JP6742721B2 - Cooler unit - Google Patents

Description

The present disclosure relates to a unit-type cooler unit that can be made compact.

2. Description of the Related Art There are known unit type refrigerating devices and hot water supply devices that perform air conditioning and hot water supply in each room of a building (for example, Patent Document 1).
In the above equipment, a condenser is used as a part of equipment constituting a refrigeration cycle or a heat pump cycle. There are air-cooling type and water-cooling type condensers, but in the conventional air-cooling type condenser, it is general that the heat transfer section is arranged facing the air intake port. However, in the case of the unit type, since the area of the air intake is limited due to its shape, the amount of air taken in is limited, and therefore the cooling effect is limited. In order to improve the cooling effect, it is necessary to increase the size of the unit body to increase the area of the air intake port or increase the air volume of the blower, which leads to high cost.
Even in the water-cooled condenser, in order to improve the cooling effect, it is necessary to increase the heat transfer area with the cooling water, which leads to high cost.

Patent Document 2 discloses a heat exchange unit in which the outer shape of a unit body is V-shaped and a V-shaped heat exchanger is arranged facing the outer surface. This heat exchange unit increases the area of the heat transfer surface by arranging a plurality of heat exchange units side by side. By making the heat exchanger V-shaped, a plurality of heat exchange units can be arranged side by side. Even so, it is possible to form an air flow path reaching the heat transfer surface.

JP, 2005-161465, A JP, 2007-163017, A

Unit type refrigeration equipment, hot water supply equipment and the like are required to be compact in order to reduce restrictions on the location. As shown in Patent Document 2, the solution means for disposing a plurality of heat exchange units runs counter to this requirement.
On the other hand, in order to enhance the cooling effect of the condenser, as described above, the size and cost are inevitably increased.

At least one embodiment of the present invention, in view of the above problems, in a cooler unit applied to a unit type air conditioner, hot water supply device, refrigerating device, etc., the unit main body is made compact without reducing the cooling effect of the condenser. The purpose is to

(1) A cooler unit according to at least one embodiment of the present invention is
A unit main body having a storage space inside,
A heat exchange unit that is provided in the upper region of the storage space and that includes an evaporator and a condenser that form a part of a refrigeration cycle constituent device,
A machine unit portion that is provided in a lower region of the storage space and that includes a compressor that constitutes a part of the refrigeration cycle constituent device, an instrumentation unit, and a control panel for controlling the refrigeration cycle constituent device,
A first refrigerant pipe that is connected to the evaporator and the condenser, and is installed from the evaporator and the condenser toward the instrumentation unit;
Equipped with
The instrumentation section includes a pipe assembly made of a refrigerant pipe other than the first refrigerant pipe, and is arranged in proximity to one side surface of the unit body,
The first refrigerant pipe is guided to the instrumentation section while being close to the one side surface.

According to the configuration of (1), by disposing the heat exchange unit in the upper region of the storage space of the unit body and arranging the mechanical unit portion in the lower region of the storage space, it is possible to expand the storage space. It becomes possible to arrange each device. Therefore, a space for disposing the condenser can be taken, and thus the cooling effect of the condenser can be maintained.
In addition, the refrigerant pipes other than the first refrigerant pipe are collected in the instrumentation unit as a pipe assembly, and the first refrigerant pipe is installed close to one side surface of the unit main body and guided to the instrumentation unit. The refrigerant pipes can be compactly arranged in a part of the storage space. As a result, the unit body can be made compact.

(2) In some embodiments, in the configuration (1),
The compressor is arranged facing the back surface of the unit body in the storage space,
The control panel is arranged facing the front of the unit body in the storage space.
According to the configuration of (2) above, by disposing the compressor and the control panel facing the front or back of the unit main body, it is easy to access the compressor and the control panel from the outside, and maintenance and inspection of these are performed. Will be easier.
This eliminates the need to release both side surfaces of the unit body, so that maintenance and inspection of each device can be performed even if a plurality of cooler units are closely arranged with both side surfaces facing each other.

(3) In some embodiments, in the configuration (1) or (2),
The evaporator is disposed adjacent to the one side surface of the unit body,
The first refrigerant pipe includes a secondary refrigerant inflow pipe and a secondary refrigerant outflow pipe connected to the evaporator,
The secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe are led out to the outside from the back surface of the unit body of the evaporator.
According to the configuration of (3), the secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe can be arranged without interfering with the pipe assembly of the instrumentation section.
Further, the secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe are led out from the rear surface of the unit main body, so that when the plurality of cooler units are closely arranged with both side surfaces facing each other, the secondary refrigerant inflow pipe and the cooling water outflow pipe Since all the openings can be arranged on the back side, it becomes easy to connect the header pipes to these openings.

(4) In some embodiments, in any of the configurations (1) to (3),
A first secondary refrigerant circulation path connected to the secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe;
A liquid reservoir provided at a position lower than the evaporator in the first secondary refrigerant circulation path for storing a secondary refrigerant;
Equipped with
The secondary refrigerant is naturally circulated between the evaporator and the liquid reservoir by a thermosyphon action.
According to the configuration of (4), the head difference between the evaporator and the liquid reservoir is used to naturally circulate the secondary refrigerant between the evaporator and the liquid reservoir by the thermosiphon action. Pump power for circulating the secondary refrigerant is no longer necessary.

(5) In some embodiments, in the configuration (4),
A second secondary refrigerant circulation path connected between the liquid reservoir and the supply portion of the secondary refrigerant;
A secondary refrigerant pump provided at a lower position where the necessary suction head can be secured from the liquid reservoir in the second secondary refrigerant circulation path;
Equipped with.
According to the configuration of the above (5), in the second secondary refrigerant circulation path, the secondary refrigerant pump is arranged below the liquid reservoir by an amount that can secure the necessary suction head, so that the secondary refrigerant pump The required suction head can be secured, and the secondary refrigerant can be circulated smoothly.

(6) In some embodiments, in any of the configurations (1) to (5),
In the lower area of the storage space,
The compressor and the instrumentation section are arranged to face each other,
The pipe assembly of the instrumentation unit is configured to be attachable to and detachable from the refrigerant pipe on the compressor side.
According to the above configuration (6), the compressor can be easily separated from the instrumentation unit when the operation is stopped. This facilitates maintenance and inspection of the compressor.

(7) In some embodiments, in any of the configurations (1) to (6),
The control panel has a casing having a communication port that incorporates a control device and communicates with the outside,
The casing has a blower for introducing outside air into the casing from the communication port and discharging the outside air to the outside of the casing.
According to the above configuration (7), it is possible to form an air flow that causes the outside air to flow inside the casing. Therefore, it is possible to suppress heat removal in the casing and the invasion of the refrigerant when the refrigerant leaks.

(8) In some embodiments, in any of the configurations (1) to (7),
Ventilation openings are provided on the front surface and the back surface of the unit body,
The condenser is
An inverted triangular side panel that is provided inside the unit main body and has a width that decreases downwardly; a partition plate provided along the first side of the inverted triangular shape of the side panel; and the partition plate. a plurality of heat exchange panel air inlet surface forming the inner space of the arranged plate-shaped Therefore inverted triangular cross-section to the heat exchanger obliquely downwards together provided along the inverted triangle second side of so as to face Consists of
The plurality of heat exchange panels are arranged in parallel inside the unit main body, and are arranged in a direction in which the heat exchanger crosses a ventilation port surface of the unit main body that allows the inflow of air,
A blower is provided on the upper part of the unit body to form an air flow path that flows into the inner space from the front surface of the heat exchanger and flows out from the upper opening of the heat exchange panel.

In the configuration of (8) above, the condenser constitutes an air-cooled condenser. Since the plate-shaped heat exchangers constituting the heat exchange panel are arranged in parallel inside the unit body and in a direction intersecting the ventilation port surface through which air can flow in, the outer surface of the unit body is The heat exchange surface can be secured without being restricted by the size.
Also, by forming the heat exchange panel with an inverted triangular cross section, an air inlet surface can be formed on the front surface of the heat exchanger (the surface on the side where air flows in ), so the air flow rate through the heat exchanger can be secured and A heat effect can be obtained.
Further, since the heat exchanger is arranged in the unit body in a direction intersecting with the side surface through which air can flow, obstacles such as flying flying stones may hit the heat exchanger as compared with the conventional one. Significantly reduced compared to. Therefore, it is possible to suppress the occurrence of scratches due to flying stones and the like, and to suppress the progress of corrosion due to the occurrence of scratches.

