JPS6048470A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical packaging of the invention] The present invention relates to a refrigeration device used, for example, in a freezer or an air tank.

[Technical background of the invention]

As shown in FIG. 1, this glazed refrigeration system, which has already been proposed, is equipped with a V-type condenser (condenser) 3 at the discharge pipe 2 of the refrigerant compressor 1, which forms the refrigeration cycle. Connect the receiver tank l to this condenser 3! through W
Furthermore, a dryer 7, an expansion valve g, a cooler (evaporator) 9, and an achievator 10 are installed in the refrigerant pipe 6 connected to the receiver so as to form an AQS passage. In addition, in the above, the outside of the expansion valve r and the cooler is covered with krT heating material l/,
Keep both of the above items cold! Therefore, the above-mentioned [7 refrigeration equipment 1q], cold tofu compression (dan/) is formed into stripes so that the cold tofu is EF at 7 4 Cold 'fi+i' for hollowed-out high-temperature tubes
(Gas) All of the gas is force-fed to the hNJIFl unit 3 through the above-mentioned discharge pipe λ, and here, the second side refrigerant gas is heat-exchanged to produce a liquid refrigerant, and this liquid cooling U~1 is passed through the above-mentioned connecting pipe j to the above-mentioned receiver. The refrigerant which is stored in the tank t and which has reached the receiver tongue puffer is transferred to the dryer 7 through the refrigerant pipe 2 which is connected to the lower part of the receiver tongue puffer. However, this 12 layer 7 is
Spreads and collects moisture contained in the refrigerant [2. After that,
This 1:' The refrigerant that has passed through the layer 7 is the hot material //
The air is sent to the expansion valve g, which is surrounded by the air, where the pressure is reduced.

The refrigerant pressurized to δ is transferred to the evaporator, where it exchanges heat with X and cools the atmosphere.On the other hand, the refrigerant that has completed the heat exchange passes through refrigerant pipe t and is transferred to the evaporator and Q. After being transferred and cooled, the chilled liquid in the achievable mulcher 10 is transferred (refluxed) to the refrigerant compressor through a supply pipe 7).

[Problems with background technology]

However, the above-mentioned refrigeration equipment consists of a part of the refrigeration cycle consisting of the outlet pipe 2, the chilled tofu pipe 2, and the supply pipe/2.
The amount of water remaining in the bath increases as the water content in the bath increases. The excess water that cannot be drained is stored in the liquid layer/aqueous layer at the top of the liquid-cooled 9/3 of the receiver tank Hironai.
form q. This is because the specific gravity of water (about 2) is smaller than the specific gravity of liquid refrigerant (about 2).

On the other hand, since the receiver tongue puffer output log a is provided at the bottom of the receiver tongue puffer, during normal refrigeration cycle operation, the water accumulated in the upper part of the liquid refrigerant /3 in the receiver tongue puffer is removed. Although the liquid layer/l does not immediately flow out into the refrigerant pipe 2, the amount of water in the liquid refrigerant in gM is determined by the temperature and pressure in the receiver tank.
An amount of water depending on the temperature is transferred into the refrigerant by the expansion valve GL. In this case, an upper rudder dryer 7 is attached to the middle of the refrigerant 9. Although this dryer 7 is theoretically designed to adsorb and collect moisture in the liquid refrigerant, in reality it is In this case, it is difficult to reduce the moisture caused by a high level of, for example, several hundred ppm, to a low level of several tens of ppm, which does not cause any actual damage, during seven passes.

In this state of service life, when the ambient temperature of the part of the refrigeration cycle enclosed by the chain line in Figure 1 rises, the temperature of the refrigerant medium /3 in the receiver tank ψ also rises, and the solubility of water increases. becomes thicker3, as a result, the receiver tank t
The amount of dissolved water in the liquid refrigerant transferred from the refrigerant pipe 6 to the expansion '3J*3flf- is significantly different by 1, and j
After being throttled by the length and tension valve g, the pressure of the refrigerant decreases: @,
When the cooling state is reached, the 71 in the refrigerant (separated, water and [7
The ice particles precipitate and adhere to the constriction part, which can block the flow path and make it difficult to perform normal refrigeration function1, which poses a problem in the reliability of the refrigeration system. There is.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and it is possible to keep the ambient temperature of a receiver tank cool so that it does not fluctuate even if the ambient temperature in the refrigeration cycle fluctuates, thereby removing moisture contained in the refrigerant. The object of the present invention is to provide a refrigeration system M which is designed to prevent water from precipitating as water, which collects with ice and freezes in the throttle area of the expansion valve g, resulting in Hfa. Narrow shelf] The present invention provides a cold insulation member' on the outer periphery of a receiver tank that is provided through a refrigerant pipe between a condenser and a dryer in a cold α cycle. ! - It is constructed so that the water contained in Rei&~1 does not precipitate as ice.

[Embodiments of the invention]

The present invention will now be explained with reference to an illustrated embodiment. In addition, the present invention will be explained by assigning the same reference numerals to the same components as those in the above-mentioned example.7 In FIG. A condenser 3 is provided in the discharge pipe λ of the refrigerant compressor, and a receiver tank t is connected to the condenser 3 through a connecting pipe j. A refrigerant pipe t is connected. Further, this refrigerant pipe A7 is provided with a moss dryer 7, an expansion valve g, a cooler and an akeemulator 10, and a supply pipe 7.2 supplies refrigerant to the refrigerant compressor/to the akeemulator 10. It is piped in this way. Furthermore, the expansion valve ♂ and the cooler 2 are covered with a heat insulating material on the outside, so that the expansion valve ♂ and the cooler 2 are kept cool against changes in ambient temperature. ing.

On the other hand, a heat insulating material 15 is provided around the outer periphery of the receiver tank≠.
A cold insulation insulating member 17 composed of a cooling pipe/6 and a cooling pipe/6 is provided so as to be able to always maintain constant cooling against changes in ambient temperature. −.

Therefore, the uninvention is that the excess water that cannot be dissolved in the refrigerant forms an aqueous layer on the upper part of the liquid refrigerant 13 in the Seaver tank V, and that the chain 5 in FIG. Even if the ambient temperature rises, even if the ambient temperature rises, the refrigerant pipe 6, which forms part of the four-layered frozen cycle in one tank, is always kept constant due to the temperature of the receiver tank puffer. The moisture in the liquid refrigerant transferred through the expansion valve g trench does not precipitate as water, so there is no risk that it will collect with ice and stay in the throttle part of the carved valve, blocking the flow path. I'm not afraid to do it.

Next, another embodiment of the present invention shown in FIG.
At the same time as cutting out the heat material/g,
One end of the cooling pipe/B buried in the heat insulating shell/g near the tank≠ is connected to the cooler, and the other end of the cooling pipe A is connected to the accumulator 10. , so that the cooling pipe/Af can be cooled with the refrigerant that has finished its work in the cooler.

〔Effect of the invention〕

As described above, according to the present invention, since the cold insulation material 7 is provided around the outer circumference of the receiver tongue blower, which is provided through the refrigerant pipe A between the condenser 3 and the dryer 7 in the refrigeration cycle, the liquid refrigerant is 2) The water in the liquid refrigerant precipitates out as water. Therefore, there is a possibility that this γ1 will get stuck with ice and stick to any throttle part of the expansion valve. Since it is 11 times, it has excellent effects such as being able to be integrated into existing equipment.]
Ru.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a refrigeration system that has already been proposed, Fig. 2 is a diagram showing a refrigeration system according to the present invention, and Fig. 3 is a diagram showing a refrigeration system according to the present invention.
It is a diagram showing another embodiment of the present invention, /... Refrigerant pressure knitting machine, 3... Condenser, Grey... Receiver tank, 7... Dryer, r... Expansion valve. , T...Cooler, /0...Accumulator, //A insulation material, /5...Insulation material, /6...Cooling pipe, l7...Cold insulation member. Applicant's agent Kiyotou Inomata, 3rd step

Claims (1)

[Claims] /, Condensation h in refrigeration cycle? (Receiver tank installed through a refrigerant pipe between the container and the dryer)
A refrigeration device 2 characterized by having a cold insulation insulation member provided around the periphery, and a special Wl-Seal of Insulation (1fj4 The refrigeration device 3 described above is characterized in that the cooling tube is cooled with a refrigerant used in the entire refrigeration cycle [7]
The refrigeration device described in Section 1.