WO2016165629A1 - Spiral fin heat exchanger fastened by fixing supports - Google Patents

Abstract

A spiral fin heat exchanger fastened by fixing supports comprises a spiral fin tube (1) with a rolled-layer structure, at least two groups of spiral fin tube plane fixing supports (2) fastening outside the spiral fin tube (1), a plane fixing support connection panel (3) and bottom fixing panels (4). Each layer of the spiral fin tube (1) at the upper part of the spiral fin tube (1) is connected and fixed with one another through the plane fixing support connection panel (3) at the end of the spiral fin tube plane fixing support (2). The spiral fin tube (1) in the same plane at the bottom of the spiral fin tube (1) is sandwiched between two parallel groups of spiral fin tube plane fixing supports (2), the ends of which on the same side are in threaded engagement with the bottom fixing panel (4) through a screw. Each bottom fixing panel (4) is connected and fixed with the end of the corresponding spiral fin tube plane fixing support (2) on each layer of the spiral fin tube (1) at the lower part through the plane fixing support connection panel (3). The components of the heat exchanger are simple in structure, convenient to process, and low in cost. The components are fast and effectively assembled, firmly fixed, and not easily loosened.

Description

Fixed bracket buckled fin heat exchanger Technical field

The invention relates to a rotary fin heat exchanger, in particular to a fixed bracket fastening rotary fin heat exchanger.

Background technique

At present, with the development of the refrigeration industry such as refrigerators, the rotary fin heat exchanger has gradually been applied in the field of refrigeration.

China Patent Application No. 200610111866.5, Application Date August 29, 2006, Authorization Announcement Date: December 31, 2008, Authorization Bulletin No. CN100447505C, discloses a "spiral fin condenser", a spiral fin condenser, including A spiral finned tube formed by a pleated strip having a predetermined width and spirally wound around a tube flowing through a fluid, characterized in that the spiral finned tube is first bent into a serpentine shape for horizontal arrangement by a horizontal fixing member And fixed, and then secondarily bent in the longitudinal direction of the first curved meandering, wherein the horizontal fixing member comprises a fixing device having a semi-cylindrical portion and an extending portion, the semi-cylindrical portion having an outer portion with the spiral finned tube An inner diameter having an equal surface diameter, the extending portion extends in parallel on both sides of the semi-cylindrical portion, and the fixing device is pressed by the pressing device so as to be tightly fitted to the outer surface of the spiral finned tube; the beneficial effects of the present invention: for solving Bolts are a problem in time-consuming fastening of the fasteners and provide a spiral finned condenser with an increased heat exchange rate per unit volume.

However, the above invention patent has the following problems: 1. Since the bracket of the fixed spiral fin pipe needs to be bent out of the "semi-cylindrical portion", the stamping process required for processing the bracket is large, the punching die input is too large, and manual punching is required. A good sheet is bent in a semi-cylindrical shape, which is time-consuming and labor intensive; 2. "The semi-cylindrical portion is pressed by the pressing device so as to fit tightly to the outer surface of the spiral finned tube", here the spiral fin The outer surface of the tube refers to the outer surface of the "pleat belt having a predetermined width and spirally wound on the tube flowing through the fluid", the mounting efficiency of the bracket at this place is low, the semi-cylindrical portion of the bracket and the spiral finned tube The fixing is not tight and easy to loosen; 3. The “semi-cylindrical portion has a portion extending parallel to both sides”, and the semi-cylindrical portion is pressed and fixed on the pleated belt of the spiral finned pipe by the pressing device, which is disadvantageous Heat dissipation; the above problems seriously affect the processing cost, efficiency, product quality and heat dissipation effect of such heat exchangers, which are urgently needed to be solved.

Summary of the invention

The technical problem to be solved by the present invention is to provide a fixed bracket buckled-wing fin heat exchanger, which has simple component structure, convenient processing, low cost, quick and efficient assembly between components, and firm fixation between components. Not easy to loose.

