CN218439651U - Air supply system of air suspension compressor and refrigerating unit - Google Patents

Air supply system of air suspension compressor and refrigerating unit Download PDF

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Publication number
CN218439651U
CN218439651U CN202222050014.7U CN202222050014U CN218439651U CN 218439651 U CN218439651 U CN 218439651U CN 202222050014 U CN202222050014 U CN 202222050014U CN 218439651 U CN218439651 U CN 218439651U
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liquid
pipeline
communicated
air
storage tank
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张辉
张晓锐
张晨旭
邓善营
王书森
王嘉俊
张捷
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Abstract

The application relates to the technical field of refrigeration, discloses a gas supply system of gas suspension compressor, includes: a gas suspension compressor; the circulating main loop is provided with a condenser and an evaporator, the condenser is communicated with an exhaust port of the gas suspension compressor through an exhaust pipeline, and the evaporator is communicated with an air suction port of the gas suspension compressor through an air suction pipeline; the liquid storage tank is respectively communicated with the condenser and the evaporator through a plurality of liquid taking pipelines; and the air supply tank is communicated with the liquid storage tank through a liquid outlet pipeline and is communicated with an air supply port of the air suspension compressor through an air supply pipeline. This application can be when the unit restarts through the liquid storage pot direct for the gas supply tank fills liquid refrigerant, is favorable to the quick start of unit. The liquid storage tank can be used for taking liquid from the condenser and the evaporator so as to reduce the negative influence on the working performance of the unit caused by unilateral liquid taking. Therefore, the service life of the gas supply part can be prolonged, and the reliability of the unit during starting operation can be improved. The application also discloses a refrigerating unit.

Description

Air supply system of air suspension compressor and refrigerating unit
Technical Field
The present application relates to the field of refrigeration technology, and for example, to an air supply system for an air suspension compressor and a refrigeration unit.
Background
At present, the air suspension air supply system mostly adopts components such as a refrigerant pump, an electric heater, an air supply tank and the like to supply air to a compressor. When the unit is restarted after being stopped, the refrigerant pump needs to be started first under the condition that the refrigerant in the air supply tank is possibly insufficient. At the moment, the refrigerant pump stops for a long time, the refrigerant in the pipeline exchanges heat with air to be evaporated, so that gas possibly exists in the pipeline, the refrigerant pump cannot introduce the refrigerant into the gas supply tank for a short time, and the starting time is longer. And the long-term dry running of the refrigerant pump can also damage the service life of the refrigerant pump, reduce the reliability of the unit and cause the unit to be incapable of being started normally. To this end, the related art proposes a bearing air supply system for a compressor, comprising: the system comprises a compressor, a condenser and a refrigerant circulation loop where the compressor and the condenser are located; the liquid storage tank is communicated with the condenser, so that the refrigerant in the condenser flows into the liquid storage tank; the air supply tank is communicated with the liquid storage tank and the bearing air supply hole of the compressor; the first pipeline is communicated with the top of the liquid storage tank and the top of the gas supply tank; the second pipeline is communicated with the bottom of the liquid storage tank and the bottom of the gas supply tank; the gas supply tank is characterized in that the height of the top end of the inner cavity of the liquid storage tank is smaller than or equal to the height of the top end of the inner cavity of the gas supply tank, and the height of the top end of the inner cavity of the liquid storage tank is larger than the height of the bottom end of the inner cavity of the gas supply tank.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
in the related art, only the liquid refrigerant is extracted from the condenser, and excessive liquid extraction may bring a large load to the condenser, thereby affecting the working performance of the whole unit.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides an air supply system of an air suspension compressor and a refrigerating unit, which can prolong the service life of a working part in the air supply system and are beneficial to improving the reliability of the unit during starting operation.
