JPH09257268A - Fancon vector - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a fan convector capable of creating a comfortable living space by the uniformity of indoor temperature and preventing dew condensation due to changes in weather conditions. When T _d <T _O (T _d = dew point temperature of indoor air; T _O = outside air temperature), the damper 14 is moved to the closed position of the second air passage D, and the lower lower lateral blow-out port 116.
Heating is performed only by blowing hot air from. T _d ≧ T _O
And when the room temperature T _I is equal to or higher than the set temperature,
The damper 14 is moved to the closed position of the first air passage C, the warm air blown out from the upward outlet 117 is maximized, and the air stays at the contact position with the window glass 3 and is cooled to the dew point temperature T _d or lower. Prevent dew condensation. When T _d ≧ T _O and T _I is lower than the set temperature, the damper 14 is moved to a position corresponding to the difference between T _d and T _O so that both indoor heating and prevention of dew condensation are satisfied. Air outlets 116 and 11
Set the hot air blowing ratio of 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to indoor cooling and heating technology, and more particularly to a fan convector capable of preventing dew condensation and freezing of window glass and the like in a cold region in winter and improving heating efficiency.

[0002]

2. Description of the Related Art An air conditioner for maintaining a comfortable temperature in an environment such as a living space or an open space is composed of an air conditioner installed outdoors and a fan convector installed indoors. The heat source of the air conditioner is used in summer and winter. For example, there is an indirect cooling / heating system that performs cooling and heating by switching between cold water and hot water. For example, in heating, hot water is supplied to the convector body (heat exchanger) in the fan convector from the boiler, which is the heat source, through the supply pipe, and heat is exchanged with the air taken in the fan convector, and then passes through the return water pipe. Return to the boiler. The temperature of hot water supplied from the boiler to the convector body is 80 to 90 ° C, and the temperature when exiting the convector body is 10 to 20 ° C after radiating heat by heat exchange.
The air heated by the convector body is blown into the room by the blower and forcedly circulates in the room space.

In the case of air conditioning equipment in cold regions, there are few opportunities to perform cooling even in the summer, and the period required for cooling is short, while the period required for heating tends to be long in winter.
Especially in winter, in consideration of the climatic environment, heating is performed so that the indoor temperature and humidity are uniform, but in cold regions, the outside temperature at night is significantly lower than the indoor temperature, for example − The temperature may drop to around 10 ℃ or -20 ℃, and as a result, the indoor air that is in contact with the surface of window glass is cooled to below its dew point temperature and condensed (condensation), or this condensed water freezes. I have something to do. In order to prevent such condensation and freezing of the condensation water, an embedded or exposed fan convector is installed in the perimeter zone near the outer wall, and hot air is blown upward along the surface of the window glass etc. Is effective. Some fan convectors of this type are provided with an upward blow-out port or a horizontal blow-out port exclusively, or those capable of blowing both upward and sideward.

[0004]

The following problems are pointed out in the fan convector in the conventional air conditioner. (1) When a fan convector for upward blowing and a fan convector for horizontal blowing are used together to prevent heating and dew condensation, the fan convector for upward blowing has some effect of preventing dew condensation on window glass, etc. However, there is a problem that only the upper space in the room is heated first by the forced draft and draft effect of the air, and it takes time for the heating to rise and the room temperature is uniform in the fan convector designed for horizontal blowout. There is a problem that it lacks. (2) In the case of a fan convector capable of blowing both upward and sideways, a fan (blower) is installed with its discharge port facing diagonally upward, and a half-rotation damper installed in front of the discharge port. Although the wind direction is adjusted upward or sideways by the method, the air direction is adjusted at a constant air flow rate, and the air flow rate cannot be adjusted according to dew condensation prevention conditions. (3) The higher the water vapor density in the air, the higher the dew point temperature of the air.Therefore, when humidifying to prevent indoor drying due to heating, changes in the outside air temperature and the amount and direction of warm air are blown out. Depending on the situation such as the above, the condensation may be promoted on the contrary.

The present invention has been made under the circumstances as described above, and its technical problem is that the air is blown to the perimeter zone and the hot air is blown to the floor at the same time. It is an object of the present invention to provide a fan convector that can create a comfortable living space due to the uniformity of temperature and can effectively prevent dew condensation due to changes in weather conditions.

