CN113701531A - Novel vertical titanium alloy micro-channel inner spiral tube plate type heat exchanger - Google Patents
Novel vertical titanium alloy micro-channel inner spiral tube plate type heat exchanger Download PDFInfo
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- CN113701531A CN113701531A CN202111102505.5A CN202111102505A CN113701531A CN 113701531 A CN113701531 A CN 113701531A CN 202111102505 A CN202111102505 A CN 202111102505A CN 113701531 A CN113701531 A CN 113701531A
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- heat exchange
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 83
- 238000003466 welding Methods 0.000 claims abstract description 22
- 238000009792 diffusion process Methods 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 claims description 83
- 239000011229 interlayer Substances 0.000 claims description 11
- 239000011159 matrix material Substances 0.000 claims description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000010146 3D printing Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Classifications
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- 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
- F28D9/04—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 being formed by spirally-wound plates or laminae
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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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
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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
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
- F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/266—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by screw-type connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
- F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
- F28F9/268—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by permanent joints, e.g. by welding
Abstract
The invention relates to a vertical titanium alloy micro-channel inner spiral tube plate type heat exchanger, belonging to the technical field of energy. The vertical titanium alloy micro-channel plate heat exchanger takes supercritical nitrogen and nitrogen as circulating heat exchange working media. The heat exchanger can stack the heat exchange plate at will, and because the heat exchanger is composed of four symmetrical parts, the four coil pipes can be combined at will according to the structure and used in a smaller space. The cold and hot fluid flows into the heat exchange plate with double-layer coil bundles and is guided into an internal vortex by coaxial helical blades, the upper layer coil and the bottom layer coil are coiled in the same direction, and the arrangement position of the internal tube bundles is changed by connecting twisted connecting bent pipes between the two layers of coils. All parts in the heat exchanger are subjected to male die diffusion welding. This vertical titanium alloy microchannel plate heat exchanger possess higher power weight ratio and high pressure resistance, than the lower weeping possibility of conventional plate heat exchanger, the structure is more firm stable, and heat transfer performance is stronger, because of its unique symmetry structure of assembling, can be more nimble be applicable to in the little space, and the cost is lower.
Description
Technical Field
The invention relates to the technical field of energy, relates to a plate heat exchanger, and particularly relates to a novel vertical titanium alloy micro-channel inner spiral tube plate heat exchanger.
Background
With the development of the industries such as aerospace, ships and energy, the traditional heat exchanger can not meet the requirements of the fields on the working temperature, pressure, power-weight ratio and the like of the heat exchanger. Compared with the traditional radiator, the micro-channel radiator has the characteristics of compact structure, large heat exchange area per unit volume, high heat exchange efficiency and the like while meeting the requirements. Compared with other heat exchangers, the plate heat exchanger has the advantages of higher heat transfer coefficient, lower cost, smaller occupied area and lighter overall weight, and the interior of the plate heat exchanger can be freely combined by plates with different structural types. The supercritical nitrogen is a common working medium in the microchannel heat exchanger and has the advantages of safety, rich resources, lower critical pressure and the like. Because the physical parameters of the supercritical fluid in the quasi-critical area are changed violently, the thermal flow field of the supercritical fluid is distributed in layers in the radial direction of the tube, and the heat exchange strength of the supercritical fluid can be effectively improved by using the internal spiral structure. At present, the energy consumption is increased sharply, the research on the enhanced heat transfer of the heat exchanger becomes a hot field, and important values are played in the aspects of energy conservation, environmental protection, cost reduction and the like.