(9) In some embodiments, in any one of the configurations (1) to (7),
The condenser is
A cooling water inflow pipe and a cooling water outflow pipe are connected to each other, and the cooling water inflow pipe and the cooling water outflow pipe are connected to each other.
In the configuration of the above (9), the condenser constitutes a water-cooled condenser and the plate heat exchanger is used for heat exchange between the refrigerant and the cooling water, so that the cooling effect can be enhanced and the arrangement space can be reduced. As a result, the upper area of the storage space can be opened, and the control panel can be extended to the upper area.

According to at least one embodiment of the present invention, in a unit-type cooler unit, the unit main body can be made compact while maintaining the cooling effect of the condenser.

It is a front view schematic block diagram of the cooler unit which concerns on one Embodiment. It is a plane view schematic structure figure of the lower field of a cooler unit concerning one embodiment. It is a side view schematic block diagram of the cooler unit which concerns on one Embodiment. It is a block diagram of a cooler unit concerning one embodiment. It is a layout of a plurality of cooler units concerning one embodiment. It is a perspective view of the air-cooling type cooler unit which concerns on one Embodiment. It is a perspective view of the air-cooling type cooler unit which concerns on one Embodiment. It is a perspective view of the air-cooling type condenser which concerns on one Embodiment. It is a perspective view of the water-cooling type cooler unit which concerns on one Embodiment.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, but are merely illustrative examples.
For example, the expressions representing relative or absolute arrangements such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric", or "coaxial" are strict. In addition to representing such an arrangement, it also represents a state of relative displacement, or a state of relative displacement with an angle or a distance at which the same function can be obtained.
For example, expressions such as “identical”, “equal”, and “homogeneous” that indicate that they are in the same state are not limited to the strict equality, but also include a tolerance or a difference that provides the same function. It also indicates the existing state.
For example, the representation of a shape such as a quadrangle or a cylinder does not only represent a shape such as a quadrangle or a cylinder in a geometrically strict sense, but also an uneven portion or a chamfer within a range in which the same effect can be obtained. The shape including parts and the like is also shown.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one element are not exclusive expressions excluding the existence of other elements.

As shown in FIGS. 1 to 3, a cooler unit 10 according to some embodiments of the present invention includes a unit body 12 having a storage space s inside.
The heat exchange unit portion 14 is provided in the upper region Ru of the storage space s, and the mechanical unit portion 16 is provided in the lower region Rl of the storage space s.
The heat exchange unit section 14 includes an evaporator 18 and a condenser 20 which form part of the refrigeration cycle constituent equipment, and the mechanical unit section 16 includes an instrumentation section 22 and a compressor which form part of the refrigeration cycle constituent equipment. 24, and a control panel 26 (26a, 26b) for controlling the operation of the refrigeration cycle components.
Further, the first refrigerant pipe 28 is connected to the evaporator 18 and the condenser 20, and is arranged in proximity to the one side surface 12c of the unit main body 12 and is guided toward the instrumentation section 22.
Note that FIG. 2 shows a plane of the lower region Rl.

Thus, by disposing the heat exchange unit portion 14 in the upper region Ru of the storage space s and arranging the mechanical unit portion 16 in the lower region Rl of the storage space s, the condenser 20 can be expanded without expanding the storage space s. Can take up space for placement. Thereby, the cooling effect of the condenser 20 can be maintained.
Further, the refrigerant pipes are collected as an assembly in the instrumentation unit 22, and the first refrigerant pipe 28 is extended toward the instrumentation unit 22, so that the refrigerant pipes are compactly arranged in a part of the storage space s. it can. As a result, the unit body 12 can be made compact.

In the illustrated embodiment, the control panel 26 (26a) is a control panel of a cooler unit including an air-cooled condenser, and the control panel 26 (26b) is a control panel 26 of a cooler unit including a water-cooled condenser. Since the water-cooled condenser can reduce the volume as compared with the air-cooled condenser, a space can be provided in the upper region Ru, and the control panel 26 (26b) can be extended to the upper region Ru.

