CN204830961U - Compulsory convection heat transfer pulsation heat pipe cooling ware for heat supply - Google Patents

Abstract

The utility model discloses a forced convection heat exchange pulsating heat pipe radiator for heat supply, which comprises a shell, a pulsating heat pipe, a hot water flow channel and a fan, wherein the pulsating heat pipe and the hot water flow channel are arranged in the shell and combined together , the pulsating heat pipe inserted in the hot water flow channel is the heating section, the pulsating heat pipe outside the hot water flow channel is the condensing section, the fan is installed on one side of the shell, and the cold air blown out by the fan outlet passes through the condensing section of the pulsating heat pipe to be heated , the housing on the corresponding side of the fan is provided with an air outlet. Beneficial effects: the utility model has good heat transfer performance; small size, simple structure, and relatively low cost; adding a fan can enhance heat transfer and provide better air flow organization than natural convection to make the air temperature in the room more uniform.

Description

Forced convection heat exchange pulsating heat pipe radiator for heating

technical field

The utility model relates to a radiator, in particular to a forced convection heat exchange pulsating heat pipe radiator for heat supply.

Background technique

At present, radiators are common heating equipment in northern my country, and the radiators currently used are mostly cast iron and steel radiators. After the hot water in the radiator exchanges heat with the wall surface of the radiator, the air outside the radiator exchanges heat with the wall surface of the radiator by natural convection, so that the heat is transferred from the hot water to the indoor air. The heat transfer coefficient of natural convection between the air and the wall is small, and the heat transfer must be enhanced by increasing the outer surface area of the heat exchanger. In order to meet the heating effect, the existing radiators are generally relatively large in size and occupy more indoor space.

Contents of the invention

The purpose of the present invention is to reduce the size of the heat dissipation equipment as much as possible under the premise of satisfying the heat supply effect, and adopt the pulsating heat pipe as the core heat exchange element to provide a forced convection heat exchange pulsating heat pipe radiator for heating.

The forced convection heat exchange pulsating heat pipe radiator for heating provided by the utility model includes a shell, a pulsating heat pipe, a hot water flow channel and a fan, wherein the pulsating heat pipe and the hot water flow channel are arranged in the shell and combined together, inserted in the The pulsating heat pipe inside the hot water flow channel is the heating section, and the pulsating heat pipe outside the hot water flow channel is the condensation section. The housing on one side is provided with an air outlet.

The hot water flow channel is square, made of steel, and the inner surface is sprayed with anti-corrosion coating.

The pulsating heat pipe is a copper pipe with an inner diameter of 1.8-3mm.

The working medium in the pulsating heat pipe is alcohol or pure water. Alcohol is used when the temperature of the hot water in the hot water flow channel is 30-50 °C, and pure water is used when the temperature of the hot water in the hot water flow channel is 60 °C or above. The liquid filling rate in the heat pipe is 45-55%, and a vacuum degree of 3-4pa is maintained.

Working principle of the utility model:

When hot water flows through the hot water channel, the working fluid in the pulsating heat pipe is heated, and the working fluid oscillates between the heating section and the condensing section under the thermal drive, thereby achieving strong heat transfer. Under the same conditions, the exchange rate of the pulsating heat pipe The thermal capacity is ten times that of ordinary heat sinks, so the size can be greatly reduced and material can be saved. Driven by the fan, the indoor relatively low-temperature air blows through the condensation section of the pulsating heat pipe, destroying the bottom layer of the wall-attached laminar flow of the air outside the tube, and further enhancing the heat transfer between the air and the working medium in the pulsating heat pipe. At the same time, hot air is sent into the indoor space at a certain rate from the air outlet on the side of the housing, which can form a better airflow organization than natural convection, making the air temperature in the room more uniform. The pulsating heat pipe adopts a closed circuit and heats at the bottom, so the liquid filling rate range of the working medium in the tube can be wide to reduce the difficulty of manufacturing. But it should not be lower than 20% to avoid drying out, and should not be higher than 80% to avoid oscillation. Cover all parts neatly and beautifully in the housing.

