CN102650480A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN102650480A CN102650480A CN2012100427807A CN201210042780A CN102650480A CN 102650480 A CN102650480 A CN 102650480A CN 2012100427807 A CN2012100427807 A CN 2012100427807A CN 201210042780 A CN201210042780 A CN 201210042780A CN 102650480 A CN102650480 A CN 102650480A
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Abstract
The invention provides a heat exchanger, which has low cost and can conduct heat exchange with good efficiency. An internal heat exchanger (14) has the configuration as follows: a multi-leaf pipe (32) having a plurality of protruding parts (32a) and recessed parts (32b) staggerly arranged in a circumferential direction of a pipe wall is arranged in a cylindrical outer pipe (31) along the same direction as the outer pipe. The outer surface of the top part of the protruding part (32a) appresses tightly against the inner surface of the outer pipe (31), and the outer surface of a cylindrical inner pipe (33) appresses tightly against the inner surface of the top part of the recessed part (32b). The inner pipe (33) is connected to connection pipes (14a, 14b), and a flowing path formed in the inner pipe (33) is used as a high pressure side tubing (141) of the internal heat exchanger (14). Connection pipes (14c, 14d) are connected to a flow path formed between the inner pipe (33) and the outer pipe (31), and the flow path formed between the inner pipe (33) and the outer pipe (31) is used as a low pressure tubing (142) of the internal heat exchanger (14).
Description
Technical field
The present invention relates to constitute the heat exchanger of the automatic vending machine of devices such as kind of refrigeration cycle, heat pump cycle.
Background technology
In the prior art; For example in the automatic vending machine of selling commodity such as tinned drink, PET bottled drink; Comprise and be used for the commodity that are contained in the goods holding storehouse are cooled off or heat for the cooling/heating apparatus of selling; Wherein, with heat-insulating material to indoor encirclement of main body cabinet as the automatic vending machine main body.
Cooling/heating apparatus constitutes: in the Machine Room, set compressor, storehouse outer heat-exchanger, expansion mechanism, inner heat exchanger, in the goods holding storehouse, set evaporimeter, and through the refrigerant pipe arrangement each equipment is connected.The cooling/heating apparatus that so constitutes is according to the operation mode of cooling heating, and air after cooling or the heating is circulated in the goods holding storehouse commodity such as the tinned drink that holds, PET bottled drink are cooled off or heat.
Compressor compresses refrigerant and through the refrigerant pipe arrangement it is circulated in each equipment, is using under the situation of carbon dioxide as refrigerant, and its high-pressure side is about 9MPa, and low-pressure side is about 2.5MPa.
The storehouse outer heat-exchanger is a fin tube heat exchanger, remaining condensation heat when being used for discharging the cooling running.Expansion mechanism makes the refrigerant decompression that when running cooling pass through and adiabatic expansion is for example used capillary (capillary), temperature expansion valve, electric expansion valve.The heat of evaporation (latent heat) that produces when evaporimeter is used for evaporating with refrigerant is to cooling off in the goods holding storehouse.Inner heat exchanger has high-pressure side pipe arrangement and the low-pressure side pipe arrangement of low temperature that portion within it carries out the high temperature of heat exchange.The high-pressure side pipe arrangement carries out pipe arrangement and connects between storehouse outer heat-exchanger and expansion mechanism, the low-pressure side pipe arrangement carries out pipe arrangement and connects between evaporimeter and compressor.
This inner heat exchanger is in the prior art through using tube-in-tube heat exchanger.Tube-in-tube heat exchanger is for through setting the most simply heat exchanger of form that two different metal tubulation materials of diameter constitute in inboard and the outside; Make and maintain easily because it has; Can increase and decrease heat transfer area as required; High temperature fluid and cryogen be many advantages such as adverse current fully, thereby still are widely used (for example with reference to patent documentation 1) now.
Yet, setting in the tube-in-tube heat exchanger of two diameter different metallic tubulation materials in inboard and the outside this, the problem of existence is fluid and the heat exchange performance between the fluid of its outside circulation that circulates in the pipe in being difficult to improve.
