JP2967522B2 - Heat exchange equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial application field The present invention accommodates a heat exchanger, a blower, a compressor, etc., and compresses a refrigerant gas flowing from a use side unit (cooling unit) outside the machine. The present invention relates to a heat exchange device (condensing unit) that continuously performs a cooling operation by sending it to a use side unit after cooling.

(B) Prior art Conventionally, the applicant has proposed Japanese Patent Application No. 1-250262 as an example of a structure of this type of heat exchange device.

According to this proposal, the heat exchange device is composed of a mechanical unit containing a compressor and a heat exchange unit containing a heat exchanger and a blower, so that the heat exchange unit can be mounted on this mechanical unit. The refrigerant pipes extending from both units are connected by the absorption space of the heat exchange unit.

(C) Problems to be Solved by the Invention Here, in addition to the refrigerant pipes connected to the heat exchange unit described above, a refrigerant pipe connected to a use side unit (cooling unit) not shown also extends from this mechanical unit. This mechanical unit had a number of open pipe outlets. For this reason, the driver of the compressor of the mechanical unit may leak from these pipe outlets and increase noise.

SUMMARY OF THE INVENTION It is an object of the present invention to reduce operating noise of a compressor of a mechanical unit provided with a large number of pipe outlets from the unit so as to reduce noise.

(D) Means for Solving the Problems In order to achieve this object, the present invention provides a refrigerant compressor,
It has a heat exchanger that condenses the refrigerant gas compressed by the refrigerant compressor, a blower that cools the heat exchanger with outside air, etc., and compresses and cools the refrigerant gas that has flowed in from a utilization side unit outside the device. After that, in the heat exchange device in which the cooling operation is continuously performed by sending the heat exchange device to the use side unit again, the heat exchange device is constituted by a machine unit and a heat exchange unit that can be separated from each other, and the machine unit is The machine body structure with the panel attached to the frame, the top panel is made detachable, and a sound absorbing material is provided on the inner wall of this machine unit and connected to the compressor room containing the refrigerant compressor and the compressor. A partition plate is provided for partitioning the refrigerant pipe into a piping chamber for accommodating a refrigerant pipe such as a refrigerant pipe connected to the heat exchange unit, and a plurality of outlets for the refrigerant pipe are provided on an exterior panel of the piping chamber. Only, and the heat exchange unit is for this above the heat exchanger accommodated in the heat exchange unit includes a blower to form a service space beneath the heat exchanger.

(E) Action The compressor room partitioned by the partition plate in the mechanical unit has a sound absorbing material provided on the inner wall to house the compressor, and all of the refrigerant pipes connected to the compressor once have a piping chamber. Since it is connected to the use side unit outside the mechanical unit, the operating noise of the compressor is absorbed by the sound absorbing material in the compressor room,
Noise that leaks from the compressor through the refrigerant pipe is also attenuated in the piping chamber of the mechanical unit and then connected to the use side unit, so that noise is extremely unlikely to leak from the mechanical unit.

(F) Embodiment In FIGS. 1 to 3, reference numeral 1 denotes an outdoor installation type condensing unit (heat exchange device) connected to a use side unit (not shown) such as a showcase by a refrigerant pipe, and a mechanical unit. (Housing) 2 and a heat exchange unit 3 mounted on the mechanical unit. Here, the depth dimension and the width dimension of both units 2 and 3 are set to be the same.

In the heat exchange unit 3, reference numerals 4 and 5 denote left and right plates of the unit, and reference numeral 6 denotes a first electrical box attached to the left plate 4, which houses a control device for controlling the rotation speed of the blower, which will be described later. Reference numerals 7 and 8 denote a front plate and a rear plate, the left and right ends of which are fixed to the left and right plates 4 and 5, respectively.

Reference numeral 9 denotes a blower, which comprises a fan 10 and a fan motor 11 for driving the fan. 12 is a mounting plate to which this motor is fixed, 13 is a support rod to which this mounting plate is fixed, and this support rod 13 is a bent piece 14 of the front plate 7 and the rear plate 8.
Fixed to 15 is an upper board, front board 7, rear board 8, left board 4,
It is fixed to the upper edge of the right plate 5. Reference numeral 16 denotes a blowout guard attached to the upper plate 15.

