CN103032998A - Cyclic atomizing distribution device for evaporation side heat exchanger and cyclic atomizing method for cyclic atomizing distribution device - Google Patents
Cyclic atomizing distribution device for evaporation side heat exchanger and cyclic atomizing method for cyclic atomizing distribution device Download PDFInfo
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- CN103032998A CN103032998A CN2011103044135A CN201110304413A CN103032998A CN 103032998 A CN103032998 A CN 103032998A CN 2011103044135 A CN2011103044135 A CN 2011103044135A CN 201110304413 A CN201110304413 A CN 201110304413A CN 103032998 A CN103032998 A CN 103032998A
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Abstract
The invention discloses a cyclic atomizing distribution device for an evaporation side heat exchanger and a cyclic atomizing method for the cyclic atomizing distribution device. The cyclic atomizing distribution device is arranged at a position close to a joint of a distribution pipe and a pre-evaporation pipe in the distribution pipe of a cooling system, and is a flared throat pipe. A space between the inner wall of the distribution pipe and the outer wall of the flared throat pipe forms an un-atomized coolant sedimentation accumulation area which is communicated with an inner cavity of the flared throat pipe through a communicating opening reserved in the pipe of the flared throat pipe. The device has the effect that a coolant is converted into an atomized state before the flow distribution of parallel heat exchangers, so that the adverse effects of gravity on the distribution are eliminated or reduced. The device and the method have the characteristics of high distribution uniformity of each path of heat exchanger at high and low ends, low cost, no requirements for a great number of basic experiments, high universality, applicability of one structure to various types, simple process, low failure rate and the like.
Description
Technical field
The present invention relates to the atomization technique of refrigerant in cooling system, specifically evaporation side heat exchanger circulating atomization distributor and circulating atomization method thereof.
Background technology
Air-conditioning system much all is to adopt the gas-liquid conversion of refrigerant to carry out exchange heat:
As shown in Figure 3, the HTHP cold media gas that exhaust outlet of compressor is discharged enters in the condensation side heat exchanger, under the effect of heat exchange blower fan, heat is passed, and gaseous coolant is cooling liquid progressively.Enter evaporation side behind the throttling arrangement of high-pressure liquid refrigerant through capillary, expansion valve etc., evaporation side forms low pressure under the effect of compressor air suction, and liquid refrigerants also progressively is converted to gaseous state and gets back to compressor, so circulation at the evaporation side absorbing heat.
In evaporation side and condensation side, in order better to bring into play heat-exchange capacity, reduce linear loss, substantially all adopt the mode of multi-channel parallel to work.The present invention proposes a kind of mode of distributing for the refrigerant of evaporation side parallel pipeline, and therefore, following description object is evaporation side.
Because install and structure, most of evaporation side parallel pipeline mainly contains following several forms of distribution in parallel for vertically arranging in the prior art:
The nature method of salary distribution (as shown in Figure 4), take 4 tunnel (A, B, C, D) in parallel as example, the high-pressure liquid refrigerant directly enters distributing pipe through behind the throttling arrangement, and therefore, the Main Morphology of refrigerant is liquid in the distributing pipe, and the gaseous state ratio is less.
Because the cause of gravity, the refrigerant pressure of the porch that each is along separate routes in parallel is different, and the inlet outlet pressure differential that causes each road is inconsistent:
ΔPA＝P-P2
ΔPB＝ΔPA-P1
ΔPC＝ΔPA-P2
ΔPD＝ΔPA-P3
This shows that A road inlet outlet pressure differential bottom is maximum; D road inlet outlet pressure differential topmost is minimum, because the inlet outlet pressure differential of a shunt mainly is comprised of linear loss, it is worth substantially in hundred handkerchief levels, and therefore, pressure differential deltap P1, Δ P2, Δ P3 that this gravity produces just seem apparent in view.This will cause shunt cold medium flux topmost minimum; Shunt cold medium flux bottom is maximum, and a small amount of gas in the distributing pipe also can aggravate this lack of uniformity.
The prevapourising method of salary distribution (as shown in Figure 5), this mode is provided with the prevapourising pipeline, in the prevapourising pipeline, small part liquid refrigerants absorbing heat is converted to gaseous state, violent immixture produces the effect of similar foaming, the more natural method of salary distribution, the harmony of distributing increases, but because the liquid of pipe surface can flow downward and the settlement action of larger drop along tube wall, the flow (mass flow) of the high-end pipeline in the parallel pipeline and low side pipeline still has larger inhomogeneities.
The capillary method of salary distribution (as shown in Figure 6), the capillary method of salary distribution belongs to the pressure assignment of traffic, because the pressure reduction at capillary two ends is far longer than the along separate routes pressure reduction of liquid generation of high low side, therefore substantially can not be subject to the impact of gravity, each road assignment of traffic only is decided by the relative value of parameter capillaceous (internal diameter and length) between each road.But, this mode complex process, welding requirements is high, and operation is many, and the solder failure incidence is high, and cost is high.Also need do a large amount of infrastest for confirming diameter capillaceous and length.
Summary of the invention
The objective of the invention is the defective for the prior art existence, evaporation side heat exchanger circulating atomization distributor and circulating atomization method thereof are provided.The present invention converts refrigerant to the atomizing form before the heat exchanger of parallel connection carries out assignment of traffic, to eliminate or to reduce gravity to the harmful effect of distribution.
The technical solution adopted for the present invention to solve the technical problems is: evaporation side heat exchanger circulating atomization distributor, this circulating atomization distributor are arranged in the distributing pipe of cooling system and near the position of distributing pipe and prevapourising pipe connector;
Described circulating atomization distributor is a horn-like trunnion, and this horn-like trunnion is except the distribution tube wall in rear end tube wall and the outside links into an integrated entity, and all the other integral parts are that vacant state does not namely contact with the distributing pipe inwall at the distributing pipe inner chamber;
Space between described distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall.
The connected entrance that described horn-like trunnion wall is offered is specially to be offered at least one intercommunicating pore or communicating pipe is set.
The technical solution adopted for the present invention to solve the technical problems is: the circulating atomization method of evaporation side heat exchanger circulating atomization distributor the steps include:
A. high pressure refrigerant liquid enters the prevapourising pipeline and carries out heat exchange through behind the throttling arrangement, and in pre-evaporation stage, the partially liq absorbing heat is converted to gaseous coolant, forms the gas-liquid mixed state that is similar to the foaming shape; This mixture is entering distributing pipe through evaporation side heat exchanger circulating atomization distributor;
B. the refrigerant that has partly atomized pours distributing pipe; Space between distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall;
C. the horn-like port of the horn-like trunnion of refrigerant liquid runs down of atomizing is not got back to the refrigerant sedimentation accumulation area that do not atomize, and the drop refrigerant that part is larger also can be in sedimentation under the Action of Gravity Field or along distributing tube wall to amass at the refrigerant sedimentation accumulation area that do not atomize;
D. after the liquid level of the refrigerant sedimentation accumulation area that do not atomize surpassed intercommunicating pore or the height of communicating pipe, under the differential pressure action inside and outside the horn-like trunnion, the liquid refrigerants of the refrigerant sedimentation accumulation area that do not atomize was through intercommunicating pore or flow into horn-like trunnion communicating pipe;
E. the liquid refrigerants that flows into horn-like trunnion is changed under the fluid effect that the prevapourising pipe is come or part is converted to spray pattern, and the liquid of atomizing is not got back to the refrigerant sedimentation accumulation area that do not atomize again, forms dynamic recurrent state.
Evaporation side heat exchanger circulating atomization distributor of the present invention and circulating atomization method thereof are compared with existing technology, and have following beneficial effect:
Apparatus of the present invention are placed in the position of close prevapourising connector in the distributing pipe, are used for following situation (satisfying simultaneously): the evaporation side of air-conditioning system; Multi-channel parallel distributes heat exchange mode; There is obvious difference in height in each refrigerant porch along separate routes in parallel.
Effect of the present invention is to eliminate or reduce gravity each parallel connection is distributed uneven impact along separate routes, and balanced assignment of traffic is provided, and improves thus heat exchanger efficiency, the raising air-conditioning system efficient of heat exchanger.
This device produce an effect is before the heat exchanger of parallel connection carries out assignment of traffic, converts refrigerant to the atomizing form, to eliminate or to reduce gravity to the harmful effect of distribution.
Have that each pipeline heat exchanger distributing uniformity of high low side is better, cost is low, need not to do a large amount of infrastest, the characteristics such as the applicable different types of machines of good, a kind of structure of versatility, technique are simple, failure rate is low.
Description of drawings
Fig. 1 is the structural representation of position in the cooling system of evaporation side heat exchanger circulating atomization distributor of the present invention place;
Fig. 2-1, Fig. 2-2 is two kinds of example structure schematic diagrames of evaporation side heat exchanger circulating atomization distributor of the present invention;
Fig. 3 is the structural representation of whole cooling system of the prior art;
Fig. 4 is the structural representation that refrigerant of the prior art adopts the nature method of salary distribution;
Fig. 5 is the structural representation that refrigerant of the prior art adopts the prevapourising method of salary distribution;
Fig. 6 is the structural representation that refrigerant of the prior art adopts the capillary method of salary distribution.
