CN103727695B - turbo refrigerating machine - Google Patents
turbo refrigerating machine Download PDFInfo
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- CN103727695B CN103727695B CN201310485007.2A CN201310485007A CN103727695B CN 103727695 B CN103727695 B CN 103727695B CN 201310485007 A CN201310485007 A CN 201310485007A CN 103727695 B CN103727695 B CN 103727695B
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- sensor
- refrigerant
- condenser
- liquid level
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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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/053—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of turbine type
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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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/315—Expansion valves actuated by floats
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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
- F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
- F25B2341/06—Details of flow restrictors or expansion valves
- F25B2341/068—Expansion valves combined with a sensor
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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
- F25B2600/00—Control issues
- F25B2600/05—Refrigerant levels
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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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Abstract
The present invention relates to turbo refrigerating machine, be specifically related to can easily detect and regulate the turbo refrigerating machine of the refrigerant level of condenser, above-mentioned turbo refrigerating machine includes: compressor, including the impeller for compressing cold-producing medium；Condenser, for making the cold-producing medium flowed into from above-mentioned compressor and cooling water carry out heat exchange；Vaporizer, for making the cold-producing medium discharged from above-mentioned condenser and cold water carry out heat exchange；Expansion valve, is located between above-mentioned condenser and vaporizer；Plural sensor, the increase direction along refrigerant level is arranged at mutually different height, for detecting the refrigerant level of the inside of above-mentioned condenser；And control portion, the refrigerant level detected according to the sensor, regulate the aperture of above-mentioned expansion valve.
Description
Technical field
The present invention relates to turbo refrigerating machine, be specifically related to can easily detect and regulate the cold-producing medium of condenser
The turbo refrigerating machine of liquid level.
Background technology
Generally, turbo refrigerating machine as utilizing cold-producing medium to perform cold water and the equipment of heat exchange of cooling water,
Including compressor, vaporizer, condenser and expansion valve.
Above-mentioned compressor can include impeller (Impeller), cover (Shroud), variable diffuser
(Diffuser), wherein, impeller rotates by the driving force driving motor, and cover is used for housing impeller,
The kinetic energy of the variable diffuser fluid for discharging rotating along with impeller is converted into pressure energy.
As above-mentioned vaporizer and an embodiment of condenser, can have shell (Shell in pipe
Tube) structure, cold water and cooling water are respectively in the internal flow of pipe, and the inside of shell can house cold-producing medium.
Further, flow into cold water to above-mentioned vaporizer or discharge cold water, at above-mentioned vaporizer from above-mentioned vaporizer
Inside, above-mentioned cold-producing medium and cold water carries out heat exchange, and above-mentioned cold water is in the process by above-mentioned vaporizer
In cooled.
Further, flow into cold water to above-mentioned condenser or discharge cooling water, in above-mentioned condensation from above-mentioned condenser
The inside of device, above-mentioned cold-producing medium and cooling water carry out heat exchange, and above-mentioned cooling water is by above-mentioned condenser
During heated.
Further, the cold-producing medium housed in the inside of above-mentioned vaporizer and condenser can keep predetermined being wanted
The refrigerant level asked, and refrigerant level can be regulated by expansion valve.
On the other hand, when the turbo refrigerating machine initial stage starts, during load change or when design temperature changes,
The refrigerant level of above-mentioned condenser can change, and the refrigerant level of condenser can not keep the feelings of predetermined bits
Under condition, it may occur that the problem of the reliability decrease of turbo refrigerating machine.
Accordingly, it would be desirable to one can accurately detect condenser refrigerant liquid level and easily adjust according to testing result
The structure of joint condenser refrigerant liquid level.
Summary of the invention
The technical problem of the present invention is to provide turbo refrigerating machine, it is possible to easily detect the refrigerant liquid of condenser
Position, and carry out easily dimmable condenser refrigerant liquid level according to testing result.
Further, the technical problem of the present invention is to provide turbo refrigerating machine, it is possible to reduces manufacturing expense, and carries
High control response.
In order to solve the problems referred to above, according to a scheme of the present invention, it is provided that turbo refrigerating machine, including: pressure
Contracting machine, including the impeller for compressing cold-producing medium；Condenser, for making the system flowed into from above-mentioned compressor
Cryogen and cooling water carry out heat exchange；Vaporizer, for making the cold-producing medium discharged from above-mentioned condenser and cold
Water (chilled water) carries out heat exchange；Expansion valve, is located between above-mentioned condenser and vaporizer；Two
Individual above sensor, the increase direction along refrigerant level is arranged at mutually different height, is used for
Detect the refrigerant level of the inside of above-mentioned condenser；And control portion, detect according to the sensor
Refrigerant level, regulate the aperture of above-mentioned expansion valve.
Further, the sensor can include the first biography set gradually along the increase direction of refrigerant level
Sensor is to the 3rd sensor, and required refrigerant level can be located at above-mentioned first sensor and the second sensing
Interval between device.
Further, may also include the cylinder being connected with above-mentioned condenser, above-mentioned first sensor to the 3rd passes
Sensor can be set in turn in the inside of above-mentioned cylinder along the direction that refrigerant level increases.
Further, above-mentioned control portion, if above-mentioned first sensor and the second sensor detect cold-producing medium respectively,
Then can open above-mentioned expansion valve, if the most above-mentioned first sensor detects cold-producing medium, then can keep expanding
The aperture of valve.
Further, if above-mentioned 3rd sensor detects cold-producing medium, the most above-mentioned control portion can open above-mentioned expansion
Valve, and be adjusted to the aperture of above-mentioned expansion valve system be detected with only first sensor and the second sensor
The situation of cryogen compares discharging refrigerant quickly.
Further, in the case of first sensor is not detected by cold-producing medium, above-mentioned control portion can close above-mentioned
Expansion valve.
Further, above-mentioned cylinder can be connected with the region being used for housing liquid phase refrigerant of above-mentioned condenser,
Above-mentioned liquid phase refrigerant can keep identical height in the inside of above-mentioned cylinder with the inside of above-mentioned condenser.
Further, above-mentioned first sensor can be static capacity sensor to the 3rd sensor.
