JPH0623859Y2 - Windproof structure of refrigeration equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a windbreak structure for a refrigeration system capable of preventing the heat exchange capacity of an air-to-air heat exchanger from being deteriorated due to uneven flow due to cross wind. Regarding

(Conventional structure) As shown in FIG. 2, two heat exchangers (3), (3) are arranged in a V-shape on both sides of an upper blower (4) to form a heat exchanger unit ( An outdoor unit having 2) arranged side by side in four rows is used as a condensing unit, but it is said that the high pressure is significantly increased when a lateral wind blows and the condenser capacity is reduced.

That is, 4 lines of a, b, c, d for one system of the refrigeration circuit
While cross fin heat exchangers (3) and (3) having slopes are provided, for example, when a side wind blows on the a surface, a
The side wind passing through the surface hinders the suction of the b surface, and the hot air that has undergone heat exchange on the b surface is further sucked into the c surface,
As a result, the performance of the heat exchanger related to b and c deteriorates.

As a measure for eliminating the adverse effect of uneven flow when receiving a crosswind in this manner, in the technology disclosed in Japanese Utility Model Publication No. 52-35551, at the substantially center in the axial direction of the blower interposed between the heat exchangers, In addition, a partition plate is provided so as to be located between the two heat exchangers, and it is possible to prevent cross wind from flowing to the second and subsequent heat exchangers by this partition plate.

(Problems to be Solved by the Invention) Even though the above-mentioned known technique may be successful in terms of protection against lateral wind intrusion, when it is applied to a V-shaped heat exchanger unit as shown by a broken line, for example, in FIG. Compared to the heat exchanger a on the outside, the amount of suction of the heat exchanger b is smaller and a difference in performance occurs, and the heat exchanger b and the heat exchanger c are
When the air flow between the corresponding blowers is not balanced, a considerable amount of uneven flow may occur, adversely affecting the heat exchange capacity, and it is therefore not easy to maintain high operating efficiency during normal operation. .

In order to cope with such a problem, the present invention adopts a structure in which two kinds of windbreak plates having a simple structure are attached, so that not only measures against crosswind but also stable maintenance of heat exchange capacity during steady operation can be achieved. Therefore, it is possible to improve the operation efficiency at low cost.

(Means for Solving Problems) Therefore, as is apparent from the embodiments, the present invention has two heat exchangers (3) and (3) provided on both sides of the blower (4) with an upper blower so that the lower mutual In a refrigerating apparatus having at least two rows of heat exchanger units (2) that are in contact with each other and are arranged in a V-shape with the maximum distance from each other, the heat exchanger units (2) at both ends that directly receive cross wind , (2) and its adjacent heat exchanger unit
Heat exchangers (3), which face each other in an inverted V shape between (2) and (2),
High windbreak plates (5) capable of forming a substantially symmetrical center plane of (3) are respectively erected, while each heat exchanger unit (2), (2) has both heat exchangers (3), ( From the contact lower part of 3) to the heat exchanger (3), (3) height less than half of the height, low windbreak plate (6) rising up toward the axial center of the blower (4) is installed respectively. It is characterized by being

(Operation) Since the present invention is provided with the high windbreak plate (5), the cross wind is directly affected only by the heat exchanger units (2) at both ends, and the inner ones are not affected at all. Normal air flow is smoothly performed, and stable heat exchange capacity is maintained.

In addition, the low windbreak plate (6) is for partitioning the lower part starting from the contact lower part of the adjacent heat exchangers (3), (3),
This part is the place where the wind speed of the blower (4) is the slowest, and it is the part that is most affected by the crosswind, so this low windbreak plate (6) functions as a straightening plate, and the blower ( The air can be evenly sucked into 4), and it functions sufficiently to prevent uneven flow.

(Example) Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the present invention in which a machine room accommodating a compressor (1), a receiver, an accumulator and the like in two systems is provided at the bottom with four heat exchanger units (2) (2). ) Are arranged in the upper part of the refrigerating apparatus.

The heat exchanger units (2) are arranged side by side in four rows, two adjacent to each other.
Two groups of refrigerating circuits are formed by connecting each group in parallel to each group of refrigerating equipment, and heat exchangers (3), (3) of each heat exchanger unit (2), (2) are formed. Is used as a capacitor.

Each heat exchanger unit (2), (2) has the same shape,
The cross-fin heat exchangers (3), (3) are fixed to the casing in an axially vertical upper blow-out system, and one or more blowers (4) are sandwiched between the lower parts on both sides and the upper part is connected. Has a well-known structure in which the heat exchanger units (2) are arranged in a V shape so as to be separated from each other by a maximum distance. A heat exchanger that crosses in a V shape by sucking air from the side by driving the blowers (4) and (4) with the side surface serving as a suction opening with a grill and the top serving as a blowout opening ( After passing 3) and (3), it turns around and blows upward from the outlet.

In the refrigeration system having the above-mentioned structure, a high windbreak plate (5) is erected upright between the heat exchanger units (2), (2) arranged in two horizontal rows of each system. The plate (5) functions as a partition plate that partitions adjacent heat exchanger units (2) and (2), and has a substantially symmetrical center with respect to the heat exchangers (3) and (3) that face each other in an inverted V shape. The heat exchanger (3) is vertically arranged so as to form a surface over the entire width in the horizontal direction and the entire height in the vertical direction.

As the high windbreak plate (5), a hard synthetic resin plate such as an acrylic resin plate can be used in addition to a metal plate such as an iron plate.

