CN200946929Y - Heat collecting device of solar water heater - Google Patents

Abstract

The utility model relates to a solar water heater heat collection device, which is mainly used in solar water heaters. The heat collection device comprises a plurality of heat pipe glass vacuum heat collection tubes and heat collection liquid tubes, wherein a copper tube is arranged inside the heat collection tube, and a section of the copper tube extending into the heat collection liquid tube is a condensation section of the heat collection tube, and the characteristic is that the condensation section of the heat collection tube is covered in a finger-shaped sleeve, which is arranged in the heat collection liquid tube, and the heat collection liquid tube is connected to a water tank through a connecting pipe. The device has a fast heat transfer speed and a high solar energy utilization rate.

Description

A solar water heater heat collecting device

technical field

The utility model relates to a heat pipe type glass vacuum tube solar water heater collecting device, which is mainly used in solar water heaters.

Background technique

As a clean source of heat energy, there are many solar water heaters on the market at present. One of the ways to improve the utilization rate of solar energy is to improve the heat collection efficiency of the solar energy collection device, and the use of heat pipe type glass vacuum heat collection tubes to improve the heat collection efficiency of the solar energy collection device has been compared. universal. However, in the solar water heaters currently on the market, usually only a part of the condensation section of the heat pipe type all-glass vacuum tube enters the heat collecting liquid tube of the heat collector to heat the heat medium, so the function of the condensation section is not fully reflected, so that the heat collection efficiency of the solar collection device cannot be further improved. , resulting in a waste of solar energy resources.

Contents of the invention

Aiming at the current technical situation, the utility model provides a heat collecting device for a solar water heater, which has a fast heat transfer speed and a high utilization rate of solar energy.

The utility model is achieved in that:

A heat collecting device for a solar water heater, which includes several heat pipe-type glass vacuum heat collecting pipes and heat collecting liquid pipes, copper pipes are arranged in the heat collecting pipes, the section where the copper pipes extend into the heat collecting liquid pipes is the condensation section of the heat collecting pipes, and It is characterized in that the condensing section of the heat collecting pipe is wrapped in a finger-shaped casing, the finger-shaped casing is set in the heat collecting liquid pipe, and the heat collecting liquid pipe is connected with the water tank through a connecting pipe.

The heat collecting tube is in a U-shaped lumen structure arranged obliquely, and the finger-shaped sleeve is completely arranged in the U-shaped lumen.

The thermal insulation layer covered by the heat collecting liquid pipe has a double-layer structure, and a heat reflection film is sandwiched between the inner thermal insulation layer and the outer thermal insulation layer.

A layer of aluminum plate is closely attached to the inner surface of the heat collecting tube, and the copper tube is wrapped around the aluminum plate.

The advantage of the utility model is that the condensation section of the heat collecting tube is completely wrapped by the finger-shaped sleeve, and the heat-collecting liquid pipe passes through its U-shaped lumen so that the finger-shaped sleeve is completely placed in the lumen, thus increasing the number of finger-shaped sleeves. The contact area with the heat medium in the heat collecting liquid pipe increases the heat transfer area, and adopts double-layer insulation for the heat collecting liquid pipe, which improves the heating efficiency of the water in the heat collecting liquid pipe and improves the utilization rate of solar energy, and this This device is used as a part of the split water heater, which is easy to install, reduces the occupied area, and is elegant in appearance.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a diagram of the use state of the utility model.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

In the figure: 1 is the heat pipe type glass vacuum heat collecting tube, 2 is the heat collecting liquid pipe, 3 is the condensation section, 4 is the finger sleeve, 5 is the inner insulation layer, 6 is the heat reflection film, 7 is the outer insulation layer, 8 is a copper tube, 9 is an aluminum plate, 10 is a frame, and 11 is a U-shaped lumen.