In some embodiments, the air supply system of the air suspension compressor comprises: a gas suspension compressor; the circulating main loop is provided with a condenser and an evaporator, the condenser is communicated with an exhaust port of the gas suspension compressor through an exhaust pipeline, and the evaporator is communicated with an air suction port of the gas suspension compressor through an air suction pipeline; the liquid storage tank is respectively communicated with the condenser and the evaporator through a plurality of liquid taking pipelines; and the air supply tank is communicated with the liquid storage tank through a liquid outlet pipeline and is communicated with an air supply port of the air suspension compressor through an air supply pipeline.
Optionally, the liquid extraction line comprises: one end of the first liquid taking pipeline is communicated with the condenser, the other end of the first liquid taking pipeline is communicated with the liquid storage tank, and the first liquid taking pipeline is provided with a first control valve; and one end of the second liquid taking pipeline is communicated with the evaporator, the other end of the second liquid taking pipeline is communicated with the liquid storage tank, and a second control valve is arranged on the second liquid taking pipeline.
Optionally, the air supply system of the air suspension compressor further comprises: and one end of the first bypass pipeline is communicated with the liquid storage tank, the other end of the first bypass pipeline is communicated with the air suction pipeline, and the first bypass pipeline is provided with a third control valve.
Optionally, the installation height of the liquid storage tank is lower than that of the evaporator, so that under the condition that the second liquid taking pipeline is conducted, the liquid refrigerant in the evaporator flows into the liquid storage tank under the action of gravity.
Optionally, the liquid outlet pipe is provided with a refrigerant pump, the liquid outlet pipe between the refrigerant pump and the gas supply tank is provided with a fourth control valve, and the liquid outlet pipe between the refrigerant pump and the liquid storage tank is provided with a fifth control valve.
Optionally, the air supply system of the air suspension compressor further comprises: one end of the second bypass pipeline is communicated with the refrigerant pump, the other end of the second bypass pipeline is communicated with the first liquid taking pipeline, and the second bypass pipeline is provided with a sixth control valve; and/or a third bypass pipeline, wherein one end of the third bypass pipeline is communicated with the refrigerant pump, the other end of the third bypass pipeline is communicated with the second liquid taking pipeline, and a seventh control valve is arranged on the third bypass pipeline.
Optionally, a heating device is disposed in the air supply tank, and the heating device is configured to heat a liquid refrigerant in the air supply tank.
Optionally, the air supply system of the air suspension compressor further comprises: one end of the air return pipeline is communicated with the air suspension compressor, and the other end of the air return pipeline is communicated with the evaporator; and/or a cooling pipeline, wherein one end of the cooling pipeline is communicated with the gas suspension compressor, and the other end of the cooling pipeline is communicated with the condenser.
Optionally, the air supply system of the air suspension compressor further comprises: the liquid level meter comprises a first liquid level meter, a second liquid level meter and a third liquid level meter, the first liquid level meter is arranged on the evaporator, the second liquid level meter is arranged on the liquid storage tank, and the third liquid level meter is arranged on the gas supply tank; pressure sensor, including first pressure sensor, second pressure sensor, third pressure sensor and fourth pressure sensor, first pressure sensor set up in the return air pipeline, second pressure sensor set up in the air feed jar, third pressure sensor set up in the liquid storage pot, fourth pressure sensor set up in the evaporimeter.
In some embodiments, the refrigeration unit comprises the aforementioned air supply system of the air suspension compressor.
The air supply system and the refrigerating unit of the air suspension compressor provided by the embodiment of the disclosure can realize the following technical effects:
in the embodiment of the disclosure, the liquid refrigerant is stored by additionally arranging the liquid storage tank, and the liquid refrigerant can be directly filled into the gas supply tank when the unit is restarted, so that the unit can be quickly started. The liquid storage pot both can be followed the condenser and got liquid, also can follow the evaporimeter and get liquid, can reduce the unilateral negative effect that gets liquid and bring the unit working property from this. Therefore, the service life of the working parts in the gas supply system can be prolonged, and the reliability of the unit during starting operation can be improved.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
FIG. 1 is a schematic diagram of an air supply system of an air suspension compressor according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an air supply system of another air suspension compressor provided in the embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of an air supply system of another air suspension compressor provided in the embodiment of the present disclosure;
FIG. 4 is a schematic structural diagram of an air supply system of another air suspension compressor provided by the embodiment of the disclosure;
fig. 5 is a schematic structural diagram of an air supply system of another air suspension compressor provided in the embodiment of the present disclosure.
Reference numerals:
1: a gas suspension compressor; 2: a condenser; 3: an evaporator; 4: a liquid storage tank; 5: an air supply tank; 6: a refrigerant pump; 7: a heating device; 10: circulating the main loop; 101: an exhaust line; 102: an air intake pipeline; 20: a liquid taking pipeline; 201: a first liquid extraction pipeline; 202: a second liquid taking pipeline; 30: a liquid outlet pipeline; 40: a gas supply line; 501: a first bypass line; 502: a second bypass line; 503: a third bypass line; 60: a gas return line; 70: a cooling pipeline; 81: a first control valve; 82: a second control valve; 83: a third control valve; 84: a fourth control valve; 85: a fifth control valve; 86: a sixth control valve; 87: a seventh control valve; 88: an eighth control valve; 89: a first check valve; 810: a second one-way valve; 811: a third check valve; 91: a first liquid level meter; 92: a second level gauge; 93: a third liquid level meter; 94: a first pressure sensor; 95: a second pressure sensor; 96: a third pressure sensor; 97: and a fourth pressure sensor.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
At present, the air suspension air supply system mostly adopts components such as a refrigerant pump, an electric heater, an air supply tank and the like to supply air to a compressor. When the unit is restarted after being stopped, the refrigerant pump needs to be started first under the condition that the refrigerant in the air supply tank is possibly insufficient. At the moment, the refrigerant pump stops for a long time, the refrigerant in the pipeline exchanges heat with air to be evaporated, so that gas possibly exists in the pipeline, the refrigerant pump cannot introduce the refrigerant into the gas supply tank for a short time, and the starting-up time is long. And the long-term dry running of the refrigerant pump can also damage the service life of the refrigerant pump, reduce the reliability of the unit and cause the unit to be incapable of being started normally. To this end, the related art proposes a bearing air supply system for a compressor, comprising: the system comprises a compressor, a condenser and a refrigerant circulation loop where the compressor and the condenser are located; the liquid storage tank is communicated with the condenser, so that the refrigerant in the condenser flows into the liquid storage tank; the air supply tank is communicated with the liquid storage tank and the bearing air supply hole of the compressor; the first pipeline is communicated with the top of the liquid storage tank and the top of the air supply tank; the second pipeline is communicated with the bottom of the liquid storage tank and the bottom of the gas supply tank; the gas supply tank is characterized in that the height of the top end of the inner cavity of the liquid storage tank is smaller than or equal to the height of the top end of the inner cavity of the gas supply tank, and the height of the top end of the inner cavity of the liquid storage tank is larger than the height of the bottom end of the inner cavity of the gas supply tank.
However, in the related art, only the liquid refrigerant is extracted from the condenser, and excessive liquid extraction may bring a large load to the condenser, thereby affecting the working performance of the whole unit.
Referring to fig. 1, an embodiment of the present disclosure provides an air supply system of an air suspension compressor, including an air suspension compressor 1, a main circulation loop 10, a liquid storage tank 4, and an air supply tank 5. The main circulation loop 10 is provided with a condenser 2 and an evaporator 3, the condenser 2 is communicated with an exhaust port of the air suspension compressor 1 through an exhaust pipeline 101, and the evaporator 3 is communicated with an air suction port of the air suspension compressor 1 through an air suction pipeline 102. The liquid storage tank 4 is respectively communicated with the condenser 2 and the evaporator 3 through a plurality of liquid taking pipelines 20. And the air supply tank 5 is communicated with the liquid storage tank 4 through the liquid outlet pipeline 30 and is communicated with an air supply port of the air suspension compressor 1 through the air supply pipeline 40.
By adopting the air supply system of the air suspension compressor provided by the embodiment of the disclosure, the liquid refrigerant is stored by additionally arranging the liquid storage tank 4, the liquid refrigerant can be directly filled into the air supply tank 5 when the unit is restarted, and the quick start of the unit is facilitated. The liquid storage tank 4 can be used for taking liquid from the condenser 2 and can also be used for taking liquid from the evaporator 3, so that the negative influence of unilateral liquid taking on the working performance of the unit can be reduced. Therefore, the service life of the working parts in the gas supply system can be prolonged, and the reliability of the unit during starting operation can be improved.
The air levitation compressor is a compressor including an air levitation bearing. Specifically, at present, oil-lubricated bearings, electromagnetic bearings and air-suspension bearings are mainly adopted as compressor bearings of centrifugal units. The oil lubrication bearing needs to be added with an oil supply system, and lubricating oil can leak into a refrigerant to cause refrigerant pollution. And the electromagnetic bearing and the air suspension bearing are oilless bearings, and the friction resistance between the electromagnetic bearing and the rotor is small. However, the electromagnetic bearing needs a complex control system, and the electromagnetic bearing has poor shock resistance, so that a bearing protection system needs to be additionally added. Compared with an electromagnetic bearing, the air suspension bearing does not need an additional control system and is simpler in structure. The air suspension bearing comprises a static pressure bearing and a dynamic pressure bearing, wherein the static pressure bearing needs an air supply system, and the air supply system comprises a refrigerant pump, an air supply tank, an electric heater and the like. Liquid is taken from an evaporator or a condenser by a refrigerant pump, liquid refrigerant is introduced into a gas supply tank, and gas is supplied to the bearing after being heated by an electric heater.
Optionally, the main circulation circuit 10 is further provided with an eighth control valve 88. Wherein the eighth control valve 88 is an electronic expansion valve. By controlling the opening of the eighth control valve 88, the embodiment of the present disclosure can regulate and control the flow rate and pressure on the main circulation loop 10, so as to better exert the working performance of the unit.
Optionally, the liquid taking line 20 comprises a first liquid taking line 201 and a second liquid taking line 202. One end of the first liquid taking pipeline 201 is communicated with the condenser 2, the other end is communicated with the liquid storage tank 4, and the first liquid taking pipeline 201 is provided with a first control valve 81. One end of the second liquid taking pipeline 202 is communicated with the evaporator 3, the other end is communicated with the liquid storage tank 4, and the second liquid taking pipeline 202 is provided with a second control valve 82. Therefore, the liquid storage tank 4 can be used for taking liquid from the condenser 2 and can also be used for taking liquid from the evaporator 3, and therefore the negative influence of unilateral liquid taking on the working performance of the unit can be reduced.
Optionally, the air supply system of the air suspension compressor further comprises a first bypass line 501. One end of the first bypass line 501 is communicated with the liquid storage tank 4, and the other end is communicated with the suction line 102, and the first bypass line 501 is provided with a third control valve 83. In this way, by controlling the third control valve 83 to open, the disclosed embodiment may render the first bypass line 501 conductive. Since the reservoir 4 is in direct communication with the suction line 102, the pressure in the reservoir 4 will then gradually decrease until it approaches the pressure of the evaporator 3. Subsequently, the first control valve 81 is controlled to open, so that the first liquid taking pipeline 201 can be conducted. Because the pressure of the liquid storage tank 4 is lower than that of the condenser 2, the liquid refrigerant can smoothly enter the liquid storage tank 4 from the condenser 2 under the action of pressure difference, and thus the liquid taking operation of the liquid storage tank 4 can be completed.
Alternatively, the installation height of the liquid reservoir 4 is lower than that of the evaporator 3. Thus, the second liquid drawing line 202 can be opened by opening the second control valve 82. Because the position of the liquid storage tank 4 is lower than that of the evaporator 3, the liquid refrigerant can smoothly enter the liquid storage tank 4 from the evaporator 3 under the action of gravity, and the liquid taking operation of the liquid storage tank 4 can be finished.
Optionally, the liquid outlet pipe 30 is provided with a refrigerant pump 6, the liquid outlet pipe 30 between the refrigerant pump 6 and the air supply tank 5 is provided with a fourth control valve 84, and the liquid outlet pipe 30 between the refrigerant pump 6 and the liquid storage tank 4 is provided with a fifth control valve 85. Thus, through the operation of the refrigerant pump 6, the embodiment of the disclosure can utilize the liquid storage tank 4 to replenish the liquid to the gas supply tank 5, so that the gas supply operation to the gas suspension compressor 1 can be rapidly realized when the unit is restarted.
Optionally, the installation position of the liquid storage tank 4 is close to the installation position of the refrigerant pump 6. Thus, the resistance loss between the two can be reduced, and the refrigerant pump 6 can rapidly pump the liquid refrigerant.
Alternatively, a heating device 7 is provided in the supply tank 5, and the heating device 7 is configured to heat the liquid refrigerant in the supply tank 5. Thus, the liquid refrigerant in the air supply tank 5 can be converted into the gaseous refrigerant by the operation of the heating device 7, and the air supply operation of the air suspension compressor 1 can be realized.
Optionally, the heating device 70 is a heating rod. It is to be understood that the form of the heating device 70 is not exclusive, and the heating device 70 may be a heater, an electromagnetic heating device, or other elements having a heating function. In this way, the embodiment of the present disclosure can convert the liquid refrigerant in the gas supply tank 5 into the gaseous refrigerant by using the heating device 70, thereby implementing the gas supply operation of the gas suspension compressor 1.
Optionally, as shown in fig. 2, the air supply system of the air suspension compressor further includes a third bypass line 503. One end of the third bypass line 503 is communicated with the refrigerant pump 6, and the other end is communicated with the second liquid taking line 202, and the seventh control valve 87 is disposed on the third bypass line 503. Thus, by opening the seventh control valve 87, the disclosed embodiment can control the corresponding third bypass line 503 to conduct.
Therefore, the refrigerant pump 6 can not only take liquid from the liquid storage tank 4, but also take liquid from the evaporator 3, and the flexibility of liquid supplement of the gas supply tank 5 is improved.
Optionally, as shown in fig. 3, the air supply system of the air suspension compressor further includes a second bypass line 502. One end of the second bypass line 502 is communicated with the refrigerant pump 6, the other end is communicated with the first liquid taking line 201, and the second bypass line 502 is provided with the sixth control valve 86. Thus, by opening the sixth control valve 86, the disclosed embodiment can control the corresponding second bypass line 502 to conduct. Therefore, the refrigerant pump 6 can not only take liquid from the liquid storage tank 4, but also take liquid from the condenser 2, and the flexibility of liquid supplement of the gas supply tank 5 is improved.
Optionally, as shown in fig. 4, the air supply system of the air suspension compressor further includes a second bypass line 502 and a third bypass line 503. One end of the second bypass line 502 is communicated with the refrigerant pump 6, the other end is communicated with the first liquid taking line 201, and the second bypass line 502 is provided with the sixth control valve 86. One end of the third bypass line 503 is communicated with the refrigerant pump 6, the other end is communicated with the second liquid taking line 202, and the third bypass line 503 is provided with a seventh control valve 87. Thus, by opening the sixth control valve 86 and the seventh control valve 87, the second bypass line 502 and the third bypass line 503 can be controlled to be communicated. Therefore, the refrigerant pump 6 can not only take liquid from the liquid storage tank 4, but also take liquid from the condenser 2 and the evaporator 3, and the flexibility of liquid supplement of the gas supply tank 5 is improved.
Optionally, as shown in fig. 5, the air supply system of the air suspension compressor further includes a return air line 60 and a cooling line 70. One end of the return gas pipeline 60 is communicated with the gas suspension compressor 1, and the other end is communicated with the evaporator 3. One end of the cooling line 70 is in communication with the gas suspension compressor 1 and the other end is in communication with the condenser 2. In the figure, arrows indicate possible refrigerant flow directions during unit operation. Thus, the exhaust line 101, the cooling line 70, the return line 60, and the intake line 102 can form one communication circuit. The refrigerant from the condenser 2 enters the inner cavity of the air suspension compressor 1 through the cooling electronic expansion valve to cool the internal motor. Through the opening degree of the electronic expansion valve on the PID adjusting cooling circuit, the temperature of the motor of the compressor can be guaranteed to be always in a reasonable interval. Therefore, the service life of the air suspension compressor 1 can be prolonged, and the reliability of the unit in operation can be improved.
Optionally, the gas supply system of the gas suspension compressor further comprises a liquid level meter and a pressure sensor. The liquid level meter includes a first liquid level meter 91, a second liquid level meter 92 and a third liquid level meter 93, the first liquid level meter 91 is arranged in the evaporator 3, the second liquid level meter 92 is arranged in the liquid storage tank 4, and the third liquid level meter 93 is arranged in the air supply tank 5. The pressure sensors include a first pressure sensor 94, a second pressure sensor 95, a third pressure sensor 96 and a fourth pressure sensor 97, the first pressure sensor 94 is disposed on the return air line 60, the second pressure sensor 95 is disposed on the air supply tank 5, the third pressure sensor 96 is disposed on the liquid storage tank 4, and the fourth pressure sensor 97 is disposed on the evaporator 3. Therefore, by detecting the liquid level and the pressure of each working component, the embodiment of the disclosure can plan a reasonable liquid supplementing path and execute a corresponding gas supply scheme by combining with actual working conditions. Therefore, the liquid refrigerant in the whole system can be kept sufficient all the time, and the long-time dry rotation of related parts due to insufficient refrigerant quantity is avoided. And then can improve the life of the working part in the air supply system, be favorable to promoting the reliability when the unit starts the operation.
Alternatively, the first control valve 81, the second control valve 82, and the third control valve 83 are solenoid valves. Therefore, by controlling the opening and closing of each electromagnetic valve, the embodiment of the disclosure can control the corresponding pipeline to be connected or disconnected, thereby realizing the control of the liquid taking path of the liquid storage tank 4.
Alternatively, the fourth control valve 84, the fifth control valve 85, the sixth control valve 86, and the seventh control valve 87 are electronic expansion valves. In this way, by controlling the opening degree of each electronic expansion valve, the embodiment of the present disclosure can accurately control the flow rate on the corresponding pipeline, thereby realizing the control of the fluid replenishing path and the fluid replenishing amount of the air supply tank 5.
Optionally, the air supply system of the air suspension compressor further comprises a first check valve 89, a second check valve 810 and a third check valve 811. The first check valve 89 is disposed on the liquid outlet pipe 30 between the refrigerant pump 6 and the gas supply tank 5, the second check valve 810 is disposed on the first liquid taking pipe 201, and the third check valve 811 is disposed on the second liquid taking pipe 202. Like this, this disclosed embodiment can avoid the refrigerant backward flow to cause the air feed not enough, also can further promote the reliability of unit operation simultaneously.
The embodiment of the disclosure provides a refrigerating unit, which comprises the air supply system of the air suspension compressor.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An air supply system for an air suspension compressor, comprising:
a gas suspension compressor;
the circulating main loop is provided with a condenser and an evaporator, the condenser is communicated with an exhaust port of the gas suspension compressor through an exhaust pipeline, and the evaporator is communicated with an air suction port of the gas suspension compressor through an air suction pipeline;
the liquid storage tank is respectively communicated with the condenser and the evaporator through a plurality of liquid taking pipelines;
and the air supply tank is communicated with the liquid storage tank through a liquid outlet pipeline and is communicated with an air supply port of the air suspension compressor through an air supply pipeline.
2. The gas supply system of claim 1, wherein the liquid extraction line comprises:
one end of the first liquid taking pipeline is communicated with the condenser, the other end of the first liquid taking pipeline is communicated with the liquid storage tank, and the first liquid taking pipeline is provided with a first control valve;
and one end of the second liquid taking pipeline is communicated with the evaporator, the other end of the second liquid taking pipeline is communicated with the liquid storage tank, and a second control valve is arranged on the second liquid taking pipeline.
3. The gas supply system of claim 2, further comprising:
and one end of the first bypass pipeline is communicated with the liquid storage tank, the other end of the first bypass pipeline is communicated with the air suction pipeline, and the first bypass pipeline is provided with a third control valve.
4. The air supply system according to claim 2, wherein the installation height of the liquid storage tank is lower than that of the evaporator, so that the liquid refrigerant in the evaporator flows into the liquid storage tank under the action of gravity when the second liquid taking pipeline is conducted.
5. The gas supply system according to claim 2, wherein the liquid outlet pipe is provided with a refrigerant pump, the liquid outlet pipe between the refrigerant pump and the gas supply tank is provided with a fourth control valve, and the liquid outlet pipe between the refrigerant pump and the liquid storage tank is provided with a fifth control valve.
6. The air supply system according to claim 5, further comprising:
one end of the second bypass pipeline is communicated with the refrigerant pump, the other end of the second bypass pipeline is communicated with the first liquid taking pipeline, and a sixth control valve is arranged on the second bypass pipeline; and/or the presence of a gas in the atmosphere,
and one end of the third bypass pipeline is communicated with the refrigerant pump, the other end of the third bypass pipeline is communicated with the second liquid taking pipeline, and the third bypass pipeline is provided with a seventh control valve.
7. The gas supply system according to any one of claims 1 to 6, wherein a heating device is provided in the gas supply tank, the heating device being configured to heat a liquid refrigerant in the gas supply tank.
8. The gas supply system according to any one of claims 1 to 6, further comprising:
one end of the air return pipeline is communicated with the air suspension compressor, and the other end of the air return pipeline is communicated with the evaporator;
and one end of the cooling pipeline is communicated with the gas suspension compressor, and the other end of the cooling pipeline is communicated with the condenser.
9. The air supply system according to claim 8, further comprising:
the liquid level meter comprises a first liquid level meter, a second liquid level meter and a third liquid level meter, the first liquid level meter is arranged on the evaporator, the second liquid level meter is arranged on the liquid storage tank, and the third liquid level meter is arranged on the gas supply tank;
pressure sensor, including first pressure sensor, second pressure sensor, third pressure sensor and fourth pressure sensor, first pressure sensor set up in the return air pipeline, second pressure sensor set up in the air feed jar, third pressure sensor set up in the liquid storage pot, fourth pressure sensor set up in the evaporimeter.
10. A refrigeration unit comprising an air supply system of an air suspension compressor as claimed in any one of claims 1 to 9.
CN202222050014.7U 2022-08-04 2022-08-04 Air supply system of air suspension compressor and refrigerating unit Active CN218439651U (en)

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CN202222050014.7U CN218439651U (en) 2022-08-04 2022-08-04 Air supply system of air suspension compressor and refrigerating unit

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Application Number Priority Date Filing Date Title
CN202222050014.7U CN218439651U (en) 2022-08-04 2022-08-04 Air supply system of air suspension compressor and refrigerating unit

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