JPS60155841A - Ventilating device - Google Patents

Abstract

PURPOSE:To eliminate possibility of freezing on a cold land or the like in winter and permit heat exchanging ventilation at all times by a method wherein two ventilating paths for feeding and discharging air are provided and the flows of feeding and discharging air, hitting respective heat exchange elements in both ventilating paths, are permitted to be converted. CONSTITUTION:The ventilating device 10 is divided into two parts of right and left by a wall 30 and one half is exposed to the outside of a room while the other half is exposed to the inside of the room. The device 10 can be rotated about a support shaft by 180 deg.. Cold air from the outside S of the room is sucked by the rotation of a fan 15' through an opening 28'(A) and the feeding and discharging port 26' as shown by the arrow sign in the diagram while warm-air in the room is sucked through the opening 28(B) and the feeding and discharging port 26. When the device is used for a given time under this condition, a member, in which a cap 12(12'), an intermediate plate 13(13') and an intermediate tube 14(14') are integrated, is rotated by 180 deg.. Subsequently, the contdition is converted after the given time has elapsed under this condition. Thus, the converting operation of the feeding and discharging port is repeated intermittently and whereby the freezing may be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a ventilation system for indoor ventilation particularly suitable for cold regions.

[Background technology]

A heat exchange type ventilation system is used, which is installed at the boundary between indoors and outdoors, and uses a fan to perform forced ventilation through air supply and exhaust ports that open indoors and outdoors. Conventional ventilation devices of this type were configured to maintain a constant indoor humidity without letting it escape, using a heat exchange element made of a humidity exchangeable material such as paper impregnated with lithium chloride. It was not suitable for use in cold winter regions where water vapor condenses in ceilings, closets, etc. Also, the outside air is 0℃
In the following cases, condensed water adhering to the heat exchange element could freeze, making the Ichi-Otsu element itself unusable.

To solve this problem, as shown in FIG.
There is also a heat exchange type ventilation system that exchanges heat between the air passageway 2b and the cold air passage 2b, but when the outside air is below Q''C, there is a high possibility that condensed water will freeze, especially in the area near the outdoors indicated by This may cause problems such as a decrease in heat exchange efficiency and an increase in pressure loss due to clogging of the fins.
As shown in Figure 2, heat vibrator 1 has a high possibility of freezing.
The method of inserting the heater 3 inside the
If freezing occurs, countermeasures can be taken such as temporarily stopping the intake of outside air and recycling the warm air inside the room as shown by the arrow in the figure, but the method shown in Figure 2 requires heat from a heater. However, the method shown in Figure 3 has the problem that heat exchange ventilation cannot be performed during thawing.

[Purpose of the invention]

This invention has been made in view of the above circumstances, and provides a ventilation system that is free from freezing even in cold regions in winter and is capable of constant heat exchange ventilation.

Disclosure of the Invention C] That is, the ventilation device according to the present invention includes two ventilation passages serving as supply and exhaust ports, a heat exchange element for exchanging heat between both ventilation passages, and a heat exchange element for forcing ventilation between both ventilation passages. A ventilation system each comprising a fan,
Both ventilation channels are characterized in that it is possible to reverse the flow of supply air and JJI air that impinges on the respective heat exchange element. The embodiments shown in the drawings will be specifically described below.

FIG. 4 is an exploded view of an example of the ventilation device according to the invention, which consists of a support 11.11', a cap 12.12', an intermediate plate 13.13', an intermediate cylinder 14. 14
', fans 15, 15', element parts 16, etc., and are formed in a left-right symmetrical shape. Inside the cylindrical element part 16, there is a partition plate 18 along the diametrical direction and the axial direction.
is provided, and the inside is separated by this partition plate 18.
divided. Moreover, inside the element part 16, a plurality of heat pipes 20 each having fins 19 are provided in parallel along the axial direction as a heat exchange element. As the heat exchange element, any suitable element other than the heat vibrator described above, such as a cross-flow element described below, can be used.