Chinese patent publication No. CN212778792U discloses a microchannel plate heat exchanger core with a flow guide area and a fillet, which comprises a plurality of high-temperature medium plates, low-temperature medium plates and end plates which are stacked and combined along the plate thickness direction, wherein the upper surfaces of the high-temperature medium plates are provided with a high-temperature medium flow channel and a high-temperature medium flow guide area, and the high-temperature medium flow guide area is internally provided with a high-temperature medium flow guide rib and a high-temperature medium collection groove; the upper surface of the low-temperature medium plate is provided with a low-temperature medium flow channel and a low-temperature medium flow guiding area, and the low-temperature medium flow guiding area is internally provided with a low-temperature medium flow guiding rib and a low-temperature medium collecting groove. The utility model discloses heat transfer capacity is strong, the resistance loss is lower, the fluid distributes evenly, the thermal efficiency is high. However, the micro-channel plate heat exchanger core is limited in application, can only be used for using fluid with working pressure not much different from ambient pressure as an internal working medium, is easy to leak when using supercritical fluid as a heat exchange working medium, and has poor applicability to different spaces due to the fact that more than two heat exchange plates are used in parallel.
Chinese patent publication No. CN204830955U discloses a novel micro-channel plate heat exchanger based on 3D printing technology, which belongs to a novel heat exchange device, and comprises a cold fluid inlet channel, a hot fluid inlet channel, a cold fluid outlet channel, a hot fluid outlet channel, a cold fluid flow-splitting channel, a cold fluid flow-converging channel, a hot fluid flow-splitting channel, a hot fluid flow-converging channel, an upper sealing plate and a lower sealing plate. The plate heat exchanger is integrally manufactured based on a 3D printing technology, has the characteristics of high heat transfer coefficient, large heat exchange area, no welding interface, good sealing performance and the like, effectively solves the problems of deformation and tensile crack of the traditional heat exchanger plate during welding, and eliminates the deformation stress during welding; meanwhile, the formed microchannel heat exchanger has good structural performance and strong pressure-bearing capacity, and has good corrosion resistance and high temperature resistance by adopting nickel-based alloy as a material. Although the 3D printing technology for the micro-channel plate type heat exchanger has better sealing performance, the manufacturing cost is high, the yield is lower, the overall structure is single, and the micro-channel plate type heat exchanger cannot be suitable for multiple small spaces. The processing level of the nickel-based alloy in China is generally lagged behind, the price fluctuation is large, and the nickel-based alloy is lack of low-temperature toughness and fracture toughness compared with titanium alloy.
Disclosure of Invention
The invention aims to provide a novel titanium alloy micro-channel plate heat exchanger taking supercritical nitrogen as an internal heat transfer working medium, which enhances the heat exchange efficiency of the heat exchanger, improves the power-weight ratio, reduces the cost and the use area, ensures that the integral structure of the heat exchanger is more stable, and improves the phenomena that the traditional plate heat exchanger has weak high-temperature and high-pressure resistance and is easy to leak between heat exchange plates.
In order to achieve the technical purpose, the technical scheme of the invention is as follows.
A vertical titanium alloy microchannel inner spiral tube plate type heat exchanger comprises a double-headed clamping bolt perforation 14, an outflow rectangular guide tube hole 6, a top pressing plate 1 of a cold fluid inlet 9 and a hot fluid inlet 10, a bottom pressing plate 5, a plurality of layers of heat exchange plates 4 clamped, an inflow sleeve pipe guide tube 2, a cold fluid inlet guide tube 16, a hot fluid inlet guide tube 17 and a double-headed clamping bolt 3, wherein the double-headed clamping bolt perforation 14 is positioned at four corners of the top pressing plate 1, the bottom pressing plate 5 and all the heat exchange plates and is communicated up and down, the double-headed clamping bolt 3 penetrates through all the double-headed clamping bolt perforation 14 to fix the whole heat exchanger, the outflow rectangular guide tube hole 6 is positioned at two outlet sides of outlet guide plates 12 at the left side and the right side of the heat exchange plate 4 and penetrates through all the heat exchange plates 4 and the top pressing plate 1, the cold fluid inlet 9 is positioned at the center of the inflow sleeve pipe guide tube 2, and the hot fluid inlet 10 is positioned at the periphery of the inflow sleeve pipe guide tube 2, the inflow sleeve pipe 2 penetrates through all the heat exchange plates 4 and the top pressing plate 1 in the middle of the inlet guide plate 13, the top pressing plate 1 is located at the top of the heat exchanger and is horizontally placed, the bottom pressing plate 5 is horizontally placed at the bottom of the heat exchanger and serves as a base of the heat exchanger, and the heat exchange plates 4 are stacked in a multi-layer mode in a vertical flush mode and clamped between the top pressing plate 1 and the bottom pressing plate 5.