In the exemplary embodiment, as shown in FIGS. 2 and 3, in the storage space s, the compressor 24 is arranged to face the back surface 12b of the unit body 12, and the control panel 26 faces the front surface 12a of the unit body 12. Will be placed.
As a result, by removing the panels forming the front surface 12a and the rear surface 12b of the unit main body 12, it becomes easy to access the compressor 24 and the control panel 26 from the outside, and maintenance and inspection of the compressor 24 and the control panel 26 are easy. become.
Therefore, maintenance and inspection of the devices stored in the storage space s can be performed without releasing both side surfaces of the unit main body 12. Therefore, as shown in FIG. 5, even if a plurality of cooler units 10a, 10b and 10c are closely arranged with both side surfaces facing each other, they can be operated without any trouble and maintenance is easy.

In the exemplary embodiment, as shown in FIGS. 1 and 2, the evaporator 18 is disposed adjacent to one side surface 12 c of the unit body 12.
Further, as shown in FIGS. 6, 7 and 9, the first refrigerant pipe 28 includes a secondary refrigerant inflow pipe 30 and a secondary refrigerant outflow pipe 32 connected to the evaporator 18. In the illustrated embodiment, the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 are connected to the surface 19 of the evaporator 18 that faces the rear surface 12b of the unit body 12, and the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 are external Be derived to.
Thereby, the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 can be arranged without interfering with other refrigerant pipes.
Further, by pulling out the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 from the rear surface 12b of the unit main body 12, as shown in FIG. 5, the plurality of cooler units 10a, 10b, 10c,. When they are closely arranged with each other as the facing surface, the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 can all be arranged on the back surface 12b side. Therefore, the arrangement of the header pipes 34 and 36 connected to the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 of each cooler unit becomes easy.
In the illustrated embodiment, the secondary refrigerant r2 supplied from the header pipe 34 to the evaporator 18 is CO ₂ .

In the exemplary embodiment, as shown in FIG. 4, a first secondary refrigerant circulation passage 40 connected to the secondary refrigerant inflow pipe 30 and the secondary refrigerant outflow pipe 32 is provided. A liquid reservoir 42 for storing the secondary refrigerant r2 is provided below the evaporator 18 in the first secondary refrigerant circulation path 40.
In the above structure, the secondary refrigerant gas in the liquid reservoir 42 rises due to its buoyancy, and flows into the evaporator 18 located higher than the liquid reservoir 42 via the secondary refrigerant inflow pipe 30. The secondary refrigerant r2 that has been liquefied or has become a gas-liquid two-layer flow by being cooled in the evaporator 18 descends through the secondary refrigerant outflow pipe 32 through the secondary refrigerant outflow pipe 32 due to its gravity and accumulates in the liquid pool. Return to vessel 42.
In this way, due to the height difference between the evaporator 18 and the liquid reservoir 42, the secondary refrigerant r2 naturally circulates in the first secondary refrigerant circulation passage 40 by the thermosiphon action.
This eliminates the need for pump power for circulating the secondary refrigerant r2.

In the exemplary embodiment, as shown in FIG. 4, a second secondary refrigerant circulation path 44 is provided between the liquid reservoir 42 and the supply section (demandee) 46 of the secondary refrigerant r2. In the second secondary refrigerant circulation path 44, a secondary refrigerant pump 48 is provided at a lower position where the necessary suction head H can be secured from the liquid reservoir 42.
According to the above configuration, since the necessary suction head H of the secondary refrigerant pump 48 can be secured by the above arrangement, the secondary refrigerant r2 can be smoothly circulated in the second secondary refrigerant circulation path 44.

In the embodiment shown in FIG. 4, a primary refrigerant circulation path 50 is provided inside the cooler unit 10, and a refrigeration cycle such as the compressor 24, the condenser 20, the expansion valve 52, and the evaporator 18 is provided in the primary refrigerant circulation path 50. Components are provided. For example, NH ₃ is used as the primary refrigerant.

