CN207407553U - Throttling mechanism and refrigerating system - Google Patents
Throttling mechanism and refrigerating system Download PDFInfo
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- CN207407553U CN207407553U CN201721233019.6U CN201721233019U CN207407553U CN 207407553 U CN207407553 U CN 207407553U CN 201721233019 U CN201721233019 U CN 201721233019U CN 207407553 U CN207407553 U CN 207407553U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 77
- 239000003507 refrigerant Substances 0.000 claims abstract description 97
- 238000004891 communication Methods 0.000 claims description 62
- 238000005057 refrigeration Methods 0.000 claims description 60
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model discloses a throttling mechanism and refrigerating system. The throttle mechanism has a first refrigerant flow port and a second refrigerant flow port and includes a primary throttle device, a secondary throttle device, and a control device. The throttle mechanism has a first operating state in which the control device controls the refrigerant, which has entered the throttle mechanism from the first refrigerant circulation port, to flow to the second refrigerant circulation port through the main throttle device, and a second operating state. In the second operating state, the control device controls the refrigerant, which enters the throttle mechanism from the first refrigerant circulation port, to flow to the second refrigerant circulation port through the main throttle device and the auxiliary throttle device connected in series. The utility model discloses a throttling mechanism improves the great problem of throttle noise that refrigerating system among the prior art exists.
Description
Technical field
The utility model is related to refrigeration technology field, more particularly to a kind of throttle mechanism and refrigeration system.
Background technology
Container is in the case where freezing operating mode, and the temperature inside the box is minimum to can reach -30 DEG C, and case is outer due to being sea transport environment,
Temperature can reach 50 DEG C or more.Therefore container refrigeration system needs the reliability service under the operating mode of High Pressure Difference.Current
Container refrigeration system is mostly by the way of pressure difference feed flow.Under High Pressure Difference operating mode, since the inspiratory capacity of refrigeration system is few, system
The circulating mass of refrigerant of cooling system is few, and the aperture of throttling set will become very little, at this point, throttling set will generate howling,
Seriously affect the user experience of refrigeration system.
In addition, container refrigeration system, when starting cooling, the temperature inside and outside case may be 40 DEG C or so, even more
Height, the circulating mass of refrigerant of refrigeration system is very big at this time.When the aperture of throttling set opens to the maximum, refrigerant passes through evaporator
Afterwards, suction superheat is still very big, causes evaporator feed flow insufficient.
Utility model content
The purpose of this utility model is to provide a kind of throttle mechanism and refrigeration system, to improve refrigeration of the prior art
The problem of existing throttling noise of system is larger.
The utility model first aspect provides a kind of throttle mechanism, the throttle mechanism have the first refrigerant communication port and
Second refrigerant communication port and including main throttling set, auxiliary throttling set and control device, the throttle mechanism has the first work
Make state and the second working condition, in first working condition, the control device control is circulated from first refrigerant
The refrigerant of mouth into the throttle mechanism flow to the second refrigerant communication port by the main throttling set；Described
Two working conditions, refrigerant of the control device control from the first refrigerant communication port into the throttle mechanism pass through
The main throttling set and the auxiliary throttling set of series connection flow to the second refrigerant communication port.
Further, the main throttling set has first port and second port, and the throttle mechanism further includes setting
First flow path and second flow path between the first refrigerant communication port and the first port of the main throttling set, it is described
Auxiliary throttling set is arranged in the second flow path, the second port of the main throttling set and the second refrigerant communication port
Connection, in first working condition, the control device controls the first flow path connection and the second flow path is controlled to break
It opens；In second working condition, the control device controls the first flow path to disconnect and the second flow path is controlled to connect.
Further, the control device includes being arranged in the first flow path to control the break-make of the first flow path
The first on-off valve and be arranged in the second flow path to control the second on-off valve of the break-make of the second flow path.
Further, second on-off valve is arranged between the main throttling set and the auxiliary throttling set.
Further, the control device, which further includes, is arranged at the auxiliary throttling set and the second refrigerant communication port
Between the 3rd on-off valve.
