CN2655130Y - Heat transfer tube structure for evaporating/condensing heat exchanger of adsorption refrigerator - Google Patents

Abstract

The utility model relates to a heating induction tube structure for the evaporation and condensation heating exchanger of an adsorption cooling device; the adsorption cooling device is provided with a vacuum chamber; the evaporation and condensation heating exchanger is positioned in the vacuum chamber and is provided with an upper, a middle and a lower heating induction tube; a plurality of mini finlike structures are arranged on the heating tube outer wall and the mini finlike structure comprises a convex structure and an eaves structure positioned on the top of the convex structure and with the width larger than the convex structure; the upper heating induction tube is made of the condensation tube; the middle heating induction tube is provided with a storage tank for storing the cooling medium; the lower heating induction tube is positioned and neighbored to the bottom of the vacuum chamber and is immerged in the liquefied cooling medium in the bottom of the vacuum chamber. Due to the mini finlike structure provides the heating induction tube with a larger heating induction area, and the adsorption force of the liquefied cooling medium on the tube wall is intensified, the utility model has the advantages of having simple structure and low cost, saving space and improving the efficiency of the evaporation and condensation heating exchange.

Description

The structure of the heat transfer tube of the evaporation/condensation heat exchanger of adsorption refrigerating device

Technical field

The utility model relates to a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, particularly a kind of heat transfer tube that is provided with plural miniature fin structure in the heat transfer tube outer tube wall.

Background technology

The conventional solid adsorption refrigeration system as shown in Figure 1, this adsorption refrigeration system 10 comprises a vacuum chamber body 11, the top of these vacuum chamber body 11 inside is provided with an adsorbent bed heat exchanger 12, this adsorbent bed heat exchanger 12 is made of the flat tube 122 of plural stage property wave fin 124, between wave fin 124, be filled with adsorbent 123, this adsorbent 123 can be silica gel, activated carbon, material such as activated alumina or zeolite, this adsorbent bed heat exchanger 12 is in advancing, the water side is respectively equipped with a water inlet pipe 13 and an outlet pipe 14, this water inlet pipe 13 connects hot water line 151 and cooling water pipeline 152 respectively by triple valve 15a, and this outlet pipe 14 connects hot water line 161 and cooling water pipeline 162 respectively by triple valve 16a.

Secondly, these adsorbent bed heat exchanger 12 belows in vacuum chamber body 11 inside are provided with an evaporation/condensation heat exchanger 17, this evaporation/condensation heat exchanger 17 has the circuitous curved circulation line of establishing 171, be provided with plurality of radiating fins 172 in circulation line 171, this circulation line 171 connect frozen water pipeline 153,163 by triple valve 15b, 16b respectively into and out of water end (W.E.); For cooperating the refrigerant circulation, the guiding incline 111 that can allow refrigerant concentrate is formed on the bottom of this vacuum chamber body 11, and with refrigerant conduit 112 refrigerant is communicated with and is transported to refrigerant storage tank 18 and concentrates, utilize a circulating pump 181 refrigerant to be transported to the nozzle 183 of evaporation/condensation heat exchanger 17 tops through refrigerant conduit 182 by refrigerant storage tank 18 again, by nozzle 183 refrigerant is sprayed to the evaporation/condensation heat exchanger 17 that is positioned at the below, carry out heat exchange in order to evaporation/condensation heat exchanger 17 and refrigerant, this refrigerant can be selected materials such as water, methyl alcohol, ethanol or ammonia.

At first, the cooling water that will be about 30 degree Celsius by water inlet pipe 13 is by cooling water pipeline 152 input adsorbent bed heat exchangers 12, adsorbent 123 can carry out suction-operated to refrigerant vapor, the evaporation/condensation heat exchanger 17 that be positioned at vacuum chamber body 11 belows this moment is to use as evaporimeter, and by triple valve 15b will be about Celsius 12 the degree frozen water input in the circulation line 171 by frozen water pipeline 153, liquid refrigerants utilization circulation 181 is transported to nozzle 183 to 17 ejections of evaporation/condensation heat exchanger, liquid refrigerants flashes to refrigerant vapor and rises to adsorbent bed heat exchanger 12 in evaporation/condensation heat exchanger 17 is that adsorbent 123 absorbs, the frozen water that flows through evaporation/condensation heat exchanger 17 simultaneously can be by cooling (being reduced to about seven degree Celsius by 12 degree Celsius), by frozen water pipeline 163 outputs that connect triple valve 16b, the frozen water of this output can be guided other air-conditioning equipment (for example air-conditioning box) as the frozen water source again.

