Economizer assembly and air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, in particular to an economizer assembly and an air conditioning system, and aims at solving the problems that an existing gas tank is independently arranged, so that the whole machine is redundant in structure, large in assembly difficulty and high in production cost. In order to achieve the purpose, the economizer assembly comprises a shell, an air supply cavity and an economizer cavity are formed in the shell, a partition plate is arranged between the air supply cavity and the economizer cavity, the air supply cavity is provided with an air supply refrigerant inlet and an air supply refrigerant outlet, and the air supply refrigerant outlet is used for supplying air to an air suspension bearing of the air suspension compressor; the economizer cavity is provided with an air supply port which is used for supplying air to the compressor. Wherein the air supply cavity and the economizer cavity are integrated on the same shell, that is, the air tank for supplying air to the air suspension bearing and the economizer are integrated together, so that pipelines of the economizer and the air tank can be concentrated together, the pipeline layout is more concentrated and simpler, the number of parts is reduced, the whole machine structure is simpler, and assembly and transportation are facilitated; and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technical field, concretely provides an economizer assembly and air conditioning system. BACKGROUND

[0002] With the development of economy and society, air conditioner has become the indispensable electrical equipment in family and office. Air conditioning system is equipped with compressor, in order to reduce the energy consumption and noise of compressor, gas suspension compressor emerges as the times require. Gas suspension compressor needs to provide a special gas supply pipeline for gas suspension bearing, so that gas suspension bearing can be suspended.

[0003] The existing gas suspension compressor gas supply system adopts the form of external independent gas tank. This structure is not convenient for integration when arranging the pipeline. The pipeline is messy, the pipeline is long, and the resistance is large. The overall prying of the evaporator, condenser, compressor, gas tank and economizer is difficult, the installation of the gas tank increases additional support, the overall unit is redundant, and it is not convenient for heat preservation, transportation and the like. In addition, the gas tank is produced separately, which increases additional processing time.

[0004] Therefore, an economizer assembly and air conditioning system are needed to solve the above technical problems. INVENTION CONTENTS

[0005] The utility model aims at solving the above technical problems, that is, solving the problem that the existing gas tank is set separately, causing the whole machine structure to be redundant, the assembly difficulty to be large and the production cost to be high.

[0006] In a first aspect, the utility model provides an economizer assembly, which comprises a shell, a gas supply cavity and an economizer cavity are arranged in the shell, a partition plate is arranged between the gas supply cavity and the economizer cavity, the gas supply cavity is provided with a gas supply refrigerant inlet and a gas supply refrigerant outlet, the gas supply refrigerant outlet is used for supplying gas to the gas suspension bearing of the gas suspension compressor, the economizer cavity is provided with a gas supplement port, and the gas supplement port is used for supplementing gas to the compressor.

[0007] In the specific embodiment of the above economizer assembly, the gas supply cavity and the economizer cavity are sequentially arranged along the vertical direction.

[0008] In the specific embodiment of the above economizer assembly, the gas supply cavity and the economizer cavity are sequentially arranged along the left-right direction.

[0009] In the specific embodiment of the above economizer assembly, the economizer assembly further comprises a heater arranged in the gas supply cavity and used for heating the refrigerant in the gas supply cavity.

[0010] In the specific embodiment of the above economizer assembly, the economizer assembly further comprises a liquid level meter arranged in the gas supply cavity and used for detecting the liquid level of the refrigerant in the gas supply cavity.

[0011] In the specific embodiment of the economizer assembly, the economizer assembly further comprises a first pressure detecting member arranged in the gas supply cavity and configured to detect the pressure of the gas supply cavity.

[0012] In the specific embodiment of the economizer assembly, the economizer assembly further comprises a demister arranged in the housing and located below the economizer cavity.

[0013] In the specific embodiment of the economizer assembly, the economizer assembly further comprises a separation device arranged in the housing and located below the demister, and the separation device is connected with a refrigerant inlet.

[0014] In the specific embodiment of the economizer assembly, the economizer assembly further comprises a filter plate arranged in the housing and located below the separation device, and the housing is provided with a liquid refrigerant outlet located below the filter plate.