Further, the main throttling set includes expansion valve or capillary；And/or the auxiliary throttling set is including swollen
Swollen valve or capillary.
Further, the throttle mechanism also has the 3rd working condition, in the 3rd working condition, the control dress
Put refrigerant of the control from the first refrigerant communication port into the throttle mechanism respectively by the main throttling set and
The auxiliary throttling set flows to the second refrigerant communication port.
Further, the throttle mechanism also has the 3rd working condition, in the 3rd working condition, the control dress
Put refrigerant of the control from the first refrigerant communication port into the throttle mechanism respectively by the main throttling set and
The auxiliary throttling set flows to the second refrigerant communication port, and the auxiliary throttling set has first port and second port,
The first port of the auxiliary throttling set is connected with the first refrigerant communication port, and the throttle mechanism, which further includes, is arranged at institute
The 3rd flow path between the second port of auxiliary throttling set and the second refrigerant communication port is stated, in the described first work shape
State, the control device control the 3rd flow path to disconnect；In the 3rd working condition, the control device control described the
One fluid communication and control the 3rd fluid communication.
The utility model second aspect provides a kind of refrigeration system, including sequentially connected compressor, such as condenser, this reality
The throttle mechanism and evaporator provided with any one of new first aspect, the first refrigerant communication port connect with the condenser
Logical, the second refrigerant communication port is connected with the evaporator.
Further, the refrigeration system includes container refrigeration system.
Based on throttle mechanism provided by the utility model and refrigeration system, throttle mechanism have the first refrigerant communication port and
Second refrigerant communication port and including main throttling set, auxiliary throttling set and control device, throttle mechanism has the first work shape
State and the second working condition, in the first working condition, control device control enters throttle mechanism from the first refrigerant communication port
Refrigerant flow to the second refrigerant communication port by main throttling set；In the second working condition, control device control is from the
The refrigerant that one refrigerant communication port enters throttle mechanism flow to the second system by the main throttling set and auxiliary throttling set of series connection
Cryogen communication port.It, can be with when refrigeration system is in High Pressure Difference operating mode when the throttle mechanism of the utility model is used for refrigeration system
Control throttle mechanism is in the second working condition so that the condensed refrigerant of condenser first passes through auxiliary throttling set and carries out one
Secondary throttling reduces its pressure, is then throttled again by main throttling set, so as to improve refrigeration system of the prior art only
The problem of once noise existing for throttling is larger is carried out by expansion valve.
By referring to the drawings to the detailed description of the exemplary embodiment of the utility model, the utility model it is other
Feature and its advantage will become apparent.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms the part of the application,
The schematic description and description of the utility model is not formed for explaining the utility model to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the structure diagram of the refrigeration system of the utility model embodiment.
Each reference numeral represents respectively：
1- compressors；2- condensers；3- throttle mechanisms；31- main expansion valves；32- capillaries；The first on-off control valves of 33-；
The second on-off control valves of 34-；The 3rd on-off control valves of 35-；4- evaporators；5- liquid storage devices；6- devices for drying and filtering；7- plate-type heat-exchanges
Device；8- expansion valves；9- solenoid valves.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
New and its application or any restrictions used.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
All other embodiments obtained under the premise of creative work are made, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, the component and positioned opposite, the digital table of step otherwise illustrated in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to be drawn according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, the technology, method and apparatus should be considered as awarding
Weigh part for specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：It is similar
Label and letter similar terms is represented in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
It need not be further discussed in attached drawing afterwards.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that spatially relative term is intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Refering to what is shown in Fig. 1, the throttle mechanism 3 of the utility model embodiment has the systems of the first refrigerant communication port FI and second
Cryogen communication port FO and including main throttling set, auxiliary throttling set and control device.Throttle mechanism have the first working condition and
Second working condition, in the first working condition, control device controls the refrigeration for entering throttle mechanism from the first refrigerant communication port
Agent flow to second refrigerant communication port by main throttling set；In the second working condition, control device circulates from the first refrigerant
The refrigerant of mouth into throttle mechanism flow to second refrigerant communication port by the main throttling set and auxiliary throttling set of series connection.
It, can when refrigeration system is in High Pressure Difference operating mode when the throttle mechanism of the utility model embodiment is used for refrigeration system
Throttle mechanism 3 to be controlled to be in the second working condition so that the condensed refrigerant of condenser first passes through auxiliary throttling set and carries out
Once throttling reduces its pressure, is then throttled again by main throttling set, that is to say, that the section of the utility model embodiment
Stream mechanism, which carries out refrigerant throttling step by step, gradually reduces its pressure, only passes through so as to improve refrigeration system of the prior art
Expansion valve carries out the problem of once noise existing for throttling is larger.Section can be controlled when refrigeration system is in normal pressure difference operating mode
Stream mechanism, which is in the first working condition, makes the condensed refrigerant of condenser only carry out throttling normal regulating by main throttling set
The quantity delivered of refrigerant.To sum up, the throttle mechanism of the utility model embodiment improves the throttling of refrigeration system of the prior art
The problem of existing throttling noise of device is larger.
The control method of the refrigeration system of the utility model embodiment, includes the following steps：
Obtain the current pressure difference between the pressure at expulsion of compressor and pressure of inspiration(Pi)；
According to current pressure difference throttle mechanism is controlled to be in the first working condition or the second working condition.
The control method of the refrigeration system of the utility model embodiment can be according to the current working of refrigeration system to throttling
The working condition of mechanism is controlled, so as to fulfill the reduction of throttling noise.
Below according to Fig. 1 to the structure of throttle mechanism of one specific embodiment of the utility model and the structure of refrigeration system
It is described in detail.
In the present embodiment, refrigeration system is container refrigeration system.
As shown in Figure 1, in the present embodiment, refrigeration system includes sequentially connected compressor 1, condenser 2, throttle mechanism
3 and evaporator 4.
Throttle mechanism 3 includes the first refrigerant communication port FI, second refrigerant communication port FO and is arranged at the first refrigeration
Main throttling set and auxiliary throttling set between agent communication port FI and second refrigerant communication port FO.Specifically in the present embodiment,
Main throttling set is main expansion valve 31, and auxiliary throttling set is capillary 32.Certainly, in the unshowned embodiment of other accompanying drawings,
Main throttling set can also be capillary, and auxiliary throttling set can be expansion valve.
Main expansion valve 31 has first port and second port.The second port of main expansion valve 31 circulates with second refrigerant
Mouth FO connections.Throttle mechanism 3 includes be arranged between the first refrigerant communication port FI and the first port of main expansion valve 31 the
One flow path and second flow path.Capillary 32 is arranged in second flow path.In the first working condition, control device control first flow path
Connection and second flow path disconnection.In the second working condition, control device control first flow path disconnects and second flow path connects.
Specifically, control device includes the first on-off valve 33 being arranged in first flow path and is arranged in second flow path
Second on-off valve 34.In the first working condition, the first on-off valve 33 of control is in connected state and controls the second on-off valve 34
It is off so that the first refrigerant communication port FI is connected by first flow path with the first port of main expansion valve 31.
During the second working condition, control the second on-off valve 34 be in connected state and control the first on-off valve 33 be off thus
The first refrigerant communication port FI is made to be connected by second flow path with the first port of main expansion valve 31.
Specifically in the present embodiment, the first port of capillary 32 is connected with the first refrigerant communication port, the second on-off valve
34 are arranged between the second port of capillary 32 and the first port of main expansion valve 31.
