CN210197782U - Self-cascade refrigeration system uniform temperature evaporator - Google Patents

Abstract

The utility model provides a self-cascade refrigeration system temperature equalization evaporator, which comprises an evaporator and is characterized by further comprising a heat pipe, wherein the evaporator comprises fins and an evaporating pipe, the evaporating pipe is spirally distributed in a snake shape and is clamped with the fins, and the heat pipe penetrates through the fins and is distributed in the fins in parallel with the evaporating pipe; the heat pipes and the evaporation pipes are uniformly arranged in the fins, and a row of heat pipes is correspondingly arranged in one row of evaporation pipes; or a row of heat pipes is arranged between the two rows of evaporation pipes; the evaporating pipe is formed by bending one or more pipelines in multiple ways, and each evaporating pipe is parallel to each other and is arranged in multiple rows. The utility model discloses implant the heat pipe in the evaporimeter, conduct the cold volume of evaporating pipe to the heat pipe through the fin, then by the vertical transmission of heat pipe, at the other end, cold volume transmits the evaporating pipe once more to reduce the difference in temperature of the evaporator refrigerant flow direction.

Description

Self-cascade refrigeration system uniform temperature evaporator

Technical Field

The utility model relates to an evaporimeter design field specifically relates to a from cascade refrigeration system samming evaporimeter.

Background

The evaporator is an essential part of the low-temperature refrigeration system and is a component for outputting cold energy. Typically between the throttle valve and the compressor. The cold energy output by the evaporator cools the product or the test object, and a certain test or test effect is achieved. Because the flow passage of the evaporator has a certain tube pass from bottom to top or from top to bottom, the inlet and outlet fluids of the refrigerant have a certain temperature difference, which results in that the outlet air of the evaporator has a relatively obvious temperature difference from left to right or from top to bottom.

The patent document with the publication number of CN 104048460B discloses an evaporator, which comprises a refrigeration device and an evaporator, wherein the evaporator comprises a plurality of transverse evaporation plates arranged side by side in the front and back, a plurality of ice molds are separated between two adjacent transverse evaporation plates in the front and back through a plurality of longitudinal side plates, the longitudinal side plates are arranged side by side, a bolt penetrates through the longitudinal side plates in the same column, two ends of the bolt positioned at the outermost side are locked through nuts, a rubber tube is sleeved on the bolt, two side surfaces of each longitudinal side plate are provided with sealing rings, the upper end surface of the periphery of the evaporator is provided with a connecting strip, the lower end surface of the connecting strip is provided with two clamping grooves, the clamping grooves are used for connecting the longitudinal side plates at the periphery of the evaporator, the upper end surface of the connecting strip is provided with a dovetail groove for connecting a cover plate of the evaporator, the dovetail groove and the clamping grooves are provided with first sealing rings, each transverse evaporation plate is, each partition has a trapezoidal cross section. This solution does not solve the problem of the temperature difference existing between the inlet and the outlet of the evaporator.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a from cascade refrigeration system samming evaporimeter.

According to the utility model provides a from cascade refrigeration system samming evaporimeter, including the evaporimeter, still include the heat pipe, the evaporimeter includes fin, evaporating pipe, the evaporating pipe snakelike spiral distributes and inside the fin and with the fin joint, the heat pipe passes the fin and is on a parallel with the evaporating pipe and distributes in the fin;

the heat pipes and the evaporation pipes are uniformly arranged in the fins, and a row of heat pipes is correspondingly arranged in one row of evaporation pipes; or a row of heat pipes is arranged between the two rows of evaporation pipes;

the evaporating pipe is formed by bending one or more pipelines in multiple ways, and each evaporating pipe is parallel to each other and is arranged in multiple rows.

Preferably, the evaporator is an air-cooled evaporator.

Preferably, the evaporation tube is a copper tube.

Preferably, the heat pipe and the evaporation pipe have a space therebetween.

Preferably, the heat pipe is fixed by the layer of fins, and conducts and radiates heat to the evaporation pipe through the fins.

Preferably, one or more rows of evaporation tubes and one or more rows of heat pipes are arranged in the fin.

