JPS5922446Y2 - Refrigerant tank equipment for refrigeration cycle - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a refrigerant tank device for a refrigeration cycle in which the structure of the refrigerant tank is improved.

As a refrigerant device, for example, as shown in FIG. 1, a compressor 1 is connected to a condenser 3 through a refrigerant pipe 2, a liquid tank 4 as a refrigerant tank, a capillary tube (expansion mechanism) 5,
Evaporator 6, suction volume 7 as refrigerant tank
is connected to form a refrigeration cycle, and the liquid tank 4 adjusts the amount of liquid refrigerant flowing into the capillary tube 5, and the suction volume 7 prevents liquid refrigerant from flowing into the compressor 1. It is known that this was done.

However, in the past, suction volume 7
was attached to the compressor 1, the vibrations of the suction volume 7 were transmitted to the compressor 1, resulting in increased noise and the inconvenience that the compressor 1 would tilt, causing a malfunction.

Furthermore, since the suction volume 7 and the liquid tank 4 are manufactured separately, the cost is also high.

Incidentally, as a device in which the suction volume 7 and the liquid tank 4 are manufactured integrally, the one shown in FIG. 2 is known.

However, in the case shown in Fig. 2, it is difficult to fix the partition plate 8 because strong pressure acts on the partition plate 8 in the center, and the center part tends to bulge due to pressure, making it even more difficult to partition and dangerous in terms of pressure resistance. It had become a thing.

Further, when the desiccant 9 is stored in the liquid tank 4, the desiccant 9 must be held by a holding plate 10 having a plurality of through holes 10a, which reduces the number of parts. There is an inconvenience that the size increases and the cost increases.

The present invention was developed in view of the above circumstances, and its purpose is to provide a refrigeration system that can firmly integrate the first and second refrigerant tanks with a simple structure, and that can simplify manufacturing and reduce costs. The present invention aims to provide a cycle refrigerant tank device.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 3 to 5.

In the figure, 11 is a compressor, and this compressor 11 is sequentially connected to a condenser 13 via a refrigerant pipe 12, a liquid tank 14 as a first refrigerant tank, and a capillary tube (expansion mechanism) 15.
, a connection valve 16, an evaporator 17, a connection valve 18, and a suction volume 19 as a second refrigerant tank are connected to form a refrigeration cycle A.

The above liquid tank 14 and suction volume 1
9 is a cylindrical first tube having the same shape as shown in FIG. Second
are formed by respective tank structures 20.20.

The first of these. Each of the second tank structures 20, 20 is provided with a tubular constriction 21, 22 at each end.

Furthermore, the first. The outer diameter of each constricted portion 21 at one end of the second tank structure 20.20 is smaller than the inner diameter of each constricted portion 22 at the other end.

Further, the second tank component 20 forming the suction volume 19 has a constricted portion 21 (the tip of the constricted portion 21 is pinched off (occluded) and sealed).

) is fitted into the constricted portion 22 of the first tank structure 20 forming the liquid tank 14 and is welded and integrated.

A desiccant 23 is inserted into the nokid tank 14.

The desiccant 23 is housed in a wire mesh bag made of stainless steel or the like and formed into an annular shape, and is provided along the outer periphery of the constricted portion 21 of the second tank structure 20 forming the suction box 19.

Further, above the desiccant 23, there is a refrigerant pipe 2 for leading out the liquid refrigerant from the liquid tank 14 to the capillary tube 15.
4 is positioned, and the refrigerant pipe 24 restricts the movement of the desiccant 23 in the vertical direction.

In the above configuration, when the compressor 11 is operated, compressed refrigerant gas is discharged from the compressor 11 and sent to the condenser 13, where it is condensed and then sent to the liquid tank 14. After a portion of the liquid refrigerant is collected in 14, it is sent to capillary tube 15.

After being depressurized by this capillary tube 15, it is sent to an evaporator 17, where it is evaporated, and then sent to a suction volume 19, where the liquid refrigerant contained in the gas refrigerant is collected, and only the gas refrigerant is compressed. You will be sucked into the plane.

The connection valves 16 and 18 are used to connect the two units in a so-called split type air conditioner in which the evaporator 17 is housed in the indoor unit and other refrigeration cycle components are housed in the outdoor unit. .

As explained above, the present invention forms large and small constricted portions at both ends of the first and second refrigerant tanks, respectively, so that the first refrigerant can flow while the small diameter constricted portions of the second refrigerant tanks are closed. Because it fits into the large-diameter constriction of the tank and integrates the two, unlike conventional methods in which the refrigerant tank is attached to the compressor, vibrations are prevented from being transmitted to the compressor, reducing noise and reducing the slope of the compressor. This makes piping design easier.

Furthermore, when used in an outdoor unit of a split type air conditioner, for example, it can be made thinner and more compact, and the generally attached soundproofing material can also be made smaller.

Furthermore, since the central part of the integrated tank is narrowed down to a small diameter, it has high pressure resistance and safety, and eliminates the need for partition plates or holding plates, which simplifies manufacturing and reduces costs. It is something to play.

[Brief explanation of the drawing]

Fig. 1 and Fig. 2 show a conventional example, Fig. 1 is a schematic configuration diagram showing a refrigeration cycle, Fig. 2 is a vertical sectional view showing a refrigerant tank, and Fig. 3 to Fig. 5 are a diagram of the present invention. Fig. 3 is a schematic configuration diagram showing a refrigeration cycle, Fig. 4 is a vertical cross-sectional view showing a tank structure, and Fig. 5 is a first embodiment.
．． It is a longitudinal cross-sectional view showing a state in which both second refrigerant tanks are integrated. 11... Compressor, 13... Condenser, 1
4...Liquid tank (first refrigerant tank),
15... Capillary tube (expansion mechanism), 1
7... Evaporator, 19... Suction volume (second refrigerant tank), 20... (1st and 2nd each) tank components, 21.22・・・・・・
Aperture part.

Claims (1)

[Scope of utility model registration request] A first refrigerant tank connected between a condenser and an expansion mechanism to adjust the amount of liquid refrigerant introduced into the expansion mechanism; and a first refrigerant tank connected between an evaporator and a compressor to supply liquid refrigerant to the compressor. In a refrigerant tank device for a refrigeration cycle that includes a second refrigerant tank that prevents the inflow of refrigerant, the first refrigerant tank has the same shape and has tubular constrictions at both ends. A second respective tank arrangement is provided, and a second respective tank arrangement is provided. The constricted portion on each one end side of the second tank structure is shaped to have a smaller diameter than the constricted portion on each other end side,
The small diameter embossed portion of the second tank structure is inserted into and connected to the large diameter constricted portion of the first tank structure in an open state, so that the first tank structure is connected to the first refrigerant tank. , the second refrigerant tank is formed by the second tank structure, and a wire mesh bag formed in an annular shape and containing a desiccant for removing moisture is placed inside the first refrigerant tank. An introduction end of a refrigerant pipe that is disposed around a small diameter constriction part of the second refrigerant tank and that leads liquid refrigerant from the first refrigerant tank to the expansion mechanism is inserted into the inside of the first refrigerant tank. A refrigerant tank device for a refrigeration cycle, characterized in that an introduction end of the refrigerant pipe is disposed above the wire mesh bag to restrict vertical movement of the wire mesh bag.