KR100858516B1 - Receiver drier - integrated condenser - Google Patents

Abstract

The present invention relates to a receiver integrated condenser, and an object thereof is to provide a receiver integrated condenser for bypassing and recondensing the refrigerant in the gas phase introduced into the receiver to a refrigerant inlet or header pipe. It comprises a first header pipe for collecting and distributing the refrigerant flowing from the compressor, a second header pipe for distributing the refrigerant supplied through the first header pipe to the receiver and the first header pipe, and the first and second header pipes. And a plurality of tubes connected between the tubes to form a refrigerant condensation unit and a subcooling unit, and heat dissipation fins interposed between the tubes, wherein the receiver is coupled to communicate with one side of the second header pipe. The gas collecting part of the upper part of the receiver and the refrigerant condenser are communicated by a bypass tube so as to recondense the gaseous phase refrigerant remaining in the receiver.

Receiver, bypass tube, condenser

Description

Integral condenser with receiver {RECEIVER DRIER-INTEGRATED CONDENSER}

1 is a cross-sectional view of a receiver integrated condenser according to the prior art.

2 is a view showing an embodiment of a condenser provided with a conventional bypass pipe.

Figure 3 is a cross-sectional view showing one embodiment of a receiver integrated condenser according to the present invention.

4 is a refrigerant flow diagram of FIG.

Figure 5 is a cross-sectional view showing another embodiment of the receiver integrated condenser according to the present invention.

6 is a refrigerant flow diagram of FIG.

(Explanation of symbols for the main parts of the drawing)

10,20: 1st, 2nd header pipe 30: tube

40: heat sink fin 50: baffle

60: receiver 70: connecting pipe

71: outlet pipe 80: refrigerant inlet

81: refrigerant inlet 90: bypass pipe

91: check valve

The present invention relates to a liquid receiver integrated condenser, and more particularly, the liquid phase and the gaseous refrigerant that coexist inside the liquid receiver are returned to the refrigerant inlet or header pipe to be recondensed to form a liquid phase. It relates to a receiver integrated condenser that can expect the improvement of the condensation efficiency by allowing only the refrigerant to pass through the supercooling zone.

In general, the condenser is to perform the function of changing the liquid phase of the appropriate temperature by introducing a refrigerant of the gas phase to cool. In particular, the multi-pass condenser is provided with a plurality of baffles in one or both headers so that the refrigerant flows through a plurality of flow passages so that the refrigerant is transferred from the gaseous refrigerant through the tubes and fins while the refrigerant flows inside the condenser in a zigzag form. The heat condenses the refrigerant into the liquid phase.

On the other hand, the receiver is located between the condenser and the expansion valve to temporarily store the liquefied refrigerant in the condenser to supply the required amount to the evaporator according to the cooling load, and to separate the gas phase refrigerant contained in the refrigerant derived from the condenser In order to perform the function, in recent years, the condenser integrated with the condenser integrated with the condenser and the receiver in order to utilize the space of the limited engine room of the automobile has been widely used.

1 is a view showing an embodiment of a conventional receiver integrated condenser.

As illustrated, the receiver integrated condenser has a first header pipe 1 and a second header pipe 2 spaced apart in parallel with the first header pipe 1, and both ends of the first and second header pipes ( 1) the tube (3) installed side by side in communication with (2), the heat dissipation fin (4) interposed between the tube (3), and the inside of the first and second header pipe (1) (2) A plurality of baffles (5) provided to form a refrigerant passage, a receiver (6) integrally communicating with the second header pipe (2), and a second header pipe (2) and a receiver (6). The connection pipe 7 formed in the condensation region to be connected and the outlet pipe 7a formed in the subcooling region, the refrigerant inlet 8 formed on one side of the first header pipe 1 and the first header pipe 1; It consists of the refrigerant | coolant outlet 8a formed in the supercooling area | region.

The condenser integrated condenser configured as described above has a refrigerant flow path that flows through the refrigerant inflow passage 8 installed in the middle portion of the first header pipe 1 through the refrigerant inflow passage while the refrigerant in the gas phase rises upward. The condensate is condensed along the refrigerant flow path, while the relatively liquid refrigerant flows downward and condenses along the predetermined refrigerant flow path.

The refrigerant condensed while passing through the refrigerant passages is stored in the receiver 6, where moisture and impurities are removed by a drying material and a filter. The liquid refrigerant stored in the receiver 6 flows through the outlet pipe 7a to be recondensed to form an overcooling region and flows to the expansion valve (not shown) through the refrigerant outlet 8a.

However, the liquid receiver integrated condenser as described above does not completely change into a liquid phase in the refrigerant flowing upward in the refrigerant inflow passage, and there is a refrigerant introduced into the receiver 6 through the inlet pipe 7 in a gaseous state. In addition, the refrigerant is mixed with the liquid refrigerant by the shaking and flows into the subcooling zone, thereby degrading the performance of the air conditioner.                         