Preferably, the heat pipes and the evaporation pipes are alternately distributed in the fins.

Preferably, the gaps between the fins are 2-10 mm.

Preferably, the two ends of the fins are not flush, and the distances between the fins are not equal.

The invention provides a self-cascade refrigeration system temperature-equalizing evaporator which comprises an evaporator and a heat pipe, wherein the evaporator comprises fins and evaporation pipes, the evaporation pipes are spirally distributed in a snake shape and are clamped with the fins, and the heat pipe penetrates through the fins and is distributed in the fins in parallel to the evaporation pipes;

the heat pipes and the evaporation pipes are uniformly arranged in the fins, and a row of heat pipes is correspondingly arranged in one row of evaporation pipes; or a row of heat pipes is arranged between the two rows of evaporation pipes;

the evaporation tubes are formed by bending one or more pipelines in multiple ways, and each evaporation tube is parallel to each other and is arranged in multiple rows;

the evaporator adopts an air-cooled evaporator;

the evaporation tube adopts a copper tube;

a space is reserved between the heat pipe and the evaporation pipe;

the heat pipe is fixed by the fins layer by layer and conducts and radiates heat to the evaporation pipe through the fins;

one or more rows of evaporation tubes and one or more rows of heat tubes are arranged in the fins;

the heat pipes and the evaporation pipes are alternately distributed in the fins;

gaps among the fins are 2-10 mm;

the two ends of the fins are not parallel and level, and the distances between the fins are not equal.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model discloses implant the heat pipe in the evaporimeter, conduct the cold volume of evaporating pipe to the heat pipe through the fin, then by the vertical transmission of heat pipe, at the other end, cold volume transmits the evaporating pipe once more to reduce the difference in temperature of the evaporator refrigerant flow direction.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of the present invention.

Fig. 2 is a right-side view schematic diagram of the present invention.

Fig. 3 is a left side view of the present invention.

Fig. 4 is a schematic view of the heat conduction principle of the heat pipe of the present invention.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The utility model provides a from cascade refrigeration system samming evaporimeter for high low-temperature cabinet or from cascade refrigeration system solve the inhomogeneous problem of evaporimeter temperature distribution. The evaporator is skillfully combined with the heat pipe, so that the problem of congenital uneven cold and heat of the evaporator is remarkably improved, the transverse temperature difference is integrally reduced from the evaporator, and the temperature difference of the air outlet temperature is obviously reduced, thereby providing a better hardware basis for a self-overlapping refrigerating system product with high requirement on temperature uniformity.

According to the utility model provides a from cascade refrigeration system samming evaporimeter, including the evaporimeter, still include the heat pipe, the evaporimeter includes fin, evaporating pipe, the evaporating pipe snakelike spiral distributes and inside the fin and with the fin joint, the heat pipe passes the fin and is on a parallel with the evaporating pipe and distributes in the fin; the heat pipes and the evaporation pipes are uniformly arranged in the fins, and a row of heat pipes is correspondingly arranged in one row of evaporation pipes; or a row of heat pipes is arranged between the two rows of evaporation pipes; the evaporating pipe is formed by bending one or more pipelines in multiple ways, and each evaporating pipe is parallel to each other and is arranged in multiple rows. The evaporator adopts an air-cooled evaporator. The evaporating pipe is a copper pipe. The heat pipe and the evaporation pipe are spaced. The heat pipe is fixed by the fins layer by layer and conducts and radiates heat to the evaporation pipe through the fins. One or more rows of evaporation tubes and one or more rows of heat pipes are arranged in the fins. The heat pipes and the evaporation pipes are alternately distributed in the fins. The gaps between the fins are 2-10 mm. The two ends of the fins are not parallel and level, the distances between the fins are unequal, air disturbance is increased, and heat dissipation of the fins is facilitated. The heat pipe is parallel to the copper pipe of the evaporator and is arranged in the middle of the fin, the fin is used as the extension surface of the heat pipe, the surface heat dissipation area of the heat pipe is increased, and meanwhile, the heat conduction of the fin between the copper pipe of the evaporator and the heat pipe can be carried out efficiently.