In the exemplary embodiment, compressor 24 and instrumentation 22 are face-to-face with each other, as shown in FIGS. Further, the pipe assembly 54 of the instrumentation section 22 is configured to be attachable to and detachable from the refrigerant pipe 56 on the compressor 24 side.
This allows the compressor 24 to be easily separated from the instrumentation section 22 when the cooler unit 10 is stopped. Therefore, maintenance and inspection of the compressor 24 becomes easy.
In the illustrated embodiment, the refrigerant pipe assembly 54 of the instrumentation unit 22 and the refrigerant pipe 56 of the compressor 24 are detachably connected to each other at a connection unit 58.
In the illustrated configuration, the compressor 24 can be easily separated from the instrumentation unit 22 by disconnecting the connection unit 58.

In the exemplary embodiment, as shown in FIG. 6, the control panel 26 (26 a) includes a control device and includes a casing 60 having a communication port 62 that communicates with the outside. The casing 60 includes a blower 64. When the blower 64 is operated, the outside air is introduced into the casing 60 from the ventilation port 62 and discharged to the outside of the casing 58.
This makes it possible to form an air flow that allows the outside air to flow inside the casing 60. Therefore, it is possible to suppress heat removal from the inside of the casing 60 and to prevent the refrigerant from entering the casing 60 when the refrigerant leaks.

In the exemplary embodiment, as shown in FIGS. 6 to 8, the air-cooled cooler unit 10A is provided with ventilation holes 70 on the front surface (ventilation surface) 12a and the back surface (ventilation surface) 12b of the unit body 12.
As shown in FIG. 8, the condenser is composed of a plurality of heat exchange panels 72 provided inside the unit main body 12. Each heat exchange panel 72 includes a partition plate 74 forming a vertical surface, a plate-shaped heat exchanger 76 having a front surface (air inflow surface) arranged obliquely downward, and a pair of side surface panels 78 to form an inner space Si having an inverted triangular cross section. To form.
As shown in FIGS. 6 and 7, a hood 80 having an opening is provided on the upper surface (ventilation surface) 12d of the unit main body 12, and a blower 82 is provided on the hood 80.
The plurality of heat exchange panels 72 are arranged in parallel inside the unit body 12, and are arranged in a direction in which the heat exchanger 76 intersects the front surface 12a and the rear surface 12b into which air can flow.

The plurality of heat exchange panels 72 form an air-cooled condenser. By the operation of the blower 82, an air flow a is formed which flows in from the ventilation port 70, traverses the heat exchanger 76, passes through the upper opening of the heat exchange panel 72, and flows out of the hood 80.
The plate-shaped heat exchangers 76 forming the heat exchange panel 72 are arranged inside the unit main body 12 in parallel and in a direction intersecting the front surface 12a and the rear surface 12b into which air can flow. As a result, the heat exchange surface can be secured without being restricted by the size of the outer surface of the unit body 12.
Further, since the heat exchange panel 72 has an inverted triangular cross section, the air inflow space Sf can be formed in the front surface (the surface on the side where air flows in) of the heat exchanger 76, so that the air flow rate through the heat exchanger 76 can be reduced. It is possible to secure the heat transfer effect.
Further, since the heat exchanger 76 is arranged inside the unit main body 12 in a direction intersecting with the front surface 12a and the back surface 12b through which air can flow, obstacles such as flying flying stones hit the heat exchanger 76. The possibility is greatly reduced compared to the conventional. Therefore, it is possible to suppress the occurrence of scratches due to flying stones and the like, and to suppress the progress of corrosion due to the occurrence of scratches.

In the illustrated embodiment, as shown in FIGS. 6 and 7, the unit main body 12 has a rectangular parallelepiped shape.
Further, in the lower area of the front surface 12a, an opening is formed in a part of the panel that shields the lower area of the front surface 12a, and the display portion 84 of the control panel 26 (26a) is arranged in this opening so as to be visible from the outside. There is.
Further, a grid 86 for preventing entry of obstacles such as birds is provided at the openings of the ventilation holes 70 and the hood 80 formed in the upper regions of the front surface 12a and the back surface 12b.
The instrumentation unit 22 also includes a receiver tank 87 that primarily stores the refrigerant sent from the plurality of heat exchange panels 72 that configure the condenser, pipes, and sensors (not shown).
Further, as shown in FIG. 7, part of the ventilation hole 70 is covered with the punching metal 88 on the back surface 12b. As a result, it is possible to maintain the heat transfer effect by blocking the entry of obstacles such as flying flying stones and dust accompanying the air flow a and allowing the air flow a to flow into the unit main body. ing.

