CN212132783U

CN212132783U - Air conditioning system and equipment

Info

Publication number: CN212132783U
Application number: CN202020978739.0U
Authority: CN
Inventors: 丘文导
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2020-12-11
Anticipated expiration: 2030-06-01

Abstract

The utility model provides an air conditioning system and equipment, which relates to the technical field of air conditioning systems or equipment, wherein the air conditioning system comprises a compressor, a first heat exchanger, a first branch and a second branch which are connected between the compressor and the first heat exchanger; the first branch and the second branch are arranged in parallel, and the first branch can be connected with the compressor and the first heat exchanger to form a refrigeration loop; the second branch can be connected with the compressor and the first heat exchanger to form a heating circuit. The air conditioning apparatus includes an air conditioning system. Through the air conditioning system, the technical problems of low energy efficiency and high operating cost of the conventional air-cooled heat pump unit in the prior art during cooling are solved.

Description

Air conditioning system and equipment

Technical Field

The utility model belongs to the technical field of the technique of air conditioning system or equipment and specifically relates to an air conditioning system and equipment are related to.

Background

For large places requiring cooling in summer and heating in winter, the design and configuration scheme on the market at present is generally as follows:

1. in summer, a water-cooling water chilling unit is used for cooling, and in winter, an air-cooling heat pump unit is used for supplying heat. This solution causes repeated procurement of cooling equipment, increasing investment costs.

2. The conventional air-cooled heat pump unit is adopted for supplying cold and heat. The scheme has low energy efficiency and high operating cost during cold supply.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air conditioning system and equipment to alleviate the conventional air-cooled heat pump set that exists among the prior art, the efficiency is low when the cooling, technical problem that the working costs is high.

In a first aspect, an embodiment of the present invention provides an air conditioning system, including: the heat exchanger comprises a compressor, a first heat exchanger, a first branch and a second branch, wherein the first branch and the second branch are connected between the compressor and the first heat exchanger.

The first branch and the second branch are arranged in parallel, and the first branch can be connected with the compressor and the first heat exchanger to form a refrigeration loop.

The second branch may be connected with the compressor and the first heat exchanger to form a heating circuit.

Further, first branch includes first switch and water cooled condenser, first switch with water cooled condenser series connection.

Further, the second branch includes a second switch and a second heat exchanger, the second switch being connected in series with the second heat exchanger.

Further, the air conditioning system further comprises a liquid storage device.

When the refrigeration circuit works, the liquid discharged from the first branch enters the liquid storage device and enters the first heat exchanger from the liquid storage device.

When the heating loop works, liquid discharged by the first heat exchanger enters the liquid storage device and enters the second heat exchanger from the liquid storage device.

Furthermore, be equipped with first check valve on the first branch road, be equipped with first choke valve on the second branch road.

And a second check valve and a second throttling valve are arranged between the liquid storage device and the first heat exchanger, and the second check valve and the second throttling valve are arranged in parallel.

Further, the first switch and the second switch both adopt electromagnetic valves.

Further, the refrigeration circuit and the heating circuit are not operated simultaneously, and the first heat exchanger functions as an evaporator when the refrigeration circuit is operated.

When the heating loop works, the first heat exchanger acts as a condenser.

Further, the air conditioning system further comprises a four-way electromagnetic valve.

The first oil port of the four-way solenoid valve is connected with the outlet of the compressor, the second oil port of the four-way solenoid valve is connected with the inlet of the compressor, the third oil port of the four-way solenoid valve is connected with the first heat exchanger, and the fourth oil port of the four-way solenoid valve is connected with the first branch and the second branch pipeline.

Furthermore, the second heat exchanger adopts a form that a fin type heat exchange tube and a fan work in a matching mode.

Has the advantages that:

when the air conditioning system needs to refrigerate, the compressor, the first heat exchanger and the first branch circuit form a refrigeration loop, and the refrigeration loop is started at the moment, so that the air conditioning system can refrigerate to be used in summer; similarly, when heating is needed, the compressor, the first heat exchanger and the second branch form a heating loop, and the heating loop is started, so that the air conditioning system can realize heating, and the air conditioning system can be used in winter conveniently; compared with the prior art, the air conditioning system avoids repeated purchase of a water chilling unit and saves investment cost; in addition, when the air conditioning system is used for refrigerating, the energy saving rate of cooling can be improved, and the operating cost is saved.

In a second aspect, an embodiment of the present invention provides an air conditioning apparatus, including: the air conditioning system of any of the preceding embodiments.

Has the advantages that:

the utility model provides an air conditioning equipment includes aforementioned air conditioning system, from this, technical advantage and effect that this air conditioning equipment reached include technical advantage and effect that air conditioning system reached equally, and here is no longer repeated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of an operation circuit of an air conditioning system in a refrigeration state according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an operation circuit of an air conditioning system in a heating state according to an embodiment of the present invention.

Icon:

100-a compressor;

200-a first heat exchanger;

300-a first branch; 310-a first switch; 320-a water-cooled condenser;

400-a second branch; 410-a second switch; 420-a second heat exchanger;

500-a reservoir;

610-a first check valve; 620-a second check valve;

710-a first throttle valve; 720-a second throttle valve;

800-four-way solenoid valve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

The present embodiment provides an air conditioning system, as shown in fig. 1, which includes a compressor 100, a first heat exchanger 200, and a first branch 300 and a second branch 400 connected therebetween; the first branch 300 is arranged in parallel with the second branch 400, and the first branch 300 can be connected with the compressor 100 and the first heat exchanger 200 to form a refrigeration circuit; the second branch 400 can be connected with the compressor 100 and the first heat exchanger 200 to form a heating circuit.

In the air conditioning system provided by the embodiment, when refrigeration is needed, the compressor 100, the first heat exchanger 200 and the first branch 300 form a refrigeration loop, and the refrigeration loop is started at this time, so that the air conditioning system can realize refrigeration, and is convenient to use in summer; similarly, when heating is needed, the compressor 100, the first heat exchanger 200 and the second branch 400 form a heating loop, and the heating loop is started, so that the air conditioning system can realize heating, and the air conditioning system can be used in winter; as can be seen from the foregoing, the air conditioning system can share the compressor 100 and the first heat exchanger 200 during cooling and heating operations, and compared with the prior art, the air conditioning system avoids repeated procurement of a water chiller, thereby saving investment cost; in addition, when the air conditioning system is used for refrigerating, the energy saving rate of cooling can be improved, and the operating cost is saved.

As shown in fig. 1, the first branch 300 includes a first switch 310 and a water-cooled condenser 320, and the first switch 310 is connected in series with the water-cooled condenser 320.

For the water-cooled condenser 320, a cooling water pump and a cooling tower are arranged outside the unit.

With continued reference to fig. 1, the second branch 400 includes a second switch 410 and a second heat exchanger 420, and the second switch 410 is connected in series with the second heat exchanger 420.

Referring to fig. 1 again, the air conditioning system further includes a reservoir 500; when the refrigeration circuit works, the liquid discharged from the first branch circuit 300 enters the liquid accumulator 500, and enters the first heat exchanger 200 from the liquid accumulator 500; when the heating circuit is in operation, the liquid discharged from the first heat exchanger 200 enters the accumulator 500, and then enters the second heat exchanger 420 from the accumulator 500.

Specifically, the first branch 300 is provided with a first check valve 610, and the second branch 400 is provided with a first throttle valve 710; a second check valve 620 and a second throttle 720 are provided between the accumulator 500 and the first heat exchanger 200, and the second check valve 620 is provided in parallel with the second throttle 720.

Alternatively, the first switch 310 and the second switch 410 are both solenoid valves.

In the present embodiment, as shown in fig. 1 and 2, the refrigeration circuit and the heating circuit are not operated at the same time, and the first heat exchanger 200 functions as an evaporator when the refrigeration circuit is operated; the first heat exchanger 200 functions as a condenser when the heating circuit is operated.

In this embodiment, the air conditioning system further includes a four-way solenoid valve 800; a first oil port of the four-way solenoid valve 800 is connected to an outlet of the compressor 100, a second oil port of the four-way solenoid valve 800 is connected to an inlet of the compressor 100, a third oil port of the four-way solenoid valve 800 is connected to the first heat exchanger 200, and a fourth oil port of the four-way solenoid valve 800 is connected to a pipeline before the first branch 300 and the second branch 400.

In one embodiment of the present application, the second heat exchanger 420 is in the form of a finned heat exchange tube and a fan working together.

Referring to fig. 1, the operation lines of the air conditioning system of the present embodiment in the cooling state are sequentially:

the compressor 100, the first oil port of the four-way solenoid valve 800, the fourth oil port of the four-way solenoid valve 800, the first switch 310, the water-cooled condenser 320, the first check valve 610, the accumulator 500, the second throttle valve 720, the first heat exchanger 200, the third oil port of the four-way solenoid valve 800, and the second oil port of the four-way solenoid valve 800.

In this process, the fans of the second switch 410 and the second heat exchanger 420 are both off; and (5) starting an external cooling water pump of the unit and the cooling tower. The air conditioning system adopts a water cooling mode for cooling, and the air conditioning system is similar to a water cooling water chilling unit.

Referring to fig. 2, the operation lines of the air conditioning system of the present embodiment in the heating state are in sequence:

the compressor 100, the first oil port of the four-way solenoid valve 800, the third oil port of the four-way solenoid valve 800, the first heat exchanger 200, the second check valve 620, the accumulator 500, the first throttle valve 710, the second heat exchanger 420, the second switch 410, the fourth oil port of the four-way solenoid valve 800, and the second oil port of the four-way solenoid valve 800.

In this process, the first switch 310 is turned off and the fan of the second heat exchanger 420 is turned on. And closing the external cooling water pump and the cooling tower of the unit. The air conditioning system adopts an air source mode for heating, and is similar to an air source heat pump unit.

In summary, the air conditioning system of this embodiment switches the refrigerant flow direction through the first switch 310 and the second switch 410, so that the water-cooled condenser 320 is selected for cooling when the air conditioning system performs refrigeration, the conventional air-cooled heat pump unit is cooled by natural air, the cooling effect is poor in high-temperature seasons, the energy efficiency is low, the energy consumption is large, the energy efficiency ratio is generally about 3.0, and the cooling of the refrigerant can be effectively assisted by using water cooling, so that the energy efficiency is improved, the energy efficiency ratio can reach more than 5.0 (the data can be obtained by calculation), and the comprehensive energy saving rate can reach more than 40% (the data can be obtained by calculation).

The embodiment also provides air conditioning equipment which comprises the air conditioning system. The air conditioning equipment provided by the embodiment comprises the air conditioning system, and therefore the technical advantages and effects achieved by the air conditioning equipment also comprise the technical advantages and effects achieved by the air conditioning system, and are not repeated herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. An air conditioning system, comprising: a compressor (100), a first heat exchanger (200) and a first branch (300) and a second branch (400) connected therebetween;

the first branch (300) is arranged in parallel with the second branch (400), and the first branch (300) can be connected with the compressor (100) and the first heat exchanger (200) to form a refrigeration circuit; the second branch (400) is connectable with the compressor (100) and the first heat exchanger (200) to form a heating circuit.

2. The air conditioning system of claim 1, wherein the first branch (300) comprises a first switch (310) and a water cooled condenser (320), the first switch (310) being connected in series with the water cooled condenser (320).

3. Air conditioning system according to claim 2, characterized in that the second branch (400) comprises a second switch (410) and a second heat exchanger (420), the second switch (410) being connected in series with the second heat exchanger (420).

4. Air conditioning system according to claim 3, characterized in that it further comprises an accumulator (500);

when the refrigeration circuit works, the liquid discharged by the first branch (300) enters the liquid receiver (500) and enters the first heat exchanger (200) from the liquid receiver (500);

when the heating loop works, the liquid discharged by the first heat exchanger (200) enters the liquid storage device (500), and enters the second heat exchanger (420) from the liquid storage device (500).

5. Air conditioning system according to claim 4, characterized in that a first check valve (610) is provided on the first branch (300) and a first throttle valve (710) is provided on the second branch (400);

a second check valve (620) and a second throttle valve (720) are arranged between the liquid storage device (500) and the first heat exchanger (200), and the second check valve (620) and the second throttle valve (720) are arranged in parallel.

6. The air conditioning system of claim 3, wherein the first switch (310) and the second switch (410) are each solenoid valves.

7. Air conditioning system according to claim 3, wherein the refrigeration circuit and the heating circuit operate non-simultaneously, the first heat exchanger (200) acting as an evaporator when the refrigeration circuit is operating; the first heat exchanger (200) functions as a condenser when the heating circuit is in operation.

8. The air conditioning system according to any one of claims 1 to 7, further comprising a four-way solenoid valve (800);

the first oil port of the four-way solenoid valve (800) is connected with the outlet of the compressor (100), the second oil port of the four-way solenoid valve (800) is connected with the inlet of the compressor (100), the third oil port of the four-way solenoid valve (800) is connected with the first heat exchanger (200), and the fourth oil port of the four-way solenoid valve (800) is connected with the first branch (300) and the second branch (400).

9. An air conditioning system according to claim 3, wherein the second heat exchanger (420) is in the form of a finned heat exchanger tube and fan in cooperation.

10. An air conditioning apparatus, characterized by comprising: an air conditioning system as claimed in any one of claims 1 to 9.