Reference numeral 17 denotes a plate-fin type heat exchanger acting as a condenser, which is arranged in a substantially V shape. And these heat exchangers
17 has its lower side 18 located above the left and right plates 4,5, and the ends of these heat exchangers 17 are fixed to the inner surfaces of the left and right plates 4,5. Reference numeral 19 denotes a suction guard whose left and right protrusions 20 are fixed to the edges of the left and right plates 4,5. The heat exchanger 17 is arranged in this manner, and a space is formed on the left, right, lower part, and lower part of the heat exchanger 17, and this space is used as a service space 21 such as a suction space and a piping space. (See Fig. 2) 22
Is a refrigerant pipe extending from the heat exchanger 17 arranged in a V shape,
It extends in the direction of the right plate 5 and is then guided downward.

In the mechanical unit 2, reference numeral 23 denotes a bottom plate, reference numeral 24 denotes a left frame, and reference numeral 25 denotes a left mounting piece fixed to the upper piece 26 of the left frame, which is located inside the upper side 26. 27 is the right frame,
Reference numeral 28 denotes a right mounting piece fixed to the upper piece 29 of the right frame 27, and is located inside the upper side 29. 30 is the front frame,
Reference numeral 32 denotes a rear frame, and the frames 24, 27, 30, 31 and the bottom plate 2 form a frame of the machine unit 2. 32 is a left (exterior) panel attached to the left frame 24, 33 is a right (exterior) panel attached to the right frame 27, 34 is a rear (exterior) panel attached across the rear frame 31 and the bottom plate 23, Reference numeral 35 denotes a front panel that is attached across the front frame 30 and the bottom plate 23, and 36 denotes a top panel that is attached to each frame 24, 27, 30, 31, and these panels 32, 33, 3
The machine unit 2 is formed in a box shape by 4,35,36. Three
Reference numeral 7 denotes a partition plate erected on the bottom plate 23. The interior of the machine unit 2 is divided into two chambers, a machine room 40 and a piping room 44, by the partition plate 37. Reference numeral 38 denotes a notch formed in the right rear portion of the top panel 36. A refrigerant pipe extending from a receiver tank (described later) in the mechanical unit 2 is led out to the notch 38, and the refrigerant pipe is connected to the heat exchange unit 3 Is connected to the refrigerant pipe 22 of the heat exchanger 17. 39 is a guide piece formed on the left edge of the top panel 36. Then, attach this ceiling panel 36 to the left frame
By sliding to the side 24, the left mounting piece 25 fixed to the left frame 24 is sandwiched between the guide piece 39 and the top panel 36, and the left side of the top panel 36 is fixed. The right end of the top panel 36 is a right mounting piece fixed to the right frame 27.
Screwed to 28.

The left chamber (compressor chamber) 40 partitioned by the partition plate 37
Includes a scroll compressor 41, an accumulator 42 located behind the compressor 41, and an accumulator 42.
And an oil separator 43 located on the side of the oil separator 43. In the right side chamber (piping chamber) 44 in FIG.
45 and a receiver tank 46 located behind the electrical box 45
And are arranged. The arrangement of these devices is as shown in FIG. In FIG. 4, reference numeral 47 denotes a sound absorbing material, which is affixed to each of the panels 32, 34, and 35 serving as the inner wall of the compressor chamber 40 and the partition plate 37.

Refrigerant pipes (not shown) from the scroll compressor 41, the accumulator 42, and the like in the compressor chamber 40 are provided at lower openings of the partition plate.
48 (see FIG. 1) leads to the piping chamber 44.

The refrigerant pipe 48 guided to the piping chamber 44 extends laterally along the lower side of the electrical box 45 as shown in FIG. 3, and is then bent downward.