Therefore; In order to improve heat exchange performance; Various researchs have been carried out in the prior art; For example proposed to be rolled into helical form to manage the scheme (for example with reference to patent documentation 3) of the tube-in-tube heat exchanger of gained in fixing along the inner surface of outer tube at the tube-in-tube heat exchanger of the gap of columnar outer tube and interior pipe plug-in mounting reticulate body gained with interior pipe.
The prior art document
Patent documentation:
Patent documentation 1: japanese kokai publication sho 58-33091 communique
Patent documentation 2: TOHKEMY 2008-232449 communique
Patent documentation 3: TOHKEMY 2008-25902 communique
Summary of the invention
Invent problem to be solved
In using the tube-in-tube heat exchanger of carbon dioxide refrigerant as the cooling/heating apparatus of the refrigerant of high pressure; Existence is as the problem of withstand voltage of the interior pipe of high press fit pipe; For the refrigerant of the refrigerant that makes HTHP and low-temp low-pressure in the inside and outside circulation of sleeve pipe and carry out heat exchange; Need make the thickness thickening of interior pipe, outer tube, thereby have the problem that heat exchanger maximizes, material cost uprises.This external so that interior pipe in non-vibrating mode makes in outer tube pipe along the inner surface of outer tube, be wound in helical form (coiled pipe shape) with in the fixing formed tube-in-tube heat exchanger of interior pipe; Heat exchange area between the refrigerant of the low temperature that circulates as the interior pipe of the high-pressure side pipe arrangement of the refrigerant circulation that supplies high temperature and the outside of in this, managing diminishes; Can not effectively carry out heat exchange, thereby become the major reason that causes the heat exchanger effectiveness variation.
The present invention is for the problem that solves above-mentioned that kind proposes, and its purpose is with low cost a kind of heat exchanger that can efficient carries out heat exchange well to be provided.
Be used to solve the means of problem
In order to achieve the above object, the described heat exchanger of first aspect of the present invention is characterized in that having following structure, promptly comprises: columnar outer tube; The direction identical with above-mentioned outer tube with the edge is configured in the leafy pipe in the above-mentioned outer tube; The tube wall of above-mentioned leafy pipe alternately is formed with a plurality of protuberances and recess at circumferencial direction; The outer surface at raised part top and the inner surface of above-mentioned outer tube are close to, and the outer surface of the inner surface at above-mentioned recess top and columnar interior pipe is close to.
In addition; The described heat exchanger of second aspect of the present invention; It is characterized in that in above-described first aspect, the first fluid that flows in the stream that forms in the pipe in above-mentioned with above-mentioned in, manage and above-mentioned outer tube between in the stream that forms the second mobile fluid carry out heat exchange.
In addition, the described heat exchanger of the third aspect of the invention is characterized in that having following structure, promptly comprises columnar outer tube; The direction identical with above-mentioned outer tube with the edge is configured in the leafy pipe in the above-mentioned outer tube; The tube wall of above-mentioned leafy pipe alternately is formed with a plurality of protuberances and recess at circumferencial direction; The outer surface at raised part top and the inner surface of above-mentioned outer tube are close to, and the medial surface at above-mentioned recess top is close to each other.
In addition; The described heat exchanger of fourth aspect of the present invention; It is characterized in that in the above-described third aspect second fluid that flows in first fluid that flows in the stream that between above-mentioned leafy pipe and above-mentioned outer tube, forms and the stream that in above-mentioned leafy pipe, forms carries out heat exchange.
In addition; The described heat exchanger in the 5th aspect of the present invention; It is characterized in that above-described second or fourth aspect in; The serve as reasons refrigerant of the HTHP that the compressor that constitutes cooling/heating apparatus supplies with of above-mentioned first fluid, the refrigerant that above-mentioned second fluid is above-mentioned HTHP is back to the refrigerant of the low-temp low-pressure of above-mentioned compressor in evaporator evaporation.
