CN117606170A - Air supply device for static pressure air suspension compressor and air conditioner - Google Patents
Air supply device for static pressure air suspension compressor and air conditioner Download PDFInfo
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- CN117606170A CN117606170A CN202311351455.3A CN202311351455A CN117606170A CN 117606170 A CN117606170 A CN 117606170A CN 202311351455 A CN202311351455 A CN 202311351455A CN 117606170 A CN117606170 A CN 117606170A
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- air
- refrigerant
- supply tank
- air supply
- pressure
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- 239000000725 suspension Substances 0.000 title claims abstract description 90
- 230000003068 static effect Effects 0.000 title claims abstract description 49
- 239000003507 refrigerant Substances 0.000 claims abstract description 142
- 238000010438 heat treatment Methods 0.000 claims abstract description 79
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 230000006698 induction Effects 0.000 claims description 24
- 238000009530 blood pressure measurement Methods 0.000 claims description 23
- 238000005259 measurement Methods 0.000 claims description 8
- 230000005674 electromagnetic induction Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013526 supercooled liquid Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/057—Bearings hydrostatic; hydrodynamic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The application relates to intelligent household electrical appliances technical field discloses a gas supply unit for static pressure gas suspension compressor, include: the air supply tank comprises an air inlet and an air outlet, the air inlet is communicated with the refrigerant liquid supply assembly through a refrigerant branch, and the air outlet is connected with an air suspension bearing of the static air suspension compressor and is configured to convey gaseous refrigerant to the air suspension bearing; and the electromagnetic heating module is arranged in the air supply tank and is configured to generate heat in a controlled manner so as to heat the refrigerant in the air supply tank. Through setting up the air feed tank at the input of compressor gas suspension bearing to utilize electromagnetic heating module to heat the refrigerant in the air feed tank, make air feed pressure promote, and form stable air feed pressure difference, provide good condition for static pressure gas suspension compressor gas suspension bearing's steady operation, effectively improved heating efficiency, guaranteed that the whole operation of device is reliable and stable. The application also discloses an air conditioner.
Description
The present application is a divisional application of chinese patent application with application number 202010462033.3, application date 2020, 5 and 27, and application name "air supply device for static pressure air suspension compressor" for air conditioner.
Technical Field
The application relates to the technical field of compressors, for example, to an air supply device for a static pressure air suspension compressor and an air conditioner.
Background
The air suspension compressor is based on the working principle of air bearing suspension, and the air model formed by air extrusion is used for achieving the supporting and lubricating effects, and the improvement of the air pressure of the centrifugal compressor is realized by the high-speed rotation of the impeller and the diffusion of the diffuser. The gas suspension bearing has simple structure and high rotation precision, and is an ideal component under the working condition of high speed operation and high temperature. The start pressure difference is needed before the air suspension compressor is started, and the air supply pressure difference is needed to be provided all the time to keep running in the running process, so that the stable control of the air supply pressure is the key of the system running.
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, the air supply pressure difference is generated by heating the suction pipe of the compressor. Since the distance from the gas flow to the air suction port of the compressor is short, there is a problem that the heating is insufficient, and a stable air supply pressure difference cannot be provided.
Disclosure of Invention
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, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.
The embodiment of the disclosure provides an air supply device for a static pressure air suspension compressor and an air conditioner, so as to solve the problems of insufficient heating and unstable air supply pressure difference when an air suction pipeline of the compressor is heated.
In some embodiments, the air supply device for a static pressure air suspension compressor includes: the air supply tank comprises an air inlet and an air outlet, the air inlet is communicated with the refrigerant liquid supply assembly through a refrigerant branch, and the air outlet is connected with an air suspension bearing of the static pressure air suspension compressor and is configured to convey gaseous refrigerant to the air suspension bearing; and the electromagnetic heating module is arranged in the air supply tank and is configured to generate heat in a controlled manner so as to heat the refrigerant in the air supply tank. In some embodiments, the air conditioner includes: the air supply device for the static pressure air suspension compressor comprises the static pressure air suspension compressor and the air supply device for the static pressure air suspension compressor.
The air supply device and the air conditioner for the static pressure air suspension compressor provided by the embodiment of the disclosure can realize the following technical effects:
the air supply tank is arranged at the input end of the air suspension bearing of the compressor, and the electromagnetic heating module is used for heating the refrigerant in the air supply tank, so that the air supply pressure is improved, a stable air supply pressure difference is formed, and good conditions are provided for the stable operation of the air suspension bearing of the static pressure air suspension compressor. Through electromagnetic heating module for liquid refrigerant in the air feed jar obtains fully heating, has effectively improved heating efficiency, guarantees that the whole operation of device is reliable and stable.
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 and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:
FIG. 1 is a schematic diagram of an air supply arrangement for a static air suspension compressor according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of an apparatus structure of a gas supply tank in an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of another apparatus configuration of a gas supply tank in an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of the connection of a gas supply for a static pressure gas suspension compressor provided by an embodiment of the present disclosure;
fig. 6 is a schematic diagram illustrating connection of a refrigerant circulation line of an air conditioner according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of a connection relationship of an air conditioner according to an embodiment of the present disclosure.
Reference numerals:
10: a gas supply tank; 11: an exhaust port; 12: a liquid inlet; 13: a liquid level sensor; 20: an air suspension bearing; 30: a refrigerant liquid supply assembly; 31: a refrigerant branch; 40: an electromagnetic heating module; 41: an induction coil; 42: a magnetizer; 43: a buckle; 44: a clamping seat; 51: a first pressure measurement module; 52: a second pressure measurement module; 60: a controller; 70: a liquid level sensor; 81: an exhaust port of the static pressure gas suspension compressor; 82: a condenser; 83: an electronic expansion valve; 84: an evaporator; 85: static pressure gas suspension compressor air suction port; 86: a first electromagnetic valve; 87: a second electromagnetic valve; 88: a refrigerant pump; 89: a filter; 90: a one-way valve; 91: a first branch; 92: a second branch.
Detailed Description
So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. 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 still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.
The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.
In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may 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. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.
The term "plurality" means two or more, unless otherwise indicated.
In the embodiment of the present disclosure, the character "/" indicates that the front and rear objects are an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.
It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.
As shown in connection with fig. 1-4, embodiments of the present disclosure provide a gas supply apparatus for a static-pressure gas suspension compressor, including a gas supply tank 10 and an electromagnetic heating module 40. The gas supply tank 10 includes a liquid inlet 12 and a gas outlet 11, the liquid inlet 12 is communicated with the refrigerant liquid supply assembly 30 through a refrigerant branch 31, the gas outlet 11 is connected with a gas suspension bearing 20 of the static gas suspension compressor, and is configured to convey gaseous refrigerant to the gas suspension bearing 20; the electromagnetic heating module 40 is provided to the air supply tank 10 and configured to be controlled to generate heat to heat the refrigerant in the air supply tank 10.
Here, the electromagnetic heating module 40 converts electric energy into magnetic energy by using an electromagnetic induction principle, so that magnetically conductive materials such as a metal pipe or a metal container actively generate heat under electromagnetic induction, thereby heating the object to be heated. Compared with the traditional resistance heating, the electromagnetic reaction heating has higher heat conversion rate and is more efficient and energy-saving. In this scheme, the air supply tank 10 is used for providing high-pressure air for the air suspension bearing 20 of the air suspension compressor, and after the liquid refrigerant in the refrigerant liquid supply assembly 30 enters the air supply tank 10, the liquid refrigerant is heated by the electromagnetic heating module 40 to form high-pressure air, so as to increase the air supply pressure and provide a starting pressure difference for the compressor.
By adopting the embodiment of the disclosure, the air supply tank 10 is arranged at the input end of the air suspension bearing 20 of the compressor, and the electromagnetic heating module 40 is utilized to heat the refrigerant in the air supply tank 10, so that the air supply pressure is increased, a stable air supply pressure difference is formed, and a good condition is provided for the stable operation of the static pressure air suspension compressor. Through electromagnetic heating module 40 for the liquid refrigerant in the air feed tank 10 obtains abundant heating, has effectively improved heating efficiency, guarantees that the whole operation of device is reliable and stable.
Optionally, the electromagnetic heating module 40 comprises an induction coil 41 and a magnetizer 42; the induction coil 41 is connected to a power source and configured to generate an alternating magnetic field in an energized state; the magnetizer 42 is arranged inside the air supply tank 10 and is positioned in the alternating magnetic field; and is configured to generate eddy currents under the influence of the alternating magnetic field.