A refrigerant pipe from a use side unit such as a showcase (not shown) is connected to the refrigerant pipe 48. At this time, the bottom plate 23
The knockout holes 50 and 51 provided in the opening 49, the right panel 33 and the rear panel 34 are punched out as necessary.
The refrigerant pipe is guided to the outside of the mechanical unit 2 from 0,51.
That is, when the showcase is disposed behind the mechanical unit 2 and the refrigerant pipe is guided to the rear, the knockout hole 51 of the rear panel 34 is punched. Also, mechanical unit 2
Is located to the right of the knockout hole 50 in the right panel 33 when the refrigerant pipe is guided to this right.
Punch out. When the refrigerant pipe is guided below the mechanical unit 2, the refrigerant pipe is taken out from the opening 49 of the bottom plate without punching out the knockout holes 50 and 51 of any of the panels 33 and 34.

Thus, the mechanical unit 2 is provided with the partition plate 37,
The compressor chamber 40 is substantially sealed, and a sound absorbing material 47 is attached to each of the panels 32, 34, 35 and the partition plate 37 serving as the inner walls of the compressor chamber, and the compressor 40 is accommodated in the compressor 40. Let me.

On the other hand, in the piping chamber 44, since the outlets (knockout holes 50, 51 and the opening 49) of the refrigerant pipes guided from the mechanical unit 2 to the outside are arranged together, the scroll compressor 41
Is prevented from leaking from the mechanical unit 2 as much as possible.

Fig. 5 is a rear sectional view of the mechanical unit, and 52 is the top panel.
In a gap formed between the rear panel and the rear panel, heated air in the machine chamber 40 and the piping chamber 44 is discharged to the outside from the gap 52 (see the solid arrow). Reference numeral 53 denotes a folded piece of the top panel 36, and a gap is formed by the folded piece 53.
52 prevents rainwater from directly penetrating.

Next, as a method of installing the mechanical unit 2 and the heat exchange unit 3, if there is no or small installation space, the heat exchange unit 3 is mounted on the mechanical unit 2.
If there is an installation space or if this space is large, the mechanical unit 2 and the heat exchange unit 3 are arranged side by side or separately. Further, if the suction and discharge space of the heat exchange unit 3 cannot be secured, the mechanical unit 2
May be stacked, and only the heat exchange unit 3 may be installed in a place where a suction and discharge space can be secured. These installation situations will be described sequentially.

In the first case, that is, when the heat exchange unit 3 is placed on the mechanical unit 2, the left and right plates 4, 5 of the heat exchange unit 3 are positioned so as not to overlap the top panel 36 of the mechanical unit 3. Fixed to frames 24 and 27. Therefore, when performing a service check of the scroll compressor 41 or the like built in the mechanical unit 2 in this state, the front panel 35 is removed and the suction guard of the heat exchange unit 2 is removed.
19 is also removed to open the service space 21 between the top panel 36 and the lower end 18 of the heat exchanger 17 (see FIG. 3). Then, insert a screwdriver (not shown) into this space 21, remove the screw fixed to the right side of the top panel 36,
The top panel 36 is slightly slid rightward (see the solid arrow in FIG. 1). By this sliding, the guide piece 39 is disengaged from the left mounting piece 25 of the mechanical unit 2, and the upper part of the mechanical unit 2 is opened.

As described above, in the mechanical unit 2 on which the heat exchange unit 3 is mounted, the top panel of the mechanical unit 2
Since the front panel 35 and the front panel 35 are separated from each other, work can be performed by observing the inside of the mechanical unit 2 from obliquely above.

Next, the case (2), that is, the case where the mechanical unit 2 and the heat exchange unit 3 are arranged side by side or both units are individually installed will be described. In that case, this mechanical unit 2
For example, the refrigerant pipe is guided to the outside of the mechanical unit 2 using the knockout hole 50 of the right panel 33, and the notch 38 of the top panel 36 of the mechanical unit 2 is substantially L-shaped as shown in FIG. It is closed by a closing member 54 having a shape. In this case, the arrangement of the refrigerant pipes around the receiver tank 46 in the mechanical unit 2 is changed from the situation shown in FIG. 7 to the situation shown in FIG. The arrows in FIGS. 7 and 8 indicate the flow direction of the refrigerant.

