Spiral louver shaped condenser with multilayer spatial structure

Abstract

A spiral louver shaped condenser includes fins and a refrigeration pipe. The fins are spirally wound about the refrigeration pipe and integrally formed by stamping a strip-shaped sheet material, at least including first heat-absorbing and heat-radiating bodies and second heat-absorbing and heat-radiating bodies. Broken lines are arranged between adjacent heat-absorbing and heat-radiating bodies, and each heat-absorbing and heat-radiating body forms a wavy structure. Relative wave crests and wave troughs are formed at each broken line between the adjacent heat-absorbing and heat-radiating bodies, wherein the crests and troughs form a honeycomb structure together. The wavy edges of the first heat-absorbing and heat-radiating bodies make contact with the outer wall of the refrigeration pipe at equal screw pitches.

Claims

1. A spiral louver shaped condenser with a multilayer spatial structure, comprising fins and a refrigerating tube around which the fins are spirally wrapped at a constant pitch on an outer wall of the refrigerating tube, wherein the fins are integrally formed by stamping strip-shaped sheets; the fins comprise multiple heat absorbing and heat-radiating bodies, including at least a first heat-absorbing and heat-radiating body and a second heat-absorbing and heat-radiating body; each heat-absorbing and heat-radiating body forms a wave structure; a relative wave crest and a relative wave trough are formed between the adjacent heat-absorbing and heat-radiating bodies; the wave crests and wave troughs formed between adjacent heat-absorbing and heat-radiating bodies form a honeycomb structure together; a wavy edge of the first heat-absorbing and heat-radiating body makes contact with the outer wall of the refrigerating tube in a spiral wrapping manner at a constant pitch; and a perpendicular distance from a wave crest level of the second heat-absorbing and heat-radiating body to a wave trough level of the first heat-absorbing and heat-radiating body is greater than a perpendicular distance from a wave crest level of the first heat-absorbing and heat-radiating body to a wave trough level of the first heat-absorbing and heat-radiating body.

2. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the perpendicular distance from the wave crest level of the second heat-absorbing and heat-radiating body to the wave trough level of the first heat-absorbing and heat-radiating body is up to 3 times of the perpendicular distance from the wave crest level of the first heat-absorbing and heat-radiating body to the wave trough level of the first heat-absorbing and heat-radiating body.

3. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the width of the fins is 3 mm to 20 mm.

4. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the thickness of the fins is 0.1 mm to 0.5 mm.

5. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the pitch of the fins on the refrigerating tube is 3 mm to 20 mm.

6. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the tube diameter of the refrigerating tube is 4 mm to 10 mm.

7. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the thickness of the tube wall of the refrigerating tube is 0.4 mm to 1 mm.

8. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

9. The spiral louver shaped condenser with a multilayer spatial structure according to claim 2, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

10. The spiral louver shaped condenser with a multilayer spatial structure according to claim 3, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

11. The spiral louver shaped condenser with a multilayer spatial structure according to claim 4, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

12. The spiral louver shaped condenser with a multilayer spatial structure according to claim 5, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

13. The spiral louver shaped condenser with a multilayer spatial structure according to claim 6, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

14. The spiral louver shaped condenser with a multilayer spatial structure according to claim 7, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

15. The spiral louver shaped condenser with a multilayer spatial structure according to claim 1, the fins further comprising: at least a third heat-absorbing and heat-radiating body.

16. The spiral louver shaped condenser with a multilayer spatial structure according to claim 15, wherein: a perpendicular distance from a wave crest level of the third heat-absorbing and heat-radiating body to a wave trough level of the second heat-absorbing and heat-radiating body is greater than a perpendicular distance from a wave crest level of the second heat-absorbing and heat-radiating body to a wave trough level of the second heat-absorbing and heat-radiating body.

17. The spiral louver shaped condenser with a multilayer spatial structure according to claim 15, wherein: the perpendicular distance from a wave crest level of the third heat-absorbing and heat-radiating body to a wave trough level of the second heat-absorbing and heat-radiating body is at most 1.5 times of the perpendicular distance from a wave crest level of the second heat-absorbing and heat-radiating body to a wave trough level of the second heat-absorbing and heat-radiating body.

18. The spiral louver shaped condenser with a multilayer spatial structure according to any of claim 15, wherein: the refrigerating tube is a copper tube and the fins are a copper sheet, or the refrigerating tube is a steel tube and the fins are a steel sheet, or the refrigerating tube is an aluminum tube and the fins are an aluminum sheet, or the refrigerating tube is a copper tube and the fins are an aluminum sheet, or the refrigerating tube is a steel tube and the fins are an aluminum sheet.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) The specific embodiments of the present invention will be further described below in detail in conjunction with the accompanying drawings.