The effect of invention
According to the described invention of first aspect, have following structure, that is, comprising: columnar outer tube; The direction identical with above-mentioned outer tube with the edge is configured in the leafy pipe in the above-mentioned outer tube; The tube wall of above-mentioned leafy pipe alternately is formed with a plurality of protuberances and recess at circumferencial direction; The outer surface at raised part top and the inner surface of above-mentioned outer tube are close to; The inner surface at above-mentioned recess top and columnar in the outer surface of pipe be close to, thus can be with the tubular cylindrical shape that becomes in refrigerant circulated that supplies HTHP, thus can keep the compressive resistance corresponding with the refrigerant of high pressure.
In addition; According to the described invention of second aspect; The first fluid that flows in the stream that in above-mentioned, forms in the pipe with in above-mentioned, manage and above-mentioned outer tube between in the stream that forms the second mobile fluid carry out heat exchange, can interior pipe be fixed on all the time the central authorities of outer tube thus.Thus; Can make as the interior pipe of the high-pressure side pipe arrangement of the refrigerant circulation that supplies high temperature and heat exchange area expansion between the refrigerant of the low temperature of the outside of interior pipe circulation; Thereby can effectively utilize heat exchange area; And combine with fin (fin) effect of leafy pipe and can realize high efficiency heat exchange, can realize miniaturization and reduce cost.
In addition,, have following structure, that is, comprising: columnar outer tube according to the described invention of the third aspect; The direction identical with above-mentioned outer tube with the edge is configured in the leafy pipe in the above-mentioned outer tube; The tube wall of above-mentioned leafy pipe alternately is formed with a plurality of protuberances and recess at circumferencial direction; The outer surface at raised part top and the inner surface of above-mentioned outer tube are close to; The medial surface at above-mentioned recess top is close to each other, thus at the inner heat exchanger of the refrigerant circulation that supplies HTHP, can make the high-pressure side pipe arrangement that forms between refrigerant cycle to leafy pipe and the outer tube of high pressure; Because the medial surface at recess top is close to each other, thereby can keep the compressive resistance corresponding with the refrigerant of high pressure.
In addition; According to the described invention of fourth aspect; Second fluid that flows in first fluid that flows in the stream that between above-mentioned leafy pipe and above-mentioned outer tube, forms and the stream that in above-mentioned leafy pipe, forms carries out heat exchange; Can make heat exchange area expansion outside as the leafy pipe of the high-pressure side pipe arrangement of the refrigerant circulation that supplies high temperature and between the refrigerant of the low temperature of leafy pipe internal circulation thus; Thereby can effectively utilize heat exchange area, and and can realize high efficiency heat exchange, can realize miniaturization and reduce cost.
In addition; According to the described invention in the 5th aspect; The serve as reasons refrigerant of the HTHP that the compressor that constitutes cooling/heating apparatus supplies with of above-mentioned first fluid; The refrigerant that above-mentioned second fluid is above-mentioned HTHP is back to the refrigerant of the low-temp low-pressure of above-mentioned compressor in evaporator evaporation; Thus through making the refrigerant and the refrigerant reverse flow in inner heat exchanger (adverse current) that becomes low-temp low-pressure in evaporator evaporation of the HTHP of supplying with via the storehouse outer heat-exchanger by compressor, thereby can efficient carry out the heat exchange between the refrigerant of refrigerant and low temperature of high temperature well.
Thus, according to the present invention, but can provide a kind of efficient to carry out the heat exchanger of heat exchange well with low cost.
Description of drawings
Fig. 1 is the cryogen circuit skeleton diagram that possesses according to the cooling/heating apparatus of the automatic vending machine of the heat exchanger of embodiment of the present invention.
Fig. 2 is the stereogram of cooling/heating apparatus that comprises the automatic vending machine of heat exchanger shown in Figure 1.
Fig. 3 is the figure that the heat exchanger of embodiment of the present invention 1 is shown, and (a) is its stereogram, the sectional view of (b) constructing for its pipe.
Fig. 4 is the figure that the heat exchanger of embodiment of the present invention 2 is shown, and (a) is its stereogram, the sectional view of (b) constructing for its pipe.
Symbol description
1 cooling/heating apparatus
11 compressors
14 inner heat exchangers
141 high-pressure side pipe arrangements
142 low-pressure side pipe arrangements
The 19a evaporimeter
The 19b evaporimeter
The 19c evaporimeter
31 outer tubes
32 leafy pipes
The 32a protuberance
The 32b recess
Pipe in 33
34 leafy pipes
The 34a protuberance
The 34b recess
The 34c medial surface
The specific embodiment
Below, at length describe with reference to the preferred implementation of accompanying drawing heat exchanger of the present invention.In addition, the present invention is not limited by this embodiment.
Fig. 1 is the cryogen circuit skeleton diagram of cooling/heating apparatus of automatic vending machine that possesses the heat exchanger of embodiment of the present invention, and Fig. 2 is the stereogram of cooling/heating apparatus that comprises the automatic vending machine of heat exchanger shown in Figure 1.
In the automatic vending machine of selling commodity such as tinned drink, PET bottled drink; Comprise and be used for the commodity that are contained in the goods holding storehouse are cooled off or heat for the cooling/heating apparatus of selling 1; Wherein, with heat-insulating material to indoor encirclement of main body cabinet as the automatic vending machine main body.
In cooling/heating apparatus 1, in not shown Machine Room, set compressor 11; Triple valve 12; Storehouse outer heat-exchanger 13; Inner heat exchanger 14; Expansion mechanism 15; Distributor 16; Refrigerant magnetic valve 17a, 17b, 17c; With collector 22.In addition; In the 2a of goods holding storehouse, set expansion mechanism 18a, evaporimeter 19a; In the 2b of goods holding storehouse, set expansion mechanism 18b, evaporimeter 19b, electrothermal heater 21b; In the 2c of goods holding storehouse, set expansion mechanism 18c, evaporimeter 19c, reheat heat exchanger 20, electrothermal heater 21c, constitute cooling/heating apparatus 1 through each equipment being connected with refrigerant pipe arrangement L.
The cooling/heating apparatus 1 that so constitutes circulates commodity such as the tinned drink that holds, PET bottled drink are cooled off or heat air after cooling or the heating according to the operation mode of cooling heating in goods holding storehouse 2a, 2b, 2c.At this, use have non-combustible, security, non-aggressive and to the little carbon dioxide of ozone layer influence as refrigerant.
The compressor 11 of cooling heating usefulness is used for refrigerant is compressed and it is circulated in cryogen circuit, is about 40 ℃, evaporating temperature in condensation temperature during the cooling running and is about-10 ℃ and uses down.Cooling is about 70 ℃, evaporating temperature in condensation temperature when adding heat run and is about-10 ℃ and uses down, and the high-pressure side is about 9MPa, and low-pressure side is about 2.5MPa.
In addition, when in to goods holding storehouse 2c, heating, the loop direction of the refrigerant of the HTHP of the machine of being compressed 11 compression is switched to the direction shown in the arrow C, make its reheat heat exchanger 20 circulations.
Storehouse outer heat-exchanger 13 is a fin tube heat exchanger, and remaining condensation heat when being used for discharging the cooling running is also used as evaporimeter when adding heat run.
Refrigerant decompression and adiabatic expansion that expansion mechanism 15,18a, 18b, 18c pass through when making the cooling running are for example used capillary, temperature expansion valve, electric expansion valve.
Refrigerant magnetic valve 17a, 17b, 17c are used to open and close to be made by compressor 11 compression and the refrigerant the supplied with cryogen circuit to evaporimeter 19a, 19b, 19c circulation.
Collector (gatherer) 22 is used to gather the refrigerant that is back to compressor 11 from evaporimeter 19a, 19b, 19c via the low-pressure side pipe arrangement 142 of inner heat exchanger 14.
And; Under the operation mode situation of in 1 pair of goods holding storehouse of cooling/ heating apparatus 2a, 2b, 2c, cooling off; Following constitute cryogen circuit, promptly refrigerant is connected to distributor 16 via the high-pressure side pipe arrangement 141 of storehouse outer heat-exchanger 13, inner heat exchanger 14, expansion mechanism 15 from compressor 11 on the arrow A direction of triple valve 12.Be connected to collector 22 via refrigerant magnetic valve 17a, expansion mechanism 18a, evaporimeter 19a on the one hand from distributor 16; In addition; Be connected to collector 22 from distributor 16 via refrigerant magnetic valve 17b, expansion mechanism 18b, evaporimeter 19b; And be connected to collector 22 via refrigerant magnetic valve 17c, expansion mechanism 18c, evaporimeter 19c, and be back to compressor 11 via the low-pressure side pipe arrangement 142 of inner heat exchanger 14 from collector 22 from distributor 16.
In the cryogen circuit that so constitutes; As compressor 11 running refrigerant magnetic valve 17a, 17b, when 17c opens; The refrigerant that is compressed after machine 11 compresses circulates to evaporimeter 19a, 19b, 19c; Make the air circulation of heat of evaporation (latent heat) cooling that is produced when evaporimeter 19a, 19b, the 19c evaporation by refrigerant through fan (not shown) thus and cool off in to goods holding storehouse 2a, 2b, 2c, and commodity such as the tinned drink that holds among goods holding storehouse 2a, 2b, the 2c, PET bottled drink are cooled off.
On the other hand; Under the cooling heating operation mode situation of goods holding storehouse 2a, 2b being cooled off, goods holding storehouse 2c being heated; Following formation cryogen circuit, that is: refrigerant is connected to distributor 16 from compressor 11 high-pressure side pipe arrangement 141, expansion mechanism 15 via reheat heat exchanger 20, storehouse outer heat-exchanger 13, inner heat exchanger 14 on the arrow C direction of triple valve 12.Be connected to collector 22 via refrigerant magnetic valve 17a, expansion mechanism 18a, evaporimeter 19a on the one hand from distributor 16; In addition; Be connected to collector 22 from distributor 16 via refrigerant magnetic valve 17b, expansion mechanism 18b, evaporimeter 19b, and refrigerant is back to compressor 11 from collector 22 via the low-pressure side pipe arrangement 142 of inner heat exchanger 14.
In the cryogen circuit that so constitutes; When compressor 11 runnings; Refrigerant magnetic valve 17a, when 17b opens; The refrigerant that is compressed the HTHP after machine 11 compression circulate in reheat heat exchanger 20, makes air circulation that the high heat of the refrigerant that is reached high temperature (for example about 70 ℃) heats through fan thus and to heating in the 2c of goods holding storehouse, and commodity such as the tinned drink that holds among the 2c of goods holding storehouse, PET bottled drink are heated.
In addition; Make the air circulation of heat of evaporation (latent heat) cooling that produces when in evaporimeter 19a, 19b, being evaporated and cool off in to goods holding storehouse 2a, 2b through fan, and commodity such as the tinned drink that holds among goods holding storehouse 2a, the 2b, PET bottled drink are cooled off by refrigerant.
(embodiment 1)
Fig. 3 is the figure that the inner heat exchanger 14 of embodiment of the present invention 1 is shown, and (a) is its stereogram, the sectional view of (b) constructing for its pipe.
And through interior pipe 33 is connected with tube connector 14a, 14b, thereby the streams that form in the pipe 33 in making are connected tube connector 14a as the high-pressure side pipe arrangement 141 of inner heat exchanger 14 with storehouse outer heat-exchanger 13, tube connector 14b is connected with expansion mechanism 15.
In addition; Through the stream that forms between tube connector 14c, 14d and interior pipe 33 and the outer tube 31 is connected; Thereby the stream that forms between pipe 33 and the outer tube 31 in making is as the low-pressure side pipe arrangement 142 of inner heat exchanger 14; Tube connector 14c is connected with collector 22, tube connector 14d is connected with compressor 11.
So, flow to the interior pipe 33 interior high-pressure side pipe arrangements 141 that form and be recycled to expansion mechanism 15 from tube connector 14a by the refrigerant (first fluid) of the compressor that constitutes cooling/heating apparatus 1 11 from tube connector 14b via the HTHP of storehouse outer heat-exchanger 13 supplies.
In addition; From expansion mechanism 15 via distributor 16, via refrigerant magnetic valve 17a, 17b, 17c; Expansion mechanism 18a, 18b, 18c, evaporimeter 19a, 19b, 19c and from collector 22 be back to refrigerant (second fluid) compressor 11, become low-temp low-pressure at evaporimeter 19a, 19b, 19c evaporation flow to from tube connector 14c in formation between pipe 33 and the outer tube 31 low-pressure side pipe arrangement 142 and be back to compressor 11 from tube connector 14d.
As above; According to this embodiment 1; Have following structure through inner heat exchanger 14 is constituted, that is: the edge disposes leafy pipe 32 with these outer tube 31 equidirectionals in columnar outer tube 31, and wherein the tube wall of this leafy pipe 32 alternately is formed with a plurality of protuberances (mountain portion) 32a and recess (paddy portion) 32b at circumferencial direction; The outer surface at protuberance 32a top and the inner surface of outer tube 31 are close to; The outer surface of pipe 33 and the inner surface at recess 32b top are close in columnar, can the interior pipe 33 of the refrigerant circulation that supplies HTHP be formed cylindrical shape, thereby can keep the compressive resistance corresponding with the refrigerant of high pressure.
In addition, because the outer surface at the protuberance 32a top of leafy pipe 32 and the inner surface of outer tube 31 are close to, the outer surface of columnar interior pipe 33 and the inner surface at recess 32b top are close to, thereby can interior pipe 33 be fixed on all the time the central authorities of outer tube 31.Thus; The interior pipe 33 and the heat exchange area between the refrigerant of the interior pipe 33 outside low temperature that circulate of the high-pressure side pipe arrangement that circulates as the refrigerant that supplies high temperature are enlarged; Thereby can effectively utilize heat exchange area; And combine with the fin effect of leafy pipe 32 and can also realize high efficiency heat exchange, can realize miniaturization and reduce cost.
And; Refrigerant through making the HTHP of supplying with via storehouse outer heat-exchanger 13 by compressor 11 and refrigerant reverse flow in inner heat exchanger 14 (adverse current) at evaporimeter 19a, 19b, 19c evaporation becoming low-temp low-pressure, thus can efficient carry out the heat exchange between the refrigerant of refrigerant and low temperature of high temperature well.
(embodiment 2)
Next with reference to Fig. 4 the heat exchanger according to embodiment of the present invention 2 is described.Fig. 4 is the figure that inner heat exchanger 14 is shown, and (a) is its stereogram, the sectional view of (b) constructing for its pipe.In addition, to using same reference numerals with embodiment 1 identical structure.
In embodiment 1; Has following structure; Promptly comprise columnar outer tube 31; The edge disposes leafy pipe 32 with these outer tube 31 equidirectionals in outer tube 31; Wherein the tube wall of this leafy pipe 32 alternately is formed with a plurality of protuberance 32a and recess 32b at circumferencial direction, and the outer surface at the protuberance 32a top of leafy pipe 32 and the inner surface of outer tube 31 are close to, and the outer surface of columnar interior pipe 33 and the inner surface at recess 32b top are close to; Make in interior pipe 33 refrigerant (first fluid) of the HTHP that flows in the stream that forms, supply with by the compressor that constitutes cooling/heating apparatus 1 11 thus, and the refrigerant (second fluid) that refrigerant that flow, HTHP is back to the low-temp low-pressure of compressor 11 in the stream that between interior pipe 33 and outer tube 31, forms at evaporimeter 19a, 19b, 19c evaporation carries out heat exchange.And in embodiment 2; Has following structure; Promptly comprise columnar outer tube 31; The edge disposes leafy pipe 34 with this outer tube equidirectional in outer tube 31; Wherein the tube wall of this leafy pipe 34 alternately is formed with a plurality of protuberance 34a and recess 34b at circumferencial direction, and the outer surface at the protuberance 34a top of leafy pipe 34 and the inner surface of outer tube 31 are close to, and the medial surface 34c at recess 34b top is close to each other; Make between leafy pipe 34 and outer tube 31 refrigerant (first fluid) of the HTHP that flows in the stream that forms, supply with by the compressor that constitutes cooling/heating apparatus 1 11 thus, evaporate and the refrigerant (second fluid) that is back to the low-temp low-pressure of compressor 11 carries out heat exchange at evaporimeter 19a, 19b, 19c with refrigerant that flow, HTHP in the stream that leafy pipe 34 in, forms.
And through tube connector 14c, 14d being connected to the stream that forms between leafy pipe 34 and the outer tube 31; Thereby make the high-pressure side pipe arrangement 141 of the stream of formation between leafy pipe 34 and the outer tube 31 as inner heat exchanger 14; Tube connector 14d is connected to storehouse outer heat-exchanger 13, tube connector 14c is connected to expansion mechanism 15.
In addition, through leafy pipe 34 is connected with tube connector 14a, 14b, thereby make the streams that form in the leafy pipe 34 low-pressure side pipe arrangement 142, tube connector 14b is connected to collector 22, tube connector 14a is connected to compressor 11 as inner heat exchanger 14.
The refrigerant (first fluid) of the HTHP of like this, being supplied with via storehouse outer heat-exchanger 13 by the compressor that constitutes cooling/heating apparatus 1 11 flows to the high-pressure side pipe arrangement 141 that forms between leafy pipe 34 and the outer tube 31 and is recycled to expansion mechanism 15 from tube connector 14c from tube connector 14d.
In addition; From expansion mechanism 15 via distributor 16, via refrigerant magnetic valve 17a, 17b, 17c; Expansion mechanism 18a, 18b, 18c; Evaporimeter 19a, 19b, 19c are back to compressor 11 from collector 22, and the refrigerant (second fluid) that becomes low-temp low-pressure at evaporimeter 19a, 19b, 19c evaporation flows to the low-pressure side pipe arrangement 142 of formation leafy pipe 34 in and is back to compressor 11 from tube connector 14a from tube connector 14b.
As above; According to this embodiment 2; Have following structure through inner heat exchanger 14 is constituted, that is: the edge disposes leafy pipe 34 with these outer tube 31 equidirectionals in columnar outer tube 31, and wherein the tube wall of this leafy pipe 34 alternately is formed with a plurality of protuberances (mountain portion) 34a and recess (paddy portion) 34b at circumferencial direction; The outer surface at protuberance 34a top and the inner surface of outer tube 31 are close to; The medial surface 34c at recess 34b top is close to each other, even thus at the inner heat exchanger 14 of the refrigerant circulation that supplies HTHP, the refrigerant cycle that can make high pressure is to the high-pressure side pipe arrangement 141 that forms between leafy pipe 34 and the outer tube 31; Because the medial surface 34c at recess 34b top is close to each other, thereby also can make it keep the compressive resistance corresponding with the refrigerant of high pressure.
In addition; Because heat exchange area outside as the leafy pipe of the high-pressure side pipe arrangement of the refrigerant circulation that supplies high temperature 34 and at the refrigerant of the low temperature of the internal circulation of leafy pipe 34 is enlarged; Thereby can effectively utilize heat exchange area; Can realize high efficiency heat exchange, can realize miniaturization and reduce cost.
Claims (5)
1. a heat exchanger is characterized in that, comprising:
Columnar outer tube; With
Leafy pipe; The said leafy pipe edge direction identical with said outer tube is configured in the said outer tube; Tube wall alternately is formed with a plurality of protuberances and recess at circumferencial direction; The outer surface at said protuberance top and the inner surface of said outer tube are close to, and the outer surface of the inner surface at said recess top and columnar interior pipe is close to.
2. heat exchanger as claimed in claim 1 is characterized in that:
The first fluid that flows in the stream that in said, forms in the pipe, and said in, manage and said outer tube between in the stream that forms the second mobile fluid carry out heat exchange.