A shaft hole 18a extending in the axial direction is provided in the center of the partition plate 18, and the fan 15.1'5' is attached to both ends of the rotating shaft 17 that passes through the shaft hole 18a. The fans 15, 15' on both sides are formed so as to blow air into the element section 16 when rotated.

Inside the intermediate cylinder 14.14', there is a partition plate 22.22 that divides the interior into upper and lower halves, similar to the partition plate 18 of the element section.
' is provided in the center of the shaft hole 22 that passes through the partition plate.
a, 22 a' are provided. Intermediate cylinder 14.14
On the outer periphery of ', there is an air supply/exhaust port 23.23' that leads to one of the small chambers (in the case of 14, the upper small chamber, in the case of 14', the lower small chamber) partitioned by the partition plate 22.22'. It is provided.

Medium 1i13.13' has shaft holes 13a, 13a in the center.
', with a semicircular opening 1 on one side bordering the diameter.
3b and 13b' are drilled. Also, cap 12
．． 12' has a bottom plate 25.25' at one end,
There are shaft holes 25a, 25 in the center of the bottom plates 25, 25'.
a'(25a' is not shown), and a plurality of slit-shaped supply/exhaust ports 26, 26' are bored on one side of the diameter.

The support 11.11' is provided with diametrical bars 27, 27', on both sides of which semicircular openings 28, 28' are provided. Bearings 29 (not shown) and 29' are provided at the center of the crosspieces 27 and 27'.

As shown in FIG. 5, this ventilation device 10 is attached to a hole 30a provided in a wall 30 that partitions indoors and outdoors. In this installation, the wall is located in the center along the axis of the ventilation device 10, and the ventilation device 10 is mounted on the wall 3.
0, it is divided into left and right halves, with one half exposed outdoors and the other half exposed indoors. The ventilation device 10 comprises the support 11.11' and the element part 1.
6 is fixed to the wall 30, the cap 12.12', the middle plate 1
3.13' and intermediate cylinder 14.14' are connected to these shaft holes 2.
2a, 22a', 13a, 13a'.

It is rotatably supported by a support shaft 17 (see FIG. 4) which extends through bearings 25a and 25a' and is supported by bearings 29 and 29'. In addition, cap 12. The middle plate 13 and the intermediate cylinder 14 are integrated with each other by appropriate means such as crimping or force fitting, and the cap 12', the middle plate 13', and the intermediate cylinder 14 on the opposite side
' is also integrated in the same way. These integrated members can be rotated by 1) 10 degrees around the support axis. As the rotation means in this case, for example, a stamping motor or the like for rotating the support shaft may be provided in the support member 11, 11'. In addition, these integrated members can be rotated and fixed manually (.

In the assembled state, the fan 15 (15') is attached to the cap 121.
The length of the support shaft 17 is determined so that it is located inside the support shaft 2'). Although the bottom part of the element part 16 is not shown in the figure, it is inclined in the axial direction so that the central part is the lowest, and the drain 1 aperture 33 is provided at the lowest part. Regarding how to use this ventilation device 10, when it is used in the condition shown in FIG. Opening 28' (A
) and the supply/exhaust port 26' of the cap 12', and is sucked in through the opening 13b' of the intermediate plate 13', the intermediate cylinder 14', and the element portion 16. Each partition plate 22', 18.22 of the intermediate cylinder 14
The supply of the intermediate cylinder 14 (
A Qi 1] 23 is released indoors (R). In addition, indoor warm air is sucked in through the opening 28 (B) on the left side of the support II and the supply/exhaust air [-126] of the 4-Yap 12, and
open ITI 13 h, and intermediate cylinder 14. Element part 16. It passes through the space below each partition plate 22, 18, 22' of the intermediate cylinder 14' and is discharged from the air supply/exhaust port [123' facing the outdoors of the intermediate cylinder 14'. Heat exchange ventilation is performed in this way, but when the temperature of the outside air is below O'C in a cold region during the winter, the heat pipe (denoted by F) that the outside air first comes into contact with and the heat pipes in the vicinity may freeze. Therefore, after using it in this state for a certain period of time, as shown in FIG.
(12'), middle plate 13 (13'), middle cylinder 14 (14
') will be rotated 180 degrees. Then, the direction of rotation of the fan 15, 1, 5' remains the same, but the flow directions of the air supply and exhaust air that hit the heat pipe are reversed, and the indoor warm air hits the heat pipe (F), which is most likely to freeze, first. . Therefore, even if it is frozen, it will be thawed. After a certain period of time has passed in this state, it may be reversed again as shown in FIG. 6 fal.