As shown in Fig. 1 and Fig. 2, the solar water heater heat collecting device of the present utility model includes several heat pipe type glass vacuum heat collecting tubes 1 and heat collecting liquid pipes 2, and the upper end of each heat collecting pipe 1 is inserted into the heat collecting liquid pipe 2 The heat collecting pipe 1 and the heat collecting liquid pipe 2 are all installed on the frame 10, the heat collecting pipe 1 is provided with a copper pipe 8, and the section where the copper pipe 8 extends into the heat collecting liquid pipe 2 is the condensation section 3 of the heat collecting pipe 1. The condensing section 3 of the heat pipe 1 is wrapped in a finger-shaped sleeve 4, and the finger-shaped sleeve 4 is arranged in the heat-collecting liquid pipe 2, and the heat-collecting liquid pipe 1 is connected with the water tank through a connecting pipe. The heat collecting liquid pipe 2 is a sealed lumen, and it is sealed with the water tank and the condensation section 3 of the heat collecting pipe 1 .

As shown in FIG. 2 , the heat collecting liquid pipe 2 of the present invention has a U-shaped lumen 11 structure arranged obliquely, and the finger-shaped sleeve 4 is completely arranged in the U-shaped lumen 11 . The nozzle of the finger-shaped sleeve 4 is sealed and connected with the U-shaped lumen 11, the condensation section 3 of the heat-collecting tube 1 is covered with the inside of the finger-shaped sleeve 4, and the mouth end of the finger-shaped sleeve 4 is connected with the inside of the heat-collecting tube 1. Copper pipe 8 phase fit. Since the outer diameter of the finger sleeve 4 is greater than the outer diameter of the condensation section 3 of the heat collecting pipe, the contact area between the condensation section 3 and the heat medium in the heat collecting liquid pipe 2 is increased, and the heat transfer speed is accelerated, thereby speeding up the cooling of the water tank. The heating speed of the inner water improves the thermal efficiency.

The insulation layer covered by the heat collecting liquid pipe 2 of the utility model has a double-layer structure, and a heat reflection film 6 is sandwiched between the inner insulation layer 5 and the outer insulation layer 7 . Thereby enhancing the insulation performance and reducing heat loss.

The inner surface of the heat collecting tube 1 of the utility model is closely attached to a layer of aluminum plate 9 , and the copper tube 8 is wrapped around the aluminum plate 9 . The heat absorbed by the heat collecting tube 1 is transmitted to the copper tube 8 wrapped by the aluminum plate 9 through the aluminum plate 9 close to its inner surface, and is transferred to the finger sleeve 4 through the condensation section 3 of the heat collecting tube, and the finger sleeve 4 is transferred To the heat medium in the heat collecting liquid pipe 2, thereby directly or indirectly heating the inside of the water tank. As a part of the split water heater, the device of the utility model is convenient for installation, reduces floor space, and is elegant in appearance.

Claims (4)

1, a kind of solar water heater heat-collecting device, it comprises some heat pipe-type glass heat-collecting vacuum tubes and (1) heat collecting liquid tube (2), be provided with copper pipe (8) in the thermal-collecting tube (1), copper pipe (8) stretches into a section of heat collecting liquid tube (2) and is the condensation segment of thermal-collecting tube (3), the condensation segment (3) that it is characterized in that thermal-collecting tube is coated in the thimble tube (4), thimble tube (4) is set in the heat collecting liquid tube (2), and heat collecting liquid tube (2) links to each other with water tank by tube connector.

2, solar water heater heat-collecting device according to claim 1 is characterized in that U-shaped tube chamber (11) the formula structure that heat collecting liquid tube (2) is inclined to set, and thimble tube (4) is arranged in the U-shaped tube chamber (11) fully.

3, solar water heater heat-collecting device according to claim 1 and 2 is characterized in that the heat-insulation layer that described heat collecting liquid tube (2) coats is a double-decker, accompanies thermal reflecting coating (6) between inner thermal insulating layer (5) and the external thermal insulation (7).

4, solar water heater heat-collecting device according to claim 3 is characterized in that being close to one deck aluminium sheet (9) on described thermal-collecting tube (1) inner surface, and copper pipe (8) wraps up aluminium sheet (9) all around.

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