CN201363967Y

CN201363967Y - Heat exchanger used for refrigeration equipment

Info

Publication number: CN201363967Y
Application number: CNU2009201290735U
Authority: CN
Inventors: 倪军
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-01-07
Filing date: 2009-01-07
Publication date: 2009-12-16
Anticipated expiration: 2019-01-07
Also published as: WO2010078777A1

Abstract

The utility model discloses a heat exchanger used for refrigeration equipment, aiming at overcoming the defects of complex processing technology, low heat conduction efficiency, easy pollution to food and the like of the existing heat exchanger. The heat exchanger comprises a coiled tube and a plurality of radiating fins arranged outside the coiled tube, and is characterized in that: the inner wall of each tube in the coiled tube is provided with fins evenly distributed along the periphery, two ends of two adjacent tubes are respectively assembled with a communicating seat communicating the two tubes; the coiled tube and the communicating seat are contained in a metal conduction seat; and the radiating fins are vertically arranged on the surface of the metal conduction seat and are parallel to one another. The heat exchanger not only can be used as an evaporator in the refrigeration equipment, but also can be used as a condenser.

Description

The heat exchanger that is used for refrigeration plant

Technical field

The utility model relates to a kind of heat exchanger, the particularly a kind of evaporimeter of refrigeration plant or heat exchanger of condenser of being used for.

Background technology

In people's life, refrigeration plant has become an inseparable part.The refrigeration principle of general refrigeration machine as shown in Figure 9, compressor 02 sucks the working substance steam of the lower pressure that comes out from evaporimeter 01, it is pressed into condenser 03, in condenser 03, form high pressure and produce high temperature, be condensed into the higher liquid of pressure after heat is discharged, after choke valve 04 throttling, send into evaporimeter 01, absorb a large amount of heat owing to low-pressure makes its rapid evaporation in evaporimeter 01, steam is siphoned away by compressor again, thereby finishes a kind of refrigeration cycle.Heat exchanger in traditional refrigeration plant, the structure of its evaporimeter and condenser 100 comprise a plurality of fin 2 outside a coil pipe 1 and the coil pipe 1 as shown in Figure 1, and the cold-producing medium in the coil pipe 1 distributes after conducting to radiating fin 2 by tube wall 3 again.Along with people's use, the variety of problems of this heat exchanger on outmoded design basis also comes out:

1, in daily refrigeration plant, evaporimeter directly acts on cooled object, and as domestic refrigerator, evaporimeter is made into different shape, is positioned over refrigerating chamber in other words among the refrigerating chamber.No matter be direct-cooling type, or up-to-date drawer type, the food that is frozen may directly touch inner coil pipe, and inner evaporation coil is usually polluted by the raffinate of these foods also, so following may the generation just arranged: coil pipe can be tied ice of great thickness, influence the mechanism's running in the refrigerator; Food is easily by the coil pipe adhesion, and sled hits to such an extent as to use by force in user's use, and operation improperly causes that coil pipe breaks; After evaporator coil is contaminated, and easily cause the coil pipe oxidation that is corroded, cause coil pipe to break too early, spill cold-producing medium and refrigeration oil.The refrigerator refrigerating capacity is descended so that lose refrigeration output at last; Cold-producing medium that spills and refrigeration oil can directly pollute the food in the refrigerator, and after losing refrigerating capacity, can cause the food spoilage of storage in the refrigerator, and is the most obvious in the use of refrigerator-freezer.

2, the coil pipe of the condenser of traditional fin-type and evaporimeter is made by copper pipe, aluminum pipe or steel pipe, and seal in radiating fin outside and form, on processing technology, these radiating fins are copper pipe, aluminum pipe or steel pipe to be pressed among the circular hole of radiating fin by machine, even if how superior technology is again, following problem appears in the capital: the contact area between radiating fin and the pipe is little, absorb on the tube wall or the heat that spreads out of limited; The cryosurface or the disengagement area of tube wall are limited; The heat transfer coefficient of radiating fin itself is limited, thereby causes heat conduction efficiency low.

3, the mechanical strength of traditional condenser and evaporimeter is very low, and this is because the intensity of radiating fin itself is just very low, just occurs distortion easily under lower impact situation, thereby influences heat conducting effect, and this can see on the heat exchanger of a lot of idle calls.

4, processing technology is comparatively complicated, and coil pipe technology all is to be formed by multiple working procedure processing to a great extent.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, for refrigeration plant provides a kind of heat transfer efficiency height, processing technology is simple, the mechanical strength height, and can not pollute the heat exchanger of chilled food, this heat exchanger promptly can be used as evaporimeter, also can be used as condenser, can also be as the heat exchanger between other the liquids and gases.

