CN203323464U - Reducing two-way throttling short tube - Google Patents
Reducing two-way throttling short tube Download PDFInfo
- Publication number
- CN203323464U CN203323464U CN2013201294342U CN201320129434U CN203323464U CN 203323464 U CN203323464 U CN 203323464U CN 2013201294342 U CN2013201294342 U CN 2013201294342U CN 201320129434 U CN201320129434 U CN 201320129434U CN 203323464 U CN203323464 U CN 203323464U
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- short tube
- tube
- pipe
- reducing
- interior caliber
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Abstract
The utility model relates to a reducing two-way throttling short tube which is characterized by comprising more than two sections of short tubes with different tube diameters; the short tubes are sequentially arranged according to the size of inner tube diameters and connected in series to form the reducing two-way throttling short tube; the length of each short tube is 2 mm to 30 mm; the inner tube diameter D1 of a first tube at a head end is the smallest and is 0.4 mm to 1.1 mm; the inner tube diameter D2 of a second tube close to the first tube is 1.1 to 2 times of that of D1, the inner tube diameter D3 of a third tube close to the second tube is 1.1 to 2 times of that of D2, the inner tube diameter of an nth tube is 1.1 to 2 times of that of an (n-1)th tube by parity of reasoning; the inner tube diameter of the nth tube at a tail end is the largest, wherein the n is a natural number. The reducing two-way throttling short tube has the advantages as follows: since end-on valves are not used, the production cost is reduced; since craters are reduced, the potential leakage is reduced; and the vibration noises produced by the end-on valves are fully avoided.
Description
Technical field
The utility model patent relates to a kind of refrigeration system throttling technology, especially freeze and the cold-warm type air-conditioning device refrigeration system of heating operation in a kind of reducing two-way throttling short tube technology.
Background technology
Refrigeration plant is as refrigeration and heat the air conditioner for both device, is being freezed and during heating operation, and the refrigerant flow under two kinds of methods of operation requires different; At present, be mainly by change freeze and during heating operation cold-producing medium flow through length difference capillaceous and realize, usually adopt the structure as Fig. 1 when design.When refrigerating operaton, cold-producing medium enters from the A end of the first capillary (1), and after the first capillary (1) throttling, directly the E end through check valve 2 flows out.When heating operation, cold-producing medium enters from the E end of check valve 2, blocking effect because of check valve (2), cold-producing medium enters through the D of the second capillary (3) end, arrive the C end after (3) throttlings of the second capillary, then the A end from the first capillary (1) flows out after the first capillary (1) second throttle.The subject matter that adopts this structure to exist is to have increased check valve in throttle system, has not only increased material cost, has also increased the problem that soldering opening leakage and check valve produce noise.
Summary of the invention
The purpose of this utility model is to provide a kind of novel two-way throttling short tube of the reducing without check valve, the restricting element with check valve that replaces cold-warm type air-conditioning device Central Plains to use, no matter refrigeration system is when refrigeration and heating operation, cold-producing medium all flows through same restriction sleeve and carries out throttling, with the purpose that reaches simplified structure, reduces costs.
In order to achieve the above object, the first technical scheme of the present utility model is, it is a kind of reducing two-way throttling short tube, it is characterized in that comprising the short tube of different tube diameters more than two sections, thereby each short tube by interior pipe diameter size, arranges successively and mutual series connection forms the reducing two-way throttling short tube; The length of each short tube is 2mm to 30mm, the interior caliber D1 minimum of top first paragraph pipe, D1 is 0.4mm to 1.1mm, the interior caliber D2 of adjacent second segment pipe is D1 1.1 to 2 times, the interior caliber of the three section pipe adjacent with the second segment pipe is D2 1.1 to 2 times, the interior caliber of n section pipe is 1.1 to 2 times of interior caliber of n-1 section pipe by that analogy, the interior caliber maximum of the n section pipe of end, and n is natural number.
Be provided with chamfering C in the junction of described adjacent two short tubes, the scope of described chamfering C is 45o to 180o, all each short tube concentrics.