[0015] In a second aspect, the utility model provides a kind of air conditioning system, which comprises:

[0016] The economizer assembly as described above;

[0017] Air-suspended compressor, and the gas supply refrigerant outlet is connected to the air-suspended bearing gas supply port of the air-suspended compressor.

[0018] The air supply interface of the air-suspended compressor is connected to the air supply port.

[0019] In the above technical solution, the economizer assembly of the utility model comprises a housing, a gas supply cavity and an economizer cavity are arranged in the housing, a partition plate is arranged between the gas supply cavity and the economizer cavity, the gas supply cavity is provided with a gas supply refrigerant inlet and a gas supply refrigerant outlet, the gas supply refrigerant outlet is used to supply air to the air-suspended bearing of the air-suspended compressor, the economizer cavity is provided with an air supply port, and the air supply port is used to supply air to the compressor. The gas tank for supplying air to the air-suspended bearing and the economizer are integrated together, the pipelines of the economizer and the gas tank can be concentrated together, the pipeline layout is more concentrated and simple, the number of parts of the air conditioning system is reduced, the structure of the whole machine is simpler, the assembly and transportation are facilitated, the processing time is reduced, and the production cost of the whole machine is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] The preferred embodiments of the utility model will be described below with reference to the accompanying drawings, in which:

[0021] Figure 1 is the structure diagram of the economizer assembly provided by the utility model;

[0022] Figure 2 is a structural schematic diagram of an air conditioning system provided by the utility model.

[0023] The list of reference signs: 1, shell; 2, gas supply cavity; 21, heater; 22, liquid level meter; 23, first pressure detection piece; 24, gas supply refrigerant inlet; 25, gas supply refrigerant outlet; 3, economizer cavity; 31, air supplementing port; 4, partition plate; 51, demister; 52, separation device; 53, filter plate; 61, refrigerant inlet; 62, liquid refrigerant outlet; 71, compressor; 72, condenser; 73, evaporator; 74, primary orifice plate; 75, secondary orifice plate; 76, filter; 77, refrigerant pump; 78, one-way valve. DETAILED DESCRIPTION

[0024] The preferred embodiments of the utility model are described below with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0025] It should be noted that in the description of the utility model, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicate the direction or positional relationship terms shown in the drawings, which are only for the convenience of description, and are not intended to indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0026] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0027] In order to solve the problem that the existing gas tank is separately arranged, resulting in redundant structure of the whole machine, great assembly difficulty and high production cost.

[0028] As shown in Figure 1 and 2 , the embodiment discloses an air conditioning system, which comprises a control module, a gas suspension compressor 71, an economizer assembly, an evaporator 73 and a condenser 72.

[0029] The exhaust port of the compressor 71 is connected to the first side of the condenser 72, and the suction port of the compressor 71 is connected to the second side of the evaporator 73. The compressor 71 is in communication connection with the control module, and the start-stop of the compressor 71 and the specific operation parameters of the compressor 71.

[0030] Temperature sensors are arranged on the surfaces of the evaporator 73 and the condenser 72, and the temperature sensors are in communication connection with the control module. The control module controls the frequency of the compressor 71, the opening degree of the throttling device, and the rotating speed of the side fans of the evaporator 73 and the condenser 72 according to the temperature information detected by the temperature sensors and the target temperature.

[0031] The economizer assembly comprises an outer shell 1, a partition plate 4 is arranged in the outer shell 1, and the partition plate 4 divides the inner chamber of the outer shell into a gas supply cavity 2 and an economizer cavity 3. The gas supply cavity 2 and the economizer cavity 3 are integrated on one outer shell 1, that is, the gas tank for supplying gas to the gas suspension bearing and the economizer are integrated together, so that the pipelines of the economizer and the gas tank can be concentrated together, the pipeline layout is more concentrated and simple, the number of air conditioning system parts is reduced, the whole machine structure is simpler, assembly and transportation are facilitated, processing time is reduced, and the production cost of the whole machine is reduced.

[0032] The partition plate 4 is arranged in the horizontal direction, so that the economizer cavity 3 and the gas supply cavity 2 are arranged in the vertical direction in sequence. Specifically, the gas supply cavity 2 is located above the economizer cavity 3.

[0033] It should be noted that, although the gas supply cavity 2 is located above the economizer cavity 3 in the embodiment, this is not a limitation of the utility model, and in other embodiments, the gas supply cavity 2 can also be arranged below the economizer cavity 3 without deviating from the principle of the utility model, which does not deviate from the basic principle of the utility model and falls within the protection scope of the utility model.

[0034] It should be noted that, although the partition plate 4 is arranged in the horizontal direction in the embodiment, this is not a limitation of the utility model, and in other embodiments, the partition plate 4 can be arranged in the vertical direction, so that the economizer cavity 3 and the gas supply cavity 2 are arranged in the left-right direction in sequence. Alternatively, the partition plate 4 is arranged obliquely, so that the gas supply cavity 2 and the economizer cavity 3 are arranged in the vertical direction and the left-right direction; all of which can enable the economizer cavity 3 and the gas supply cavity 2 to be arranged in one outer shell 1; all of which do not deviate from the basic principle of the utility model and fall within the protection scope of the utility model.

[0035] The gas supply cavity 2 is provided with a gas supply refrigerant inlet 24 and a gas supply refrigerant outlet 25, and the gas supply refrigerant inlet 24 is connected to the condenser 72 through a first pipeline. A refrigerant pump 77 is arranged on the first pipeline for sending refrigerant into the gas supply cavity 2. A one-way valve 78 is also arranged on the first pipeline, which only allows the refrigerant to flow from the condenser 72 to the gas supply cavity 2, and the one-way valve 78 is located downstream of the refrigerant pump 77, which can prevent the refrigerant in the gas supply cavity 2 from flowing back. A filter 76 is also arranged on the first pipeline for filtering the refrigerant flowing into the gas supply cavity 2.

[0036] It should be noted that although the one-way valve 78 is arranged on the first pipeline to prevent the refrigerant from flowing back in the embodiment, this is not a limitation of the utility model, and in other embodiments, a shut-off valve can be arranged on the first pipeline, the opening and closing of the shut-off valve is synchronized with the start and stop of the refrigerant pump 77, and when the refrigerant pump 77 is turned on, the shut-off valve is opened, and when the refrigerant pump 77 is turned off, the shut-off valve is closed. Similarly, the backflow of the refrigerant in the gas supply cavity 2 can also be avoided, which does not deviate from the basic principles of the utility model and falls within the protection scope of the utility model.

[0037] The gas supply refrigerant outlet 25 is connected to the gas supply port of the gas suspension bearing of the compressor 71, and the gas supply cavity 2 is used for supplying gas to the gas suspension bearing to enable the gas suspension bearing to be suspended, so that the compressor 71 can operate normally.

[0038] The economizer assembly further comprises a heater 21, a liquid level gauge 22 and a first pressure detection member 23, wherein the heater 21 is arranged in the gas supply cavity 2 and is used for heating the refrigerant in the gas supply cavity 2 to increase the pressure of the refrigerant in the gas supply cavity 2, so that there is sufficient pressure difference between the gas supply cavity 2 and the gas suspension bearing, specifically, the pressure difference is maintained within the range of 300Kpa-350Kpa, so that the gas suspension bearing can be suspended to enable the compressor 71 to operate normally.

[0039] The first pressure detection member 23 is arranged in the gas supply cavity 2 and is used for detecting the pressure of the gas supply cavity 2, and a second pressure detection member is arranged in the compressor 71 and is used for detecting the pressure in the compressor 71. The first pressure detection member 23 and the second pressure detection member are both pressure sensors, and the pressure difference is determined by the pressures detected by the two pressure detection members.

[0040] The liquid level gauge 22 is arranged in the gas supply cavity 2 and is used for detecting the liquid level of the refrigerant in the gas supply cavity 2. When the compressor 71 is initially operated, the refrigerant pump 77 pumps the liquid refrigerant from the bottom of the condenser 72 into the gas supply cavity 2. The liquid level gauge 22 measures the liquid level of the refrigerant in the gas supply cavity 2 of the compressor, and when the liquid level reaches 60%, the refrigerant pump 77 is turned off, and when the liquid level is lower than 40%, the refrigerant pump 77 is turned on.

