CN102538314B - Air-conditioning device capable of maintaining system pressure difference - Google Patents
Air-conditioning device capable of maintaining system pressure difference Download PDFInfo
- Publication number
- CN102538314B CN102538314B CN201210077714.3A CN201210077714A CN102538314B CN 102538314 B CN102538314 B CN 102538314B CN 201210077714 A CN201210077714 A CN 201210077714A CN 102538314 B CN102538314 B CN 102538314B
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- Prior art keywords
- capillary
- pressure difference
- valve
- system pressure
- balanced valve
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- 238000004378 air conditioning Methods 0.000 title abstract description 7
- 230000007704 transition Effects 0.000 claims abstract description 17
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 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
- 239000003507 refrigerant Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 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
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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- 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 fixed frequency air conditioner technical field, relate in particular to a kind of aircondition that can maintain system pressure difference.
Background technology
Fixed frequency air conditioner refers to 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 adopting is: compressor rotary speed is substantially constant, dependence is constantly driven, is stopped compressor and adjusts indoor temperature, so fixed frequency air conditioner of the prior art, it adopts the outdoor press of closing down to meet the energy requirement of indoor room substantially, but open so continually, shut down control, will inevitably consume compressor and set up the needed large energy of system pressure difference, cause high energy consumption; And can't meet quickly in time user's energy requirement simultaneously, and in the time that next air-conditioner starts, due to the transient fluctuation of pressure reduction, compressor can suck moist steam, has the hidden danger of liquid hammer, and this can affect the service life of air-conditioning system.
Summary of the invention
In view of this, the object of the invention is to, a kind of aircondition that can maintain system pressure difference is provided, reduce energy loss, improve refrigerating capacity, accelerate refrigerating speed, extend 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 maintain system pressure difference, comprise the indoor set and the off-premises station that connect by the first connecting line and the second connecting line, in the first connecting line, be provided with capillary module, in the second connecting line, be provided with cross valve, the other two ends of described cross valve are connected to a loop, in described loop, be connected with compressor, the blast pipe of described compressor is provided with check valve, between capillary transition conduit in described capillary module and off-premises station tube connector, be provided with bypass balanced valve, described bypass balanced valve is connected with electric-control system by control signal wire, described control signal wire is according to the moving direction of the halt instruction of electric-control system and start-up command control bypass balanced valve, when refrigeration is shut down, capillary transition conduit is stopped up, conducting when start, making to heat off-premises station tube connector while shutdown stops up, conducting when start.
Preferably, described bypass balanced valve comprises sleeve pipe and is arranged on the valve body in sleeve pipe.
Preferably, a side that connects a side of capillary transition conduit on described valve body and connect off-premises station tube connector is respectively provided with respectively two through holes.
Preferably, in described capillary module, also comprise refrigerating capillary and heat assisted capillary, described refrigerating capillary and heat assisted capillary all by a check valve and the conducting of capillary transition conduit.
Preferably, between described off-premises station tube connector and capillary module, be also provided with a filter.
Compared with prior art, the present invention is owing to being provided with bypass balanced valve between capillary transition conduit and off-premises station tube connector, blast pipe at compressor arranges check valve, this bypass balanced valve is connected with electric-control system by control signal wire, control signal wire is according to the moving direction of the halt instruction of electric-control system and start-up command control bypass balanced valve, when refrigeration is shut down, capillary transition conduit is stopped up, conducting when start, making to heat off-premises station tube connector while shutdown stops up, conducting when start, thereby after starting of air conditioner, compressor no longer needs the longer time of cost to set up the pressure reduction of system, system just can be with comparatively stable refrigeration so at the beginning, the state of heating moves, improve refrigeration (heating) amount, make refrigeration (heating) more quick, reach energy-conservation object, meanwhile, compressor, in the time that next air-conditioner starts, sucks more stable low-pressure gas, and pressure-difference fluctuation is little, and liquid hammer hidden danger is little, raising air-conditioning service life.
Brief description of the drawings
Fig. 1 is the schematic diagram of aircondition one preferred embodiment that can maintain system pressure difference of the present invention;
Fig. 2 is the schematic diagram that coordinates of capillary module and bypass balanced valve in Fig. 1;
Fig. 3 is that the A of bypass balanced valve in Fig. 2 is to cutaway view;
In figure, relevant Reference numeral is as follows:
1---compressor;
2---check valve;
3---cross valve;
4---off-premises station;
5---capillary module;
51---capillary transition conduit;
52---refrigerating capillary;
53---heat assisted capillary;
54---check valve;
6---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---off-premises station tube connector;
A---the first connecting line;
B---the second connecting line.
Detailed description of the invention
In order to make those skilled in the art understand better technical scheme of the present invention, below in conjunction with accompanying drawing, by specific embodiment, the present invention is described in further detail.
