JPH05248782A - Heat exchanger - Google Patents

Abstract

PURPOSE:To obtain a exchanger having a structure in which air leakage of a joint of a ridge of a heat exchanging section to a frame for holding the ridge is prevented. CONSTITUTION:A heat exchanger 11 has a body composed by bringing plates 13 into contact with upper and lower surfaces of a heat exchanging section 10 and assembling four frames 14 of L shape at its ridges 15, and comprises packings 17 of L shape provided inside the frames 14 and mounted in the section 10. Thus, the ridges are completely sealed by the packings to prevent air leakage of joints of the frames.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchanger used in an air conditioner.

[0002]

2. Description of the Related Art FIG. 11 and FIG.
It is a figure which shows the conventional heat exchanger shown by 178988, and 1 is a heat exchanger structural member, Comprising: The heat transfer plate 2 for heat and humidity exchange is laminated | stacked at fixed intervals. 3 is a plate mounted on the upper and lower surfaces of this heat exchanger constituting member, 4 is a frame, which covers the ridge of the heat exchanger constituting member 1, and is attached to the plate 3 with screws 5. A seal member 6 seals a gap between the heat exchanger constituent member 1 and the frame 4.

A conventional heat exchanger is constructed as described above,
It is installed at the intersection of the air supply passage and the exhaust passage of a ventilation device (not shown) for supplying and exhausting air to and from the room at the same time, and the passages are partitioned by the plate 3 and the frame 4. When the ventilation device is operated, the indoor side air flow P and the outdoor side air flow Q simultaneously enter the heat exchanger constituent member 1, where heat exchange and humidity exchange are performed and become P ′ and Q ′. To be leaked.

[0004]

In the conventional heat exchanger as described above, even if the seal member 6 is filled between the heat exchanger constituent member 1 and the frame 4 as shown in the drawing, the seal member 6 is filled. It is impossible to completely seal the above gaps due to the surface tension of the air gaps, and air gaps and air pools are generated, and the air inside air flow P and the outside air flow Q are mixed at the places, and the performance is degraded. was there.

Further, in the filling work of the seal member 6, there is a problem that the workability is poor such as a hand getting dirty and a drying time is required.

The present invention has been made to solve the above problems, and the heat exchanger constituent member and the frame are completely sealed, and air leaks and an indoor air flow and an outdoor air flow are mixed. The purpose of the present invention is to obtain a heat exchanger with good assemblability.

[0007]

SUMMARY OF THE INVENTION A heat exchanger according to the present invention comprises a heat exchange section in which quadrilateral heat transfer plates for heat or heat / humidity exchange are stacked at regular intervals, and In a heat exchanger configured by mounting plates on the upper and lower surfaces of the exchange part and accommodating a portion contacting the ridge in an L-shaped frame, a packing is provided between the frame and the ridge. It is a thing.

In addition to providing a fixed recess at the ridge,
A pressing convex portion for pressing and fixing the packing to the fixing concave portion is provided inside the frame.

A packing is provided between the plate and the heat exchange section.

[0010]

According to the present invention, the heat exchange section is formed by stacking quadrilateral heat transfer plates for exchanging heat or heat and humidity at regular intervals, and plates are mounted on the upper and lower surfaces of the heat exchange section. In addition, in the heat exchanger configured such that the portion in contact with the ridge is housed in the L-shaped frame, since packing is provided between the frame and the ridge,
The space between the ridge of the heat exchange section and the frame is sealed with packing.

In addition to providing a fixed recess at the ridge,
Since the packing is provided with the pressing convex portion that presses the fixing concave portion inside the frame, the packing is pressed by the pressing convex portion and is embedded in the fixing concave portion.

Since the packing is provided between the plate and the heat exchange section, the packing is fixed on the heat exchanger by the plate.

[0013]

【Example】

Example 1. 1 to 3 are views showing a first embodiment of the present invention, in which 10 is a heat exchange section of a heat exchanger 11, which is a quadrilateral heat transfer plate 12 having heat or heat / humidity exchange performance. Is a rectangular parallelepiped that is laminated at regular intervals.
Reference numeral 13 is a plate that is attached and fixed to the upper and lower surfaces of the heat exchange unit 10. The plate 13 is made of a steel plate and has a bottomed shape whose periphery is bent at a right angle to one side, and has screw holes 13a at its corners. Reference numeral 14 denotes a frame mounted on the ridge portion 15 of the heat exchanging portion 10. The portion in contact with the ridge portion 15 has an L-shape, and both ends have screws 16
Is attached to the plate 13. A packing 17 is made of a material such as rubber or silicon, and is formed in an L-shape that abuts on the ridge 15. In addition,
This packing has a ridge portion 1 when the heat exchanger 11 is assembled.
The gap between the frame 5 and the frame 14 has a thickness that is at least equal to or larger than the gap.

In the heat exchanger configured as described above, the assembly is performed by covering the upper and lower portions of the heat exchange section 10 with the plates 13. Then, the frame 14 having the packing 17 superposed on the inside is attached to the ridge portion 15 of the heat exchange portion 10, and the frame 14 is fixed to the plate 13 with the screw 16. In this case, the packing 17 secures the gap between the ridge 15 and the frame 14 by fixing the frame 14 with a screw.

Example 2. In addition, as shown in FIG. 4, the packing 17 is provided with an adhesive portion 18 on the abutting surface of the packing 17 with the frame 14, so that the workability when the packing 17 is polymerized on the frame 14 and the packing Airtightness and fixation are improved.

Embodiment 3. Further, as shown in FIGS. 5 to 7, a circular or rectangular recess 21 is provided in the frame 14, and the columnar packing 22 or the prismatic packing 23 is inserted into this recess, thereby obtaining the same effect as that of the first embodiment. There is. Furthermore, each packing 22, 2 is similar to the second embodiment.
3 has an adhesive portion 18, so that packing 22
The airtightness of 23 and the workability at the time of installation are improved. In addition, the amount of material can be reduced compared to the shapes of the packings 22 and 23.

Example 4. In addition, as shown in FIG.
5 is provided with the fixed concave portion 30 and the pressing convex portion 31 facing the fixed concave portion is provided on the frame 14,
When assembling the heat exchanger 11, the packing 17 presses the pressing protrusion 31.
Since it is pressed and fixed to and is fitted into the fixed concave portion 30, the airtightness between the heat exchange portion 10 and the frame 14 is further improved.

Example 5. Further, as shown in FIGS. 9 and 10, when the plate packing 40 is mounted between the heat exchange portion 10 and the plate 13 on one side or both sides, when the frame 14 is fixed to the plate 13 with the screws 16. The movement of the heat exchange unit 10 can be adjusted arbitrarily, the compressive force is evenly distributed to each layer of the heat exchange units 10 stacked, and local collapse is eliminated. Further, by providing the flat packing 40 with the adhesive portion 41, the flat packing 4 at the time of assembly is assembled.
Zero drops are eliminated, and the assemblability is improved.

[0019]

As described above, according to the present invention, the airtightness between the heat exchange portion and the frame is reliably maintained by the packing, and the indoor side air flow and the outdoor side air flow are not mixed, and the performance is stable. Since the sealing member is not filled, the assembly work time can be shortened.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the first embodiment of the present invention.

FIG. 3 is a vertical sectional view showing the first embodiment of the present invention.

FIG. 4 is a vertical sectional view showing a second embodiment of the present invention.

FIG. 5 is a vertical sectional view showing a third embodiment of the present invention.

FIG. 6 is a vertical sectional view showing a third embodiment of the present invention.

FIG. 7 is a vertical sectional view showing Embodiment 3 of the present invention.

FIG. 8 is a vertical sectional view showing Embodiment 4 of the present invention.

FIG. 9 is a cross-sectional view showing a fifth embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a fifth embodiment of the present invention.

FIG. 11 is a perspective view showing a conventional heat exchanger.

FIG. 12 is a vertical sectional view showing a conventional heat exchanger.

[Explanation of symbols]

 10 Heat Exchanger 11 Heat Exchanger 12 Heat Transfer Plate 13 Plate 14 Frame 15 Ridge 17 Packing 22 Cylindrical Packing 23 Square Column Packing 30 Fixing Recess 31 Pressing Protrusion 40 Flat Plate Packing

Claims (3)

[Claims] 1. A heat exchanging part, which is formed by stacking quadrilateral heat transfer plates for exchanging heat or heat and humidity at regular intervals.
In a heat exchanger configured by mounting plates on the upper and lower surfaces of the heat exchange section and housing a portion in contact with the ridge in an L-shaped frame, a packing is provided between the frame and the ridge. A heat exchanger characterized by being provided. 2. The heat exchanger according to claim 1, wherein a fixing concave portion is provided on the ridge portion, and a pressing convex portion for pressing and fixing the packing to the fixing concave portion is provided inside the frame. .. 3. The heat exchanger according to claim 1, further comprising a packing provided between the plate and the heat exchange section.