CN201173609Y - Split solar water heater - Google Patents

Abstract

The purpose of the utility model is to provide a split type solar water heater with small heat loss and high heat transfer efficiency. It includes a water tank with water inlet and outlet, and a heat collector. The heat collector includes a header with water inside, and a glass heat collection tube installed on the header. The evaporation section extends into the glass heat collection tube, and the condensation section extends into the header. The metal heat pipe inside; it also includes the joint heat collector pipe with the evaporating section extending into the header and the condensing section extending into the water tank.

Description

Split solar water heater

Technology area

The utility model relates to a split solar water heater.

Background technique

Existing split solar water heaters with separate water tank and heat collector generally use water pumps to transfer heat from the heat collector into the water tank; The condensation section of these heat pipes is directly connected with the evaporation section of the joint heat collector pipe, and the heat in the heat collector is transferred into the water tank through the joint heat collector pipe. Their common disadvantage is that the heat transfer efficiency from the collector to the tank is low.

Utility model content

The purpose of the utility model is to provide a split type solar water heater with small heat loss and high heat transfer efficiency.

The split type solar water heater includes a water tank with water inlet and outlet, and a heat collector. The heat collector includes a header with water inside, and a glass heat collection tube arranged on the header. The metal heat pipe that extends into the header; it also includes the joint heat pipe that the evaporation section extends into the header and the condensation section extends into the water tank.

The beneficial effects of the utility model:

The utility model transmits the solar energy collected by the glass heat-collecting tube to the water in the header through the metal heat pipe, and then transfers the heat to the evaporation section of the combined heat-collecting tube in the header through the water, and then transmits heat to the water tank through the combined heat-collecting tube. The water in the header serves to increase the contact area between the evaporation section of the heat collector tube and the condensation section of the metal heat pipe, thereby improving the heat transfer efficiency. In addition, since there is no water in the glass heat collecting tube, there will be no scaling; even if the glass heat collecting tube is damaged, there will be no water leakage. If a few glass heat collecting tubes are damaged, it will have little effect on the whole machine. Air drying will not explode the tube.

As an improvement, it also includes a capillary connecting the water tank to the header. The capillary can play the role of replenishing water and exhausting the header.

As an improvement, fins are arranged on the outer surface of the evaporation section of the metal heat pipe. The solar energy collected by the glass heat collection tube can be transferred to the evaporation section of the metal heat pipe through the fins.

Description of drawings

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

Detailed ways

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

The split type solar water heater shown in FIG. 1 includes a water tank 2 provided with a water inlet 5 and a water outlet 6 , and a heat collector 1 . The heat collector includes a header 13 with water inside, a glass heat collector 9 arranged on the header, an evaporation section 16 extending into the glass heat collector, and a condensation section 17 extending into the metal heat pipe 3 in the header. Fins 4 are arranged on the outer surface of the evaporation section 16 . The joint heat collector pipe 10 includes an evaporation section 14 extending into the header, a condensation section 11 extending into the water tank, and an adiabatic section 12 connecting the two. Capillary 15 communicates with the water tank and header. An automatic exhaust valve 7 is arranged on the top of the water tank. Safety relief valve 8 is connected on the water inlet.

The solar energy collected by the glass heat-collecting tube is transferred to the water in the header through the metal heat pipe with fins, and then transferred to the evaporation section of the combined heat-collecting tube through the water, and then the heat is transferred to the water tank by the connected heat-collecting tube. The water in the header serves to increase the contact area between the evaporation section of the heat collector tube and the condensation section of the metal heat pipe, thereby improving the heat transfer efficiency.

Both metal heat pipes and joint heat pipes are prior art and will not be described any more.

Claims (3)

1. Split-type solar water heater, including a water tank with water inlet and outlet, and a heat collector. It is characterized in that: the heat collector includes a header with water inside, a glass heat collecting tube arranged on the header, and the evaporation section extends into the glass. The metal heat pipe in the heat collecting tube and the condensing section extending into the header; it also includes the heat collecting tube in which the evaporating section extends into the header and the condensing section extends into the water tank. 2. The solar water heater according to claim 1, wherein fins are arranged on the outer surface of the evaporation section of the metal heat pipe. 3. The solar water heater according to claim 2, characterized in that: it also includes a capillary connecting the water tank and the header.