Optionally, the heat exchange plate 4 is composed of four symmetrically arranged double-layer coil pipes 11, two bilaterally symmetrical outlet guide plates 12 and two bilaterally symmetrical inlet guide plates 13, the two inlet guide plates 13 and the two outlet guide plates 12 are respectively located at the front, back, left and right positions of the heat exchange plate 4 and are symmetrically welded, the abutted seam plate 15 is clamped between the double-layer coil pipes 11 and the outlet guide plates 12 and the inlet guide plates 13, and the pipe openings between all the plates are integrally formed by diffusion welding without gaskets.
Optionally, the cold fluid inlet guide pipes 16 and the hot fluid inlet guide pipes 17 are symmetrically arranged in a matrix on the left side and the right side of the inlet guide plate 13, four single pipes in the middle of the inlet guide plate 13 are cold fluid inlet guide pipes, four single pipes on the two sides are hot fluid inlet guide pipes 17, and all the pipelines in the bottom layer coil 18 are placed in a spiral manner.
Optionally, four single tubes on the upper layer of the outlet guide plate 12 are cold fluid outlet guide tubes 21, four single tubes on the lower layer are hot fluid outlet guide tubes 20, and the spiral directions of the bottom coil 18 and the upper coil 19 are the same.
Optionally, the double-layer coil 11 in the components of the heat exchange plate 4 is formed by assembling and welding a bottom-layer coil 18, an upper-layer coil 19 and a coil interlayer torsion connection elbow 27, the bottom-layer coil 18 is formed by assembling and welding a bottom-layer coil tube bundle 23 and a bottom-layer coil tube 90 ° corner, the upper-layer coil 19 is formed by assembling and welding an upper-layer coil tube bundle 25 and an upper-layer coil tube 90 ° corner, the bottom-layer coil 18 and the upper-layer coil tube 19 are connected by assembling and welding a coil interlayer torsion connection elbow 27, all coil tube bundles are internally provided with coaxial helical blades 22 and are assembled and welded with the coil tube bundles, and the coil interlayer torsion connection elbow 27 is internally provided with a cold tube 271 and a heat tube 272.
The technical scheme provided by the embodiment has at least the following beneficial effects.
The power weight ratio can be increased by manufacturing the titanium alloy for the heat exchanger, the heat exchange fluid can be set to be supercritical nitrogen and nitrogen, and is in a nitrogen two-fluid state, and can be used as a heat exchange working medium in the same loop, so that the heat exchanger is more energy-saving. The supercritical nitrogen has the advantages of safety, rich resources, lower critical pressure, lower critical temperature and the like. The plates are fixedly connected through the inlet and outlet guide pipes with two cross-sectional shapes, so that the possibility of liquid leakage between the plates is reduced, the high pressure resistance of the heat exchanger is improved, and the function of a positioning guide rod in the conventional plate heat exchanger is replaced. The four double-head clamping bolts simultaneously penetrate through the heat exchange plate, the top pressing plate and the bottom pressing plate and simultaneously fix the heat exchanger overall structure with the inlet and outlet guide pipes with two cross-sectional shapes, so that the heat exchanger is more stable in structure. The four tube bundles in the heat exchange plate are made into double-layer coil pipes, and the straight tube parts in the coil pipes are internally provided with coaxial spiral flow guide structures, so that the radial flow of fluid and the heat exchange area of the fluid are increased, and the heat exchange performance of the heat exchanger is enhanced. The bottom layer coil pipe bundle and the upper layer coil pipe bundle adopt different cross-sectional shapes, so that the heat exchange strength can be increased, and the pressure drop can be reduced. The heat exchanger can stack the heat exchange plate at will, and because the heat exchanger is composed of four symmetrical parts, the four parts can be combined at will according to the structure to be used in a smaller space, and the applicability of the heat exchanger to the small space is increased. The heat exchanger is changed from the conventional horizontal direction to the vertical direction, so that the stability of the whole structure is improved. All parts in the heat exchanger are assembled and welded by male dies, so that the cost can be effectively saved. The assembly welding among all parts is formed by diffusion welding and integration, no gasket is arranged, and the leakage phenomenon of the working medium can be effectively reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is an exploded schematic view of a vertical titanium alloy microchannel plate heat exchanger according to an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a microchannel heat exchange plate according to an embodiment of the invention.
Fig. 3 is a cross-sectional view of a bottom layer coil of a heat exchange panel according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of an upper coil of a heat exchange plate according to an embodiment of the invention.
Figure 5 is a perspective view of the various assemblies of a coiled tubing according to an embodiment of the present invention.
In the figure: 1. top clamp plate, 2, inflow sleeve pipe, 3, double-end clamping bolt, 4, heat exchange plate, 5, bottom clamp plate, 6, outflow rectangular pipe hole, 7, cold fluid outlet, 8, hot fluid outlet, 9, cold fluid inlet, 10, hot fluid inlet, 11, double-layer coil pipe, 12, outlet guide plate, 13, inlet guide plate, 14, double-end clamping bolt perforation, 15, splice plate, 16, cold fluid inlet guide pipe, 17, hot fluid inlet guide pipe, 18, bottom layer coil pipe, 19, upper layer coil pipe, 20, hot fluid outlet guide pipe, 21, cold fluid outlet guide pipe, 22, coaxial helical blade, 23, bottom layer coil pipe bundle, 24, bottom layer coil pipe 90-degree corner, 25, upper layer coil pipe bundle, 26, upper layer coil pipe 90-degree corner, 27, coil pipe interlayer torsion connection elbow, 271, cold pipe, 272 and heat pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in further detail below with reference to the drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
Fig. 1 is a schematic structural diagram of a vertical titanium alloy microchannel plate heat exchanger according to an embodiment of the present invention. As shown in fig. 1, the heat exchanger is provided with an inflow casing pipe 2 which runs through the symmetry of a top pressing plate 1 and all heat exchange plates 4, the four corners of the whole heat exchanger are provided with double-headed clamping bolt through holes 14, the double-headed clamping bolts 3 reinforce the heat exchanger, four outflow rectangular pipe holes 6 which run through a bottom pressing plate 5 and all the heat exchange plates 4 are arranged on the bottom pressing plate 5, the middle part of the heat exchanger is clamped with a plurality of layers of heat exchange plates 4, and the four corners of the bottom pressing plate 5 are welded with vertical legs, so that the heat exchanger can be vertically placed.
Fig. 2 is a schematic structural diagram of a microchannel heat exchange plate according to an embodiment of the present invention. As shown in fig. 2, the heat exchange plate 4 is composed of a double-layer coil 11, a spliced plate 15, an outlet guide plate 12 and an inlet guide plate 13, a round cold fluid inlet 9 and a partial circular hot fluid inlet 10 are arranged in the middle of the inlet guide plate 13, stud clamping bolt through holes 14 are arranged on two sides of the inlet guide plate, rectangular guide pipe holes 6 are arranged on two sides of the outlet guide plate 12, guide pipe openings between all plates are formed by diffusion welding integrally and are free of gaskets, and the spliced plate 15 and the double-layer coil fill gaps between the outlet guide plate 12 and the inlet guide plate 13.
FIG. 3 is a cross-sectional view of a bottom layer coil of a thermal plate according to an embodiment of the present invention. As shown in fig. 3, the cold fluid inlet draft tube 16 and the hot fluid inlet draft tube 17 are symmetrically arranged in a matrix on both sides of the heat exchange plate 4, four single tubes in the middle of the inlet guide plate 13 are cold fluid inlet draft tubes, four single tubes on both sides are hot fluid inlet draft tubes 17, and all the tubes in the bottom layer coil 18 are placed in a spiral manner.
Fig. 4 is a cross-sectional view of an upper coil of a heat exchange plate according to an embodiment of the present invention. As shown in fig. 4, the four single tubes on the upper layer of the outlet of the upper layer coil 19 are cold fluid outlet guide tubes 21, the four single tubes on the lower layer are hot fluid outlet guide tubes 20, and the spiral directions of the bottom layer coil 18 and the upper layer coil 19 are the same.
Figure 5 is a perspective view of the various assemblies of a coiled tubing provided by an embodiment of the present invention. As shown in fig. 5, the bottom layer coil pipe 18 is formed by assembling and welding a bottom layer coil pipe bundle 23 and a bottom layer coil pipe 90 ° corner, the upper layer coil pipe 19 is formed by assembling and welding an upper layer coil pipe bundle 25 and an upper layer coil pipe 90 ° corner, the bottom layer coil pipe 18 and the upper layer coil pipe 19 are connected by assembling and welding a coil pipe interlayer torsion connection bent pipe 27, all the coil pipe bundles are internally provided with coaxial helical blades 22 and are assembled and welded with the coil pipe bundles, two pipes at the bottom of the bottom layer coil pipe 18 and the bottom layer coil pipe 90 ° corner 24 are arched cross sections, the top is an elliptical cross section, all the single pipes in the two pipes of the upper layer coil pipe 19 and the upper layer coil pipe 90 ° corner 26 are elliptical cross sections, the elliptical cross section dimensions of all the elliptical cross section single pipes are 1mm wide by 1.5mm high, 271 of the coil pipe interlayer torsion connection bent pipe 27 is a cold pipe, and 272 is a heat pipe.
Working mode and principle of the vertical titanium alloy microchannel inner spiral tube plate type heat exchanger.
In the heat exchanger, cold fluid flows into the heat exchanger from a cold fluid inlet 9 which is arranged in an inflow sleeve pipe 2, hot fluid flows into the heat exchanger from a hot fluid inlet 10 which is arranged outside the inflow sleeve pipe 2, cold and hot fluid exchanges heat through a heat exchange plate 4 of an intermediate interlayer and then flows out from an outflow rectangular pipe hole 6, the heat exchanger is provided with two cold fluid outlets 7 and two hot fluid outlets 8, and the whole structure of the heat exchanger is strengthened and fixed by a double-head clamping bolt 3 which penetrates through the heat exchange plate 4, a top pressing plate 1 and a bottom pressing plate 5.
Cold fluid in the heat exchange plate is shunted by a cold fluid inlet 9 on an inlet guide plate 13 of the heat exchange plate 4 and enters the heat exchange plate 4, hot fluid is shunted by a hot fluid inlet 10 and enters the heat exchange plate 4, heat exchange is carried out in four symmetrical double-layer coil pipes 11, then the hot fluid flows out from a rectangular outlet on an outlet guide plate 12 through an outflow rectangular guide pipe hole 6, a double-head clamping bolt through hole 14 is arranged on the inlet guide plate 13 and used for penetrating through a double-head clamping bolt 3 to fix the heat exchange plate 4, and a seam splicing plate 15 is arranged in the heat exchange plate 4 and used for being fixedly connected in the heat exchange plate 4.
The cold fluid in the bottom layer of the heat exchange plate flows into the bottom layer coil 18 through the cold fluid inlet draft tube 16, and the hot fluid flows into the bottom layer coil 18 through the hot fluid inlet draft tube 17.
Cold fluid on the upper layer of the heat exchange plate flows out of the bottom-layer coil 18 through the cold fluid outlet guide pipe 21, heat fluid flows out of the bottom-layer coil 18 through the hot fluid outlet guide pipe 20, and the cold fluid outlet guide pipe 21 and the hot fluid outlet guide pipe 20 are arranged in a symmetrical matrix on two sides of the heat exchange plate.
