mixing through holes 211, compared to above-described embodiment, the usable area of plate 21 increases further, namely can improve heat exchange efficiency and plate 21 utilization rate further.
In addition, when above-mentioned interior pipe 222 and outer tube 221 are pipe, adopt the seal isolation between tube opening 2221, outer tube 221 connected entrance 2211, tube chamber in seal realization, other modes also can be adopted to realize seal isolation.
Please refer to Figure 19 and Figure 20, Figure 19 is the second structural representation of fluid distributor in plate type heat exchanger provided by the present invention; Figure 20 is the internal structure schematic diagram of Figure 19.
Interior pipe 222 in this detailed description of the invention and outer tube 221 are rectangular tube, and a side of interior pipe 222 fits in a side of outer tube 221, and the connected entrance 2211 of interior tube opening 2221 and outer tube 221 is located on the side of laminating.Because interior pipe 222 and outer tube 221 are rectangular tube, therefore interior pipe 222 and outer tube 221 be adjacent to fixing after (equally can by bond or the mode such as welding is fixed), the connected entrance 2211 of interior tube opening 2221 and outer tube 221 can seal laminating, even if do not arrange gasket seal 226 can ensure the mutually isolated of fluid between interior pipe 222 and tube chamber yet, thus simplify the structure of fluid distributor 22.Certainly, in order to ensure the sealing between interior pipe 222 and tube chamber further, gasket seal 226 as above also can be set.
Please refer to 21 and Figure 22, Figure 21 be the structural representation of pipeline in the third structure of fluid distributor in plate type heat exchanger provided by the present invention; Figure 22 is the cross sectional representation of Figure 21.
In this embodiment, fluid distributor 22 has two pipelines be set up in parallel equally.This fluid distributor 22 only has a body 22a, body 22a inside has the dividing plate 22a1 arranged vertically, body 22a is divided into the first pipeline 224 shown in Figure 19 and second pipe 225 by dividing plate 22a1, first pipeline 224 and second pipe 225 are respectively used to the different fluid of circulation two kinds, and the first pipeline 224 and second pipe 225 are equipped with opening, the first pipeline tapping 2241 namely shown in figure and second pipe opening 2251.Certainly, in order to reach between plate runner can with the object of open communication, the first pipeline tapping 2241 and second pipe opening 2251 must be located on the tube wall of the body 22a beyond dividing plate 22a1.Can release thus, when for two or more fluid heat transfer, the shape of dividing plate 22a1 can be changed or set up dividing plate 22a1, to form required number of conduits.
Except the structure of above-described embodiment, the pipeline of two or more freestanding bodies as fluid distributor 22 directly can also be set, in the hybrid channel of overall insertion plate type heat exchanger 2, also can realize object of the present invention.Fluid distributor 22 structure in above-described embodiment is more compact, is convenient to and between plate, runner sets up connected relation, and can reduce the area mixing through hole 211 as far as possible, thus increases the entire area of runner between plate 21 plates, improves heat exchange efficiency further; In addition, in above-described embodiment, fluid just starts heat exchange (tube wall of another pipeline of fluid contact in a pipeline) entering between plate before runner, heat exchange efficiency is improved again further.
Above a kind of plate type heat exchanger provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.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 improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (8)
1. the fluid distributor for plate type heat exchanger, described plate type heat exchanger comprises the plate (21) of stacked setting, plate forms runner between plate between (21), flow passage between described fluid distributor (22) and described plate, it is characterized in that, the sealing device (223) that described fluid distributor (22) has at least two pipelines be set up in parallel and is connected with the same end part seal of each described pipeline; Between plate runner all with independent described pipeline communication, and between adjacent plate runner respectively from the different pipeline communications of fluid distributor (22); Described sealing device (223) has seal cover, and each described pipeline all inserts in described seal cover, and described seal cover has the interface be connected separately with each described pipeline respectively, so that each described pipeline is communicated with corresponding outer fluid line.
