JPH0758129B2 - Radiant heat radiator device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention includes a coil for direct expansion such as refrigerant natural circulation,
The present invention relates to a radiator device that requires latent heat treatment (evaporative cooling) as well as sensible heat, such as an air conditioner for air conditioning and a circulation air conditioner.

[Conventional technology]

Conventionally, sensible heat and latent heat treatment (evaporative cooling) are roughly divided into the following two methods.

(1) A method of combining a water spray device and a condensing coil in order to reduce the heat transfer area of the condensing coil for direct expansion in high-temperature / low-temperature regions, and to extend the operating period of the cooling device by natural refrigerant circulation and improve the coil capacity.

(2) As shown in FIG. 8, a radiator (condensing coil) h of a refrigerant natural circulation system and a water spray device s are attached to the air conditioner, the radiator h performs sensible heat treatment, and the water spray device s A method of performing latent heat treatment with a sprayer m. In the figure,
A ₁ is outside air, f is a filter, r is a cooling coil, k is a heating coil, S is a blower, j is an evaporator coil of a refrigerant natural circulation system, and c is a cold water system.

[Problems to be Solved by the Invention]

However, these conventional methods have the following problems.

In the method (1), a. Since the absorption distance for completely absorbing the water spray water into the air is required, the device becomes large.

b. Large amount of water is required due to low saturation efficiency.

c. If water is sprayed when the outside air temperature is low, the medium freezes.

d. It takes time to dry the media.

e. When the outlet air of the condenser coil is reused for air conditioning,
Reheat required.

In the method (2), the terms a and b are the same as in the method (1).

c. Condensation occurs in the chamber and duct due to oversaturated air due to overhumidification.

d. The hot water temperature for radiator must be high in order to compensate for the temperature drop due to water spray.

The present invention has been made in view of the above circumstances. Not only can sensible heat treatment and latent heat treatment be performed by a compact device, but also media freezing at a low temperature of the intake outside air can be prevented, and the device operation can be stopped. In order to improve the latent heat utilization rate, it is possible to dry the media quickly, and to provide a radiator that can be widely used by starting and stopping the pump and switching the water supply. In addition, it is an object of the present invention to obtain a radiator device using latent heat that can be used at low temperature.

[Means for Solving the Problems]

The radiator device utilizing latent heat according to the present invention comprises an evaporation medium for receiving water from the upper portion of the radiator, and a heat radiation portion provided with a meandering heat radiation tube in the central longitudinal direction thereof, and further, the heat radiation portion As a unit, partition fins having a water draining mechanism that allows ventilation are sequentially installed as boundaries.

[Action]

Since the radiator device utilizing latent heat of the present invention provides a radiator provided with a radiator part that serves as both a radiator by a heat medium and an evaporation medium of a vaporization type humidifier, one radiator can
Not only can cooling, heat radiation, and humidification be performed on the intake air at the same time, but since the vapor-liquid contact area of water and air can be made large by the evaporation medium, saturation efficiency can be improved and water can be saved.

In addition, a plurality of the heat radiating portions are provided in a single housing so that the heat can be widely used by starting and stopping the pump and switching the water supply, and the latent heat can be used at low temperature.

〔Example〕

Hereinafter, a single type latent heat utilizing radiator device (hereinafter referred to as "radiator device") Hs according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2.

This radiator device Hs has a casing K, which has been conventionally used, as shown in the schematic configuration diagram in which the main part of FIG.
The heating medium inlet Ci is connected to the lower heating medium inlet Ci that feeds the heating medium F to the inside, and the heat dissipation tube C that rises in a meandering shape is provided inside the upper heating medium inlet Ce.
Radiator H that heats the outside air A _{1 taken} in as a structure
Then, the water w in the water tank W is sent by the pump P to the upper part of the vaporization type humidifier J which is filled with the evaporation medium M and placed on the water tank W, and is made to flow down in the medium M to humidify the outside air A ₁ . It is a combination of a vaporization type humidifier J and one unit.

That is, in this radiator device Hs, the radiator 1 is
The water distribution part 3 is located above the housing 2, and the heat dissipation part is located below the water distribution part 3.
2A is provided. The heat radiating portion 2A is formed by filling the housing 2 with the evaporation medium 4 and combining a heat radiating tube 5 formed in a meandering shape with the long portion placed horizontally in the central vertical direction of the medium 4. Further, a heat medium inlet 6i and a heat medium outlet 6e are attached to the lower portion and the upper portion of the housing 2, respectively, and are connected to both ends of the heat radiation tube 5.

On the other hand, a makeup water pipe 7 for supplying cooling water w is guided to a water tank W having the radiator 1 mounted at one end, and the stored water w is distributed by the pump P via a water supply pipe 8. It is of a cooling water circulation type that is sent to the portion 3 and flows down in the housing 2 to return to the water tank W. Reference numeral 10 is a drain pipe.

Further, the water supply system to the evaporation medium 4 is preferably a dripping system as in the present embodiment using a lower water tank W and a pump P in order to save water and prevent media contamination and accumulation due to impurities.

