JPH0519590Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention relates to an improvement of a mounting device for an accumulator.

(b) Prior Art A conventional accumulator mounting device is constructed as shown in, for example, Japanese Utility Model Publication No. 17081/1981. Here, a conventional example will be explained with reference to this publication. 4 and 5, 50 is a rotary compressor, 51 is a condenser, 52 is a pressure reducing device, and 53 is a rotary compressor.
is an evaporator, and these are connected by piping to form a refrigeration cycle. Evaporator 53 and rotary compressor 50
A first accumulator 54 and a second accumulator 55 connected in series are provided between the two. Reference numeral 56 denotes an inflow pipe, which has one end connected to the evaporator 53 and the other end connected to the upper part of the first accumulator 54 . 57 is an outflow pipe, and this outflow pipe has one end connected to the rotary compressor 50 and the other end connected to the lower part of the second accumulator 55. 58 is a connecting pipe, one end of which is connected to the lower part of the first accumulator 54 and the other end to the second accumulator 5.
It is connected to the top of 5. A first accumulator 54 and a second accumulator 55 are connected to the communication pipe 58.
A vertically rising portion 59 is provided between the two. The first and second accumulators 54 and 55 are attached to the outer wall of the rotary compressor 50 with attachment fittings 60 and 61.

In an accumulator with this structure, the rotary compressor 5
0, the liquid refrigerant in the condenser 51 flows into the pressure reducing device 5.
2. The first accumulator 5 via the evaporator 53
4, the rising part 59 of the connecting pipe 58
This prevents liquid refrigerant from entering the second accumulator 55, and prevents the rotary compressor 50 from compressing the liquid upon restart.

(c) Problems to be solved by the invention However, since the accumulators 54 and 55 attached to the outer wall of the rotary compressor 50 are attached with separate fittings 60 and 61, respectively, the inflow pipe 56 and the communication pipe are When the rotary compressor 50 is operated, the first accumulator 54 connected to the inflow pipe 56 and the communication pipe 5 is swung about the mounting bracket 60 as a fulcrum.
There was a problem that the stress applied to 8 and 8 increased, causing the pipe to break.

This idea solves the above problem by supporting and fixing a plurality of accumulators attached to the outer wall of the compressor at two or more places each, so that the accumulators that are shaken by the compressor when the compressor is running are The purpose is to reduce vibration.

(d) Means for solving the problem This invention is designed to connect the compressor to the compressor through an accumulator that is directly connected to the suction side of the compressor among the multiple accumulators that are attached to the outer wall of the compressor using mounting brackets. An accumulator connected to piping is fixed with a plurality of fittings arranged in the axial direction of the accumulator.

(e) Effect This device is constructed as described above, so that
The accumulator, which is pipe-connected to this compressor via an accumulator that is directly connected to the compressor, is fixed to the outer wall of the compressor using multiple mounting brackets, so that when the compressor is in operation, the accumulator is This prevents the pipe from being shaken by the vibrations of the compressor, making it difficult for stress to be applied to the pipe.

(F) Embodiment This invention will be explained below based on the embodiment shown in FIGS. 1 to 3.

1 is a rotary compressor, 2 is a condenser, 3 is a pressure reducing device,
4 is an evaporator, and these are connected by piping to constitute a refrigeration cycle. 5 and 6 are a first accumulator and a second accumulator connected in series between the evaporator 4 and the rotary compressor 1. Reference numeral 7 denotes an inflow pipe, and this inflow pipe has one end connected to the evaporator 4 and the other end connected to the upper part of the first accumulator 5.
Reference numeral 8 denotes an L-shaped outflow pipe, one end of which is connected to the suction side of the rotary compressor 1, and the other end connected to the lower part of the second accumulator 6. Reference numeral 9 denotes a communication pipe, which has one end connected to the lower part of the first accumulator 5 and the other end connected to the upper part of the second accumulator 6. The communication pipe 9 is provided with a rising portion 10 that rises vertically between the first accumulator 5 and the second accumulator 6. The second accumulator 6 is attached to the outer wall of the rotary compressor 1 with one fitting 11. The first accumulator 5 is attached to the outer wall of the rotary compressor 1 with two fittings 12 and 13. Mounting bracket 1
2 and 13 are provided facing each other across the center in the axial direction of the first accumulator 5. Also, 2
The space between the mounting fittings 12 and 13 is widened.

In the accumulator mounting device configured in this way, the refrigerant compressed by the rotary compressor 1 is discharged to the condenser 2, where it is condensed and liquefied,
The pressure is reduced by the pressure reducing device 3 and the water flows into the evaporator 4. The refrigerant is evaporated in the evaporator 4, returns to the rotary compressor 1 via the first accumulator 5 and the second accumulator 6, and circulates through the refrigeration cycle.

In addition, even if the liquid refrigerant in the condenser 2 passes through the pressure reducing device 3 and the evaporator 4 and accumulates in the first accumulator 5 when the communication pipe 9 is stopped, the liquid refrigerant is transferred to the second accumulator 6. This prevents liquid refrigerant from entering the rotary compressor 1 via the second accumulator 6.

The first storage unit 5 has two mounting brackets 1.
2 and 13 on the outer wall of the rotary compressor 1, it can be connected to the inlet pipe 7 connected to the evaporator 4 and the communication pipe 9 connected to the second accumulator 6 at only two places. The rotary compressor 1 is supported so that it is not easily shaken by the vibrations of the rotary compressor 1, so that the stress acting on the inflow pipe 7 and the communication pipe 9 does not become large. In addition, the second accumulator 6 can be attached to the outer wall of the rotary compressor 1 with one mounting bracket 11 by connecting the L-shaped outflow pipe 8 provided at the lower part to the suction side of the rotary compressor 1. That's what I do.

This invention supports the accumulators 5 and 6 at at least two places in the axial direction to follow vibrations during operation of the rotary compressor 1 and prevent the rotary compressor from swinging around the support part as a fulcrum. This is what I did.

Further, by widening the distance between the mounting fittings 12 and 13, the deflection of the accumulator 5 can be further reduced.

(g) Effects of the invention The accumulator mounting device of this invention is capable of attaching the accumulator directly to the suction side of the compressor among the plurality of accumulators attached to the outer wall of the compressor using mounting brackets. Since the accumulator that is piped to the compressor is fixed with multiple mounting brackets arranged in the axial direction of this accumulator, the accumulator that is attached to the outer wall of the compressor must be fixed in at least two places. By doing so, the accumulator can follow the vibrations of the compressor and can be prevented from being shaken by the compressor, which can prevent pipes connected to the accumulator from being stressed and causing pipe breakage. .

[Brief explanation of drawings]

Figures 1 to 3 show this invention, Figure 1 is a refrigeration circuit diagram incorporating a rotary compressor with an accumulator attached to the outer wall, and Figure 2 is a diagram of a refrigeration circuit incorporating a rotary compressor with an accumulator attached. A plan view of main parts showing the condition,
Fig. 3 is a front view showing the state in which the accumulator is attached to the rotary compressor, Figs. FIG. 2 is a front view of the rotary compressor shown attached to the rotary compressor. 1... Rotary compressor, 2... Condenser, 3... Pressure reducing device, 4... Evaporator, 5... First accumulator, 6... Second accumulator, 11, 12,
13...Mounting bracket.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A compressor, a condenser, a pressure reducing device, and an evaporator are connected by piping, and a plurality of accumulators are provided between the evaporator and the compressor, which are connected by piping in series,
In addition, in the accumulator mounting device in which the plurality of accumulators are attached to the outer wall of the compressor with mounting brackets, an accumulator that is directly connected to the suction side of the compressor among the plurality of accumulators is provided. An accumulator mounting device characterized in that an accumulator that is pipe-connected to the compressor through the accumulator is fixed to the outer wall of the compressor with a plurality of mounting brackets arranged in the axial direction of the accumulator. . 2. The accumulator mounting device according to claim 1, wherein the plurality of mounting brackets for mounting the accumulator on the outer wall of the compressor have wide intervals between the mounting brackets. 3. The accumulator attachment device according to claim 1, wherein the plurality of attachment fittings are attached to the outer wall of the compressor at both ends of the accumulator in the axial direction.