CN202188705U - Unloading and throttling device - Google Patents
Unloading and throttling device Download PDFInfo
- Publication number
- CN202188705U CN202188705U CN2011202501730U CN201120250173U CN202188705U CN 202188705 U CN202188705 U CN 202188705U CN 2011202501730 U CN2011202501730 U CN 2011202501730U CN 201120250173 U CN201120250173 U CN 201120250173U CN 202188705 U CN202188705 U CN 202188705U
- Authority
- CN
- China
- Prior art keywords
- load
- throttling
- unloader
- outlet
- transition conduit
- 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.)
- Expired - Fee Related
Links
- 230000007704 transition Effects 0.000 claims abstract description 33
- 238000004378 air conditioning Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 238000003466 welding Methods 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
Images
Abstract
The utility model discloses an unloading and throttling device which comprises an unloading valve and a throttling gear, wherein the throttling gear comprises a transition pipe and a throttling valve core; the unloading valve is connected with an inlet pipe and an outlet pipe connected with the transition pipe; and the throttling valve core is arranged in the transition pipe. When a system pressure surpasses an unloading value, the unloading and throttling device enables high-pressure refrigerant at the outlet of a condenser to reach a liquid inlet end of an indoor heat exchanger from the unloading and throttling device, so as to guarantee the running reliability of an air conditioner.
Description
Technical field
The utility model relates to refrigeration technology field, more particularly, relates to a kind of off-load throttling arrangement that on air-conditioner, uses.
Background technology
In air-conditioning technical field, to different use climatic environments, GB/T7725 " room air conditioner " has defined the air-conditioner of T1, T2,3 three kinds of operating mode types of T respectively, and wherein the T3 operating mode is the tropical climate type, and service condition is the most abominable.Work under the T3 adverse circumstances when air-conditioner refrigerating system, occur phenomenons such as compressor overcurrent, overheated, overload protective device tripping easily, simultaneously, under the T3 operating mode, effectively the two-phase section of heat exchange reduces, and system's refrigerating capacity and Energy Efficiency Ratio can descend to some extent.To T3 operating mode area service condition, generally reach overload protection through adding the off-load throttle capillary tube: the off-load capillary outlet is positioned at the indoor heat exchanger liquid feeding end, and is parallelly connected with throttle capillary tube.Or through the off-load capillary from condensator outlet with the off-load of normal temperature high voltage liquid refrigerant in the compressor return air pipe, thereby make condensing pressure reduce, delivery temperature descends, the protection cooler compressor.Generally speaking, its operation principle is: unloader is opened when condensing pressure is too high, and the highly pressurised liquid of condensator outlet is discharged, and regulates flow, reduces condenser pressure.Off-load specification capillaceous generally has φ 2.6, φ 2.2, φ 1.9, φ 1.6, φ 1.4, φ 1.2 etc., still, in the process of off-load capillary welding, is easy to cause weldering stifled.And the off-load capillary causes the capillary member volume to increase, and on the off-premises station of compact conformation at present, assembles, and assembly space is obviously not enough, and assembly manipulation is taken time and effort, and efficient is very low.
The utility model content
For overcoming above-mentioned problem; The purpose of the utility model is to provide a kind of simple and reliable, easy to assembly, off-load throttling arrangement that control accuracy is high; Make the throttling control of air-conditioning system accurate more, reliable, improve assembling work efficient, stop the stifled phenomenon of leaking of welding of present off-load capillary weldering.
For this reason; The utility model adopts following technical scheme: a kind of off-load throttling arrangement; Comprise unloader and throttling arrangement, said throttling arrangement is made up of transition conduit and throttling valve core, and said unloader is connected with inlet tube and outlet; Said outlet connects transition conduit, and said throttling valve core is arranged in the transition conduit.
Preferably, said transition conduit exports converting interface, choke valve load chamber, skirt by unloader and constitutes, and the end of choke valve load chamber is provided with frustum; Said throttling valve core is by main body, tapering and run through main body and the throttle orifice in tapering constitutes, and said throttling valve core is slided in the choke valve load chamber, and the frustum interference of the tapering of said throttling valve core and choke valve load chamber matches.
Preferably, the main body of said throttling valve core is columned, and the main diameter of said throttling valve core is less than choke valve load chamber internal diameter.
Preferably, the unloader of said transition conduit outlet converting interface internal diameter is greater than choke valve load chamber internal diameter.
