JPH018906Y2 - - Google Patents

Description

[Detailed description of the invention] a. Field of industrial application The invention relates to a ventilation system for supplying and exhausting air inside and outside a house. An inner cylinder with an outdoor air supply port opens indoors at the end, and an outer cylinder with an indoor air intake port opens outdoors at the end, both of which are related to ventilation devices that supply or exhaust air using a fan. be.

b. Prior art This type of ventilation system used in houses has traditionally been known to use high-grade fans for air supply and exhaust, which is not only expensive but also requires complicated piping to install. In addition to being uneconomical in construction, it also poses a problem in disposing of water droplets due to condensation that tend to occur in heat exchange type ventilation systems such as the one in this case.

c. Purpose of the invention The present invention not only solves the above-mentioned drawbacks, but also directs water droplets due to condensation to the outdoors from the appropriate place of the inner cylinder where condensation is most likely to occur, and also directs water droplets from the outside air of the inner cylinder. The purpose of this is to install a heating wire at the intake to heat the introduced outside air as necessary, and to prevent condensed water from freezing.

d Structure of the invention To explain the structure of the invention with reference to the drawings, one end of the inner cylinder 4 of the double cylinder installed along the ceiling 1 inside the house is an opening for supplying air outdoors through the outer wall 2. part 5, and an air supply fan 6 is installed in this part,
A heating wire 7 is installed, and a covering part 8 formed by winding a heat insulating material is installed by an appropriate width at the end of the inner cylinder 4,
A drainage ring 9 whose periphery protrudes from the surface of the inner cylinder 4 is attached to the boundary thereof.

The inner cylinder 4 with the drain ring 9 as a boundary is located inside the outer cylinder 10 and has an arbitrary number of blades 11 protruding around the periphery parallel to the axes of both cylinders, and the other end of the inner cylinder 4 is connected indoors. A covering portion 13 of a heat insulating material is similarly wrapped around the circumferential surface of an appropriate width leading to the opening 12, and the heat insulating covering portion 13 and the inner cylinder 4
A drain ring 9 of the same shape is also attached to the boundary between the two.

The outer cylinder 10 has, in the vicinity of the end of the inner cylinder 4,
An intake port 14 from indoors is opened, and the other end is communicated with an exhaust port 15 having an exhaust fan 16 to the outdoors, and both parts of the inner cylinder 4 are installed so as to maintain airtightness.

However, directly below both drain rings 9 mentioned above,
A water droplet receiving funnel 17 and a water receiving tray 18 are provided respectively, and a pipe 19 extending from these drains the water to the outdoors.When installing this device, if the end of the cylinder body is inclined in the draining direction, the water can be drained. The extraction operation becomes easier.

In addition, the heating wire 7 installed near the outdoor air connection opening 5 of the inner cylinder 4 is configured to operate in conjunction with the air supply fan 6, and the current is cut off when the fan 6 is inactive. If the installation is limited to raising the air temperature by 15 to 20 degrees Celsius, there is no risk of freezing even when outside air is introduced in cold regions, and when the outside air is high (over 30 degrees Celsius in cold regions) (unthinkable), the ventilation system is safe to operate.

e Function As described above, the configuration of the present invention is used exclusively as a ventilation system inside and outside a house in a cold region, and when both the supply and exhaust fans 6 and 16 are driven, the outside air comes into contact with the heating wire 7 through the opening 5 and is heated. Inner cylinder 4
and introduces clean outside air indoors from the indoor opening 12 at the other end, while the intake port 14 of the outer cylinder 10
The indoor dirty air is sucked into the outer cylinder 10, and is guided by the exhaust fan 16 installed at the terminal.
By repeating the operation of exhausting air to the outdoors from the exhaust port 15, the inside of the house is ventilated. At this time, condensation water droplets generated due to the temperature difference between the air flows flowing between the inner and outer cylinders 4 and 10 tend to form on the surface of the inner cylinder 4 other than the part covered with the heat insulating material, and the water droplets on the surface of the inner cylinder are covered with the heat insulating material. Droplets are dripped into the funnel 17 from the drainage ring 9 installed at each boundary with the parts 8 and 13, and the saucer 18
Water droplets formed inside the outer cylinder 10 and other parts fall directly into the tray 18, and are appropriately drawn out through a pipe 19 to the outside to remove condensation during ventilation.

f. Effects of the invention This invention prevents condensation from forming between the inner and outer cylinders by using heat insulating material covering parts 8 and 13 that have an appropriate width from the outdoor opening 5 and the indoor opening 12, which are both ends of the inner cylinder 4 having a double cylinder structure. The condensed water drops pass through the drain ring 9 and the funnel 17, or in other cases, are collected directly in the respective trays 18, and are discharged outdoors through a pipe 19 that can be extended as desired, which not only provides comfortable ventilation in cold regions, but also prevents condensation. It has practical effects such as ease of processing, prevention of freezing, and economical construction.

[Brief explanation of the drawing]

Figure 1 of the drawing is a side view showing the installation of the ventilation system;
Figure 2 is a vertical sectional view of the air supply end of this device, Figure 3 is a side view taken from the X-Y line direction in Figure 2, Figure 4 is a vertical sectional view of the exhaust end, and Figure 5 is a water drain. FIG. 3 shows a plan view of the ring. Explanation of symbols, 1...Ceiling, 2, 3...Outer wall, 4
... Inner cylinder, 5 ... Outdoor opening, 6 ... Air supply fan, 7 ... Heating wire, 8 ... Insulation material covering section, 9 ...
Drain ring, 10... Outer tube, 11... Wing piece, 12...
Indoor opening, 13...Insulating material covering part, 14...Intake port, 15...Exhaust port, 16...Exhaust fan, 1
7... funnel, 18... saucer, 19... pipe.

Claims (1)

[Scope of utility model registration request] A double pipe structure is formed by an inner cylinder 4 having an intake port 5 outdoors and an opening 12 indoors, and an outer cylinder 10 having an intake port 14 indoors and an exhaust port 15 outdoors. An arbitrary number of blades 11 are provided in the center of the surface in parallel with the axis, and insulation material coating parts 8, 13 are wound around the appropriate widths at both ends of the blades 11 of the inner cylinder 4 and insulation material coating parts 8, 13. A drain ring 9 whose periphery protrudes from the surface of the inner cylinder 4 is provided at the boundary between the drain rings 9, and a funnel 17 and a saucer 18 are provided directly below each drain ring 9.
This ventilation device includes an air supply fan 6 attached to the intake port 5 of the inner cylinder 4, and a heating wire 7 interlocked with the air supply fan 6 attached to the inside thereof.