CN1908555A - Heat exchanger structure of air-conditioner - Google Patents
Heat exchanger structure of air-conditioner Download PDFInfo
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- CN1908555A CN1908555A CN 200510014679 CN200510014679A CN1908555A CN 1908555 A CN1908555 A CN 1908555A CN 200510014679 CN200510014679 CN 200510014679 CN 200510014679 A CN200510014679 A CN 200510014679A CN 1908555 A CN1908555 A CN 1908555A
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Abstract
The present invention relates to an air-conditioner technical field, especially to solve the problem with descendent heat exchange capacity due to the pressure loss and the variance in the temperature in the refrigeration/heating process of the present air-conditioner to educe the heat exchanger structure of air-conditioner. The heat exchanger structure of air-conditioner of the invention includes a fin folding arrange made of aluminum foil and the 'U'-shape copper pipe reeved into the fin hole to form a cuboid integer evaporator and a condensator, characterized in that, the evaporator is along the refrigerant flow direction, and the diameter of the heat exchange copper tube diminishes, while the condensator is along the refrigerant flow direction, the diameter of the heat exchange copper largens. The heat exchanger with change in gauge makes the heat exchange capacity of the refrigerant advance, increases the refrigeration/heating capacity of the air-conditioner.
Description
Technical field
The present invention relates to the technical field of air-conditioner, particularly relate to air-conditioning system heat exchange design, the present invention is for solving present air conditioner in refrigeration (heating) process, cold-producing medium is along in the heat exchanger flow process, owing to lose along stroke pressure, and variation of temperature, cause the problem of the decline of heat-exchange capacity, and derive the invention of the heat converter structure of air-conditioner.
Background technology
Air-conditioner is a kind of indoor climate adjusting device, and main composition partly comprises the cooling cycle system of compressor, condenser, throttling device and evaporimeter and the air circulation system that comprises hair-dryer, air channel and inlet and outlet.Air-conditioner is changed to flow back to after its temperature by the evaporimeter of heat-exchange device and condenser again and indoorly realizes refrigeration or heat and function such as clearing damp by drawing room air, so that provide pure and fresh and comfortable indoor air environment for people.
In general, air-conditioner is broadly divided into package AC plant and detachable air conditioner.Package AC plant all is contained in all parts in the casing, is installed in indoor and outdoor junction.As, window air conditioner is exactly a kind of widely used package AC plant, is installed on the room window, from the air inlet inspiration room air of indoor, flow back to from the air outlet of indoor more afterwards by heat exchanger cooling (or intensification) indoor, to realize regulating the effect of indoor temperature.
Air-conditioner is a kind of indoor temperature to be remained on the temperature required refrigerating/heating device of user, carry out heat exchange to realize room temperature lowering or intensification, for people provide fresh, comfortable air ambient by the cold-producing medium and the indoor flow air that circulate in its refrigeration system.The refrigeration system of air-conditioner mainly is made up of evaporimeter, condenser, compressor and throttling expansion device etc.
Detachable air conditioner is made up of indoor set and off-premises station, and the heat exchanger of evaporimeter or condenser effect has been set respectively in indoor set and off-premises station.Cold-producing medium circulates in evaporimeter and condenser by the conduit that connects between indoor set and the off-premises station and carries out the heat exchange circulation, moves with the refrigerating state operation that realizes air-conditioner or the state that heats.
In summer, air-conditioner carries out the refrigerating state operation, and the heat exchanger of its indoor set is an evaporimeter, and the heat exchanger of off-premises station is a condenser.Cold-producing medium airborne heat in the absorption chamber in indoor heat converter becomes gaseous state by liquid state, after the compressed again machine compression, in outdoor heat converter by the gaseous state liquefy to the outdoor heat of emitting.Cold-producing medium at the indoor heat converter that plays the evaporimeter effect, compressor, play in the outdoor heat converter of condenser effect and circulate the realization room temperature lowering.
In summer, the cold-producing medium in the refrigeration system carries out kind of refrigeration cycle by the order of evaporation → compression → condensation → expansion, realizes the air-conditioner refrigerating operaton; In the winter time, the then switching by reversal valve, cold-producing medium is realized the air conditioner heat-production operation according to heating circulation with the reverse order of kind of refrigeration cycle.Except common refrigerating/heating function, air-conditioner also has concurrently and becomes clean air after the indoor air filtration that will suck purifies and be discharged into the indoor air purifying function again, and has and be discharged into indoor dehumidification function again after the humid air that will suck becomes dry air.
