CN209763519U - Horizontal drop heat conduction pipe for solar water heater - Google Patents

Abstract

The utility model relates to a horizontal drop heat pipe for a solar water heater, which belongs to a solar heat pipe, and comprises a pipe body and a heat exchange medium sealed in the pipe body, wherein the pipe body consists of a heat absorption section, an inclined section and a condensation section, one end of the inclined section is connected with the heat absorption section, and the other end is connected with the condensation section; grooves or fins are arranged on the inner wall of the tube body of the heat absorption section. The utility model discloses practice thrift space, simple to operate, heat exchange efficiency height.

Description

Horizontal drop heat conduction tube for solar water heater

technical field

The utility model relates to a solar heat conduction pipe, in particular to a horizontal drop heat conduction pipe for a solar water heater.

Background technique

In order to ensure the smooth return of the heat exchange medium, the heat pipes used in traditional solar water heaters are placed obliquely, and the heat pipes must be installed at a certain angle. Not only does it take up space, but it is also not very convenient for the installation of high-rise buildings. At the same time, the contact area between the heat exchange medium and the heat pipe is small, and the heat exchange efficiency is low.

Contents of the invention

The technical problem to be solved by the utility model is to provide a horizontal drop heat pipe for solar water heaters, which has the advantages of saving space, convenient installation, and high heat exchange efficiency.

The technical problem to be solved by the utility model is achieved through the following technical solutions: the utility model is a horizontal drop heat conduction tube for a solar water heater, which includes a tube body and a heat exchange medium sealed in the tube body, and is characterized in that: The pipe body is composed of a heat absorbing section, an inclined section and a condensing section, one end of the inclined section is connected with the heat absorbing section, and the other end is connected with the condensing section; the inner wall of the heat absorbing section is provided with grooves or fins .

The above-mentioned horizontal drop heat pipe for solar water heaters has a further preferred technical solution: the grooves are provided with several grooves, and each groove is arranged in a spiral shape and evenly distributed on the cross-section of the heat-absorbing section.

The above-mentioned horizontal drop heat pipe for solar water heaters has a further preferred technical solution as follows: the cross section of the groove is trapezoidal, and the groove depth is 0.5 mm to 0.8 mm.

The above-mentioned horizontal drop heat pipe for solar water heaters has a further preferred technical solution: there are several fins, and the fins are evenly distributed on the inner wall of the pipe in the heat-absorbing section.

A further preferable technical solution of the above-mentioned horizontal drop heat pipe for solar water heaters is: the width of the fins is 0.8 mm to 1.0 mm.

A further preferable technical solution of the above-mentioned horizontal drop heat pipe for solar water heaters is: the inclination angle of the inclined section is 40°-50°.

A further preferable technical solution of the above-mentioned horizontal drop heat pipe for solar water heaters is: the length of the inclined section in the horizontal direction is 80 mm to 100 mm.

A further preferred technical solution of the above-mentioned horizontal drop heat pipe for solar water heaters is: the diameter of the pipe body is 8 mm to 10 mm.

Compared with the prior art, the utility model has the following beneficial effects:

(1) The utility model can connect the heat-absorbing section and the condensing section by setting an inclined section, so that the heat-conducting pipe can be installed at a small angle or horizontally, which saves space and is easy to install; the inner wall of the heat-absorbing section is provided with grooves or fins, which can Improve heat transfer efficiency.

(2) The utility model further improves the heat exchange efficiency by providing a number of uniformly distributed spiral grooves or uniformly distributed fins through a further optimized technical solution.

(3) The utility model sets the angle of the inclined section at 40°~50° through a further optimized technical solution, which is convenient for the reflux of the heat exchange medium.

(4) The utility model sets the horizontal length of the inclined section at 80 mm to 100 mm through a further optimized technical solution to improve the backflow effect.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is a cross-sectional view of the heat-absorbing section when the inner wall of the pipe is provided with grooves;

Fig. 3 is a cross-sectional view of the heat-absorbing section when the inner wall of the pipe is provided with fins;

Fig. 4 is a schematic diagram of the utility model installed on the hot water storage tank.

In the figure: 1—heat absorbing section, 2—inclined section, 3—condensing section, 4—groove, 5—fin, 6—heat absorbing fin, 7—glass vacuum tube 7, 8—hot water storage tank.

Detailed ways

The specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can further understand the utility model, without constituting a limitation on its rights.

Embodiment 1: Referring to Fig. 1 and Fig. 4, a horizontal drop heat conduction pipe for a solar water heater includes a pipe body and a heat exchange medium sealed in the pipe body, and the pipe body is composed of a heat-absorbing section 1, an inclined section 2 and a condensation section 3, one end of the inclined section 2 is connected to the heat absorbing section 1, and the other end is connected to the condensing section 3; the inner wall of the tube of the heat absorbing section 1 is provided with a groove 4.

