CN201916605U - Air conditioner connecting pipe - Google Patents
Air conditioner connecting pipe Download PDFInfo
- Publication number
- CN201916605U CN201916605U CN2011200317028U CN201120031702U CN201916605U CN 201916605 U CN201916605 U CN 201916605U CN 2011200317028 U CN2011200317028 U CN 2011200317028U CN 201120031702 U CN201120031702 U CN 201120031702U CN 201916605 U CN201916605 U CN 201916605U
- Authority
- CN
- China
- Prior art keywords
- copper
- air conditioner
- pipe
- connecting tube
- steel pipe
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000010949 copper Substances 0.000 claims abstract description 77
- 229910052802 copper Inorganic materials 0.000 claims abstract description 77
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 61
- 239000010959 steel Substances 0.000 claims abstract description 61
- 238000005260 corrosion Methods 0.000 claims abstract description 17
- 230000007797 corrosion Effects 0.000 claims abstract description 10
- 238000005057 refrigeration Methods 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 9
- 238000003466 welding Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000004378 air conditioning Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001962 electrophoresis Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010410 dusting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910017767 Cu—Al Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The utility model discloses an air conditioner connecting pipe. A refrigeration system pipeline connected with an indoor unit and an outdoor unit of an air conditioner respectively is formed by welding a steel pipe and copper pipes, wherein the copper pipes are welded at the two ends of the steel pipe respectively. The air conditioner connecting pipe is formed by welding the steel pipe and the copper pipes, and has the advantages that the structure is simple, the realization is easy, the requirements of refrigeration equipment on physical and chemical properties such as high intensity, corrosion resistance and the like on a connecting piece can be met, the material and manufacturing costs of the connecting pipe can be greatly lowered, the material cost is only about one tenth of that of the copper pipe, and the market competitiveness of a product is enhanced.
Description
Technical field
The utility model relates to the air conditioner field, more particularly, relates to a kind of air conditioner connecting tube.
Background technique
Air conditioner connecting tube described in the utility model, be meant the pipe that connects between air conditioner outdoor machine and the indoor set, its effect is mainly the passage of refrigerant cycle between indoor apparatus of air conditioner and the outdoor unit, this in the past pipe all is by the copper pipe manufacturing, its production technology is ripe relatively, but the indoor and outdoor machine connecting tube with the copper pipe manufacturing need consume a large amount of copper materials, average 2～3 kilograms of copper of each indoor and outdoor machine connecting tube, international market copper valency continuous rise causes the cost of production of air-conditioning to increase sharply in recent years.Brought huge pressure for whole air-conditioning manufacturing industry, part enterprise turns to the application facet of new technology, new material, thereby alleviates the pressure that the main raw material(s) rise in price is brought.Whole world copper resource was only enough used in 40 years, and China may all be difficult to guarantee as copper import big country in 40 years, and " copper substitutes " strategy becomes the fundamental state policy of China.Therefore, the copper pipe of the various component of air conditioner is alternative is the inexorable trend of domestic air conditioning development.At present, the copper material market price is at continuous rise, and the resource of iron ore is than the aboundresources of copper mine, and the cost of production of the steel pipe also cost of production than copper pipe is low, the market price of tube material only is about 1/10th of a copper material price, if the indoor and outdoor machine connecting tube in the domestic air-conditioning system can adopt steel pipe with the replacement copper pipe, and is applied in the various parts of air conditioner, its prospect is very good, will reduce the domestic air conditioning cost of production greatly.Steel pipe substitutes the successful application of the existing part of copper pipe, and for example, steel pipe substitutes copper pipe extensive use on the refrigerator industry.But steel pipe is compared with copper pipe, and steel pipe is easier to corrosion, how to improve the city wall that the anti-corrosive properties of steel pipe and steel pipe become steel pipe replacement copper pipe to cross over the welding procedure of copper pipe.
The model utility content
The utility model purpose is in order to overcome the deficiency that above-mentioned prior art exists, solve the expensive problem of copper air conditioner connecting tube, a kind of air conditioner connecting tube that adopts steel pipe to substitute copper pipe is provided, and this is simple in structure, anti-corrosive properties are high, anticorrosive property cheap, steel pipe is strong.
The technical solution adopted in the utility model is, a kind of air conditioner connecting tube is provided, and connects the refrigeration system pipeline of indoor machine of air-conditioner and outdoor unit respectively, is welded by steel pipe and copper pipe, and copper pipe is welded at the two ends of described steel pipe respectively.
