JPH08313096A - Air conditioner - Google Patents

Abstract

(57) [Abstract] [Purpose] Improving the immediate heating performance of a heat pump type air conditioner when starting heating. [Composition] Compressor 1, condenser 2, expansion mechanism 6, evaporator 4
In the air conditioner in which the refrigerant circulation circuit is configured by sequentially connecting the above, the vortex tube 3 is provided between the compressor 1 and the condenser 4, and the refrigerant supply port 3a of the vortex tube 3 is provided in the compressor 1. Refrigerant discharge side refrigerant pipe 16
In addition, the high temperature side refrigerant outlet 3 of the vortex tube 3
b is connected to the refrigerant inlet side refrigerant pipe 13 of the condenser 2, and the low temperature side refrigerant outlet 3c of the vortex tube 3 is connected to the refrigerant inlet side refrigerant pipe 15 of the compressor 1, and the vortex tube is used. Between the refrigerant supply port 3a of No. 3 and the refrigerant discharge port of the compressor 1, an electromagnetic on-off valve 10 whose valve opening is controlled only when the heating is started is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner having improved immediate warming when the heating operation is started.

[0002]

2. Description of the Related Art As a refrigerating circuit of a generally known air conditioner, as shown in FIG. 3, for example, a compressor 1, a condenser 2, an expansion mechanism 6 and an evaporator 4 are sequentially connected and a four-way valve 5 is connected. In general, the refrigerant circulation circuit is configured via the heat exchanger. In this case, the heat quantity radiated in the indoor condenser 2 is the heat quantity absorbed in the outdoor evaporator 4 and the compressor 1
It depends on the amount of work.

[0003]

However, in the case of the same configuration, since the refrigerant supplied from the compressor 1 to the condenser 2 is not in a sufficiently high temperature and high pressure state immediately after the heating operation is started, this state is brought about. When you turn the indoor unit fan on, the cold wind blows out for a while.

For this reason, conventionally, the indoor unit fan is rotated only after a predetermined time has elapsed after the heating operation is started and the refrigerant becomes in a high temperature and high pressure state.

As a result, there is a problem that the immediate heating performance during heating is lacking.

The present invention has been made in order to solve the above problem, and only the high temperature side refrigerant component which is cold and heat separated through a vortex tube upstream of the condenser of the refrigeration circuit of the conventional air conditioner is separated. It is an object of the present invention to provide an air conditioner that improves immediate heating performance at the time of starting heating operation by allowing the air conditioner to flow into a condenser.

[0007]

In order to achieve the above object, the structure of the present invention is provided with the following problem solving means.

That is, in the air conditioner of the present invention, for example, as shown in FIG. 1, a compressor (1), a condenser (2), an expansion mechanism (6) and an evaporator (4) are sequentially connected. In an air conditioner comprising a refrigerant circulation circuit, a vortex tube (3) is provided between the compressor (1) and the condenser (4), and a refrigerant supply port (3a) of the vortex tube (3) is provided. The refrigerant discharge side refrigerant pipe (16) of the compressor (1) and the high temperature side refrigerant outlet (3b) of the vortex tube (3) are connected to the refrigerant inlet side refrigerant pipe (13) of the condenser (2). Further, the low temperature side refrigerant outlet (3c) of the vortex tube (3) is connected to the compressor (1).
Are connected to the refrigerant inlet side refrigerant pipes (15).

Further, the air conditioner of the present invention has the above-mentioned configuration, and is opened between the refrigerant supply port (3a) of the vortex tube (3) and the refrigerant discharge port of the compressor (1) only when heating is started. A valve-controlled electromagnetic on-off valve (10) is provided.

Further, the air conditioner of the present invention is
In the above configuration, the solenoid (10) upstream of the compressor (1) discharge side refrigerant pipe (6), the condenser (2) refrigerant inlet side refrigerant pipe (13), the evaporator (4) refrigerant A four-way valve (5) is provided between the outlet side refrigerant pipe (16) and the refrigerant inlet side refrigerant pipe (15) of the compressor (1).

[0011]

The air conditioner of the present invention has the following actions by the above means.

That is, in the air conditioner of the present invention,
As described above, in the air conditioner in which the compressor (1), the condenser (2), the expansion mechanism (6) and the evaporator (4) are sequentially connected to form a refrigerant circulation circuit, the compressor ( A vortex tube (3) is provided between the condenser (4) and the refrigerant supply port (3) of the vortex tube (3).
a) is a refrigerant discharge side refrigerant pipe (16) of the compressor (1)
In addition, the high temperature side refrigerant outlet (3b) of the vortex tube (3) is connected to the refrigerant inlet side refrigerant pipe (13) of the condenser (2), and the low temperature side refrigerant outlet (3c) of the vortex tube (3). ) Is connected to the refrigerant inlet side refrigerant pipe (15) of the compressor (1), respectively, and the refrigerant from the compressor (1) that has not reached the high temperature and high pressure state at the time of heating start, First vortex tube (3)
And is separated into cold and heat as much as possible. Then, as a result of only the high temperature side component of the cold-heat separated refrigerant being made to flow into the condenser (2), the refrigerant flowing into the condenser 2 becomes as hot as possible.

Therefore, even if the fan on the indoor unit side is rotated in this state, it becomes possible to blow warm air at a temperature considerably higher than in the conventional case.

In addition, in the above structure, an electromagnetic on-off valve (a valve that is controlled to open only when heating is started is provided between the refrigerant supply port (3a) of the vortex tube (3) and the refrigerant discharge port of the compressor (1). 10) is provided, the vortex tube (3) as described above only when heating is started.
Can be allowed to act, and thereafter the above effect of the vortex tube (3) can be stopped.

Further, in the structure provided with the electromagnetic opening / closing valve (10), the compressor (1) on the upstream side of the electromagnetic opening / closing valve (10), the discharge side refrigerant pipe (6), and the refrigerant inlet of the condenser (2). A four-way valve (5) is provided between the side refrigerant pipe (13), the refrigerant outlet side refrigerant pipe (16) of the evaporator (4), and the refrigerant inlet side refrigerant pipe (15) of the compressor (1). By doing so, it is possible to form a normal cooling / heating circuit that bypasses the vortex tube 3 after the completion of the heating operation with the electromagnetic on-off valve (10) closed and when the vortex tube (3) is not needed during the cooling operation.

[0016]

As a result of the above, according to the air conditioner of the present invention, the indoor unit fan can be swiftly started after heating is started, and the immediate warming performance during heating operation is improved.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

First, FIG. 1 shows the configuration of a refrigerant circuit of an air conditioner according to an embodiment of the present invention.

In the air conditioner of this embodiment, as shown in the figure, the compressor 1, the vortex tube 3, the condenser 2, the expansion mechanism 6, and the evaporator 4 are connected from the refrigerant discharge side to the suction side of the compressor 1. To form a refrigerant circulation circuit, the refrigerant supply port 3a of the vortex tube 3 is connected to the refrigerant discharge port side of the compressor 1 via refrigerant pipes 11 and 6, and An electromagnetic on-off valve 10 whose valve opening is controlled only when the heating is started is provided between 6 and 6. The high temperature side outlet 3b of the vortex tube 3 is provided with a check valve 8
To the refrigerant inlet side refrigerant pipe 13 of the condenser 2 via
The low temperature side outlet 3c is connected to the suction port of the compressor 1 via the refrigerant pipes 12 and 15, respectively. And
A check valve 8 is provided between the refrigerant pipes 12 and 15. The compressor 1, the evaporator 4, and the vortex tube 3 are arranged on the outdoor unit side, and the condenser 2 is arranged on the indoor unit side.

Further, in the vortex tube 3, for example, as shown in detail in FIG. 2, the amount of the low temperature refrigerant discharged from the low temperature side outlet 3c is considerably larger than the amount of the high temperature refrigerant discharged from the high temperature side outlet 3b. Designed for effective structure.

In other words, in the same construction, as shown in the figure, when a predetermined level of pressurized refrigerant is injected through the refrigerant supply port 3a in the tangential direction of the inner wall of the tube, the refrigerant makes a swirling flow and swirls in the tube, so that high energy is obtained. The hot refrigerant molecules are collected around the inside of the pipe, and the low-energy cold refrigerant molecules are collected in the central part of the pipe and are separated into two layers and flow in the opposite directions, so that the refrigerant can be efficiently separated into two components, cold heat and cold heat. Since the vortex tube 3 has no rotating portion, it is less worn and leaks, has a simple structure, is easy to manufacture, and is inexpensive. It also has the characteristic that its performance does not change even after many years of use.

A branch connection pipe 14 with the compressor 1 discharge side refrigerant pipe 6 upstream of the electromagnetic on-off valve 10, a refrigerant inlet side refrigerant pipe 13 of the condenser 2, and a refrigerant outlet side refrigerant pipe of the evaporator 4. 16. A four-way valve 5 is provided between the refrigerant suction port side refrigerant pipes 15 of the compressor 1, and the electromagnetic on-off valve 10 is closed by the four-way valve 5 after completion of heating startup or during cooling operation. When controlled, a normal cooling / heating circuit that bypasses the vortex tube 3 is formed.

As described above, in the configuration of the air conditioner of this embodiment, the compressor 1, the condenser 2, the expansion mechanism 6 and the evaporator 4 are included.
In the air conditioner in which the refrigerant circulation circuit is configured by sequentially connecting the above, the vortex tube 3 is provided between the compressor 1 and the condenser 4, and the refrigerant supply port 3a of the vortex tube 3 is provided in the compressor 1. Refrigerant discharge side refrigerant pipe 16
In addition, the high temperature side refrigerant outlet 3 of the vortex tube 3
b is connected to the refrigerant inlet side refrigerant pipe 13 of the condenser 2, and the low temperature side refrigerant outlet 3c of the vortex tube 3 is connected to the refrigerant inlet side refrigerant pipe 15 of the compressor 1, respectively. The refrigerant from the compressor 1 that has not reached the high temperature and high pressure state at the time of starting heating is first supplied to the vortex tube 3 and separated into cold heat as much as possible. Then, only the high temperature side component of the cold-heat separated refrigerant is condensed in the condenser 2
As a result, the refrigerant flowing into the condenser 2 becomes as hot as possible.

Therefore, even if the fan on the indoor unit side is rotated in this state, it becomes possible to blow hot air having a considerably higher temperature than in the conventional case.

Further, in this structure, an electromagnetic on-off valve 10 which is controlled to open only when the heating is started is provided between the refrigerant supply port 3a of the vortex tube 3 and the refrigerant discharge port of the compressor 1. Therefore, only when the heating is started, the vortex tube 3 can be made to act as described above, and thereafter, the above operation of the vortex tube 3 can be made to stop. Therefore, there is no fear that the efficiency of the refrigerant from the compressor 1 after the start of heating when the high-pressure and high-temperature state is completed and during the cooling operation is reduced.

As a result of the above, according to the air conditioner of the present embodiment, the indoor unit fan can be swiftly started after the heating is started, and the immediate warming performance during the heating operation is improved.

The vortex tube 3 having the above-mentioned structure may be provided in series and in parallel, and in such a case, a higher temperature high-temperature refrigerant can be supplied to the condenser 2.
Will be able to flow into.

[Brief description of drawings]

FIG. 1 is a refrigeration circuit diagram showing a configuration of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a structure of a main part of the refrigeration circuit of FIG.

FIG. 3 is a refrigeration circuit diagram showing a configuration of a conventional general air conditioner.

[Explanation of symbols]

1 is a compressor, 2 is a condenser, 3 is a vortex tube,
3a is a refrigerant supply port, 3b is a high temperature side outlet, 3c is a low temperature side outlet, and 4 is an evaporator.

Claims (3)

[Claims] 1. An air conditioner comprising a refrigerant circulation circuit in which a compressor (1), a condenser (2), an expansion mechanism (6) and an evaporator (4) are sequentially connected to each other, wherein the compressor ( A vortex tube (3) is provided between the condenser (4) and the refrigerant supply port (3) of the vortex tube (3).
a) is a refrigerant discharge side refrigerant pipe (16) of the compressor (1)
In addition, the high temperature side refrigerant outlet (3b) of the vortex tube (3) is connected to the refrigerant inlet side refrigerant pipe (13) of the condenser (2), and the low temperature side refrigerant outlet (3c) of the vortex tube (3). 2) is connected to the refrigerant inlet side refrigerant pipe (15) of the compressor (1), respectively. 2. An electromagnetic on-off valve (10) which is controlled to open only when heating is started is provided between the refrigerant supply port (3a) of the vortex tube (3) and the refrigerant discharge port of the compressor (1). The air conditioner according to claim 1, wherein: 3. A solenoid (10) upstream of the compressor (1) discharge side refrigerant pipe (6), a condenser (2) refrigerant inlet side refrigerant pipe (13), an evaporator (4) refrigerant. The air conditioner according to claim 2, wherein a four-way valve (5) is interposed between the outlet side refrigerant pipe (16) and the refrigerant inlet side refrigerant pipe (15) of the compressor (1). apparatus.