Between the induction coil 41 and the magnetizer 42, the electric energy is converted into thermomagnetic energy by utilizing the magnetic induction principle, so that the magnetizer 42 actively heats under electromagnetic induction, thereby realizing the heating of the surrounding refrigerant. Compared with the traditional electric heating mode, the electromagnetic reaction heating has higher heat conversion rate and is more efficient and energy-saving.
The induction coil 41 may be provided in contact with the gas supply tank 10 or may be provided in a non-contact manner, and the generation of eddy currents by the magnetizer 42 in the energized state of the induction coil 41 may be achieved by providing the magnetizer 42 in the alternating magnetic field of the induction coil 41.
By adopting the air supply tank 10 provided by the embodiment of the disclosure, the induction coil 41 is arranged to generate an alternating magnetic field, the magnetizer 42 positioned in the alternating magnetic field is arranged in the air supply tank 10, the alternating current generated by a power supply generates the alternating magnetic field through the induction coil 41 by utilizing the electromagnetic induction heating principle, the alternating magnetic force line of the magnetic field cuts the magnetizer 42 with a resistor to generate vortex, resistance heat is further generated, the liquid refrigerant at the bottom of the air supply tank 10 is heated by utilizing the heat of the resistance heat, so that high-pressure gaseous refrigerant is generated, the air supply pressure of the air supply tank 10 is improved, and air supply pressure difference exists when the gaseous refrigerant enters the compressor, so that the quick start of the static pressure air suspension compressor can be realized.
Alternatively, as shown in fig. 2 and 3, the induction coil 41 is sleeved on the outer wall of the air supply tank 10. Here, the induction coil 41 is disposed in contact with the gas supply tank 10. By disposing the induction coil 41 on the outer wall of the air supply tank 10, the magnetizer 42 in the air supply tank 10 is disposed in the alternating magnetic field generated by the induction coil 41, so that the magnetizer 42 generates heat to heat the refrigerant in the air supply tank 10 in the energized state of the induction coil 41, and the air supply pressure is rapidly increased.
Alternatively, as shown in fig. 4, an induction coil 41 is provided below the gas supply tank 10 by a connection means. Here, the induction coil 41 may be disposed in contact with the air supply tank 10 or may be disposed in a non-contact manner. In this case, the induction coil 41 may be in the form of a coil disk, and the disk may be provided below or under the gas supply tank 10. The induction coil 41 is detachably arranged below the air supply tank 10 through a connecting device, and can be detached according to seasons and temperature changes. The connection means may be a snap-on or screw-on means. In an embodiment of the present disclosure, the connection device is a clamping device, including: a buckle 43 provided on the top of the induction coil 41; the fastening seat 44 is disposed at the bottom of the air supply tank 10 and has a fastening slot matched with the fastening button 43. The detachable connection of the induction coil 41 with the air supply tank 10 is achieved by means of a connection device.
Alternatively, the magnetizer 42 is provided at the bottom inside the air supply tank 10. By disposing the magnetizer 42 at the bottom of the air supply tank 10, the liquid refrigerant at the bottom of the air supply tank 10 can be directly heated by the resistance heat generated under the electromagnetic induction principle in the alternating magnetic field. Compared with the electromagnetic induction heating device or the electric heating device arranged on the refrigerant flowing pipeline in the related art, the magnetizer 42 is arranged in the air supply tank 10 in the embodiment, so that the direct heating of the refrigerant in the air supply tank 10 is realized; further, in this embodiment, the magnetizer 42 is disposed at the bottom of the air supply tank 10, so that the heat generated by the magnetizer can firstly heat the liquid refrigerant at the bottom of the air supply tank 10, thereby generating high-pressure gaseous refrigerant, increasing the air supply pressure of the air supply tank 10, and enabling the air supply pressure difference to exist when the gaseous refrigerant enters the compressor, so as to realize the rapid start of the static pressure air suspension compressor.
Optionally, a gap exists between the outer wall of the magnetizer 42 and the inner wall of the air supply tank 10. So that the contact area between the magnetizer 42 and the refrigerant increases, and heat can be directly diffused into the refrigerant. Alternatively, the magnetic conductor 42 is a rectangular parallelepiped or hollow cylinder. When the magnetizer 42 is a rectangular parallelepiped, it has a plurality of outer surfaces contacting with the refrigerant, and has a regular and stable structure, and is not easy to displace, so that it is convenient to be disposed inside the air supply tank 10. When the magnetizer 42 is a hollow cylinder, its outer shape is adapted to the structure of the air supply tank 10, and the hollow structure can increase the contact area with the refrigerant, thereby further improving the heating effect. Alternatively, the magnetic conductor 42 is a martensitic steel pipe.
Optionally, the air supply tank 10 further includes a liquid level sensing module disposed on the magnetizer 42 or on the inner wall of the air supply tank 10 and connected to a power source; and is configured to control the power supply to be de-energized when the liquid level is below the first liquid level threshold. Specifically, the liquid level sensing module may be disposed at the top of the magnetizer 42, and the liquid level sensing sheet thereof is closely disposed with the side surface of the magnetizer 42. Optionally, a liquid level sensing piece of the liquid level sensing module is disposed in the middle of the side surface of the magnetizer 42. In this way, when the refrigerant level in the gas supply tank 10 drops to the top of the exposed magnetizer 42, the liquid level sensing module starts to detect the liquid level height, and when the liquid level is lower than the first liquid level threshold, i.e. the liquid level is lower than the setting position of the liquid level sensing piece, the power supply is controlled to be powered off. At this time, the liquid level in the air supply tank 10 is low, and when the control power is turned on, the heat generated by the magnetizer 42 is large, and the heat that can be absorbed by the refrigerant with a small volume is also small, which is easy to cause a fault.
By adopting the air supply device for the static pressure air suspension compressor provided by the embodiment of the disclosure, the induction coil 41 is arranged to generate an alternating magnetic field, the magnetizer 42 positioned in the alternating magnetic field is arranged in the air supply tank 10, the alternating current generated by the power supply generates the alternating magnetic field through the induction coil 41 by utilizing the electromagnetic induction heating principle, the alternating magnetic force line of the magnetic field cuts the magnetizer 42 with a resistor to generate vortex, resistance heat is further generated, the liquid refrigerant at the bottom of the air supply tank 10 is heated by utilizing the heat of the resistance heat, and the liquid refrigerant is evaporated into gaseous refrigerant to enter the compressor. The heating efficiency can be effectively improved, the air supply pressure of the air supply tank 10 is improved, so that the air supply pressure difference exists when the gaseous refrigerant enters the compressor, and the static pressure air suspension compressor can be rapidly started.
As shown in fig. 5, the embodiment of the present disclosure also provides a gas supply apparatus for a static pressure gas suspension compressor, including a gas supply tank 10 and an electromagnetic heating module 40. The gas supply tank 10 comprises a liquid inlet 12 and a gas outlet 11, the gas outlet 11 is connected with the gas suction port of the static pressure gas suspension compressor, and the liquid inlet 12 is communicated with the refrigerant liquid supply assembly 30 through a refrigerant branch 31; the electromagnetic heating module 40 is provided to the air supply tank 10 and configured to be controlled to generate heat to heat the refrigerant in the air supply tank 10.
Optionally, a first pressure measurement module 51, a second pressure measurement module 52, and a controller 60 are also included. Wherein, the first pressure measuring module 51 is arranged at the exhaust port 11 of the gas supply tank 10 or at the input end of the gas suspension bearing 20, and is used for measuring the gas supply pressure of the gaseous refrigerant; the second pressure measuring module 52 is arranged at the air suction port of the compressor and is used for measuring the suction pressure of the compressor; the controller 60 is connected to the first pressure measuring module 51, the second pressure measuring module 52 and the electromagnetic heating module 40, respectively, and is configured to control the heating power of the electromagnetic heating device according to the difference between the measured results of the first pressure measuring module 51 and the second pressure measuring module 52.
Here, the first pressure measurement module 51 may be a pressure gauge valve that measures the supply pressure of the output gaseous refrigerant of the gas supply tank 10 through the gas outlet 11 provided in the gas supply tank 10, or that measures the supply pressure of the output gas of the gas supply tank 10 to the gas suspension bearing 20 provided at the input end of the gas suspension bearing 20. The second pressure measurement module 52 may be a pressure gauge valve, and may be provided in the suction port of the compressor to measure the suction pressure of the compressor. The controller 60 controls the current and/or voltage of the electromagnetic heating device according to the difference between the measurement results of the first pressure measurement module 51 and the second pressure measurement module 52, i.e., according to the difference between the supply pressure and the suction pressure, so as to change the heating power of the electromagnetic heating device.
Alternatively, the controller 60 is configured to reduce the heating power of the electromagnetic heating module 40 when the difference between the measurement results of the first pressure measurement module 51 and the second pressure measurement module 52 is greater than or equal to the first threshold, i.e., the difference between the supply pressure and the suction pressure is greater than or equal to the first threshold; when the difference between the measurement results of the first pressure measurement module 51 and the second pressure measurement module 52 is smaller than the first threshold, that is, the difference between the supply pressure and the suction pressure is smaller than the first threshold, the heating power of the electromagnetic heating module 40 is increased.
Here, when the first pressure measurement module 51 is provided at the exhaust port 11 of the air supply tank 10, the difference in measurement results is the difference in the exhaust pressure of the air supply to the air suspension bearing 20 at the air supply tank 10 and the compressor suction pressure; when the difference is greater than or equal to the first threshold, indicating that the supply pressure is too high, the controller 60 reduces the heating power of the electromagnetic heating module 40 to slow down the output of the gaseous refrigerant; when the difference is smaller than the first threshold, the air supply pressure is smaller, and the controller 60 increases the heating power of the electromagnetic heating module 40 to accelerate the output of the gaseous refrigerant.
When the first pressure measuring module 51 is provided at the input of the air suspension bearing 20, the difference in measurement results is the difference between the air supply pressure at the input of the air suspension bearing 20 and the suction pressure at the suction port of the compressor. When the difference is greater than or equal to the first threshold, indicating that the supply pressure is too high, the controller 60 reduces the heating power of the electromagnetic heating module 40 to slow down the output of the gaseous refrigerant; when the difference is smaller than the first threshold, the air supply pressure is smaller, and the controller 60 increases the heating power of the electromagnetic heating module 40 to accelerate the output of the gaseous refrigerant.
Optionally, the value of the first threshold is in the range of 0.45Mpa-0.65Mpa, specifically 0.45Mpa, 0.50Mpa, 0.55Mpa, 0.60Mpa or 0.65Mpa.
By adopting the air supply device for the static pressure air suspension compressor, which is provided by the embodiment of the disclosure, the air supply tank 10 is arranged at the input end of the air suspension bearing 20 of the compressor, and the electromagnetic heating module 40 is utilized to heat the refrigerant in the air supply tank 10, so that the air supply pressure is increased, stable air supply pressure difference is formed, and good conditions are provided for the stable operation of the static pressure air suspension compressor. Through electromagnetic heating module 40 for the liquid refrigerant in the air feed tank 10 obtains abundant heating, has effectively improved heating efficiency, guarantees that the whole operation of device is reliable and stable. Meanwhile, by detecting the air supply pressure of the gaseous refrigerant and adjusting the power of the electromagnetic heating module 40 according to the difference of the air supply pressure differences, the starting pressure difference for quick starting and the stable air supply pressure difference are provided for the air suspension compressor, and the reliability of the whole operation of the device is ensured.
The embodiment of the disclosure also provides an air conditioner, as shown in fig. 6 and 7, comprising a static pressure air suspension compressor and the air supply device for the static pressure air suspension compressor. The air conditioner includes a refrigerant circulation circuit formed by connecting a static pressure air suspension compressor, a four-way valve, a condenser 82 and an evaporator 84 through pipes. The exhaust port 11 of the air supply tank 10 is connected with the air suspension bearing input end of the static air suspension compressor through a pipeline.
By arranging the air supply device for the air suspension bearing of the static pressure air suspension compressor, the air outlet 11 of the air supply tank 10 is connected with the air suspension bearing 20 of the static pressure air suspension compressor, high-pressure air is supplied to the air suspension bearing 20 of the air suspension compressor, and after liquid refrigerant in the refrigerant liquid supply assembly 30 enters the air supply tank 10, the air supply tank is heated by the electromagnetic heating module 40 to form high-pressure air, so that the air supply pressure is improved, and a starting pressure difference is provided for the compressor.
Optionally, the air conditioner further includes a refrigerant pump 88 disposed between the liquid inlet 12 of the gas supply tank 10 and the refrigerant branch 31. In this way, after the refrigerant enters the refrigerant pump 88 from the refrigerant branch 31, the refrigerant is delivered to the air supply tank 10 by the refrigerant pump 88, so that the refrigerant can be pressurized in the delivery process, and the starting pressure is provided for the air supply tank 10.
Optionally, a filter 89 is disposed at the input end of the refrigerant pump 88, and is used for filtering the refrigerant flowing in the pipeline, so as to prevent the input section of the refrigerant pump 88 from being dirty and blocked, thereby preventing system failure and playing a role in filtering protection. Optionally, the refrigerant pump 88 is connected to the liquid level sensor 13 and configured to shut off the refrigerant pump 88 and stop delivering refrigerant to the gas supply tank 10 when the liquid level is higher than or equal to the second liquid level threshold; when the liquid level is lower than the second liquid level threshold, the refrigerant pump 88 is turned on, and the refrigerant is continuously supplied to the supply tank 10. In this way, the start and stop of the refrigerant pump 88 is controlled according to the liquid level, and insufficient heating due to excessive refrigerant in the gas supply tank 10 can be prevented, and the gas supply pressure cannot be provided.
Optionally, a check valve 90 is provided between the output of the refrigerant pump 88 and the gas supply tank 10, so that refrigerant can only flow from the refrigerant pump 88 to the gas supply tank 10. In this way, the refrigerant can be prevented from flowing back to the refrigerant pump 88 when the air pressure in the air supply tank 10 is large.
Optionally, the refrigerant liquid supply assembly 30 of the gas supply includes a condenser 82 of the air conditioner, and/or an evaporator 84. By providing the refrigerant branch 31 at the refrigerant outlets of the condenser 82 and the evaporator 84, part of the refrigerant in the refrigerant circulation loop enters the air supply tank 10 through the refrigerant branch 31 and participates in the process of providing the starting pressure difference and the air supply pressure difference for the static pressure air suspension compressor and the air supply tank 10.
Optionally, the refrigerant leg 31 includes a first leg 91 and a second leg 92. Wherein, the first branch 91 connects the liquid inlet of the gas supply tank 10 and the refrigerant outlet of the condenser 82; the second branch 92 connects the liquid inlet of the gas supply tank 10 with the refrigerant outlet of the evaporator 84. In this way, the condenser 82 and the evaporator 84 are independently supplied with refrigerant to the supply tank.
Optionally, the refrigerant branch 31 further includes: a first electromagnetic valve 86 provided between the liquid inlet 12 of the gas supply tank 10 and the condenser 82; the second electromagnetic valve 87 is provided between the liquid inlet 12 of the gas supply tank 10 and the evaporator 84. The source of the refrigerant entering the gas supply tank 10 can be controlled by switching on and off the first solenoid valve 86 and the second solenoid valve 87.
Alternatively, the first solenoid valve 86 and the second solenoid valve 87 are respectively connected to the controller 60, and are controlled to be turned on and off by the controller 60. When the first electromagnetic valve 86 is opened and the second electromagnetic valve 87 is closed, the refrigerant entering the gas supply tank 10 comes from the condenser 82, so that the loss of the refrigerant can be reduced, the refrigerant at the outlet of the condenser 82 has a little supercooling degree, and the good operation condition of the refrigerant pump 88 can be ensured; when the first electromagnetic valve 86 is closed and the second electromagnetic valve 87 is opened, the refrigerant entering the gas supply tank 10 comes from the evaporator 84, so that the refrigerant pump 88 can be ensured to have a larger gravity pressure head when the gas supply tank is started, and the operation condition of the refrigerant pump 88 is good. In this way, the start pressure of the air supply tank 10 can come from two different positions, and meanwhile, different sources of refrigerant can ensure that the refrigerant pump 88 operates safely and reliably, so that the air supply tank 10 can be stably started to provide air supply pressure for the air suspension bearing 20.
The embodiments described above are described with reference to specific embodiments, and the air conditioner provided in the embodiments of the present disclosure is a central air conditioner. Specifically, the air conditioner includes a static pressure air suspension compressor, and the refrigerant enters the condenser 82 from the exhaust port 11 of the static pressure air suspension compressor, enters the main electronic expansion valve 83 through the output end of the condenser 82, enters the evaporator 84 after being output from the main electronic expansion valve 83, and enters the air suction port 85 of the static pressure air suspension compressor through the output end of the evaporator 84 to form circulation of the refrigerant.
The air conditioner further comprises an air supply device for the static pressure air suspension compressor. The air outlet 11 of the air supply tank 10 is connected to the input end of the air suspension bearing 20 of the static pressure air suspension compressor, and supplies gaseous refrigerant to the air suspension bearing 20, and heats the liquid refrigerant in the air supply pipe through the electromagnetic heating module 40 arranged on the air supply tank 10, so as to improve the air supply pressure of the air supply tank 10 for inputting the gaseous refrigerant to the air suspension bearing 20.
Before the static pressure gas suspension compressor is operated, a steady start pressure difference is required, which is expressed as the difference between the gas supply pressure of the gas suspension bearing 20 and the suction pressure of the suction port of the compressor. The liquid refrigerant in the gas supply tank 10 is heated by the electromagnetic heating module 40, so that the gas supply pressure is raised, and a stable gas supply pressure difference is formed, thereby providing good conditions for the stable operation of the static pressure gas suspension compressor.
Here, the refrigerant in the air supply tank 10 comes from two branches, the first branch 91 connects the liquid inlet 12 of the air supply tank 10 and the refrigerant outlet of the condenser 82, and part of the supercooled liquid refrigerant in the condenser 82 is introduced into the refrigerant branch 31, and is delivered and pressurized by the refrigerant pump 88 and then enters the air supply tank 10; the second branch 92 connects the gas supply tank 10 and the refrigerant outlet of the evaporator 84, and introduces part of the liquid refrigerant in the lower part of the cylinder of the evaporator 84 into the refrigerant branch 31, and enters the gas supply tank 10 after being pressurized by the delivery of the refrigerant pump 88. Here, the first branch 91 and the second branch 92 are provided with a first solenoid valve 86 and a second solenoid valve 87, respectively, for controlling the source of the refrigerant entering the gas supply tank 10.
Specifically, the on-off of the first solenoid valve 86 and the second solenoid valve 87 is controlled as follows:
when the static pressure of the air supply tank 10 starts, the first electromagnetic valve 86 is controlled to be closed, the second electromagnetic valve 87 is opened, the refrigerant in the evaporator 84 is conveyed to the air supply tank 10, and the start and stop of the refrigerant pump 88 are controlled according to the liquid level in the air supply tank 10; acquiring a difference value between the air supply pressure and the air suction pressure, and controlling the heating power of the electromagnetic heating module 40 according to the difference value;
after the air supply tank 10 is started and operated for a set time, the first electromagnetic valve 86 is controlled to be opened, the second electromagnetic valve 87 is closed, the refrigerant in the condenser 82 is conveyed to the air supply tank 10, and the start and stop of the refrigerant pump 88 are controlled according to the liquid level in the air supply tank 10; the difference between the supply air pressure and the suction air pressure is obtained, and the heating power of the electromagnetic heating module 40 is controlled according to the difference.
For the central air conditioner, the evaporator 84 is located above the condenser 82, and refrigerant is input to the air supply tank 10 through the evaporator 84 during the startup process, so that the refrigerant pump 88 can be ensured to have a larger gravity head during the startup process, and good operation conditions can be maintained.
By adopting the air conditioner provided by the embodiment of the disclosure, the air supply tank 10 is arranged at the input end of the air suspension bearing 20 of the compressor, and the electromagnetic heating module 40 is utilized to heat the refrigerant in the air supply tank 10, so that the air supply pressure is improved, a stable air supply pressure difference is formed, and a good condition is provided for the stable operation of the static pressure air suspension compressor. Through electromagnetic heating module 40 for the liquid refrigerant in the air feed tank 10 obtains abundant heating, has effectively improved heating efficiency, guarantees that the whole operation of device is reliable and stable. On the other hand, according to different operation states, the condenser 82 or the evaporator 84 is used for providing the refrigerant for the air supply tank 10, so that the starting pressure of the air supply tank 10 can come from two different positions, and meanwhile, different sources of the refrigerant can ensure that the refrigerant pump 88 is safe and reliable to operate, so that the air supply tank 10 can be stably started to provide the air supply pressure for the air suspension bearing 20.
The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only 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. A gas supply apparatus for a static pressure gas suspension compressor, comprising:
the air supply tank comprises an air inlet and an air outlet, the air inlet is communicated with the refrigerant liquid supply assembly through a refrigerant branch, and the air outlet is connected with an air suspension bearing of the static pressure air suspension compressor and is configured to convey gaseous refrigerant to the air suspension bearing;
and the electromagnetic heating module is arranged in the air supply tank and is configured to generate heat in a controlled manner so as to heat the refrigerant in the air supply tank.
2. The air supply device according to claim 1, characterized by further comprising:
the first pressure measurement module is arranged at the exhaust port of the air supply tank or at the input end of the air suspension bearing;
and the second pressure measurement module is arranged at the air suction port of the compressor.
3. The air supply device according to claim 2, characterized by further comprising:
and the controller is respectively connected with the first pressure measurement module, the second pressure measurement module and the electromagnetic heating module and is configured to control the heating power of the electromagnetic heating device according to the difference value of the measurement results of the first pressure measurement module and the second pressure measurement module.
4. A gas supply device according to claim 3, wherein the controller is configured to:
when the difference value of the measurement results of the first pressure measurement module and the second pressure measurement module is larger than or equal to a first threshold value, reducing the heating power of the electromagnetic heating module;
and when the difference value of the measurement results of the first pressure measurement module and the second pressure measurement module is smaller than the first threshold value, the heating power of the electromagnetic heating module is increased.
5. A gas supply device according to any one of claims 1 to 4, wherein the electromagnetic heating module comprises:
an induction coil connected to a power source and configured to generate an alternating magnetic field in an energized state;
the magnetizer is arranged in the air supply tank and is positioned in the alternating magnetic field; and is configured to generate eddy currents under the influence of the alternating magnetic field.
6. An air conditioner, comprising:
a static pressure gas suspension compressor; and, a step of, in the first embodiment,
a gas supply for a static pressure gas suspension compressor as claimed in any one of claims 1 to 5.
7. The air conditioner as set forth in claim 6, further comprising:
the refrigerant pump is arranged between the liquid inlet of the gas supply tank and the refrigerant branch.
8. The air conditioner of claim 7, wherein the refrigerant liquid supply assembly comprises a condenser and/or an evaporator of the air conditioner.
9. The air conditioner as set forth in claim 8, wherein said refrigerant branch includes:
a first branch connecting a liquid inlet of the gas supply tank with a refrigerant outlet of the condenser;
and the second branch is connected with the liquid inlet of the gas supply tank and the refrigerant outlet of the evaporator.
10. The air conditioner as set forth in claim 9, wherein said refrigerant branch further comprises:
the first electromagnetic valve is arranged between the liquid inlet of the gas supply tank and the condenser;
the second electromagnetic valve is arranged between the liquid inlet of the gas supply tank and the evaporator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311351455.3A CN117606170A (en) | 2020-05-27 | 2020-05-27 | Air supply device for static pressure air suspension compressor and air conditioner |
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| CN202010462033.3A CN113803914B (en) | 2020-05-27 | 2020-05-27 | Air supply device for static pressure air suspension compressor and air conditioner |
| CN202311351455.3A CN117606170A (en) | 2020-05-27 | 2020-05-27 | Air supply device for static pressure air suspension compressor and air conditioner |
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| CN202010462033.3A Active CN113803914B (en) | 2020-05-27 | 2020-05-27 | Air supply device for static pressure air suspension compressor and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000220912A (en) * | 1998-11-25 | 2000-08-08 | Daikin Ind Ltd | Refrigerant heater |
| JP5546306B2 (en) * | 2009-03-25 | 2014-07-09 | キヤノン株式会社 | Static pressure gas bearing |
| CN105065453B (en) * | 2015-09-01 | 2017-06-27 | 中国计量学院 | A kind of hydrostatic gas-lubricated bearing and its application method with compound seal mode |
| CN105149621A (en) * | 2015-09-01 | 2015-12-16 | 上海大学 | Electric spindle supported by magnetic suspension and lambdoid-groove dynamic pressure and static pressure gas combined bearings |
| CN106015032B (en) * | 2016-06-28 | 2018-05-22 | 杭州万辰机电科技有限公司 | Centrifugal compressor |
| CN210345951U (en) * | 2019-06-13 | 2020-04-17 | 上海中金能源投资有限公司 | Gas suspension heat pump unit |
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| CN113803914B (en) | 2023-09-26 |
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