Above-mentioned air conditioner connecting tube, the two ends undergauge of described steel pipe is welded on the copper pipe inwall.
Above-mentioned air conditioner connecting tube, described steel pipe are provided with three layers of corrosion protective covering outward.
Above-mentioned air conditioner connecting tube, described three layers of corrosion protective covering comprise the pyrocondensation mantle, dust layer and electrophoretic layer.
Above-mentioned air conditioner connecting tube, the weld length of described steel pipe and copper pipe is greater than 5mm.
Compared with prior art, the utlity model has following advantage:
A kind of air conditioner connecting tube of the present utility model is made by steel pipe, copper pipe welding, simple in structure, easy realization, can satisfy chiller plant to physicochemical property requirements such as the required intensity height of link, wear-corrosion resistance, can reduce the material and the manufacture cost of connecting tube again greatly, material price only is about 1/10th of a copper pipe, improves product market competitiveness.
The copper steel connecting tube has three big advantages than fine copper connecting tube: the one, and copper steel connecting tube weld strength is higher than self intensity of steel pipe, copper pipe; Two are to use the life-span advantage, and the appearance of copper steel pipe adopts three layers of preservative treatment, guarantee the corrosion to steel pipe of isolated moisture and humid air, and the life-span was above 8 years.And copper pipe be do not do antiseptic; The 3rd, power savings advantages, the connecting pipeline of air conditioner indoor machine and outdoor unit, heat transfer efficiency is low more energy-conservation more, Cu-Al connecting pipe, copper connecting tube and the utility model copper steel connecting tube in the prior art, the thermal conductivity size of three kinds of media is respectively copper＞aluminium＞iron, therefore adopt the copper steel connecting tube to help the insulation of connecting tube, reduce the cold waste, improve energy-conservation level.
At present, the global copper amount of containing is only enough global, and the utility model steel pipe instead of copper Manifold technology can prolong the service life of copper resource in good time with 40 years, and application of the present utility model has huge value.
Description of drawings
Fig. 1 is the structural representation of air conditioner connecting tube of the present utility model;
Fig. 2 is the copper steel linkage structure sectional view of air conditioner connecting tube of the present utility model;
Fig. 3 is the finished product profile schematic representation of air conditioner connecting tube of the present utility model.
Embodiment
The parts that each label is represented in the accompanying drawing are as follows: corrosion protection plug 101, copper pipe 102, steel pipe 103, pyrocondensation mantle 201, dust layer 202, electrophoretic layer 203, copper nut 301, sealing plug 302, thermal insulation casing 303.
Below pass through embodiment, and the utility model is described in further detail in conjunction with the accompanying drawings.
Referring to Fig. 1, air conditioner connecting tube of the present utility model is made of welded connection by copper pipe 102 and steel pipe 103, at the two ends of steel pipe 103 welding copper pipe 102, adding man-hour, weld fixing behind the one end undergauge of steel pipe 103 in the insertion copper pipe 102, must guarantee to be inserted in the copper pipe again behind the steel pipe draw, insertion depth is 10mm to 20mm, the welding fusion length of steel pipe and copper pipe is greater than 5mm, after machining, in the air conditioner connecting tube behind the inflated with nitrogen again two ends corrosion protection plug 101 beyond the Great Wall, prevent that dust, moisture content and other impurity from entering in the pipeline.Air conditioner connecting tube intermediate portion adopts steel pipe to substitute the consumption that copper pipe both can reduce copper, can solve the electrochemical corrosion problem of copper steel joint in the prior art again.