Further, according to yet another aspect of the invention, it is provided that turbo refrigerating machine, including: compound compressor,
There is multiple level；Condenser, for making the cold-producing medium and the cooling water (condenser that flow into from above-mentioned compressor
Water) heat exchange is carried out；Phase separator, for the cold-producing medium separation liquid phase system discharged from above-mentioned condenser
Cryogen and vapor phase refrigerant, and make vapor phase refrigerant discharge to above-mentioned compressor；Vaporizer, be used for making from
Liquid phase refrigerant and cold water that above-mentioned phase separator is discharged carry out heat exchange；First expansion valve, is located at above-mentioned
Between condenser and above-mentioned phase separator；Second expansion valve, is located at above-mentioned phase separator and above-mentioned vaporizer
Between；Plural condenser refrigerant liquid level detecting sensor, along the increase side of refrigerant level
To being arranged at mutually different height, for detecting the refrigerant level of the inside of above-mentioned condenser；Two
Above phase separator refrigerant liquid level detection sensor, the increase direction along refrigerant level is arranged at
Mutually different height, for detecting the refrigerant level of the inside of above-mentioned phase separator；And control portion,
Detect according to above-mentioned condenser refrigerant liquid level detecting sensor and above-mentioned phase separator refrigerant level and pass
The refrigerant level that sensor detects, regulates opening of above-mentioned first expansion valve and the second expansion valve respectively
Degree.
Further, above-mentioned condenser refrigerant liquid level detecting sensor can include the increase along refrigerant level
The first condenser refrigerant liquid level detecting sensor that direction sets gradually is to the 3rd condenser refrigerant liquid
Level detection sensor, required refrigerant level can be located at above-mentioned first condenser refrigerant Level Detection
Region between sensor and the second condenser refrigerant liquid level detecting sensor.
Further, above-mentioned turbo refrigerating machine may also include the cylinder being connected with above-mentioned condenser, and above-mentioned first
Condenser refrigerant liquid level detecting sensor to the 3rd condenser refrigerant liquid level detecting sensor can be along
The direction that refrigerant level increases is set in turn in the inside of above-mentioned cylinder.
Further, above-mentioned first condenser refrigerant liquid level detecting sensor is to the 3rd condenser refrigerant liquid level
Detection sensor can be static capacity sensor.
Further, above-mentioned control portion, if above-mentioned first condenser refrigerant liquid level detecting sensor and second cold
Condenser refrigerant liquid level detection sensor detects cold-producing medium respectively, then can open above-mentioned first expansion valve,
If the most above-mentioned first condenser refrigerant liquid level detecting sensor detects cold-producing medium, then can keep first
The aperture of expansion valve.
Further, if above-mentioned 3rd condenser refrigerant liquid level detecting sensor detects cold-producing medium, the most above-mentioned
Control portion can open above-mentioned first expansion valve, and the aperture of above-mentioned first expansion valve is adjusted to and only the
One condenser refrigerant liquid level detecting sensor and the detection of the second condenser refrigerant liquid level detecting sensor
Situation to cold-producing medium compares discharging refrigerant quickly.
Further, above-mentioned turbo refrigerating machine may also include plural phase separator refrigerant level detection biography
Sensor, phase separator refrigerant liquid level detection sensor more than said two is along liquid phase refrigerant liquid level
Increase direction be arranged at mutually different height, for detecting the liquid phase system of inside of above-mentioned phase separator
Cryogen liquid level, the liquid phase system that above-mentioned control portion detects according to phase separator refrigerant liquid level detection sensor
Cryogen liquid level, regulates the aperture of above-mentioned second expansion valve.
Further, above-mentioned phase separator refrigerant liquid level detection sensor can include the increasing along refrigerant level
Add the first phase separator refrigerant liquid level detection sensor that direction sets gradually to third phase separator system
Cryogen liquid level detecting sensor, required refrigerant level is positioned at above-mentioned first phase separator refrigerant liquid
Interval between level detection sensor and the second phase separator refrigerant liquid level detection sensor.
Further, above-mentioned control portion, if above-mentioned first phase separator refrigerant liquid level detection sensor and second
Phase separator refrigerant liquid level detection sensor detects cold-producing medium respectively, then can open above-mentioned second and expand
Valve, if the most above-mentioned first phase separator refrigerant liquid level detection sensor detects cold-producing medium, then can protect
Hold the aperture of the second expansion valve.
Further, if above-mentioned third phase separator refrigerant liquid level detection sensor detects cold-producing medium, then go up
State control portion and can open above-mentioned second expansion valve, and the aperture of above-mentioned second expansion valve is adjusted to and only has
First phase separator refrigerant liquid level detection sensor and the second phase separator refrigerant level detection sensing
Device detects that the situation of cold-producing medium compares discharging refrigerant quickly.
Further, above-mentioned first phase separator refrigerant liquid level detection sensor is to third phase separator cold-producing medium
Liquid level detecting sensor can be static capacity sensor.
Further, according to another aspect of the present invention, it is provided that turbo refrigerating machine, compound compressor, have many
Individual level；Condenser, for making the cold-producing medium flowed into from above-mentioned compressor and cooling water carry out heat exchange；Phase
Separator, for the cold-producing medium separation liquid phase refrigerant discharged from above-mentioned condenser and vapor phase refrigerant, and
Vapor phase refrigerant is made to discharge to above-mentioned compressor；Vaporizer, for making the liquid discharged from above-mentioned phase separator
Phase cold-producing medium and cold water carry out heat exchange；First expansion valve, is located at above-mentioned condenser and above-mentioned phase separator
Between；Second expansion valve, is located between above-mentioned phase separator and above-mentioned vaporizer；Plural condensation
Device refrigerant liquid level detection sensor, the increase direction along refrigerant level is arranged at mutually different height
Degree, for detecting the refrigerant level of the inside of above-mentioned condenser；Plural phase separator cold-producing medium
Liquid level detecting sensor, the increase direction along refrigerant level is arranged at mutually different height, is used for
Detect the refrigerant level of the inside of above-mentioned phase separator；And control portion, freeze according to above-mentioned condenser
The cold-producing medium that agent liquid level detecting sensor and above-mentioned phase separator refrigerant liquid level detection sensor detect
Liquid level, regulates above-mentioned first expansion valve and the aperture of the second expansion valve respectively.
As it has been described above, according to the turbo refrigerating machine being associated with one embodiment of the invention, it is possible to accurately examine
Survey condenser refrigerant liquid level, and carry out easily dimmable condenser refrigerant liquid level according to testing result.
Further, according to the turbo refrigerating machine being associated with one embodiment of the invention, it is possible to reduce manufacturing expenses
Improve while with and control response.
Accompanying drawing explanation
Fig. 1 and Fig. 2 is the block diagram representing the turbo refrigerating machine being associated with the first embodiment of the present invention.
Fig. 3 and Fig. 4 is the work of the turbo refrigerating machine being associated with the first embodiment of the present invention for explanation
Make the concept map of state.
Fig. 5 is the control method of the turbo refrigerating machine being associated with the first embodiment of the present invention for explanation
Flow chart.
Fig. 6 and Fig. 7 is the block diagram representing the turbo refrigerating machine being associated with the second embodiment of the present invention.
Fig. 8 A, Fig. 8 B are the turbo refrigerating machines being associated with the second embodiment of the present invention for explanation
The concept map of duty.