Preferably, the outlet external diameter of said unloader is less than the unloader outlet converting interface internal diameter of said transition conduit and greater than choke valve load chamber internal diameter.
Preferably, the unloader of the outlet of said unloader and transition conduit outlet converting interface is welded to connect.
Preferably, the skirt of said transition conduit connects the entrance side of air-conditioning indoor heat exchanger.
Preferably, the muffler of the skirt connection air conditioning compressor of said transition conduit.
The beneficial effect of the utility model:
1) apparatus structure compactness, restricting element do not take up room in addition, do not increase solder joint, thereby thoroughly avoid the stifled phenomenon of welding weldering.
2) employee's operation is easier, thereby reduces the rate that rolls off the production line of producing.
3) under the T3 environment, when system pressure surpassed the off-load value, the high-pressure refrigerant that the off-load throttling arrangement makes condensator outlet to the indoor heat exchanger liquid feeding end, had guaranteed the reliability operation of air-conditioner from off-load.
Description of drawings
Fig. 1 is the air-conditioner refrigerating system structural representation of existing band unloader;
Another refrigerant system configurations sketch map of air-conditioner of the existing band of Fig. 2 unloader;
Fig. 3 is that the pipeline of existing unloader connects sketch map;
Fig. 4 is that the pipeline of the utility model off-load throttling arrangement connects sketch map;
Fig. 5 is the structure broken away view of the utility model off-load throttling arrangement;
Fig. 6 is the throttling valve core structural representation of the utility model off-load throttling arrangement;
Fig. 7 is the transition conduit structural representation of the utility model off-load throttling arrangement.
The specific embodiment
Referring to Fig. 1-2; In the prior art; To the T3 operating mode, have additional unloader and off-load capillary on the air-conditioner refrigerating system, air-conditioner refrigerating system is made up of compressor 33, cross valve 32, outdoor heat exchanger 35, indoor heat exchanger 34, main capillary 4, unloader 3 and off-load capillary 1.When refrigeration work; Compressor 33 is discharged to cross valve 32 with the cold-producing medium of HTHP, flows to outdoor heat exchanger 35 through cross valve 32, and cold-producing medium release heat in outdoor heat exchanger is condensed into liquid refrigerant; And flow to main capillary 4; To indoor heat exchanger 34, flow to cross valve through main capillary again, get back in the compressor.Under the T3 operating mode, too high when the condensing pressure of outdoor heat exchanger 35, during greater than the off-load setting value, unloader starts, and from unloader, off-load capillary 1 splitter section cold-producing medium, thereby reduces condensing pressure.Fig. 3 is that existing unloader refrigeration pipe connects sketch map, and off-load capillary 1 connects unloader 3, draws the inlet tube of unloader from an outlet of four-way pipe 7, and two other outlet of four-way pipe 7 connects main capillary 4 and transition conduit 6 respectively.
Fig. 4 is that the off-load throttling arrangement pipeline of the utility model connects sketch map; Comprise unloader 3 and throttling arrangement; Throttling arrangement is made up of transition conduit 2 and throttling valve core; Unloader is provided with inlet tube 5 and outlet, and outlet connects transition conduit 2, and throttling valve core is arranged in the transition conduit 2 (not shown among Fig. 2).
Referring to Fig. 5-7, transition conduit 2 is made up of unloader outlet converting interface 22, choke valve load chamber 23, skirt 25, and the end of choke valve load chamber 23 is provided with frustum 24.Throttling valve core 21 is by main body 211, tapering 21 and run through main body and the throttle orifice in tapering constitutes; The main body 211 of throttling valve core is columned; Main body 211 diameters of throttling valve core are less than choke valve load chamber 23 internal diameters; Throttling valve core 21 can be slided in choke valve load chamber 23, and the tapering of throttling valve core 212 matches with frustum 24 interference of choke valve load chamber, makes the throttling valve core can be with the bottom seals of choke valve load chamber 23.
Transition conduit is that copper pipe makes, and unloader outlet converting interface 22, throttling valve core load chamber 23 and frustum 24, skirt 25 all are to be processed by the copper pipe reaming of unifying caliber.The length of choke valve load chamber is according to the Design of length processing of throttling valve core; Internal diameter is slightly larger than the external diameter of throttling valve core; The external diameter of the outlet 31 of unloader 3 be slightly less than unloader outlet converting interface 22 internal diameter, be slightly larger than the internal diameter of throttling valve core load chamber 23, make the insertion depth of outlet 31 be restricted to the length of the unloader outlet converting interface of transition conduit.
During assembling, earlier throttling valve core is put into throttling valve core load chamber 23, again outlet 31 is inserted the unloader outlet converting interface 22 of transition conduit 2, transition conduit 2 and outlet 31 are welded with the mode of welding.The off-load throttling arrangement that welding is good is welded to connect according to connected mode shown in Figure 4 and main capillary 4, four-way pipe 7, this component parts is assembled in the air-conditioner outdoor unit again.The utility model does not need the off-load capillary, has reduced the off-load operation that is welded to connect capillaceous, reduces the stifled phenomenon of weldering.This apparatus structure is compact, and cost is lower, has avoided processing off-load capillary complicated step, and needed assembly space is little, reduces the difficulty of assembling, increases work efficiency.
When air-conditioner is opened under the T3 mal-condition; If condensing pressure is higher, when condensator outlet pressure reaches the opening pressure of unloader; Unloader 3 is opened, and the liquid coolant of high pressure flows into from the inlet tube 5 of off-load throttling arrangement, flows out, gets in the transition conduit from outlet.The liquid refrigerant of high pressure presses down throttling valve core 21; Make the tapering 212 of throttling valve core 21 be close to the conical surface of the frustum 24 of choke valve load chamber; Make the choke valve load chamber hermetically closing of transition conduit; The inboard heat exchanger liquid feeding end of high pressure liquid refrigerant inlet chamber behind the throttle orifice of the middle part of throttling valve core 21, thereby the effect of realization high pressure unloading, thus air-conditioner operation reliably under rugged environment guaranteed.So because excessively the internal orifice dimension of pipe has effectively avoided the stifled phenomenon of weldering to take place greatly in the time of welding.It is less that this installs needed assembly space, assembles up comparatively simple.Effectively reduced processing off-load complicated procedures of forming capillaceous.
Claims (8)
1. off-load throttling arrangement; Comprise unloader and throttling arrangement, it is characterized in that: said throttling arrangement is made up of transition conduit and throttling valve core, and said unloader is connected with inlet tube and outlet; Said outlet connects transition conduit, and said throttling valve core is arranged in the transition conduit.
2. off-load throttling arrangement according to claim 1 is characterized in that: said transition conduit exports converting interface, choke valve load chamber, skirt by unloader and constitutes, and the end of choke valve load chamber is provided with frustum; Said throttling valve core is by main body, tapering and run through main body and the throttle orifice in tapering constitutes, and said throttling valve core is slided in the choke valve load chamber, and the frustum interference of the tapering of said throttling valve core and choke valve load chamber matches.
3. off-load throttling arrangement according to claim 2 is characterized in that: the main body of said throttling valve core is columned, and the main diameter of said throttling valve core is less than choke valve load chamber internal diameter.
4. off-load throttling arrangement according to claim 3 is characterized in that: the unloader outlet converting interface internal diameter of said transition conduit is greater than choke valve load chamber internal diameter.
5. off-load throttling arrangement according to claim 4 is characterized in that: the outlet external diameter of said unloader is less than the unloader outlet converting interface internal diameter of said transition conduit and greater than choke valve load chamber internal diameter.
6. off-load throttling arrangement according to claim 5 is characterized in that: the outlet of said unloader and the unloader of transition conduit outlet converting interface are welded to connect.
7. off-load throttling arrangement according to claim 6 is characterized in that: the skirt of said transition conduit connects the entrance side of air-conditioning indoor heat exchanger.
8. off-load throttling arrangement according to claim 7 is characterized in that: the muffler of the skirt connection air conditioning compressor of said transition conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202501730U CN202188705U (en) | 2011-07-15 | 2011-07-15 | Unloading and throttling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202501730U CN202188705U (en) | 2011-07-15 | 2011-07-15 | Unloading and throttling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202188705U true CN202188705U (en) | 2012-04-11 |
Family
ID=45920151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202501730U Expired - Fee Related CN202188705U (en) | 2011-07-15 | 2011-07-15 | Unloading and throttling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202188705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306850A (en) * | 2019-12-30 | 2020-06-19 | 中山长虹电器有限公司 | Throttling system with unloading valve |
-
2011
- 2011-07-15 CN CN2011202501730U patent/CN202188705U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306850A (en) * | 2019-12-30 | 2020-06-19 | 中山长虹电器有限公司 | Throttling system with unloading valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20190715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |