JPS5827270Y2 - Heat exchanger - Google Patents

Description

[Detailed description of the invention] This invention is a new heat exchanger that can hold a flexible synthetic resin heat exchanger tube in a spiral shape without becoming distorted, thereby significantly increasing its capacity. The cooling water inlet pipe 7 is located at the center of the casing 12, which has a water tank 17 at the bottom, an air intake 13 at the bottom, and an exhaust port 14 with a fan 15 at the top. A ladder 1 is provided in the vertical center connected to the ladder 1, and a support member 3 is provided around it that allows air to pass in the vertical direction, and a plurality of vertical outer headers 2a are provided around this support member.
, 2b...2f are provided, and the upper end of each outer header is
- a flexible volute connected to an annular collecting pipe with outlet pipes on the sides and opening at the inner end into the central header and at the outer end into the outer header and supported by said support 3; Tube 4a.

4b...4f are provided so as to surround the central header, and a vertical water spray header 18 through which the water in the water tank 17 is pumped by a pump 19 to the rudder 1 is passed through the center, and at the upper end of this water spray header, The sprinkler is equipped with a sprinkler that sprays water supplied from a water spray header diagonally downward and is rotated horizontally by the reaction.

Further, the support member 3 has a structure in which arms 9 protrude radially from a central ring 8 fitted into the central header 1, and the outer end of each arm 9 is connected to the inside of the annular frame 10.
A groove 11 is formed on the upper surface of the tube into which the tube is inserted, thus ensuring that the spiral of the tube is maintained.

Furthermore, the arm 9 is made to protrude obliquely upward, so that the tube spirals upward from the center.

The heat exchanger of the present invention described above is mainly suitable for filling material in a cooling tower, and the cooling water is sent from the inlet pipe 7 to the central header 1, passes through the tubes 4a, 4b, . 2f, flows out from the outlet pipe 6 of the collecting pipe 5, and the air that should remove heat from the cooling water passes through the outside of the tube in the vertical direction and exchanges heat with the cooling water.

However, in the present invention, since the tube is spiral, the flow path is much longer than that of a straight tube, and therefore, the cooling water sufficiently radiates heat and is cooled while passing through the tube.

Moreover, since the tube is supported by the support material 3, even if the tube is made of flexible synthetic resin, it is properly held without being distorted and is kept in a spiral shape, allowing heat exchange. It has become a great ability.

In addition, in this invention, horizontal rotating sprinkler 16
However, since this sprinkler is made to rotate by the reaction force when water is ejected, the water supply pump 19 that pumps water to the sprinkler is sufficient as the rotation drive hole, and a separate sprinkler is provided. There is also the advantage that there is no need to provide a motor for -, and that manufacturing costs and running costs can be reduced.

Incidentally, if the tube is tilted so that the outer end is on the upper side, there is an advantage that water and air can be removed from the tube well when the cooling water is cut off.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal cross-sectional side view showing an example of a cooling tower equipped with a heat exchanger according to the present invention, Fig. 2 is a cross-sectional plan view taken along the line ■-■, and Fig. 3 is a partially enlarged cross-sectional view showing how the tubes are installed. It is. In the figure, 1...center header, 2a, 2b...2
f...Outer header, 3...Support material, 4
a, 4b...4f...tube, 5...
...collecting ring, 6...outlet pipe, 7...inlet pipe.

Claims (1)

[Scope of utility model registration request] A vertical central header with a cooling water inlet pipe connected to the lower part is provided in the center of the interior of the casing, which has a water tank at the bottom, an air intake in the lower part, and an outlet with a fan in the upper part. A support member is provided around the support member that allows air to pass upward and downward, and a plurality of vertical outer headers are provided around this support member, and the upper end of each outer header is connected to an outlet pipe on the − side. surrounding the central header and having an inner end opening into the central header and an outer end opening into the outer header, the flexible spiral tube being supported by the support member; In addition, a vertical water spray header through which water from the water tank is supplied by a pump is passed through the central header, and the water supplied from the water spray header is jetted diagonally downward at the upper end of the water spray header, so that the reaction is caused by the water spray header. A heat exchanger equipped with sprinklers that can be rotated horizontally.