Further, in the illustrated embodiment, as shown in FIG. 8, the lower end of each heat exchanger 76 is mounted on the channel material 90 having a groove shape with the opening facing upward, and both ends of the channel material 90 are supported by a pair of support members. It is coupled to frames 92 and 94.
Thereby, the plurality of heat exchange panels 72 are arranged in parallel so that the respective side panels 78 form a continuous surface. The compact support structure does not hinder the formation of the airflow a.
The plate-shaped heat exchanger 76 is, for example, flat heat exchange tubes (so-called “microchannels”) arranged in parallel, and corrugates interposed between these flat heat exchange tubes. Composed of fins. With the heat exchanger having such a configuration, the heat exchange efficiency can be significantly improved.

An inlet header pipe 96 is provided at the upper end of each heat exchanger 76 along the longitudinal direction of each heat exchanger 76, and an outlet header pipe 96 is provided at the lower end of each heat exchanger 76 along the longitudinal direction of each heat exchanger 76. A pipe 98 is provided. The inlet header pipe 96 of each heat exchanger 76 is connected to the inlet header 100, and the outlet header pipe 98 of each heat exchanger 76 is connected to the outlet header 102.
The refrigerant r flows from the inlet header 100 into the inlet header pipe 96 of each heat exchanger 76, is further cooled to the air flow a in each heat exchanger 76, and then passes through the outlet header pipe 98 of each heat exchanger 76. It flows to the outlet header 102.
The inlet header 100 and the outlet header 102 are arranged as the first refrigerant pipe 28 so as to be close to the one side surface 12c of the unit main body 12, and are guided toward the instrumentation section 22.
The upper portion of the inlet header pipe 96 of each heat exchanger 76 is covered with the flange portion 74a integral with the partition plate 74, and the outlet header pipe 98 is arranged in the groove of the channel material 90, so that these header pipes are stable. Supported and protected.

In the exemplary embodiment, as shown in FIG. 9, the condenser of the water-cooled cooler unit 10</b>B includes a plate heat exchanger 104.
By using the plate heat exchanger 104 as the condenser, the arrangement space can be reduced as compared with the plurality of heat exchange panels 72 used as the condenser in the air-cooling cooler unit 10A. Therefore, since the upper region Ru of the storage space s can be opened, the control panel 26 (26b) can be extended to the upper region Ru.
Further, the first refrigerant pipe 28 is arranged so as to be close to the one side surface 12 c of the unit main body 12, and is guided toward the instrumentation section 22.

In the illustrated embodiment, the evaporator 18 is located adjacent the side panel in the upper region Ru, the compressor 24 is located in the lower region Rl, and the instrumentation 22 is located in the lower region Rl below the evaporator 18. To be done.
A cooling water inflow pipe 106 and a cooling water outflow pipe 108 are connected to the condenser 20, and a secondary refrigerant inflow pipe 30 and a secondary refrigerant outflow pipe 32 are connected to the evaporator 18.
As shown in FIG. 9, these pipes are configured to be led out from the upper region Ru of the back surface 12b.
Thus, as shown in FIG. 5, when a plurality of cooler units 10a, 10b, 10c... Are closely arranged with both side surfaces facing each other, the cooling effect water inflow pipe 106 and the cooling water outflow pipe 108 are all located on the rear surface 12b side. Can be placed in Therefore, the header pipes 110 and 112 connected to the cooling water inflow pipe 106 and the cooling water outflow pipe 108 of each cooler unit are easily arranged.