That is, in FIG. 7, 55 is the mechanical unit 2
A first refrigerant pipe connected to a discharge pipe of a scroll compressor (see FIG. 3) 41 therein, a substantially U-shaped second refrigerant pipe 56 connected to the first refrigerant pipe 55, and a second refrigerant pipe 57 A third refrigerant pipe connected to the pipe 56, a substantially L-shaped fourth refrigerant pipe 58 connected to the third refrigerant pipe 57, and a substantially L-shaped fifth refrigerant 59 connected to the fourth refrigerant pipe 58 Tube. A sixth refrigerant pipe 60 extending upward from the fifth refrigerant pipe 59 extends upward through a notch 38 (see FIG. 9) of the top panel 36 of the mechanical unit 2, and It is connected to a heat exchanger (see FIG. 1) 17. Reference numeral 61 denotes a seventh refrigerant pipe connected to the heat exchanger 17, reference numeral 62 denotes a substantially L-shaped eighth refrigerant pipe connected to the seventh refrigerant pipe 61 in the mechanical unit 2, and reference numeral 63 denotes an eighth refrigerant pipe 62.
A substantially U-shaped ninth refrigerant pipe 64 connected to the ninth refrigerant pipe 63 is a tenth refrigerant pipe connected to the connection port 65 of the receiver tank 46. Thus, at the time of shipment from the factory, the sixth and seventh refrigerant pipes 60 and 61 are directed upward and project from the notch 38 of the top panel 36 and the opening 66 of the closing member 54 as shown in FIG.

Then, a part of the refrigerant pipe inside the mechanical unit 2 in such a state is removed and the refrigerant pipe connected to another heat exchanger 67 is knocked out on the right panel 33 of the mechanical unit 2.
When extending from 50, first, as shown in FIG. 8, the tenth refrigerant pipe 64 is replaced with the connection port 65 of the receiver tank 46 so that the tip 67 thereof faces downward. Then, the third refrigerant pipe 57 is connected to the tip 67, and the tip 68 is turned sideways. In this manner, both the tip 68 of the third refrigerant pipe 57 and the tip 69 of the first refrigerant pipe 55 are oriented sideways, and the refrigerant pipes connected to these tips are removed from the knockout hole 50 of the right panel 33 of the machine unit 2. Let it extend. At this time, as shown in FIG. 6, the closing member 54 closes the notch 38 with its opening 66 vertical and applied to the notch 38 of the top panel 36. This blockage prevents rainwater from entering the mechanical unit 2.

Next, the case of (2), that is, the case of stacking only a plurality of mechanical units 2 will be described as follows.
In FIG. 10, a substantially L-shaped leg piece 71 is attached to the lower part of each of the mechanical units 2 and 70. This leg piece 71
Is a first piece 73 provided with one hole 72 and a second piece attached to the front and rear panels with two holes 74 shelled.
It is composed of 75. 76 is left and right panel 32,33
And 77 are mounting holes (mounting portions) formed in the left and right mounting pieces 25 and 28. When another (the other) mechanical unit 70 is mounted on one of the mechanical units 2 of this structure, the leg piece 71 of the other mechanical unit 70 is removed as shown in FIG. The first piece 73 of the leg piece 71 is fixed to the left and right mounting pieces 25 and 28 of the mechanical unit 2, and the second piece 75 faces upward. When the leg piece 71 is fixed to the left and right mounting pieces 25 and 28 of one of the mechanical units 2 as described above, the second piece 75 is attached to the peripheral edge 78 of the mechanical unit 2 as shown in FIG.
, Whereby the dimensions of the second pieces 75 substantially coincide with the width dimension of the mechanical unit 70. Therefore, when the other mechanical unit 70 is placed on one mechanical unit 2 from above, the left and right panels 32 and 33 of the other mechanical unit 70 are connected to the second piece of the leg 71 fixed to the one mechanical unit 2. Along 75. By removing the leg 71 of the other mechanical unit 70 and attaching it to the one mechanical unit 2 in this manner, the leg 71 functions as a positioning member for the other mechanical unit 70. In addition, the second piece 75 is the mounting hole 7 of the left and right panels 32, 33.
6 is fixed with screws (not shown). Since the leg pieces 71 of the machine unit 70 mounted as described above are used as the positioning member and the mounting member, the number of parts can be reduced.

