JPH0218456Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a refrigeration system, and particularly to a refrigeration system that has high adiabatic efficiency and is easy to assemble.

For example, in a water-cooled refrigeration system as a conventionally commonly used refrigeration system, a compressor, a cooler as a usage side evaporator, a non-use side condenser,
It consists of a throttle device and a control panel that controls its operation, and the surrounding area needs to be insulated to prevent heat loss from the cooler. For this reason, conventional devices have the problem of requiring difficult work such as wrapping a heat insulating material around them. Therefore, the object of this invention is to eliminate the above-mentioned drawbacks and to improve the ease of assembly. Hereinafter, the refrigeration system according to this invention will be explained in detail using the drawings.

1 and 2 are exploded perspective views showing an embodiment of the refrigeration system according to this invention. In the same figure, 1
is a refrigeration system, and is composed of a machine room section 2 and a heat exchanger section 3. In the same figure, 4
The frame 4a is made by bending a relatively thin steel plate in the front, back, left and right directions to form a T-shape. The frame 4a is a projection for positioning the front panel, which will be described later. 5 is a U-shaped steel frame for installing a compressor and a compressor support plate, which will be described later. They are planted in parallel. 4
c indicates screw holes provided at the left and right front ends for vertically fixing the support column to the underframe 4, 6 indicates the configuration of the condenser on the non-use side, and 7 indicates the screw holes at the bottom. It shows the heat exchange part of the non-use side condenser that exchanges heat between the built-in refrigerant and the circulating cooling water,
It is constructed of a double-tube type including an outer tube 7a through which refrigerant flows and an inner tube 7b through which water flows. 7
C is a water pipe that communicates with the water circuit of the non-use side condenser 6, and two water pipes 7c, upper and lower, are provided on the left and right. 8 connects the struts described later to the unused side condenser 6
The through holes 9 for attachment with the connecting plate 10 to be provided on the upper part of the holder are two pillars formed by bending a relatively thick steel plate into an L-shape. has a bolt hole 9a corresponding to the screw hole 4c at the end of the underframe 4. Therefore, if the lower end of each support column 9 is overlapped with both front ends 4d of the underframe 4 and the bolts are inserted into the screw holes 4c and bolt holes 9a and tightened, the lower end of each support support is connected to the end of the underframe 4. It is assembled integrally by touching the parts.

9b is a through hole for fixing a connecting plate, which will be described later; 9c is a through hole for fixing a control device, which will be described later; 10 is a through hole 9b in a column located on the front side and a condenser 6 on the unused side attached to the back side. It is a connecting plate that is fixed with screws through through holes 8 provided on both sides, and the side part has a relief notch 10a for the piping connection port of the non-use side condenser 6.The use side evaporator (described later) is located at the upper rear part of the side part. L-shaped cut-and-raised portions 10b and through holes 10c are provided so as to be fixed with screws after positioning. Further, a through hole 10c for fixing a user side evaporator, which will be described later, is provided in the center of the upper part.

Reference numeral 11 denotes a compressor support plate made of a relatively thick steel plate that is attached to the frame 5 on the underframe 4.
It is positioned and fixed by a screw hole provided in the. Further, a compressor, which will be described later, is attached to the upper part of the compressor support plate 11. Reference numeral 13 denotes a compressor that is attached to the upper part of the compressor support plate 11 via a vibration-proof rubber (not shown).
The structure is such that vibrations caused by the operation of step 2 do not propagate to the underframe 4.

This forms the framework of the machine room section 2. Reference numeral 13 shows the configuration of the use side condenser installed on the connecting plate 10 formed by screwing the support 9 and the non-use side condenser 6, and 12a shows the inner pipe 12a and the inner pipe through which the refrigerant flows. It consists of an outer tube 12b through which water flows around the outer periphery of the tube 12a, and is wound into a coil to form a multi-tube structure. Reference numeral 12c is a water pipe that communicates with the water circuit of the user-side evaporator 12, and two pipes are provided on the left and right, upper and lower.

Furthermore, holes for screws are formed in the back surface (not shown) of the U-shaped steel plate at positions corresponding to the through holes provided in the L-shaped cut and raised portions 10b of the connecting plate 10. The rectangular parallelepiped portion surrounded by the U-shaped steel plate is completely insulated and molded with a foamed material such as urethane foam resin to prevent heat radiation loss from the user side evaporator 12 and water droplets from falling due to condensation.

12d is an L-shaped reinforcing plate provided at the front of the user side evaporator 12, with through holes 12 bored at both ends.
The user side evaporator 12 is fixed to the connecting plate through the hole e. A through hole 12f for fixing a control device, which will be described later, is also formed in the center.

