CN2516906Y

CN2516906Y - Solar plate water heater

Info

Publication number: CN2516906Y
Application number: CN01257502U
Authority: CN
Inventors: 姚敦凡
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-12-07
Filing date: 2001-12-07
Publication date: 2002-10-16
Anticipated expiration: 2011-12-07

Abstract

The utility model discloses a flat solar water heater comprising a water tank, a water outlet at the upper part of the water tank, a water inlet at the lower part of the water tank and a heat-collection plate fixed at the lower part of the water tank. The heat-collection plate comprises a frame and a plate core on the frame, wherein, the plate core is a hot tube with a plurality of fins; the hot tube is a vacuum sealing tube in which working medium that is liquid at normal temperature is arranged; the volume of the liquid working medium is smaller than the volume of the intracavity of the hot tube; and one end of the hot tube is connected with the water tank and extends into the water tank. The utility model heats the water in the water tank by repeating the following procedure that the liquid working medium in the hot tube changes into gaseous state after being heated, enters into the intracavity of the hot tube and reflows to the connecting part of the intracavity of the hot tube with the fins after condensation. The utility model has the advantages of avoiding cracking from low-temperature freezing, preventing the hot tube from fouling because no water is in the hot tube, and upgrading the prior products of the flat solar water heater.

Description

The plate solar water heater

The utility model relates to a kind of plate solar water heater.

The plate solar water heater of Xiao Shouing in the market, comprise water tank and the thermal-arrest plate below water tank, the thermal-arrest plate comprises framework and the plate core that is installed on the framework, this plate core is the metal tube of band muscle sheet, the two ends of the metal tube of many parallel arranged are communicated with two transverse tubes respectively, wherein a position transverse tube up is communicated with the hot water inlet of water tank upper, another root position below transverse tube be communicated with the cooling water outlet of water tank bottom, shine upon on the thermal-arrest plate, by metal tube the water in the pipe is heated, water proportion after the heating descends, transverse tube by the top flows to water tank, the cold water of water tank bottom flows into metal tube by the transverse tube that another root is in the below, water is heated in continuous circulation by hot and cold water, water temperature in the water tank is risen gradually, like this, solar time is arranged, under irradiation of sunlight, the water in the metal tube constantly flows, through using for a long time, easily form incrustation scale in the metal tube and the thermal efficiency is reduced, do not have the solar time, water has been expired in storage in the metal tube, winter temperature be lower than under the situation of zero degree, metal tube can burst because of water freezing wherein, causes the plate solar water heater to scrap.

The purpose of this utility model provides does not a kind ofly have flowing water in the plate core, can not burst because of low temperature freezes, the plate solar water heater of non flouling behaviour yet.

For achieving the above object, the utility model plate solar water heater comprises water tank, the upper design of water tank has delivery port, the bottom design has water inlet, is installed with the thermal-arrest plate below water tank, and the thermal-arrest plate comprises framework and the plate core that is installed on the framework, the plate core is the heat pipe of band muscle sheet, heat pipe is a sealed tube, and working medium is housed in heat pipe, and working medium is in a liquid state at normal temperatures, the volume of liquid refrigerant is less than the volume of heat pipe inner chamber, and an end of heat pipe is connected with water tank and stretches in the water tank.

Because the heat pipe of the utility model plate solar water heater seals, the heat pipe that is inserted in the water tank partly is condensation segment, being connected with the muscle sheet partly is evaporator section, in the inner chamber of heat pipe, liquid refrigerant is housed, when solar radiation is on the plate core, liquid refrigerant in the heat pipe is heated, make the liquid refrigerant gasification, the working medium of gasification is taken heat to condensation segment and is passed in the water tank water is heated, and gaseous working medium is condensed into liquid state and flows back to evaporator section simultaneously, so circulation, the heat that the thermal-arrest plate is drawn onto continuously passes to water tank, thereby realizes the purpose of water heating, therefore, do not have current in the heat pipe, the phenomenon that does not also just have fouling takes place; Because the volume of the liquid refrigerant of adorning in the heat pipe is less than the volume of heat pipe inner chamber, heat pipe is pumped into vacuum, and the working medium in the heat pipe is special-purpose can add antifreezing agent, so the working medium in the heat pipe can not frozen generally speaking, even can not be full of whole heat pipe inner chamber space after freezing yet, so just improved anti-freezing property, the phenomenon of having avoided bursting because of freezing takes place.

Below in conjunction with accompanying drawing in detail an embodiment of the present utility model is described in detail.

Accompanying drawing is depicted as the utility model plate solar water heater partial sectional view schematic diagram.

As shown in the figure, three heat pipes [4] parallel arranged is fixedly mounted on the framework [6], heat pipe [4] is the vacuum tube of sealing, in heat pipe [4] inner chamber, working medium is housed, volume was about 1/3 of heat pipe [a 4] cavity volume when working medium was liquid, be fixedly connected with muscle sheet [5] at heat pipe [4] one ends, heat pipe [4] and muscle sheet [5] composing plate core, plate core and framework [6] are formed the thermal-arrest plate, the other end of heat pipe [4] is fixedly mounted on the water tank [1] by nut [3] and sealing ring [2], the bottom design of water tank [1] has water inlet, and upper design has delivery port.

Claims

1. plate solar water heater, comprise water tank, the upper design of water tank has delivery port, and the bottom design has water inlet, below water tank, be installed with the thermal-arrest plate, the thermal-arrest plate comprises framework and the plate core that is installed on the framework, it is characterized in that: the plate core is the heat pipe of band muscle sheet, and heat pipe is a sealed tube, working medium is housed in heat pipe, working medium is in a liquid state at normal temperatures, and the volume of liquid refrigerant is less than the volume of heat pipe inner chamber, and an end of heat pipe is connected with water tank and stretches in the water tank.