3. a heat exchanger is characterized in that, comprising:
Columnar outer tube; With
Leafy pipe; The said leafy pipe edge direction identical with said outer tube is configured in the said outer tube; Tube wall alternately is formed with a plurality of protuberances and recess at circumferencial direction, and the outer surface at said protuberance top and the inner surface of said outer tube are close to, and the medial surface at said recess top is close to each other.
4. heat exchanger as claimed in claim 3 is characterized in that:
The first fluid that flows in the stream that between said leafy pipe and said outer tube, forms carries out heat exchange with second fluid that flows in the stream that in said leafy pipe, forms.
5. like claim 2 or 4 described heat exchangers, it is characterized in that:
The serve as reasons refrigerant of the HTHP that the compressor that constitutes cooling/heating apparatus supplies with of said first fluid, the refrigerant that said second fluid is said HTHP is back to the refrigerant of the low-temp low-pressure of said compressor in evaporator evaporation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-035452 | 2011-02-22 | ||
| JP2011035452 | 2011-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102650480A true CN102650480A (en) | 2012-08-29 |
Family
ID=46692548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100427807A Pending CN102650480A (en) | 2011-02-22 | 2012-02-22 | Heat exchanger |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2012189312A (en) |
| CN (1) | CN102650480A (en) |
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| CN105091652A (en) * | 2015-09-17 | 2015-11-25 | 西安交通大学 | Multistage finned tube capable of restraining frost formation and intensifying natural convection |
| CN113280654A (en) * | 2021-05-27 | 2021-08-20 | 张文军 | Sleeve type heat dissipation device |
| TWI777855B (en) * | 2021-11-18 | 2022-09-11 | 莊浚楓 | Vacuum water storage device |
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| JP2015010758A (en) * | 2013-06-28 | 2015-01-19 | 岩谷マテリアル株式会社 | Triple-tube type heat exchanger |
| JP6211313B2 (en) * | 2013-06-28 | 2017-10-11 | 岩谷マテリアル株式会社 | Triple tube heat exchanger |
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| WO2023048654A1 (en) * | 2021-09-27 | 2023-03-30 | Demir Fahrettin | Structure of a refrigerant pipe for freezing liquids |
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| CN201293590Y (en) * | 2008-11-18 | 2009-08-19 | 高宁 | Bottom waviness heat exchange tube |
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| JP4494049B2 (en) * | 2004-03-17 | 2010-06-30 | 株式会社ティラド | Method for manufacturing double tube heat exchanger and double tube heat exchanger by the method |
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| JP2008025902A (en) * | 2006-07-20 | 2008-02-07 | Fuji Electric Retail Systems Co Ltd | Heat exchanger and method of manufacturing heat exchanger |
| JP2008232449A (en) * | 2007-03-16 | 2008-10-02 | Sumitomo Light Metal Ind Ltd | Double tube type heat exchanger and its manufacturing method |
| CN101368801A (en) * | 2008-06-19 | 2009-02-18 | 杭州沈氏换热器有限公司 | Double-walled helical corrugation metal tube and method of processing the same |
| CN201242374Y (en) * | 2008-07-15 | 2009-05-20 | 西安石油大学 | Longitudinal spiral inner fin tube |
| CN201293590Y (en) * | 2008-11-18 | 2009-08-19 | 高宁 | Bottom waviness heat exchange tube |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105008839A (en) * | 2012-12-11 | 2015-10-28 | 三菱电机株式会社 | Double-pipe heat exchanger and refrigeration cycle device |
| CN105008839B (en) * | 2012-12-11 | 2017-04-05 | 三菱电机株式会社 | Double-tube type heat exchanger and refrigerating circulatory device |
| CN105091652A (en) * | 2015-09-17 | 2015-11-25 | 西安交通大学 | Multistage finned tube capable of restraining frost formation and intensifying natural convection |
| CN113280654A (en) * | 2021-05-27 | 2021-08-20 | 张文军 | Sleeve type heat dissipation device |
| TWI777855B (en) * | 2021-11-18 | 2022-09-11 | 莊浚楓 | Vacuum water storage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012189312A (en) | 2012-10-04 |
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