Reference numeral 14 denotes a control panel in which various control parts for controlling the operation of the refrigeration equipment, as well as switches and indicator lights for operation are housed. Control parts are provided in each concave part of the control box 14a, and convex parts are provided in each concave part of the control box 14a. A switch and indicator light are attached to the section. Reference numeral 15 is a side plate installed on the upper part of the underframe 4 and fixed with screws together with a through hole drilled in the support column 9. Reference numeral 16 is a rear plate of a relatively thin steel plate, and a plurality of pieces are provided at both ends of the side plate. A through hole 16 is drilled,
Further, a rear plate 16 is fixed to side plates 15 attached to both ends of the underframe 4 with screws. Reference numeral 17 is a top plate made of a relatively thin steel plate that is attached to the top of the main body.The periphery is bent into an L shape and hangs down, and the top plate 17 is covered from the top with side plates 15 and rear plate 16 in between. and is fixed with screws through through holes 17a drilled on the left and right sides. Reference numeral 18 denotes a front panel formed by bending the periphery of a relatively thin steel plate into an L-shape, and the upper part thereof has holes 18a for screws that are fixed through through holes 17b drilled in the top plate 17. A through hole 18b is provided in the lower part of the underframe 4 so as to be fixed in position by being pushed into a positioning protrusion 4a provided at the front part of the underframe 4.

The refrigeration system configured as described above is assembled as follows. First, compressor support plates 11 are provided on the frame 5 on the left and right sides of the upper front part of the underframe 4, respectively, and the compressor 13 is fixed to the upper part of the frame 5 via anti-vibration rubber (not shown). . A condenser 6 on the non-use side is installed at the rear of the upper part of the underframe 4, and the through hole 4b in the side surface of the underframe 4 and the screw hole in the lower part of the side plate of the condenser 6 on the non-use side are connected with bolts. Fastened and fixed. Next, the supports 9 are vertically attached to both front ends of the underframe 4 and fastened and fixed to the screw holes with screws. Next, a connecting plate 10 is attached using the support 9 attached to the front part, the through hole 8 made in the non-use side condenser 6 attached to the rear part, and the through hole made in the connecting plate 10.

A user side evaporator 12 is attached to the upper part of this connecting plate 10.

The load of the user side evaporator 12 is applied to the underframe 4 via the left and right supports 9, and to the connecting plate 10 and the non-use side condenser 8, which are fixed with screws.

In this state, the piping (not shown) of the refrigerant circuit composed of the compressor and the heat exchange section is connected.

Next, a control device 1 is installed in the front part of the user side evaporator 12.
4 is attached, and the through hole provided in the convex portion and the through hole 9c provided in the support column 9 are fastened and fixed with screws.

Next, the side plates 15 are attached to the underframe 4, and after the rear plate 16 and top plate 17 are fixed, the upper front panel 19 is
is attached to the top plate 17 through the through hole 17a, and is attached to the positioning projection 4a of the underframe 4 through the through hole 18b of the lower front panel 18.

Next, the control operation of the refrigeration system will be explained. In FIG. 3, the high-temperature, high-pressure gas refrigerant discharged from the compressor 13 enters the refrigerant pipe of the non-use side condenser 6, and the inner pipe of the double-pipe heat exchanger 7 is filled with cooling water, and the outer pipe As the refrigerant passes through, it becomes a high-pressure liquid refrigerant after exchanging heat with the cooling water, and then, by passing through the expansion device 19, it becomes a low-pressure liquid/gas mixed refrigerant and is sent to the user-side evaporator 12. Cold water passes through the outer tube of the multiple heat exchanger, and refrigerant passes through the inner tube, and after exchanging heat with the cold water, it returns to the compressor 13 as a gas refrigerant. In this way, a refrigeration cycle is constructed, and this operation is repeated thereafter.

Although noise is generated from the compressor 13, a front panel 18 is provided at the front, side plates 15 are provided at both sides, and an upper part of the unused condenser 6 is provided at the rear. Since the user-side evaporator 12 is provided with complete insulation, the sound insulation effect is increased and noise reduction is achieved.

As explained above, the refrigeration system according to this invention installs a compressor in front of the upper part of the underframe and a condenser on the non-use side at the rear, and then attaches a connecting plate between the support and the condenser on the non-use side. The user side evaporator is arranged above the side condenser and the connecting plate, and its surroundings are covered by the front panel side plate, top plate, and rear plate. Therefore, assembly becomes easy, and the sound insulation effect is improved, resulting in low noise. Furthermore, since the heat exchange portion is completely insulated, heat radiation loss and dew condensation from the user-side heat exchanger can be prevented.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the refrigeration system according to this invention, FIG. 2 is a perspective view of various parts of the refrigeration system shown in FIG. 1, and FIG. 3 is a refrigerant system diagram of the refrigeration cycle. 3... Heat exchange section, 4... Underframe, 9... Support column, 6
... Condenser, 12 ... Cooler, 14 ... Control panel,
15... Side plate, 16... Rear plate, 17... Top plate, 1
8...Front panel. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A compressor installed at the front of the upper part of the underframe, a condenser on the non-use side installed behind the compressor, the underframe, the condenser on the non-use side, and a support provided at the front end of the underframe. The left and right connecting plates are supported and fixed by the
A utilization side evaporator is provided on the connection plate and above the non-utilization side condenser, and a control device is provided in front of the utilization side evaporator. A refrigeration system in which a connecting plate and the control device are covered with a top plate, a side plate, a rear plate, and a front plate.