CN107328144A - Mass dryness fraction control method and evaporator in a kind of pipe of evaporator - Google Patents
Mass dryness fraction control method and evaporator in a kind of pipe of evaporator Download PDFInfo
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- CN107328144A CN107328144A CN201710720251.0A CN201710720251A CN107328144A CN 107328144 A CN107328144 A CN 107328144A CN 201710720251 A CN201710720251 A CN 201710720251A CN 107328144 A CN107328144 A CN 107328144A
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- dryness fraction
- mass dryness
- evaporator
- header
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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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of evaporator, including heat exchanger tube, with the first header and the second header for being separately positioned on heat exchanger tube both sides, inlet ducts and delivery channel are provided with evaporator, inside first header and the second header dividing plate is also respectively provided with along the direction vertical with the axis of heat exchanger tube, dividing plate on any one first header mutually staggers with the dividing plate on the second header, and evaporator is divided into serpentine pathway by dividing plate, connecting line is additionally provided with the first header and/or the second header, connecting line includes first end and the second end, and first end is connected to the upstream of serpentine pathway, second end is connected to the downstream of serpentine pathway, between first end and the second end at least between be separated with a dividing plate, pressure supply unit is additionally provided with connecting line, the upstream of serpentine pathway and the downstream of serpentine pathway are also respectively provided with the mass dryness fraction detection means for detecting working medium mass dryness fraction.The invention also discloses mass dryness fraction control method in a kind of pipe of evaporator.
Description
Technical field
The present invention relates to air-conditioning technical field, mass dryness fraction control method and evaporator in more particularly to a kind of pipe of evaporator.
Background technology
With the development and the improvement of people's living standards of social economy, air conditioner industry is also developed rapidly, still
Air conditioning energy consumption is also in rising year by year.For a complete refrigeration system, evaporator is one of its important part, is steamed
The quality of device performance is sent out, the quality of whole performance of refrigerant systems is directly influenced.It is experimentally confirmed, is cooled back in evaporator
On the premise of the mass flow of the working medium on road is certain, the coefficient of heat transfer of working medium changes with the change of itself mass dryness fraction, working medium
Mass dryness fraction is different, and the coefficient of heat transfer is different, and the unit interval, systemic heat was also different, thus the heat exchange efficiency of evaporator is just different.
Current evaporator is typically made up of heat exchanger tube and header, and working media enters from inlet ducts, by being arranged on
After heat exchanger tube in evaporator is exchanged heat, directly flowed out from delivery channel, so that the heat exchange of evaporator is realized, but in working medium
In flow process, it is impossible to which the mass dryness fraction to working medium control effectively, thus cause the evaporator heat exchange efficiency of this kind of structure compared with
It is low, cause the satisfaction of customer to decline.
Therefore, a kind of evaporator, effective improving heat exchanging efficiency how are provided, so that the satisfaction for lifting customer is this area
The technical problem of technical staff's urgent need to resolve.
The content of the invention
In view of this, it is an object of the invention to provide a kind of evaporator, effective improving heat exchanging efficiency, so as to lift customer
Satisfaction.
Another object of the present invention, which is also resided in, provides mass dryness fraction control method in a kind of pipe of evaporator.
To achieve the above object, the present invention provides following technical scheme：
A kind of evaporator, including heat exchanger tube, and it is separately positioned on the first header and the second header of the heat exchanger tube both sides,
Edge inside inlet ducts and delivery channel, first header and second header is provided with the evaporator to change with described
The vertical direction of the axis of heat pipe is also respectively provided with the dividing plate on dividing plate, any one first header with described
The dividing plate on two headers mutually staggers, and the evaporator is divided into serpentine pathway by the dividing plate, described first
It is additionally provided with connecting line on case and/or second header, the connecting line includes first end and the second end, and described the
One end is connected to the upstream of the serpentine pathway, and second end is connected to the downstream of the serpentine pathway, the first end and
Between second end at least between be separated with a dividing plate, the connecting line and be additionally provided with pressure supply unit, it is described
The upstream of serpentine pathway and the downstream of the serpentine pathway are also respectively provided with the mass dryness fraction detection means for detecting working medium mass dryness fraction.
It is preferred that, the first end can directly be connected with the inlet ducts by the header of the same side.
It is preferred that, the inlet ducts and the delivery channel are arranged on the homonymy of the evaporator, or the import
Conduit and the delivery channel are arranged on the both sides of the evaporator.
It is preferred that, the connecting line includes the connecting line of identical first and the second connecting line, and described first connects
The two ends on adapter road are separately positioned on first header, and the two ends of second connecting line are separately positioned on described second
On header.
It is preferred that, when the inlet ducts and the delivery channel are arranged on the homonymy of the evaporator, the connection
Pipeline includes the first connecting line and the second connecting line, and the two ends of first connecting line are respectively communicated with the import and led
Pipe and first header, the two ends of second connecting line are respectively communicated with second header.
It is preferred that, when the inlet ducts and the delivery channel are arranged on the homonymy of the evaporator, the connection
Pipeline includes the first connecting line and the second connecting line, and the two ends of first connecting line are respectively communicated with the import and led
Pipe and first header, second connecting line connect second header and the delivery channel.
It is preferred that, the pressure supply unit is hydraulic pump, or is check valve.
Mass dryness fraction control method in a kind of pipe of evaporator as described above, including：
The mass dryness fraction of the working medium of the upstream of the serpentine pathway is detected, when the mass dryness fraction of the working medium is less than default mass dryness fraction value,
The pressure supply unit is controlled to open, so that the working medium in the serpentine pathway downstream is delivered to the upstream of the serpentine pathway；
The mass dryness fraction of the working medium in the downstream of the serpentine pathway is detected, when the mass dryness fraction of the working medium is higher than default mass dryness fraction value,
The pressure supply unit is controlled to open, so that the working medium of the serpentine pathway upstream is delivered to the downstream of the serpentine pathway.
It is preferred that, in addition to, when the mass dryness fraction of the working medium is default mass dryness fraction value, control the pressure supply unit to close
Close.
It is preferred that, the default mass dryness fraction value is between 0.4-0.8.
As can be seen from the above technical solutions, the evaporator disclosed in the embodiment of the present invention, including heat exchanger tube, and set respectively
Put and be provided with inlet ducts and delivery channel, the first header on the first header and the second header in heat exchanger tube both sides, evaporator
With the second header inside along the direction vertical with the axis of heat exchanger tube be also respectively provided with dividing plate, any one first header every
Plate mutually staggers with the dividing plate on the second header, and evaporator is divided into serpentine pathway by dividing plate, in the first header and/or
Connecting line is additionally provided with two headers, connecting line includes first end and the second end, and first end is connected to serpentine pathway
Upstream, the second end is connected to the downstream of serpentine pathway, between first end and the second end at least between be separated with a dividing plate, connecting line
On be additionally provided with pressure supply unit, the upstream of serpentine pathway and the downstream of serpentine pathway are also respectively provided with for detecting working medium
The mass dryness fraction detection means of mass dryness fraction.
The mass dryness fraction of the working medium of mass dryness fraction detection means detection serpentine pathway upstream, when the mass dryness fraction for the working medium for detecting upstream is less than
During default mass dryness fraction value, controller control pressure feedway 9 is opened, so that the high mass dryness fraction working medium in serpentine pathway downstream is delivered to snake
The upstream of shape path, the low mass dryness fraction working medium with serpentine pathway upstream is mixed, and working medium mass dryness fraction is reached default mass dryness fraction value, so that
So that the working medium mass dryness fraction that upstream enters heat exchanger tube is improved so that the heat transfer coefficient increase of vaporizer upstream；Mass dryness fraction detection means is examined
The mass dryness fraction of the working medium in the downstream of serpentine pathway is surveyed, when the mass dryness fraction for detecting working medium is higher than default mass dryness fraction value, controller control pressure
Power feedway 9 is opened, so that the low mass dryness fraction working medium of serpentine pathway upstream is delivered to the downstream of serpentine pathway, with serpentine pathway
The high mass dryness fraction working medium of trip is mixed, and working medium mass dryness fraction is reached default mass dryness fraction value, so that downstream into the working medium of heat exchanger tube
Mass dryness fraction is reduced so that the heat transfer coefficient increase in evaporator downstream.Therefore, the device can be realized to upstream working medium and downstream working medium
Between direct regulation, need not move through the middle reaches of evaporator, thus the heat transfer coefficient of overall evaporator can be caused to increase so that
The heat exchange efficiency of evaporator can be effectively improved, is increased customer satisfaction degree.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below to embodiment or existing
The accompanying drawing used required in technology description is briefly described, it is clear that, drawings in the following description are only this hair
Bright embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to carrying
The accompanying drawing of confession obtains other accompanying drawings.
Fig. 1 is the structural representation of the evaporator disclosed in the embodiment of the present invention 1；
Fig. 2 is the structural representation of the evaporator disclosed in the embodiment of the present invention 2；
Fig. 3 is the structural representation of the evaporator disclosed in the embodiment of the present invention 3；
Fig. 4 is the structural representation of the evaporator disclosed in the embodiment of the present invention 4；
Fig. 5 is the mass dryness fraction variation tendency schematic diagram of the evaporator pipeline flow disclosed in the embodiment of the present invention；
Fig. 6 is the variation tendency schematic diagram of the evaporation air pipe flow heat transfer coefficient disclosed in the embodiment of the present invention.
Wherein, the specific name of each part is as follows：
1- heat exchanger tubes, the headers of 2- first, the headers of 3- second, 4- inlet ducts, 5- delivery channels, 6- dividing plates, 7- first connects
Adapter, the connecting tubes of 8- second, 9- pressure supply units.
Embodiment
In view of this, core of the invention is to provide a kind of evaporator, effective improving heat exchanging efficiency, so as to lift customer
Satisfaction.
Another core of the present invention, which is also resided in, provides mass dryness fraction control method in a kind of pipe of evaporator.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
As Figure 1-Figure 4, the evaporator disclosed in the embodiment of the present invention, including heat exchanger tube 1, and it is separately positioned on heat exchange
Inlet ducts 4 and delivery channel 5, the He of the first header 2 are provided with the first header 2 and the second header 3 of the both sides of pipe 1, evaporator
The inside of second header 3 is also respectively provided with dividing plate 6, any one first header 2 along the direction vertical with the axis of heat exchanger tube 1
Dividing plate mutually staggers with the dividing plate 6 on the second header 2, and evaporator is divided into serpentine pathway by dividing plate 6, in the first header 2
And/or second be additionally provided with connecting line on header 3, connecting line includes first end and the second end, and first end is connected to snake
The upstream of shape path, the second end is connected to the downstream of serpentine pathway, between first end and the second end at least between be separated with a dividing plate
6, pressure supply unit 9 is additionally provided with connecting line, and the upstream of serpentine pathway and the downstream of serpentine pathway are also respectively provided with
Mass dryness fraction detection means for detecting working medium mass dryness fraction.
It is to be understood that being the downstream at the upstream of serpentine pathway, delivery channel 5 for serpentine pathway at inlet ducts 4.
The mass dryness fraction of the working medium of mass dryness fraction detection means detection serpentine pathway upstream, when the mass dryness fraction for the working medium for detecting upstream is less than
During default mass dryness fraction value, controller control pressure feedway 9 is opened, so that the high mass dryness fraction working medium in serpentine pathway downstream is delivered to snake
The upstream of shape path, the low mass dryness fraction working medium with serpentine pathway upstream is mixed, and working medium mass dryness fraction is reached default mass dryness fraction value, so that
So that the working medium mass dryness fraction that upstream enters heat exchanger tube is improved so that the heat transfer coefficient increase of vaporizer upstream；Mass dryness fraction detection means is examined
The mass dryness fraction of the working medium in the downstream of serpentine pathway is surveyed, when the mass dryness fraction for detecting working medium is higher than default mass dryness fraction value, controller control pressure
Power feedway 9 is opened, so that the low mass dryness fraction working medium of serpentine pathway upstream is delivered to the downstream of serpentine pathway, with serpentine pathway
The high mass dryness fraction working medium of trip is mixed, and working medium mass dryness fraction is reached default mass dryness fraction value, so that downstream into the working medium of heat exchanger tube
Mass dryness fraction is reduced so that the heat transfer coefficient increase in evaporator downstream.
Therefore, the device can be realized to the direct regulation between upstream working medium and downstream working medium, need not move through evaporator
Middle reaches, thus the heat transfer coefficient of overall evaporator can be caused to increase, so as to can effectively improve the heat exchange efficiency of evaporator,
Increase customer satisfaction degree.
In addition, also realizing following technique effect：On the basis of integrally-regulated, further it refine to inside monomer heat exchanger
Regulation, the adjustable range of applying working condition is bigger, and the amplitude of accommodation is smaller；For the regulation of components of system as directed operating mode, pass through evaporator
The regulation of mass dryness fraction control is with regard to that can reach, so as to reduce system energy consumption, reduce unnecessary energy expenditure.
It should be noted that pressure supply unit 9 can be hydraulic pump, or check valve.
Further, the first end of connecting line can directly be connected with inlet ducts 4 by the header of the same side.Need solution
Release, the first end of connecting line can be connected with the first header 2 for being arranged on the same side, the first end of connecting line
The second header 3 that the same side can be arranged on is connected, that is to say, that dividing plate 6 is not provided between first end and inlet ducts.
It should be noted that inlet ducts 4 and delivery channel 5 can set the homonymy of evaporator, steaming can also be arranged on
The both sides of device are sent out, certainly, the convenience being easily installed, preferred inlet ducts 4 and delivery channel are arranged on the same of evaporator herein
Side.
Further, connecting tube includes identical the first connecting line 7 and the second connecting line 8, and the first connecting line 7
Two ends be separately positioned on the first header 2, the two ends of the second connecting line 8 are separately positioned on the second header 3.So set
Put, when needing to carry out mass dryness fraction regulation, the Working fluid flow in the first connecting line 7 can be adjusted as needed, or regulation the
Work flowing in two connecting lines 8, certainly, two connecting lines work simultaneously, can further increase mass dryness fraction regulation
Speed and scope.
It should be noted that when the conduit 5 of inlet ducts 4 and outlet is arranged on the homonymy of evaporator, connecting line bag
The first connecting line 7 and the second connecting line 8 are included, and the two ends of the first connecting line 7 are respectively communicated with inlet ducts 4 and first
Case 2, the two ends of the second connecting line 8 are respectively communicated with the second header 3.It is arranged such, the material of connecting line can be saved, installs
Set and more facilitate.
It should be noted that when inlet ducts 4 and delivery channel 5 are arranged on the homonymy of evaporator, connecting line includes
First connecting line 7 and the second connecting line 8, the two ends of the first connecting line 7 are respectively communicated with the header 2 of inlet ducts 4 and first,
Second connecting line 8 connects the second header 2 and delivery channel 5, is arranged such, can more accurately adjust the mass dryness fraction of working medium.
It should be noted that connecting line is round metal tube, of course, it is possible to be copper pipe, or aluminum pipe, due to copper
The material of pipe has sturdy and durable, corrosion resistant advantage, therefore preferred connecting tube is copper pipe herein.
In order to lift the heat transfer effect of evaporator, the fin of multiple increasing heat radiation areas is provided with the outer cup of heat exchanger tube 1.
The embodiment of the invention also discloses mass dryness fraction control method in a kind of pipe of evaporator, including：
The mass dryness fraction of the working medium of the upstream of serpentine pathway is detected, when the mass dryness fraction of working medium is less than default mass dryness fraction value, control pressure
Feedway 9 is opened, so that the working medium in serpentine pathway downstream is delivered to the upstream of serpentine pathway；
The mass dryness fraction of the working medium in the downstream of serpentine pathway is detected, when the mass dryness fraction of working medium is higher than default mass dryness fraction value, control pressure
Feedway 9 is opened, so that the working medium of serpentine pathway upstream is delivered to the downstream of serpentine pathway.
Mass dryness fraction control method in the pipe of evaporator disclosed in the embodiment of the present invention, in addition to, when the mass dryness fraction of working medium is pre-
If during mass dryness fraction value, control pressure feedway 9 is closed.
The mass dryness fraction of the working medium of mass dryness fraction detection means detection serpentine pathway upstream, when the mass dryness fraction for the working medium for detecting upstream is less than
During default mass dryness fraction value, controller control pressure feedway 9 is opened, so that the high mass dryness fraction working medium in serpentine pathway downstream is delivered to snake
The upstream of shape path, the low mass dryness fraction working medium with serpentine pathway upstream is mixed, and working medium mass dryness fraction is reached default mass dryness fraction value, so that
So that the working medium mass dryness fraction that upstream enters heat exchanger tube is improved so that the heat transfer coefficient increase of vaporizer upstream；Mass dryness fraction detection means is examined
The mass dryness fraction of the working medium in the downstream of serpentine pathway is surveyed, when the mass dryness fraction for detecting working medium is higher than default mass dryness fraction value, controller control pressure
Power feedway 9 is opened, so that the low mass dryness fraction working medium of serpentine pathway upstream is delivered to the downstream of serpentine pathway, with serpentine pathway
The high mass dryness fraction working medium of trip is mixed, and working medium mass dryness fraction is reached default mass dryness fraction value, so that downstream into the working medium of heat exchanger tube
Mass dryness fraction is reduced so that the heat transfer coefficient increase positioned at evaporator downstream；When mass dryness fraction detection means detects the work of serpentine pathway upstream
When matter mass dryness fraction and the working medium mass dryness fraction in serpentine pathway downstream are default mass dryness fraction value, controller control pressure feedway 9 is closed, this
When vaporizer upstream and evaporator downstream heat transfer coefficient it is optimal.
Therefore, the device can be realized to the direct regulation between upstream working medium and downstream working medium, need not move through evaporator
Middle reaches, thus the heat transfer coefficient of overall evaporator can be caused to increase, so as to can effectively improve the heat exchange efficiency of evaporator,
Increase customer satisfaction degree.
Fig. 5 and Fig. 6 are refer to, by working medium mass dryness fraction in the evaporator disclosed in conventional evaporator and the embodiment of the present invention
Understood with heat transfer coefficient variation tendency：
In conventional evaporator, the working medium mass dryness fraction positioned at upstream is relatively low, and heat transfer coefficient is smaller；Positioned at the work of middle reaches pipeline
Matter mass dryness fraction is higher, and heat transfer coefficient is optimal；Working medium mass dryness fraction positioned at downstream pipe is too high, and heat transfer deterioration causes heat transfer coefficient suddenly
Reduction.
In evaporator disclosed in this invention, the working medium mass dryness fraction positioned at upstream is raised suddenly, and heat transfer coefficient is carried
It is high；Working medium mass dryness fraction positioned at middle reaches pipeline is higher, and heat transfer coefficient is optimal；Working medium mass dryness fraction positioned at downstream pipe is reduced suddenly, is passed
Heat, which deteriorates, to be suppressed, and heat transfer coefficient is continually maintained in optimum value, and heat transfer deterioration is just entered after mass dryness fraction continues to rise to certain value,
Heat transfer coefficient is reduced.
Therefore, the evaporator disclosed in the embodiment of the present invention, by changing the mass dryness fraction of serpentine pathway internal working medium, makes upstream
The high mass dryness fraction working medium of low mass dryness fraction working medium and downstream be mutually mixed making up so that in the serpentine pathway of upstream and downstream
Heat transfer coefficient increase, finally makes the overall heat transfer coefficient increase of evaporator, further the heat exchange efficiency of lifting evaporator.
It should be noted that default mass dryness fraction value is arranged between 0.4-0.8, be arranged such, working medium mass dryness fraction value scope it
It is interior to increase heat transfer coefficient, and then improve heat exchange efficiency.
The evaporator that the embodiment of the present invention is provided can be finned evaporator, but be not limited to finned evaporator,
Or panel type evaporator, shell-and-tube evaporator etc..
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (10)
1. a kind of evaporator, including heat exchanger tube (1), and it is separately positioned on first header (2) and of the heat exchanger tube (1) both sides
Inlet ducts (4) and delivery channel (5) are provided with two headers (3), the evaporator, it is characterised in that first header
(2) dividing plate (6) and inside second header (3) along the direction vertical with the axis of the heat exchanger tube (1) is also respectively provided with,
The dividing plate (6) on any one first header (2) is mutually wrong with the dividing plate (6) on second header (2)
Open, and the evaporator is divided into serpentine pathway by the dividing plate (6), in first header (2) and/or second header
(3) connecting line is additionally provided with, the connecting line includes first end and the second end, and the first end is connected to the snake
The upstream of shape path, second end is connected to the downstream of the serpentine pathway, between the first end and second end extremely
It is separated between few on a dividing plate (6), the connecting line and is additionally provided with pressure supply unit (9), the serpentine pathway
Upstream and the downstream of the serpentine pathway are also respectively provided with the mass dryness fraction detection means for detecting working medium mass dryness fraction.
2. evaporator according to claim 1, it is characterised in that the first end can pass through with the inlet ducts (4)
The header of the same side is directly connected.
3. evaporator according to claim 1, it is characterised in that the inlet ducts (4) and the delivery channel (5) are set
The homonymy in the evaporator is put, or the inlet ducts (4) and the delivery channel (5) are arranged on the two of the evaporator
Side.
4. evaporator according to claim 1, it is characterised in that the connecting line includes the connecting line of identical first
(7) and the second connecting line (8), and the two ends of first connecting line (7) are separately positioned on first header (2),
The two ends of second connecting line (8) are separately positioned on second header (3).
5. evaporator according to claim 3, it is characterised in that when the inlet ducts (4) and the delivery channel (5)
When being arranged on the homonymy of the evaporator, the connecting line includes the first connecting line (7) and the second connecting line (8), and
The two ends of first connecting line (7) are respectively communicated with the inlet ducts (4) and first header (2), and described second connects
The two ends of adapter road (8) are respectively communicated with second header (3).
6. evaporator according to claim 3, it is characterised in that when the inlet ducts (4) and the delivery channel (5)
When being arranged on the homonymy of the evaporator, the connecting line includes the first connecting line (7) and the second connecting line (8), and
The two ends of first connecting line (7) are respectively communicated with the inlet ducts (4) and first header (2), and described second connects
Connect the second header (2) described in pipeline connection and the delivery channel (5).
7. evaporator according to claim 1, it is characterised in that the pressure supply unit (9) is hydraulic pump, Huo Zhewei
Check valve.
8. mass dryness fraction control method in a kind of pipe of evaporator as claimed in claim 1, it is characterised in that including：
The mass dryness fraction of the working medium of the upstream of the serpentine pathway is detected, when the mass dryness fraction of the working medium is less than default mass dryness fraction value, control
The pressure supply unit (9) is opened, so that the working medium in the serpentine pathway downstream is delivered to the upstream of the serpentine pathway；
The mass dryness fraction of the working medium in the downstream of the serpentine pathway is detected, when the mass dryness fraction of the working medium is higher than default mass dryness fraction value, control
The pressure supply unit (9) is opened, so that the working medium of the serpentine pathway upstream is delivered to the downstream of the serpentine pathway.
9. mass dryness fraction control method in the pipe of evaporator according to claim 8, it is characterised in that also include, when the work
When the mass dryness fraction of matter is default mass dryness fraction value, the pressure supply unit (9) is controlled to close.
10. mass dryness fraction control method in the pipe of evaporator according to claim 9, it is characterised in that the default mass dryness fraction value
For between 0.4-0.8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720251.0A CN107328144B (en) | 2017-08-21 | 2017-08-21 | Evaporator and method for controlling dryness in pipe thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710720251.0A CN107328144B (en) | 2017-08-21 | 2017-08-21 | Evaporator and method for controlling dryness in pipe thereof |
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| CN107328144A true CN107328144A (en) | 2017-11-07 |
| CN107328144B CN107328144B (en) | 2023-01-10 |
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| CN109900004A (en) * | 2019-02-20 | 2019-06-18 | 仲恺农业工程学院 | A kind of adjustable mass dryness fraction refrigeration system of the Two-stage Compression with injector |
| CN109900004B (en) * | 2019-02-20 | 2024-03-26 | 仲恺农业工程学院 | Two-stage compression adjustable dryness refrigerating system with ejector |
| CN110631391A (en) * | 2019-09-11 | 2019-12-31 | 广东工业大学 | Shell-and-tube phase-change heat exchanger with dryness regulation function |
| CN114838526A (en) * | 2022-05-26 | 2022-08-02 | 天津大学 | Double-working-medium shell-and-tube evaporator applied to organic Rankine cycle |
| CN114838526B (en) * | 2022-05-26 | 2024-02-09 | 天津大学 | Double-working-medium shell-and-tube evaporator applied to organic Rankine cycle |
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| CN107328144B (en) | 2023-01-10 |
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