The interlayer twist connecting bent pipe 27 can change the arrangement sequence of the cold heat pipes in the bottom layer coil pipe bundle 23 and the upper layer coil pipe bundle 25 while connecting the bottom layer coil pipe 18 and the upper layer coil pipe 19, and all the coil pipe bundles are internally provided with the coaxial helical blades 22 and are spliced and welded with the coil pipe bundles, so that the heat exchange can be enhanced when fluid flows through the pipe bundles.
The coil can be used by combining four blocks, or less than four blocks can be assembled according to space requirements, the twisted connection bent pipe 27 between the coil layers changes the arrangement layout of cold and hot pipes leading from the bottom coil 18 to the upper coil 19, wherein 271 is a cold pipe and 272 is a hot pipe, all the assembling and welding in the heat exchanger are integrally formed by diffusion welding, and no gasket is arranged in the heat exchanger to ensure that the supercritical fluid cannot leak in the heat exchanger.
Claims (5)
1. A vertical titanium alloy microchannel inner spiral tube plate heat exchanger is characterized by comprising a double-end clamping bolt through hole (14), an outflow rectangular guide tube hole (6), a cold fluid inlet (9), a top pressing plate (1) of a hot fluid inlet (10), a bottom pressing plate (5), a plurality of layers of heat exchange plates (4) clamped by the pressing plate, an inflow sleeve guide tube (2), a cold fluid inlet guide tube (16), a hot fluid inlet guide tube (17) and double-end clamping bolts (3), wherein the double-end clamping bolt through hole (14) is positioned at the four corners of the top pressing plate (1), the bottom pressing plate (5) and all the heat exchange plates and is communicated up and down, the double-end clamping bolt (3) penetrates through all the double-end clamping bolt through holes (14) to fix the whole heat exchanger, the outflow rectangular guide tube hole (6) is positioned at the two outlet sides of outlet guide plates (12) at the left side and the right side of the heat exchange plate (4), run through all heat transfer boards (4) and top clamp plate (1), cold fluid entry (9) are located inflow sleeve pipe (2) center, and hot-fluid entry (10) are located inflow sleeve pipe (2) periphery, inflow sleeve pipe (2) pass all heat transfer boards (4) and top clamp plate (1) in the middle of entry guide plate (13), top clamp plate (1) are located the heat exchanger top and keep flat, bottom clamp plate (5) keep flat in the heat exchanger bottom and act as the heat exchanger base simultaneously, parallel and level stack about heat transfer board (4) multilayer is in the middle of top clamp plate (1) and bottom clamp plate (5).
2. The vertical titanium alloy microchannel inner spiral tube plate heat exchanger according to claim 1, wherein the heat exchange plate (4) is composed of four symmetrically arranged double-layer coil pipes (11), two bilaterally symmetrical outlet guide plates (12) and two bilaterally symmetrical inlet guide plates (13), the two inlet guide plates (13) and the two outlet guide plates (12) are symmetrically welded at the front, back, left and right positions of the heat exchange plate (4) respectively, a joint plate (15) is clamped between the double-layer coil pipes (11), the outlet guide plates (12) and the inlet guide plates (13), and conduit ports between all plates are formed integrally by diffusion welding without gaskets.
3. The vertical titanium alloy microchannel inner spiral tube plate heat exchanger is characterized in that cold fluid inlet guide tubes (16) and hot fluid inlet guide tubes (17) are symmetrically arranged in a matrix manner on the left side and the right side of an inlet guide plate (13), four single tubes in the middle of the inlet guide plate (13) are the cold fluid inlet guide tubes, four single tubes on the two sides are the hot fluid inlet guide tubes (17), and all pipelines in a bottom layer coil (18) are spirally arranged.