Preferably, the heat pipe is arranged in the fin and is parallel to the copper pipe, the copper pipe generates a front-back temperature difference due to flowing of a refrigerant and heat exchange with air, heat is transferred to the heat pipe through the fin, and the heat pipe transfers the heat from the downstream of the copper pipe to the upstream of the copper pipe with lower temperature, so that the overall temperature of the evaporator is uniform. Fig. 1-3 are evaporator configurations of a self-cascade refrigeration system vapor-equalizing evaporator. In the figure, the copper pipes can be arranged in 1 row, 2 rows and N rows (N is a natural number), and the heat pipes can be arranged in 1 row, 2 rows and N rows (N is a natural number). The heat pipes and the copper pipes are relatively and uniformly arranged, and 1 heat pipe is configured for every 2 copper pipe passes in the figure. N (N is a natural number) heat pipes can be configured for every N (N is a natural number) copper pipe passes.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims (10)

1. The self-cascade refrigeration system temperature-equalizing evaporator comprises an evaporator and is characterized by also comprising heat pipes, wherein each evaporator comprises fins and evaporation pipes, the evaporation pipes are spirally distributed in a snake shape and are clamped with the fins, and the heat pipes penetrate through the fins and are distributed in the fins in parallel to the evaporation pipes;

the heat pipes and the evaporation pipes are uniformly arranged in the fins, and a row of heat pipes is correspondingly arranged in one row of evaporation pipes; or a row of heat pipes is arranged between the two rows of evaporation pipes;

the evaporating pipe is formed by bending one or more pipelines in multiple ways, and each evaporating pipe is parallel to each other and is arranged in multiple rows.

2. The self-cascade refrigeration system temperature equalization evaporator of claim 1, wherein the evaporator is an air cooled evaporator.

3. The self-cascade refrigeration system temperature equalization evaporator of claim 1, wherein the evaporator tubes are copper tubes.

4. The self-laminating refrigeration system temperature equalization evaporator of claim 1, wherein the heat pipe is spaced apart from the evaporator tube.

5. The self-cascade refrigeration system temperature equalization evaporator of claim 1, wherein the heat pipes are fixed by the fins layer by layer, and conduct and dissipate heat to the evaporation pipes through the fins.

6. The self-laminating refrigeration system temperature equalization evaporator of claim 1, wherein one or more rows of evaporator tubes are disposed within the fin, and one or more rows of heat pipes are disposed.

7. The self-laminating refrigeration system temperature equalization evaporator of claim 1, wherein the heat pipes and evaporator tubes are alternately distributed in fins.

8. The self-cascade refrigeration system temperature equalization evaporator of claim 1, wherein the gaps between the fins are 2-10 mm.

9. The self-laminating refrigeration system temperature equalization evaporator of claim 1, wherein the fins are not flush at both ends and are not equidistant from each other.

10. The self-cascade refrigeration system temperature-equalizing evaporator comprises an evaporator and is characterized by also comprising heat pipes, wherein each evaporator comprises fins and evaporation pipes, the evaporation pipes are spirally distributed in a snake shape and are clamped with the fins, and the heat pipes penetrate through the fins and are distributed in the fins in parallel to the evaporation pipes;

the heat pipes and the evaporation pipes are uniformly arranged in the fins, and a row of heat pipes is correspondingly arranged in one row of evaporation pipes; or a row of heat pipes is arranged between the two rows of evaporation pipes;

the evaporation tubes are formed by bending one or more pipelines in multiple ways, and each evaporation tube is parallel to each other and is arranged in multiple rows;

the evaporator adopts an air-cooled evaporator;

the evaporation tube adopts a copper tube;

a space is reserved between the heat pipe and the evaporation pipe;

the heat pipe is fixed by the fins layer by layer and conducts and radiates heat to the evaporation pipe through the fins;

one or more rows of evaporation tubes and one or more rows of heat tubes are arranged in the fins;

the heat pipes and the evaporation pipes are alternately distributed in the fins;

gaps among the fins are 2-10 mm;

the two ends of the fins are not parallel and level, and the distances between the fins are not equal.

Images