JP2003336936A - Condenser and refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a condenser having an excellent condensing efficiency and hard to be damaged. <P>SOLUTION: A distribution box 3 having a V-cross section is disposed in a shell 1 having refrigerant inlets 2 provided at the longitudinal both ends thereof. An impact plate 31 and a demister 35 are installed in the distribution box 3. Refrigerant gas led from the inlets 2 is decelerated by the impact plate 31 and directionally changed to be distributed to the longitudinal inner side of the distribution box 3. The refrigerant gas pressurized to a specified pressure in the distribution box 3 is passed through the demister 35 to filtrate refrigerating machine oil, and then uniformly flows out from the communication port 4 of the distribution box 3 to the other inner portion of the shell 1 in longitudinal direction. Since the refrigerant gas uniformly comes into contact with a heat transfer tube 6 in the shell 1 without deviating in longitudinal direction, the condensing efficiency of the refrigerant gas can be increased. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a condenser and a refrigeration system.

[0002]

2. Description of the Related Art Conventionally, as a condenser of a refrigerating apparatus, FIG.
There is one as shown in the sectional view of. The condenser has a flow dividing plate 10 arranged in a cylindrical shell 101 having an inlet 102 for a refrigerant gas, the outlet plate 102 being opposed to the inlet 102.
4, a plurality of heat transfer tubes 106 through which cooling water flows (only one is shown), and a tube support 107 that supports the heat transfer tubes.
With. High-temperature and high-pressure refrigerant gas compressed by a compressor (not shown) enters the shell 101 through the inlet 102 as indicated by arrow A. Then, the refrigerant gas,
The flow direction is changed by the flow dividing plate 104, the flow is divided, and mainly flows toward both sides in the longitudinal direction of the shell 101 as indicated by an arrow B. The split refrigerant gas flows into the heat transfer tube 10 extending in the longitudinal direction of the shell 101.
6, heat exchanges with the cooling water flowing in the heat transfer tube 106, and condenses into a liquid refrigerant. This liquid refrigerant is discharged from the outlet of the condenser toward the expansion mechanism.

The flow dividing plate 104 is formed of a perforated punching plate. The size of the holes in the punching plate is adjusted so that the refrigerant gas divided by the flow dividing plate 104 reaches both ends in the longitudinal direction of the shell 101. The dimensions are adjusted. As a result, the refrigerant gas and the heat transfer tube 10
The contact area with 6 is increased, the heat exchange efficiency between the refrigerant gas and the cooling water is improved, and the condensation efficiency of the refrigerant gas by the condenser is improved.

[0004]

However, in the conventional condenser described above, since the refrigerant gas is diverted by the diverter plate 104, there is a problem that the diverted refrigerant gas is biased in the flowing direction. For example, the shell 10
The flow dividing plate 1 so that the refrigerant gas reaches both ends in the longitudinal direction of the inside 1.
When 04 is adjusted, the refrigerant gas flow rate at the center in the longitudinal direction inside the shell 101 is reduced. On the other hand, the flow dividing plate 104 is arranged to increase the flow rate of the refrigerant gas in the center of the shell 101 in the longitudinal direction.
Adjustment, the refrigerant gas supplied to both ends of the shell 101 in the longitudinal direction decreases.

Further, the shell 10 is introduced from the inlet 102.
When the flow rate of the refrigerant gas flowing into the inside of the shell 101 changes, there is a problem that the supply ratio of the divided refrigerant gas to the longitudinal direction of the shell 101 changes.

Due to such deviation or change in the flow direction of the refrigerant gas, there is a problem that the heat exchange efficiency is lowered and the condensation efficiency of the refrigerant gas by the condenser is lowered.

In order to reach a sufficient amount of the refrigerant gas at both ends of the shell 101 in the longitudinal direction, the shell 101 is required.
It is necessary to increase the flow velocity of the refrigerant gas introduced inside. Then, the force that acts on the heat transfer tube 106 from the refrigerant gas increases, and excessive vibration may occur in the heat transfer tube 106. Due to this vibration, the heat transfer tube 10 is rubbed between the heat transfer tube 106 and the tube support 107 due to friction or stress concentration.
6 may be damaged and the condenser may be damaged.

[0008] Therefore, an object of the present invention is to provide a condenser which has good condensation efficiency and is hard to fail.