[0041] The refrigerant pump 77, the heater 21, the liquid level meter 22, the first pressure detection member 23 and the second pressure detection member are all in communication connection with the control module. The control module controls the heater 21 and the liquid level meter 22 according to the detected pressure and liquid level. Specifically, according to the detected pressure, the pressure difference between the present gas supply cavity 2 and the gas suspension bearing is determined; when the detected pressure difference is less than the set pressure difference, the heater 21 is turned on or the heating power of the heater 21 is increased, so that the pressure of the gaseous refrigerant in the gas supply cavity 2 is increased, and the pressure difference is increased. During the normal operation of the compressor 71, the heating power of the heater 21 is controlled according to the operating parameters of the compressor 71 and the target pressure difference, so that the pressure of the gas supply cavity 2 can be maintained within the preset pressure range, and then the pressure difference can be maintained within the target pressure difference range.

[0042] In addition, when the liquid level detected by the liquid level meter 22 is lower than the lowest set liquid level during the initial operation of the compressor 71, the control module turns on the refrigerant pump 77 to deliver refrigerant to the gas supply cavity 2. When the liquid level detected by the liquid level meter 22 is higher than the highest set liquid level, the control module controls the refrigerant pump 77 to stop delivering refrigerant to the gas supply cavity 2. During the normal operation of the compressor 71, the control module can control the delivery capacity of the refrigerant pump 77 according to the operating parameters of the compressor 71, so that the liquid level of the gas supply cavity 2 can be maintained within the preset liquid level range.

[0043] The economizer cavity 3 is provided with a gas supplement port 31 for supplementing gas to the compressor 71. The compressor 71 is specifically a two-stage compressor 71, and the gas supplement port 31 is used to supplement gas to the compressor 71 to enable the compressor 71 to operate normally.

[0044] The shell 1 is also provided with a refrigerant inlet 61 and a liquid refrigerant outlet 62. The refrigerant inlet 61 is connected to the second side of the condenser 72, and the refrigerant flowing out of the condenser 72 flows into the economizer through the refrigerant inlet 61.

[0045] The economizer assembly further comprises a demister 51, a separation device 52 and a filter plate 53. The demister 51 is arranged in the shell 1 and located below the economizer cavity 3. The separation device 52 is arranged in the shell 1 and located below the demister 51, and the separation device 52 is connected to the refrigerant inlet 61. The separation device 52 is specifically an inner separation cylinder. The filter plate 53 is arranged in the shell 1 and located below the separation device 52. The shell is provided with a liquid refrigerant outlet 62 located below the filter plate 53. The filter plate 53 is provided with a plurality of filter holes for filtering.

[0046] The liquid refrigerant outlet 62 is arranged at the bottom of the shell 1, so that the liquid refrigerant below the filter plate 53 can flow out through the liquid refrigerant outlet 62. The liquid refrigerant outlet 62 is connected to the first side of the evaporator 73.

[0047] A first orifice plate 74 is arranged between the condenser 72 and the refrigerant inlet 61, and a second orifice plate 75 is arranged between the evaporator 73 and the liquid refrigerant outlet 62.

[0048] After entering the compressor 71, the low-pressure gaseous refrigerant is compressed by the compressor 71 into high-temperature and high-pressure gaseous refrigerant, and then is delivered to the condenser 72 through the discharge port of the compressor 71. The gaseous refrigerant is changed into liquid refrigerant after heat exchange in the condenser 72. The liquid refrigerant is delivered to the evaporator 73, and is changed into gaseous refrigerant after heat exchange in the evaporator 73, and is delivered to the compressor 71 again for compression.

[0049] A throttling device is arranged between the evaporator 73 and the condenser 72, and is specifically arranged between the economizer assembly and the evaporator 73. The throttling device is specifically an electronic expansion valve, which is used for adjusting the flow rate to adjust the refrigeration or heating capacity of the air conditioning system.