In order to solve the above technical problem, the present invention adopts the following technical solution: a fixed bracket fastening fin heat exchanger, which comprises a spiral finned tube with a rolled layer structure, at least two sets of spiral finned tube flat fixing frames, and a plane fixing a connecting plate and a bottom fixing plate, the spiral finned tube of the rolled layer structure comprises a condensing tube and a spiral fin spirally wound around the condensing tube;

Each set of spiral finned tube plane fixing frame comprises a small bracket and a small bracket cover plate; the small bracket and the small bracket cover plate are arranged in a direction perpendicular to the pipeline direction of the spiral finned tube, and the upper part of the spiral finned tube of the rolled layer structure The spiral finned tubes in the same plane are sandwiched between a set of small brackets and small bracket covers, and the small brackets and the small bracket covers are inserted and fixed to maintain the fixed between the spiral finned tubes in the same plane. The spacing is simultaneously prevented from lateral displacement of the spiral finned tube in the same layer, the insertion and fixing structure is simple, the processing is convenient, and the installation is quick, and the spiral finned tubes in the upper layer of the spiral finned tube of the rolled layer structure are fixed by the plane of the spiral finned tube The plane fixing bracket connecting plates at the end of the frame are connected and fixed to each other to ensure the vertical spacing of the adjacent two layers of spiral finned tubes, and at the same time prevent the vertical displacement of the upper and lower spiral finned tubes, and the parts are firmly fixed and are not easy to loose. Take off

The spiral finned tube in the same plane at the bottom of the spiral finned tube of the rolled layer structure is vertically sandwiched between the small bracket and the small bracket cover of the two sets of spiral finned tube plane fixing brackets arranged in parallel, the small bracket and the small bracket The bracket cover plate is inserted and fixed to ensure the fixed spacing between the spiral finned tubes in the same plane at the bottom of the spiral finned tube of the rolled layer structure, and the lateral displacement of the spiral finned tube in the same layer is prevented, and the insertion and fixing structure is simple. The processing is convenient and the installation is quick. The two sides of the spiral finned tube flat fixing frame are screwed by the same side end and the bottom fixing plate, and the corresponding spiral finned tube on each of the bottom fixed plate and the lower layer of the spiral finned tube The ends of the plane fixing frame are connected and fixed by the plane fixing frame connecting plates to ensure the vertical spacing between the bottom and the adjacent upper two layers of the spiral finned tubes, and at the same time prevent the vertical displacement of the upper and lower two layers of the spiral finned tubes, between the components It is firmly fixed and is not easy to loosen.

The small bracket is formed by punching and bending a sheet to form a trough structure, and the trough structure comprises a small bracket bottom plate, a small bracket long side reinforcing rib, a small bracket limit card symmetrically arranged along a long side of the small bracket, and an end fitting a fixing plate; the middle portion of the small bracket bottom plate is symmetrically opened with at least two slots along the longitudinal direction, the slot is for facilitating heat dissipation of the spiral fin, and the plate of the slotted portion is bent upward by 90 degrees to form a small bracket limit card, so as to The cover plate of the corresponding small bracket cover is matched with the spiral fin, and the spiral fin tube is limited in the circumferential direction of the spiral fin; the two long sides of the small bracket bottom plate are respectively bent upward with a small bracket Long side ribs to increase the bending strength of the small bracket bottom plate, and to insert the spiral ribs between the long side ribs of the small bracket to further limit the displacement of the spiral fin tube tube; the two ends of the small bracket bottom are bent upward The end inserting and fixing plate is provided, and the end inserting and fixing plate is provided with a fixing hole for fixing the upper and lower layers of the spiral finned tube by the flat fixing frame connecting plate and the screw; The sheet metal stamping forms a trough structure, which matches the small bracket size of the trough structure, and the small bracket cover plate includes a cover bottom plate, a long side reinforcing rib of the cover plate, and a cover limit for matching the small bracket limit card. The position card and the corresponding end portion are inserted into the end insertion hole of the fixing plate position; the small bracket bottom plate and the cover bottom plate are respectively contacted with the outer edges of the spiral fins of each spiral fin tube at the corresponding position in the same horizontal plane, and match The small bracket limit card and the cover limit card of the bending set form a spiral fin limit side wall, and two adjacent spiral fin limit side walls and a spiral finned tube corresponding to the same horizontal plane Spiral fin Contact, such two adjacent spiral fin limit sidewalls, small bracket bottom plate and cover bottom plate are fixed in the circumferential direction of the spiral fin of the corresponding one of the spiral finned tubes, and the small side of the same side is strengthened The ribs of the ribs and the long side of the cover plate are inserted between the spiral fins and are in contact with the adjacent spiral fins to restrict the displacement of the spiral finned tube in the direction of the spiral finned tube, and the small bracket is inserted through the end inserting and fixing plate The end of the small insertion cover is fixed to the position of the insertion hole, and the spiral fin tube is clamped and fixed between the small bracket and the small bracket cover.

The small bracket limit card and the cover limit card are respectively provided with reinforcing ribs.

The height of the long side reinforcing rib and the long side reinforcing rib of the small bracket are smaller than the radius of the spiral finned tube, so that the small bracket, the small bracket cover and the spiral finned tube are assembled, and the small bracket and the small bracket cover are assembled. There are more gaps between the plates to keep the heat dissipation of the condenser.

The bottom fixing plate is formed by punching and bending a sheet to form a right-angled structure. The right-angled surface of the right-angled structure is respectively provided with a fixing hole for the refrigerator and a limiting hole for the spiral finned tube; the bottom fixing plate passes the screw The spiral finned tube limiting hole and the fixing hole are screwed to the same side end of the spiral finned tube flat fixing frame on the same plane as the bottom of the spiral finned tube of the rolled layer structure, and the bottom fixing plate and the plane fixing frame are simultaneously fixed. The connecting plates and the corresponding spiral finned tube flat holder ends on the adjacent lower layer spiral finned tubes are fixed to each other by screws.

The beneficial effects of the present invention are as follows:

The invention solves the problem that the spiral finned tube is not tightly fixed by inserting the small bracket and the small bracket cover plate to tighten the spiral finned tube, and the screw is fixed by the combination of the small bracket and the small bracket cover. The finned tube can make the design of the bracket simpler, the stamping process and the mold of the small bracket are greatly reduced, the input cost and the processing efficiency are greatly improved; and the foundation of the small bracket strength is ensured. The width of the upper bracket and the thickness of the material can be further reduced, thereby reducing the material cost; the small bracket and the small bracket cover are inserted through the end insertion holes on the small bracket cover, and only the end fittings are bent and fixed. The end of the spiral fin tube can be fixed tightly, which improves the mounting efficiency of the bracket.

DRAWINGS

Figure 1 is a schematic view showing the overall structure of the present invention;

Figure 2 is a schematic view showing the structure of the small stent of the present invention;

Figure 3 is a schematic view showing the structure of the small bracket cover of the present invention;

4 is a cross-sectional structural view showing the spiral finned tube and the spiral finned tube flat holder of the rolled layer structure of the present invention being clamped to each other;

Fig. 5 is a schematic view showing the assembly structure of the planar spiral finned tube of the spiral finned tube plane fixing frame and the meandering serpentine structure of the present invention.

detailed description

Referring to FIG. 1 to FIG. 4, a fixed bracket fastening fin heat exchanger comprises a spiral finned tube with a rolled layer structure, seven sets of spiral finned tube flat fixing frames 2, and a flat fixing connecting plate 3 And the bottom fixing plate 4, the spiral finned tube 1 of the winding structure comprises a condensation tube 11 and a spiral fin 12 spirally wound around the condensation tube 11;

Each set of spiral finned tube plane fixing frame 2 includes a small bracket 21 and a small bracket cover 22; the small bracket 21 and the small bracket cover 22 are disposed in a direction perpendicular to the pipeline direction of the spiral finned tube, and the winding structure is The spiral finned tubes in the same plane of the upper portion of the spiral finned tube 1 are sandwiched between a set of small brackets 21 and a small bracket cover 22, and the small bracket 21 and the small bracket cover 22 are inserted and fixed, and the winding structure is The spiral finned tubes of the upper spiral spiral tube 1 are connected and fixed to each other by the plane fixing frame connecting plate 3 at the end of the spiral finned tube flat fixing frame 2;

The spiral finned tube in the same plane at the bottom of the spiral finned tube 1 of the rolled layer structure is sandwiched between the small bracket 21 and the small bracket cover 22 of the two sets of spiral finned tube plane fixing brackets 2 arranged in parallel, and the small bracket 21 and the small bracket cover 22 are inserted and fixed, the two sets of spiral finned tube plane fixing frame 2 and the bottom fixing plate 4 are screwed by screws, and each bottom fixing plate 4 and the lower layer of the spiral wing The ends of the corresponding spiral finned tube plane fixing brackets 2 on the sheet tube 1 are connected and fixed to each other by the plane fixing frame connecting plate 3.

The small bracket 21 is formed by punching and bending a sheet to form a groove structure, and the groove structure comprises a small bracket bottom plate 211, a small bracket long side reinforcing rib 212, and a small bracket limit symmetrically arranged along a long side of the small bracket. The positional card 213 and the end portion of the fixing plate 214; the middle portion of the small bracket bottom plate 211 is symmetrically opened with eight slots 2111 in the longitudinal direction, and the plate of the slotted portion is bent upward by 90 degrees to form a small bracket limit card 213; The two long sides of the bracket bottom plate 211 are respectively bent upward to have a small bracket long side reinforcing rib 212; the two ends of the small bracket bottom plate 211 are bent upward to be provided with an end insertion fixing plate 214, and the end insertion fixing plate 214 is fixed. The small bracket cover 22 is formed by sheet metal stamping, and is matched with the small bracket 21 of the slot structure. The small bracket cover 22 includes a cover bottom plate 221 and a cover long side reinforcing rib 222. And the small bracket limit card 213 is matched with the cover position limiting card 223 which is bent and disposed, and the end insertion hole 224 corresponding to the position of the end insertion fixing plate 214; the small bracket bottom plate 211 and the cover bottom plate 221 are respectively identical The outer edge of the spiral fin 12 of each spiral finned tube 1 at the corresponding position in the horizontal plane is contacted, and the small bracket limit card 213 and the cover limit card 223 which are matched with the bending arrangement are connected to form a spiral fin limit side wall. , two adjacent spiral fin limit sidewalls and corresponding positions in the same horizontal plane The outer edge of the spiral fin 12 of one spiral finned tube 1 is contacted, and the small side long side reinforcing rib 212 and the long side reinforcing rib 222 of the same side are inserted between the spiral fins 12 and are in contact with the adjacent spiral fins 12 The small bracket 21 is inserted into the end insertion hole 224 fixed to the small bracket cover 22 through the end insertion fixing plate 214, and the spiral fin tube 1 is clamped and fixed to the small bracket 21 and the small bracket cover 22 between.

The small bracket limit card 213 and the cover limit card 223 are respectively provided with reinforcing ribs 2131 and 2231.

The heights of the small bracket long side reinforcing rib 212 and the cover long side reinforcing rib 222 are smaller than the radius of the spiral finned tube 1.

The bottom fixing plate 4 is formed by punching and bending a sheet to form a right-angled structure, and the right fixing surface of the bottom fixing plate 4 of the right-angled structure is respectively provided with a fixing hole 41 for the refrigerator and a limiting hole 42 for the spiral finned tube; The fixing plate 4 is screwed through the spiral finned tube limiting hole 42 and the fixing hole 2141 through the same side end of the two sets of spiral finned tube plane fixing frame 2 on the same plane as the bottom of the spiral finned tube 1 of the rolled layer structure, At the same time, the bottom fixing plate 4, the plane fixing frame connecting plate 3, and the corresponding spiral finned tube plane fixing frame 2 on the adjacent lower layer spiral finned tubes are connected and fixed by screws.