With the above-described configuration, as shown in FIG. 2, the outside air A ₁ sucked into and passing through the radiator ₁ is the water w that flows down in the evaporation medium 4 in the area 1a in front of the radiator tube 5.
The latent heat treatment is performed by the evaporative cooling of the heat radiation tube, and the area 1b including the heat radiation tube 5 is heated by the heat radiation of the tube 5. In the rear area 1c, the adiabatic humidification is performed, so that it flows out. The air A ₂ is heated and humidified. The outside air A ₁ passing through the evaporation medium 4 comes into contact with the surface of the evaporation medium 4 moistened with the cooling water w and is humidified by evaporation, so that energy is not consumed for the humidification itself and the amount of water used. Is very small.

Next, as a second embodiment, the double type radiator device Hw is
It will be described with reference to FIGS. The same members and the like as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

In the radiator device Hw, as shown in the schematic sectional view of the main part of FIG. 3, the radiator 11 is the same as the radiator 1 of the first embodiment.
It's like a stand-up polymerization and coalescing.

That is, the inside of the housing 12 has a water distribution part 13 completely blocked at the top.
A and 13B are provided, and the lower part is the front heat dissipation part 12A and the rear heat dissipation part 12B.
The boundary between the two 12A and 12B is partitioned by a partition fin 12F having a water draining function that allows ventilation.

Then, the evaporation media 14 is provided on each of the front and rear heat dissipation parts 12A and 12B.
The meandering heat radiation tubes 15A and 15B, which are filled with A and 14B and are provided in the central longitudinal direction, respectively communicate with the heat medium inlet 6i and the heat medium outlet 6e.

Further, a water supply pipe 8 for sending water w from the water tank W by the pump P.
Is a bifurcated branch water supply pipe 9 at the end of the valve
It is connected to the water distribution units 13A and 13B via Va and Vb, and other configurations are almost the same as those in the first embodiment.

The operation of the above configuration will be described based on the moist air diagram tx shown in FIG. In order to simplify the description, the names of members and the like are shown only by reference numerals. In addition, ○ in the section in the figure
Indicates ON or valve open, and × indicates OFF or valve close.

In the case of Fig. 1 (1), the pump P is stopped and the heat medium F is radiated by the heat radiation tubes 15A, 15
When it is sent to B, the outside air A _{1 in} the temperature and humidity of point a in the moist air diagram tx is the heat radiation tube 15A,
Since 15B plays the role of an ordinary radiator, it is heated by the heat radiation and reaches the state of point B.

In the case of (2) in the figure, when P is turned ON, F is turned OFF, and both Va and Vb are opened,
A ₁ reaches from point B to point C, but is cooled and humidified by being moistened with water like an ordinary vaporization humidifier.

In the case of (3) in the figure, when both P and F are turned on and only Va is opened, A ₁ evaporates and cools in the front heat radiating portion 12A and goes from point B to point C, and in the rear heat radiating portion 12B. It is humidified (heat radiation) and changes from point C to point D.

In the case of (4) in the figure, when both P and F are turned ON and only Vb is opened, A ₁ is heated by the front heat radiation part 12A and the temperature rises from point a to point b, and the next rear part The heat radiating portion 12B is adiabatically humidified to be in the state of dot c.

In the case of (5) in the figure, when both P and F are turned ON and Va and Vb are opened, A ₁ is evaporated and cooled from the state of point E in the front heat radiating portion 12A to reach the point, and then the rear portion In the heat radiating portion 12B, the temperature is raised to reach the point G, and the heat is further adiabatically humidified to be in the state of the point G.

As described above, the pump P and the heat medium F are turned on / off or the valve is
The radiator device Hw can be operated under a wide range of conditions by switching between Va and Vb.

Next, as a third embodiment, a multiple-type radiator device Hm
Will be described with reference to FIGS. 5 and 6.

As shown in FIG. 5, the radiator 21 in this radiator device Hm is a partition fin having a draining mechanism for the first unit heat radiating portion 23A and the second unit heat radiating portion 23B from the front in one housing 22. It is internally installed through 22F, and the first unit heat dissipation part 23A is
It is connected to the pair of branch water supply pipes 9a and 9a via valves Va ₁ and Va ₂ at the front and rear positions of the top surface, and similarly, the second unit heat dissipation portion 23B is also connected to the pair of branch water supply pipes 9b and 9b by the valve V
Connected via b ₁ and Vb ₂ . The unit heat dissipation part 23
Needless to say, is composed of the evaporation medium 24 and the heat radiation tube 25.

In addition, when the number of the unit heat radiating portions 23 is increased as required, the partition fins 22F are arranged like the third unit heat radiating portion 23C indicated by the one-dot chain line.
It is enough to intervene with each other in order.