[0050] During operation, the refrigerant in the liquid tank at the bottom of the condenser 72 is delivered to the gas supply cavity 2 by the refrigerant pump 77. The refrigerant in the gas supply cavity 2 is delivered to the compressor 71 through the gas supply refrigerant outlet 25, so that the gas suspension bearing can be suspended, and thus the compressor 71 can operate normally.

[0051] The refrigerant flowing out of the condenser 72 enters the inner separation cylinder tangentially through the refrigerant inlet 61, and is subjected to gas-liquid separation in the separation cylinder. Part of the liquid refrigerant falls to the filter plate 53 along the cylinder body to avoid rotation, and a small part is blown up by the airflow and falls at the top of the separation cylinder due to the decrease in airflow speed,

[0052] The liquid refrigerant falls along the cavity between the inner separation cylinder and the inner wall of the shell 1 to the filter plate 53. The filter plate 53 is provided with a plurality of filter holes. The liquid refrigerant enters the liquid refrigerant area through the filter holes. The filter plate 53 can reduce the liquid level fluctuation in the liquid refrigerant area, i.e., the area below the filter plate 53, and can ensure that the refrigerant of the liquid refrigerant outlet 62 stably flows outward. The gaseous refrigerant in the inner separation cylinder rises upward in the center of the separation cylinder, filters out large liquid droplets through the demister 51, enters the gaseous refrigerant area, i.e., the economizer cavity 3, and the refrigerant in the economizer cavity 3 is supplemented to the compressor 71 through the gas supplement port 31 to improve the working capacity of the compressor 71.

[0053] The technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will all fall within the protection scope of the present application.

Claims

1. An economizer assembly comprising: It comprises a shell (1), which is internally provided with a gas supply cavity (2) and an economizer cavity (3), a partition (4) is arranged between the gas supply cavity (2) and the economizer cavity (3), the gas supply cavity (2) is provided with a gas supply refrigerant inlet (24) and a gas supply refrigerant outlet (25), the gas supply refrigerant outlet (25) is used for supplying gas to a gas suspension bearing of a gas suspension compressor (71), the economizer cavity (3) is provided with a gas supplement port (31), the gas supplement port (31) is used for supplementing gas to the compressor (71).

2. The economizer assembly of claim 1, wherein, The gas supply cavity (2) and the economizer cavity (3) are sequentially arranged in the vertical direction.

3. The economizer assembly of claim 1, wherein, The gas supply cavity (2) and the economizer cavity (3) are sequentially arranged in the left-right direction.

4. The economizer assembly of claim 1, wherein, The economizer assembly further comprises a heater (21) arranged in the gas supply cavity (2) and used for heating the refrigerant in the gas supply cavity (2).

5. The economizer assembly of claim 1, wherein, The economizer assembly further comprises a liquid level meter (22) arranged in the gas supply cavity (2) and used for detecting the liquid level of the refrigerant in the gas supply cavity (2).

6. The economizer assembly of claim 1, wherein, The economizer assembly further comprises a first pressure detection member (23) arranged in the gas supply cavity (2) and used for detecting the pressure of the gas supply cavity (2).

7. The economizer assembly of claim 1, wherein, The economizer assembly further comprises a demister (51) arranged in the shell (1) and located below the economizer cavity (3).

8. The economizer assembly of claim 7, wherein, The economizer assembly further comprises a separation device (52) arranged in the shell (1) and located below the demister (51), and the separation device (52) is connected with a refrigerant inlet (61).

9. The economizer assembly of claim 8, wherein, The economizer assembly further comprises a filter plate (53) arranged in the shell (1) and located below the separation device (52), and the shell (1) is provided with a liquid refrigerant outlet (62) located below the filter plate (53).

10. An air conditioning system characterized by, It comprises: The economizer assembly according to any one of claims 1-9; A gas suspension compressor (71), and the gas supply refrigerant outlet (25) is connected to a gas supply port of a gas suspension bearing of the gas suspension compressor (71); The gas supplement port (31) is connected to a gas supplement interface of the gas suspension compressor (71). The gas supplement port (31) is connected to a gas supplement interface of the gas suspension compressor (71).

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