In the illustrated embodiment, as shown in FIG. 9, a refrigerant leakage sensor 116, a water sprinkling pipe 118, a water sprinkling nozzle 120 and an electric valve 122 provided at the tip of the water sprinkling pipe 118 are provided.
When NH ₃ or the like that requires detoxification equipment is used as the primary refrigerant, when the refrigerant leakage sensor 116 detects NH ₃ leakage, the motor-operated valve 122 is actuated to spray water from the water spray nozzle 120 to remove NH 3.
The detoxified water is discharged from the drain pipe 124 led out from the lower part of the back surface 12b. Rainwater and condensed water that have entered the unit body 12 are also discharged from the drain pipe 124.
As shown in FIG. 5, when a plurality of cooler units 10a, 10b, 10c,... Are closely arranged with both side surfaces facing each other, the drain pipes 124 of each cooler unit can all be arranged on the rear surface 12b side. Therefore, the header pipe 126 connected to the drain pipe 124 of each cooler unit can be easily arranged.
Further, as shown in FIG. 5, by disposing all the header pipes 34, 36, 110, 112 and 126 on the rear surface 12b side, it is possible to eliminate the arrangement of the piping on the front surface 12a side.

According to at least one embodiment of the present invention, in a cooler unit applied to a unit type air conditioner, hot water supply device, refrigerating device, etc., it is possible to make the unit main body compact while maintaining the cooling effect of the condenser. it can.

10, 10a, 10b, 10c Cooler unit 10A Air-cooled cooler unit 10B Water-cooled cooler unit 12 Unit body 12a Front (ventilation surface)
12b Rear surface (ventilation surface)
12c Side surface 12d Upper surface (ventilation surface)
14 heat exchange unit part 16 mechanical unit part 18 evaporator 20 condenser 22 instrumentation part 24 compressor 26 (26a, 26b) control panel 28 first refrigerant pipe 30 secondary refrigerant inflow pipe 32 secondary refrigerant outflow pipe 34, 36, 110, 112, 126 Header pipe 40 First secondary refrigerant circulation path 42 Liquid reservoir 44 Second secondary refrigerant circulation path 46 Supply destination 48 Secondary refrigerant pump 50 Primary refrigerant circulation path 52 Expansion valve 54 Piping assembly Body 56 Refrigerant pipe 58 Connection part 60 Casing 62 Communication port 64, 82 Blower 70 Ventilation port 72 Heat exchange panel 74 Partition plate 76 Heat exchanger 78 Side panel 80 Hood 84 Display part 86 Lattice 88 Punching metal 90 Channel material 92, 94 Support Frame 96 Inlet header pipe 98 Outlet header pipe 100 Inlet header 102 Outlet header 104 Plate heat exchanger 106 Cooling water inflow pipe 108 Cooling water outflow pipe 116 Refrigerant leak sensor 118 Water sprinkling pipe 120 Water sprinkling nozzle 122 Electric valve 124 Drain pipe H Necessary suction head Sf Air inflow space Si Inner space Ru Upper area Rl Lower area a Air flow r Refrigerant r1 Primary refrigerant r2 Secondary refrigerant s Storage space

Claims (8)