(G) Effect of the Invention As described above, the present invention comprises a heat exchange device, which is a so-called condensing unit of a refrigerator, including a mechanical unit and a heat exchange unit that can be separated from each other. It is a body structure with a panel attached, the top panel is made detachable, and a sound absorbing material is provided on the inner wall of the mechanical unit, and a compressor room containing a refrigerant compressor is connected to the compressor unit. A partition plate is provided for partitioning a refrigerant pipe such as a refrigerant pipe connected to a heat exchange unit and a refrigerant pipe, and a plurality of outlets for the refrigerant pipe are provided on an exterior panel of the pipe chamber. So
One chamber in which the compressor is housed is provided with sound-absorbing material and is substantially sealed.In addition, the piping is drawn out to a piping room in which the compressor is not housed. Since the connection is made, the operating noise of the compressor hardly leaks not only from the compressor room but also from the pipe outlet, and the noise from the mechanical unit can be suppressed as much as possible.

Further, the mechanical unit of the heat exchange device has a body structure in which a panel is attached to a frame, the top panel is detachable, and the heat exchange unit has a blower above the housed heat exchanger. And, since it has a structure in which a service space is formed below the heat exchanger, piping work for suppressing the above-described noise propagation and operation noise in the compressor room and the piping room can be performed from diagonally above the machine unit. Thus, it is possible to install a heat exchange device that further reduces noise leakage from the machine unit.

[Brief description of the drawings]

1 shows an embodiment of the present invention, FIG. 1 is an exploded perspective view of a heat exchange device, FIG. 2 is a cross-sectional view of the device, and FIG. 3 is a front view of the same device with a front panel removed. FIG. 4, FIG. 4 is an explanatory view showing an arrangement state of internal devices of a mechanical unit of the apparatus, FIG. 5 is a sectional view of an essential part of the unit, FIG. 7 is a perspective view showing an arrangement state of the refrigerant pipes of the unit, FIG. 8 is a perspective view showing a different arrangement state of the refrigerant pipes of the unit, and FIG. 9 shows a state where the refrigerant pipes are projected from the unit. Perspective view of main part, No. 10
FIG. 11 is a perspective view showing a state in which the units are stacked, and FIG. 11 is a perspective view showing a state in which legs of the unit are attached. 1 ... heat exchange device (condensing unit) 2 ...
Mechanical unit, 3 ... heat exchange unit, 9 ... blower,
17 ... heat exchanger, 37 ... partition plate, 40 ... compressor room, 41 ...
... (scroller) compressor, 44 ... piping room, 50, 51 ... take-out part (knockout hole).

Continuation of the front page (72) Inventor Hiroshi Sunaga 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (56) References JP-A-3-113217 (JP, A) Jpn. (JP, U) Japanese Utility Model Showa 49-84941 (JP, U) Japanese Utility Model Showa 50-15755 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F28F 9/00 F24F 5 / 00

Claims (1)

(57) [Claims] 1. A use-side unit outside a machine comprising a refrigerant compressor, a heat exchanger for condensing refrigerant gas compressed by the refrigerant compressor, and a blower for cooling the heat exchanger with outside air. After compressing and cooling the refrigerant gas flowing in from the heat exchange device, the cooling operation is continuously performed by sending the refrigerant gas again to the use side unit. And a heat exchange unit, and the mechanical unit has a body structure with a panel attached to the frame, making the top panel detachable, and
A compressor room in which a sound absorbing material is provided on the inner wall of the mechanical unit and a refrigerant compressor is housed therein, and a pipe for housing a refrigerant tube such as a refrigerant tube connected to the compressor and a refrigerant tube connected to the heat exchange unit. A partition plate for partitioning the refrigerant pipe is provided, and a plurality of outlets for the refrigerant pipes are provided on the exterior panel of the piping chamber, and the heat exchange unit is disposed above the heat exchanger housed in the heat exchange unit. A heat exchanger having a blower and forming a service space below the heat exchanger.