Meanwhile, an embodiment of a condenser having a bypass tube is shown in the contents of US Pat. No. 5,752,566, which is outlined in FIG. 2 as follows. For convenience of description, the same reference numerals are used to describe the original text.

2 is a view showing an embodiment of a condenser provided with a conventional bypass tube.

As shown in the figure, a plurality of tubes are installed to be sealed between the inlet header 12 and the outlet header 14 to form a fluid passage between the headers 12 and 14, and each of the tubes There are a plurality of fins therebetween that assist in heat transfer.

In addition, a plurality of baffles 30 and a phase separator 28 are provided inside the inlet header 12 and the outlet header 14.

The phase separator 28 is formed of a non-uniform material made of a porous medium, that is, a solid material having a communication space, for which it is made of a metal such as aluminum powder or a squeezing material, a styrene (styrene) including a sponge or foam material or Examples include polymers, rock, or minerals.

Also, the supercooling zone 80 is disposed separately from the condenser 10, and the receiver 106 introduces the liquid refrigerant flowing out of the outlet lines 22 and the bypass lines 108 and 110 of the condenser. Is installed.

In addition, 82 represents an overheating region in the condenser, and 84 represents a gas phase condensation region in the condenser.

Looking at the refrigerant flow of the condenser 10 configured as described above, the refrigerant flowing into the refrigerant inlet 20 is condensed while flowing in the superheated area 82 in the direction of the arrow 86, and in the phase separator 28 of the outlet header. The gas liquid is separated and the liquid refrigerant flows into the receiver 106 through the outlet line 22, and the refrigerant in the gas phase flows into the vapor condensation region 84 and flows along the direction of the arrow 90.

The refrigerant flowing along the direction of arrow 90 is recondensed, and after the gas liquid is separated from the phase separator 28 installed above the inlet header 12, the liquid refrigerant flows into the receiver through the bypass pipe 108. The refrigerant in the gas phase is again moved in the direction of the arrow 92 to be condensed and introduced into the receiver 106 through the bypass pipe 110.

The refrigerant introduced into the receiver 106 flows to the subcooling region 80 according to the refrigerant flow.

However, the bypass pipes 108 and 110 applied to the condenser send liquid liquid refrigerant to the receiver 106 while passing through the refrigerant path of the condenser, so that the refrigerant in the gas phase enters the receiver 106. If it is introduced there is a problem that does not return it back to the condenser (10).

That is, there is a problem that the refrigerant in the gas phase flows into the subcooling region 80 due to the refrigerant flow, thereby reducing the condensation efficiency.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object thereof is to provide a receiver integrated condenser which bypasses a refrigerant in a gas phase introduced into a receiver to a refrigerant inlet or a header pipe to recondense it.

The present invention for solving the above object is a first header pipe for collecting and distributing the refrigerant flowing from the compressor, a second header pipe for distributing the refrigerant supplied through the first header pipe to the receiver and the first header pipe and And a plurality of tubes connected between the first and second header pipes to form a refrigerant condensation unit and a subcooling unit, and heat dissipation fins interposed between the tubes, so that the receiver communicates with one side of the second header pipe. The combined receiver condenser is configured to communicate the gas collecting portion of the upper portion of the receiver and the refrigerant condensation unit by a bypass tube to recondense the gaseous phase refrigerant remaining in the receiver.

In addition, a check valve is provided on the bypass pipe to restrict the flow of the liquid refrigerant inside the condenser to the receiver side.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a view showing an embodiment of a receiver integrated condenser of the present invention.

As shown in the receiver integrated condenser of the present invention, the first header pipe 10 and the second header pipe 20 are spaced apart at regular intervals, the first header pipe 10 and the second header pipe 20 The plurality of tubes 30 are installed side by side between the), and the heat radiation fins 40 are interposed between the adjacent tubes 30.

A plurality of baffles 50 are installed inside the first and second header pipes 10 and 20 to form a refrigerant flow path.

That is, the first header pipe 10 is divided into four space portions of the upper compartment 11, the middle compartment 12, the lower compartment 13, and the auxiliary compartment 14 by three baffles 50, respectively. The second header pipe 20 is divided into four space portions of the upper compartment 21, the intermediate compartment 22, the lower compartment 23, and the auxiliary compartment 24 by three baffles 50, respectively. .

The receiver 60 is integrally communicated with the second header pipe 20. At least one connection pipe 70 is coupled to the condensation region, and the outlet pipe 71 is coupled to the subcooling region.

That is, the connecting pipe 70 is in communication with the upper compartment 21 and the lower compartment 23, respectively, and the outlet pipe 71 is in communication with the auxiliary compartment 24.

The central compartment 12 of the first header pipe 20 is provided with a refrigerant inlet 80 connected to a compressor (not shown), and an expansion valve (not shown) in the auxiliary compartment 14 of the first header pipe 10. Is connected to the refrigerant outlet (81).

The upper end of the receiver 60 and the refrigerant inlet 80 of the first header pipe 10 are connected to the bypass pipe 90 to prevent the phase change into the liquid phase introduced into the receiver 60. The refrigerant is returned to the refrigerant inlet 80 to undergo a condensation process.

A check valve 91 is installed in the bypass pipe 90 to block the refrigerant flow from the refrigerant inlet 80 to the receiver 60, and to allow the refrigerant flow from the receiver 60 to the refrigerant inlet 80. It is made to

Meanwhile, both ends of the first and second header pipes 10 and 20 are sealed by end caps, and a pair of end plates protects the heat dissipation fins 40 disposed at the outermost sides, respectively.

4 is a flow chart of the refrigerant of FIG. 3. Referring to this, the refrigerant flow will be described below. The solid arrows in the drawing indicate the flow direction of the gaseous phase refrigerant, and the arrows of the silver line indicate the flow direction of the liquid phase refrigerant.

For convenience of explanation, the refrigerant flow paths will be described by expressing six refrigerant flow paths of P1 to P6.

The refrigerant in the gaseous phase introduced into the refrigerant inlet 80 flows from the middle compartment 12 of the first header pipe 10 to the intermediate compartment 22 of the second header pipe 20 along the refrigerant passage of P1.

In this process, the refrigerant in the gas phase exchanges with the outside air to remove the superheat and undergo a condensation process, and the gas-liquid is mixed. The refrigerant in the liquid phase falls downward due to its own weight. As the gas-liquids rise up, they undergo a process of separating.

The liquid refrigerant is recondensed while passing through the refrigerant passages of P4 and P5 to be introduced into the receiver 60 in a supercooled state. In contrast, the gaseous refrigerant is recondensed while flowing through the refrigerant passages of P2 and P3. Phase change into a liquid refrigerant is introduced into the receiver 6 through the connection pipe 70.

Since the refrigerant condensed in the condenser is introduced into the receiver 60, the ratio of the liquid phase is high, but the refrigerant in the gaseous phase is also mixed a little so that the gas is collected at the gas collecting part of the receiver 60.

The gas collecting portion of the receiver 60 will be formed on top of the nature of the gas.

The gaseous refrigerant collected at the gas collecting portion of the receiver 60 returns to the refrigerant inlet 80 through the bypass pipe 90 to undergo the condensation process again.

At this time, the refrigerant is made to allow only the refrigerant flow from the receiver 60 to the refrigerant inlet 80 by the check valve (91).

As described above, even when the refrigerant in the gas phase flows into the receiver 60, the refrigerant is returned to the refrigerant inlet 80 through the bypass pipe 90, so that the refrigerant introduced into the receiver 60 is not shown in the drawing. In the state in which water and impurities are removed by the filter, the refrigerant is recondensed while passing through the refrigerant passage of P6 to form a supercooled state, and the supercooled refrigerant flows to an expansion valve (not shown) through the refrigerant outlet 81.

5 and 6 are a cross-sectional view and a refrigerant flow diagram showing another embodiment of the receiver integrated condenser according to the present invention. The same reference numerals are used for the same components as those in the embodiment of FIG. 3, and overlapping contents are omitted to avoid complication of the description.

As shown in the present embodiment, the connection position of the bypass pipe 90 is communicated from the upper part of the receiver 60 to the upper compartment 11 of the first header pipe 10, which is the receiver 60. By returning the refrigerant of the gas phase introduced into the inside to return to the upper compartment (11), by condensing the refrigerant of the gas phase to improve the condensation efficiency to improve the performance of the air conditioner.

The receiver integrated condenser of the present invention as described in detail above to condense by returning the refrigerant of the gas phase introduced into the receiver to the refrigerant inlet or header pipe, the refrigerant passing through the supercooling zone passes only the pure liquid to improve the condensation efficiency It can be.

Claims (2)

A first header pipe 10 which collects and distributes the refrigerant introduced from the compressor; and A second header pipe 20 for distributing the refrigerant supplied through the first header pipe 10 to the receiver 60 and the first header pipe 10; A plurality of tubes 30 connected between the first and second header pipes 10 and 20 to form a refrigerant condensation unit and a subcooling unit; and In the receiver integrated condenser provided with a heat dissipation fin 40 interposed between the tube 30, the receiver 60 is coupled in communication with one side of the second header pipe (20), A fluid receiver configured to communicate the gas collecting portion of the upper part of the receiver 60 with the refrigerant condenser by a bypass pipe 90 so as to recondense the gas phase refrigerant remaining in the receiver 60. Integral condenser. 2. A receiver integrated condenser as set forth in claim 1, characterized in that a check valve (91) is provided on the bypass pipe (90) to restrict the flow of liquid refrigerant in the condenser back to the receiver (60).

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