In this way, by intermittently repeating the operation of reversing the air supply and exhaust ports, freezing can be prevented. No special energy is required to thaw frozen heat pipes, and ventilation does not need to be interrupted for thawing. Furthermore, there is no need to change the rotational direction of the fans 15, 15', and the opening and closing of the air supply and exhaust ports can be easily controlled. The water produced by thawing drips onto the bottom of the element section 16 and is collected in the drain 33 along the slope of the floor surface, so it can be drained at an appropriate time.

Figure 7 shows how the air conditioner is used during summer. In the summer, the heat exchange element itself can be replaced with a humidity exchangeable elmmen in order to dehumidify and take in outdoor air.

Figure 8 fa1. (bl, tel is heat exchange niremen 1
- Here is an example in which a cross-flow element 35 with a honeycomb structure is used. The configuration of other parts is almost the same as the previous example, so the same members are designated by the same reference numerals.

〔Effect of the invention〕

As explained above, the ventilation device according to the present invention is
There is no need to worry about freezing even in cold regions during the winter, and the product is highly practical as it allows constant thermoplastic resin exchange and ventilation.

[Brief explanation of the drawing]

Figures 1, 2, and 3 are explanatory diagrams of a conventional ventilation system, Figure 4 is an exploded view of an embodiment of the present invention, Figure 5 is an explanatory diagram of the installed state, and Figure 6 is a (b) is an explanatory diagram of how to use it, Fig. 7 is an explanatory diagram of how it is used in summer, and Fig. 8 fa
t, (bl, (cl is an explanatory diagram of a different embodiment. 10... Ventilator 11. 11'... Support 12
．． 12'... Cap 13.13'... Middle plate
14.14' intermediate cylinder 15.15' ... fan 1
6... Element part 17... Support shaft 18, 22
．． 22'...Partition plate 19...Fin 20...
Heat pipes 18a, 18a', 22a, 2'2a'
, 13a, 13a', 25a, 25a'...shaft hole 23.23', 26.26'...supply/exhaust port 30
...Wall attorney Patent attorney Takehiko Matsumoto L4θv*TtT, -rF”ELF (Spontaneous) 1. Display of the incident 1981 Patent Application No. 01.2411 2, Name of the invention Ventilation device 3, Amendment Relationship with the patent applicant case Address: 1048 Kadoma, Kadoma City, Osaka Name (5)
83) Matsu Fden 11 Co., Ltd. Representative Representative Director Iku Kobayashi 4, Agent 6, Specification subject to amendment and drawing 7, Contents of amendment (1) "Outdoor" in line 1 of page 3 of the specification Insert rsJ between "close to 1". (2) The following words are inserted between line 7 and line 8 of page 10 of the specification. Even when ventilation is performed without heat exchange, such as at night during the summer, it can be used in the condition shown in Figure 7. (3) The phrase "plastic resin" on page 10, line 15 of the specification is deleted. (4) In the attached drawings, Figure 1 is corrected as shown in the attached sheet.

Claims (1)

[Scope of Claims] fll A ventilation system comprising two ventilation passages serving as air supply and exhaust passages, and each equipped with a heat exchange element for exchanging heat between both ventilation passages and a fan for forcing air into both ventilation passages. Ventilation device, characterized in that both ventilation paths are capable of reversing the flow of supply air and exhaust air impinging on the respective heat exchange elements. (2) A patent claim in which both ventilation paths are capable of reversing the flow of supply air and exhaust air hitting each heat exchange element by orienting the respective supply and exhaust ports toward the indoor side or the outdoor side. Ventilation equipment according to item 1 in the scope of . (3) The ventilation device according to claim 2, wherein the flow is reversed by a cylinder having a partition.