In a unshowned embodiment of attached drawing, the second port of capillary 32 is connected with main expansion valve 31, at this point, control
Device processed can include the on-off valve being arranged between the first port of capillary 32 and the first refrigerant communication port.Control device
It can also include reversal valve.The import of reversal valve is connected with the first refrigerant communication port FI, and the first outlet of reversal valve and master are swollen
The first port connection of swollen valve 31, the second outlet of reversal valve are connected with capillary 32.Reversal valve has first position and second
Position, in first position, the import of reversal valve is connected with first outlet, at this time the of the first refrigerant communication port and main expansion valve
Single port connects；In the second position, the import of reversal valve is connected with second outlet, and the first refrigerant communication port passes through capillary at this time
Pipe 32 connects to realize and throttles to reduce throttling noise step by step with the first port of main expansion valve 31.
Preferably, the throttle mechanism of the present embodiment also has the 3rd working condition.In the 3rd working condition, freeze from first
The refrigerant that agent communication port enters throttle mechanism flow to second refrigerant communication port by main expansion valve and capillary respectively.At this
When the degree of superheat of the refrigeration system of embodiment is higher, throttle mechanism can be controlled to be in the 3rd working condition so that condenser is cold
Refrigerant liquid after solidifying, together into evaporator, so that refrigeration system feed flow is sufficient, is protected by capillary and main expansion valve
Demonstrate,prove refrigerating capacity.
Specifically in the present embodiment, the first port of capillary 32 is connected with the first refrigerant communication port.Throttle mechanism is also
Including the 3rd flow path being arranged between the second port of capillary 32 and second refrigerant communication port.In the first working condition
When, control device control first flow path connects and the 3rd flow path of control disconnects；In three working conditions, control device control the
One fluid communication and the 3rd fluid communication of control.
Specifically, the control device of the present embodiment, which further includes, is arranged at the second port of capillary 32 and second refrigerant stream
The 3rd on-off valve 35 between port.It is more than or equal to setting suction superheat angle value model in the current suction superheat angle value of refrigeration system
During the maximum enclosed, the second on-off valve 34 of control is off, and controls the first on-off valve 33 and the 3rd on-off valve 35
In connected state so that first flow path is connected with the 3rd flow path.Refrigerant passes through capillary 32 and main expansion valve 31 at this time
Evaporator is flow to jointly, so as to which the liquid supply rate of evaporator be effectively ensured.
Preferably, the refrigeration system of the present embodiment further includes detection device.Detection device is used to obtain the suction of refrigeration system
Atmospheric pressure P0, pressure at expulsion Pe and suction temperature T0.
The control method of the refrigeration system of the present embodiment, includes the following steps：
Obtain working as between the current suction superheat angle value of compressor and the pressure at expulsion Pe of compressor and pressure of inspiration(Pi) P0
Preceding pressure difference value；
According to current suction superheat angle value and current pressure difference control throttle mechanism whether in the first working condition or
Whether the second working condition is in.
Specifically, according to current suction superheat angle value and current pressure difference control throttle mechanism whether in the first work
Whether state includes in the second working condition：
It is controlled and saved according to current pressure difference when current suction superheat angle value is in the range of setting suction superheat angle value
Whether mechanism is flowed in the first working condition or whether in the second working condition.
It is specific as follows：If current pressure difference is less than set pressure differential value, control refrigeration system is in the first working condition；
If current pressure difference is not less than set pressure differential value, control throttle mechanism is in the second working condition.
Specifically in the present embodiment, if current pressure difference is less than set pressure differential value, the first on-off control valve 33 is controlled
Connection, the second on-off control valve 34 and the 3rd on-off control valve 35 disconnect, and refrigerant is only entered by main expansion valve 31 and steamed at this time
Send out device, since the small refrigeration system feed flow of pressure difference is normal at this time, main expansion valve 31 can normal regulating refrigerant quantity delivered, refrigeration system
It unites stable.If current pressure difference is not less than set pressure differential value, the first on-off control valve and the control of the 3rd break-make are controlled
Valve disconnect, and control the second on-off control valve 34 connect, at this time the condensed refrigerant liquid of condenser first pass through capillary into
Once throttling reduces its pressure to row, is then generated again by main expansion valve so as to reduce when refrigerant liquid passes through main expansion valve
Noise.
It is not in current suction superheat angle value in the range of setting suction superheat angle value, control method is as follows：It is inhaled currently
When gas super heat value is less than or equal to the minimum value of setting suction superheat angle value scope, control throttle mechanism is in the first work shape
State；When current suction superheat angle value is more than or equal to the maximum of setting suction superheat angle value scope, control throttle mechanism is in
3rd working condition.
If current suction superheat angle value is more than or equal to the maximum of setting suction superheat angle value scope, the first break-make control is controlled
Valve 33 processed connects with the 3rd on-off control valve 35 and the second on-off control valve 34 is controlled to disconnect, so that the refrigeration of condenser output
Agent liquid, together into evaporator, the refrigeration of refrigeration system is enough to ensure that so as to ensure that feed flow fills by main expansion valve and capillary
Ability.If current suction superheat angle value is less than or equal to the minimum value of setting suction superheat angle value scope, the first break-make control is controlled
Valve 33 processed connects and controls the second on-off control valve 34 and the 3rd on-off control valve 35 disconnects so that refrigeration system leans on main expansion
Valve controls.
Preferably, inhaled when the current suction superheat angle value that refrigeration system continuously acquires in first time period is in setting
In the range of gas super heat value, the working condition of throttle mechanism is controlled according to current pressure difference.
When the current suction superheat angle value that refrigeration system continuously acquires in second time period is less than or equal to setting air-breathing mistake
The minimum value of hot value scope then controls the first on-off control valve 33 to connect and control the second on-off control valve 34 and the 3rd break-make
Control valve 35 disconnects so that refrigeration system is controlled by main expansion valve.
When the current suction superheat that refrigeration system continuously acquires within the 3rd period is more than or equal to setting suction superheat
The maximum of angle value scope, the first on-off control valve 33 of control connect with the 3rd on-off control valve 35 and the second break-make are controlled to control
Valve 34 disconnects, so that the refrigerant liquid of condenser output enters evaporator together by main expansion valve and capillary, so as to
Ensure that feed flow fills the refrigerating capacity for being enough to ensure that refrigeration system.
Specifically in the present embodiment, first time period is 1 minute, and second time period and the 3rd period are 10 minutes.
To sum up, the control method of the refrigeration system of the present embodiment is using the decision condition of current suction superheat angle value as preferential item
Part.It is controlled and saved according to current suction superheat angle value when current suction superheat angle value is not in the range of setting suction superheat angle value
Stream mechanism is in the first working condition or the 3rd working condition.Setting suction superheat angle value model is in current suction superheat angle value
According to current pressure difference throttle mechanism is controlled to be in the first working condition or the second working condition when enclosing interior.
As shown in Figure 1, the refrigeration system of the present embodiment further includes second vapor injection device.Second vapor injection device includes board-like change
Hot device 7, expansion valve 8 and solenoid valve 9.Compressor 1 has gas supplementing opening.Opening solenoid valve 9 when compressor needs tonifying Qi makes part
The refrigerant liquid of high temperature and pressure carries out the refrigerant liquid of reducing pressure by regulating flow formation low-temp low-pressure by expansion valve 8, this part is low
The refrigerant liquid of warm low pressure carries out heat exchange by the refrigerant liquid of plate heat exchanger 7 and high temperature and pressure again and forms low-temp low-pressure
Refrigerant gas enter the gas supplementing opening of compressor tonifying Qi carried out to compressor.
The refrigeration system of the present embodiment further includes the liquid storage device 5 being arranged between condenser 2 and second vapor injection device and does
Dry filter 6.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
Among scope.
Claims (10)
1. a kind of throttle mechanism, which is characterized in that the throttle mechanism has the first refrigerant communication port and second refrigerant stream
Port and including main throttling set, auxiliary throttling set and control device, the throttle mechanism has the first working condition and second
Working condition, in first working condition, the control device control enters the section from the first refrigerant communication port
The refrigerant of stream mechanism flow to the second refrigerant communication port by the main throttling set；In second working condition,
Refrigerant of the control device control from the first refrigerant communication port into the throttle mechanism passes through described in series connection
Main throttling set and the auxiliary throttling set flow to the second refrigerant communication port.
2. throttle mechanism according to claim 1, which is characterized in that the main throttling set has first port and second
Port, the throttle mechanism (3) further include the first end for being arranged at the first refrigerant communication port and the main throttling set
First flow path and second flow path between mouthful, the auxiliary throttling set are arranged in the second flow path, the main throttling set
Second port connected with the second refrigerant communication port, in first working condition, described in the control device control
First flow path connects and the second flow path is controlled to disconnect；In second working condition, the control device control described the
One flow path disconnects and the second flow path is controlled to connect.
3. throttle mechanism according to claim 2, which is characterized in that the control device includes being arranged at described first-class
Road is to control the first on-off valve (33) of the break-make of the first flow path and be arranged in the second flow path with described in control
The second on-off valve (34) of the break-make of second flow path.
4. throttle mechanism according to claim 3, which is characterized in that second on-off valve (34) is arranged at the main section
Between the first port and the auxiliary throttling set that flow device.
5. throttle mechanism according to claim 4, which is characterized in that the control device, which further includes, is arranged at the auxiliary section
Flow the 3rd on-off valve (35) between device and the second refrigerant communication port.
6. throttle mechanism according to claim 1, which is characterized in that the main throttling set includes expansion valve or capillary
Pipe；And/or the auxiliary throttling set includes expansion valve or capillary.
7. throttle mechanism according to any one of claim 1 to 6, which is characterized in that the throttle mechanism also has the
Three working conditions, in the 3rd working condition, the control device control is from described in the first refrigerant communication port entrance
The refrigerant of throttle mechanism flows to the second refrigerant by the main throttling set and the auxiliary throttling set respectively and circulates
Mouthful.
8. the throttle mechanism according to any one of claim 2 to 5, which is characterized in that the throttle mechanism also has the
Three working conditions, in the 3rd working condition, the control device control is from described in the first refrigerant communication port entrance
The refrigerant of throttle mechanism flows to the second refrigerant by the main throttling set and the auxiliary throttling set respectively and circulates
Mouthful, the auxiliary throttling set has first port and second port, the first port of the auxiliary throttling set and the described first system
Cryogen communication port connects, and the throttle mechanism further includes the second port and the described second refrigeration for being arranged at the auxiliary throttling set
The 3rd flow path between agent communication port, in first working condition, the control device controls the 3rd flow path to disconnect；
3rd working condition, the control device control the first flow path connection and control the 3rd fluid communication.
9. a kind of refrigeration system, which is characterized in that including appointing in sequentially connected compressor, condenser, such as claim 1 to 8
Throttle mechanism and evaporator described in one, the first refrigerant communication port are connected with the condenser, second refrigeration
Agent communication port is connected with the evaporator.
10. refrigeration system according to claim 9, which is characterized in that the refrigeration system includes container refrigeration system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233019.6U CN207407553U (en) | 2017-09-25 | 2017-09-25 | Throttling mechanism and refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721233019.6U CN207407553U (en) | 2017-09-25 | 2017-09-25 | Throttling mechanism and refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207407553U true CN207407553U (en) | 2018-05-25 |
Family
ID=62406150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721233019.6U Active CN207407553U (en) | 2017-09-25 | 2017-09-25 | Throttling mechanism and refrigerating system |
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| Country | Link |
|---|---|
| CN (1) | CN207407553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477928A (en) * | 2017-09-25 | 2017-12-15 | 珠海格力电器股份有限公司 | Throttling mechanism, refrigeration system and control method of refrigeration system |
-
2017
- 2017-09-25 CN CN201721233019.6U patent/CN207407553U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477928A (en) * | 2017-09-25 | 2017-12-15 | 珠海格力电器股份有限公司 | Throttling mechanism, refrigeration system and control method of refrigeration system |
| CN107477928B (en) * | 2017-09-25 | 2023-08-22 | 珠海格力电器股份有限公司 | Throttle mechanism, refrigerating system and control method of refrigerating system |
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