A unit main body having a storage space inside,
A heat exchange unit that is provided in the upper region of the storage space and that includes an evaporator and a condenser that form a part of a refrigeration cycle constituent device,
A machine unit portion that is provided in a lower region of the storage space and that includes a compressor that constitutes a part of the refrigeration cycle constituent device, an instrumentation unit, and a control panel for controlling the refrigeration cycle constituent device,
A first refrigerant pipe that is connected to the evaporator and the condenser, and is installed from the evaporator and the condenser toward the instrumentation unit;
Equipped with
The instrumentation section includes a pipe assembly made of a refrigerant pipe other than the first refrigerant pipe, and is arranged in proximity to one side surface of the unit body,
In the lower region of the storage space, the compressor is arranged so as to face the instrumentation section on the side opposite to the one side surface with the instrumentation section interposed therebetween,
The first refrigerant pipe is guided to the instrumentation section while being close to the one side surface,
The cooler unit is characterized in that the pipe assembly of the instrumentation unit extends in a direction away from the one side surface toward the compressor, and is detachably attached to a refrigerant pipe on the compressor side. .. The compressor is arranged facing the back surface of the unit body in the storage space,
The cooler unit according to claim 1, wherein the control panel is arranged facing the front of the unit body in the storage space. The evaporator is disposed adjacent to the one side surface of the unit body,
The first refrigerant pipe includes a secondary refrigerant inflow pipe and a secondary refrigerant outflow pipe connected to the evaporator,
The cooler unit according to claim 1 or 2, wherein the secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe are led out to the outside from the rear surface of the unit body. A unit main body having a storage space inside,
A heat exchange unit that is provided in the upper region of the storage space and that includes an evaporator and a condenser that form a part of a refrigeration cycle constituent device,
A machine unit portion that is provided in a lower region of the storage space and that includes a compressor that constitutes a part of the refrigeration cycle constituent device, an instrumentation unit, and a control panel for controlling the refrigeration cycle constituent device,
A first refrigerant pipe that is connected to the evaporator and the condenser, and is installed from the evaporator and the condenser toward the instrumentation unit;
Equipped with
The instrumentation section includes a pipe assembly made of a refrigerant pipe other than the first refrigerant pipe, and is arranged in proximity to one side surface of the unit body,
The first refrigerant pipe is guided to the instrumentation unit while being close to the one side surface,
The evaporator is disposed adjacent to the one side surface of the unit body,
The first refrigerant pipe includes a secondary refrigerant inflow pipe and a secondary refrigerant outflow pipe connected to the evaporator,
The secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe are led out to the outside from the rear surface of the unit body,
A first secondary refrigerant circulation path connected to the secondary refrigerant inflow pipe and the secondary refrigerant outflow pipe;
A liquid reservoir provided at a position lower than the evaporator in the first secondary refrigerant circulation path for storing a secondary refrigerant;
Equipped with
A cooler unit characterized in that the secondary refrigerant is naturally circulated by a thermosyphon action between the evaporator and the liquid reservoir. A second secondary refrigerant circulation path connected between the liquid reservoir and the supply portion of the secondary refrigerant;
A secondary refrigerant pump provided at a lower position where the necessary suction head can be secured from the liquid reservoir in the second secondary refrigerant circulation path;
The cooler unit according to claim 4, further comprising: The control panel has a casing having a communication port that incorporates a control device and communicates with the outside,
The cooler unit according to any one of claims 1 to 5, wherein the casing includes a blower for introducing outside air into the casing from the communication port and discharging the outside air to the outside of the casing. A unit main body having a storage space inside,
A heat exchange unit that is provided in the upper region of the storage space and that includes an evaporator and a condenser that form a part of a refrigeration cycle constituent device,
A machine unit portion that is provided in a lower region of the storage space and that includes a compressor that constitutes a part of the refrigeration cycle constituent device, an instrumentation unit, and a control panel for controlling the refrigeration cycle constituent device,
A first refrigerant pipe that is connected to the evaporator and the condenser, and is installed from the evaporator and the condenser toward the instrumentation unit;
Equipped with
The instrumentation section includes a pipe assembly made of a refrigerant pipe other than the first refrigerant pipe, and is arranged in proximity to one side surface of the unit body,
The first refrigerant pipe is guided to the instrumentation unit while being close to the one side surface,
Ventilation openings are provided on the front and back of the unit body,
The condenser is
An inverted triangular side panel that is provided inside the unit main body and has a width that decreases downwardly; a partition plate provided along the first side of the inverted triangular shape of the side panel; and the partition plate. A plurality of heat exchange panels that form an inner space of an inverted triangular cross section by plate-shaped heat exchangers that are provided along the second sides of the inverted triangular shape so as to face each other and that have an air inflow surface arranged obliquely downward. Composed,
The plurality of heat exchange panels are arranged in parallel inside the unit main body, and are arranged in a direction in which the heat exchanger crosses a ventilation port surface of the unit main body that allows the inflow of air.
A cooler, which is provided at the upper part of the unit body, and includes a blower for forming an air flow path that flows into the inner space from the front surface of the heat exchanger and flows out from the upper opening of the heat exchange panel. unit. The condenser is
Cooling water inlet pipe and cooling water outflow pipe is connected, according to claim 1 to 6, characterized in that it is constituted by a plate heat exchanger for cooling the primary refrigerant circulating the refrigeration cycle constituting equipment cooling water The cooler unit according to any one of items.

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