working principle

Referring to FIG. 5, before installing the spiral finned tube plane fixing frame 2, the spiral finned tube 1 tube is first bent into a serpentine plane structure, and then the seven sets of spiral finned tube flat fixing frame 2 are perpendicular to the spiral fin. The tube tube 1 tube direction is respectively clamped on the spiral fin tube 1 of the serpentine plane structure;

Referring to FIG. 2 to FIG. 4, when the small bracket 21 and the small bracket cover 22 of a set of spiral finned tube plane fixing brackets 2 are inserted and clamped onto the spiral finned tube 1 pipeline, the small bracket bottom plate 211 faces The lower and the small bracket limit card 213 are facing upward, and the spiral finned tube 1 is placed between the two small bracket limit cards 213, and the small bracket cover 22 is covered, so that each spiral finned tube 1 is on both sides. Touch two sets of small corresponding settings The bracket limiting card 213 and the cover limiting card 223, the small bracket long side reinforcing rib 212 and the cover long side reinforcing rib 222 of the same side are inserted between the spiral fins 12 and are in contact with the adjacent spiral fins 12, and the small bracket The height of the long side reinforcing rib 212 and the long side reinforcing rib 222 of the cover plate can just limit the displacement of the spiral fin 12 in the pipe direction, and the small bracket 21 capable of matching each of the spiral finned tubes 1 in the three-dimensional direction is ensured. The small bracket cover 22 is fixed in position; the end insertion fixing plate 214 is pierced from the end insertion hole 224 of the small bracket cover, and the small bracket cover 22 is pressed downward and the end is inserted into the fixing plate 214. The end bends 90° to contact the small bracket cover, and the spiral finned tube 1 is tightly sandwiched between the small bracket 21 and the small bracket cover 22; thereby ensuring the small bracket 21 and the small bracket cover 22 After the insertion and fixing, the spiral finned tube 1 can be completely fixed in the three-dimensional direction without the hidden trouble of the front and rear displacement of the spiral finned tube, and the technical problem is solved;

Referring to FIG. 1, the spiral finned tube 1 of the serpentine plane structure holding the seven sets of spiral finned tube plane fixing frames 2 is wound and rolled to form a spiral finned tube of a rolled layer structure, the roll The spiral finned tube of the layer structure may be in a desired shape such as being rolled into a shape, an S shape, or the like;

Referring to FIG. 1, after being rolled into a desired shape, the bottom fixing plate 4 is fixed to the two sets of spiral finned tube plane fixing frames 2 at the bottom of the spiral finned tube 1 by screws, and then the planar fixing frame connecting plate 3 is passed through the screws. Fixing the bottom fixed plate and the spiral finned tube plane fixing frame 2 on the spiral finned tube 1 of the lower adjacent layer, and the end of the spiral finned tube flat fixing frame 2 of each layer of the spiral finned tube 1 is also The connecting plates 3 are connected to each other by screws and are fixed to each other to ensure the stability of the overall structure.

As described above, the present invention relates to a fixed bracket fastening fin heat exchanger, and the embodiments and figures are only preferred embodiments of the present invention, and are not limited to the present invention, and are generally related to the structure of the present invention. Approximate features and similarities should be within the scope of protection of the present invention.

Claims (5)