In the winter time, air-conditioner heats the state operation, and the heat exchanger of its indoor set is a condenser, and the heat exchanger of off-premises station is an evaporimeter.Cold-producing medium heat in the absorption chamber outer air in outdoor heat converter becomes gaseous state by liquid state, after the compressed again machine compression, in indoor heat converter by the gaseous state liquefy, to the indoor heat of emitting.Cold-producing medium at the indoor heat converter that plays the condenser effect, compressor, play to circulate in the outdoor heat converter of evaporimeter effect and realize indoor intensification.
It is to adjust the flow of refrigerant direction by the action of control four-way change-over valve to realize that the refrigerating state operation of air-conditioner or the state that heats move.
Fig. 1 is the structure chart of existing cabinet type air conditioner indoor machine.As shown in Figure 1, cabinet type air conditioner indoor machine includes: chassis 1, on chassis 1, erect the casing 2 that is provided with and open front is arranged, be combined in the front of casing and have air outlet and the front panel of air suction inlet 7, be arranged on the top in the casing and place casing 2 with front panel 7 between evaporimeter 3, be arranged in the casing and place the following centrifugal fan 4 of evaporimeter 3.Evaporimeter 3 places in the drip tray 5, and drip tray 5 is by the external communications of outlet pipe 6 with casing 2.The top front face of front panel 7 has front air outlet 8, and the two sides, top form side air outlet 9 respectively, and the two sides, bottom form side air suction inlet 10 respectively.On the side air suction inlet 10 suction grille is installed, airstrainer 11 is set in the suction grille.
Evaporimeter 3 is a finned tube evaporator, folded neat arrangement of the fin that the book aluminium flake constitutes, and the copper tube that curves " U " shape penetrates in the fin hole one by one, makes evaporimeter form a rectangular-shaped integral body.
Cold-producing medium circulation is arranged in the evaporimeter copper tube, flow into that air carries out heat exchange in the casing outside the fin of cold-producing medium by high heat transfer coefficient and the evaporimeter in the evaporimeter 3.
In the refrigerating operaton, the air that carries out heat exchange with evaporimeter 3 is circulating in indoor and air-conditioner under the effect of centrifugal fan 4, to reduce the indoor temperature in air conditioning space.Under the swabbing action of centrifugal fan 4, room air enters in the air-conditioner from the side air suction inlet 10 of both sides, front panel 7 bottom, upwards flow and pass evaporimeter 3 and carry out heat exchange with evaporimeter, the air of being lowered the temperature by evaporimeter 3 flows back to indoor from the front air outlet 8 on front panel 7 tops and side air outlet 9, realize indoor cooling and refrigeration.
When air-conditioner carried out refrigerating operaton, cold-producing medium carried out kind of refrigeration cycle with the order of compressor of outdoor unit → outdoor condenser → off-premises station expansion valve → indoor machine evaporation.
That is, the high temperature and high pressure gaseous refrigerant that spues from compressor is through reversal valve inlet chamber external condenser,
Condensation heat release in condenser, the liquid refrigerant of warm high pressure in becoming, become the liquid refrigerant of low-temp low-pressure through the expansion valve decrease temperature and pressure, the interior evaporator evaporation of inlet chamber is absorbed heat and is become the gaseous refrigerant of low-temp low-pressure again, and carry out heat exchange with the evaporimeter ambient air, then, cold-producing medium returns and proceeds kind of refrigeration cycle again after compressor is compressed into high-temperature high-pressure state.
Fig. 2 is the air-conditioner outdoor unit part-structure figure of prior art.As shown in Figure 2, include outdoor condenser 75, compressor, the outdoor fan that is arranged on the chassis in the off-premises station.The front of off-premises station and top outward appearance are formed by radiator grille, and the back side and two sides outward appearance are formed by rear mask.Radiator grille one side has installs the exhaust outlet of discharging barrier, and rear mask one side is formed with air entry.Install down the dividing plate that forms above the chassis, the dividing plate both sides are provided with outdoor condenser 75 and compressor respectively, and the front of outdoor condenser 75 is provided with outdoor fan, and outdoor fan is by motor-driven, and motor is fixed on the electric machine support that is provided with on the chassis.
Air-conditioner circulates by evaporimeter and its ambient air and carries out heat exchange to realize the indoor temperature in reduction or rising air conditioning space, therefore, the structure of evaporimeter directly relates to the situation of carrying out heat exchange with its surrounding air, relates to the refrigerating/heating effect of air-conditioner.
With split type cabinet-type air conditioner air-conditioner is example, and an existing split type cabinet-type air conditioner uses indoor machine evaporation copper pipe diameter to be 5mm or 7mm usually, and outdoor condenser copper pipe diameter is 7mm or 9mm.
Existing heat exchanger as shown in Figure 3, Figure 4, no matter be evaporimeter or condenser, the copper pipe diameter of Dan Pin all is indeclinable, that is to say, when cold-producing medium flows in heat exchanger, caliber is constant, cold-producing medium is along in the journey flow process, because the lasting generation of heat exchange, and the reducing of heat transfer temperature difference, and, will cause the decline of heat-exchange capacity along drag losses of journey etc.
Summary of the invention
The problem that descends for the heat exchanger heat-exchange capacity of the air-conditioner that solves above-mentioned prior art, purpose of the present invention mainly is that the heat exchange copper tube of heat exchanger that air-conditioner is used is optimized design, a kind of heat converter structure of air conditioner is provided, improves the heat exchanger heat-exchange capacity.
For reaching the purpose of foregoing invention, adopt following technical scheme: a kind of heat converter structure of air-conditioner, comprise folded neat arrangement of fin that the book aluminium flake constitutes, the copper tube that curves " U " shape penetrates in the fin hole one by one, form a rectangular-shaped whole evaporimeter and condenser, it is characterized in that evaporimeter along cold-producing medium flow direction, the heat exchange copper tube diameter diminishes, condenser is along cold-producing medium flow direction, and the heat exchange copper tube diameter becomes big and constitutes.
The heat converter structure of described air-conditioner is characterized in that its evaporimeter and condenser, diminishes and becomes big along the place heat exchange copper tube diameter to flow process of cold-producing medium flow process.
The heat converter structure of described air-conditioner, the heat exchange copper tube longshore current journey back segment refrigerant outlet diameter that it is characterized in that its evaporimeter is than leading portion refrigerant inlet reduced 2/7ths.
The heat converter structure of described air-conditioner is characterized in that its evaporimeter longshore current Cheng Qian section refrigerant inlet diameter is 7mm, and longshore current journey back segment refrigerant outlet diameter is that the heat exchange copper tube of 5mm constitutes.
The heat converter structure of described air-conditioner, the heat exchange copper tube longshore current journey back segment refrigerant outlet diameter that it is characterized in that its condenser is than leading portion refrigerant inlet enlarged-diameter 2/7ths.
The heat converter structure of described air-conditioner is characterized in that its condenser is the heat exchange copper tube of 7mm by longshore current Cheng Qian section refrigerant inlet diameter, and back segment refrigerant outlet diameter is that the heat exchange copper tube of 9mm constitutes.
The invention effect: existing air-conditioner is in refrigeration (heating) process, cold-producing medium flows along heat exchange in the process, owing to lose along stroke pressure, and variation of temperature, cause the decline of heat-exchange capacity, and the heat converter structure after improving, as being example with air-conditioner when the refrigeration work, refrigerant flow direction is a design direction, and the terminal comb of evaporimeter is dwindled, and the condenser ends comb is enlarged, like this can be with the further throttling of the cold-producing medium in the evaporimeter, increase the evaporability of cold-producing medium, and in condenser because the expansion of pipeline, can reduce refrigerant pressure drop, increase the condensation ability of cold-producing medium.The heat exchanger of vary in diameter makes the heat-exchange capacity of cold-producing medium improve, and has strengthened the refrigeration of air-conditioning, heating capacity.
Description of drawings
Fig. 1 is the structure chart of existing cabinet type air conditioner indoor machine.
Fig. 2 is the air-conditioner outdoor unit part-structure figure of prior art.
Fig. 3 is the air conditioner room unit evaporimeter inner refrigerant flow graph of prior art.
Fig. 4 is the air-conditioner outdoor unit condenser inner refrigerant flow graph of prior art.
Fig. 5 is a cabinet air-conditioner indoor machine evaporation inner refrigerant flow graph of the present invention.
Fig. 6 is a cabinet air conditioner outdoor condenser inner refrigerant flow graph of the present invention.
Accompanying drawing drawing symbol description:
1: base 2: casing
3: evaporimeter 4: centrifugal fan
5: drip tray 6: outlet pipe
7: front panel 8: the front air outlet
9: side air outlet 10: the side air suction inlet
11: air filtration filter screen 75: condenser
D1: former evaporimeter diameter D1 ': the evaporimeter diameter after the variation
D2: former condenser diameter D2 ': the condenser diameter after the variation
The specific embodiment
Fig. 5 is a cabinet air-conditioner indoor machine evaporation inner refrigerant flow graph of the present invention.Fig. 6 is a cabinet air conditioner outdoor condenser inner refrigerant flow graph of the present invention.