The beneficial effects of the utility model:

The utility model has good heat transfer performance, small size, simple structure, and relatively low cost; the fan can enhance heat transfer and provide better air flow organization than natural convection to make the room air temperature more uniform.

Description of drawings

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

1. Shell 2. Pulsating heat pipe 3. Hot water flow channel 4. Fan 5. Air outlet.

Detailed ways

Please refer to Figure 1:

The forced convection heat exchange pulsating heat pipe radiator for heating provided by the utility model includes a shell 1, a pulsating heat pipe 2, a hot water flow channel 3 and a fan 4, wherein the pulsating heat pipe 2 and the hot water flow channel 3 are arranged in the shell 1 The pulsating heat pipe 2 inserted in the hot water flow channel 3 is the heating section, the pulsating heat pipe 2 outside the hot water flow channel 3 is the condensation section, and the fan 4 is arranged on one side of the shell 1. The fan 4 The cold air blown out from the outlet passes through the condensation section of the pulsating heat pipe 2 to be heated, and the housing 1 on the corresponding side of the fan 4 is provided with an air outlet 5 .

The hot water flow channel 3 is square, made of steel, and the inner surface is sprayed with anti-corrosion coating.

The pulsating heat pipe 2 is a copper pipe with an inner diameter of 1.8-3mm.

The working medium in the pulsating heat pipe 2 is alcohol or pure water. Alcohol is used when the temperature of the hot water in the hot water flow channel 3 is 30-50°C. Pure water is used, the liquid filling rate in the pulsating heat pipe 2 is 45-55%, and a vacuum degree of 3-4 Pa is maintained.

Working principle of the utility model:

When the hot water flows through the hot water channel 3, the working medium in the pulsating heat pipe 2 is heated, and the working medium oscillates and flows between the heating section and the condensing section under the thermal drive, thereby achieving strong heat transfer. Under the same conditions, the pulsating heat pipe 2, the heat exchange capacity is ten times that of ordinary radiators, so the size can be greatly reduced, and materials can also be saved. Driven by the fan 4 , relatively low-temperature indoor air is blown through the condensation section of the pulsating heat pipe 2 , destroying the bottom layer of the wall-attached laminar flow of the air outside the pipe, and further enhancing the heat transfer between the air and the working medium in the pulsating heat pipe 2 . At the same time, hot air is sent into the indoor space from the air outlet 5 on the side of the housing 1 at a certain rate, which can form a better airflow organization than natural convection and make the air temperature in the room more uniform. The pulsating heat pipe 2 adopts a closed circuit and heats at the bottom, so the filling rate range of the working medium in the tube can be wide to reduce the manufacturing difficulty. But it should not be lower than 20% to avoid drying out, and should not be higher than 80% to avoid oscillation. All the parts are covered neatly and beautifully in the casing 1 .

Claims (4)

1. A forced convection heat exchange pulsating heat pipe radiator for heating, characterized in that: it includes a housing, a pulsating heat pipe, a hot water flow channel and a fan, wherein the pulsating heat pipe and the hot water flow channel are arranged in the housing and combined in the Together, the pulsating heat pipe inserted into the hot water flow channel is the heating section, the pulsating heat pipe outside the hot water flow channel is the condensing section, the fan is installed on one side of the shell, and the cold air blown out by the fan outlet passes through the condensing section of the pulsating heat pipe. For heating, the housing on the corresponding side of the fan is provided with an air outlet. 2. The forced convection heat exchange pulsating heat pipe radiator for heating according to claim 1, characterized in that: the hot water flow channel is square, made of steel, and the inner surface is sprayed with anti-corrosion coating. 3. The forced convection heat exchange pulsating heat pipe radiator for heating according to claim 1, characterized in that: the pulsating heat pipe is a copper pipe with an inner diameter of 1.8-3mm. 4. The forced convection heat exchange pulsating heat pipe radiator for heating according to claim 1, characterized in that: the working medium in the pulsating heat pipe is alcohol or pure water, and the liquid filling rate in the pulsating heat pipe is 45- 55%, and maintain a vacuum of 3-4pa.