4. The vertical titanium alloy microchannel inner spiral tube plate heat exchanger as recited in claim 1, wherein four upper-layer single tubes of the outlet guide plate (12) are cold fluid outlet guide tubes (21), four lower-layer single tubes are hot fluid outlet guide tubes (20), and the spiral directions of the bottom-layer coil (18) and the upper-layer coil (19) are the same.
5. The vertical titanium alloy microchannel inner spiral tube plate heat exchanger according to claim 1, the heat exchange plate is characterized in that a double-layer coil (11) in a component of the heat exchange plate (4) is formed by assembling and welding a bottom-layer coil (18), an upper-layer coil (19) and a coil interlayer torsion connection bent pipe (27), the bottom-layer coil (18) is formed by assembling and welding a bottom-layer coil pipe bundle (23) and a bottom-layer coil pipe 90-degree corner, the upper-layer coil (19) is formed by assembling and welding an upper-layer coil pipe bundle (25) and an upper-layer coil pipe 90-degree corner, the bottom-layer coil (18) and the upper-layer coil (19) are connected by assembling and welding the coil interlayer torsion connection bent pipe (27), coaxial helical blades (22) are arranged in all coil pipe bundles and are assembled and welded with the coil pipe bundles, and a cold pipe (271) and a heat pipe (272) are arranged in the coil interlayer torsion connection bent pipe (27).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111102505.5A CN113701531B (en) | 2021-09-20 | 2021-09-20 | Vertical titanium alloy microchannel inner spiral tube plate type heat exchanger |
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| CN202111102505.5A CN113701531B (en) | 2021-09-20 | 2021-09-20 | Vertical titanium alloy microchannel inner spiral tube plate type heat exchanger |
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| CN113701531A true CN113701531A (en) | 2021-11-26 |
| CN113701531B CN113701531B (en) | 2024-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053394A (en) * | 2023-09-21 | 2023-11-14 | 无锡北溪空调设备有限公司 | Heat exchanger with good heat dissipation effect for central air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU571692A2 (en) * | 1976-01-21 | 1977-09-05 | Предприятие П/Я А-1877 | Plate-type heat exchanger |
| CN106546115A (en) * | 2016-10-19 | 2017-03-29 | 华东理工大学 | A kind of plate type heat exchanger with interpolation supporter |
| US20210041178A1 (en) * | 2019-08-07 | 2021-02-11 | Meggitt Aerospace Limited | Heat exchangers and methods of making the same |
| CN112629294A (en) * | 2020-12-30 | 2021-04-09 | 大连海事大学 | Three-strand spiral winding printed circuit board type heat exchanger core |
| US20210270534A1 (en) * | 2020-02-28 | 2021-09-02 | General Electric Company | Circular crossflow heat exchanger |
-
2021
- 2021-09-20 CN CN202111102505.5A patent/CN113701531B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU571692A2 (en) * | 1976-01-21 | 1977-09-05 | Предприятие П/Я А-1877 | Plate-type heat exchanger |
| CN106546115A (en) * | 2016-10-19 | 2017-03-29 | 华东理工大学 | A kind of plate type heat exchanger with interpolation supporter |
| US20210041178A1 (en) * | 2019-08-07 | 2021-02-11 | Meggitt Aerospace Limited | Heat exchangers and methods of making the same |
| US20210270534A1 (en) * | 2020-02-28 | 2021-09-02 | General Electric Company | Circular crossflow heat exchanger |
| CN112629294A (en) * | 2020-12-30 | 2021-04-09 | 大连海事大学 | Three-strand spiral winding printed circuit board type heat exchanger core |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117053394A (en) * | 2023-09-21 | 2023-11-14 | 无锡北溪空调设备有限公司 | Heat exchanger with good heat dissipation effect for central air conditioner |
| CN117053394B (en) * | 2023-09-21 | 2024-02-13 | 无锡北溪空调设备有限公司 | Heat exchanger with good heat dissipation effect for central air conditioner |
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| CN113701531B (en) | 2024-03-08 |
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