Now in conjunction with the accompanying drawings cabinet air conditioner indoor machine evaporator improved structure of the present invention is further described.Will this split type cabinet-type air conditioner air-conditioner being designed to evaporimeter as Fig. 5, Fig. 6 embodiment 1 is the copper pipe of 7mm by leading portion refrigerant inlet D1 diameter, and longshore current journey back segment refrigerant outlet D1 ' diameter is the copper pipe of 5mm; Condenser is the copper pipe of 7mm by leading portion refrigerant inlet D2 diameter, and longshore current journey back segment refrigerant outlet D2 ' diameter is the copper pipe of 9mm.As being example with air-conditioning when the refrigeration work, cold-producing medium is during by evaporimeter, and preceding half section distance is because evaporation latent heat is big, temperature difference is also bigger, heat exchange is abundant, behind the stage casing, because the continuous evaporation of cold-producing medium, temperature begins to raise, heat-exchange capacity descends, but terminal comb dwindles, like this can be with the further throttling of the cold-producing medium in the evaporimeter, the temperature of cold-producing medium is reduced again, increase the evaporability of cold-producing medium, same, when cold-producing medium flows through condenser, the condenser ends comb is enlarged,, because the expansion of pipeline can reduce refrigerant pressure drop, maintain the heat transfer temperature difference of cold-producing medium and outdoor environment effectively, increase the condensation ability of cold-producing medium, so just can improve the refrigerating capacity of air-conditioning effectively, use this heat-exchange system, when air-conditioning heats running, in like manner also can increase the heating capacity of air-conditioning.
The heat exchange copper pipe diameter longshore current journey of evaporimeter diminishes, and it is big that the heat exchange copper pipe diameter longshore current journey of condenser becomes.The heat exchanger designs of vary in diameter is applicable to various forms of air-conditioners, as the integral type air-conditioning, and the split wall-hanging air conditioner, cabinet-type air conditioner, and the small commercial machine or the like.
Claims (6)
1, a kind of heat converter structure of air-conditioner, comprise folded neat arrangement of fin that the book aluminium flake constitutes, the copper tube that curves " U " shape penetrates in the fin hole one by one, form a rectangular-shaped whole evaporimeter and condenser, it is characterized in that evaporimeter is along cold-producing medium flow direction, the heat exchange copper tube diameter diminishes, and condenser is along cold-producing medium flow direction, and the heat exchange copper tube diameter becomes big and constitutes.
2, the heat converter structure of air-conditioner according to claim 1 is characterized in that its evaporimeter and condenser, diminishes and becomes big along the place heat exchange copper tube diameter to flow process of cold-producing medium flow process.
3, the heat converter structure of air-conditioner according to claim 1, the heat exchange copper tube longshore current journey back segment refrigerant outlet diameter that it is characterized in that its evaporimeter is than leading portion refrigerant inlet reduced 2/7ths.
4, the heat converter structure of air-conditioner according to claim 1 is characterized in that its evaporimeter longshore current Cheng Qian section refrigerant inlet diameter is 7mm, and longshore current journey back segment refrigerant outlet diameter is that the heat exchange copper tube of 5mm constitutes.
5, the heat converter structure of air-conditioner according to claim 1, the heat exchange copper tube longshore current journey back segment refrigerant outlet diameter that it is characterized in that its condenser is than leading portion refrigerant inlet enlarged-diameter 2/7ths.
6, the heat converter structure of air-conditioner according to claim 1 is characterized in that its condenser is the heat exchange copper tube of 7mm by longshore current Cheng Qian section refrigerant inlet diameter, and back segment refrigerant outlet diameter is that the heat exchange copper tube of 9mm constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014679 CN1908555A (en) | 2005-08-01 | 2005-08-01 | Heat exchanger structure of air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014679 CN1908555A (en) | 2005-08-01 | 2005-08-01 | Heat exchanger structure of air-conditioner |
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| CN1908555A true CN1908555A (en) | 2007-02-07 |
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| CN 200510014679 Pending CN1908555A (en) | 2005-08-01 | 2005-08-01 | Heat exchanger structure of air-conditioner |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528284A (en) * | 2013-09-23 | 2014-01-22 | 青岛海信日立空调***有限公司 | VRF air conditioning system and condenser thereof |
| CN108278801A (en) * | 2018-01-25 | 2018-07-13 | 海信（山东）空调有限公司 | A kind of condenser and air conditioner |
| CN112730277A (en) * | 2019-10-28 | 2021-04-30 | 佳能医疗***株式会社 | Automatic analyzer and reagent library thereof |
-
2005
- 2005-08-01 CN CN 200510014679 patent/CN1908555A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528284A (en) * | 2013-09-23 | 2014-01-22 | 青岛海信日立空调***有限公司 | VRF air conditioning system and condenser thereof |
| CN103528284B (en) * | 2013-09-23 | 2016-03-02 | 青岛海信日立空调***有限公司 | Multi-online air-conditioning system and condenser thereof |
| CN108278801A (en) * | 2018-01-25 | 2018-07-13 | 海信（山东）空调有限公司 | A kind of condenser and air conditioner |
| CN112730277A (en) * | 2019-10-28 | 2021-04-30 | 佳能医疗***株式会社 | Automatic analyzer and reagent library thereof |
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