The specific embodiment
Next explain to evaporation side heat exchanger circulating atomization distributor of the present invention and below the circulating atomization method work with reference to Figure of description.
Embodiment 1: shown in Fig. 1 and Fig. 2-1, evaporation side heat exchanger circulating atomization distributor, this circulating atomization distributor are arranged in the distributing pipe 1 of cooling system and near the position of distributing pipe and prevapourising pipe connector; Described circulating atomization distributor is a horn-like trunnion 2, and this horn-like trunnion is except the distribution tube wall in rear end tube wall and the outside links into an integrated entity, and all the other integral parts are that vacant state does not namely contact with the distributing pipe inwall at the distributing pipe inner chamber; Space between described distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area M that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall.
The connected entrance that described horn-like trunnion wall is offered is specially offers at least one intercommunicating pore 3.
The circulating atomization method of evaporation side heat exchanger circulating atomization distributor the steps include:
A. high pressure refrigerant liquid enters the prevapourising pipeline and carries out heat exchange through behind the throttling arrangement, and in pre-evaporation stage, the partially liq absorbing heat is converted to gaseous coolant, forms the gas-liquid mixed state that is similar to the foaming shape; This mixture is entering distributing pipe through evaporation side heat exchanger circulating atomization distributor;
B. the refrigerant that has partly atomized pours distributing pipe; Space between distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall;
C. the horn-like port of the horn-like trunnion of refrigerant liquid runs down of atomizing is not got back to the refrigerant sedimentation accumulation area that do not atomize, and the drop refrigerant that part is larger also can be in sedimentation under the Action of Gravity Field or along distributing tube wall to amass at the refrigerant sedimentation accumulation area M that do not atomize;
D. after the liquid level of the refrigerant sedimentation accumulation area that do not atomize surpassed the height of intercommunicating pore 3, under the differential pressure action inside and outside the horn-like trunnion, the liquid refrigerants of the refrigerant sedimentation accumulation area M that do not atomize flowed into horn-like trunnion through intercommunicating pore 3;
E. the liquid refrigerants that flows into horn-like trunnion is changed under the fluid effect that the prevapourising pipe is come or part is converted to spray pattern, and the liquid of atomizing is not got back to the refrigerant sedimentation accumulation area M that do not atomize again, forms dynamic recurrent state.
Embodiment 2: shown in Fig. 1 and Fig. 2-2, evaporation side heat exchanger circulating atomization distributor, this circulating atomization distributor are arranged in the distributing pipe 1 of cooling system and near the position of distributing pipe and prevapourising pipe connector; Described circulating atomization distributor is a horn-like trunnion 2, and this horn-like trunnion is except the distribution tube wall in rear end tube wall and the outside links into an integrated entity, and all the other integral parts are that vacant state does not namely contact with the distributing pipe inwall at the distributing pipe inner chamber; Space between described distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area M that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall.
The connected entrance that described horn-like trunnion wall is offered is specially at least one communicating pipe 4 is set.
The circulating atomization method of evaporation side heat exchanger circulating atomization distributor the steps include:
A. high pressure refrigerant liquid enters the prevapourising pipeline and carries out heat exchange through behind the throttling arrangement, and in pre-evaporation stage, the partially liq absorbing heat is converted to gaseous coolant, forms the gas-liquid mixed state that is similar to the foaming shape; This mixture is entering distributing pipe through evaporation side heat exchanger circulating atomization distributor;
B. the refrigerant that has partly atomized pours distributing pipe; Space between distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall;
C. the horn-like port of the horn-like trunnion of refrigerant liquid runs down of atomizing is not got back to the refrigerant sedimentation accumulation area that do not atomize, and the drop refrigerant that part is larger also can be in sedimentation under the Action of Gravity Field or along distributing tube wall to amass at the refrigerant sedimentation accumulation area M that do not atomize;
D. after the liquid level of the refrigerant sedimentation accumulation area that do not atomize surpassed the height of communicating pipe 4, under the differential pressure action inside and outside the horn-like trunnion, the liquid refrigerants of the refrigerant sedimentation accumulation area M that do not atomize flowed into horn-like trunnion through communicating pipe 4;
E. the liquid refrigerants that flows into horn-like trunnion is changed under the fluid effect that the prevapourising pipe is come or part is converted to spray pattern, and the liquid of atomizing is not got back to the refrigerant sedimentation accumulation area M that do not atomize again, forms dynamic recurrent state.
The above embodiment is a kind of of the more preferably concrete embodiment of the present invention, and the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacement all should be included in protection scope of the present invention.
Claims (3)
1. evaporation side heat exchanger circulating atomization distributor is characterized in that: this circulating atomization distributor is arranged in the distributing pipe of cooling system and near the position of distributing pipe and prevapourising pipe connector;
Described circulating atomization distributor is a horn-like trunnion, and this horn-like trunnion is except the distribution tube wall in rear end tube wall and the outside links into an integrated entity, and all the other integral parts are that vacant state does not namely contact with the distributing pipe inwall at the distributing pipe inner chamber;
Space between described distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall.
2. evaporation side heat exchanger circulating atomization distributor according to claim 1, it is characterized in that: the connected entrance that described horn-like trunnion wall is offered is specially to be offered at least one intercommunicating pore or communicating pipe is set.
3. the circulating atomization method of evaporation side heat exchanger circulating atomization distributor the steps include:
A. high pressure refrigerant liquid enters the prevapourising pipeline and carries out heat exchange through behind the throttling arrangement, and in pre-evaporation stage, the partially liq absorbing heat is converted to gaseous coolant, forms the gas-liquid mixed state that is similar to the foaming shape; This mixture is entering distributing pipe through evaporation side heat exchanger circulating atomization distributor;
B. the refrigerant that has partly atomized pours distributing pipe; Space between distributing pipe inwall and the horn-like trunnion outer wall forms the refrigerant sedimentation accumulation area that do not atomize, and this do not atomize refrigerant sedimentation accumulation area and horn-like trunnion inner chamber are by offering connected entrance and then forming connected state at horn-like trunnion wall;
C. the horn-like port of the horn-like trunnion of refrigerant liquid runs down of atomizing is not got back to the refrigerant sedimentation accumulation area that do not atomize, and the drop refrigerant that part is larger also can be in sedimentation under the Action of Gravity Field or along distributing tube wall to amass at the refrigerant sedimentation accumulation area that do not atomize;
D. after the liquid level of the refrigerant sedimentation accumulation area that do not atomize surpassed intercommunicating pore or the height of communicating pipe, under the differential pressure action inside and outside the horn-like trunnion, the liquid refrigerants of the refrigerant sedimentation accumulation area that do not atomize was through intercommunicating pore or flow into horn-like trunnion communicating pipe;
E. the liquid refrigerants that flows into horn-like trunnion is changed under the fluid effect that the prevapourising pipe is come or part is converted to spray pattern, and the liquid of atomizing is not got back to the refrigerant sedimentation accumulation area that do not atomize again, forms dynamic recurrent state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103044135A CN103032998A (en) | 2011-10-10 | 2011-10-10 | Cyclic atomizing distribution device for evaporation side heat exchanger and cyclic atomizing method for cyclic atomizing distribution device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103044135A CN103032998A (en) | 2011-10-10 | 2011-10-10 | Cyclic atomizing distribution device for evaporation side heat exchanger and cyclic atomizing method for cyclic atomizing distribution device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339893A (en) * | 2021-06-01 | 2021-09-03 | 青岛海信日立空调系统有限公司 | Flow divider, heat exchanger and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184473A (en) * | 1992-02-10 | 1993-02-09 | General Electric Company | Pressure controlled switching valve for refrigeration system |
| CN2677834Y (en) * | 2003-12-26 | 2005-02-09 | 山西省农业科学院农产品贮藏保鲜研究所 | High-efficient liquid distributor |
| CN1610811A (en) * | 2001-09-13 | 2005-04-27 | Bsh博施及西门子家用器具有限公司 | Refrigerating appliance comprising two evaporators |
| JP2005241023A (en) * | 2004-02-24 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Two phase flow distributor |
| AU2005292468A1 (en) * | 2004-10-01 | 2006-04-13 | Luvata Grenada Llc | Refrigerant distribution device and method |
-
2011
- 2011-10-10 CN CN2011103044135A patent/CN103032998A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5184473A (en) * | 1992-02-10 | 1993-02-09 | General Electric Company | Pressure controlled switching valve for refrigeration system |
| CN1610811A (en) * | 2001-09-13 | 2005-04-27 | Bsh博施及西门子家用器具有限公司 | Refrigerating appliance comprising two evaporators |
| CN2677834Y (en) * | 2003-12-26 | 2005-02-09 | 山西省农业科学院农产品贮藏保鲜研究所 | High-efficient liquid distributor |
| JP2005241023A (en) * | 2004-02-24 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Two phase flow distributor |
| AU2005292468A1 (en) * | 2004-10-01 | 2006-04-13 | Luvata Grenada Llc | Refrigerant distribution device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113339893A (en) * | 2021-06-01 | 2021-09-03 | 青岛海信日立空调系统有限公司 | Flow divider, heat exchanger and air conditioner |
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Application publication date: 20130410 |