CN201100787Y

CN201100787Y - Novel parallel flow evaporator

Info

Publication number: CN201100787Y
Application number: CNU2007200973552U
Authority: CN
Inventors: 崔书晨
Original assignee: TIANJIN YAXING RADIATOR CO Ltd
Current assignee: TIANJIN YAXING RADIATOR CO Ltd
Priority date: 2007-09-06
Filing date: 2007-09-06
Publication date: 2008-08-13
Anticipated expiration: 2017-09-06

Abstract

The utility model relates to a novel parallel stream-oriented evaporator, which comprises a collecting pipe which is assembled by an evaporation chamber and an end plate, an upper group and a lower group of collecting pipes are respectively communicated by two lines of flat tubes, fins are arranged among the flat tubes, an evaporation chamber baffle board is arranged in the collecting pipe, an air hole is arranged on the evaporation chamber baffle board, the left and the right sides of the upper collecting pipe are sealed by a gas inlet-outlet plug and a sealing seat, the outer side of the gas inlet-outlet plug is equipped with a gas inlet-outlet seat, the lower collecting pipe and the left and the right sides are sealed by the sealing seat and a circulation plug, the outer side of the circulation plug is equipped with a circulating connecting seat, a collecting pipe on one side of a gas inlet hole of the upper collecting pipe is accessed in a collecting pipe on one side of the lower collecting pipe, which is accessed in the collecting pipe on the other side of the lower collecting pipe through the circulating connecting seat, and is accessed on one side of a gas outlet hole of the upper collecting pipe through the other line of flat tubes, and is accessed in an air-conditioning system pipeline through the gas outlet hole, and cooling medium is led to flow into the upper cavity of the baffle board of a header pipe from the lateral face, and then evenly and separately flows into each hole of each tube pipe, and the inner holes of the flat.

Description

Novel parallel streaming evaporimeter

Technical field

The utility model belongs to the evaporimeter field in the refrigeration system; The evaporimeter field in the automobile air conditioning refrigerating system particularly.

Background technology

Evaporimeter is one of vitals of automotive air-conditioning system, and its structure is the sheet metal that is covered with heat transmission on the pipeline, realizes the device of the heat exchange of material in outside air and the pipeline with this.The cold-producing medium forced flow absorbs the air heat in the evaporimeter, makes air themperature descend, and cold air enters automotive interior, reaches the purpose that reduces temperature.Evaporation structure all adopts porous flat pipe as the refrigerant circulation canal at present; Adopt dome, pinnacle fin as core body and heat exchange with outside medium.Fin is the line contact with contacting of flat tube welding.Air inlet/outlet is arranged in the collector tube top.

The defective that this structure exists is: 1, owing to being hollow as refrigerant circulation canal porous flat pipe inside, limited with the contact-making surface of refrigerant; And its compressive resistance is general.2, because dome or pinnacle fin are the line contact with contacting of flat tube welding, heat conduction efficiency is lower.3, the refrigerant flow rate of the flat tube relative with inlet, outlet can be greater than other flat tube.

The utility model content

The purpose of this utility model is to overcome the defective of prior art, provides a kind of thermal efficiency higher evaporimeter.

The purpose of this utility model is achieved in that

Novel parallel streaming evaporimeter, comprise the header that vaporization chamber 5 and end plate 6 are assembled into, header respectively has one group up and down evaporimeter, is communicated with by two rows of flat pipes A13, flat tube B17 respectively in the middle of two groups of headers up and down, arranges fin 12 between flat tube A13 and the flat tube B17; Be furnished with vaporization chamber dividing plate 4 in the header, be furnished with passage 20 on the vaporization chamber dividing plate, the last header left and right sides is stifled 3 with turnover gas, seal receptacle A7 seals; Fit into air outlet base 14 in stifled 3 outsides of turnover gas, the lower header and the left and right sides seal with seal receptacle A7, seal receptacle B15, circulation stifled 9; At stifled 9 outsides of circulation assembling circulation connection seat 10, it is characterized in that: the air inlet one side header of going up header inserts lower header one side header through a rows of flat pipes A, insert lower header opposite side header by the circulation Connection Block, gas outlet one side by header in the other rows of flat pipes B access, insert the air-conditioning system pipeline by the gas outlet, make the dividing plate epicoele of refrigerant, evenly be diverted in the aperture of each flat tube again by side inflow collector; The side of described fin 12 is a rectangle, and described fin 12 tops are flat-top, is that face contacts with the way of contact of the porous flat pipe of one welding, and the endoporus of described flat tube A13 and flat tube B17 has increased interior wing 19.

Refrigerant passage is in proper order: the air inlet 1 one side headers of going up header insert lower header one side header through a rows of flat pipes A13, refrigerant is pooled to circulation Connection Block 10, insert lower header opposite side header, gas outlet 2 one sides by header in the other rows of flat pipes B17 access go out evaporimeter by gas outlet 2.

Compared with prior art, the beneficial effects of the utility model are: the employed porous flat pipe of this case has increased interior wing at the flat tube inwall, has strengthened heat exchange area, has strengthened the compressive resistance of flat tube; This case fin adopts the flat-top fin, makes the contact area of fin and flat tube increase greatly, and heat conduction efficiency obviously improves, and fin is the face contact with contacting of flat tube, and welding quality also significantly improves.Simultaneously because the increase of the contact area of the increase of flat tube intensity and fin and flat tube makes bulk strength be strengthened significantly.Air inlet/outlet is arranged in the header side, refrigerant flows into vaporization chamber dividing plate 4 earlier, and (vaporization chamber dividing plate, vaporization chamber are an integral body, for describing the clear mark of distinguishing) top, aperture shunting (rationally distributing: promptly make several apertures as required) by rationally distributing on the vaporization chamber dividing plate 4 again, evenly flow into cavity of resorption, refrigerant can flow into and each duct of outflow flat tube with even flow, thereby improves the effect of absorption refrigeration.

Description of drawings

Fig. 1 is the utility model structural representation front view, wherein, and 1. air inlet, 2 gas outlets, 3 turnover gas are stifled, 4 vaporization chamber dividing plates, 5 vaporization chambers, 6 end plates, 7 seal receptacle A, 8 side plate A, 9 circulations are stifled, 10 circulation connection seats, 11 side plate B, 12 fins, 13 flat tube A, 14 advance air outlet base, 15 seal receptacle B, 17 flat tube B.

Fig. 2 is the side view of Fig. 1; Wherein, 1. air inlet, 2 gas outlets, 4 vaporization chamber dividing plates, 5 vaporization chambers, 6 end plates, 13 flat tube A, 16 condensation mouths, 17 flat tube B, 20 passages.

Fig. 3 is a fin partial enlarged drawing in the utility model; Wherein, 12 fins, 18 fin tops.

Fig. 4 is a flat tube cross section enlarged drawing in the utility model; Wherein, 13 flat tube A, 19 interior wings.

The specific embodiment

Referring to Fig. 1, Fig. 2:

The vaporization chamber 5 that has vaporization chamber dividing plate 4 is made respectively with end plate 6; be assembled into header by riveted joint; header respectively has one group up and down evaporimeter; connect by two rows of flat pipes: " flat tube A " 13, " flat tube B " 17 in the middle of two groups of headers up and down; arrange fin 12 between flat tube and the flat tube, the outermost fin is respectively by " side plate A " 8 and " side plate B " 11 protections.

The last header left and right sides is stifled 3 with turnover gas, " seal receptacle A " 7 seals.Fit into air outlet base 14 (air inlet 1., gas outlet 2 are arranged in into air outlet base 14 both sides simultaneously) in stifled 3 outsides of turnover gas.The lower header and the left and right sides seal with " seal receptacle B " 15, circulation stifled 9.At stifled 9 outsides of circulation assembling circulation connection seat 10.The vaporization chamber dividing plate 4 that produces with vaporization chamber 5 can be made the passage 20 (shown in the section of vaporization chamber dividing plate 4 among Fig. 2) of different cross section according to the needs of cold medium flux, reaching the purpose of control cold medium flux, thereby guarantee the equilibrium of the heat exchange amount of the flow of refrigerant and fin 12.

The condensation that on fin 12 and " flat tube A " 13, " flat tube B " 17 surfaces, can produce in the evaporimeter process of refrigerastion, condensation flows downward and is pooled in the groove at condensation mouth 16 places, the purpose of arranging condensation mouth 16 is exactly that the condensation that is pooled to condensation mouth 16 is discharged, avoid condensation to stop up fin, cause not freely influence refrigeration of ventilation.

Refrigerant cyclic process: flow into upward header left side header by air inlet 1, by row " a flat tube A " 13, flow into lower header left side header, refrigerant is pooled to (among Fig. 1) circulation Connection Block 10, flow into lower header right side header, flow into upward header right side header by a row " flat tube B " 17, flow out evaporimeters by gas outlet 2.

Consider that from the manufacturing process aspect the utility model can adopt ripe full aluminium welding procedure manufacturing, this process is widely used in the automobile radiators of all-aluminium construction, the manufacturing of automobile warm-air core body, has the advantage of versatility from manufacturing process.

As Fig. 3, the side of fin 12 is a rectangle, fin top 18 is a flat-top, smooth top significantly increases it and the contact area of " flat tube A " 13 and " flat tube B " 17 contact area than normally used dome, pinnacle fin, the seam rate is improved greatly, increase the bulk strength of evaporimeter, and can improve stream condition effectively.

Simultaneously, the even curface of flat-top fin helps flowing of condensation, thereby plays the effect that improves ventilation effect and improve ventilation, makes the cooled air of more processes send into automotive interior, to reach better refrigeration.And,, reduced energy resource consumption because material has correspondingly been saved in the raising of efficient.

As Fig. 4, the endoporus of flat tube A13, (flat tube B17 has also done same processing) has increased interior wing 19, described in wing 19 cross sectional shapes be: on the madial wall in each hole of flat tube round, produce 4 lamellar projections.Purpose is to increase heat exchange area, simultaneously flat tube is played booster action, can reduce the flat tube wall thickness in the reasonable scope, and the flat tube material consumption is reduced, and has guaranteed the performance indications of product simultaneously again.

Claims

1, novel parallel streaming evaporimeter comprises the header that vaporization chamber and end plate are assembled into, and header respectively has one group up and down evaporimeter, is communicated with by two rows of flat pipes respectively in the middle of two groups of headers up and down, arranges the fin that is used for heat exchange between flat tube and the flat tube; Be furnished with the vaporization chamber dividing plate in the header, be furnished with passage on the vaporization chamber dividing plate, the last header left and right sides is stifled with turnover gas, seal receptacle seals; Fit into air outlet base in the stifled outside of turnover gas, the lower header and the left and right sides are blocked up and are sealed with seal receptacle, circulation; At the stifled outside of circulation assembling circulation connection seat; It is characterized in that: the air inlet one side header of going up header inserts lower header one side header through a rows of flat pipes A, insert lower header opposite side header by the circulation Connection Block, gas outlet one side by header in the other rows of flat pipes B access, insert the air-conditioning system pipeline by the gas outlet, the endoporus of described flat tube has increased interior wing.

2, novel parallel streaming evaporimeter according to claim 1 is characterized in that: the described fin shape that is used for heat exchange is: the side is a rectangle, and fin top is a flat-top.

3, novel parallel streaming evaporimeter according to claim 1 is characterized in that: the interior wing of described flat tube endoporus, its cross sectional shape is: the interior wing of producing 4 lamellar projections on the madial wall in each hole of flat tube round.