CN112229240A

CN112229240A - Low-temperature heating radiating tube and radiator

Info

Publication number: CN112229240A
Application number: CN202011296535.XA
Authority: CN
Inventors: 王义堂
Original assignee: Beijing Pioneer Radiator Co ltd
Current assignee: Beijing Pioneer Radiator Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-01-15

Abstract

The invention provides a low-temperature heating radiating pipe and a radiator, wherein the low-temperature heating radiating pipe comprises: the annular sleeve comprises an inner pipe and an outer pipe, and an annular gap between the inner pipe and the outer pipe forms a water passing channel of the heating medium water; the radial inner part of the annular sleeve is a hollow cavity with an opening at the top and the bottom, so that air can enter the annular sleeve from the bottom of the hollow cavity and is discharged from the top of the hollow cavity after absorbing heat, and a chimney effect for air flowing is formed. Through the annular clearance in the annular sleeve, the heat medium water can outwards dispel the heat through inner tube and outer tube in the annular sleeve simultaneously, has effectively improved the heat transfer area of cooling tube. The hollow cavity in the radial inner part of the annular sleeve effectively forms a convection channel of air, enhances the chimney effect of the air flowing in the annular sleeve, enables the air to fully absorb the heat in the heat medium water, and is more suitable for the heating environment using low-temperature heat medium water as a heat transfer medium.

Description

Low-temperature heating radiating tube and radiator

Technical Field

The invention relates to the field of radiators, in particular to a low-temperature heating radiating pipe and a radiator.

Background

The radiator is used as a terminal device for heating, the heat source is generally urban central heating, a district self-built boiler room, a household wall-mounted furnace and the like, heat is emitted through heat conduction, radiation and convection, and the temperature of a room is raised.

At present, the known heating radiating fins are all of a column structure, a water passage for flowing of heating medium water is arranged in a pipe column, and a plurality of pipe columns are connected between an upper fin head and a fin head of each radiating fin to form an integral radiator structure. By compactly arranging the pipe columns on the radiating fins, the overall dimension is reduced, and the circulation of the heating medium water in the radiating fins is improved.

However, in the prior art, the convection heat transfer of air between the pipe columns is not fully considered, and the higher and higher heating requirements cannot be met only from the angle of heat radiation and dissipation outside the radiator. In addition, in low temperature heating, when the heat radiation temperature of the heat medium water is low, it is difficult to effectively raise the indoor living temperature even if the circulation amount is increased, and how to more sufficiently release the heat in the heat medium water in low temperature heating is a problem to be solved.

Disclosure of Invention

In view of the problems in the prior art, an object of the present invention is to provide a low temperature heating radiating pipe, which has a simple structure and a large radiating area, and can effectively convect air on the radiating pipe and form a chimney effect, thereby enhancing the circulation of hot air indoors and making full use of heat in low temperature heating medium water.

In order to achieve the above object, the present invention provides a low temperature heating radiating pipe, including: the annular sleeve comprises an inner pipe and an outer pipe, and an annular gap between the inner pipe and the outer pipe forms a water passing channel of the heating medium water;

the radial inner part of the annular sleeve is a hollow cavity with an opening at the top and the bottom, so that air can enter the annular sleeve from the bottom of the hollow cavity and is discharged from the top of the hollow cavity after absorbing heat, and a chimney effect for air flowing is formed.

Further, the upper side and the lower side of the annular sleeve are respectively provided with an upper water opening and a lower water opening of the heating medium water, and the upper water opening and the lower water opening are communicated with the annular gap.

Further, the annular sleeve is vertically installed, and the upper water gap and the lower water gap are horizontally connected to the side wall of the outer pipe.

Further, the inner pipe and the outer pipe are both metal thin-walled pipes, and the thickness of each metal thin-walled pipe is not more than 3 mm.

Further, the inner pipe and the outer pipe are concentrically arranged, and the annular sleeve is in a ring shape, an elliptical ring shape or a square ring shape.

Furthermore, the inner side wall of the inner pipe and the outer side wall of the outer pipe are both connected with fins for increasing the heat dissipation area, and the cross sections of the fins are T-shaped.

Further, the fins extend vertically and penetrate in the height direction of the annular sleeve.

A radiator comprises the low-temperature heating radiating pipe, and a plurality of radiating pipes are connected into an integral structure through welding or wire matching.

Furthermore, the water feeding ports are connected in phase sequence to form a water feeding channel positioned at the top of the radiator; and the water outlets are connected in phase sequence to form a water drainage channel at the bottom of the radiator.

According to the low-temperature heating radiating tube, the water passing channel of the heating medium water in the radiating tube is formed through the annular gap in the annular sleeve, the heating medium water can be simultaneously radiated outwards through the inner tube and the outer tube in the annular sleeve, and the heat exchange area of the radiating tube is effectively increased.

The hollow cavity in the radial inner part of the annular sleeve effectively forms a convection channel of air, so that the chimney effect of the air flowing in the annular sleeve is enhanced, and the air can fully absorb the heat in the heat medium water; in addition, vertical T-shaped fins are additionally arranged on the inner side wall and the outer side wall of the annular sleeve, so that the heat dissipation area is effectively increased, and a chimney is formed in the hollow cavity in the radial inner part of the annular sleeve again through the sealing effect of the T-shaped fins, so that the air convection heat dissipation is enhanced. In general, the heat dissipation efficiency is improved greatly, and the heat dissipation device is more suitable for the heating environment with low-temperature heat medium water as a heat transfer medium.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a low temperature heating radiating pipe according to the present invention;

FIG. 2 is a side view of the structure of FIG. 1;

FIG. 3 is a schematic top view of the structure of FIG. 1;

fig. 4 is a schematic structural view of the heat sink of the present invention.

Description of the drawings:

1-outer pipe, 2-inner pipe, 3-annular gap, 31-top opening, 32-bottom opening, 4-outer pipe fin, 5-inner pipe fin, 6-upper nozzle and 7-lower nozzle.

Detailed Description

In the description of the present invention, it is to be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only used for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In order to more clearly illustrate the technical solution of the present invention, the following description is made in the form of specific embodiments.

As shown in fig. 1 to 3, the low temperature heating radiating pipe according to the present invention includes: the annular sleeve comprises an inner pipe 2 and an outer pipe 1, and an annular gap 3 between the inner pipe 2 and the outer pipe 1 forms a water passing channel of the heating medium water; the radial inner part of the annular sleeve is a hollow cavity with an opening at the top and the bottom, so that air can enter the annular sleeve from the bottom of the hollow cavity and is discharged from the top of the hollow cavity after absorbing heat, and a chimney effect for air flowing is formed.

According to the low-temperature heating radiating tube, the annular gap 3 on the annular sleeve forms a water passing channel of the heat medium water, the heat medium water is introduced into the hot water interlayer between the inner tube 2 and the outer tube 1, the heat of the heat medium water can be transferred to the inner tube 2 and the outer tube 1 in a heat conduction mode, and the heat is radiated outwards through the inner side wall of the inner tube 2 and the outer side wall of the outer tube 1, so that the radiating area of the radiating tube is effectively increased, and the utilization rate of the heat in the heat medium water is increased.

The bidirectional columnar heat radiating surface formed by the inner side wall of the inner pipe 2 and the outer side wall of the outer pipe 1 greatly improves the heat exchange area of the heat radiating pipe, so that the heat radiating effect is obviously improved; the heat medium water is directly contacted with the side walls of the inner pipe 2 and the outer pipe 1, so that the thermal resistance generated in heat conduction is reduced, and the integral heat dissipation efficiency is effectively improved; through the internal and external heat dissipation of the annular sleeve in the radial direction, the heat utilization rate of the heat medium water is greatly enhanced, the heat energy in the heat medium water can be fully utilized, and the technical purposes of energy conservation and emission reduction are achieved.

The top and bottom of the hollow cavity in the radial inner part of the annular sleeve are both open structures, and the top opening 31 and the bottom opening 32 are specifically arranged at the top and bottom of the inner tube 2. The low temperature air enters the annular sleeve from the bottom opening 32 of the hollow cavity, is heated up in the hollow cavity, rises slowly with the gradual rise of temperature, and is discharged into the room from the top opening 31, so as to form a chimney effect of air flow.

Through the chimney effect that constitutes, be favorable to the convection current heat transfer of hot flow air on the cooling tube, combine the abundant release of heat in the heat medium aquatic on the annular sleeve, can be with the heat high-efficient from the heat medium water transfer to the air in to make the indoor air be in the state of circulation all the time, the room is maintained in comparatively comfortable temperature all the time in winter, has effectively improved user's living environment.

In one embodiment, the annular sleeve is vertically installed, the upper water inlet 6 and the lower water inlet 7 for supplying the heating medium water to the radiating pipe are respectively arranged at the upper side and the lower side of the annular sleeve, and the upper water inlet 6 and the lower water inlet 7 are both communicated with the water passage of the annular gap 3. In the embodiment, each radiating pipe comprises two upper water gaps 6 and two lower water gaps 7 respectively, specifically, the two upper water gaps 6 are arranged at the top of the annular sleeve and are specifically connected to the side wall of the outer pipe 1, and the two upper water gaps 6 are arranged on the same straight line, so that the water feeding of the heating medium water in the same direction can be ensured; two water gaps 7 are arranged at the bottom of the annular sleeve and are also connected to the side wall of the outer pipe 1, and the two water gaps 7 are arranged on the same straight line, so that the water outlet of the heating medium water in the same direction can be ensured. Through the arrangement mode, the heat medium water can be in a full state in the interlayer of the annular sleeve, the contact between the heat medium water and the annular sleeve is effectively guaranteed, and the annular sleeve is further in a good heat dissipation state all the time.

In this embodiment, the heat in the heat medium water is firstly transferred to the inner tube 2 and the outer tube 1 in a heat conduction manner, then the heat is transferred from the side wall close to the interlayer to the side wall far away from the interlayer through the wall thickness of the inner tube 2 and the outer tube 1, and finally the heat is radiated outwards in a heat radiation manner. In order to further reduce the thermal resistance generated in the heat conduction process, the inner pipe 2 and the outer pipe 1 are made of metal thin-wall pipes, and the metal thin-wall pipes with smaller wall thicknesses can effectively reduce the thermal resistance generated in the heat conduction process, improve the heat conductivity coefficient and fully release the heat in the heat medium water. The metal thin-wall pipe with the thickness not more than 3mm is preferably selected, and the metal pipe is preferably a copper pipe, an aluminum alloy pipe or a cast iron pipe with higher heat transfer coefficient, so that the technical aims of reducing the thermal resistance and improving the heat transfer efficiency in the embodiment can be achieved.

In another embodiment, the inner pipe 2 and the outer pipe 1 are concentrically arranged, the annular gap 3 between the inner pipe 1 and the outer pipe 1 forms a hot water jacket of the radiating pipe, and the top and bottom ends of the hot water jacket are welded with annular flat plates or arc bent plates with annular structures, so that the hot water jacket is completely wrapped into a sealed space of hot medium water. Through this kind of mode of setting, guaranteed the full state of being full of heat medium water in hot water jacket, effectively improved the area of contact and the heat dissipation capacity of heat medium water and cooling tube. It should be noted that the annular sleeve may be shaped as a circular ring as shown in fig. 3, or may be shaped as an elliptical ring or a square ring according to actual conditions, and the technical requirements for increasing the contact area and the heat dissipation capacity of the heat medium water can be met.

From the angle that improves heat radiating area, all be connected with the fin that is used for increasing heat radiating area on the inside wall of inner tube 2 and the lateral wall of outer tube 1 in this embodiment, specifically, the fin is for the metal fin that is T shape along the vertical extension of cooling tube and cross section, and run through in the whole direction of height of annular casing, the heat radiation structure of the inside and outside both sides in the radial direction of cooling tube has been constituted, the heat in the heat medium aquatic transmits fin and the fin on the outer tube lateral wall on the inside wall of inner tube simultaneously through heat-conducting form, and make the heat from the fin to external loss through heat radiating form, can follow the at utmost and improve the thermal utilization ratio of hot medium water.

The inner tube fins 5 located on the radial inner side of the annular sleeve increase the contact area between the convection air and the radiating tube body structure, so that the absorbed heat can be obviously promoted.

The outer tube fins 4 positioned on the radial outer side of the annular sleeve increase the external heat dissipation capacity of the heat dissipation tube, and effectively ensure the whole heat dissipation capacity of the heat dissipation tube.

In addition, the inner tube fins 5 also provide a chimney effect for the air to flow within the hollow chamber, and in particular, the hollow chamber provides an integral chimney effect for the tube, allowing low temperature air to enter the tube from the bottom of the hollow chamber and exit the tube from the top. The T-shaped configuration of the inner tube fins 5 further forms a closed structure between the fins and the radiator tube and between adjacent fins. A part of air in the hollow cavity is slowly lifted along the gap between the fin and the radiating pipe in the process of gradually increasing the temperature, and a chimney effect of air flowing between the fin and the radiating pipe is formed; the other part of the air is slowly lifted along the gap formed by the adjacent fins in the process of gradually increasing the temperature, and a chimney effect of air flowing between the adjacent fins is formed. From this angle, cavity and inner tube fin can be in coordination with each other, from the maximum enhancement air convection effect on the cooling tube, have greatly improved the radiating effect of current fin.

In the existing structure capable of forming the chimney effect, in order to reduce airflow resistance, the airflow channel is generally in a straight-through structure, and the blockage of the airflow caused by an additional internal structure is reduced through the straight-through form. The fins positioned in the hollow cavity can further improve the flowing state of air on the basis of improving the heat dissipation area and the heat dissipation capacity, and fundamentally enhance the convection heat transfer effect of the air.

It is important to point out that the low-temperature heating radiating pipe of the invention effectively increases the radiating area without losing the circulation of the heat medium water in the radiating pipe, and the hollow cavity inside the annular sleeve can improve the convection heat transfer of the indoor air, fully releases the heat in the heat medium water to the indoor air, and is particularly suitable for the radiating working condition of the low-temperature heat medium.

Referring to fig. 4, the present invention also provides a radiator, which comprises the low temperature heating radiating pipe, wherein a plurality of radiating pipes are welded or screwed to form an integral structure.

In the manufacturing process of the radiator, the water feeding ports of the radiating pipes are connected in sequence to form a horizontally extending water feeding channel positioned at the top of the radiator; the water outlet of each radiating pipe is connected in sequence to form a horizontally extending water outlet channel positioned at the bottom of the radiator; through the formed water feeding channel and the water discharging channel, the heat medium water can be in a full state in the radiating pipe, and the integral radiating capacity of the radiator is greatly improved.

It should be noted that, in the present invention, the plurality of heat dissipation pipes are connected to form a group of heat dissipation pipe columns, each heat sink may be a group of heat dissipation pipe columns which are separately arranged, or a plurality of groups of heat dissipation pipe columns may be combined into one heat sink in a serial or parallel manner, which is not described herein again.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low temperature heating cooling tube, its characterized in that includes: the annular sleeve comprises an inner pipe and an outer pipe, and an annular gap between the inner pipe and the outer pipe forms a water passing channel of the heating medium water;

2. The pipe as claimed in claim 1, wherein the annular sleeve has an upper and a lower water inlet for the heating medium respectively disposed at the upper and lower sides thereof, and the upper and lower water inlets are communicated with the annular gap.

3. The pipe as claimed in claim 2, wherein the annular sleeve is vertically installed, and the upper and lower ports are horizontally connected to the sidewall of the outer pipe.

4. The cooling pipe for low temperature heating as claimed in claim 1, wherein the inner pipe and the outer pipe are both metal thin wall pipes, and the thickness of the metal thin wall pipe is not more than 3 mm.

5. The pipe of claim 1, wherein the inner pipe and the outer pipe are concentrically arranged, and the annular sleeve is circular, elliptical or square.

6. The low temperature heating radiating pipe according to any one of claims 1 to 5, wherein fins for increasing a heat radiating area are connected to both the inner sidewall of the inner pipe and the outer sidewall of the outer pipe, and the cross section of the fins is T-shaped.

7. The pipe of claim 6 wherein the fins extend vertically and extend through the height of the annular sleeve.

8. A radiator comprising the pipe for radiating heat in a low temperature heating as claimed in any one of claims 1 to 7, wherein a plurality of said pipes are joined into a unitary structure by welding or twinning.

9. The radiator according to claim 8, wherein said water supply ports are connected in sequence to form a water supply channel at the top of said radiator; and the water outlets are connected in phase sequence to form a water drainage channel at the bottom of the radiator.