[0009]

In order to achieve the above object, the condenser according to the invention of claim 1 extends in the longitudinal direction of the shell in a shell provided with an inlet for the first heat medium. At the same time, a heat transfer tube into which the second heat medium is guided, and a first heat medium that extends in the longitudinal direction of the shell and is disposed above the heat transfer tube and that is introduced into the shell from the introduction port It is characterized by including a distribution box that distributes in a direction, and a rectifying member that is arranged in the distribution box and rectifies the first heat medium that flows from the distribution box to another portion in the shell.

According to the condenser of the first aspect, the first heat medium introduced into the shell from the introduction port is distributed in the longitudinal direction by the distribution box arranged above the heat transfer tube. . Further, the first heat medium is rectified by the rectifying member arranged in the distribution box and flows from the distribution box to another portion in the shell. by this,
Regardless of the inflow amount of the first heat medium from the introduction port into the shell or the change in the inflow amount, the flow rate of the first heat medium from the distribution box to other portions in the shell is equal to that of the distribution box. It becomes substantially uniform in the longitudinal direction. Therefore, the contact amount of the first heat medium with the heat transfer tube becomes substantially uniform in the longitudinal direction of the heat transfer tube. As a result, the first
Since the heat medium and the second heat medium are uniformly heat-exchanged in the shell without being biased, the efficiency of this heat exchange is improved, and the condensation efficiency of the first heat medium by this condenser is improved.

Further, in the condenser, the first heat medium flows uniformly from the distribution box to other parts in the shell regardless of the flow rate of the first heat medium introduced into the shell from the inlet. The heat medium does not need to flow into the shell at high speed as in the conventional case in order to reach the end of the shell. Therefore, it is possible to reliably avoid the disadvantage that the heat transfer tube vibrates due to the heat medium introduced into the shell at a high speed and the heat transfer tube is damaged due to the vibration as in the conventional case.

According to a second aspect of the present invention, there is provided the condenser according to the first aspect, wherein the rectifying member is a demister.

According to the second aspect of the present invention, the demister acts as a resistance of the first heat medium, so that the distribution box having the demister disposed above the first heat medium is guided by the first heat medium. The pressure rises. When the pressure of the first heat medium exceeds the resistance of the demister, the first heat medium passes through the demister and flows out of the distribution box. That is, since the first heat medium is once pressurized in the distribution box by the demister and then flows out, the amount of outflow from the distribution box becomes substantially uniform in the longitudinal direction of the distribution box. As a result, the amount of contact between the heat transfer tube and the first heat medium becomes substantially uniform in the longitudinal direction of the heat transfer tube, so that the heat exchange efficiency between the first heat medium and the second heat medium is improved. , The condensation efficiency of this condenser is improved.

The demister effectively removes, for example, refrigerating machine oil that has flowed into the shell together with the first heat medium.

A condenser according to a third aspect of the present invention is the condenser according to the first or second aspect, wherein the distribution box is provided with:
It is characterized by comprising a collision plate against which the first heat medium guided from the inlet of the shell collides.

According to the condenser of claim 3, the first heat medium introduced into the shell from the inlet is collided with the impingement plate to change its flow direction, and is introduced into the distribution box. Get burned. Therefore, since the first heat medium does not directly collide with the distribution box, the force acting on the distribution box is significantly reduced, damage to the distribution box is prevented, and the first heat medium is distributed. It can be efficiently guided into the box. As a result, the durability and condensation efficiency of this condenser are improved.

A condenser according to a fourth aspect of the present invention is the condenser according to any one of the first to third aspects, characterized in that a drain pipe communicating with the outside of the shell is provided in the distribution box. I am trying.

According to the condenser of the fourth aspect, the first heat medium condensed in the distribution box, or the refrigerating machine oil, for example, flowing in together with the first heat medium and accumulated in the distribution box,
It is discharged to the outside of the condenser by the drain pipe. As a result, the condensation efficiency of the first heat medium of this condenser is improved.

A condenser according to a fifth aspect of the present invention is the condenser according to the fourth aspect, wherein the distribution box has a V-shaped cross section, and the rectifying member is arranged in an upper portion of the distribution box. The drain pipe is arranged in the lower part of the distribution box.

According to the condenser of claim 5, for example, refrigerating machine oil or the like introduced into the shell together with the first heat medium is effectively collected by the rectifying member arranged in the upper portion of the distribution box. It This collected refrigerating machine oil,
The first heat medium condensed in the distribution box is effectively collected in the lower part of the distribution box having the V-shaped cross section. The refrigerating machine oil and the first heat medium are
The drain pipe arranged in the lower part of the distribution box allows the exhaust gas to be efficiently discharged to the outside of the condenser.

According to a sixth aspect of the present invention, there is provided the condenser according to the fifth aspect, wherein the inlets for the first heat medium are arranged near both ends in the longitudinal direction of the shell, and the length of the distribution box is long. Collision plates with which the first heat medium collides are arranged near both ends in the direction, and the first heat medium is distributed from the distribution box to the other inside of the shell in the upper part of the distribution box and inside the collision plate in the longitudinal direction. It is characterized in that it is provided with an outlet for letting it flow out to a part.

According to the condenser of the sixth aspect, the first heat medium flows in from the inlets arranged near both ends in the longitudinal direction of the shell, collides with the collision plate, and the flow velocity is reduced, From the outlet provided in the upper part of the distribution box and inward of the collision plate in the longitudinal direction, it flows out to other parts in the shell. Therefore, the outflow amount of the first heat medium from the distribution box becomes uniform in the longitudinal direction of the shell, and the first heat medium efficiently flows inside the shell.

A refrigerating apparatus according to a seventh aspect comprises the condenser according to any one of the first to sixth aspects.

According to the refrigerating apparatus of the seventh aspect, since the condenser having good condensing efficiency and good durability is provided, the refrigerating apparatus having high refrigerating efficiency and high reliability can be obtained.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 (a) is a partial sectional view in the longitudinal direction showing a condenser according to an embodiment of the present invention, and FIG. 1 (b) is a lateral sectional view taken along the line CC of FIG. 1 (a). Is. This condenser 10 is provided with a cylindrical shell 1, and is provided with an inlet port 2 for guiding the R134a refrigerant as a first heat medium inwardly at both ends and an upper portion of the shell 1 in the longitudinal direction. Figure 1 (a),
In (b), only the vicinity of one end of the shell 1 is shown. A distribution box 3 having a V-shaped cross section is provided inside and above the shell 1. The distribution box 3 includes two side plates 3a, 3a extending in the longitudinal direction of the shell 1 and having their lower end edges fixed to each other, and the side plates 3a, 3a.
End plates 3b fixed to both ends of the shell 1 and fixed to the inner surface of the shell 1.

The longitudinal end portions of the distribution box 3 are located in the vicinity of the refrigerant gas inlet 2 of the shell 1, and the upper edges of the side plates 3a, 3a extend over a predetermined length of the shell 1. It is fixed to the inner surface. On the other hand, in portions other than both longitudinal ends of the distribution box 3, the upper edges of the side plates 3a, 3a form a predetermined distance from the inner side surface of the shell 1 so that the inside and the outside of the distribution box 3 communicate with each other. The communication port 4 is formed. The communication port 4 functions as an outflow port for allowing the refrigerant gas to flow out from the distribution box 3 to another portion in the shell 1.

Further, inside the distribution box 3, collision plates 31 against which the refrigerant gas introduced from the introduction port 2 collides are provided at both ends in the longitudinal direction. On the other hand, a demister (described later) as a rectifying member is arranged near the communication port 4 at a portion other than both ends in the longitudinal direction of the distribution box 3. A drain pipe 32 extending in the longitudinal direction of the distribution box 3 is arranged inside the distribution box 3 and near the lower end of the V-shaped cross section. The drain pipe 32 is connected to the shell 1 via the connecting pipe 33.
Communicates with the outside.

Inside the shell 1 and outside the distribution box 3, a plurality of heat transfer tubes 6 (only one is shown) extending in the longitudinal direction of the shell 1 are arranged supported by a tube support 7. There is. Water as a second heat medium is caused to flow inside the heat transfer tube 6 so that the water and the refrigerant guided from the inlet 2 to the inside of the shell 1 exchange heat.

FIG. 2A is a partial plan view of the distribution box 3, and FIG. 2B is a partial sectional view of the distribution box 3 in the vertical direction. 2A and 2B show only one end side of the distribution box 3. A demister 35 is arranged near the upper edges of the side plates 3a, 3a of the distribution box and near the communication port 4. The demister 35 is made of fibrous metal and is supported by a support member 36. The collision plates 31 are arranged outside the longitudinal ends of the demister 35 and are separated by partition walls 34.

FIG. 3 is a diagram showing a refrigerating apparatus according to an embodiment of the present invention. This refrigeration system is configured by connecting the condenser 10, the expansion mechanism 11, the evaporator 12, and the compressor 13 in this order.

In the condenser 10, the inlet 2 of the shell 1 is connected to the outlet of the compressor 13, and
The outlet (not shown) of the shell 1 is connected to the expansion mechanism 11. The connection pipe 33, one end of which is connected to the drain pipe 32, has the other end connected to the suction side of the compressor 13. Further, the condenser 10 is connected to a cooling tower (not shown), sends out the high temperature water passing through the heat transfer tube 6 to the cooling tower, and guides the low temperature water cooled by the cooling tower to the heat transfer tube 6. ing.

The evaporator 12 is connected to an air conditioner (not shown), introduces high temperature water introduced from the air conditioner into the inside, and exchanges heat between the high temperature water and the refrigerant gas to obtain low temperature water. The low temperature water is sent to the air conditioner.

When the refrigerating apparatus having the above structure is operated, the high temperature and high pressure refrigerant gas compressed by the compressor 13 is transferred to the condenser 1
Lead to zero.

In this condenser 10, the high-temperature and high-pressure refrigerant gas is introduced into the shell 1 from the inlet 2 as shown by the arrow E in FIGS. 1 (a) and 2 (b). First, the flow direction of the refrigerant gas guided into the shell 1 is changed by the collision plate 31, and the refrigerant gas is guided into the distribution box 3 and flows in the distribution box 3 toward the center in the longitudinal direction (FIG. 2).
(B) Arrow F). At this time, also at the inlet provided at the other end of the shell 1, the refrigerant gas from the compressor 13 is introduced into the shell 1, the flow direction is changed by the collision plate, and the distribution box 3 is introduced from the other end side. It is guided toward the center in the longitudinal direction. At this time, since the demister 35 arranged above the distribution box 3 acts as a resistance of the refrigerant gas, the refrigerant gas pressure in the distribution box 3 rises. When this refrigerant gas pressure exceeds a predetermined pressure, the refrigerant gas passes through the demister 35 and flows out of the distribution box 3 as shown by an arrow G. In the demister 35, the flow velocity of the refrigerant gas passing therethrough becomes substantially the same at almost all positions in the longitudinal direction of the demister 35, and the rectifying effect of the refrigerant gas is exhibited. As a result, from the communication port 4 of the distribution box 3 to the outside of the distribution box 3 and the inside of the shell 1,
The refrigerant gas flows out substantially uniformly in the longitudinal direction of the shell 1. As a result, the refrigerant gas contacts the heat transfer tubes 6 arranged inside the shell and outside the distribution box 3 substantially uniformly in the longitudinal direction, and the refrigerant gas and the cooling water in the heat transfer tubes 6 are efficiently made. Exchange heat. Then, the refrigerant gas is condensed with good efficiency to become a low-temperature and high-pressure liquid refrigerant, and this liquid refrigerant is discharged from the outlet (not shown) of the shell 1 toward the expansion mechanism 11.

The refrigerant gas introduced into the distribution box 3 of the condenser 10 is obtained by filtering the refrigerating machine oil contained in the refrigerant gas by the demister 35 to obtain the distribution box 3
Collects at the bottom of. The refrigerating machine oil accumulated in the lower portion of the distribution box 3 is sucked into the drain pipe 32 due to the pressure difference between the condenser 10 and the suction side of the compressor 13, and the connecting pipe 3
After that, it is returned to the suction side of the compressor 13.

The liquid refrigerant condensed in the condenser 10 and having a low temperature and a high pressure is decompressed by the expansion mechanism 11 to have a low temperature and a low pressure, and is sent to the evaporator 12. The liquid refrigerant introduced to the evaporator 12 exchanges heat with high temperature water introduced from an air conditioner (not shown) to evaporate, and is returned to the compressor 13. The high-temperature water guided to the evaporator 12 exchanges heat with the liquid refrigerant to lower its temperature to become low-temperature water, which is sent to an air conditioner (not shown).

According to the condenser 10 of this embodiment, since the refrigerant gas is rectified by the demister 35, the flow rate of the refrigerant gas in the shell 1 becomes a predetermined uniform flow rate in the longitudinal direction of the distribution box 3. Become. as a result,
The refrigerant gas and the heat transfer tube 6 can uniformly contact each other in the longitudinal direction of the shell 1, and the heat exchange efficiency between the refrigerant gas and the water in the heat transfer tube 6 can be improved. As a result, the condenser 10 can improve the condensing efficiency of the refrigerant gas, which in turn can improve the refrigerating efficiency of the refrigerating apparatus.

Since the flow rate of the refrigerant gas in the shell 1 is made substantially uniform in the longitudinal direction by the rectifying action of the demister 35, the refrigerant gas is made to reach the end portion in the shell as in the conventional case. There is no need to increase the gas inflow rate. Therefore, the force acting on each part in the shell 1 from the refrigerant gas is reduced, so that the damage of the condenser or the like due to the increase in the force acting on the heat transfer tube from the high-speed refrigerant gas as in the prior art is effectively prevented. It can be avoided. As a result, the condenser 10 having good durability can be obtained, and the reliability of the refrigeration system can be improved.

Further, the demister 35 can efficiently collect refrigerating machine oil and the like contained in the refrigerant gas guided to the condenser 10 and return it to the compressor 13. As a result, uneven distribution of refrigeration oil in the refrigeration system can be prevented,
The refrigeration efficiency of the refrigeration system can be improved.

In the above embodiment, the demister 35 arranged above the distribution box 3 may be another one such as a fin as long as it has a rectifying effect.

The cross section of the distribution box 3 may be a rectangle other than the V-shape. Also, the above distribution box 3
The end face plate 3b defining the above may be shared by the end face of the shell 1. Further, although the introduction ports 2 for the refrigerant gas to the shell 1 are provided at both ends in the longitudinal direction of the shell 1, they may be provided at any position of the shell 1 and any number thereof may be provided.

The connecting pipe 33 having one end connected to the drain pipe 32 may have the other end connected to a portion other than the suction port of the compressor.

The collision plate 31 arranged in the distribution box 3 may be omitted.

The first heat medium may be a heat medium other than the R134a refrigerant, and the second heat medium may be a heat medium other than water.

In the above-described embodiment, the water cooled by the evaporator 12 is sent to the air conditioner (not shown), but the evaporator may cool other objects to be cooled than water, and the cooled object is cooled. The object to be cooled may be sent to a device other than the air conditioner.

Further, the condenser 10 can be used in various refrigerating devices such as a turbo refrigerator and an absorption refrigerator.

[0048]

As is apparent from the above, according to the condenser of the invention of claim 1, the condenser extends in the longitudinal direction of the shell in the shell provided with the inlet for the first heat medium, and
A heat transfer tube in which the second heat medium is guided, and a heat transfer tube extending in the longitudinal direction of the shell and arranged above the heat transfer tube,
A distribution box that distributes the first heat medium introduced into the shell from the introduction port in the longitudinal direction, and a first heat medium that is arranged in the distribution box and flows from this distribution box to another portion in the shell. Since the flow control member for controlling the first heat medium flows into the shell,
The flow rate of the first heat transfer medium from the distribution box to other portions in the shell can be made substantially uniform in the longitudinal direction of the distribution box. As a result, the first heat medium and the second heat medium can be uniformly and uniformly heat-exchanged in the shell, so that the condenser having good condensation efficiency can be obtained.

According to the condenser of the second aspect of the present invention, since the rectifying member is a demister, the first heat medium can be once pressurized in the distribution box and then discharged.
Thereby, the outflow amount of the first heat medium from the distribution box can be effectively made substantially uniform in the longitudinal direction. Further, it is possible to effectively remove, for example, refrigerating machine oil that has flowed into the shell together with the first heat medium.

According to the condenser of the third aspect of the present invention, in the distribution box, the first guide introduced from the inlet of the shell is provided.
Since the collision plate against which the heat medium collides is provided, it is possible to effectively change the flow direction of the first heat medium guided into the shell from the introduction port and efficiently guide the heat medium into the distribution box.
Further, the force acting on the distribution box from the first heat medium can be effectively reduced.

According to the condenser of the invention of claim 4, since the drain pipe communicating with the outside of the shell is provided in the distribution box, the first heat medium condensed in the distribution box and the first heat medium are condensed. For example, refrigerating machine oil that flows in together with the medium and accumulates in the distribution box can be discharged to the outside of the condenser, and the condensation efficiency of the first heat medium of the condenser can be improved.

According to the condenser of the fifth aspect of the present invention, the distribution box has a V-shaped cross section, the rectifying member is arranged in an upper part of the distribution box, and the distribution box is arranged in a lower part of the distribution box. Since the drain pipe is arranged, the refrigerating machine oil and the like that have flowed in together with the first heat medium are effectively collected, and the first condensing in the distribution box is performed.
It can be effectively collected together with the heat medium, and the collected first heat medium and refrigerating machine oil can be efficiently discharged to the outside of the condenser through the drain pipe.

According to the condenser of the sixth aspect of the invention, the inlets for the first heat medium are arranged near both ends in the longitudinal direction of the shell, and the first box is provided near both ends in the longitudinal direction of the distribution box. Colliding plates against which the heat medium collides are arranged,
Since an outlet for letting the first heat medium flow out from the distribution box to another portion in the shell is provided in the upper part of the distribution box and inside the collision plate in the longitudinal direction, the first heat medium is evenly distributed in the longitudinal direction from the distribution box. The first heat medium can be caused to flow out, and the first heat medium thus flowed out can be efficiently caused to flow inside the shell.

According to the refrigerating apparatus of the seventh aspect of the present invention, since the condenser having good condensing efficiency and good durability is provided, a refrigerating apparatus having high refrigerating efficiency and high reliability can be obtained.

[Brief description of drawings]

FIG. 1 (a) is a partial cross-sectional view showing a condenser of an embodiment of the present invention, and FIG. 1 (b) is a C of FIG. 1 (a).
It is a cross-sectional view taken along the line C.

2 (a) is a partial plan view of the distribution box 3, and FIG. 2 (b) is a partial cross-sectional view of the distribution box 3 in the longitudinal direction.

FIG. 3 is a diagram showing a refrigerating apparatus according to an embodiment of the present invention.

FIG. 4 is a sectional view showing a conventional condenser.

[Explanation of symbols]

1 shell 2 entrance 3 distribution boxes 4 communication ports 6 heat transfer tubes 10 condenser 11 Expansion mechanism 12 Evaporator 13 compressor 31 collision plate 32 drain tube 33 Connection tube 35 demister

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 3L065 DA04                 3L103 AA35 BB33 CC30 DD08 DD69

Claims (7)

[Claims] 1. A transmission which extends in the longitudinal direction of the shell (1) in the shell (1) provided with an inlet (2) for the first heat medium and guides the second heat medium inward. The heat pipe (6) and the first heat which extends in the longitudinal direction of the shell (1) and is arranged above the heat transfer pipe (6) and is introduced into the shell (1) from the inlet (2). A distribution box (3) for distributing the medium in the longitudinal direction, and a first heat medium which is arranged in the distribution box (3) and flows from the distribution box (3) to another portion in the shell (1). A condenser comprising: a flow regulating member (35). 2. The condenser (10) according to claim 1, wherein the rectifying member (35) is a demister. 3. The condenser (1) according to claim 1 or 2.
0), the collision plate (3) with which the first heat medium guided from the inlet (2) of the shell (1) collides with the distribution box (3).
A condenser comprising: 1). 4. The condenser (10) according to any one of claims 1 to 3, wherein a drain pipe (32) communicating with the outside of the shell (1) is provided in the distribution box (3). A condenser provided with. 5. The condenser (10) according to claim 4, wherein the distribution box (3) has a V-shaped cross section, and the rectifying member (3) is provided in an upper portion of the distribution box (3).
5) is arranged and the distribution box (3)
A condenser characterized in that the drain pipe (32) is arranged in a lower part of the inside. 6. The condenser (10) according to claim 5, wherein the inlets (2) for the first heat medium are arranged near both ends in the longitudinal direction of the shell (1), respectively. Collision plates (31) against which the first heat medium collides are arranged near both ends in the longitudinal direction of (1), respectively, and the collision plate (31) is located above the distribution box (3).
A condenser characterized in that it is provided with an outlet (4) on the inner side in the longitudinal direction for allowing the first heat medium to flow out from the distribution box (3) to another portion in the shell (1). 7. A refrigeration system comprising a condenser (10) according to any one of claims 1 to 6.