In order to realize above-mentioned purpose, can adopt following technical scheme: the heat exchanger of this programme is same as the prior art, comprise a plurality of fin that coil pipe and coil pipe are outer, its improvement is that each tube inner wall in this coil pipe is provided with the fin that is uniformly distributed along the circumference, and the two ends of two adjacent pipes are respectively fitted with the connection seat that is communicated with these two pipes; This coil pipe and connection seat are inclusive among the metal conduction seat; Fin is vertical is arranged on the surface of metal conduction seat and is parallel to each other.

The cross section of above-mentioned a plurality of fin can be respectively the sheet of rectangle; Also trapezoidal sheet be can be respectively, and a plurality of and its central plane fin vertical, that be parallel to each other are connected with in the both sides of the fin of this trapezoidal sheet respectively.

Further, aforesaid a plurality of heat exchanger can be together in parallel and form the heat exchanger of a macro-energy.

Above-mentioned metal conduction seat can be plate shaped or annular or half oval ring.

The beneficial effects of the utility model are:

1, because the coil pipe inwall of this radiator is provided with the fin that is uniformly distributed along the circumference, this novel interior wall construction has improved the contact area between the working medium of evaporation or condensation greatly, thereby reaches thermal conduction effect preferably.

2, the conduction of the metal in this radiator seat has served as the effect of coil pipe outer wall in the prior art at this, thereby makes the intensity of coil pipe become very high, and heat conducting area is with respect to tens of times raising of the conduction surface of original coil pipe.

3, the composition surface of radiating fin in this radiator and metal conduction seat is big, and the thickness of fin and shape can design and produce by output heat output size and on-the-spot environmental requirement according to the coefficient of conductivity of material.

4, the connecting mode flexibility is strong, can parallel connection also can connect between each pipe, and also can be together in parallel with a plurality of conduction seats constitutes a powerful heat exchanger, thereby has enlarged the scope of using.

5, the heat conduction that this heat exchanger is good can realize permanent power conduction accurately, and according to the specific heat and the flow power output of heated object, power output=heating object specific heat is taken advantage of flow, thereby reaches purpose of energy saving.Can also determine the temperature of conductor according to design temperature, the very effective heat transfer effect that reaches the best.The temperature with conductor that can be similar to thinks to be heated the temperature of output.For example, 10 degrees centigrade air are passed through-7 degrees centigrade conduction fin with 1 cube/second air, can obtain-7 degrees centigrade air at output.

6, coil pipe in this heat exchanger and food are isolated fully, can never cause the pollution of food, and coil pipe can not corrode because of the corrosive liquids in the food yet.

7, production environment and simple production procedure are preferably arranged.At present, the extrusion forming technology of metal is quite ripe, can form very complicated structure in the inside of metal, so this technology can be used in this heat exchanger fully.And make heat exchanger following advantage is arranged with this technology:

(1) with special mould on extrusion moulding machine with coil pipe (fin that comprises coil pipe inside), fin and base one-shot forming and make corresponding section bar, with respect to traditional radiator, simplify greatly on the technology.The shape of extrusion modling can reach designing requirement fully, and the combining form of heat exchanger also can be according to the instructions for use arbitrary combination, so flexibility is strengthened greatly.

(2) above-mentioned section bar is cut into the base material that corresponding length promptly obtains needing to make condenser and evaporimeter; Process the plug position and take over the position in corresponding coil pipe position, more prefabricated plug is welded in the finished product that this position promptly can obtain condenser or evaporimeter with taking over.

In order to make the utility model be convenient to understand, it is described further below by drawings and Examples with more clear.

Description of drawings

Fig. 1 is traditional evaporimeter that is used for refrigeration plant and structure of condenser schematic diagram.

Fig. 2 (a) is the structural representation of the embodiment 1 of the utility model; Fig. 2 (b) is the A-A generalized section of Fig. 2 (a); Fig. 2 (c) is the B portion enlarged diagram of Fig. 2 (b); Fig. 2 (d) is the C portion enlarged diagram of Fig. 2 (c); Fig. 2 (e) is the D-D section enlarged diagram of Fig. 2 (c).

Fig. 3 (a) is the structural representation of the embodiment 2 of the utility model; Fig. 3 (b) is the E portion enlarged diagram of Fig. 3 (a).

Fig. 4 (a) is the structural representation of the embodiment 3 of the utility model; Fig. 4 (b) is the F portion enlarged diagram of Fig. 4 (a).