The heat pipe is installed in the glass vacuum tube 7 through the heat-absorbing fin 6 and makes the condensation section 3 extend out of the glass vacuum tube 7. The three as a whole are installed on the hot water storage tank 8 at a small angle or horizontally as a solar heat collection tube, so that the condensation section 3 It is higher than the heat absorbing section 1 and makes the condensing section 3 extend into the hot water storage tank 8 . Compared with the traditional heat pipe installation method, this installation method saves installation space and is more convenient to install.

The working principle of the heat pipe is as follows: the glass vacuum tube 7 absorbs sunlight energy and converts it into heat energy, and transmits it to the heat pipe through the heat-absorbing fin 6 . The heat exchange medium is initially in a liquid state, absorbs heat in the heat-absorbing section 1 and evaporates into a gaseous state, and the gaseous heat exchange medium rises to the condensation section 3 through the inclined section 2 . The gaseous heat exchange medium releases heat in the condensation section 3 and condenses to become liquid, and the released heat is used to heat the cold water in the hot water storage tank 8 . The liquid heat exchange medium flows through the inclined section 2, and the gravitational potential energy generated by the height difference is converted into kinetic energy, so that the heat exchange medium flows back to the heat absorption section 1.

The inner wall of the tube of the heat-absorbing section 1 is provided with a groove 4 to increase the heat exchange area between the heat exchange medium and the tube wall, thereby improving the heat exchange efficiency.

Embodiment 2: In the horizontal drop heat pipe for solar water heaters described in Embodiment 1, except that the fins 5 are arranged on the inner wall of the tube of the heat-absorbing section 1, the rest is the same as that of Embodiment 1.

The fins 5 can also increase the contact area and improve the heat exchange effect.

Embodiment 3: Referring to FIG. 2, in the horizontal drop heat pipe for a solar water heater described in Embodiment 1, there are eight grooves 4, and each groove 4 is arranged in a spiral shape and placed in the heat-absorbing section. 1 evenly distributed on the cross-section; the cross-section of the groove 4 is trapezoidal, and the groove depth is 0.5mm.

Eight evenly distributed spiral grooves 4 increase the heat-absorbing area of the heat-exchanging medium in the entire heat-absorbing section 1 and further improve heat-exchanging efficiency.

Embodiment 4: Referring to FIG. 3 , in the horizontal drop heat pipe for solar water heaters described in Embodiment 2, the fins 5 are provided with eight pieces, and the fins 5 are evenly distributed on the inner wall of the pipe of the heat-absorbing section 1 ; The width of the fin 5 is 0.8mm.

Eight evenly distributed fins 5 increase the heat-absorbing area of the heat-exchanging medium in the entire heat-absorbing section 1 and further improve heat-exchanging efficiency.

Embodiment 5: Referring to FIG. 1 , in the horizontal drop heat pipe for solar water heaters described in Embodiment 1, the inclination angle of the inclined section 2 is 45°.

The inclined section 2 with an inclined angle of 45° is conducive to faster return flow of the heat exchange medium.

Embodiment 6: Referring to FIG. 1 , in the horizontal drop heat pipe for solar water heaters described in Embodiment 1, the length of the inclined section 2 in the horizontal direction is 80 mm.

The inclined section 2 with a horizontal length of 80mm makes the return distance of the heat exchange medium longer and the return speed faster.

Embodiment 7: Referring to FIG. 1 , in the horizontal drop heat pipe for solar water heaters described in Embodiment 1, the diameter of the pipe body is 8 mm.

Claims (8)

1. The utility model provides a solar water heater is with horizontal fall heat pipe, includes body and the heat transfer medium of sealed in the body, its characterized in that: the tube body consists of a heat absorption section, an inclined section and a condensation section, wherein one end of the inclined section is connected with the heat absorption section, and the other end of the inclined section is connected with the condensation section; grooves or fins are arranged on the inner wall of the tube body of the heat absorption section.

2. The horizontal drop heat pipe for a solar water heater according to claim 1, wherein: the grooves are provided with a plurality of grooves, and each groove is spirally arranged and uniformly distributed on the section of the heat absorption section.

3. the horizontal drop heat pipe for the solar water heater according to claim 1, wherein the cross section of the groove is trapezoidal, and the groove depth is 0.5mm ~ 0.8 mm.

4. The horizontal drop heat pipe for a solar water heater according to claim 1, wherein: the fins are uniformly distributed on the inner wall of the tube body of the heat absorption section.

5. the horizontal drop heat pipe for the solar water heater according ~ claim 1, wherein the width of the fin is 0.8mm ~ 1.0 mm.

6. the horizontal drop heat pipe for the solar water heater according to claim 1, wherein the inclination angle of the inclined section is 40 ° ~ 50 °.

7. the horizontal drop heat pipe for the solar water heater according ~ claim 1, wherein the length of the inclined section in the horizontal direction is 80mm ~ 100 mm.

8. the horizontal drop heat pipe for the solar water heater according to claim 1, wherein the diameter of the pipe body is 8mm ~ 10 mm.