CN203163371U - Expansion valve - Google Patents
Expansion valve Download PDFInfo
- Publication number
- CN203163371U CN203163371U CN201320141041.3U CN201320141041U CN203163371U CN 203163371 U CN203163371 U CN 203163371U CN 201320141041 U CN201320141041 U CN 201320141041U CN 203163371 U CN203163371 U CN 203163371U
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- Prior art keywords
- welding
- nozzle belt
- expansion valve
- nozzle
- belt
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Abstract
The utility model relates to the refrigeration field, in particular to an expansion valve. The expansion valve comprises a valve body and a connecting pipe, wherein the connecting pipe comprises a first connecting pipe segment and a second connecting pipe segment, one end of the first connecting pipe segment and one end of the second connecting pipe segment are welded in a butting mode through flashing welding or through friction welding, the first connecting pipe segment is a copper pipe segment, and the second connecting pipe segment is a non-copper-pipe metal segment. Due to the fact that the structure is adopted, using amount of copper pipes can be greatly reduced, and manufacturing costs are reduced; meanwhile, due to the fact that the mode of the connection between the connecting pipe and the valve body is changed to a solderless welding method, not only is welding flux saved, but also waste gases such as carbon dioxide will not be generated in the whole manufacturing process to pollute the environment.
Description
Technical field
The application relates to refrigerating field, is specifically related to a kind of expansion valve.
Background technology
Expansion valve is a vitals in the refrigeration system, the liquid refrigerant of warm high pressure became the moist steam of low-temp low-pressure during expansion valve made by its throttling, cold-producing medium absorbs heat and reaches refrigeration in evaporimeter then, the degree of superheat of expansion valve by the evaporimeter end changes comes the by-pass valve control flow, prevents the under-utilized and engine knock phenomenon of evaporator area.Expansion valve mainly plays a part the throttling step-down and regulates flow, and it prevents Wet Compression and liquid hammer protection compressor and unusual overheated function in addition simultaneously.
Expansion valve comprises electric expansion valve, heating power expansion valve and pressure expansion valve.
At present in the prior art, the structure of whole copper pipe is generally all adopted in the adapter of expansion valve, taking over being connected of valve body is to be welded on the valve body by the flame welding mode that adopts strong solder, this structure not only causes manufacturing cost too high because having adopted a large amount of copper materials, but also can produce a large amount of carbon dioxide because using scolder, cause the pollution of environment.
Therefore, in order to alleviate the cost pressure of air conditioning system maker, avoid copper pipe consume excessively and CO 2 waste gas to the generation of the problems such as pollution of environment, research and develop a kind of production process environmental protection, it is particularly important that the expansion valve that manufacturing cost is cheap relatively seems.
Summary of the invention
The application's purpose is to avoid above-mentioned weak point of the prior art and provides a kind of production process environmental protection, expansion valve cheap for manufacturing cost.
The application's purpose is achieved through the following technical solutions:
A kind of expansion valve is provided, comprise valve body and adapter, described adapter includes first nozzle belt and second nozzle belt, one end of described first nozzle belt docks welding or friction welding (FW) butt joint welding with an end of described second nozzle belt by flash welding, described first nozzle belt is the copper pipe section, and described second nozzle belt is the metal segments of non-copper pipe.
Wherein, when described first nozzle belt docks welding with described second nozzle belt, the internal diameter of the butt end of described first nozzle belt is less than the external diameter of the butt end of described second nozzle belt, and the external diameter of the butt end of described first nozzle belt is greater than the internal diameter of the butt end of described second nozzle belt.
Wherein, the other end of described second nozzle belt is welded to connect by flash welding, friction welding (FW), Laser Welding, flame welding, electric resistance welding, ratio-frequency welding or carbon-dioxide arc welding and described valve body.
Wherein, described adapter also includes the 3rd nozzle belt, and an end and the described valve body of described the 3rd nozzle belt are welded to connect, and the other end of described the 3rd nozzle belt docks welding or friction welding (FW) butt joint welding with the other end of described second nozzle belt by flash welding.
Wherein, when described the 3rd nozzle belt docks welding with described second nozzle belt, the internal diameter of the butt end of described the 3rd nozzle belt is less than the external diameter of the butt end of described second nozzle belt, and the external diameter of the butt end of described the 3rd nozzle belt is greater than the internal diameter of the butt end of described second nozzle belt.
Wherein, described the 3rd nozzle belt welds the 3rd nozzle belt that forms for the 3rd nozzle belt that formed by one section metal section or for being docked each other by the metal section more than two sections.
Wherein, described one section metal section is any metal section in copper pipe section, iron pipe section and the aluminum pipe section; Described metal section more than two sections is metal section of the same race or dissimilar metal pipeline section.