[0006]

The above-mentioned technical problems are as follows.
This can be effectively solved by the present invention. That is, the fan convector according to the present invention includes a convector main body for performing heat exchange between the heat medium supplied from the heat source and the air taken in from the room through the air inlet of the airframe case and the heat exchange in the airframe case. A blower that blows air in a certain direction is provided, and from a discharge port of the blower to a first air blow passage extending toward a lateral air outlet that is opened in the lower part of the body case, and an upward air outlet that is opened in the upper part of the airframe case. A second air blow passage extending toward the second air blow passage is formed so as to face the discharge port at the air blow branch portion between the first air blow passage and the second air blow passage and to close the first air blow passage and the second air blow. The damper is arranged so as to be selectively moved by the drive means in the direction of closing the road.

According to the fan convector of the present invention, the room air taken into the airframe case from the intake port is heated by the heat medium, such as hot water or cold water, flowing inside the convector body when passing through the convector body. It is heated or cooled by exchange. The air heated or cooled by the main body of the convector is sent from the discharge port of the convector to the blast branch section of the first blast channel and the second blast channel, and further the first blast is provided by the damper arranged in this blast branch section. The air is sent to the air passage or the second air passage, and is blown into the room from the sideward air outlet or the upward air outlet through the first air passage or the second air passage.

Further, since the opening ratio of the first air passage side and the second air passage side in the air blowing branch portion is set by the position of the damper in the air blowing branch portion, the amount of air blown from the sideward air outlet and the upward air outlet is adjusted. It can be adjusted arbitrarily. For example, in heating in winter, in order to prevent dew condensation on the window glass and freezing of the dew condensation water, increasing the ratio of warm air blown out from the upward outlets, air on the surface of the window glass, etc. Are prevented from accumulating and being cooled below the dew point temperature, and the temperature of the surface is increased.

As a driving means for moving the damper, for example, a female screw portion is provided on the damper, and the female screw portion is screwed into a ball screw which is normally and reversely rotated by a servomotor. That is, in this case, the damper is forward or reversely rotated by the servomotor in the forward and backward directions along the axial direction of the ball screw together with the female screw portion screwed to the ball screw branch portion to the first blower passage side or the second blower passage side. Be promoted towards.

Further, the drive means for moving the damper is controlled in drive by the control means for calculating the control value based on the measurement data from the indoor temperature / humidity measuring means and the outside air temperature measuring means. For example, during heating, the dew point temperature T _d (in the air) of the indoor air obtained from the relative humidity measured by the indoor temperature / humidity measuring means (the ratio of the saturated water vapor density depending on the air temperature to the water vapor density in the air) When the water vapor density is ω, the temperature at which ω is the saturated water vapor density),
The position of the damper is controlled according to the difference between the outside air temperature T _O measured by the outside air temperature measuring means and the indoor temperature T _I , whereby the warm air blown out from the sideward air outlet and the upward air outlet is heated. The air flow rate is adjusted to an appropriate level to improve the temperature and prevent dew condensation on the surface of the window glass.

More specifically, for example, when T _d <T _O , there is no risk of dew condensation, so heating is mainly performed by blowing hot air from the lateral air outlet. When T _d ≧ T _O and the room temperature T _I is equal to or higher than the set temperature, the amount of warm air blown from the upward outlet toward the surface of the window glass or the like is increased to prevent dew condensation. Further, when T _d ≧ T _O and the indoor air temperature T _I is lower than the set temperature, the warm air blowing ratios of the lateral air outlet and the upward air outlet are appropriately set according to the difference between T _d and T _O. It

[0012]

1 and 2 show a preferred embodiment of a fan convector 10 according to the present invention. The fan convector 10 is of a floor-standing type, and has a rectangular parallelepiped vertical body case 11 and a partition wall 111.
To 114, the heat exchange chamber A, the chamber B below the heat exchange chamber A, the first air passage C below the chamber B,
A second air passage D extending along the back side of the chamber B and the heat exchange chamber A, and an air blowing branch E between the first air passage C and the second air passage D are formed. An intake port 11 facing the upper space A ₁ of the heat exchange chamber A is provided at the upper front of the airframe case 11.
5 is opened, a lower lateral air outlet 116 facing the end space of the first air duct C is opened at the lower end of the front of the airframe case 11, and the end space of the second air duct D is formed in the rear of the upper surface of the airframe case 11. An upward air outlet 117 is opened. The intake port 115 is provided with a detachable filter 115a, and the lower lateral air outlet 116 is provided with a louver 116a capable of displacing the elevation angle. Further, the front portion of the machine body case 11 includes a panel 118 that can be opened and closed.

In the heat exchange chamber A, a convector body 12 and a blower 13 below it are arranged. The convector body 12 is composed of a heat radiation (heat absorption) tube through which hot water or cold water passes, and a large number of fins formed around it.
It is provided below the intake port 115 so as to partition the heat exchange chamber A into an upper space A ₁ and a lower space A ₂ , and air can pass from the upper space A ₁ to the lower space A ₂ . The blower 13 is fixed on the partition 112 between the chamber B and the suction port 131 facing the lower space A ₂ and the discharge port 132 facing the chamber B.

The partition wall 113 for partitioning the lower side of the chamber B is
The position corresponding to the blowing direction of the discharge port 132 of the blower 13 is opened by the opposing swash plates 113a and 113b, and the lower side thereof is the blowing branch portion E of the first blowing path C and the second blowing path D.
It has become. The blower branch portion E is closed in the direction in which it closes the first swash plate 113a on the front side and closes the first blower path C side, and closes in the opposite swash plate 113b on the back side and closes the second blower path D side. In the direction, a damper 14 is arranged which is selectively moved by a drive device 15.

The damper 14 is installed in the air blow-out branch portion E to face the swash plate 1.
As shown in FIGS. 3 to 5, the drive device 15 for moving the blower branch portion E toward the side 13a or the opposite swash plate 113b side.
A ball screw 151 extending in the moving direction of the damper 14 in a space 15a defined by the lower partition wall 114.
A servo motor 152 for rotating the ball screw 151 around its axis in the space 15a, and a female screw portion 153 screwed into the ball screw 151. The ball screw 151 is supported substantially horizontally by the bearings 151a and 151b, and the female screw portion 153 has the partition wall 114.
The slit 114 formed in parallel with the ball screw 151
It is integrally connected to the lower surface of the damper 14 via a connecting plate 154 penetrating a.

The damper 14 has a swash plate 1 facing the front and the back.
13a and 113b, each of which has a triangular prism shape extending in a direction (a frontage direction of the body case 1) orthogonal to the moving direction, and a driving device is provided at a lower portion near both ends in the longitudinal direction. Guide portions 16 for smoothing the movement by 15 are provided respectively. The guide portion 16 is fixed on the partition wall 114 and extends in a direction (moving direction) orthogonal to the longitudinal direction of the damper 14.
61 and the rail 14 which is integrally provided on the lower part of the damper 14.
The rail 161 has a movable range of the damper 14 or a length longer than the range.

FIG. 6 shows an example of the indoor layout of the fan convector 10 in the above-described embodiment. Reference numeral 1 is an outer wall of the building, 2 is a floor surface, 3 is a window glass provided on the outer wall 1,
4 is a curtain attached inside the window glass 3, and 5 is a door. The fan convector 10 is located in the perimeter zone PZ below the window glass 3 in the indoor space S and is installed on the floor surface 2. This fan convector 10
When heating the room by means of air, as shown by the thick arrows in FIGS. 2 and 6, the air in the room is taken into the upper space A ₁ of the heat exchange chamber A in the airframe case 1 from the intake port 115,
At this time, fine dust floating in the air is generated by the filter 11
Adsorbed on 5a. The air taken into the upper space A ₁ passes through the gaps between the fins of the convector body 12 toward the lower space A ₂ of the heat exchange chamber A, and in the process, flows inside the convector body 12 It is heated by heat exchange with circulating hot water. The heated air is blower 1
3 is sent from the discharge port 132 through the chamber B to the air blast branch E between the first air blast path C and the second air blast path D, and in this air blast branch E, the damper 14 causes the first air blast path C and The air is diverted to the second air passage D, and is blown into the indoor space S from the lower lateral air outlet 116 and the upward air outlet 117.

Here, the damper 14 is shown in FIG.
As shown by 4 ′, when the second blower path D side is closed by coming into contact with or close to the rear facing swash plate 113 b, the warm air from the chamber B passes through the first blower path C. It is blown out from the lower sideward air outlet 116 into the indoor space S along the floor surface 2. In addition, the damper 14 is shown in FIG.
As shown by 4 ″, when the first air passage C side is closed by coming into contact with or close to the opposed swash plate 113a on the front side, the warm air from the chamber B passes through the second air passage D. The air is blown upward from the upward outlet 117 into the indoor space S along the outer wall 1 and the window 3. Further, the damper 14 is provided between the opposing swash plates 113a and 113b as shown by the solid line in FIG. In this case, the warm air from the chamber B is divided into the first air passage C and the second air passage D, and is blown out from both the lower sideward air outlet 116 and the upward air outlet 117, and the warm air from the lower sideward air outlet 116 and the upper side air outlet 116 is directed upward. The blowout ratio with the air outlet 117 changes depending on the opening area of the blower branch portion E depending on the position of the damper 14 on the first blower path C side and the second blower path D side.

In summer cooling, cold water is supplied into the heat dissipation (heat absorption) pipe of the convector body 12, and the air taken into the heat exchange chamber A through the intake port 115 passes through the convector body 12 in the process. To be cooled. Furthermore, the cooling air sent by the blower 13 to the blower branch portion E is blown out to the indoor space S by the damper 14 mainly from the second blower path D through the upward blowout port 117.

In the winter heating, for example, when the temperature T _I of the indoor space S is 20 ° C. and the relative humidity is 30% (water vapor density = 5.2 g / m ³ ), this 5.2 g /
Since the dew point temperature T _d of the room air having a saturated water vapor density of m ³ is about 1 ° C., if the air comes into contact with the surface of the window glass 3 or the like and is not cooled to 1 ° C. or less, dew condensation will not occur However, if the relative humidity of the indoor air becomes, for example, 50% (water vapor density = 8.7 g / m ³ ) due to humidification to prevent indoor drying, the dew point temperature T _d becomes approximately 9 ° C. Since the temperature rises, dew condensation will occur at the time of cooling to 9 ° C. Therefore, in this embodiment, as shown in FIG. 7, an indoor sensor 171 that measures the indoor temperature T _I and humidity is installed at a predetermined location in the room, and an outdoor temperature sensor that measures the outdoor temperature T _O outside the building. The rotation direction and the rotation angle of the servo motor 152 of the drive device 15 for installing the 172 and moving the damper 14 are controlled via the control device 17 based on the measurement data from the indoor sensor 171 and the outside air temperature sensor 172. It has become so. In addition, the indoor sensor 171 is
It is also used as a temperature detecting unit for setting the indoor temperature, that is, the cooling / heating operation of the fan convector 10 is performed based on the measurement data of the indoor sensor 171 so that the indoor temperature falls within a preset temperature range. Controlled.

According to the above configuration, the outside air temperature sensor 172.
The outside air temperature T _O measured at is higher than the dew point temperature T _d obtained from the value measured by the indoor sensor 171 (T _d <T
_{In the} case of _O ), since dew condensation does not occur on the surface of the window glass 3, the control device 17 controls the drive of the servomotor 152 so as to move the damper 14 to the position where the second air passage D side is closed. As a result, heating is performed only by blowing warm air from the lower horizontal outlet 116.

Further, when T _d ≧ T _O , the room temperature T
_{When I} is equal to or higher than the set temperature, the drive of the servomotor 152 is controlled so as to move the damper 14 to the position where the side of the first air passage C is closed, whereby the warm air is blown from the upward air outlet 117. Maximum in this case,
For example, since a large amount of warm air is blown between the window glass 3 and the curtain 4 in FIG. 6, air does not stay at the contact position with the window glass 3 and is cooled to the dew point temperature T _d or lower. Moreover, since the window glass 3 itself is warmed by the warm air, dew condensation is effectively prevented.

Further, when T _d ≥T _O , the room temperature T _I
Is less than the set temperature, the temperature difference between T _d and T _o ,
Set the damper 14 according to the ratio of the temperature difference between the temperature and the indoor temperature T _I is moved opposite the swash plate 113a, between 113b, the lower lateral outlet 116 so as to satisfy both the prevention of dew condensation and the room heating And the warm air blowing ratio of the upward air outlet 117 is set.

The fan convector according to the present invention can be applied to either an exposed type which is exposed and installed indoors or an embedded type which is built in the perimeter counter 6 as shown in FIG. Moreover, aspects such as the intake port 115, the lower sideward air outlet 116, and the upward air outlet 117 are not particularly limited.