(2) FIG. 1 shows a schematic diagram of an integral structure of the present invention;

(3) FIG. 2 shows a structural schematic diagram of a sheet before fins are stamped in embodiment 1 of the present invention;

(4) FIG. 3 shows a stereographic structural schematic diagram of fins in embodiment 1 of the present invention;

(5) FIG. 4 shows a sectional structural schematic diagram of fins in embodiment 1 of the present invention;

(6) FIG. 5 shows a stereographic structural schematic diagram of fins in another embodiment of the present invention;

(7) FIG. 6 shows a schematic diagram of an integral structure of another embodiment of the present invention;

(8) FIG. 7 shows a contrast change chart of outlet temperature for embodiment 1, reference example 1 and reference example 2 of the present invention; and

(9) FIG. 8 shows a contrast change chart of a temperature difference between an inlet and an outlet for embodiment 1, reference example 1 and reference example 2 of the present invention.

DETAILED DESCRIPTION

(10) To describe the present invention more clearly, the present invention is further described below in combination with the preferred embodiments and the drawings. Those skilled in the art should understand that the contents which are specifically described below are illustrative, rather than restrictive, and shall not be regarded as limiting the protection scope of the present invention.

Embodiment 1

(11) With reference to FIG. 1 to FIG. 4, a spiral louver shaped condenser with a multilayer spatial structure comprises fins 1 and a refrigerating tube 2 around which the fins 1 are spirally wrapped at a constant pitch on the outer wall. The fins 1 are integrally formed by stamping strip-shaped sheets; the fins 1 comprise at least first heat-absorbing and heat-radiating body 11 and second heat-absorbing and heat-radiating body 12; broken lines 3 are arranged between adjacent heat-absorbing and heat-radiating bodies bodies 11, 12; each heat-absorbing and heat-radiating body forms a wave structure; a relative wave crest 111 and a wave trough 121 are formed at each broken line 3 between adjacent heat-absorbing and heat-radiating bodies 11, 12; the wave crests and wave troughs formed at all the broken line 3 between adjacent heat-absorbing and heat-radiating bodies 11, 12 form a honeycomb structure together; the wavy edge of the first heat-absorbing and heat-radiating body 11 contacts the outer wall of the refrigerating tube 2 in a spiral wrapping manner at a constant pitch; and a perpendicular distance from a wave crest 122 level of the second heat-absorbing and heat-radiating body 12 to a wave trough 112 level of the first heat-absorbing and heat-radiating body 11 is greater than a perpendicular distance from a wave crest 111 level of the first heat-absorbing and heat-radiating body 11 to a wave trough 112 level of the first heat-absorbing and heat-radiating body 11.

(12) The perpendicular distance from the wave crest 122 level of the second heat-absorbing and heat-radiating body 12 to the wave trough 112 level of the first heat-absorbing and heat-radiating body 11 is 1.5 times of the perpendicular distance from the wave crest 111 level of the first heat-absorbing and heat-radiating body 11 to the wave trough 112 level of the first heat-absorbing and heat-radiating body 11.

(13) The width of the fins 1 is 6 mm and the thickness of the fins 1 is 0.3 mm.

(14) The pitch of the fins 1 on the refrigerating tube 2 is 6 mm.

(15) The tube diameter of the refrigerating tube 2 is 7 mm and the thickness of the tube wall of the refrigerating tube 2 is 0.7 mm.

(16) The refrigerating tube 2 is a steel tube and the fins 1 are an aluminum sheet.

Embodiment 2

(17) With reference to FIG. 5 to FIG. 6 which show a spiral louver shaped condenser with a multilayer spatial structure. The difference between embodiment 2 and embodiment 1 is that the fins 1 comprise a first heat-absorbing and heat-radiating body 11, a second heat-absorbing and heat-radiating body 12 and a third heat-absorbing and heat-radiating body 13; the wavy edge of the first heat-absorbing and heat-radiating body 11 contacts the outer wall of the refrigerating tube 2 in a spiral wrapping manner at a constant pitch; a perpendicular distance from a wave crest 131 level of the third heat-absorbing and heat-radiating body 13 to a wave trough 121 level of the second heat-absorbing and heat-radiating body 12 is greater than a perpendicular distance from a wave crest 122 level of the second heat-absorbing and heat-radiating body 12 to a wave trough 121 level of the second heat-absorbing and heat-radiating body 12; and a perpendicular distance from a wave crest 122 level of the second heat-absorbing and heat-radiating body 12 to a wave trough 112 level of the first heat-absorbing and heat-radiating body 11 is greater than a perpendicular distance from a wave crest 111 level of the first heat-absorbing and heat-radiating body 11 to a wave trough 112 level of the first heat-absorbing and heat-radiating body 11.

(18) A perpendicular distance from a wave crest 131 level of the third heat-absorbing and heat-radiating body 13 to a wave trough 121 level of the second heat-absorbing and heat-radiating body 12 is 1.5 times of a perpendicular distance from a wave crest 122 level of the second heat-absorbing and heat-radiating body 12 to a wave trough 121 level of the second heat-absorbing and heat-radiating body 12; and a perpendicular distance from a wave crest 122 level of the second heat-absorbing and heat-radiating body 12 to a wave trough 112 level of the first heat-absorbing and heat-radiating body 11 is 2 times of a perpendicular distance from a wave crest 111 level of the first heat-absorbing and heat-radiating body 11 to a wave trough 112 level of the first heat-absorbing and heat-radiating body 11.

(19) The width of the fins 1 is 8 mm and the thickness of the fins 1 is 0.4 mm.

(20) The pitch of the fins 1 on the refrigerating tube 2 is 8 mm.

(21) The tube diameter of the refrigerating tube 2 is 8 mm and the thickness of the tube wall of the refrigerating tube 2 is 0.8 mm.

(22) The refrigerating tube 2 is a copper tube and the fins 1 are an aluminum sheet.

REFERENCE EXAMPLE 1

(23) Embodiment 1 of a Chinese patent application number 201210255460.X is used as a reference example 1.

REFERENCE EXAMPLE 2

(24) The refrigerating tube is bent at the same level into a serpentuator. At the same side as the vertical direction of a serpentuator pipeline, multiple metal wires are welded at equal distances. The serpentuator welded with the metal wires is bent into a square cylindrical body to form a fiber tube coiled condenser, as a reference example 2.

(25) Experiment Results and Analysis

(26) Test Conditions

(27) No. 1 heat exchanger is a heat exchanger of the present embodiment 1; No. 2 heat exchanger is a heat exchanger of the present reference example 1; and No. 3 heat exchanger is a heat exchanger of the present reference example 2. Three heat exchangers have the same pipeline length and state.

(28) Through configuration test software, ambient temperature is kept at 25 C.0.5 C.; the temperature of a water tank is below 73 C.; and by using water as a medium, the performance of three heat exchangers is tested. Under the condition that the temperature of the water tank reaches up to 73 C., the inlet temperature of No. 1 to No. 3 heat exchangers is 61 C.0.8 C.; inlet and outlet temperature of the heat exchanger of a system test bed is respectively measured after three different heat exchanger products are installed; the experiment data are detected and recorded; and the experiment results are contrasted, calculated and analyzed.

(29) The experiment results of No. 1 heat exchanger, No. 2 heat exchanger and No. 3 heat exchanger are as follows:

(30) With reference to FIG. 7 to FIG. 8, it can be known from the contrast chart of outlet temperature that from No. 1 heat exchanger, No. 2 heat exchanger and No. 3 heat exchanger the outlet temperature of the heat exchangers is from low to high. The higher the outlet temperature is, the smaller the temperature difference is, and the smaller the heat transfer amount is, the poorer the heat exchange effect is. It is known from the contrast chart of the temperature difference between an inlet and an outlet that No. 1 heat exchanger has the maximum heat exchange temperature difference between the inlet and the outlet, the second is No. 2 heat exchanger and the third is No. 3 heat exchanger. Therefore, No. 1 heat exchanger, i.e., the spiral louver shaped condenser with a multilayer spatial structure of the present invention, has the best heat exchange effect; the second is No. 2-ordinary coiled spiral fin condenser; and the third is No. 3-fiber tube coiled condenser.

(31) It is apparent that the above embodiments of the present invention are merely examples given for clearly illustrating the present invention, not for limiting the embodiments of the present invention. For those ordinary skilled in the art, different forms of other variations or changes can also be made based on the above description. The embodiments are not exhaustive herein. Apparent variations or changes derived from the technical solution of the present invention still belong to the protection scope of the present invention.