Fig. 5 is the structural representation of the embodiment 4 of the utility model.

Fig. 6 is the structural representation of the embodiment 5 of the utility model.

Fig. 7 is that the foregoing description is applied in the structural representation in the refrigerator.

Fig. 8 is that the foregoing description is applied in the structural representation in the air conditioner.

Fig. 9 is the operation principle schematic diagram of refrigeration plant.

The specific embodiment

Embodiment 1, referring to Fig. 2 (a) to (e).The heat exchanger 200 of present embodiment comprises a plurality of fin 20 outside coil pipe 10 and the coil pipe 10, each tube inner wall in this coil pipe 10 is provided with the fin 11 that is uniformly distributed along the circumference and sees [Fig. 2 (d)], and the two ends of two adjacent pipes are respectively fitted with the connection seat 40 that is communicated with these two pipes; This coil pipe 10 and connection seat 40 are inclusive in a plate shaped metal and conduct among the seat 30; On the surface that is arranged on metal conduction seat 30 that fin 20 is vertical and be parallel to each other.

The cross section of above-mentioned a plurality of fin 20 can be respectively the sheet [seeing Fig. 2 (c)] of rectangle; The cross section of a plurality of fin also can be respectively trapezoidal sheet 21[and see Fig. 3 (a) and (b)], and be connected with a plurality of and its central plane fin 60 vertical, that be parallel to each other respectively in the both sides of the fin 21 of this trapezoidal sheet, can improve the effect of heat transfer better like this, this structure is embodiment 2 of the present utility model.

Embodiment 3, referring to Fig. 4 (a) and (b).The heat exchanger 300 of present embodiment is that the heat exchanger in the foregoing description 200 is together in parallel, thereby constitutes the heat exchanger of a macro-energy.The number of heat exchanger in parallel can come to determine as required.

Embodiment 4, referring to Fig. 5.The difference of present embodiment and embodiment 1 only is that its metal conduction seat 31 is an annular, and its fin 22 is positioned among the endoporus of this annulus.

Embodiment 5, referring to Fig. 6.The difference of present embodiment and embodiment 1 only is that its metal conduction seat 32 is half oval ring, and its fin 23 is positioned among the inwall of this half elliptical ring.

Certainly, under the inspiration of the foregoing description, those skilled in the art can also be designed to similarly other shape and structure with the shape and the structure of metal conduction seat and fin.

Fig. 7 is that the foregoing description is applied in the structural representation in the refrigerator.Among the figure, refrigerator 70, evaporimeter Z1, condenser L1.

Fig. 8 is that the foregoing description is applied in the structural representation in the air conditioner.Among the figure, the evaporimeter Z2 in the air conditioner is placed on indoor, and condenser L2 is placed on outdoor, and the exterior wall in house is 80.

Only be the preferred embodiment of the utility model below, but it does not limit practical range of the present utility model, the equivalent variations and the modification that promptly do not depart from claim of the present utility model and done must belong to the protection domain of the utility model.

Claims

1, a kind of heat exchanger that is used for refrigeration plant, comprise a plurality of fin that coil pipe and coil pipe are outer, it is characterized in that each tube inner wall in this coil pipe is provided with the fin that is uniformly distributed along the circumference, the two ends of two adjacent pipes are respectively fitted with the connection seat that is communicated with these two pipes; This coil pipe and connection seat are inclusive among the metal conduction seat; Fin is vertical is arranged on the surface of metal conduction seat and is parallel to each other.

2, the heat exchanger that is used for refrigeration plant according to claim 1 is characterized in that the cross section of said a plurality of fin is respectively the sheet of rectangle.

3, the heat exchanger that is used for refrigeration plant according to claim 1, the cross section that it is characterized in that said a plurality of fin is respectively trapezoidal sheet, and is connected with a plurality of and its central plane fin vertical, that be parallel to each other respectively in the both sides of the fin of this trapezoidal sheet.

4,, it is characterized in that a plurality of these heat exchangers can be together in parallel to form the heat exchanger of a macro-energy according to claim 1 or the 2 or 3 described heat exchangers that are used for refrigeration plant.

5, the heat exchanger that is used for refrigeration plant according to claim 1, it is characterized in that said metal conduction seat be one plate shaped.

6, the heat exchanger that is used for refrigeration plant according to claim 1 is characterized in that said metal conduction seat is an annular.

7, the heat exchanger that is used for refrigeration plant according to claim 1 is characterized in that said metal conduction seat is half oval ring.