2. the fluid distributor for plate type heat exchanger according to claim 1, it is characterized in that, each described pipeline arranges the opening of runner between some connections described plate all vertically, the opening of described pipeline staggers in the axial direction mutually between two, with make runner between adjacent described plate respectively from the different pipeline communications of described fluid distributor (22).
3. the fluid distributor for plate type heat exchanger according to claim 2, it is characterized in that, described fluid distributor (22) has two described pipelines be set up in parallel, pipeline described in one is interior pipe (222), described interior pipe (222) is nested in outer tube (221), and pipeline described in another is the tube chamber between described interior pipe (222) and described outer tube (221); Described outer tube (221) and described interior pipe (222) are equipped with described opening, and described outer tube (221) is provided with the connected entrance (2211) corresponding with described interior pipe (222) aperture position, the open communication of described connected entrance (2211) and described interior pipe (222), and the opening of described connected entrance (2211) and described interior pipe (222) all with described tube chamber seal isolation.
4. the fluid distributor for plate type heat exchanger according to claim 3, it is characterized in that, described interior pipe (222) and described outer tube (221) are fitted vertically, and the opening of described interior pipe (222) and described outer tube (221) connected entrance (2211) are located at joint place; The opening of described connected entrance (2211) and described interior pipe (222) is all by being located at seal between described outer tube (221) and described interior pipe (222) and described tube chamber seal isolation.
5. the fluid distributor for plate type heat exchanger according to claim 3, it is characterized in that, described interior pipe (222) and described outer tube (221) are square pipe, one side of described interior pipe (222) fits in a side of described outer tube (221), and the connected entrance (2211) of the opening of described interior pipe (222) and described outer tube (221) is located on the side of laminating.
6. the fluid distributor for plate type heat exchanger according to any one of claim 3 to 5, it is characterized in that, described seal cover is provided with interface described in two, one end of described outer tube (221) is fixed in described seal cover, and interface described in (2232) is stretched out in one end of described interior pipe; Another interface of described seal cover is also provided with adapter (2231), and the tube chamber between described interior pipe (222) and described outer tube (221) is communicated with outside fluid circuit by described adapter.
7. the fluid distributor for plate type heat exchanger according to claim 6, is characterized in that, the perisporium forming station terrace of described seal cover, and when described outer tube inserts in described seal cover, the end face of described outer tube contacts at described step surface.
8. the fluid distributor for plate type heat exchanger according to claim 7, is characterized in that, the outer end of described adapter has internal thread or external screw thread.
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| CN201110338168.XA CN103090716B (en) | 2011-10-31 | 2011-10-31 | For the fluid distributor of plate type heat exchanger |
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| CN201110338168.XA CN103090716B (en) | 2011-10-31 | 2011-10-31 | For the fluid distributor of plate type heat exchanger |
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| CN103090716A CN103090716A (en) | 2013-05-08 |
| CN103090716B true CN103090716B (en) | 2015-11-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104048548B (en) * | 2014-05-26 | 2016-01-27 | 杭州三花微通道换热器有限公司 | Adjustable refrigerant distributing device and the heat exchanger with it |
| DE102015010289A1 (en) * | 2015-08-08 | 2017-02-09 | Modine Manufacturing Company | Plate heat exchanger |
| CN113318466B (en) * | 2019-07-02 | 2022-07-12 | 江苏远卓设备制造有限公司 | Implementation method of plate-type evaporator |
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| CN103090716A (en) | 2013-05-08 |
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Effective date of registration: 20170401 Address after: 310018 Hangzhou economic and Technological Development Zone, Zhejiang, No. 21 Avenue, No. 60 Patentee after: Zhejiang Sanhua Automobile Components Co., Ltd. Address before: 310018 289-2, Hangzhou Economic Development Zone, Zhejiang, No. 12 Patentee before: Hangzhou Sanhua Institute Co., Ltd. |