The refrigeration apparatus is further provided with a low windbreak plate (6) capable of exhibiting a windbreak function in combination with the high windbreak plate (5), but this low windbreak plate (6) is used for each heat exchanger unit ( 2), (2)
And heat exchangers (3), (3) facing each other in a V shape
The vertical shape of the heat exchangers (3), (3) is less than half the vertical height of the heat exchanger (3), and is formed in a horizontally elongated plate body. It

The low windbreak plate (6) is erected vertically along a substantially symmetrical center plane with respect to the heat exchangers (3), (3) facing each other in a V shape, and by doing so, the axial center of the blower (4) is formed. In this case, the height of the low windbreak plate (6) is
(4) When driving, the suction airflow passing through the heat exchanger (3) should have an effective height that can face the passage area of the airflow with the slowest wind speed. It has been experimentally revealed that the

The refrigerating device having the above configuration is, for example, in the case of an outdoor unit, is installed as an outdoor unit and is used as a cooling device by being connected to an indoor unit provided indoors, and each heat exchanger (3), (3)
Is a condenser that releases the heat of condensation of the refrigerant to the outside.In this case, of the air flow sucked into the blower (4), the low windbreak plate (6) is the lowest wind speed at the bottom. Since it is provided and partitions the merging portion after approaching from two opposite directions, it has a rectifying function to evenly suck, and as a result, at the lower end of each heat exchanger (3), (3). The uneven flow of air can be eliminated to achieve stable maintenance of heat exchange performance.

If a cross wind blows while the outdoor unit is in operation,
This low windbreak plate (6) blocks the crosswind that the passing wind speed of the heat exchanger (3) at the end position passes through the lower end and blows the blower (4).
As a result of diverting the air flow to the upper side close to, the lower end of the heat exchanger (3) adjacent to it is not affected by the cross wind.

On the other hand, the cross wind blown to the middle and upper ends of the heat exchanger (3) at the end position is mostly blown by the blower (4) by the attracting action of the blower (4) before reaching the adjacent heat exchanger (3). Since the direction of turning upwards, the heat exchanger (3) adjacent to the heat exchanger (3) is not easily affected by the cross wind. Therefore, as described above, "a"
There is almost no problem that the hot air passing through the surface reaches the “b” surface and the heat exchange performance is deteriorated, and even if there is, it is slight.

Further, when the cross wind is considerably strong, even if the second heat exchanger (3) from the end cannot avoid the influence, the high windbreak plate is used.
Since the (5) is provided, this cross wind does not hit the heat exchanger unit (2) in the second row from the end.

Thus, the low windbreak plate (6) obstructs the passage of crosswinds and acts as a rectifier, and the V-shaped heat exchangers (3), which face each other,
While preventing air drift phenomenon between (3), high windbreak plate (5) is 2
It functions to eliminate the effect of crosswind on the heat exchanger units (2) after the th.

(Effect of the Invention) According to the present invention, since the low windbreak plate (6) is provided in association with the lower part of the heat exchanger (3), which is a place where cross wind easily passes, two rows from the end are provided. The low windbreak plate (6) prevents the crosswind from blowing through the heat exchanger (3) after the eyes and prevents uneven flow, so that the heat exchange performance is not deteriorated.

Further, since this low windbreak plate (6) is provided corresponding to the place where the suction air flow velocity is the slowest, there is no problem such as increasing the suction air resistance to the blower (4) and causing a drift. It is possible to maintain stable heat exchange performance during normal operation.

In addition, since the low windbreak plate (6) is not partitioned, the upper part is the part where the attractive force of the blower (4) acts, so even if cross wind blows through the outermost heat exchanger (3). By flowing to the blower (4) side by the time it reaches the next heat exchanger (3), there is almost no influence of cross wind on the heat exchanger (3) in the second and subsequent rows.

Even if there is a strong crosswind, the next high windbreak plate (5)
Completely shuts off the heat exchangers (3) in the third and subsequent rows against crosswind, so it has a double windbreak function.

Thus, the present invention improves the operating efficiency of the refrigeration system, that is, improves the energy effective ratio, and has the excellent effect of eliminating the influence of disturbance and expanding the range of use.

[Brief description of drawings]

FIG. 1 is a schematic structural diagram according to one embodiment of the present invention, and FIG. 2 is a schematic structural diagram of a conventional refrigeration system. (2) …… Heat exchanger unit, (3) …… Heat exchanger, (4) …… Blower, (5) …… High windbreak plate, (6) …… Low windbreak plate,

Claims (1)

[Scope of utility model registration request] 1. A heat system comprising two heat exchangers (3), (3) arranged in a V shape in which lower parts are in contact with each other and upper parts are separated from each other on both sides of an upper blower (4). In a refrigeration system having at least two rows of exchanger units (2) arranged side by side, the heat exchanger units (2), (2) at both ends directly receiving a cross wind and the heat exchanger units (2), (2) adjacent to the heat exchanger units (2), (2) ), A high windbreak plate (5) capable of forming substantially symmetrical center planes of the heat exchangers (3), (3) opposed to each other in an inverted V shape is erected upright, while each heat exchanger unit
(2), (2) is the shaft of the blower (4) from the contact lower part of both heat exchangers (3), (3) to a height less than half the height of the heat exchangers (3), (3) A windbreak structure for a refrigeration system, characterized in that low windbreak plates (6) standing up toward the center of the direction are respectively installed.