Wherein, an end of described the 3rd nozzle belt is welded to connect by flash welding, friction welding (FW), Laser Welding, flame welding, electric resistance welding, ratio-frequency welding or carbon-dioxide arc welding and described main valve.
Wherein, described expansion valve is any in electric expansion valve, heating power expansion valve and the pressure expansion valve.
The application's beneficial effect:
The application's expansion valve, comprise valve body and adapter, described adapter is for adopting the combination of copper pipe and iron pipe, perhaps copper pipe and aluminum pipe combination, or the compound tube that constitutes of copper pipe, iron pipe and aluminum pipe three's multistage combination, each built-up section is welded to form by solderless flash welding or friction welding (FW) butt joint.Adopt this structure can reduce the copper pipe use amount in a large number, thereby reduction manufacturing cost, simultaneously, because an end of taking over has made the material of iron or aluminium into, therefore the connected mode between adapter and the valve body can make solderless flash welding, friction welding (FW), Laser Welding or electric resistance welding into by the flame welding that adopts strong solder, not only save scolder, and whole manufacturing process can not produce exhaust emission environment such as carbon dioxide, simplify technology when realizing green production yet.
Description of drawings
Utilize accompanying drawing that the application is described further, but the embodiment in the accompanying drawing does not constitute any restriction to the application, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to the following drawings.
Fig. 1 is the structural representation of a kind of expansion valve of the application.
Fig. 2 is the another kind of structural representation of a kind of expansion valve of the application.
Reference numeral:
The 1-valve body,
2-takes over, 21-first nozzle belt, 22-second nozzle belt, 23-the 3rd nozzle belt.
The specific embodiment
With the following Examples the application is further described.
A kind of expansion valve as shown in Figure 1, comprises valve body 1 and takes over 2, takes over 2 and comprises that an end of first nozzle belt 21 and second nozzle belt, 22, the first nozzle belts 21 docks welding or friction welding (FW) butt joint welding with an end of second nozzle belt 22 by flash welding.Wherein, first nozzle belt 21 is the copper pipe section, and second nozzle belt 22 is the metal segments of non-copper pipe.The adapter of expansion valve includes a plurality of adapters, can be that aforesaid way is all adopted in all adapters in a plurality of adapters, also can be that aforesaid way is adopted in some of adapters, and it still is the mode of whole copper pipe that residue is taken over.
The metal segments of so-called non-copper pipe is other metal sections beyond the copper removal, for example, and iron pipe section, aluminum pipe section etc.
When first nozzle belt 21 docked welding with second nozzle belt 22, the internal diameter of the butt end of first nozzle belt 21 was less than the external diameter of the butt end of second nozzle belt 22, and the external diameter of the butt end of first nozzle belt 21 is greater than the internal diameter of the butt end of second nozzle belt 22.Preferably, interior external diameter homogeneous phase of the butt end of first nozzle belt 21 and second nozzle belt 22 etc.
The other end of second nozzle belt 22 and valve body 1 are welded to connect, and its welding method can adopt any in flash welding, friction welding (FW), Laser Welding, flame welding, electric resistance welding, ratio-frequency welding and the carbon-dioxide arc welding; Be preferably in solderless electric resistance welding, flash welding, friction welding (FW) and the Laser Welding any.
The application's indication expansion valve is any in electric expansion valve, heating power expansion valve and the pressure expansion valve.
Two of the specific embodiment of a kind of expansion valve of the application, with reference to shown in Figure 2, the main technical schemes of present embodiment is identical with embodiment 1, and unaccounted feature adopts the explanation among the embodiment 1 in the present embodiment, no longer gives unnecessary details at this.The difference of present embodiment and embodiment 1 is, takes over 2 and also comprises the 3rd nozzle belt 23, and adapter 2 is docile and obedient order by first nozzle belt 21, second nozzle belt 22 and the 3rd nozzle belt 23 and is welded to form by flash welding butt joint welding or friction welding (FW) butt joint.One end and the valve body 1 of the 3rd nozzle belt 23 are welded to connect, and its other end docks welding with second nozzle belt 22.
Identical with second nozzle belt, 22 butt joint Fundamentals of Welding with first nozzle belt 21, when the 3rd nozzle belt 23 docks welding with second nozzle belt 22, the internal diameter of the butt end of the 3rd nozzle belt 23 is less than the external diameter of the butt end of second nozzle belt 22, and the external diameter of the butt end of the 3rd nozzle belt 23 is greater than the internal diameter of the butt end of second nozzle belt 22.Preferably, interior external diameter homogeneous phase of the butt end of the 3rd nozzle belt 23 and second nozzle belt 22 etc.