In order to achieve the above object, the second technical scheme of the present utility model is, it is a kind of reducing two-way throttling short tube, it is characterized in that comprising the monomer pipe, axially offer the different short tube more than two of internal diameter in described monomer pipe, thereby each short tube is arranged and is formed the reducing two-way throttling short tube successively by interior pipe diameter size; The length of each short tube is 2mm to 30mm, the interior caliber D1 minimum of top first paragraph pipe, D1 is 0.4mm to 1.1mm, the interior caliber D2 of adjacent second segment pipe is D1 1.1 to 2 times, the interior caliber of the three section pipe adjacent with the second segment pipe is D2 1.1 to 2 times, the interior caliber of n section pipe is 1.1 to 2 times of interior caliber of n-1 section pipe by that analogy, the interior caliber maximum of the n section pipe of end, and n is natural number.
Be provided with chamfering C in the junction of described adjacent two short tubes, the scope of described chamfering C is 45o to 180o, all each short tube concentrics.
The utility model advantage compared with prior art is: without check valve, reduce production costs; Reduce weld bond, reduce and leak hidden danger; The vibration noise of avoiding check valve to produce fully.
The accompanying drawing explanation
Fig. 1 is the structural representation of prior art;
Fig. 2 is the structural representation of the utility model embodiment mono-;
Fig. 3 is the structural representation of the utility model embodiment bis-.
The specific embodiment
Below describe embodiment of the present utility model in detail, the example of described embodiment is shown in the drawings, in figure from start to finish same or similar label mean same or similar element or the element with identical or similar functions.Be exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, term " first " reaches " second " only for describing purpose, and can not be interpreted as indication or hint relative importance.
Embodiment mono-
As shown in Figure 1, 2, it is a kind of reducing two-way throttling short tube, comprises the short tube of different tube diameters more than two sections, thereby each short tube by interior pipe diameter size, arranges successively and mutual series connection forms the reducing two-way throttling short tube, and adjacent short tube can be by being welded to connect; The length of each short tube is 2mm to 30mm, the interior caliber D1 minimum of top first paragraph pipe 5, D1 is 0.4mm to 1.1mm, the interior caliber D2 of adjacent second segment pipe 7 is D1 1.1 to 2 times, the interior caliber of the three section pipe adjacent with second segment pipe 7 is D2 1.1 to 2 times, the interior caliber of n section pipe is 1.1 to 2 times of interior caliber of n-1 section pipe by that analogy, the interior caliber maximum of the n section pipe of end, and n is natural number.In the present embodiment, be provided with the short tube of two sections different tube diameters, the quantity of short tube also can be set according to actual needs.
During work, as air-conditioning carries out refrigerating operaton, cold-producing medium is that the little short tube in aperture enters next second adjacent short tube 7 of inflow from the first short tube 5, cold-producing medium gradually becomes gas-liquid two-phase by liquid phase, because the interior caliber of short tube constantly increases, therefore the pressure that enters next section pipe constantly descends, mass dryness fraction constantly increases, continuous increase along with the cold-producing medium mass dryness fraction, its pressure will speed up decline, when flowing through the first short tube 5, cold-producing medium enters into the reducing junction 6 with the second short tube 7, because caliber is now undergone mutation, pressure will be undergone mutation, pressure sharply descends, then cold-producing medium flows into the second short tube 7, continue step-down, Pressure Drop during final realization refrigeration requires and traffic requirement.When air-conditioning carries out heating operation, the second short tube 7 that cold-producing medium is large from hole enters, its throttling process is the same during with refrigerating operaton, but because the internal diameter of each short tube of now flowing through constantly diminishes, and reducing junction sudden change mode is different, and (one is sudden expansion, one for sudden contraction), make cold-producing medium mass dryness fraction variation characteristic and pressure variation characteristic all not identical, thereby different Pressure Drops require and traffic requirement can realize heating the time.
During work, because its Pressure Drop of different refrigeration systems is different with traffic requirement, for adapting to this needs, can realize in the following way: the sizes of the chamfering C of the caliber D2 of the caliber D1 by adjusting the first short tube 5 and length L 1, the second short tube 7 and length L 2 and two sections pipe junctions 6 realize.
For further reducing costs, can directly utility model be placed in the high-pressure system of refrigeration system and refrigerant circulation pipeline or parts between low-pressure system, also can on the parts such as stop valve, process above-mentioned short tube Inner structural shape, play the bidirectional throttle effect.
In the present embodiment, in the junction 6 of described adjacent two short tubes, be provided with chamfering C, the scope of described chamfering C is 45o to 180o, all each short tube concentrics.