Detailed description of the invention
Hereinafter, referring to the drawings, the turbo refrigerating machine of one embodiment of the invention is described in detail.Accompanying drawing is used for
Illustrate the way of example of the present invention, be intended merely to illustrate in greater detail the present invention and provide, the present invention
Claimed technical scope is not limited to this.
Further, regardless of reference numeral, identical or corresponding structural element marks identical reference, and
Omit repeat specification to this, for convenience of explanation, it is illustrated that the size of each structure member and shape may
Zoom in or out.
On the other hand, including first or second etc., the term of ordinal number may be used for illustrating various structural element,
But said structure key element is not limited by above-mentioned term, above-mentioned term is served only for distinguishing between structural element
Purpose.
Hereinafter, referring to the drawings, illustrate and constitute the turbo refrigerating machine 1 being associated with first embodiment
Each structural element.
Fig. 1 and Fig. 2 is the block diagram representing the turbo refrigerating machine 1 being associated with the first embodiment of the present invention.
Fig. 3 and Fig. 4 is the work of the turbo refrigerating machine 1 being associated with the first embodiment of the present invention for explanation
The concept map of state.Fig. 5 is the turbo refrigerating machine being associated with the first embodiment of the present invention for explanation
The flow chart of the control method of 1.
With reference to Fig. 1, above-mentioned turbo refrigerating machine 1 includes the compressor 10 for compressing cold-producing medium, for making
The condenser 30 of cold-producing medium condensation, for making expansion valve 40 that cold-producing medium expands and for making cold-producing medium
The vaporizer 20 of evaporation.
Above-mentioned compressor 10 can include impeller 11(Impeller), cover, variable diffuser (Diffuser),
Wherein, impeller 11(Impeller) rotate by the driving force driving motor, cover is used for housing impeller,
The kinetic energy of the variable diffuser (Diffuser) fluid for the rotation along with impeller being discharged is converted into pressure
Energy.
As above-mentioned vaporizer 20 and an embodiment of condenser 30, can have shell (Shell in pipe
In tube) structure.Cold water can house system in the inside of the pipe within above-mentioned vaporizer 20, the inside of shell
Cryogen.Equally, cooling water is in the internal flow of the pipe within above-mentioned condenser 30, and the inside of shell can be received
Hold cold-producing medium.
Further, cold water (chilled water) is flowed into or from above-mentioned vaporizer 20 row to above-mentioned vaporizer 20
Go out cold water.At this moment, inside above-mentioned vaporizer 20, above-mentioned cold-producing medium and cold water carry out heat exchange, on
State cold water cooled during by above-mentioned vaporizer.
Further, cooling water (condenser water) is flowed into or from above-mentioned condenser to above-mentioned condenser 30
30 discharge cooling water, and in the inside of above-mentioned condenser 30, above-mentioned cold-producing medium and cooling water carry out heat exchange,
Above-mentioned cooling water is heated during by above-mentioned condenser.
Further, the cold-producing medium housed in the inside of above-mentioned vaporizer 20 and condenser 30 can keep respectively
Predetermined required refrigerant level, and refrigerant level can be regulated by expansion valve.Because of turbine
The freeze cycle structure of fridge 1, regulates the refrigeration of above-mentioned condenser 30 by above-mentioned expansion valve 40
Agent liquid level, the refrigerant level comparing regulation vaporizer 20 is more favourable.
As it has been described above, above-mentioned condenser 30 has shell structure in pipe, cold-producing medium should be in above-mentioned shell
Portion keeps predetermined bits (level).In the case of the refrigerant amount increase that above-mentioned condenser 30 flows into,
Refrigerant level within above-mentioned condenser 30 can uprise, on the contrary, and the system flowed into above-mentioned condenser 30
In the case of cryogen amount reduces, the refrigerant level within above-mentioned condenser 30 can step-down.
Further, the refrigerant level of the cold-producing medium within above-mentioned condenser 30 can not keep the feelings of predetermined bits
Under condition, the temperature of cooling water can not keep design temperature, and reduces the reliability of turbo refrigerating machine 1.
Particularly, when turbo refrigerating machine 1 initial stage starts, during load change or when design temperature changes,
The refrigerant level of above-mentioned condenser 30 can change, and the refrigerant level of condenser can not keep predetermined bits
In the case of, it may occur that the problem of the reliability decrease of turbo refrigerating machine 1.
With reference to Fig. 1 and Fig. 2, be associated with the first embodiment of the present invention turbo refrigerating machine 1, bag
Include: compressor 10, including the impeller 11 for compressing cold-producing medium；Condenser 30, is used for making from above-mentioned
Cold-producing medium and cooling water that compressor 10 flows into carry out heat exchange；Vaporizer 20, is used for making from above-mentioned cold
Cold-producing medium and cold water that condenser 30 is discharged carry out heat exchange；Expansion valve 40, is located at above-mentioned condenser 30 He
Between vaporizer 20；Plural sensor 61 to 63, the increase direction along refrigerant level sets
It is placed in mutually different height, for detecting the refrigerant level of the inside of above-mentioned condenser 30；And
Control portion 70, the refrigerant level detected according to the sensor 61 to 63, regulate above-mentioned expansion
The aperture of valve 40.
In the case of the refrigerant amount increase that above-mentioned condenser 30 flows into, within above-mentioned condenser 30
Refrigerant level can uprise, on the contrary, in the case of the refrigerant amount minimizing that above-mentioned condenser 30 flows into,
Refrigerant level within above-mentioned condenser 30 can step-down.Further, in the inside of above-mentioned condenser 30,
Liquid phase refrigerant R and vapor phase refrigerant can exist simultaneously.Here, the sensor 61 to 63 detection
Liquid phase refrigerant liquid level within condenser 30, the sensor 61 to 63 is along refrigerant level
Increase direction and be arranged at mutually different height, for detecting the refrigerant liquid within above-mentioned condenser 30
Position.
Plural the sensor sets gradually along the increase direction of refrigerant level.Such as, on
Stating sensor and can include first sensor 61 and the second sensor 62, the sensor can include
One sensor 61 and the second sensor 62 and the 3rd sensor 63.
Further, the sensor 61 to 63 can be static capacity sensor.The sensor 61 to
In the case of 63 are static capacity sensor, refrigeration can only be detected in the place arranging respective sensor
Agent.That is, in the case of refrigerant level is positioned at height residing for the sensor, it is possible to this system detected
Cryogen liquid level.
Such as, first sensor 61 is positioned at minimum position, and the second sensor 62 is positioned at than the first sensing
The position that device 61 is high, the 3rd sensor 63 is positioned at the position higher than the second sensor 62.
Further, above-mentioned first sensor 61 detects that the situation of cold-producing medium refers to, in above-mentioned condenser 30
The refrigerant level in portion is higher than the residing height of first sensor 61.Further, first sensor 61 and second
Sensor 62 detects that the situation of cold-producing medium refers to respectively, and the cold-producing medium within above-mentioned condenser 30 is higher than
The second residing height of sensor 62.Further, the 3rd sensor 63 detects that the situation of cold-producing medium refers to,
Refrigerant level within above-mentioned condenser 30 is higher than the 3rd residing height of sensor 63.
Further, only first sensor 61 detects that the situation of cold-producing medium refers to, in above-mentioned condenser 30
The refrigerant level in portion interval between first sensor 61 and the second sensor 62.Sensor 61
The situation being not detected by cold-producing medium refers to, the refrigerant level within above-mentioned condenser 30 is less than the first biography
The residing height of sensor 61.
Above-mentioned control portion 70, the refrigerant level detected according to the sensor 61 to 63, regulate
The aperture of above-mentioned expansion valve 40, thus regulate the refrigerant level within above-mentioned condenser 30.That is, on
State the refrigerant level that control portion 70 detects according to the sensor 61 to 63, close above-mentioned swollen
Swollen valve 40, or open above-mentioned expansion valve 40, or regulate the aperture of above-mentioned expansion valve 40.
Open state according to above-mentioned expansion valve 40 and aperture, the refrigerant liquid within above-mentioned condenser 30
Position can be increased or decreased.Such as, in the case of closing above-mentioned expansion valve 40, above-mentioned condenser 30 is internal
Refrigerant level can increase, in the case of open above-mentioned expansion valve 40, within above-mentioned condenser 30
Refrigerant level can reduce.
That is, in the case of reducing the aperture of above-mentioned expansion valve 40, the cold-producing medium within above-mentioned condenser 30
Liquid level can increase.Further, in the case of increasing the aperture of above-mentioned expansion valve 40, in above-mentioned condenser 30
The refrigerant level in portion can reduce.
Particularly, when turbo refrigerating machine 1 initial stage starts, during load change or when design temperature changes,
The refrigerant level variable of above-mentioned condenser.The refrigeration of above-mentioned condenser 30 is detected in above-mentioned control portion 70
The change of agent liquid level, reaches required refrigerant level by the refrigerant level of condenser, to maintain
Regulation level.
With reference to Fig. 3, plural above-mentioned biography can be set gradually along the increase direction of refrigerant level
Sensor, such as, the sensor is made up of first sensor 61 and the second sensor 62.Further, on
State sensor 61 and 62 and may be located at the inside of above-mentioned condenser 30, it is also possible to be positioned at above-mentioned condenser
The outside of 30.
In the case of the outside of above-mentioned condenser 30 arranges the sensor 61 and 62, above-mentioned turbine
Fridge 1 may also include the cylinder 80 being connected with above-mentioned condenser 30, above-mentioned first sensor 61 and
Second sensor 62 can be set in turn in above-mentioned cylinder 80 along the increasing direction of refrigerant level
Internal.
Further, above-mentioned cylinder 80 is (logical with the region being used for housing liquid phase refrigerant R of above-mentioned condenser 30
It is often lower area) it is connected, above-mentioned liquid phase refrigerant R can be in the inside of above-mentioned cylinder 80 and above-mentioned
The inside of condenser 30 keeps identical height.Sensor 61 and 62 is set inside above-mentioned cylinder 80
Situation, compare the situation that sensor is set inside condenser 30, it is possible to increase reliability.
Such as, even if in the case of the refrigerant level within condenser 30 drastically changes, due to even
The pipe arrangement connect between above-mentioned condenser 30 and cylinder 80 plays cushioning effect, therefore, compares at above-mentioned gas
The internal situation that sensor 61 and 62 is set of cylinder 80, it is possible to carry out more precise control.
Further, above-mentioned first sensor 61 detects that the situation of cold-producing medium refers to, in above-mentioned condenser 30
The refrigerant level in portion is higher than the residing height of first sensor 61.Further, first sensor 61 and second
Sensor 62 detects that the situation of cold-producing medium refers to respectively, and the cold-producing medium within above-mentioned condenser 30 is higher than
The second residing height of sensor 62.
Further, only first sensor 61 detects that the situation of cold-producing medium refers to, in above-mentioned condenser 30
The refrigerant level in portion interval between first sensor 61 and the second sensor 62, sensor 61
The situation being not detected by cold-producing medium refers to, the refrigerant level within above-mentioned condenser 30 is less than the first biography
The residing height of sensor 61.
On the other hand, required refrigerant level V can be located at first sensor 61 and the second sensor
Interval setting between 62.That is, the second sensor 62 is not detected by cold-producing medium and only first sensor
In the case of 61 detect cold-producing medium, above-mentioned control portion 70 can determine whether the cold-producing medium of the inside into condenser
Liquid level remains required refrigerant level V.Above-mentioned required refrigerant level V, certainly can
Diversely determine according to the load required by turbo refrigerating machine 1.
If here, first sensor 61 and the second sensor 62 detect cold-producing medium, the most above-mentioned control respectively
Portion 70 processed is judged as that the current refrigerant liquid level within condenser 30 is higher than required refrigerant level V.
At this moment, above-mentioned control portion 70, in order to reduce the refrigerant level within condenser 30, can open above-mentioned swollen
Swollen valve 40.Therefore, the cold-producing medium within above-mentioned condenser 30 by above-mentioned expansion valve 40 to vaporizer
20 discharge, and the refrigerant level within the most above-mentioned condenser 30 reduces, and above-mentioned condenser 30 is internal
Refrigerant level keep required by refrigerant level V.
On the other hand, open above-mentioned expansion valve 40, not only instigate expansion valve 40 lower open in off position,
It is additionally included in the aperture increasing above-mentioned expansion valve under the state that above-mentioned expansion valve 40 keeps predetermined aperture
The meaning.
Further, if the most above-mentioned first sensor 61 detects cold-producing medium, the most above-mentioned control portion 70 can make
Expansion valve 40 keeps current aperture.That is, above-mentioned second sensor 62 be not detected by cold-producing medium and only on
Stating in the case of first sensor 61 detects cold-producing medium, above-mentioned control portion 70 can determine whether as condenser
Internal refrigerant level remains required refrigerant level V, thus keeps opening of expansion valve 40
Degree.
Unlike this, in the case of above-mentioned first sensor 61 is not detected by cold-producing medium, above-mentioned control portion
Can close above-mentioned expansion valve 40 for 70, therefore, the refrigerant level within above-mentioned condenser 30 uprises,
And the refrigerant level V required by keeping.
On the other hand, the spacing (difference in height) between the 3rd sensor 63 and the second sensor 62 can be little
Spacing (difference in height) between first sensor 61 and the second sensor 62.Further, adjacent two
Spacing between individual sensor, can determine according to required refrigerant level V.
With reference to Fig. 4, the above-mentioned sensing of more than three can be set gradually along the direction that increases of refrigerant level
Device, such as, above-mentioned the sensor can be passed by first sensor 61 and the second sensor 62 and the 3rd
Sensor 63 is constituted.As it has been described above, the sensor 61 to 63 may be located in above-mentioned condenser 30
Portion, it is also possible to be positioned at the outside of above-mentioned condenser 30.
In the case of the outside of above-mentioned condenser 30 arranges the sensor 61 to 63, above-mentioned turbine
Fridge 1 does not include the cylinder 80 being connected with above-mentioned condenser 30, above-mentioned first sensor 61 to
Three sensors 63 can be set in turn in above-mentioned cylinder 80 along the direction that increases of refrigerant level
Portion.
Further, above-mentioned cylinder 80 and above-mentioned condenser 30 are (logical for the region housing liquid phase refrigerant R
Normal lower area) it is connected, above-mentioned liquid phase refrigerant R can be in the inside of above-mentioned cylinder 80 and above-mentioned
The inside of condenser 30 keeps identical height.Inside above-mentioned cylinder 80, sensor 61 to 63 is set
Situation, compare the situation that sensor is set inside condenser 30, it is possible to increase reliability.
Such as, even if in the case of the refrigerant level within condenser 30 changes suddenly, due to even
The pipe arrangement connect between above-mentioned condenser 30 and cylinder 80 plays cushioning effect, therefore, compares at above-mentioned gas
The internal situation that sensor 61 to 63 is set of cylinder 80, it is possible to carry out more precise control.
Further, above-mentioned first sensor 61 detects that the situation of cold-producing medium refers to, in above-mentioned condenser 30
The refrigerant level in portion is higher than the residing height of first sensor 61.Further, first sensor 61 and second
Sensor 62 detects that the situation of cold-producing medium refers to respectively, and the cold-producing medium within above-mentioned condenser 30 is higher than
The second residing height of sensor 62.
Further, only first sensor 61 detects that the situation of cold-producing medium refers to, in above-mentioned condenser 30
The refrigerant level in portion interval between first sensor 61 and the second sensor 62.Equally, pass
Sensor 61 is not detected by the situation of cold-producing medium and refers to, the refrigerant level within above-mentioned condenser 30 is less than
The residing height of first sensor 61.
On the other hand, required refrigerant level V can be located at first sensor 61 and the second sensor
Interval between 62.That is, the second sensor 62 is not detected by cold-producing medium and only first sensor 61 is examined
In the case of measuring cold-producing medium, above-mentioned control portion 70 can determine whether the refrigerant level of the inside into condenser
Remain required refrigerant level V.
With reference to Fig. 5, if first sensor 61 and the second sensor 62 detect cold-producing medium respectively, then go up
State control portion 70 and be judged as that the current refrigerant liquid level within condenser 30 is higher than required refrigerant liquid
Position V, and open above-mentioned expansion valve 40.Therefore, the cold-producing medium within above-mentioned condenser 30 is by above-mentioned
Expansion valve 40 and discharge to vaporizer 20, refrigerant level within the most above-mentioned condenser 30 reduces,
And the refrigerant level within above-mentioned condenser 30 keep required by refrigerant level V.
On the other hand, open above-mentioned expansion valve 40, not only instigate expansion valve 40 lower open in off position,
It is additionally included in the aperture increasing above-mentioned expansion valve under the state that above-mentioned expansion valve 40 keeps predetermined aperture
The meaning.
Further, if the most above-mentioned first sensor 61 detects cold-producing medium, the most above-mentioned control portion 70 can make
Expansion valve 40 keeps current aperture.That is, above-mentioned second sensor 62 be not detected by cold-producing medium and only on
Stating in the case of first sensor 61 detects cold-producing medium, above-mentioned control portion 70 can determine whether as condenser
Internal refrigerant level remains required refrigerant level V, thus keeps opening of expansion valve 40
Degree.
Unlike this, in the case of above-mentioned first sensor 61 is not detected by cold-producing medium, above-mentioned control portion
Can close above-mentioned expansion valve 40 for 70, therefore, the refrigerant level within above-mentioned condenser 30 uprises,
And the refrigerant level V required by keeping.
On the other hand, detecting that the situation of cold-producing medium refers at the 3rd sensor 63, condenser 30 is internal
Refrigerant level higher than the residing height of first sensor 61.If above-mentioned 3rd sensor 63 detects system
Cryogen, the most above-mentioned control portion 70 can open above-mentioned expansion valve 40, and the aperture of above-mentioned expansion valve 40 be adjusted
Joint for compared with the situation that only first sensor 61 and the second sensor 62 detect cold-producing medium quickly
Discharging refrigerant.
Specifically, if first sensor 61 and the second sensor 62 detect cold-producing medium respectively, the most above-mentioned
Control portion 70 is judged as that the current refrigerant liquid level within condenser 30 is higher than required refrigerant level
V.At this moment, above-mentioned control portion 70 can open above-mentioned expansion valve 40, or increases opening of above-mentioned expansion valve 40
Degree.In the case of the 3rd sensor 63 detects cold-producing medium, above-mentioned control portion 70 is judged as condenser
Refrigerant level within 30 is currently apparently higher than required refrigerant level V situation.At this moment, on
State control portion 70 to be adjusted to the aperture of above-mentioned expansion valve 40 pass with only first sensor 61 and second
Sensor 62 detects that the situation of cold-producing medium compares discharging refrigerant quickly.
So far, illustrate to detect the refrigeration within condenser 30 by two or three sensors
The embodiment of agent liquid level, but the present invention is not limited to this, it is of course possible to and the quantity increasing sensor is come more smart
True detection liquid phase refrigerant liquid level within condenser 30.
Hereinafter, referring to the drawings, the turbo refrigerating machine 100 that composition is associated is illustrated with the second embodiment
Each structural element.
Fig. 6 and Fig. 7 is the block diagram representing the turbo refrigerating machine being associated with the second embodiment of the present invention.
Fig. 8 A, Fig. 8 B are the work of the turbo refrigerating machine being associated with the second embodiment of the present invention for explanation
The concept map of state.
Further, the turbo refrigerating machine 100 being associated with the second embodiment of the present invention includes: multi-stage compression
Machine 110, has multiple level；Condenser 130, for making the cold-producing medium flowed into from above-mentioned compressor 110
Heat exchange is carried out with cooling water；Phase separator 150, for the cold-producing medium discharged from above-mentioned condenser 130
Separate liquid phase refrigerant and vapor phase refrigerant, and make vapor phase refrigerant discharge to above-mentioned compressor 110；Steam
Send out device 120, for making liquid phase refrigerant and the cold water discharged from above-mentioned phase separator 150 carry out heat exchange；
First expansion valve 141, is located between above-mentioned condenser 130 and above-mentioned phase separator 150；Second expands
Valve 142, is located between above-mentioned phase separator 150 and above-mentioned vaporizer 120.
Further, above-mentioned turbo refrigerating machine 100 includes that plural condenser refrigerant Level Detection senses
161 to 163, the increase direction along refrigerant level is arranged at mutually different height, is used for detecting
Refrigerant level within above-mentioned condenser 130；And control portion, according to above-mentioned condenser refrigerant liquid
The refrigerant level that level detection sensor 161 to 163 detects, regulates above-mentioned first expansion valve 141
Aperture.
Above-mentioned compressor 110 has multiple level, and as an embodiment, above-mentioned compressor 110 includes low
Pressure compression unit 111 and high pressure compressed portion 112.Specifically, the cold-producing medium discharged from above-mentioned evaporation part is upwards
State low pressure compression unit 111 to flow into, from the vapor phase refrigerant of above-mentioned phase separator 150 separation to above-mentioned high pressure
Compression unit 112 flows into.
As a result, in above-mentioned high pressure compressed portion 112, phase separator 150 separate vapor phase refrigerant and
The cold-producing medium of low pressure compression unit 111 compression is together compressed, the pressure therefore applied above-mentioned compressor 110
Contracting merit reduces.The work done during compression applying above-mentioned compressor 110 reduces, and brings the operating model of compressor 110
Enclose the effect of increase.
Further, above-mentioned condenser 130 and vaporizer 120 and the turbine refrigeration being associated with first embodiment
The pool period 30 of machine 1 and vaporizer have identical structure, therefore omit and specifically describe.
I.e..The turbo refrigerating machine 100 being associated with the second embodiment, in order to increase the fortune of compressor 110
Turn scope, and improve the efficiency of turbo refrigerating machine 100, compressor 110 is divided into multiple level, and cold
Arrange phase separator between condenser 130 and vaporizer 120 (to be referred to as saving (economizer)
Device) 150, the turbo refrigerating machine 1 that only these aspects are associated with first embodiment has difference.
With reference to Fig. 8 A, above-mentioned condenser refrigerant liquid level detecting sensor can include along refrigerant level
Increase the first condenser refrigerant liquid level detecting sensor 161 of setting gradually of direction to the 3rd condenser
Refrigerant liquid level detection sensor 163, required refrigerant level V1 can be located at above-mentioned first condensation
Between device refrigerant liquid level detection sensor 161 and the second condenser refrigerant liquid level detecting sensor 162
Interval, above-mentioned first condenser refrigerant liquid level detecting sensor 161 is to the 3rd condenser refrigerant liquid
Level detection sensor 163 can be static capacity sensor.
On the other hand, such as first embodiment, above-mentioned turbo refrigerating machine 100 may also include and condenser 130
The cylinder (being referred to as the first cylinder) 181 being connected.At this moment, above-mentioned first condenser refrigerant
Liquid level detecting sensor 161 is to the 3rd condenser refrigerant liquid level detecting sensor 163 along refrigerant liquid
It is internal that the increase direction of position is set in turn in above-mentioned first cylinder 181.
Further, above-mentioned control portion 170 is according to the first condenser refrigerant liquid level detecting sensor 161 to
The testing result of three condenser refrigerant liquid level detecting sensors 163, regulates the first expansion valve 141
Open state and aperture, and the method and the of thus regulation liquid phase refrigerant liquid level condenser 130 within
The method of one embodiment is identical.
On the other hand, the 3rd condenser refrigerant liquid level detecting sensor 163 and the second condenser refrigerant
Spacing (difference in height) between liquid level detecting sensor 162 is smaller than the first condenser refrigerant liquid level inspection
Survey the spacing between sensor 161 and the second condenser refrigerant liquid level detecting sensor 162 (highly
Difference).Further, the spacing of two adjacent condenser refrigerant liquid level detecting sensors can be according to being wanted
The scope of the refrigerant level V asked and determine.
Further, above-mentioned control portion 170, if the first condenser refrigerant liquid level detecting sensor 161 and
Two condenser refrigerant liquid level detecting sensors 162 detect cold-producing medium respectively, then open the first expansion valve
141, if the only first condenser refrigerant liquid level detecting sensor 161 detects cold-producing medium, then keep
The aperture of the first expansion valve 141.
Further, if the 3rd condenser refrigerant liquid level detecting sensor 163 detects cold-producing medium, the most above-mentioned
Open first expansion valve 141 in control portion 170, and the aperture of the first expansion valve 141 is adjusted to and only has
First condenser refrigerant liquid level detecting sensor 161 and the second condenser refrigerant liquid level detecting sensor
162 detect that cold-producing medium R1 situation compares discharging refrigerant quickly.
Further, the increase direction that above-mentioned turbo refrigerating machine 100 may also include along liquid phase refrigerant liquid level sets
Be placed in the plural phase separator refrigerant liquid level detection sensor 164 of mutually different height to
166, to detect liquid phase refrigerant liquid level R2 within above-mentioned phase separator 150.Above-mentioned control portion 170
The liquid phase refrigerant liquid that can detect according to phase separator refrigerant liquid level detection sensor 164 to 166
Position, regulates the aperture of above-mentioned second expansion valve 142.
It is separated here, the required refrigerant level V2 of phase separator 150 can be located at above-mentioned first
Device refrigerant liquid level detection sensor 164 and the second phase separator refrigerant liquid level detection sensor 165 it
Between interval.Further, above-mentioned first phase separator refrigerant liquid level detection sensor 164 to third phase divides
Can be static capacity sensor from device refrigerant liquid level detection sensor 166.
On the other hand, third phase separator refrigerant liquid level detection sensor 166 and the second phase separator system
Spacing (difference in height) between cryogen liquid level detecting sensor 165 can be less than the first phase separator system
Between cryogen liquid level detecting sensor 164 and the second phase separator refrigerant liquid level detection sensor 165
Spacing (difference in height).Further, the spacing of two adjacent phase separator refrigerant liquid level detection sensor
Can determine according to the scope of required refrigerant level V2.
On the other hand, such as condenser 130, above-mentioned turbo refrigerating machine 100 may also include and condenser 130
The cylinder (being referred to as the second cylinder) 182 being connected.At this moment, above-mentioned first phase separator refrigeration
Agent liquid level detecting sensor is to third phase separator refrigerant liquid level detection sensor 164 to 166 along system
It is internal that the increase direction of cryogen liquid level is set in turn in above-mentioned second cylinder 182.
Further, above-mentioned control portion 170 according to the first phase separator refrigerant liquid level detection sensor 164 to
The testing result of third phase separator refrigerant liquid level detection sensor 166, regulates the second expansion valve 142
Open state and aperture, and the method for thus regulation liquid phase refrigerant liquid level within phase separator 150,
Identical with the method for condenser 130.
Specifically, above-mentioned control portion 170, if the first phase separator refrigerant liquid level detection sensor 164
And second phase separator refrigerant liquid level detection sensor 165 cold-producing medium detected respectively, then open second
Expansion valve 142, if the only first phase separator refrigerant liquid level detection sensor 164 detects cold-producing medium,
Then keep the aperture of the second expansion valve 142.
Further, if third phase separator refrigerant liquid level detection sensor 166 detects cold-producing medium, then go up
State open second expansion valve 142 in control portion 170.Above-mentioned control portion 170 can be by above-mentioned second expansion valve
Aperture is adjusted to and the only first phase separator refrigerant liquid level detection sensor 164 and the second phase separator
Refrigerant liquid level detection sensor 165 detects that cold-producing medium R2 situation compares discharging refrigerant quickly.
On the other hand, above-mentioned first expansion valve 141 can be high-pressure expansion valve, and the second expansion valve 142 can
To be inflated with low pressure valve.
Briefly, above-mentioned control portion 170 can be according to above-mentioned condenser refrigerant liquid level detecting sensor 161
The refrigerant liquid detected to 163 and above-mentioned phase separator refrigerant liquid level detection sensor 164 to 166
Position, regulates above-mentioned first expansion valve 141 and the aperture of the second expansion valve 142 respectively.Further, above-mentioned
Control portion 170 can simultaneously or sequentially regulate above-mentioned first expansion valve 141 and the opening of the second expansion valve 142
State and aperture.According to the turbo refrigerating machine 100 being associated with the second embodiment, regulate the first expansion valve
141 and second aperture of expansion valve 142, make condenser 130 and the refrigerant liquid of phase separator 150
Position keeps predetermined required refrigerant level V1, V2 respectively, it is possible to improve turbo refrigerating machine
The reliability of 100.
Examine as mentioned above, according to the turbo refrigerating machine being associated with the first embodiment of the present invention, it is possible to essence
Really detection condenser refrigerant liquid level, and carry out easily dimmable condenser refrigerant liquid level according to testing result.
Further, according to the turbo refrigerating machine being associated with the first embodiment of the present invention, it is possible to reduce and manufacture
Improve while expense and control response.
The preferred embodiment of present invention mentioned above be in order at illustration purpose and disclosed, for this
For bright person of an ordinary skill in the technical field, can carry out each in the thought and scope of the present invention
Plant amendment, change and add, and these are revised, change and add all should fall and claim model in invention
In enclosing.
Claims (17)
1. a turbo refrigerating machine, it is characterised in that including:
Compressor, including the impeller for compressing cold-producing medium；
Condenser, for making the cold-producing medium flowed into from above-mentioned compressor and cooling water carry out heat exchange；
Vaporizer, for making the cold-producing medium discharged from above-mentioned condenser and cold water carry out heat exchange；
Expansion valve, is located between above-mentioned condenser and vaporizer；
Plural sensor, the increase direction along refrigerant level is arranged at mutually different height
Degree, for detecting the refrigerant level of the inside of above-mentioned condenser；And
Control portion, the refrigerant level detected according to the sensor, regulate opening of above-mentioned expansion valve
Degree；
The sensor includes increasing the first sensor that sets gradually of direction extremely along refrigerant level
3rd sensor,
Required refrigerant level interval between above-mentioned first sensor and the second sensor.
Turbo refrigerating machine the most according to claim 1, it is characterised in that
Above-mentioned turbo refrigerating machine also includes the cylinder being connected with above-mentioned condenser,
The direction that above-mentioned first sensor increases to the 3rd sensor along refrigerant level is set in turn in
The inside of above-mentioned cylinder.
Turbo refrigerating machine the most according to claim 1 and 2, it is characterised in that if above-mentioned first
Sensor and the second sensor detect cold-producing medium respectively, the open above-mentioned expansion valve in the most above-mentioned control portion, if
The most above-mentioned first sensor detects cold-producing medium, and the most above-mentioned control portion keeps the aperture of above-mentioned expansion valve.
Turbo refrigerating machine the most according to claim 3, it is characterised in that
If above-mentioned 3rd sensor detects cold-producing medium, the open above-mentioned expansion valve in the most above-mentioned control portion, and will
The aperture of above-mentioned expansion valve is adjusted to refrigeration be detected with the most above-mentioned first sensor and the second sensor
The situation of agent compares discharging refrigerant quickly.
Turbo refrigerating machine the most according to claim 1 and 2, it is characterised in that above-mentioned first
In the case of sensor is not detected by cold-producing medium, above-mentioned control portion closes above-mentioned expansion valve.
Turbo refrigerating machine the most according to claim 2, it is characterised in that
Above-mentioned cylinder is connected with the region being used for housing liquid phase refrigerant of above-mentioned condenser,
Above-mentioned liquid phase refrigerant keeps identical height in the inside of above-mentioned cylinder with the inside of above-mentioned condenser
Degree.
Turbo refrigerating machine the most according to claim 1, it is characterised in that above-mentioned first sensor
It is static capacity sensor to the 3rd sensor.
8. a turbo refrigerating machine, it is characterised in that including:
Compound compressor, has multiple level；
Condenser, for making the cold-producing medium flowed into from above-mentioned compressor and cooling water carry out heat exchange；
Phase separator, for the cold-producing medium separation liquid phase refrigerant discharged from above-mentioned condenser and gas phase refrigeration
Agent, and make vapor phase refrigerant discharge to above-mentioned compressor；
Vaporizer, for making the liquid phase refrigerant discharged from above-mentioned phase separator and cold water carry out heat exchange；
First expansion valve, is located between above-mentioned condenser and above-mentioned phase separator；
Second expansion valve, is located between above-mentioned phase separator and above-mentioned vaporizer；
Plural condenser refrigerant liquid level detecting sensor, along the increase side of refrigerant level
To, it is arranged at mutually different height, for detecting the refrigerant level of the inside of above-mentioned condenser；With
And
Control portion, the refrigerant level detected according to above-mentioned condenser refrigerant liquid level detecting sensor,
Regulate the aperture of above-mentioned first expansion valve；
Above-mentioned condenser refrigerant liquid level detecting sensor includes depending on along the increase direction of refrigerant level
First condenser refrigerant liquid level detecting sensor of secondary setting is to the 3rd condenser refrigerant Level Detection
Sensor,
Required refrigerant level is positioned at above-mentioned first condenser refrigerant liquid level detecting sensor and the
Region between two condenser refrigerant liquid level detecting sensors.
Turbo refrigerating machine the most according to claim 8, it is characterised in that
Above-mentioned turbo refrigerating machine also includes the cylinder being connected with above-mentioned condenser,
Above-mentioned first condenser refrigerant liquid level detecting sensor is to the 3rd condenser refrigerant Level Detection
Sensor is set in turn in the inside of above-mentioned cylinder along the direction that refrigerant level increases.
Turbo refrigerating machine the most according to claim 8, it is characterised in that above-mentioned first condenser
Refrigerant liquid level detection sensor to the 3rd condenser refrigerant liquid level detecting sensor is that static capacity passes
Sensor.
11. turbo refrigerating machines according to claim 8, it is characterised in that if above-mentioned first condensation
Device refrigerant liquid level detection sensor and the second condenser refrigerant liquid level detecting sensor detect respectively
Cold-producing medium, open above-mentioned first expansion valve in the most above-mentioned control portion, if the most above-mentioned first condenser refrigerant
Liquid level detecting sensor detects cold-producing medium, and the most above-mentioned control portion keeps the aperture of above-mentioned first expansion valve.
12. turbo refrigerating machines according to claim 11, it is characterised in that if above-mentioned 3rd cold
Condenser refrigerant liquid level detection sensor detects cold-producing medium, and the most above-mentioned control portion open above-mentioned first expands
Valve, and the aperture of above-mentioned first expansion valve is adjusted to and the most above-mentioned first condenser refrigerant liquid level inspection
Survey sensor and the second condenser refrigerant liquid level detecting sensor detects that the situation of cold-producing medium is compared more
Fast ground discharging refrigerant.
13. turbo refrigerating machines according to claim 8, it is characterised in that
Above-mentioned turbo refrigerating machine also includes plural phase separator refrigerant liquid level detection sensor, institute
State phase separator refrigerant liquid level detection sensor to be arranged at along the increase direction of liquid phase refrigerant liquid level
Mutually different height, for detecting the liquid phase refrigerant liquid level of the inside of above-mentioned phase separator,
The liquid phase refrigerant that above-mentioned control portion detects according to phase separator refrigerant liquid level detection sensor
Liquid level, regulates the aperture of above-mentioned second expansion valve.
14. turbo refrigerating machines according to claim 13, it is characterised in that
Above-mentioned phase separator refrigerant liquid level detection sensor includes the increase direction along refrigerant level
The the first phase separator refrigerant liquid level detection sensor set gradually is to third phase separator refrigerant liquid
Level detection sensor,
Required refrigerant level be positioned at above-mentioned first phase separator refrigerant liquid level detection sensor and
Interval between second phase separator refrigerant liquid level detection sensor.
15. turbo refrigerating machines according to claim 14, it is characterised in that if above-mentioned first phase
Separator refrigerant liquid level detection sensor and the second phase separator refrigerant liquid level detection sensor are respectively
Cold-producing medium being detected, open above-mentioned second expansion valve in the most above-mentioned control portion, if the most above-mentioned first is separated
Device refrigerant liquid level detection sensor detects cold-producing medium, and the most above-mentioned control portion keeps above-mentioned second expansion valve
Aperture.
16. turbo refrigerating machines according to claim 15, it is characterised in that if above-mentioned third phase
Separator refrigerant liquid level detection sensor detects cold-producing medium, and the most above-mentioned control portion is open above-mentioned second swollen
Swollen valve, and the aperture of above-mentioned second expansion valve is adjusted to and the most above-mentioned first phase separator refrigerant liquid
Level detection sensor and the second phase separator refrigerant liquid level detection sensor detect the situation of cold-producing medium
Compare discharging refrigerant quickly.
17. turbo refrigerating machines according to claim 14, it is characterised in that above-mentioned first phase is divided
It is electrostatic from device refrigerant liquid level detection sensor to third phase separator refrigerant liquid level detection sensor
Capacity sensor.
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| KR10-2012-0114789 | 2012-10-16 | ||
| KR1020120114789A KR20140048620A (en) | 2012-10-16 | 2012-10-16 | Turbo chiller |
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| CN105277254A (en) * | 2014-07-24 | 2016-01-27 | 上海日立电器有限公司 | Combined assembly structure and combined assembly method of capacitance-type oil level sensor |
| CN108027189B (en) | 2015-09-18 | 2021-07-06 | 开利公司 | Freeze protection system and method for a chiller |
| CN106766441A (en) | 2015-11-25 | 2017-05-31 | 开利公司 | Refrigeration system and its throttling control method |
| CN107036317B (en) * | 2016-02-04 | 2019-09-06 | Lg电子株式会社 | Cooling system |
| US10808977B2 (en) | 2016-02-04 | 2020-10-20 | Franke Technology And Trademark Ltd | Refrigeration apparatus with a valve |
| US10955179B2 (en) * | 2017-12-29 | 2021-03-23 | Johnson Controls Technology Company | Redistributing refrigerant between an evaporator and a condenser of a vapor compression system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101338948A (en) * | 2008-05-09 | 2009-01-07 | 浙江盾安人工环境设备股份有限公司 | Refrigeration system provided with electronic expansion valve opening control device |
| US7621141B2 (en) * | 2004-09-22 | 2009-11-24 | York International Corporation | Two-zone fuzzy logic liquid level control |
| CN102032731A (en) * | 2010-12-08 | 2011-04-27 | 海尔集团公司 | Central air conditioner and method for controlling flow of refrigerant therein |
| CN102338521A (en) * | 2011-09-24 | 2012-02-01 | 林勇 | Supercooling liquid impact preventing device of air cooling heat pump air conditioner |
| CN202281432U (en) * | 2011-10-11 | 2012-06-20 | 麦克维尔空调制冷(武汉)有限公司 | Cold-water heating pump unit adopting new liquid supply method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5478983B2 (en) * | 2009-08-17 | 2014-04-23 | 荏原冷熱システム株式会社 | Compressive refrigerator and operation method thereof |
| KR20120053729A (en) * | 2010-11-18 | 2012-05-29 | 엘지전자 주식회사 | Heat pump |
-
2012
- 2012-10-16 KR KR1020120114789A patent/KR20140048620A/en active Search and Examination
-
2013
- 2013-10-16 CN CN201310485007.2A patent/CN103727695B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7621141B2 (en) * | 2004-09-22 | 2009-11-24 | York International Corporation | Two-zone fuzzy logic liquid level control |
| CN101338948A (en) * | 2008-05-09 | 2009-01-07 | 浙江盾安人工环境设备股份有限公司 | Refrigeration system provided with electronic expansion valve opening control device |
| CN102032731A (en) * | 2010-12-08 | 2011-04-27 | 海尔集团公司 | Central air conditioner and method for controlling flow of refrigerant therein |
| CN102338521A (en) * | 2011-09-24 | 2012-02-01 | 林勇 | Supercooling liquid impact preventing device of air cooling heat pump air conditioner |
| CN202281432U (en) * | 2011-10-11 | 2012-06-20 | 麦克维尔空调制冷(武汉)有限公司 | Cold-water heating pump unit adopting new liquid supply method |
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