CN205717533U - Air-conditioner - Google Patents
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- CN205717533U CN205717533U CN201620339168.XU CN201620339168U CN205717533U CN 205717533 U CN205717533 U CN 205717533U CN 201620339168 U CN201620339168 U CN 201620339168U CN 205717533 U CN205717533 U CN 205717533U
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- air
- valve port
- conditioner
- heat exchanger
- connecting tube
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Abstract
The open a kind of air-conditioner of this utility model, including: compressor, compressor has air vent and gas returning port；Commutation assembly, commutation assembly has the first valve port to the 4th valve port；Indoor heat exchanger, the first end of indoor heat exchanger and the 3rd valve port are connected；Outdoor heat exchanger, the first end of outdoor heat exchanger and the second valve port are connected；Connecting tube, connecting tube is connected between the second end and the restricting element of indoor heat exchanger, and the internal diameter of connecting tube is D, 2.5≤D ＜ 3.364 or 3.364 ＜ D ＜ 4.74.Air-conditioner of the present utility model, the charging amount of R290 cold-producing medium in air-conditioner can be reduced, thus improve the circulating mass of refrigerant of air-conditioner, and then the refrigerating capacity of raising air-conditioner and heating capacity are to optimize the performance of air-conditioner, can also improve the security performance of air-conditioner to a certain extent simultaneously.
Description
Technical field
This utility model relates to air-conditioning technical field, especially relates to a kind of air-conditioner.
Background technology
Usually, air-conditioner can use R290 as cold-producing medium, although R290 cold-producing medium in use will not be to environment
Polluting, but R290 cold-producing medium is inflammable and explosive cold-producing medium, this makes air-conditioner there is certain potential safety hazard, and
R290 cold-producing medium more in air-conditioner is unfavorable for the raising of circulating mass of refrigerant, and refrigerating capacity and heating capacity to air-conditioner can be produced
Raw certain impact.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this practicality is new
Type proposes a kind of air-conditioner, can reduce the charging amount to R290 cold-producing medium in described air-conditioner, improves cold-producing medium in air-conditioner
Circulating load.
According to the air-conditioner of this utility model embodiment, described air-conditioner uses R290 to include as cold-producing medium, air-conditioner: pressure
Contracting machine, described compressor has air vent and gas returning port；Commutation assembly, described commutation assembly has the first valve port to the 4th valve
One of them connection in mouth, described first valve port and the second valve port and the 3rd valve port, described 4th valve port and described second valve
Mouthful connecting with another in described 3rd valve port, described first valve port is connected with described air vent, described 4th valve port and institute
State gas returning port to be connected；Indoor heat exchanger, the first end of described indoor heat exchanger is connected with described 3rd valve port；Outdoor heat exchanger,
First end of described outdoor heat exchanger is connected with described second valve port, the second end of described outdoor heat exchanger and described indoor heat exchange
It is connected with restricting element between second end of device；Connecting tube, described connecting tube be connected to described indoor heat exchanger the second end and
Between described restricting element, the internal diameter of described connecting tube is that D, D meet: 2.5≤D ＜ 3.364,3.364 ＜ D ＜ 4.74.
According to the air-conditioner of this utility model embodiment, by connecting tube being connected to the second end and the throttling unit of indoor heat exchanger
Between part, and make the internal diameter of connecting tube meet: 2.5≤D ＜ 3.364 or 3.364 ＜ D ＜ 4.74, R290 in air-conditioner can be reduced
The charging amount of cold-producing medium, thus improve the circulating mass of refrigerant of air-conditioner, so improve the refrigerating capacity of air-conditioner and heating capacity with
Optimize the performance of air-conditioner, the security performance of air-conditioner can also be improved simultaneously to a certain extent.
Alternatively, described commutation assembly is cross valve.
Alternatively, described restricting element is capillary tube, heating power expansion valve or electric expansion valve.
According to embodiments more of the present utility model, air-conditioner also includes that reservoir, described reservoir are connected in described gas returning port
And between described 4th valve port.
According to embodiments more of the present utility model, the two ends of described connecting tube are respectively connecting to described room by transition conduit respectively
Second end of interior heat exchanger and described restricting element.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the air-conditioner according to some embodiments of this utility model；
Fig. 2 is the structural representation of the connecting tube according to some embodiments of this utility model；
Fig. 3 is the structural representation of the connecting tube according to some embodiments of this utility model.
Reference:
Air-conditioner 1000；
Off-premises station 100；Compressor 101；Air vent A；Gas returning port B；Commutation assembly 102；First valve port C；Second valve
Mouth D；3rd valve port E；4th valve port F；Outdoor heat exchanger 103；Restricting element 104；Reservoir 105；
Indoor set 200；Indoor heat exchanger 201；
Connecting tube 300；Transition conduit 301；Fixture 302.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to
The embodiment that accompanying drawing describes is exemplary, it is intended to be used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model, it is to be understood that orientation or the position relationship of the instruction such as term "left", "right" are base
In orientation shown in the drawings or position relationship, be for only for ease of description this utility model and simplify describe rather than instruction or
Hint indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that
To restriction of the present utility model.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing "
Should be interpreted broadly Deng term, connect for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be
Be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be to be joined directly together, it is also possible to by the indirect phase of intermediary
Even, can be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For
For those of ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
Employing R290 in correlation technique, as the air-conditioner of cold-producing medium, connects between indoor set and off-premises station and has connecting tube,
The internal diameter of the gas side connecting tube of connecting tube is 7.13-7.29mm, the internal diameter of hydraulic fluid side connecting tube and the internal diameter of gas side connecting tube
Ratio is 13.7-66.5%.Owing to the external diameter of the gas side connecting tube of existing 1HP air-conditioner is 9mm, internal diameter be 7.5-8mm it
Between, seldom use the gas side connecting tube in the range of a diameter of 7.13mm-7.29mm and when air-conditioner uses capillary-compensated,
The length of connecting tube is varied from, if hydraulic fluid side connecting tube uses capillary tube, can cause air-conditioner restriction effect with air-conditioner not
Coupling, affects refrigeration (hot) amount and the service life of air-conditioner.
Describing the air-conditioner 1000 according to this utility model embodiment below with reference to Fig. 1-Fig. 3, air-conditioner 1000 can make
With R290 as cold-producing medium, air-conditioner 1000 may be used for regulating indoor temperature, such as air-conditioner 1000 and may be used for
Heat to indoor environment or freeze.
As it is shown in figure 1, compressor 101, commutation group can be included according to the air-conditioner 1000 of this utility model embodiment
Part 102, indoor heat exchanger 201, outdoor heat exchanger 103 and connecting tube 300.
Specifically, compressor 101 has air vent A and gas returning port B, and the cold-producing medium after heat exchange can return from gas returning port B
Returning to compressor 101, cold-producing medium can be formed the cold-producing medium of High Temperature High Pressure after compressing in compressor 101, and from aerofluxus
Mouth A discharges.Wherein it should be noted that structure and operation principle about compressor 101 are by people in the art
Member is known, is the most no longer described in detail.
Commutation assembly 102 has the first valve port C to the 4th valve port F, wherein, the first valve port C and the second valve port D and
One of them connection in 3rd valve port E, another in the 4th valve port F and the second valve port D and the 3rd valve port E connects
Logical；In other words, when the first valve port C and the second valve port D connects, the 4th valve port F and the 3rd valve port E connection, when
During the first valve port C and the 3rd valve port E connection, the 4th valve port F and the second valve port D connection.It addition, the first valve port C
Being connected with air vent A, the 4th valve port F is connected with gas returning port B.
Preferably, commutation assembly 102 is cross valve, when commutation assembly 102 power-off, and the first valve port C and the second valve
Mouthful D connection, the 4th valve port F and the 3rd valve port E connects, when commutation assembly 102 is energized, the first valve port C and the
Three valve port E connections, the 4th valve port F and the second valve port D connection.But it is understood that, commutation assembly 102 is also
Other elements can be formed as, as long as there is the first valve port C to the 4th valve port F and can realizing commutating.
Owing to the first valve port C of commutation assembly 102 can connect with one of them in the second valve port D and the 3rd valve port E
To realize commutation, another in the 4th valve port F and the second valve port D and the 3rd valve port E connects to realize commutation, this
Air-conditioner 1000 can be changed between refrigeration mode and heating mode, it is achieved thereby that the system of air-conditioner 1000
Cold function and heat-production functions.
First end (such as, the left end shown in Fig. 1) of indoor heat exchanger 201 is connected with the 3rd valve port E, outdoor
First end (such as, the left end shown in Fig. 1) of heat exchanger 103 is connected with the second valve port D, outdoor heat exchanger 103
The second end (such as, the right-hand member shown in Fig. 1) and the second end of indoor heat exchanger 201 (such as, Fig. 1 shows
The right-hand member gone out) between be connected with restricting element 104, the cold-producing medium in refrigerant flow path can be carried out by restricting element 104
Reducing pressure by regulating flow.
Connecting tube 300 is connected between the second end of indoor heat exchanger 201 and restricting element 104.Specifically, connect
Pipe 300 can be connected to restricting element 104 by stop valve, herein it should be noted that the dependency structure of stop valve and work
Make principle and become prior art, the most no longer describe in detail.
As it is shown in figure 1, when air-conditioner 1000 is in refrigeration mode, the first valve port C and second of commutation assembly 102
Valve port D connects, the 3rd valve port E and the 4th valve port F connection, the refrigeration of the High Temperature High Pressure after compressor 101 compresses
Agent, through the air vent A of compressor 101, flows through the first valve port C and the second valve port D, enters into outdoor heat exchanger 103,
And carry out energy exchange with external environment in outdoor heat exchanger 103, the refrigerant flow direction restricting element 104 after heat exchange,
After restricting element 104 reducing pressure by regulating flow, form the liquid refrigerant of low-temp low-pressure, enter into indoor through connecting tube 300
Heat exchanger 201 with the heat in absorption chamber, reduces indoor temperature, the cold-producing medium after heat exchange by the 3rd valve port E and
4th valve port F, and return to compressor 101 by the gas returning port B of compressor 101, thus form kind of refrigeration cycle, with
This is reciprocal.
As it is shown in figure 1, when air-conditioner 1000 is in heating mode, the first valve port C and the 3rd of commutation assembly 102
Valve port E connection and the 4th valve port F and the second valve port D connection, the refrigeration of the High Temperature High Pressure after compressor 101 compresses
Agent, through the air vent A of compressor 101, flows through the first valve port C and the 3rd valve port E, enters into indoor heat exchanger 201,
And in indoor heat exchanger 201 with indoor environment heat exchange, form the liquid refrigerant of High Temperature High Pressure, Jing Guolian after heat exchange
Adapter 300, and enter into restricting element 104, after restricting element 104 reducing pressure by regulating flow, form the cold-producing medium of low-temp low-pressure,
Enter into outdoor heat exchanger 103, and in outdoor heat exchanger 103 with outdoor environment heat exchange, the cold-producing medium after heat exchange flows through
Second valve port D and the 4th valve port F, and return to compressor 101 through the gas returning port B of compressor 101, past with this
Multiple, form air-conditioner 1000 heats circulation.
Specifically, the caliber of connecting tube 300 is that D, D meet: 2.5≤D ＜ 3.364 or 3.364 ＜ D ＜ 4.74.Thus,
The charging amount of R290 cold-producing medium in air-conditioner 1000 can be reduced, thus improve the circulating mass of refrigerant of air-conditioner 1000, and then
The refrigerating capacity of raising air-conditioner 1000 and heating capacity, simultaneously can also be to a certain extent to optimize the performance of air-conditioner 1000
Improve security performance and the service life of air-conditioner 1000.
Air-conditioner 1000 according to this utility model embodiment, by being connected to the of indoor heat exchanger 201 by connecting tube 300
Between two ends and restricting element 104, and the internal diameter of connecting tube 300 is made to meet: 2.5≤D ＜ 3.364 or 3.364 ＜ D ＜ 4.74,
The charging amount of R290 cold-producing medium in air-conditioner 1000 can be reduced, thus improve the circulating mass of refrigerant of air-conditioner 1000, and then
The refrigerating capacity of raising air-conditioner 1000 and heating capacity, simultaneously can also be to a certain extent to optimize the performance of air-conditioner 1000
Improve the security performance of air-conditioner 1000.
In embodiments more of the present utility model, restricting element 104 is capillary tube, electric expansion valve or heating power expansion valve,
Thus, simple and reliable.
According to embodiments more of the present utility model, as it is shown in figure 1, air-conditioner 1000 also includes reservoir 105, reservoir
105 are connected between gas returning port B and the 4th valve port F.Thus, the cold-producing medium after heat exchange can flow after the 4th valve port F flows out
To reservoir 105, and the liquid refrigerant flowed in the cold-producing medium in reservoir 105 can be stored in reservoir 105, gas
State cold-producing medium can return to compressor 101 through gas returning port B, and this is not only easy to regulate the refrigerant flow in refrigerant flow path,
It is also prevented from compressor 101 and produces liquid hammer.
In embodiments more of the present utility model, as in figure 2 it is shown, the two ends of connecting tube 300 are respectively by transition conduit 301
It is respectively connecting to the second end and the restricting element 104 of indoor heat exchanger 201.Specifically, due to the caliber of connecting tube 300
Less, make the two ends of connecting tube 300 be respectively connecting to the second end and the joint of indoor heat exchanger 201 respectively by transition conduit 301
Fluid element 104, simple and reliable, and it is easy to the operation produced.Further, the transition conduit 301 at the two ends of connecting tube 300
The second end and the restricting element 104 of indoor heat exchanger 201 can be fixed to respectively by fixture 302 such as nut.
Certainly, this utility model is not limited to this, in other embodiments, as it is shown on figure 3, connecting tube 300 can also be directly
The second end and the restricting element 104 of indoor heat exchanger 201 it is fixed to by fixture 302 such as nut.
Specifically, as in figure 2 it is shown, the caliber of transition conduit 301 is gradually increased on the direction being directed away from connecting tube 300.
Below with reference to Fig. 1-Fig. 2, the concrete structure of the air-conditioner 1000 of one embodiment of this utility model is described in detail.
Air-conditioner 1000 in the present embodiment can be the air-conditioner 1000 of below 5HP.
As it is shown in figure 1, the air-conditioner 1000 of the present embodiment includes indoor set 200, off-premises station 100 and connecting tube 300,
Wherein connecting tube 300 is connected between indoor set 200 and off-premises station 100.
Specifically, off-premises station 100 includes compressor 101, commutation assembly 102, outdoor heat exchanger 103, restricting element
104 and reservoir 105.Indoor set 200 includes indoor heat exchanger 201.
Compressor 101 has air vent A and gas returning port B, and the cold-producing medium after heat exchange can return to compression from gas returning port B
Machine 101, cold-producing medium is formed the cold-producing medium of High Temperature High Pressure after compressing in compressor 101, and is discharged from air vent A.
Commutation assembly 102 has the first valve port C to the 4th valve port F, wherein, the first valve port C and the second valve port D and the 3rd
One of them connection in valve port E, another connection in the 4th valve port F and the second valve port D and the 3rd valve port E,
First valve port C is connected with air vent A, and the 4th valve port F is connected with gas returning port B, and reservoir 105 is connected in gas returning port B
With the 4th between valve port F.Commutation assembly 102 is cross valve.
First end of indoor heat exchanger 201 and the 3rd valve port E are connected, the first end of outdoor heat exchanger 103 and the second valve
Mouth D is connected, and is connected with above-mentioned throttling between the second end and second end of indoor heat exchanger 201 of outdoor heat exchanger 103
Element 104, restricting element 104 can be to the cold-producing medium reducing pressure by regulating flow in refrigerant flow path.Further, restricting element
104 is capillary tube.
Connecting tube 300 is connected between the second end of indoor heat exchanger 201 and restricting element 104.Specifically, connect
The caliber of pipe 300 is that D, D meet: 2.5≤D ＜ 3.364 or 3.364 ＜ D ＜ 4.74.Thus, air-conditioner 1000 can be reduced
The charging amount of middle R290 cold-producing medium, thus improve the circulating mass of refrigerant of air-conditioner 1000, and then improve air-conditioner 1000
Refrigerating capacity and heating capacity to optimize the performance of air-conditioner 1000, simultaneously can also improve air-conditioner 1000 to a certain extent
Security performance.
As in figure 2 it is shown, the two ends of connecting tube 300 are respectively connecting to the of indoor heat exchanger 201 respectively by transition conduit 301
Two ends and restricting element 104.Specifically, owing to the caliber of connecting tube 300 is less, make the two ends of connecting tube 300 respectively
The second end and the restricting element 104 of indoor heat exchanger 201 it is respectively connecting to by transition conduit 301, simple and reliable, Er Qiebian
In the operation produced.
In actual applications, inventor finds the R290 air-conditioner that refrigerating capacity is 3500W, by the connecting tube of 3m, in system
During thermal condition, it is the cold-producing medium of the full liquid supercooled state of High Temperature High Pressure in connecting tube, the refrigerant quality duty in connecting tube
Adjust about the 15% of device refrigerant charge, if but condensing pressure rising, the refrigerant quality in connecting tube accounts for air-conditioner refrigeration
The percentage ratio of agent charging amount is more, the liquid refrigerant being stored in connecting tube, has no heating capacity to help.
And inventor finds that the air-conditioner 1000 in use the present embodiment can reduce the refrigerant charge of about 4%, empty in other words
The circulating mass of refrigerant adjusting device 1000 can increase by 4%, and this refrigerating capacity that can promote air-conditioner 1000 and heating capacity, especially to system
Heat has bigger help.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " concrete example ",
Or specific features, structure, material or the feature bag that the description of " some examples " etc. means to combine this embodiment or example describes
It is contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be
Any one or multiple embodiment or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out
In conjunction with and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is example
Property, it is impossible to being interpreted as restriction of the present utility model, those of ordinary skill in the art can in the range of this utility model
Above-described embodiment be changed, revise, to replace and modification.
Claims (5)
1. an air-conditioner, described air-conditioner uses R290 as cold-producing medium, it is characterised in that including:
Compressor, described compressor has air vent and gas returning port；
Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port and the second valve port and the 3rd
One of them connection in valve port, described 4th valve port connects with another in described second valve port and described 3rd valve port,
Described first valve port is connected with described air vent, and described 4th valve port is connected with described gas returning port；
Indoor heat exchanger, the first end of described indoor heat exchanger is connected with described 3rd valve port；
Outdoor heat exchanger, the first end of described outdoor heat exchanger is connected with described second valve port, the second of described outdoor heat exchanger
It is connected with restricting element between end and the second end of described indoor heat exchanger；
Connecting tube, described connecting tube is connected between the second end of described indoor heat exchanger and described restricting element, described connection
The internal diameter of pipe is that D, D meet: 2.5≤D ＜ 3.364 or 3.364 ＜ D ＜ 4.74.
Air-conditioner the most according to claim 1, it is characterised in that described commutation assembly is cross valve.
Air-conditioner the most according to claim 1, it is characterised in that described restricting element is capillary tube, heating power expansion valve
Or electric expansion valve.
Air-conditioner the most according to claim 1, it is characterised in that also include that reservoir, described reservoir are connected in institute
State between gas returning port and described 4th valve port.
Air-conditioner the most according to claim 1, it is characterised in that the two ends of described connecting tube are divided by transition conduit respectively
It is not connected to the second end of described indoor heat exchanger and described restricting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620339168.XU CN205717533U (en) | 2016-04-20 | 2016-04-20 | Air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620339168.XU CN205717533U (en) | 2016-04-20 | 2016-04-20 | Air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205717533U true CN205717533U (en) | 2016-11-23 |
Family
ID=57294833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620339168.XU Active CN205717533U (en) | 2016-04-20 | 2016-04-20 | Air-conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205717533U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918162A (en) * | 2017-03-29 | 2017-07-04 | 广东美的制冷设备有限公司 | Air-conditioner |
| CN106958892A (en) * | 2017-03-29 | 2017-07-18 | 广东美的制冷设备有限公司 | Air-conditioner |
-
2016
- 2016-04-20 CN CN201620339168.XU patent/CN205717533U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106918162A (en) * | 2017-03-29 | 2017-07-04 | 广东美的制冷设备有限公司 | Air-conditioner |
| CN106958892A (en) * | 2017-03-29 | 2017-07-18 | 广东美的制冷设备有限公司 | Air-conditioner |
| CN106958892B (en) * | 2017-03-29 | 2020-05-05 | 广东美的制冷设备有限公司 | Air conditioner |
| CN106918162B (en) * | 2017-03-29 | 2020-07-28 | 广东美的制冷设备有限公司 | Air conditioner |
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| GR01 | Patent grant |