Referring to Fig. 2, be the structure sectional view of air conditioner connecting tube of the present utility model.Copper pipe does not need to carry out anti-corrosion treatment, and the corrosivity that emphasis solves steel pipe becomes an important link, and steel tube surface of the present utility model is added three layers of anti-corrosion protection layer, is respectively pyrocondensation mantle 201, the layer 202 that dusts, electrophoretic layer 203 constitute.The steel copper connecting tube is immersed in the water soluble paint as anode, and establishes a negative electrode,, rely on the physics chemical action that electric current produced, make coating be evenly coated in the surface of steel copper connecting tube at the perfectly straight stream electricity of two interpolars.The air conditioner connecting tube at first carries out whole electrophoretic process with the electrophoresis method of routine; Air conditioner connecting tube behind the electrophoresis carries out second layer anti-corrosion protection layer to be handled---and powder injection process is handled.The powder injection process powder coating does not contain solvent, and no three wastes public hazards have been improved labour health condition and fine with the corrosion resistant performance of powder coating coating.For the layer 202 that dusts has good adhesion, the THICKNESS CONTROL of the layer 202 that dusts is between 0.05mm-0.1mm; Carry out the processing of the 3rd layer of anti-corrosion protection layer after dusting, coat fully through electrophoresis and the steel pipe that dusts and handle with thermal shrinkable sleeve earlier, the surface can not occur show-through, and after solidifying 10 seconds to 15 seconds under 120 ℃ to the 180 ℃ temperature, the surface forms pyrocondensation mantle 201.By such anticorrosive measure; the copper steel connecting tube just can form the protection of three layers of anti-corrosion protection layer; the copper steel connecting tube of handling through three layers of anti-corrosion protection layer is in continuous 1000 hours salt spray test; the surface can not be corroded yet, and can guarantee that indoor and outdoor connecting pipe can not corrode in use in 8 years yet.Its Chemical composition of used steel pipe satisfies C≤0.06%, Si≤0.03%, Mn≤0.40%, P≤0.03%, S≤0.03%, A1≤0.07%.
Referring to Fig. 3; after the processing of copper steel connecting tube; putting the thermal insulation casing 303 that can reduce heat-transfer effect between copper steel connecting tube and the air on the pipeline and loading onto copper nut 301,, sealing plug 302 is being installed on copper nut 301 in order to protect the groove of copper nut in pipe ends.
Below, describe the processing method of air conditioner connecting tube of the present utility model in detail:
1, steel pipe two ends undergauge inserts respectively and is welded into the steel copper connecting tube in two copper pipes;
2, will dust after the steel copper connecting tube electrophoretic process;
3, the steel pipe with the steel copper connecting tube carries out the thermal shrinkable sleeve coating, solidifies under 120 ℃ to 180 ℃ temperature, and the surface forms a kind of pyrocondensation mantle;
4, on the steel copper connecting tube, put thermal insulation casing, and load onto copper nut, sealing plug at the pipe two ends.
In the step that the steel brazing connects, the steel pipe draw inserts in the copper pipe, and insertion depth is 10mm to 20mm, and the welding fusion length of copper pipe and steel pipe is greater than 5mm; In the step of dusting, the layer thickness that dusts is controlled between the 0.05mm-0.1mm; In the step that thermal shrinkable sleeve coats, the time that the pyrocondensation mantle solidifies is controlled in 10 seconds to 15 seconds.
Claims (5)
1. air conditioner connecting tube connects the refrigeration system pipeline of indoor machine of air-conditioner and outdoor unit respectively, and it is characterized in that: be welded by steel pipe (103) and copper pipe (102), copper pipe (102) is welded at the two ends of described steel pipe (103) respectively.
2. air conditioner connecting tube according to claim 1 is characterized in that: the two ends undergauge of described steel pipe (103) is welded on copper pipe (102) inwall.
3. air conditioner connecting tube according to claim 2 is characterized in that: be provided with three layers of corrosion protective covering outside the described steel pipe (103).
4. air conditioner connecting tube according to claim 3 is characterized in that: described three layers of corrosion protective covering comprise pyrocondensation mantle (201), dust layer (202) and electrophoretic layer (203).
5. air conditioner connecting tube according to claim 4 is characterized in that: the weld length of described steel pipe (103) and copper pipe (102) is greater than 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200317028U CN201916605U (en) | 2011-01-29 | 2011-01-29 | Air conditioner connecting pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200317028U CN201916605U (en) | 2011-01-29 | 2011-01-29 | Air conditioner connecting pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916605U true CN201916605U (en) | 2011-08-03 |
Family
ID=44416401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200317028U Expired - Fee Related CN201916605U (en) | 2011-01-29 | 2011-01-29 | Air conditioner connecting pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128313A (en) * | 2011-01-29 | 2011-07-20 | Tcl空调器(中山)有限公司 | Air conditioner connecting pipe and processing method |
-
2011
- 2011-01-29 CN CN2011200317028U patent/CN201916605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128313A (en) * | 2011-01-29 | 2011-07-20 | Tcl空调器(中山)有限公司 | Air conditioner connecting pipe and processing method |
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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: 20110803 Termination date: 20190129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |