JPH01230992A - Sensible heat type heat exchanger - Google Patents

Abstract

PURPOSE:To obtain an inexpensive sensible heat type heat exchanger, by a method wherein the sensible heat exchanger is provided with a pair of box type frame bodies, having fusion welding property and whose both ends are opened, and a passage, consisting of fusion welding resin sheet forming a sensible heat exchanging unit, while a plurality of blocks, in which the opening section of one end of the frame body is bonded by fusion to both ends of the passage, is laminated and bonded. CONSTITUTION:A sensible heat type heat exchanger 1 is constituted by laminating and bonding box type frame bodies 2, having fusion welding property and whose both ends are opened, onto blocks 5, consisting of resin sheets 3 having fusion welding property with respect to the frame bodies 2. The block 5 is formed of the frame bodies 2 and the resin sheets 3, whose both side surfaces 4 are welded by fusion. According to this constitution, the block 5 can be manufactured integrally by a method wherein a pair of frame bodies 2 are arranged with a given space and the resin sheets 3, a capable of being welded to the frame bodies 2 by fusion, are arranged so as to pinch the frame bodies 2 from up-and-down directions while the superposed parts between the frame bodies 2 and the resin sheets 3 as well as both side surfaces 4 of the resin sheets 3 are welded by fusion. According to this method, manufacturing process may be shortened and the sensible heat exchanger 1, having large air stream flow passages 6 and small in the pressure loss thereof, may be manufactured.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sensible heat exchanger that reduces thermal Ronin during ventilation.

BACKGROUND OF THE INVENTION In recent years, ventilation systems using sensible heat exchangers that recover heat during ventilation have been increasingly installed. Conventionally, this type of sensible heat exchanger had a configuration as shown in FIG. In FIG. 4, a pipe-shaped sensible heat exchange section 101
It is constructed by laminating and adhering a plurality of blocks 103 consisting of a frame body 102 into which the pipe-shaped sensible heat exchange section 101 is fixed and into which the primary airflow A to be subjected to sensible heat exchange flows in and is discharged (for example, , Japanese Unexamined Patent Publication No. 58-60196).

Problems to be Solved by the Invention In the conventional sensible heat exchanger, there is a step of forming a sensible heat exchange sheet into a pipe-shaped sensible heat exchange part 101, and a step of forming the pipe-shaped sensible heat exchange part 1 101 and the second air flow A. This method has the problem of requiring a lot of manufacturing man-hours because it requires two steps: adhering the frame body 102 for inflow and discharge.

The present invention has been made with the above-mentioned problems in mind, and an object of the present invention is to provide an inexpensive sensible heat exchanger in which molding of a sensible heat exchange part and adhesion of a frame body for inflowing and discharging a secondary airflow are performed in one step.

Means for Solving the Problems In order to solve the above problems, 1 the present invention has thermal weldability,
A pair of box-shaped frames with both ends open and a passage made of a heat-welding resin sheet forming a sensible heat exchange section, one open end of the pair of frames and both ends of the passage. A block is formed by heat welding, and several blocks are laminated and bonded together.

Substitution With this configuration, processing can be performed in one step of heat welding by forming the head heat exchange part and constructing the flame flow inflow and discharge frames with a material having heat weldability.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.

In the figure, 1 is a sensible heat exchanger, and the sensible heat exchanger 1
a box-shaped frame 2 having heat-weldability and open at both ends;
It is constructed by laminating and bonding the frame 2 and a block 6 made of a heat-weldable resin sheet 3. Further, as shown in FIG. 2, the block 5 is formed by heat welding the frame 2, the resin sheet 3, and both side surfaces 4 of the resin sheet 3. 6 is an air flow path.

In the above structure, a pair of frames 2 having thermal weldability and open at both ends are arranged at a constant interval, and a resin that can be thermally welded to the frame bodies 2 is placed so as to sandwich the frames 2 in the vertical direction. The block 5 can be manufactured by integral molding by arranging the component 3 and thermally welding the frame 2, the electrically conductive portion of the resin sheet 3, and both side surfaces 4 of the resin sheet 3.

As described above, according to this embodiment, the sensible heat exchanger 1 is constructed using the frame body 2 which has thermal weldability and is open at both ends, and the resin sheet 3 which has thermal weldability to the frame body 2. By this,
The manufacturing process can be shortened, and by thermally welding only both side surfaces 4 of the resin sheet 3, a sensible heat exchanger 1 with a large air flow path 6 and a small pressure loss can be obtained.

FIG. 3 shows another embodiment of the invention. That is, in this embodiment, when the pressure loss is the same as that of the conventional pipe-type sensible heat exchanger, the resin sheet 3 is heated at regular intervals between both sides 4 in the same direction as the thermal welding of the both sides 4. By thermally welding and cutting the thermally welded part 7 in the XX direction, the sensible heat exchange part 8 becomes pipe-shaped.I) The low heat area increases and the head heat exchange efficiency improves.

Then, the frame bodies may be thermally welded to both ends of the pipe-shaped sensible heat exchange section 8.

Effects of the Invention As is clear from the description of the above embodiments, manufacturing is possible by constructing a sensible heat exchanger with a heat-weldable frame body with open ends and a resin sheet that is heat-welded to the frame body. The process can be shortened.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a head heat exchanger according to an embodiment of the present invention;
The figure is a perspective view of the blocks that constitute the sensible heat exchanger in Figure 1.
FIG. 3 is a partially cutaway perspective view of a sensible heat exchange section constituting a sensible heat exchanger according to another embodiment of the present invention, and FIG. 4 is a perspective view of a block constituting a conventional sensible heat exchanger. 1... Sensible heat exchanger, 2... Frame, 3.
River: resin sheet, 4: side of resin sheet,
5...Block. Name of agent: Patent attorney Toshio Nakao and one other person (-
8Nen vs. Imi Figure 2

Claims (1)

[Claims] A pair of box-shaped frames that are heat-weldable and open at both ends;
a passage made of a heat-fusible resin sheet forming a sensible heat exchange section, one open end of the pair of frames and both ends of the passage are thermally welded to form a block, and a plurality of blocks are formed. Sensible heat exchanger constructed by laminating and bonding individual layers.