CN102538314A - Air-conditioning device capable of maintaining system pressure difference - Google Patents
Air-conditioning device capable of maintaining system pressure difference Download PDFInfo
- Publication number
- CN102538314A CN102538314A CN2012100777143A CN201210077714A CN102538314A CN 102538314 A CN102538314 A CN 102538314A CN 2012100777143 A CN2012100777143 A CN 2012100777143A CN 201210077714 A CN201210077714 A CN 201210077714A CN 102538314 A CN102538314 A CN 102538314A
- Authority
- CN
- China
- Prior art keywords
- capillary
- pressure difference
- valve
- system pressure
- balanced valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 17
- 238000007710 freezing Methods 0.000 claims description 3
- 230000008014 freezing Effects 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 7
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000009467 reduction Effects 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air-conditioning device capable of maintaining system pressure difference, which comprises an indoor unit and an outdoor unit connected with each other through a first connection pipeline and a second connection pipeline. A capillary assembly is arranged in the first connection pipeline, a four-way valve is arranged in the second connection pipeline, another two ends of the four-way valve are connected with a loop, a compressor is connected into the loop, and a one-way valve is arranged in an exhaust pipe of the compressor. A bypass balanced valve is arranged between a capillary transition pipe in the capillary assembly and a connection pipe of the outdoor unit, the bypass balanced valve is connected with an electric control system through a control signal wire, and the control signal wire controls moving direction of the bypass balanced valve according to shutdown instructions and starting instructions of the electric control system so as to lead the capillary transition pipe to be plugged during refrigeration shutdown and connected during starting and lead the connection pipe of the outdoor unit to be plugged during heating shutdown and connected during starting. The air-conditioning device capable of maintaining system pressure difference is energy-saving, small in pressure difference fluctuation and liquid impact hidden danger and long in service life.
Description
Technical field
The present invention relates to the fixed frequency air conditioner technical field, relate in particular to a kind of aircondition that can keep system pressure difference.
Background technology
Fixed frequency air conditioner is meant the common air-conditioning machine that works in 220 volts of voltages, 50 hertz of frequencies; The supply voltage of its work and frequency keep immobilizing; The temperature adjustment principle that is adopted is: compressor rotary speed is constant basically, and dependence is constantly driven, stopped compressor and adjusts indoor temperature, so fixed frequency air conditioner of the prior art; It adopts the outdoor press of closing down to satisfy the energy requirement of indoor room basically; But open, shut down control so continually, will inevitably consume compressor and set up the needed significant amount of energy of system's pressure reduction, cause high energy consumption; And can't in time satisfy simultaneously user's energy requirement quickly, and when next air-conditioner started, owing to the transient fluctuation of pressure reduction, compressor can suck moist steam, and the hidden danger of liquid hammer is arranged, and this can influence the service life of air-conditioning system.
Summary of the invention
In view of this, the objective of the invention is to, a kind of aircondition that can keep system pressure difference is provided, reduce energy loss, improve refrigerating capacity, accelerate refrigerating speed, prolong the service life of air-conditioning system.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of aircondition that can keep system pressure difference; Comprise the indoor set and the off-premises station that connect through first connecting line and second connecting line, in first connecting line, be provided with capillary module, in second connecting line, be provided with cross valve; The other two ends of said cross valve are connected to a loop; Be connected with compressor in the said loop, the blast pipe of said compressor is provided with check valve, is provided with the bypass balanced valve between capillary transition conduit in the said capillary module and the off-premises station tube connector; Said bypass balanced valve is connected with electric-control system through control signal wire; Said control signal wire makes the obstruction of capillary transition conduit, conducting when starting shooting when freezing shutdown according to the halt instruction of electric-control system and the moving direction of start-up command control bypass balanced valve, makes to heat the obstruction of off-premises station tube connector, conducting when starting shooting when shutting down.
Preferably, said bypass balanced valve comprises sleeve pipe and is arranged on the valve body in the sleeve pipe.
Preferably, a side that connects a side of capillary transition conduit on the said valve body and connect the off-premises station tube connector respectively is provided with two through holes respectively.
Preferably, also comprise refrigerating capillary in the said capillary module and heat assisted capillary, said refrigerating capillary and heat assisted capillary all through a check valve and the conducting of capillary transition conduit.
Preferably, also be provided with a filter between said off-premises station tube connector and the capillary module.
Compared with prior art, the present invention is owing to be provided with the bypass balanced valve between capillary transition conduit and off-premises station tube connector, at the blast pipe of compressor check valve is set; This bypass balanced valve is connected with electric-control system through control signal wire; Control signal wire makes the obstruction of capillary transition conduit, conducting when starting shooting when freezing shutdown according to the halt instruction of electric-control system and the moving direction of start-up command control bypass balanced valve, makes to heat the obstruction of off-premises station tube connector, conducting when starting shooting when shutting down; Thereby behind starting of air conditioner; Compressor no longer need spend the pressure reduction of the system that sets up than the long time, and system just can move with comparatively stable refrigeration, the state of heating so at the beginning, improves refrigeration (heating) amount; Make that refrigeration (heating) is more quick, reach purpose of energy saving; Simultaneously, when compressor starts at next air-conditioner, sucks more stable low-pressure gas, pressure-difference fluctuation is little, and liquid hammer hidden danger is little, raising air-conditioning service life.
Description of drawings
Fig. 1 is the sketch map that can keep aircondition one preferred embodiment of system pressure difference of the present invention;
Fig. 2 is the sketch map that cooperates of capillary module and bypass balanced valve among Fig. 1;
Fig. 3 is that the A of bypass balanced valve among Fig. 2 is to cutaway view;
Among the figure, relevant Reference numeral is following:
1---compressor;
2---check valve;
3---cross valve;
4---off-premises station;
5---capillary module;
51---the capillary transition conduit;
52---refrigerating capillary;
53---heat assisted capillary;
54---check valve;
6---the bypass balanced valve;
61---bypass balanced valve sleeve pipe;
62---bypass balanced valve valve body;
62a---through hole;
63---control signal wire;
7---indoor set;
8---filter;
9---the off-premises station tube connector;
A---first connecting line;
B---second connecting line.
The specific embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, through concrete embodiment the present invention is done further detailed description below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 2, Fig. 3, the aircondition that can keep system pressure difference in the present embodiment comprises compressor, check valve 2, cross valve 3, off-premises station 4, capillary module 5 and bypass balanced valve 6, indoor set 7.Wherein be communicated with through the first connecting line a and the second connecting line b between indoor set 7 and the off-premises station 4; Capillary module 5 is arranged among the first connecting line a; It is other that bypass balanced valve 6 is arranged on capillary module 5; Cross valve 3 is arranged among the second connecting line b, and compressor 1 is connected with the two ends of cross valve through the loop, and the blast pipe of compressor 1 is provided with check valve 2.
Wherein, referring to Fig. 2, Fig. 3, bypass balanced valve 6 comprises bypass balanced valve sleeve pipe 61 and is arranged on a bypass balanced valve valve body 62 and a control signal wire 63 wherein that the every side on the bypass balanced valve valve body 61 is equipped with two through hole 62a.Control signal wire 63 is used for being connected with the electric-control system of aircondition, receives shutdown, start-up command from electric-control system, then controls the bypass balanced valve and moves.Capillary module 5 comprises capillary transition conduit 51, refrigerating capillary 52, heats assisted capillary 53, check valve 54; This capillary module is communicated with off-premises station tube connector 9 through filter 8, refrigerating capillary 52 and heat assisted capillary 53 and pass through check valve 54 and be communicated with capillary transition conduit 51.
In the present embodiment; The air-conditioner of off-premises station is when stopping and starting; Blast pipe through at compressor 1 is installed check valve 2; Bypass balanced valve 16 is installed between capillary transition conduit 8 and outdoor condenser tube connector 14, and is controlled the move left and right of bypass balanced valve, keep the purpose of indoor and outdoor pressure reduction with arrival through electric control system controls holding wire 13.
The process of refrigerastion of present embodiment is as shown in Figure 1, and the arrow direction is the flow direction of cold-producing medium among the figure: compressor 1 compression high-temperature high-pressure refrigerant, through check valve 2; And through cross valve 3 entering off-premises stations 4; Cold-producing medium is the high pressure cooling in the outside, and then through capillary module 5 throttlings, the cold-producing medium after the decrease temperature and pressure gets into indoor set 7; Evaporation through the indoor gets into compressor again, and repeats above process.
Heat process and refrigeration principle is roughly the same, just cross valve action and refrigerant flow direction change, and repeat no more here.
Fig. 2 is illustrated in the action of bypass balanced valve in the stopping process, and the arrow direction among the figure is the moving direction of bypass balanced valve: in the process of refrigerastion, high-pressure refrigerant is got in the capillary module through filter 8 by off-premises station tube connector 9; Through getting in the indoor set 7 through capillary transition conduit 51 after the throttling, after the electric-control system of aircondition receives the signal that needs to shut down, just in time lock to holding wire 63; This moment, the bypass balanced valve 6 was moved to the left, and its right-hand member still has can be through the passage of high-pressure refrigerant, and the left side originally can be through the channel jam of low pressure refrigerant; Like this after refrigeration is shut down; The outside still is maintained high pressure, and the indoor is maintained low pressure, after electric-control system receives the signal that compressor need restart; 6 of bypass balanced valves return to the origin-location again, continue refrigeration.
The process that heats is the same with the principle of process of refrigerastion, and just bypass balanced valve 6 moves right and keeps indoor and outdoor pressure reduction.
More than the present invention has been carried out detailed introduction, use concrete example in the literary composition principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (5)
1. the aircondition that can keep system pressure difference; Comprise the indoor set and the off-premises station that connect through first connecting line and second connecting line; In first connecting line, be provided with capillary module, in second connecting line, be provided with cross valve, it is characterized in that; The other two ends of said cross valve are connected to a loop; Be connected with compressor in the said loop, the blast pipe of said compressor is provided with check valve, is provided with the bypass balanced valve between capillary transition conduit in the said capillary module and the off-premises station tube connector; Said bypass balanced valve is connected with electric-control system through control signal wire; Said control signal wire makes the obstruction of capillary transition conduit, conducting when starting shooting when freezing shutdown according to the halt instruction of electric-control system and the moving direction of start-up command control bypass balanced valve, makes to heat the obstruction of off-premises station tube connector, conducting when starting shooting when shutting down.
2. the aircondition that can keep system pressure difference according to claim 1 is characterized in that, said bypass balanced valve comprises sleeve pipe and is arranged on the valve body in the sleeve pipe.
3. the aircondition that can keep system pressure difference according to claim 2 is characterized in that, a side that connects a side of capillary transition conduit on the said valve body and connect the off-premises station tube connector respectively is provided with two through holes respectively.
4. the aircondition that can keep system pressure difference according to claim 1; It is characterized in that; Also comprise refrigerating capillary in the said capillary module and heat assisted capillary, said refrigerating capillary and heat assisted capillary all through a check valve and the conducting of capillary transition conduit.
5. the aircondition that can keep system pressure difference according to claim 1 is characterized in that, also is provided with a filter between said off-premises station tube connector and the capillary module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077714.3A CN102538314B (en) | 2012-03-21 | 2012-03-21 | Air-conditioning device capable of maintaining system pressure difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077714.3A CN102538314B (en) | 2012-03-21 | 2012-03-21 | Air-conditioning device capable of maintaining system pressure difference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102538314A true CN102538314A (en) | 2012-07-04 |
| CN102538314B CN102538314B (en) | 2014-06-25 |
Family
ID=46345851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210077714.3A Active CN102538314B (en) | 2012-03-21 | 2012-03-21 | Air-conditioning device capable of maintaining system pressure difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102538314B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776191A (en) * | 2014-02-21 | 2014-05-07 | 广东志高暖通设备股份有限公司 | Multi-split air conditioner and heat pump system thereof |
| CN108050648A (en) * | 2017-11-29 | 2018-05-18 | 广东美的制冷设备有限公司 | Oil of air conditioner blocks up fault detection method and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5934094A (en) * | 1997-11-27 | 1999-08-10 | Denso Corporation | Vehicle air conditioning system with expansion valve control during high pressure cycle conditions |
| CN2762012Y (en) * | 2004-12-15 | 2006-03-01 | 广东美的电器股份有限公司 | Fast starting air conditioner |
| CN201508077U (en) * | 2009-09-25 | 2010-06-16 | 广东美的电器股份有限公司 | Air conditioner |
| CN201569077U (en) * | 2009-07-28 | 2010-09-01 | 广东志高空调有限公司 | Heat pump air conditioner |
| CN201637207U (en) * | 2010-03-01 | 2010-11-17 | 广东美的电器股份有限公司 | Quick refrigeration air conditioner |
-
2012
- 2012-03-21 CN CN201210077714.3A patent/CN102538314B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5934094A (en) * | 1997-11-27 | 1999-08-10 | Denso Corporation | Vehicle air conditioning system with expansion valve control during high pressure cycle conditions |
| CN2762012Y (en) * | 2004-12-15 | 2006-03-01 | 广东美的电器股份有限公司 | Fast starting air conditioner |
| CN201569077U (en) * | 2009-07-28 | 2010-09-01 | 广东志高空调有限公司 | Heat pump air conditioner |
| CN201508077U (en) * | 2009-09-25 | 2010-06-16 | 广东美的电器股份有限公司 | Air conditioner |
| CN201637207U (en) * | 2010-03-01 | 2010-11-17 | 广东美的电器股份有限公司 | Quick refrigeration air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103776191A (en) * | 2014-02-21 | 2014-05-07 | 广东志高暖通设备股份有限公司 | Multi-split air conditioner and heat pump system thereof |
| CN108050648A (en) * | 2017-11-29 | 2018-05-18 | 广东美的制冷设备有限公司 | Oil of air conditioner blocks up fault detection method and air conditioner |
| CN108050648B (en) * | 2017-11-29 | 2023-09-26 | 广东美的制冷设备有限公司 | Air conditioner oil blockage fault detection method and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102538314B (en) | 2014-06-25 |
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Effective date of registration: 20240326 Granted publication date: 20140625 |
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