[0025]

According to the fan convector according to the present invention, the following effects are realized. (1) During heating, the warm air is blown into the room from both the lateral outlet and the upward outlet, so that the indoor air is stably stirred and the indoor temperature becomes uniform,
A comfortable living space is created. (2) Since the air volume at the sideward air outlet and the upward air outlet can be appropriately adjusted by the damper, efficient heating or cooling can be performed and energy saving can be achieved. (3) Since the operation of the damper that adjusts the warm air blowing ratio from the lateral outlet and the upward outlet is controlled based on the temperature of indoor air, the dew point temperature, and the outside air temperature, the indoor temperature is kept comfortable and Condensation on the surface of window glass or the like can be effectively prevented.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a floor-standing fan convector according to a preferred embodiment of the present invention.

FIG. 2 is a cross-sectional view schematically showing the internal structure of the above embodiment.

FIG. 3 is a plan view showing a damper and a drive device thereof in the above embodiment.

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

5 is a cross-sectional view taken along line VV in FIG.

FIG. 6 is an explanatory diagram showing an example of the indoor layout of the fan convector of the above embodiment.

FIG. 7 is a schematic explanatory diagram showing a control system of the damper driving device in the embodiment.

[Explanation of symbols]

 10 Fan Convector 11 Aircraft Case 115 Inlet 116 Lower Sideward Air Outlet 117 Upward Air Outlet 12 Convector Main Body 13 Blower 14 Damper 15 Drive Device 151 Ball Screw 152 Servo Motor 153 Female Screw Part 16 Guide Part 17 Control Device (Control Means) 171 Indoor Sensor (indoor temperature / humidity measuring means) 172 Outside air temperature sensor (outside air temperature measuring means) C First air blow passage D Second air blow passage E Air blowout branch portion

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[Procedure amendment]

[Submission date] July 16, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0002

[Correction method] Change

[Correction contents]

[0002]

2. Description of the Related Art An air conditioner for maintaining a comfortable temperature in an environment such as a living space or an open space is composed of an air conditioner installed outdoors and a fan convector installed indoors. The heat source of the air conditioner is used in summer and winter. For example, there is an indirect cooling / heating system that performs cooling and heating by switching between cold water and hot water. For example, in heating, hot water is supplied to the convector body (heat exchanger) in the fan convector from the boiler, which is the heat source, through the supply pipe, and heat is exchanged with the air taken in the fan convector, and then passes through the return water pipe. Return to the boiler. The temperature of hot water supplied from the boiler to the main body of the convector is 55 to 65 ° C , and the temperature when exiting the main body of the convector is 45 to 55 ° C after heat dissipation by heat exchange.
The air heated by the convector body is blown into the room by the blower and forcedly circulates in the room space.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigenito Higo 4-6-15 Sendagaya, Shibuya-ku, Tokyo Fujita Co., Ltd. (72) Masatoshi Nakatsubo 28-1 Nishianba, Shizukuishi-cho, Iwate-gun, Iwate Prefecture -22 (72) Inventor Kiyotaki Tamon 4-4-2, Higashiyamahonmachi, Yao City, Osaka Prefecture

Claims (4)

[Claims] 1. A convector main body for performing heat exchange between a heat medium supplied from a heat source and air taken in from the room through an intake port of the body case, and the heat-exchanged air in a fixed direction. A blower for blowing air to the first blower passage extending from a discharge port of the blower to a lateral air outlet opening in the lower portion of the body case and a first air duct extending toward an upward air outlet opening in the upper portion of the body case. Two air blow passages are formed in a branched manner, and a blow air branch portion between the first air blow passage and the second air blow passage faces the discharge port and closes the first air blow passage and the second air blow passage. A fan convector provided with a damper that is selectively moved in a direction by a driving means. 2. The damper according to claim 1, wherein the damper is moved so as to increase or decrease the opening area on the first air passage side and the opening area on the second air passage side in the air blowing branch portions of the first air passage and the second air passage. A fan con vector that is characterized by 3. The drive means for moving the damper according to claim 1 or 2, wherein the ball screw extends in the moving direction of the damper, and the ball screw rotates forward and backward around its axis. A fan convector comprising a servomotor and a female screw portion provided on the damper and screwed into the ball screw. 4. The drive according to claim 1, wherein the drive means for moving the damper is controlled via the control means based on the measurement data obtained by the indoor temperature / humidity measuring means and the outside air temperature measuring means. A fan convector characterized by being played.