Referring to Fig. 1, Fig. 2, Fig. 3, the aircondition that can maintain 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 between indoor set 7 and off-premises station 4, be communicated with by the first connecting line a and the second connecting line b, capillary module 5 is arranged in the first connecting line a, it is other that bypass balanced valve 6 is arranged on capillary module 5, cross valve 3 is arranged in the second connecting line b, compressor 1 is connected with the two ends of cross valve by 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 bypass balanced valve valve body 62 and a control signal wire 63 wherein, and the every side on bypass balanced valve valve body 61 is equipped with two through hole 62a.Control signal wire 63, for being connected with the electric-control system of aircondition, receives shutdown, start-up command from electric-control system, then controls 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 by filter 8, refrigerating capillary 52 and heat assisted capillary 53 and be communicated with capillary transition conduit 51 by check valve 54.
In the present embodiment, the air-conditioner of off-premises station is in stopping and starting, by the blast pipe at compressor 1, check valve 2 is installed, between capillary transition conduit 8 and outdoor condenser tube connector 14, bypass balanced valve 16 is installed, and control moving left and right of bypass balanced valve by electric control system controls holding wire 13, to arrive the object that maintains indoor and outdoor pressure reduction.
The process of refrigerastion of the present embodiment as shown in Figure 1, the flow direction that in figure, arrow direction is cold-producing medium: compressor 1 compresses high-temperature high-pressure refrigerant, through check valve 2, and enter off-premises station 4 by cross valve 3, cold-producing medium is in the cooling of outside high pressure, and then, by capillary module 5 throttlings, the cold-producing medium after decrease temperature and pressure enters indoor set 7, evaporation through indoor enters 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 herein.
Fig. 2 is illustrated in the action of bypass balanced valve in stopping process, arrow direction in figure is the moving direction of bypass balanced valve: in process of refrigerastion, high-pressure refrigerant is entered in capillary module through filter 8 by off-premises station tube connector 9, after throttling, enter in indoor set 7 by capillary transition conduit 51, when the electric-control system of aircondition receives after the signal that needs to shut down, just lock to holding wire 63 in time, now bypass balanced valve 6 is moved to the left, its right-hand member still has can be by the passage of high-pressure refrigerant, and left side originally can be by the channel jam of low pressure refrigerant, like this after refrigeration is shut down, outside is still maintained high pressure, and indoor is maintained low pressure, until electric-control system receives after the signal that compressor need restart, 6 of bypass balanced valves return to origin-location again, continue refrigeration.
Heat process the same with the principle of process of refrigerastion, just bypass balanced valve 6 moves right to maintain indoor and outdoor pressure reduction.
Above the present invention is described in detail, applies specific case principle of the present invention and embodiment are set forth in literary composition, the explanation of above embodiment is just for helping to understand method of the present invention and core concept thereof.It should be pointed out that for those skilled in the art, under the premise without departing from the principles 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 the claims in the present invention.
Claims (5)
1. one kind can maintain the aircondition of system pressure difference, comprise the indoor set and the off-premises station that connect by the first connecting line and the second connecting line, in the first connecting line, be provided with capillary module, in the second connecting line, be provided with cross valve, it is characterized in that, the other two ends of described cross valve are connected to a loop, in described loop, be connected with compressor, the blast pipe of described compressor is provided with check valve, between capillary transition conduit in described capillary module and off-premises station tube connector, be provided with bypass balanced valve, described bypass balanced valve is connected with electric-control system by control signal wire, described control signal wire is according to the moving direction of the halt instruction of electric-control system and start-up command control bypass balanced valve, when refrigeration is shut down, capillary transition conduit is stopped up, conducting when start, making to heat off-premises station tube connector while shutdown stops up, conducting when start.
2. the aircondition that can maintain system pressure difference according to claim 1, is characterized in that, described bypass balanced valve comprises sleeve pipe and is arranged on the valve body in sleeve pipe.
3. the aircondition that can maintain system pressure difference according to claim 2, is characterized in that, a side that connects a side of capillary transition conduit on described valve body and connect off-premises station tube connector is respectively provided with respectively two through holes.
4. the aircondition that can maintain system pressure difference according to claim 1, it is characterized in that, in described capillary module, also comprise refrigerating capillary and heat assisted capillary, described refrigerating capillary and heat assisted capillary all by a check valve and the conducting of capillary transition conduit.
5. the aircondition that can maintain system pressure difference according to claim 4, is characterized in that, between the refrigerating capillary in described off-premises station tube connector and capillary module, is also provided with a filter.
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 CN102538314A (en) | 2012-07-04 |
| CN102538314B true CN102538314B (en) | 2014-06-25 |
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| 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 |
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| CN (1) | CN102538314B (en) |
Families Citing this family (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 |
| 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 |
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 |
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| Publication number | Publication date |
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| CN102538314A (en) | 2012-07-04 |
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