The operation of the radiator 21 in the radiator device Hm configured as described above will be described based on the moist air diagram tx shown in FIG. 6. The outside air A ₁ taken in is the first unit heat radiation as shown in FIG. In the part 23A, the temperature t ₀
It reaches the point ₁ and is then evaporatively cooled to the point n. Then, in the second unit heat radiating portion 23B, the temperature is raised from point No to point No, and further, it is evaporated and cooled to be in the state of point E and sent out as air A ₂ .

However, in the conventional method, as shown in (1) of the same figure, the outside air A ₁ is heated by the heating coil k to a temperature t ₂ from the point C to the point WA, and then by the water spray device s. It is cooled and humidified to become the air A _{2 in} the state of point E.

Therefore, in the conventional method, high temperature water of t ₂ is required to measure the latent heat utilization by evaporative cooling, but this radiator device Hm requires low temperature water of t ₂ −Δt = t _1. Becomes

If the unit heat radiating unit is added, the water temperature t ₁ can be lowered by performing the heating / evaporative cooling action more minutely.

In addition, although the cooling water circulation type is described in each of the above-described embodiments, as shown in FIG. 7, the cooling water w is directly sent to the upper portion of the radiator 1 and is flowed down to be received by the water tank W. Needless to say, the present invention can be applied to the non-circulating radiator device Hs ₁ that removes the water w from the drain pipe 10.

〔The invention's effect〕

As described above, according to the present invention, the radiator of the radiator in the radiator device is configured to integrally combine the evaporation medium and the heat dissipation tube, so that the device is greatly integrated by eliminating the need for a humidification absorption distance. Becomes compact. In addition, the saturation efficiency is improved to save water, and there is no excessive humidification, so no dew condensation occurs. Further, since the heat dissipation part is built in, there is no freezing of the media when the outside air temperature is low, and the media drying time for stopping is short.

Also, by connecting the heat dissipation part side by side and supplying water with a branch water supply pipe equipped with a valve, ON / O of the pump and heat medium
It is possible to operate under a wide range of air conditions by operations such as FF and water supply switching, and it is possible to use latent heat at low temperature water temperature that is easier to cool.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a cross section of a main part showing a first embodiment of a latent heat utilizing radiator device according to the present invention, FIG. 2 is an explanatory view of the action of the radiator, and FIG. 3 is a second embodiment. FIG. 4 is a schematic configuration diagram of a cross section of an essential part showing an example, FIG. 4 is an explanatory diagram of a moist air diagram of the method of use, and FIG. Similarly, Fig. 1 is an explanatory diagram of the action based on the moist air diagram. Fig. 1 (1) is a conventional diagram, Fig. 2 (2) is a diagram of the third embodiment, and Fig. 7 is a cooling water non-circulation type latent heat utilization. FIG. 8 is a schematic configuration diagram of a cross section of a main part showing a radiator device, and FIG. 8 is a schematic configuration diagram of a conventional air conditioner. Hs, Hs ₁ ,, Hw, Hm ...... Heat radiator using latent heat 1,11,21 ...... Heat radiator 2,12,22 ...... Case 2A ...... Heat radiating section 12A ...... Front heat radiating section 12B ...... Rear heat radiating Part 23 …… Unit heat dissipation part 3,13A, 13B …… Water distribution part 4,14A, 14B, 24 …… Evaporation media 5,15A, 15B, 25 …… Heat dissipation tube 6i …… Heat medium inlet 6e …… Heat medium outlet 8 …… Water supply pipe 9,9a, 9b …… Branching water supply pipe 12F, 22F …… Partition fins Va, Vb …… Valves Va ₁ , Va ₂ , Vb ₁ , Vb ₂ … Valves P …… Pump W …… Water tank w …… water

Claims (3)

[Claims] 1. A radiator in which a radiator is mounted on a water tank, and cooling water stored in the water tank is sent to the upper portion of the radiator by a pump through a water supply pipe to flow down, and a radiator from the water supply pipe. Is a non-circulating latent heat radiating device that directly receives water in the upper part of the casing, drains it by flowing it down, and the radiator is provided with a water distribution part in the upper part of the casing, and a heat radiating part in the lower part thereof. A latent heat utilizing radiator device, characterized in that a meandering heat radiation tube, which is filled with an evaporation medium and connects both ends to a heat medium inlet and a heat medium outlet, is provided in a central longitudinal direction of the evaporation medium. . 2. A radiator is provided with a water distribution unit for receiving water from a branch water supply pipe via a valve in an upper part of a single housing, and a draining mechanism capable of aeration is provided under the both water distribution units. The latent heat utilizing radiator device according to claim 1, further comprising a front heat radiating portion and a rear heat radiating portion which are divided by the fins and which are composed of an evaporation medium and a meandering heat radiating tube. 3. A radiator is provided side by side in a housing with a fin having a draining mechanism capable of ventilating a plurality of unit radiators, the unit radiator being provided in each of a pair of branch water supply pipes. Connected via the valve at the front and rear positions on the top surface,
2. The radiator device utilizing latent heat according to claim 1, wherein the radiator device comprises an evaporation medium and a meandering heat radiation tube provided inside.