A fixed bracket fastening fin heat exchanger comprising a spiral finned tube (1) of a rolled layer structure, at least two sets of spiral finned tube flat fixing frames (2), a planar fixing frame connecting plate (3) and a bottom The fixing plate (4), the spiral finned tube (1) of the rolled layer structure comprises a condensing tube (11) and a spiral fin (12) spirally wound around the condensing tube (11); characterized in that: Each set of spiral finned tube plane fixing frame (2) comprises a small bracket (21) and a small bracket cover plate (22); the small bracket (21) and the small bracket cover plate (22) are arranged in a direction and a spiral finned tube The direction of the pipeline is vertical, and the spiral finned tube in the same plane in the upper part of the spiral finned tube (1) of the rolled layer structure is sandwiched between a set of small brackets (21) and a small bracket cover (22), and the small bracket (21) and the small bracket cover plate (22) is inserted and fixed, and the spiral finned tube of the rolled layer structure (1) is passed between the spiral finned tubes of the upper layer through the spiral finned tube plane fixing frame (2) The flat fixing frame connecting plates (3) are connected and fixed to each other; The spiral finned tube with the bottom of the spiral finned tube (1) in the same plane is sandwiched between the two sets of spiral finned tube flat holders (2) and the small bracket cover. Between (22), the small bracket (21) and the small bracket cover plate (22) are inserted and fixed, and the two sets of spiral finned tube plane fixing brackets (2) pass through the same side end portion and the bottom fixing plate (4). Screw screwing, each bottom fixing plate (4) and the corresponding spiral finned tube flat holder (2) on the lower spiral finned tube (1) are connected to each other by a plane fixing frame connecting plate (3) . The fixed bracket fastening fin heat exchanger according to claim 1, wherein the small bracket (21) is formed by punching and bending a sheet to form a groove structure, and the groove structure comprises a small bracket bottom plate ( 211), a small bracket long side reinforcing rib (212), a small bracket limit card (213) symmetrically disposed along a long side of the small bracket, an end insertion fixing plate (214); the small bracket bottom plate (211) middle portion At least two slots (2111) are symmetrically opened along the longitudinal direction, and the plate of the slotted portion is bent upward by 90 degrees to form a small bracket limit card (213); the two long sides of the small bracket bottom plate (211) are respectively bent upward. The small bracket long side reinforcing rib (212); the small bracket bottom plate (211) is bent upwardly with an end fitting fixing plate (214), and the end fitting fixing plate (214) is provided with a fixing hole (2141) The small bracket cover plate (22) is formed by sheet metal stamping, which is matched with the small bracket (21) of the slot structure, and the small bracket cover plate (22) includes a cover bottom plate (221) and a cover. The long side rib (222) of the board, the cover limit card (223) which is matched with the small bracket limit card (213), and the end of the corresponding end insert fixing plate (214) Mating hole (224); small bottom bracket (211) and a cover plate (221) corresponding to the same horizontal plane and the position of each respective spiral finned tubes (1) of the helical fin (12) The outer edge is contacted, and the small bracket limit card (213) and the cover limit card (223) which are matched with the bending arrangement are connected to form a spiral fin limit side wall, and two adjacent spiral fin limit side walls The outer edge of the spiral fin (12) of a spiral finned tube (1) corresponding to the position in the same horizontal plane is contacted, and the long side reinforcing rib (212) of the small side of the same side and the long side reinforcing rib (222) of the cover are inserted. The spiral fins (12) are in contact with the adjacent spiral fins (12), and the small brackets (21) are inserted through the end fitting fixing plates (214) to be fixed at the end of the small bracket cover (22). At the position of the hole (224), the spiral finned tube (1) is clamped and fixed between the small bracket (21) and the small bracket cover (22). The fixed bracket fastening fin heat exchanger according to claim 2, wherein the small bracket limit card (213) and the cover limit card (223) are respectively provided with reinforcing ribs (2131) ), ribs (2231). The fixed bracket fastening fin heat exchanger according to claim 2, wherein the height of the small side rib (212) and the long side rib (222) of the small bracket are smaller than that of the spiral wing The radius of the piece tube (1). The fixed bracket fastening fin heat exchanger according to claim 2, wherein the bottom fixing plate (4) is formed by punching and bending a sheet to form a right angle type structure, and the bottom fixing plate of the right angle type structure (4) Two right-angle faces are respectively provided with a fixing hole (41) for the refrigerator and a limiting hole (42) for the spiral finned tube; the bottom fixing plate (4) passes through the screw-finned hole of the spiral fin tube (42) And the fixing holes (2141) and the two sets of spiral finned tube plane fixing frames (2) on the same plane as the bottom of the spiral-shaped finned tube (1) of the rolled layer are screwed together, and the bottom fixing plate (4), The flat fixing frame connecting plate (3) and the corresponding spiral finned tube flat fixing frame (2) on the adjacent lower layer spiral finned tubes are fixed to each other by screws.

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