Embodiment bis-
As shown in Figure 3,4, it is a kind of reducing two-way throttling short tube, comprises the monomer pipe, in described monomer pipe, axially offers the different short tube more than two of internal diameter, thereby each short tube is arranged and formed the reducing two-way throttling short tube by interior pipe diameter size successively; The length of each short tube is 2mm to 30mm, the interior caliber D1 minimum of top first paragraph pipe 5, D1 is 0.4mm to 1.1mm, the interior caliber D2 of adjacent second segment pipe 7 is D1 1.1 to 2 times, the interior caliber of the three section pipe adjacent with second segment pipe 7 is D2 1.1 to 2 times, the interior caliber of n section pipe is 1.1 to 2 times of interior caliber of n-1 section pipe by that analogy, the interior caliber maximum of the n section pipe of end, and n is natural number.In the present embodiment, be provided with the short tube of two sections different tube diameters, the quantity of short tube also can be set according to actual needs.
Its operation principle is the same with embodiment mono-, no longer repeats.Owing in a monomer pipe, being processed into each short tube, with embodiment mono-than the welding sequence that has reduced adjacent short tube.
In the present embodiment, in the junction 6 of described adjacent two short tubes, be provided with chamfering C, the scope of described chamfering C is 45o to 180o, all each short tube concentrics.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present utility model and aim can be carried out multiple variation, modification, replacement and distortion to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (4)
1. a reducing two-way throttling short tube, is characterized in that comprising the short tube of different tube diameters more than two sections, thus each short tube is arranged by interior pipe diameter size successively and mutually series connection form the reducing two-way throttling short tube; The length of each short tube is 2mm to 30mm, the interior caliber D1 minimum of top first paragraph pipe (5), D1 is 0.4mm to 1.1mm, the interior caliber D2 of adjacent second segment pipe (7) is D1 1.1 to 2 times, the interior caliber of the three section pipe adjacent with second segment pipe (7) is D2 1.1 to 2 times, the interior caliber of n section pipe is 1.1 to 2 times of interior caliber of n-1 section pipe by that analogy, the interior caliber maximum of the n section pipe of end, and n is natural number.
2. reducing two-way throttling short tube according to claim 1, is characterized in that being provided with chamfering C in the junction (6) of described adjacent two short tubes, and the scope of described chamfering C is 45o to 180o, all each short tube concentrics.
3. a reducing two-way throttling short tube, is characterized in that comprising the monomer pipe, in described monomer pipe, axially offers the different short tube more than two of internal diameter, thereby each short tube is arranged and formed the reducing two-way throttling short tube by interior pipe diameter size successively; The length of each short tube is 2mm to 30mm, the interior caliber D1 minimum of top first paragraph pipe (5), D1 is 0.4mm to 1.1mm, the interior caliber D2 of adjacent second segment pipe (7) is D1 1.1 to 2 times, the interior caliber of the three section pipe adjacent with second segment pipe (7) is D2 1.1 to 2 times, the interior caliber of n section pipe is 1.1 to 2 times of interior caliber of n-1 section pipe by that analogy, the interior caliber maximum of the n section pipe of end, and n is natural number.
4. reducing two-way throttling short tube according to claim 3, is characterized in that being provided with chamfering C in the junction (6) of described adjacent two short tubes, and the scope of described chamfering C is 45o to 180o, all each short tube concentrics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201294342U CN203323464U (en) | 2013-03-21 | 2013-03-21 | Reducing two-way throttling short tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201294342U CN203323464U (en) | 2013-03-21 | 2013-03-21 | Reducing two-way throttling short tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323464U true CN203323464U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201294342U Withdrawn - After Issue CN203323464U (en) | 2013-03-21 | 2013-03-21 | Reducing two-way throttling short tube |
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| Country | Link |
|---|---|
| CN (1) | CN203323464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216979A (en) * | 2013-03-21 | 2013-07-24 | 顺德职业技术学院 | Reducing two-way throttling short tube |
-
2013
- 2013-03-21 CN CN2013201294342U patent/CN203323464U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216979A (en) * | 2013-03-21 | 2013-07-24 | 顺德职业技术学院 | Reducing two-way throttling short tube |
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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: 20131204 Effective date of abandoning: 20150826 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |