JPH1163741A - Receiver in freezing cycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a receiver of freezing cycle in which its small diameter can be attained, refrigerant-saving can be realized and its installability on a bus vehicle can be improved. SOLUTION: A receiver 4 is constituted by a lateral pipe 6 arranged in a horizontal direction crossing at a right angle with a vertical direction and formed with a gas-liquid separating section 21 inside of it, and a vertical pipe 7 extended from a communication port 22 formed in the midway part of a longitudinal direction of the lateral pipe 6 in a substantial upper part and forming a liquid reservoir 25 inside of it. An inlet pipe 8 is connected to a substantial upper part of one end of the lateral pipe 6 and an outlet pipe 9 is connected to a substantial lower side of the other end of the lateral pipe 6. Then, an inner diameter of each of the lateral pipe 6 and the vertical pipe 7 is set to be ϕ30 mm to ϕ40 mm more than three times of an inner diameter of each of the inlet pipe 8 and the outlet pipe 9, thereby the receiver 4 is made fine in respect to a barrel diameter of more than ϕ80 mm of the prior art receiver while a sufficient gas-liquid separating performance and a liquid storing performance can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigeration cycle receiver connected between a refrigerant condenser and a pressure reducing means of a refrigeration cycle.

[0002]

2. Description of the Related Art A refrigeration cycle 100 having a compressor 101, a condenser 102, a substantially cylindrical receiver 103, a supercooler 104, an expansion valve 105, and an evaporator 106 as shown in FIGS. I have. An inlet pipe 131 of the receiver 103 is connected via refrigerant pipes 107 and 108 connected to an outlet tank of the condenser 102. The outlet pipe 132 of the receiver 103 is connected to the refrigerant pipes 109 and 11 connected to the inlet tank of the supercooler 104.
0. And the capacitor 102
And the supercooler 104 are one air-cooled heat exchanger 111
, And the receiver 103 is installed beside the air-cooled heat exchanger 111. This receiver 1
03 has a cylindrical shape, and has an internal volume of φD × H.

The operation of the refrigeration cycle 100 is as follows. A high-temperature, high-pressure gas refrigerant compressed and discharged by a compressor flows into a condenser 102 and is condensed and liquefied. The refrigerant flowing from the condenser 102 into the receiver 103 in a gas-liquid mixed state via the inlet pipe 131 when flowing horizontally from the inlet 133 to reach the outlet 134 as shown in FIG. The gas refrigerant is separated by buoyancy and accumulates above the receiver 103. On the other hand, the liquid refrigerant separated from the gas refrigerant is sent from the receiver 103 to the supercooler 104 via the outlet pipe 132.

[0004] Conventionally, as shown in Figs. 18 to 20, a compressor 201 and an indoor heat exchanger 20 are provided.
2. Reversible receiver 203 of substantially cylindrical shape, outdoor heat exchanger 2
A refrigeration cycle (heat pump cycle) 200 having an expansion valve 204, first and second expansion valves 205 and 206, first and second check valves 207 and 208, and a four-way valve 209 is also known. The first pipe 231 and the second pipe 232 of the reversible receiver 203 of the refrigeration cycle 200 are connected to the outer wall of the reversible receiver 203 in a state where the refrigerant flows in the joint with the reversible receiver 203 in the same direction. Have been.

[0005]

However, in the conventional receiver 103 and the reversible receiver 203, sufficient gas and liquid are required for the refrigeration cycles 100 and 200 having a large flow rate (Max: about 700 kg / h) for bus vehicles or the like. In order to obtain separation performance, at least φD (for example, φ80 mm to φ100
mm) or more, the mounting space on a bus vehicle or the like has increased. Further, since the container bodies of the receiver 103 and the reversible receiver 203 have large diameters as described above, there is a problem that a large amount of refrigerant is required.

Further, since the conventional receiver 103 is installed on the side of the air-cooled heat exchanger 111, a space for mounting a condensing unit including the air-cooled heat exchanger 111 and the receiver 103 on a bus vehicle or the like is reduced. The problem that it becomes large has arisen. Further, refrigerant pipes 107 to 1 for connecting the receiver 103 and the air-cooled heat exchanger 111 are provided.
10 becomes long, and there is a problem that the handling of the refrigerant pipes 107 to 110 becomes complicated.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigeration cycle receiver capable of providing the same gas-liquid separation performance and liquid storage performance as a conventional receiver by changing the specifications of piping of the refrigeration cycle. It is in. Another object of the present invention is to provide a refrigeration cycle receiver capable of reducing the diameter and saving the refrigerant. It is still another object of the present invention to provide a refrigeration cycle receiver capable of improving the mountability of a condensing unit on a vehicle or the like.

[0008]

According to the first aspect of the present invention, a refrigerant in a gas-liquid two-phase state is placed in a gas-liquid separation portion of a horizontal pipe arranged in a substantially horizontal direction perpendicular to the vertical direction. When the gas refrigerant flows into the gas-liquid separator, the gas refrigerant gathers substantially above the horizontal pipe due to buoyancy when flowing in the gas-liquid separation section in a substantially horizontal direction. As a result, the refrigerant is gas-liquid separated in the gas-liquid separation section of the horizontal pipe, and only the liquid refrigerant flows out of the horizontal pipe to the outside. In addition, in the operation mode in which the refrigerant circulation amount required for the refrigeration cycle is small,
A liquid refrigerant is stored together with a gas refrigerant in a liquid chamber of a vertical tube extending from a substantially upper side of the horizontal tube. Therefore,
By configuring the refrigeration cycle receiver with the horizontal pipe and the vertical pipe, it is possible to reduce the diameter and save the refrigerant while maintaining the same gas-liquid separation performance and liquid storage performance as the conventional receiver.

According to the second aspect of the present invention, the outlet pipe connected substantially below the one end in the extension direction of the horizontal pipe is connected so as to protrude radially outward of the horizontal pipe. Thereby, it is possible to prevent the gas refrigerant collected on the upper side of the horizontal pipe from flowing into the outlet pipe due to buoyancy. According to the third aspect of the present invention, the vertical pipe is connected between one end in the extension direction of the horizontal pipe and substantially the center thereof, so that the vertical pipe flows into the horizontal pipe and is substantially horizontal in the horizontal pipe. When flowing in the direction, the gas refrigerant that has been gas-liquid separated easily accumulates in the vertical pipe.

According to the fourth aspect of the present invention, the refrigerant in the gas-liquid two-phase state flowing from the inlet pipe into the first gas-liquid separation section of the horizontal pipe flows substantially horizontally in the first gas-liquid separation section. When flowing, the gas refrigerant gathers on the upper side of the horizontal tube due to buoyancy,
Penetrates into the vertical chamber. On the other hand, the liquid refrigerant gas-liquid separated in the first gas-liquid separation section flows out to the outlet pipe through the second gas-liquid separation section of the horizontal pipe.

According to the fifth aspect of the present invention, the container body of the refrigeration cycle receiver constituted by the horizontal pipe and the vertical pipe is formed to have a slightly larger pipe shape than the inlet pipe and the outlet pipe. Since the body diameter can be made smaller than the container body of the receiver, the diameter and size can be reduced. Also, by reducing the diameter and size of the container body of the refrigeration cycle receiver,
That is, the amount of refrigerant charged in the refrigeration cycle can be reduced.

According to the sixth aspect of the present invention, a refrigeration cycle receiver including a horizontal pipe and a vertical pipe is installed in an air passage through which air passing through a heat exchanger of the refrigeration cycle flows. As a result, the refrigeration cycle receiver can be overlapped before and after the heat exchanger, so that the condensing unit can be more easily mounted on a vehicle or the like. In addition, since the length of the refrigerant pipe connecting the refrigeration cycle receiver and the heat exchanger can be shortened or the refrigerant pipe can be eliminated, the refrigerant pipe can be easily handled, and condensing can be performed. The mountability of the unit on a vehicle or the like can be improved.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION

[Configuration of First Embodiment] FIGS. 1 to 5 show a first embodiment of the present invention.
FIG. 1 is a view illustrating a receiver of a refrigeration cycle, and FIG. 2 is a view illustrating a refrigeration cycle of an air conditioner for a bus vehicle.

In the refrigeration cycle 1 of the air conditioner for a bus vehicle according to the present embodiment, a compressor 11, a condensing unit 12, an expansion valve 13, and an evaporator 14 are sequentially connected by a refrigerant pipe 15. Of these,
The compressor 11 is connected to an engine mounted on a bus vehicle via an electromagnetic clutch (not shown). When the electromagnetic clutch is energized (ON),
The rotational power of the engine is transmitted to the compressor 11, and the compressor 11 performs suction, compression, and discharge operations.

Next, the condensing unit 12 is shown in FIG.
A description will be given with reference to FIG. Here, FIG. 3 is a diagram showing the condensing unit 12. The condensing unit 12 heat-exchanges cooling air blown by a cooling fan (not shown) with the refrigerant, thereby cooling the refrigerant. And the like.

The air-cooled heat exchanger 2 is installed, for example, in a place where the traveling wind of the vehicle is apt to receive, and includes a condenser 3 connected to the upstream side of the receiver 4 and a supercooler 5 connected to the downstream side of the receiver 4. It is provided integrally. The air-cooled heat exchanger 2 includes a plurality of U-tube-shaped condenser tubes (both not shown) provided between the inlet tank and the intermediate tank, and a downstream side in the air flow direction from the condenser tubes. And a plurality of supercooler tubes (none of which are shown) provided between the intermediate tank and the outlet tank.

Here, the condenser 3 is connected to the compressor 1
It functions as a refrigerant condenser that condenses and liquefies the gas refrigerant that has flowed in from the air by exchanging heat with air. Super cooler 5
Works as a supercooler for supercooling the liquid refrigerant flowing from the receiver 4 by exchanging heat with air.

Next, the receiver 4 will be described with reference to FIGS. Here, FIG. 4 and FIG. 5 are views showing the receiver 4. The receiver 4 corresponds to the refrigeration cycle receiver of the present invention, and includes a horizontal pipe 6 installed in a horizontal direction substantially perpendicular to the vertical direction of the vehicle and a longitudinal direction of the horizontal pipe 6. It is configured in a substantially T-shape by a vertical pipe 7 installed in a vertical direction perpendicular to the vertical direction. The receiver 4 is installed so as not to hinder the heat radiation on the front surface of the air-cooled heat exchanger 2, that is, to cross the air-cooled heat exchanger 2.

The horizontal pipe 6 is a metal pipe made of aluminum or the like, and has a gas-liquid separation section 21 formed therein for separating the refrigerant into gas and liquid. The lateral pipe 6 has an inner diameter of φ30 mm to φ40.
mm and a cylindrical tube with an internal volume of 500 cc or more. Further, the length of the lateral pipe 6 is required to be 300 mm to 400 mm or more when the refrigeration cycle 1 of the air conditioner for a bus vehicle (the flow rate of the refrigerant circulating in the refrigeration cycle 1 is 700 kg / h).

The vertical pipe 7 is a metal pipe made of aluminum or the like, and its distal end (lower end) is connected to a circular communication port 22 formed on the downstream side in the longitudinal direction of the horizontal pipe 6 by joining means such as welding. Are joined together. The vertical pipe 7 is a cylindrical pipe having an inner diameter of φ30 mm to φ40 mm. The vertical pipe 7 extends vertically upward from the communication port 22 in the figure, and is bent from the upper end of the vertical pipe 23 to the left in the figure to cross the air-cooled heat exchanger 2. And an inclined tube portion 24 extending obliquely upward. A liquid reservoir 25 for temporarily storing the liquid refrigerant is formed inside the vertical pipe 7.

A circular inlet 26 is formed substantially above the one end of the lateral pipe 6 in the extending direction. An inlet pipe 8 (corresponding to the inlet pipe of the present invention) for allowing the liquid refrigerant to flow into the horizontal pipe 6 is connected to the inlet 26 so as to project radially outward of the horizontal pipe 6. I have.

A circular outlet 27 is formed substantially below the other end of the lateral pipe 6 in the extending direction. The outlet 27 is connected to an outlet pipe 9 (corresponding to an outlet pipe of the present invention) for allowing the liquid refrigerant to flow out of the horizontal pipe 6 so as to project radially outward of the horizontal pipe 6. .
The inlet pipe 8 and the outlet pipe 9 are, for example, circular pipes having an inner diameter of 10 mm.

[Operation of First Embodiment] Next, the operation of the refrigeration cycle 1 of the air conditioner for a bus vehicle according to the present embodiment will be briefly described with reference to FIGS.

The gas refrigerant discharged from the compressor 11 flows through the refrigerant pipe 15 into the inlet tank. When passing through the plurality of condenser tubes of the condenser 3, the gas refrigerant flowing into the inlet tank exchanges heat with air flowing outside the condenser tubes and is condensed and liquefied, leaving a part of the gas refrigerant. Almost all liquid refrigerant flows into the intermediate tank.

Then, the gas-liquid two-phase refrigerant flowing into the intermediate tank flows through the inlet pipe 8 from the inlet 26 into the gas-liquid separator 21 of the horizontal pipe 6 of the receiver 4. As shown in FIG. 4, while the refrigerant flows in the gas-liquid separation unit 21 in a substantially horizontal direction, the gas refrigerant collects above the gas-liquid separation unit 21 by buoyancy.

On the downstream side of the gas-liquid separation section 21, the gas refrigerant completely collects on the upper side, and the liquid refrigerant collects on the lower side, thereby completing the gas-liquid separation. Then, only the liquid refrigerant in the gas-liquid separation section 21 flows into the outlet pipe 9 from the outlet 27.
Then, when passing through the plurality of supercooler tubes of the supercooler 5 through the outlet pipe 9, the air exchanges with the air flowing outside the supercooler tubes and is supercooled, and flows into the outlet tank. After that, it is sent to the expansion valve 13.

Here, when the refrigerant circulation amount required for the refrigeration cycle equipment such as the evaporator 14 and the air-cooled heat exchanger 2 is small, for example, when the cooling heat load is small, the refrigerant charge amount in the refrigeration cycle 1 changes. do not do. For this reason, as shown in FIG. 5, the liquid refrigerant having a difference between when the refrigerant circulation amount is large and when the refrigerant circulation amount is small is stored in the liquid reservoir 25 of the vertical pipe 7. Therefore, the internal volume of the liquid reservoir 25 is 500
cc to 1000 cc or more is required.

[Effects of the First Embodiment] As described above, in the present embodiment, the front and rear inlet and outlet pipes 8 and 9 are 3
Horizontal pipe 6 and vertical pipe 7 having an inner diameter of twice to four times or more
With the configuration of the receiver 4, a small diameter, small size, and light weight can be achieved while having the same gas-liquid separation performance and liquid storage performance as the conventional receiver. In addition, since the receiver 4 of the present embodiment is installed in a place on the front surface of the air-cooled heat exchanger 2 where heat radiation is not hindered,
The space for mounting the condensing unit 12 including the air-cooled heat exchanger 2 and the receiver 4 on a bus vehicle can be reduced.

By making the liquid reservoir 25 elongated, the inner diameter of the liquid reservoir 25 of the receiver 4 can be set to an extremely small φ with respect to φ80 mm to φ100 mm or more of the conventional receiver.
Since the diameter can be set to 30 mm to φ40 mm, the diameter is significantly reduced, so that the amount of refrigerant charged in the refrigeration cycle 1 can be reduced. In addition, since the gas-liquid separator 21 has an extremely small diameter of φ30 mm to φ40 mm with respect to φ80 mm to φ100 mm or more of the conventional receiver, sufficient gas-liquid separation performance can be obtained, so that a large flow rate for bus vehicles and the like can be obtained. (Max: about 700 kg / h) refrigeration cycle 1
In this case, the space for mounting the receiver 4 on the bus vehicle is reduced.

[Second Embodiment] FIGS. 6 to 8 show a second embodiment of the present invention. FIGS. 6 and 7 show a condensing unit. FIG. 8 shows a refrigeration cycle receiver. FIG.

The air-cooled heat exchanger 2 of the present embodiment comprises a plurality of U-tube-shaped condenser tubes 19a provided between the inlet tank 16 and the intermediate tank 17, and the intermediate tank 17
And a plurality of supercooler tubes 19b provided between the air conditioner and the outlet tank 18. The plurality of supercooler tubes 19b are provided downstream of the plurality of condenser tubes 19a in the air flow direction.
An inlet pipe 16 a is connected to the inlet tank 16, and an outlet pipe 18 a is connected to the outlet tank 18.

The receiver 4 is formed in an L-shape by arranging the communication port 22 of the vertical pipe 7 at the end on the outlet 28 side of the horizontal pipe 6 installed in a substantially horizontal direction. Thereby, the shape is simplified as compared with the first embodiment. The inlet pipe 8 is connected so as to protrude axially outward from the axial center of one end of the lateral pipe 6. The outlet pipe 9 is connected so as to protrude downward from a substantially lower side of the other end of the lateral pipe 6, and is mostly arranged in the horizontal direction. The vertical pipe portion 23 of the vertical pipe 7 extends upward from the end of the horizontal pipe 6 on the outlet 28 side. The inclined tube portion 24 is bent leftward in the figure from the upper end of the vertical tube portion 23 and extends obliquely upward.

[Third Embodiment] FIGS. 9 to 11 show a third embodiment of the present invention. FIG. 9 is a diagram showing a reversible receiver of a refrigeration cycle, and FIGS. 10 and 11 are bus vehicles. It is a figure showing a refrigeration cycle of an air conditioner for use.

In the refrigeration cycle 1 of this embodiment, the flow direction of the refrigerant is changed between a cooling cycle (normal refrigeration cycle) and a heating cycle (heat pump cycle). Specifically, in the cooling cycle, the gas refrigerant discharged from the compressor 11 is supplied to the four-way valve 31 → the outdoor heat exchanger 32 → the check valve 33 → the reversible receiver 10 → the cooling expansion valve 34 → the indoor heat exchanger 35 → The refrigerant circuit returns to the compressor 11 through the four-way valve 31.

The heating cycle is controlled by the compressor 11
The four-way valve 31 → the indoor heat exchanger 35 → the check valve 36 → the reversible receiver 10 → the heating expansion valve 3
7 → an outdoor heat exchanger 32 → a refrigerant circuit which returns to the compressor 11 via the four-way valve 31. The four-way valve 31 and the check valves 33 and 36 constitute a refrigerant circuit switching means for switching the flow direction of the refrigerant between the cooling operation and the heating operation.

The reversible receiver 10 has a substantially T-shape so that the vertical pipe 7 is directed substantially upward from above a substantially central portion of the horizontal pipe 6 installed in a substantially horizontal direction. Has been extended. And the inner diameter of the horizontal pipe 6 is φ30.
It is a cylindrical tube having a diameter of up to φ40 mm and an internal volume of 500 cc to 1000 cc or more. In addition, the inside of the lateral pipe 6 has 30
Cooling gas-liquid separator 21a having a dimension A of 0 mm to 400 mm or more, and a dimension B of 300 mm to 400 mm or more
Is formed. The lateral pipe 6 has a relation of A <B.

A circular entrance 41 is formed substantially below the one end of the lateral pipe 6 in the extension direction.
In addition, substantially below the other end in the extension direction of the lateral pipe 6,
A circular doorway 42 is formed. The refrigerant pipe 43 is connected to the entrance 41 so as to protrude radially outward of the horizontal pipe 6. In addition, in doorway 42,
The refrigerant pipe 44 is connected so as to protrude radially outward of the horizontal pipe 6. The refrigerant pipes 43 and 44 are, for example, circular pipes having an inner diameter of 10 mm.

During the cooling operation, as shown in FIGS. 9 and 10, gas-liquid flows from the outdoor heat exchanger 32 functioning as a refrigerant condenser through the check valve 33 and the refrigerant pipe 43 to the lateral pipe 6 from the inlet / outlet 41. Two-phase refrigerant flows in. Then, when the refrigerant flows in the cooling gas-liquid separation section 21a in a substantially horizontal direction, the gas refrigerant gathers on the upper side and performs gas-liquid separation. Furthermore, when the refrigerant circulation amount circulating in the refrigeration cycle 1 is small, the liquid refrigerant temporarily accumulates in the liquid reservoir 25.

In the heating operation, as shown in FIG. 11, when the refrigerant flowing from the indoor heat exchanger 35 serving as a refrigerant condenser flows in the heating gas-liquid separator 21b in a substantially horizontal direction, the gas The refrigerant collects on the upper side and separates into gas and liquid.
Furthermore, when the refrigerant circulation amount circulating in the refrigeration cycle 1 is small, the liquid refrigerant temporarily accumulates in the liquid reservoir 25. Therefore, the reversible receiver 10 of the present embodiment performs gas-liquid separation by buoyancy in both the cooling operation and the heating operation, performs a liquid storage function, and can achieve downsizing and refrigerant saving.

Fourth Embodiment FIGS. 12 to 14 show a fourth embodiment of the present invention and show a reversible receiver of a refrigeration cycle.

In the present embodiment, the partitioning member 45 is inserted into the horizontal pipe 6 of the L-shaped reversible receiver 10 so that one side of the horizontal pipe 6 is connected to the gas-liquid separating section 21 for cooling.
a and the other side is used as a heating gas-liquid separator 21b. In addition, two entrances 46 and 47 are formed substantially below one end of the lateral pipe 6. The refrigerant pipes 48, 4 are connected to the two entrances 46, 47, respectively.
9 are connected so as to protrude radially outward of the lateral pipe 6.

In the present embodiment, the pipe diameter φd4 of the horizontal pipe 6
Is 1.4 times the pipe diameter φd3 of the lateral pipe 6 of the third embodiment, so that the flow passage areas are equalized. Further, by making the T-shape of the third embodiment an L-shape, it is possible to make the flow passage area equal while reducing the width dimension B.

[Other Embodiments] In this embodiment, an example is shown in which the present invention is applied to a refrigeration cycle 1 of an air conditioner for a bus vehicle. However, the present invention is applied to a passenger car, a railcar, an aircraft, a ship, The present invention may be applied to a refrigeration cycle receiver of an air conditioner for air-conditioning a house, a factory, or the like.

In this embodiment, the condensing unit 12 includes the condenser 3, the receiver 4, and the supercooler 5
However, the condensing unit 12 may be constituted by the capacitor 3 and the receiver 4. In the present embodiment, an example is shown in which the air-cooled heat exchanger 2 in which the condenser 3 and the supercooler 5 are integrated is mounted on a bus vehicle. However, the condenser 3 and the supercooler 5 are mounted on the bus vehicle as separate components. Is also good.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing a receiver of a refrigeration cycle (first embodiment).

FIG. 2 is a configuration diagram illustrating a refrigeration cycle of the air conditioner for a bus vehicle (first embodiment).

FIG. 3 is a perspective view showing a condensing unit (first embodiment).

FIG. 4 is an explanatory diagram showing an operation of the receiver (first embodiment).

FIG. 5 is an explanatory diagram showing an operation of the receiver (first embodiment).

FIG. 6 is a front view showing a condensing unit (second embodiment).

FIG. 7 is a side view showing a condensing unit (second embodiment).

FIG. 8 is a schematic diagram showing a receiver of a refrigeration cycle (second embodiment).

FIG. 9 is a schematic diagram showing a reversible receiver of a refrigeration cycle (third embodiment).

FIG. 10 is a configuration diagram showing a refrigeration cycle of the air conditioner for a bus vehicle (third embodiment).

FIG. 11 is a configuration diagram illustrating a refrigeration cycle of the air conditioner for a bus vehicle (third embodiment).

FIG. 12 is a plan view showing a reversible receiver of a refrigeration cycle (third embodiment).

FIG. 13 is a schematic diagram showing a reversible receiver of a refrigeration cycle (third embodiment).

FIG. 14 is a side view showing a reversible receiver of a refrigeration cycle (third embodiment).

FIG. 15 is a configuration diagram showing a refrigeration cycle (prior art).

FIG. 16 is a perspective view showing a condensing unit (prior art).

FIG. 17 is a cross-sectional view showing a receiver of a refrigeration cycle (prior art).

FIG. 18 is a configuration diagram showing a refrigeration cycle (prior art).

FIG. 19 is a front view showing a reversible receiver of a refrigeration cycle (prior art).

FIG. 20 is a plan view showing a reversible receiver of a refrigeration cycle (prior art).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigeration cycle 2 Air-cooled heat exchanger 3 Condenser 4 Receiver 5 Supercooler 6 Horizontal pipe 7 Vertical pipe 8 Inlet pipe (inlet pipe) 9 Outlet pipe (outlet pipe) 10 Reversible receiver 12 Condensing unit 21 Gas-liquid separation part 22 Communication port 23 Vertical pipe part 24 Inclined pipe part 25 Liquid reservoir part 26 Inlet 27 Outlet 21a Gas-liquid separation part for cooling (first gas-liquid separation part) 21b Gas-liquid separation part for heating (second gas-liquid separation part) 45 Partition Material (partition plate)

Claims (6)

[Claims] (A) a horizontal pipe extending in a substantially horizontal direction perpendicular to the vertical direction and forming a gas-liquid separation part therein; and (b) extending from a substantially upper side of the horizontal pipe. A refrigeration cycle receiver having therein a vertical pipe forming a liquid reservoir communicating with the gas-liquid separator. 2. The refrigeration cycle receiver according to claim 1, wherein an outlet pipe through which the liquid refrigerant flows out from the horizontal pipe is provided substantially below one end of the horizontal pipe in an extending direction. A refrigeration cycle receiver, which is connected so as to protrude radially outward of the horizontal pipe. 3. The refrigeration cycle receiver according to claim 1, wherein the vertical pipe is connected between one end of the horizontal pipe in a direction in which the horizontal pipe extends and a substantially central part thereof. A receiver for a refrigeration cycle. 4. The receiver for a refrigeration cycle according to claim 1, wherein an inlet pipe for allowing a refrigerant to flow into the horizontal pipe is provided substantially below one end of the horizontal pipe in an extending direction. It is connected so as to protrude radially outward of the direction pipe,
An outlet pipe for allowing the liquid refrigerant to flow out of the horizontal pipe is connected so as to protrude radially outward of the horizontal pipe, and the inside of the horizontal pipe includes the inlet pipe and the liquid. A refrigeration cycle receiver, wherein a partition plate is provided for partitioning a first gas-liquid separation unit communicating with a reservoir and a second gas-liquid separation unit communicating with the liquid reservoir and the outlet pipe. 5. The refrigeration cycle receiver according to claim 1, wherein the lateral pipe has a circular pipe shape, and has an inner diameter that is three times or more the inner diameter of the inlet pipe and the outlet pipe. The vertical pipe has a circular pipe shape, has an inner diameter equal to or greater than the inner diameter of the horizontal pipe, and has a length equal to or greater than the length in the extension direction of the horizontal pipe. Refrigeration cycle receiver. 6. The refrigeration cycle receiver according to claim 1, wherein the horizontal pipe and the vertical pipe are provided in an air passage through which air passing through a heat exchanger of the refrigeration cycle flows. A receiver for a refrigeration cycle, which is installed in a refrigerator.