After the absorption stroke finishes, water inlet pipe 13 changes by the hot water that will be about 85 degree Celsius by hot water line's 151 input adsorbent bed heat exchangers 12, the evaporation/condensation heat exchanger uses as condenser for 17 this moments, and the cooling water that will be about 30 degree Celsius is imported in the circulation lines 171 by cooling water pipeline 152, so refrigerant vapor that comes out by adsorbent bed heat exchanger 12 desorptions, can condense into liquid refrigerants at evaporation/condensation heat exchanger 17, and come together in vacuum chamber body 11 bottoms, be transported to refrigerant storage tank 18 via refrigerant conduit 112 again.

So, use two or more intermittent refrigerating plants are in parallel, and the suction of two refrigerating plants that suitably stagger, desorption stroke, continuous and continual refrigeration can be obtained.

Take a broad view of the aforementioned adsorption refrigerating device structure of commonly using, there is following shortcoming in it:

One, the composition assembly is many, the cost height;

Two, refrigerant circulating pump 181 is used to the pressure drag carrying refrigerant and overcome nozzle 183, must consume certain electric power;

Three, refrigerant circulating pump 181 needs the time-based maintenance maintenance, in order to avoid the vacuum environment of vacuum chamber body 11 is destroyed;

Four, be to obtain bigger spray area, this refrigerant nozzle 183 must keep a segment distance with evaporation/condensation heat exchanger 17, therefore also causes the waste in vacuum chamber body 11 spaces.

Summary of the invention

The purpose of this utility model provides a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, outer tube wall moulding projective structure prior to heat transfer tube, this projective structure outer rim of punching press makes and forms the eaves shape structure of wide cut greater than projective structure again, provides heat transfer tube to have bigger heat by this and passes area.

Secondary objective of the present utility model is to provide a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, and the outer tube wall of its heat transfer tube has miniature fin structure, can strengthen the adhesive force of liquid refrigerants on tube wall.

Another purpose of the present utility model is to provide a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, the outer tube wall of its heat transfer tube has miniature fin structure, can improve the evaporation/condensation heat exchange, therefore can simplify adsorption refrigerating device construction package, reduce cost.

Another purpose of the present utility model is to provide a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, the outer tube wall of its heat transfer tube has miniature fin structure, can improve evaporation/condensation usefulness, therefore can simplify the construction package of adsorption refrigerating device, reduction takies volume, saves the space.

A purpose more of the present utility model is to provide a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, and the constituent components of its adsorption refrigerating device is few, for ease of maintenaince maintenance.

A purpose more of the present utility model is to provide a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, need not to be provided with the refrigerant circulating pump, can save electric power.

For reaching above-mentioned purpose, the utility model provides a kind of structure of heat transfer tube of evaporation/condensation heat exchanger of adsorption refrigerating device, this adsorption refrigerating device has a vacuum chamber body, the evaporation/condensation heat exchanger is to be arranged in the vacuum chamber body, this evaporation/condensation heat exchanger is provided with, in, following three layers of heat transfer tube, has plural miniature fin structure in the heat transfer tube outer tube wall, this miniature fin structure comprises a projective structure, and be arranged at projective structure top and wide cut eaves shape structure greater than projective structure, the tubing that the heat transfer tube on upper strata is used with condensation constitutes, but the heat transfer tube in middle level has the storage tank that the cooling matchmaker stores, the heat transfer tube of lower floor abuts in vacuum chamber body bottom, and be soaked in the liquid refrigerants of vacuum chamber body bottom, provide heat transfer tube to have bigger heat by this miniature fin structure and pass area, and strengthen the adhesive force of liquid refrigerants on tube wall, to reach simplified structure, reduce cost, save the space, improve the effect of evaporation/condensation heat exchange usefulness.

For the ease of further understanding feature of the present utility model, purpose and function, with instantiation the utility model is elaborated below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structure configuration schematic diagram of known adsorption refrigeration system;

Fig. 2 is the structure configuration schematic diagram that the utility model is applied to adsorption refrigeration system;

Fig. 3 is the thin portion structural representation of heat transfer tube of the present utility model;

Fig. 4 A and Fig. 4 B are the step schematic diagrames of the utility model moulding micro fin structure on heat transfer tube;

Fig. 5 A to Fig. 5 C is the different preferred embodiments figure of miniature fin structure of the present utility model;

Fig. 5 D is the structural representation of another preferred embodiment of heat transfer tube of the present utility model;

Fig. 6 and Fig. 7 are the structure configuration maps that the utility model is applied to the different preferred embodiments of evaporation/condensation heat exchanger;

Fig. 8 and Fig. 9 are the structure configuration maps of the utility model collocation dish shape fin and cushion block;

Figure 10 is the structural representation of the heat transfer tube collocation dish shape fin of flat.

Description of reference numerals: 10-adsorption refrigeration system; 11-vacuum chamber body; The 111-guiding incline; 112-refrigerant conduit; 12-adsorbent bed heat exchanger; 121-vacuum chamber body; The 122-flat tube; The 123-adsorbent; 124-wave fin; The 13-water inlet pipe; 130-evaporation/condensation heat exchanger; 131,132-heat transfer tube; The 14-outlet pipe; The 140-liquid refrigerants; 15a, 15b-triple valve; The 151-hot water line; The 152-cooling water pipeline; 153-frozen water pipeline; 16a, 16b-triple valve; The 161-hot water line; The 162-cooling water pipeline; 163-frozen water pipeline; 17-evaporation/condensation heat exchanger; The 171-circulation line; The 172-radiating fin; 18-refrigerant storage tank; The 181-circulating pump; 182-refrigerant conduit; The 183-nozzle; The 20-adsorption refrigeration system; 21-vacuum chamber body; 22-adsorbent bed heat exchanger; 221-vacuum chamber body; The 222-flat tube; The 223-adsorbent; 224-wave fin; The 23-water inlet pipe; 230-evaporation/condensation heat exchanger; 231,232,233-heat transfer tube; The 24-outlet pipe; The 240-liquid refrigerants; 25a, 25b-triple valve; 250-dish shape fin; The 251-hot water line; The 252-cooling water pipeline; 253-frozen water pipeline; The 254-water inlet pipe; 26a, 26b-triple valve; The 260-cushion block; The 261-hot water line; The 262-cooling water pipeline; 263-frozen water pipeline; The 264-outlet pipe; The 265-storage tank; 30-evaporation/condensation heat exchanger; The 31-heat transfer tube; The 311-outer tube wall; The miniature fin structure of 312-; The 3121-projective structure; 3122-eaves shape structure; The 313-space; 321-vacuum chamber body; 330-evaporation/condensation heat exchanger; 331,332,333-heat transfer tube; The 340-liquid refrigerants; The 350-board; The wavy recess of 351-; The 360-cushion block; The 361-storage tank; The 40-liquid refrigerants; The 431-heat transfer tube; The 440-liquid refrigerants; 450-dish shape fin; The 51-heat transfer tube; The 511-outer tube wall; The miniature fin structure of 512-; The 5121-projective structure; 5122-eaves shape structure; The 5123-concave-arc part; The 513-space; The 61-heat transfer tube; The 611-outer tube wall; The miniature fin structure of 612-; The 6121-projective structure; 6122-eaves shape structure; The 6123-concave-arc part; The 613-space; The 71-heat transfer tube; The 711-outer tube wall; The miniature fin structure of 712-; The 7121-projective structure; 7122-eaves shape structure; The 7123-concave-arc part; The 713-space; The 80-heat transfer tube; The 81-outer tube; The 811-outer tube wall; The miniature fin structure of 812-; Pipe in the 82-; H1, H3, H6-upper strata; H4, H7-middle level; H2, H5, H8-lower floor; θ, θ 1-angle of inclination.

The specific embodiment

At first, consult Fig. 2 and Fig. 3, this adsorption refrigeration system 20 comprises a vacuum chamber body 21, the top of these vacuum chamber body 21 inside is provided with an adsorbent bed heat exchanger 22, this adsorbent bed heat exchanger 22 is made of the flat tube 222 of plural stage property wave fin 224, between wave fin 224, be filled with adsorbent 223, this adsorbent 223 can be silica gel, activated carbon, material such as activated alumina or zeolite, this adsorbent bed heat exchanger 22 is advancing, the water side is respectively equipped with a water inlet pipe 23 and an outlet pipe 24, this water inlet pipe 24 connects hot water line 251 and cooling water pipeline 252 respectively by triple valve 25a, and this outlet pipe 24 connects hot water line 261 and cooling water pipeline 262 respectively by triple valve 26a.

These adsorbent bed heat exchanger 22 belows in vacuum chamber body 21 inside are provided with an evaporation/condensation heat exchanger 30, this evaporation/condensation heat exchanger 30 has a circuitous curved heat transfer tube 31 of establishing, the water inlet end of this heat transfer tube 31 connects a water inlet pipe 254, this water inlet pipe 254 connects frozen water pipeline 253 by triple valve 25b, and the water side of this heat transfer tube 31 connects an outlet pipe 264, and this outlet pipe 264 connects frozen water pipeline 263 by triple valve 26b.

Fig. 3 is the thin portion structural representation of heat transfer tube 31, the outer tube wall 311 of this heat transfer tube 31 has the miniature fin structure 312 of plural number, this miniature fin structure 312 is made up of projective structure 3121 and eaves shape structure 3122, the bearing of trend of this projective structure 3121 generally becomes orthogonal with the outer tube wall 311 of heat transfer tube 31, this eaves shape structure 3122 is arranged at projective structure 3121 tops and its bearing of trend generally becomes orthogonal with projective structure 3121, the wide cut of eaves shape structure 3122 is greater than projective structure 3121, by this eaves shape structure 3122 and projective structure 3121 can and the outer tube wall 311 of heat transfer tube 31 between form a space 313.

The forming step of above-mentioned this miniature fin structure 312 sees also Fig. 4 A and Fig. 4 B, and its step comprises:

(a) shown in Fig. 4 A, at first, outer tube wall 311 moulding projective structures 3121 in heat transfer tube 31, if heat transfer tube 31 is a pipe, then can process outer tube wall 311 by cutter, with the projective structure 3121 of moulding around the monocycle shape of this outer tube wall 311, or by continuous machining, in the protruding helical structure of outer tube wall 311 moulding spiral surrounding outer tube walls 311, the projective structure 3121 of its moulding has a small tilt angle theta, and so this tilt angle theta does not hinder miniature fin structure 312 moulding;

(b) after projective structure 3121 moulding, for another example shown in Fig. 4 B, by these projective structure 3121 outer rims of stamping tool (not shown) punching press, make and form the eaves shape structure 3122 of wide cut greater than projective structure 3121, have multiple as for eaves shape structure 3122 plastic external forms, different and different according to stamping tool, the eaves shape structure 3122 among the figure is into point-like and is equally spaced on this projective structure 3121.

Can be by above-mentioned steps in the outer tube wall 311 moulding micro fin structures 312 of heat transfer tube 31, as shown in Figure 3, liquid refrigerants 40 can retain between this eaves shape structure 3122, projective structure 3121 and the outer tube wall 311 in the formed space 313, can strengthen the adhesive force of liquid refrigerants 40 on tube wall 311, directly evaporate liquid refrigerants 40 when being beneficial to evaporate, improve refrigerating capacity, improve evaporation/condensation heat exchange usefulness.

Below in conjunction with Fig. 2 structure configuration of the present utility model and start flow process are described, at first adsorb stroke, the cooling water that will be about 30 degree Celsius by water inlet pipe 23 is by cooling water pipeline 252 input adsorbent bed heat exchangers 22, adsorbent 223 can carry out suction-operated to refrigerant vapor, the evaporation/condensation heat exchanger 30 that be positioned at vacuum chamber body 21 belows this moment uses as evaporimeter, the frozen water that will be about 12 degree Celsius via triple valve 25b is by frozen water pipeline 253 input water inlet pipes 254, liquid refrigerants flashes to refrigerant vapor and rises to adsorbent bed heat exchanger 22 in evaporation/condensation heat exchanger 30 is that adsorbent 223 absorbs, the frozen water that flows through evaporation/condensation heat exchanger 30 simultaneously can be by cooling (being reduced to about seven degree Celsius by 12 degree Celsius), by frozen water pipe 263 outputs that connect triple valve 26b, the frozen water of this output can be guided other air-conditioning equipment (for example air-conditioning box) as the frozen water source again.

After the absorption stroke finishes, then carry out the desorption stroke, water inlet pipe 23 changes by the hot water that will be about 85 degree Celsius by hot water line's 251 input adsorbent bed heat exchangers 22, the evaporation/condensation heat exchanger uses as condenser for 30 this moments, the cooling water that will be about 30 degree Celsius via triple valve 25b is by cooling water pipeline 252 input water inlet pipes 254, so the refrigerant vapor by adsorbent bed heat exchanger 22 desorptions come out can condense into liquid refrigerants at evaporation/condensation heat exchanger 30.

So, use two or more intermittent refrigerating plants are in parallel, and the suction of two refrigerating plants that suitably stagger, desorption stroke, continuous and continual refrigeration can be obtained.

Seeing also Fig. 5 A to Fig. 5 D again, is the different preferred embodiments of heat transfer tube of the present utility model and miniature fin structure.

Shown in Fig. 5 A, the outer tube wall 511 of this heat transfer tube 51 has the miniature fin structure 512 of plural number, this miniature fin structure 512 is made up of projective structure 5121 and eaves shape structure 5122, the bearing of trend of this projective structure 5121 generally becomes orthogonal with the outer tube wall 511 of heat transfer tube 51, this eaves shape structure 5122 is the both sides that are symmetricly set in projective structure 5121 tops, and eaves shape structure 5122 has the concave-arc part 5123 that deviates from heat transfer tube 51 outer tube walls 511, by this eaves shape structure 5122 and projective structure 5121 can and the outer tube wall 511 of heat transfer tube 51 between form a space 513, liquid refrigerants 40 can retain in the space 513, strengthens the adhesive force of liquid refrigerants 40 on tube wall 511.

Shown in Fig. 5 B, the outer tube wall 611 of this heat transfer tube 61 has the miniature fin structure 612 of plural number, this miniature fin structure 612 is made up of projective structure 6121 and eaves shape structure 6122, the bearing of trend of this projective structure 6121 generally becomes orthogonal with the outer tube wall 611 of heat transfer tube 61, this eaves shape structure 6122 is arranged at projective structure 6121 tops, its bearing of trend generally becomes orthogonal with projective structure 6121, one end of this eaves shape structure 6122 little the sticking up that make progress, make eaves shape structure 6122 have the concave-arc part 6123 that deviates from heat transfer tube 61 outer tube walls 611, by this eaves shape structure 6122 and projective structure 6121 can and the outer tube wall 611 of heat transfer tube 61 between form a space 613, liquid refrigerants 40 can retain in the space 613, strengthens the adhesive force of liquid refrigerants 40 on tube wall 611.

Shown in Fig. 5 C, the outer tube wall 711 of this heat transfer tube 71 has the miniature fin structure 712 of plural number, this miniature fin structure 712 is made up of projective structure 7121 and eaves shape structure 7122, the bearing of trend of this projective structure 7121 generally becomes orthogonal with the outer tube wall 711 of heat transfer tube 71, this eaves shape structure 7122 is arranged at projective structure 7121 tops, it has the concave-arc part 7123 that deviates from heat transfer tube 71 outer tube walls 711, this eaves shape structure 7122 has a tilt angle theta 1, make an end of eaves shape structure 7122 little the sticking up that make progress, by this eaves shape structure 7122 and projective structure 7121 can and the outer tube wall 711 of heat transfer tube 71 between form a space 713, liquid refrigerants 40 can retain in the space 713, strengthens the adhesive force of liquid refrigerants 40 on tube wall 711.

Shown in Fig. 5 D, this heat transfer tube 80 is by the pipe 82 axial sheathed two-layer equation sleeve pipes that form in an outer tube 81 and, the miniature fin structure 812 that has plural number in the outer tube wall 811 of outer tube 81, the structure of this miniature fin structure 812 is identical with the structure of miniature fin structure 312 shown in Fig. 4 B, do not repeat them here, the characteristics of present embodiment are miniature fin structure 812 is arranged on the outer tube 81, manage outside 82 in again outer tube 81 being sheathed on, should in pipe 82 can adopt and commonly use condenser pipe and get final product, in other words, can keep former condenser pipe as interior pipe 82, outer tube 81 covers that will have miniature fin structure 812 again are if get final product outside the pipe 82 in being coated on.

See also configuration schematic diagram of the present utility model shown in Figure 6, evaporation/condensation heat exchanger 30 is arranged at vacuum chamber body 21 inside, this evaporation/condensation heat exchanger 30 has the heat transfer tube 31 of plural layer, and each layer heat transfer tube 31 is above, irregular down staggered kenel configuration, the heat pipe 31 that is arranged in the bottom abuts in vacuum chamber body 21 bottoms and is soaked in the liquid refrigerants 40 of vacuum chamber body 21 bottoms, the outer tube wall of this heat transfer tube 31 is equipped with miniature fin structure (shown in Fig. 3 or Fig. 4 B), directly evaporate liquid refrigerants 40 when being beneficial to evaporate, improve refrigerating capacity, improve evaporation/condensation heat exchange usefulness.

See also another configuration schematic diagram of the present utility model shown in Figure 7ly again, evaporation/condensation heat exchanger 130 is arranged at vacuum chamber body 121 inside, this evaporation/condensation heat exchanger 130 has the heat transfer tube 131 of plural layer, 132, and each layer heat transfer tube 131, more than 132, irregular down staggered kenel configuration, the heat transfer tube 131 that is positioned at upper strata H1 adopts traditional condenser pipe, 132 employings of heat transfer tube that are positioned at the H2 of lower floor have the heat transfer tube of miniature fin structure (its structure can with reference to shown in figure 3 or Fig. 4 B), the heat pipe 132 of the bottom abuts in vacuum chamber body 121 bottoms and is soaked in the liquid refrigerants 140 of vacuum chamber body 121 bottoms, directly evaporate liquid refrigerants 140 when being beneficial to evaporate, improve refrigerating capacity, improve evaporation/condensation heat exchange usefulness.

See also Fig. 8 again. shown in another configuration schematic diagram of the present utility model, evaporation/condensation heat exchanger 230 is arranged at vacuum chamber body 221 inside, this evaporation/condensation heat exchanger 230 has the upper strata of laying respectively at H3, middle level H4, the heat transfer tube 231 that the H5 of lower floor is three layers, 232,233, and each layer heat transfer tube 231,232, the 233rd, above, irregular down staggered kenel configuration, this heat transfer tube 231,232,233 all adopt heat transfer tube with miniature fin structure (its structure can with reference to shown in figure 3 or Fig. 4 B), wherein, the bottom that is positioned at the heat transfer tube 232 of middle level H2 is provided with has the upwards dish shape fin 250 of curved arc, this dish shape fin 250 can become semicircular arc sheet to constitute by one, also can form by the arc chip bonding of two mutual mirrors that are arranged at heat transfer tube 232 left and right sides, form the storage tank that feed flow attitude refrigerant 240 stores by this dish shape fin 250, in addition, the heat pipe 233 of the bottom abuts in vacuum chamber body 221 bottoms and is soaked in the liquid refrigerants 240 of vacuum chamber body 221 bottoms, directly evaporate liquid refrigerants 240 when being beneficial to evaporate, improve refrigerating capacity, improve evaporation/condensation heat exchange usefulness, one cushion block 260 can be set in vacuum chamber body 221 bottoms, these cushion block 260 tools are row storage tanks 265, this cushion block 260 is soaked in the liquid refrigerants 240 of vacuum chamber body 221 bottoms, be arranged in the corresponding storage tank 265 and abut in the heat transfer tube 233 of vacuum chamber body 221 bottoms, by this, not only can allow the vaporization function of orlop heat transfer tube 233 bring into play fully, and can avoid the liquid refrigerants 240 of vacuum chamber body 221 inside too much to waste of the sensible heat variation (liquid refrigerants 240 from adiabatic condensation temperature Celsius three ten degree reduced to evaporating temperature Celsius ten two degree) of some refrigerating capacities in refrigerant in the sweat cooling initial stage, and again because heat transfer tube 231,232,233 surface all can be provided with miniature fin structure, especially be positioned at upper strata H3, the heat transfer tube 231 of middle level H4,232, by combinations thereof, can guarantee each layer heat transfer tube 231,232,233 all can bring into play best evaporation/condensation heat exchange usefulness.

See also another configuration schematic diagram of the present utility model shown in Figure 9 again, evaporation/condensation heat exchanger 330 is arranged at vacuum chamber body 321 inside, this evaporation/condensation heat exchanger 330 has the upper strata of laying respectively at H6, middle level H7, the heat transfer tube 331 that the H8 of lower floor is three layers, 332,333, and each layer heat transfer tube 331,332, the 333rd, above, irregular down staggered kenel configuration, this heat transfer tube 331,332,333 all can adopt heat transfer tube with miniature fin structure (its structure can with reference to shown in figure 3 or Fig. 4 B), wherein, the bottom that is positioned at the heat transfer tube 332 of middle level H7 is provided with and is wavy board 350, each heat transfer tube 332 lays respectively at the wavy recess 351 of board 350, utilize each wavy recess 351 of this board 350 to form the storage tank that takes up liquid refrigerants 340 storages, in addition, the heat pipe 333 of the bottom abuts in vacuum chamber body 321 bottoms and is soaked in the liquid refrigerants 340 of vacuum chamber body 321 bottoms, directly evaporate liquid refrigerants 340 when being beneficial to evaporate, improve refrigerating capacity, improve evaporation/condensation heat exchange usefulness, one cushion block 360 can be set in vacuum chamber body 321 bottoms, these cushion block 360 tools are row storage tanks 361, this cushion block 360 is soaked in the liquid refrigerants 340 of vacuum chamber body 321 bottoms, be arranged in the corresponding storage tank 361 and abut in the heat transfer tube 333 of vacuum chamber body 321 bottoms, by this, not only can allow the vaporization function of orlop heat transfer tube 333 bring into play fully, and can avoid the liquid refrigerants 340 of vacuum chamber body 321 inside too much to waste of the sensible heat variation (liquid refrigerants 340 from adiabatic condensation temperature Celsius three ten degree reduced to evaporating temperature Celsius ten two degree) of some refrigerating capacities in refrigerant in the sweat cooling initial stage, and again because heat transfer tube 331,332,333 surface all can be provided with miniature fin structure, especially be positioned at upper strata H6, the heat transfer tube 331 of middle level H7,332, by combinations thereof, can guarantee each layer heat transfer tube 331,332,333 all can bring into play best evaporation/condensation heat exchange usefulness.

Please continue to consult Figure 10, this embodiment discloses the heat transfer tube 431 of a flat, respectively be provided with one in the both sides of heat transfer tube 431 and have the upwards dish shape fin 450 of curved arc, this dish shape fin 450 forms the storage tank that feed flow attitude refrigerant 440 stores, heat transfer tube 431 is soaked in the liquid refrigerants 440, in like manner, miniature fin structure (its structure can with reference to shown in figure 3 or Fig. 4 B) can be set in these heat transfer tube 431 surfaces, contrast mutually with Fig. 8 and Fig. 9 again, the heat transfer tube 431 of this flat and dish shape fin 450 can replace heat transfer tube 232 and the dish shape fin 250 of Fig. 8, or heat transfer tube 233 and cushion block 260, the heat transfer tube 332 and the board 350 that also can replace Fig. 9, or heat transfer tube 333 and cushion block 360, its effect that can reach is identical, so do not repeat them here.

In sum, the utility model can provide heat transfer tube to have bigger heat and pass area, and strengthen the adhesive force of liquid refrigerants on tube wall in heat transfer tube moulding micro fin structure, to reach simplified structure, reduce cost, save the space, to improve the purpose of evaporation/condensation heat exchange usefulness

The above only is preferred embodiment of the present utility model, can not limit scope of the present utility model with this, all equalizations of being done according to the utility model claim change and modify, will not lose main idea of the present utility model place, also do not break away from spirit and scope of the present utility model ground, all should be considered as further enforcement of the present utility model.

Claims (22)

1. the structure of the heat transfer tube of the evaporation/condensation heat exchanger of an adsorption refrigerating device, this adsorption refrigerating device has a vacuum chamber body, in this vacuum chamber body, be provided with an adsorbent bed heat exchanger and an evaporation/condensation heat exchanger, this evaporation/condensation heat exchanger is provided with the above heat transfer tube of one deck at least, and this heat transfer tube is communicated with an ingress pipe and a delivery line; It is characterized in that: the outer tube wall of this heat transfer tube has the miniature fin structure of plural number, and this miniature fin structure comprises a projective structure, and is arranged at projective structure top and the wide cut eaves shape structure greater than projective structure.

2. the structure of heat transfer tube as claimed in claim 1, it is characterized in that, the bearing of trend of this projective structure generally becomes orthogonal or has a gradient with the outer tube wall of heat transfer tube, the bearing of trend of this eaves shape structure generally becomes orthogonal or has a gradient with projective structure, by forming a space between this eaves shape structure and projective structure and the heat transfer tube outer tube wall.

3. the structure of heat transfer tube as claimed in claim 1 is characterized in that, this eaves shape structure has the concave-arc part that deviates from the heat transfer tube outer tube wall.

4. the structure of heat transfer tube as claimed in claim 1 is characterized in that, this heat transfer tube is that tubular axis is to the sheathed two-layer equation sleeve pipe that forms in an outer tube and one, and this projective structure and eaves shape structure are arranged at the outer tube wall of outer tube.

5. the structure of heat transfer tube as claimed in claim 1 is characterized in that, this heat transfer tube is provided with two-layer at least, and the heat transfer tube that is positioned at the upper strata constitutes with tubing with condensation, and the heat transfer tube that is positioned at lower floor has the storage tank that the cooling matchmaker stores.

6. the structure of heat transfer tube as claimed in claim 5 is characterized in that, in conjunction with a dishful of shape fin, is formed the storage tank of cooling matchmaker storage in the heat transfer tube of lower floor bottom by this dish shape fin.

7. the structure of heat transfer tube as claimed in claim 5 is characterized in that, each is in conjunction with a dishful of shape fin in the heat transfer tube both sides of lower floor, and this two dish shape fin forms the storage tank that the cooling matchmaker stores.

8. the structure of heat transfer tube as claimed in claim 5 is characterized in that, is provided with one in the heat transfer tube below of lower floor and is wavy board, and each heat transfer tube lays respectively at the wavy recess of board, and the wavy recess of each of this board forms the storage tank that takes up refrigerant.

9. the structure of heat transfer tube as claimed in claim 5 is characterized in that, this heat transfer tube is a flat tube.

10. the structure of heat transfer tube as claimed in claim 5 is characterized in that, this heat transfer tube that is positioned at lower floor is to be provided with two-layerly at least, and each layer heat transfer tube is with upper and lower irregular staggered kenel configuration.

11. the structure of heat transfer tube as claimed in claim 10 is characterized in that, this bottom heat transfer tube that is positioned at the heat transfer tube of lower floor abuts in vacuum chamber body bottom, and is soaked in the liquid refrigerants of vacuum chamber body bottom.

12. the structure of heat transfer tube as claimed in claim 11, it is characterized in that, this vacuum chamber body bottom is provided with the cushion block that a tool is the row storage tank, and this cushion block is soaked in the liquid refrigerants of vacuum chamber body bottom, is arranged in the corresponding storage tank and abut in the heat transfer tube of vacuum chamber body bottom.

13. the evaporation/condensation heat exchanger of an adsorption refrigerating device, this adsorption refrigerating device has a vacuum chamber body, in this vacuum chamber body, be provided with an adsorbent bed heat exchanger and an evaporation/condensation heat exchanger, this evaporation/condensation heat exchanger is provided with the upper, middle and lower-ranking heat transfer tube, and this heat transfer tube is communicated with an ingress pipe and a delivery line, it is characterized in that:

The outer tube wall of this heat transfer tube has the miniature fin structure of plural number, and this miniature fin structure comprises a projective structure, and is arranged at projective structure top and the wide cut eaves shape structure greater than projective structure;

The tubing that the heat transfer tube that is positioned at the upper strata is used with condensation constitutes;

But the heat transfer tube that is positioned at the middle level has the storage tank that the cooling matchmaker stores;

The heat transfer tube that is positioned at lower floor abuts in vacuum chamber body bottom, and is soaked in the liquid refrigerants of vacuum chamber body bottom.

14. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13 is characterized in that, each heat transfer tube that is positioned at the middle level is with upper and lower irregular staggered kenel configuration.

15. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13, it is characterized in that, the bearing of trend of this projective structure generally becomes orthogonal or has a gradient with the outer tube wall of heat transfer tube, the bearing of trend of this eaves shape structure generally becomes orthogonal or has a gradient with projective structure, forms a space between this eaves shape structure and projective structure and the heat transfer tube outer tube wall.

16. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13 is characterized in that, this eaves shape structure has the concave-arc part that deviates from the heat transfer tube outer tube wall.

17. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13 is characterized in that, this heat transfer tube is that tubular axis is to the sheathed two-layer equation sleeve pipe that forms in an outer tube and one, and this projective structure and eaves shape structure are arranged at the outer tube wall of outer tube.

18. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13 is characterized in that, in conjunction with a dishful of shape fin, is formed the storage tank of cooling matchmaker storage in the heat transfer tube in middle level bottom by this dish shape fin.

19. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13 is characterized in that, each forms the storage tank that the cooling matchmaker stores in conjunction with a dishful of shape fin by this two dish shape fin in the heat transfer tube both sides in middle level.

20. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13, it is characterized in that, be provided with one in the heat transfer tube below in middle level and be wavy board, each heat transfer tube lays respectively at the wavy recess of board, utilizes each wavy recess of this board to form the storage tank that takes up refrigerant.

21. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13 is characterized in that, this heat transfer tube is a flat tube.

22. the evaporation/condensation heat exchanger of adsorption refrigerating device as claimed in claim 13, it is characterized in that, this vacuum chamber body bottom is provided with the cushion block that a tool is the row storage tank, this cushion block is soaked in the liquid refrigerants of vacuum chamber body bottom, is arranged in the corresponding storage tank of cushion block and abut in the heat transfer tube of vacuum chamber body bottom.

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