Need to prove that the 3rd nozzle belt 23 can be one whole metal section, be specially whole iron pipe section or whole aluminum pipe section or whole copper pipe section; Also can be to dock the compound tube that welding forms mutually by the metal section more than two sections, described metal section more than two sections is metal section of the same race or dissimilar metal pipeline section, make up with the multistage of multistage combination, aluminum pipe section and the copper pipe section of copper pipe section such as the combination of the multistage of iron pipe section and aluminum pipe section, iron pipe section, or be the multistage welding combination of iron pipe section, aluminum pipe section, three kinds of pipes of copper pipe section, in addition, can also adopt two all to be that copper pipe section rim charge carries out recycling, further save material.
When the 3rd nozzle belt 23 is welded to connect with valve body 1; can adopt in flash welding, friction welding (FW), Laser Welding, flame welding, electric resistance welding, ratio-frequency welding and the carbon-dioxide arc welding any, preferentially adopt in solderless electric resistance welding, flash welding, friction welding (FW) and the Laser Welding any.Should be noted that at last; above embodiment is only in order to illustrate the application's technical scheme; but not to the restriction of the application's protection domain; although with reference to preferred embodiment the application has been done to explain; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the application's technical scheme, and not break away from essence and the scope of present techniques scheme.
Claims (9)
1. expansion valve, comprise valve body and adapter, it is characterized in that: described adapter includes first nozzle belt and second nozzle belt, one end of described first nozzle belt docks welding or friction welding (FW) butt joint welding with an end of described second nozzle belt by flash welding, described first nozzle belt is the copper pipe section, and described second nozzle belt is the metal segments of non-copper pipe.
2. a kind of expansion valve according to claim 1, it is characterized in that: when described first nozzle belt docks welding with described second nozzle belt, the internal diameter of the butt end of described first nozzle belt is less than the external diameter of the butt end of described second nozzle belt, and the external diameter of the butt end of described first nozzle belt is greater than the internal diameter of the butt end of described second nozzle belt.
3. a kind of expansion valve according to claim 1, it is characterized in that: the other end of described second nozzle belt is welded to connect by flash welding, friction welding (FW), Laser Welding, flame welding, electric resistance welding, ratio-frequency welding or carbon-dioxide arc welding and described valve body.
4. a kind of expansion valve according to claim 1, it is characterized in that: described adapter also includes the 3rd nozzle belt, one end and the described valve body of described the 3rd nozzle belt are welded to connect, and the other end of described the 3rd nozzle belt docks welding or friction welding (FW) butt joint welding with the other end of described second nozzle belt by flash welding.
5. a kind of expansion valve according to claim 4, it is characterized in that: when described the 3rd nozzle belt docks welding with described second nozzle belt, the internal diameter of the butt end of described the 3rd nozzle belt is less than the external diameter of the butt end of described second nozzle belt, and the external diameter of the butt end of described the 3rd nozzle belt is greater than the internal diameter of the butt end of described second nozzle belt.
6. a kind of expansion valve according to claim 4 is characterized in that: described the 3rd nozzle belt welds the 3rd nozzle belt that forms for the 3rd nozzle belt that formed by one section metal section or for being docked each other by the metal section more than two sections.
7. a kind of expansion valve according to claim 6, it is characterized in that: described one section metal section is any metal section in copper pipe section, iron pipe section and the aluminum pipe section; Described metal section more than two sections is metal section of the same race or dissimilar metal pipeline section.
8. a kind of expansion valve according to claim 4, it is characterized in that: an end of described the 3rd nozzle belt is welded to connect by flash welding, friction welding (FW), Laser Welding, flame welding, electric resistance welding, ratio-frequency welding or carbon-dioxide arc welding and described main valve.
9. according to each described a kind of expansion valve in the claim 1 to 8, it is characterized in that: described expansion valve is any in electric expansion valve, heating power expansion valve and the pressure expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320141041.3U CN203163371U (en) | 2013-03-26 | 2013-03-26 | Expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320141041.3U CN203163371U (en) | 2013-03-26 | 2013-03-26 | Expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203163371U true CN203163371U (en) | 2013-08-28 |
Family
ID=49024550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320141041.3U Withdrawn - After Issue CN203163371U (en) | 2013-03-26 | 2013-03-26 | Expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203163371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148651A (en) * | 2013-03-26 | 2013-06-12 | 东莞市金瑞五金制品有限公司 | Expansion valve |
-
2013
- 2013-03-26 CN CN201320141041.3U patent/CN203163371U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148651A (en) * | 2013-03-26 | 2013-06-12 | 东莞市金瑞五金制品有限公司 | Expansion valve |
| CN103148651B (en) * | 2013-03-26 | 2015-07-08 | 东莞市金瑞五金制品有限公司 | Expansion valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150708 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130828 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |