阅读说明：本技术 一种具有化霜的制冷换热管路组件及冷媒输送管 (Refrigeration heat exchange pipeline assembly with defrosting function and refrigerant conveying pipe ) 是由 刘易铭 于 2019-10-27 设计创作，主要内容包括：本发明公开了一种具有化霜的制冷换热管路组件,用于制冷换热技术领域,包括一个具有进口和一个出口的管路,所述管路的外圆周一体设有数个连续热交换翼片,还包括固定在管路上的电加热管。还公开了利用上述制冷管路换热结构制成的冷媒输送管；采用本发明结构实现了高效化霜,大大延长了化霜周期,提高了制冷效果。电加热管可去除翅片和管路外壁上的冰霜,减少蒸发器低温环境下使用时的除霜次数,保障蒸发器正常高效运行；对于制冷介质的有效利用率更高,提高了蒸发器运行效率,更加节能环保。(The invention discloses a refrigeration and heat exchange pipeline assembly with defrosting function, which is used for the technical field of refrigeration and heat exchange and comprises a pipeline with an inlet and an outlet, wherein a plurality of continuous heat exchange fins are integrally arranged on the outer circumference of the pipeline, and the refrigeration and heat exchange pipeline assembly also comprises an electric heating pipe fixed on the pipeline. Also discloses a refrigerant conveying pipe made by the refrigeration pipeline heat exchange structure; by adopting the structure of the invention, high-efficiency defrosting is realized, the defrosting period is greatly prolonged, and the refrigerating effect is improved. The electric heating pipe can remove frost on the fins and the outer wall of the pipeline, reduce the defrosting times of the evaporator when used in a low-temperature environment and ensure the normal and efficient operation of the evaporator; the effective utilization rate of the refrigeration medium is higher, the operation efficiency of the evaporator is improved, and the evaporator is more energy-saving and environment-friendly.)

1. The refrigerating and heat exchanging pipeline assembly with defrosting function includes one pipeline with inlet and outlet, several continuous heat exchanging fins set integrally on the outer circumference of the pipeline, and one electric heating pipe fixed onto the pipeline.

2. The refrigeration heat-exchange line assembly with defrosting of claim 1, wherein: the length direction of the heat exchange fins is consistent with the axial direction of the pipeline.

3. The refrigeration heat-exchange line assembly with defrosting of claim 2, wherein: the electric heating pipe is arranged between two adjacent heat exchange fins in an adhering mode and is adhered to the outer wall of the pipeline or the side face of each heat exchange fin through an adhesive.

4. The refrigeration heat-exchange line assembly with defrosting of claim 2, wherein: the heat exchange fins are provided with intervals along the length direction of the pipeline, the electric heating pipes are attached to the outer circumferential wall of the pipeline, and the electric heating pipes are bound to the outer circumference through fasteners at the intervals.

5. The refrigeration heat-exchange line assembly with defrosting of claim 1, wherein: and a clamping groove is integrally formed on the outer circumferential wall of the pipeline between two adjacent heat exchange fins, and the electric heating pipe is embedded in the clamping groove.

6. The refrigeration heat-exchange line assembly with defrosting of claim 1, wherein: one of the heat exchange fins is bent towards the center direction of the pipeline along the outer wall of the electric heating pipe to wrap the electric heating pipe inside.

7. The refrigeration heat-exchange line assembly with defrosting of claim 1 or 5, wherein: the plurality of heat exchange fins are continuous heat exchange fins in a spiral structure; the electric heating tube is coiled on the outer wall of the pipeline along the spiral direction of the heat exchange fins.

8. The refrigeration heat-exchange line assembly with defrosting of claim 1, wherein: an electric heating wire penetrating pipe is integrally arranged on the outer circumferential wall of the pipeline between the two adjacent heat exchange fins, an electric heating wire penetrates through the electric heating wire penetrating pipe, and the electric heating wire penetrating pipe form the electric heating pipe.

9. A refrigerant conveying pipe with defrosting function comprises a refrigerant conveying pipeline with an inlet and an outlet; the method is characterized in that: the refrigeration and heat exchange pipeline assembly as claimed in claims 1 to 8 is sleeved on the refrigerant conveying pipeline at intervals.

10. A refrigerant delivery pipe with defrosting function comprises a continuous pipeline with an inlet and an outlet and with bending property; the method is characterized in that: the continuous pipeline is wound by the refrigeration and heat exchange pipeline assembly of the claims 1 to 8.

Technical Field

The invention belongs to the technical field of refrigeration and defrosting, and particularly relates to a refrigeration and heat exchange pipeline assembly with defrosting function and a refrigerant conveying pipe.

Background

With the development of refrigeration technology, frost-free refrigerators are more and more popular, the frost-free refrigerators in the current market are all refrigerators generally adopting an air cooling design, the principle of the air cooling refrigerator is that air is utilized for refrigeration, when high-temperature air flows through a built-in evaporator (separated from the inner wall of the refrigerator), the high-temperature air and the built-in evaporator directly exchange heat, the temperature of the air is reduced, and meanwhile, cold air is blown into the refrigerator; the air-cooled refrigerator reduces the temperature of the refrigerator through the way that the cold air is continuously circulated in the refrigerator.

It is known that water vapor is always present in the air and the food stored in the refrigerator contains moisture which is always condensed as the temperature inside the refrigerator decreases, and the moisture is condensed into frost to be attached to the evaporator. Those skilled in the art will appreciate that frosting, once it occurs, results in a reduction in quality; therefore, in order to improve the refrigeration effect of the refrigerator, defrosting treatment is required; at present, the mainstream defrosting technology is to remove the frost by thermal evaporation, that is, after the refrigerator works for a period of time (generally about 8 hours), the refrigerator stops refrigerating, and a defrosting heating system is started; the condensed frost is heated and turned into water, and then discharged (or directly evaporated into water vapor) through a special conduit.

Defrosting and heating of the air-cooled refrigerator are completed by defrosting heating wires, frost is mainly condensed on fins and pipelines of the air-cooled evaporator, and the defrosting can be completed by heating the defrosting heating wires. The current installation modes of the defrosting heating wire are mainly divided into two categories: firstly, an aluminum pipe heating wire is arranged in an aluminum pipe in a penetrating way, and then the aluminum pipe heating wire is coiled into an S shape and clamped in a groove prefabricated by an evaporator fin, and the existing refrigerating pipe and the evaporator fin are installed in a split way; and fixing the steel pipe heating wire and the quartz pipe heating wire at the bottom of the evaporator, and defrosting by a heat radiation mode. The two defrosting modes have advantages and disadvantages respectively, the aluminum pipe type heating wire can be contacted with the tail end of the fin, but the aluminum pipe type heating wire is far away from the pipeline, the heat of the joint part of the fin and the pipeline is relatively low, and the defrosting period is long; the second method directly depends on radiation heating, and the heat loss is larger. Both the two modes can not fully utilize the heat energy of the defrosting heating wire to quickly defrost.

In addition, in the process of conveying media by a refrigerant pipeline, for example, in the process of conveying liquid nitrogen, the temperature around the pipeline is reduced due to vaporization and heat absorption of the liquid nitrogen, so that a large amount of frost is formed on the surface of the pipeline, and particularly when the ambient temperature is low, the icing phenomenon is more serious, and the vaporization effect is influenced. At the moment, the pipelines need to be defrosted, the most ideal defrosting mode is to directly heat the pipelines and fins, the existing mode generally carries out local defrosting through a hot air blower, and the defrosting mode has the defects of high energy consumption, poor defrosting effect and the like.

Therefore, the refrigeration heat exchange pipeline assembly is easy to frost, and the root part of the refrigeration heat exchange pipeline assembly is in direct contact with or is far away from the refrigeration heat exchange pipeline assembly to exchange heat so as to realize efficient defrosting.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a defrosting refrigeration heat exchange pipeline assembly and a refrigerant conveying pipe, wherein a defrosting heating component is in direct contact with or is in a distance with an evaporator pipeline or a fin at the root part which is easy to frost for heat exchange, and efficient defrosting is realized.

The invention is realized in such a way that the refrigeration heat exchange pipeline component with defrosting is characterized by comprising a pipeline with an inlet and an outlet, a plurality of continuous heat exchange fins are integrally arranged on the outer circumference of the pipeline, and an electric heating pipe fixed on the pipeline.

Preferably, in the above technical solution, the length direction of the heat exchange fin is consistent with the axial direction of the pipeline.

Preferably, in the above technical solution, the electric heating tube is adhered between two adjacent heat exchange fins and adhered to the outer wall of the pipeline or the side surface of the heat exchange fin by an adhesive.

According to the technical scheme, the heat exchange fins are provided with intervals along the length direction of the pipeline, the electric heating pipes are attached to the outer circumferential wall of the pipeline, and the electric heating pipes are bound to the outer circumference through fasteners at the intervals.

According to the preferable technical scheme, clamping grooves are integrally formed in the outer circumferential wall of the pipeline between every two adjacent heat exchange fins, and the electric heating pipes are embedded in the clamping grooves.

Preferably, one of the heat exchange fins is bent towards the center of the pipeline along the outer wall of the electric heating pipe, so as to wrap the electric heating pipe. The outer wall and other fins are on the same circumference;

preferably, in the above technical scheme, the plurality of heat exchange fins are heat exchange fins which are continuously in a spiral structure; the electric heating tube is coiled on the outer wall of the pipeline along the spiral direction of the heat exchange fins.

According to the technical scheme, the electric heating pipe is preferably formed by integrally arranging the electric heating wire penetrating pipe on the outer circumferential wall of the pipeline between the two adjacent heat exchange fins, and the electric heating wire penetrates through the electric heating wire penetrating pipe.

Preferably, in the technical scheme, the refrigerant conveying pipe with the defrosting function comprises a refrigerant conveying pipeline with an inlet and an outlet; the refrigerating and heat-exchanging pipeline assembly with defrosting function is sleeved on the refrigerant conveying pipeline at intervals.

Preferably, in the above technical solution, a refrigerant delivery pipe with a defrosting function includes a continuous pipe having an inlet and an outlet and having a bending characteristic; the continuous pipeline is continuously formed by winding the refrigeration heat exchange pipeline assembly with defrosting function.

The invention has the advantages and technical effects that: according to the technical scheme, the refrigeration heat exchange pipeline assembly with defrosting function is provided with the aluminum pipeline with the inlet and the outlet and the plurality of continuous heat exchange fins which are integrally formed by the pull handle, so that the heat dissipation area is increased, low-temperature media which just enter the evaporator exchange heat with the environment through the coil pipe and the heat exchange fins, and the refrigeration effect is improved; the integrally formed structure is stable, and the heat conduction efficiency is high; the evaporator radiating fins do not need to be assembled secondarily in the later period when the evaporator is actually wound, and the assembling efficiency is improved; the refrigeration heat exchange pipeline assembly with defrosting function further comprises an electric heating pipe fixed on the pipeline, the electric heating pipe is fixed on the evaporator pipeline or the fins are in direct contact with roots prone to frosting or are in heat exchange at a distance, after the defrosting function is started, the whole temperature rises relatively fast, and the probability of icing caused by low bottom evaporation temperature of condensed water left to the bottoms of the fins and a condensed water tray along the fins is reduced. By adopting the structure of the invention, high-efficiency defrosting is realized, the defrosting period is greatly prolonged, and the refrigerating effect is improved. The electric heating pipe can remove frost on the fins and the outer wall of the pipeline, reduce the defrosting times of the evaporator when used in a low-temperature environment and ensure the normal and efficient operation of the evaporator; the effective utilization rate of the refrigeration medium is higher, the operation efficiency of the evaporator is improved, and the evaporator is more energy-saving and environment-friendly.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic perspective view of the structure of example 1;

FIG. 3 is a schematic structural view of example 2;

FIG. 4 is a schematic structural view of example 3;

FIG. 5 is a schematic structural view of example 4;

FIG. 6 is a schematic structural view of example 5;

FIG. 7 is a side view of embodiment 5;

FIG. 8 is a schematic perspective view of FIG. 5;

FIG. 9 is a schematic view of a piping structure according to embodiment 6;

FIG. 10 is a schematic structural view of example 6;

FIG. 11 is a schematic perspective view of the preferred embodiment 6;

FIG. 12 is a schematic structural view of a half-wrapped state of an electric heating tube according to embodiment 6;

FIG. 13 is a schematic structural view of example 7;

FIG. 14 is a schematic perspective view of the preferred embodiment 7;

FIG. 15 is a schematic structural view of example 8;

FIG. 16 is a schematic view of a helical lacing configuration;

FIG. 17 is a schematic view of a spiral wrap configuration;

FIG. 18 is a schematic view of a spiral single-piece heat exchange fin pack configuration;

FIG. 19 is a schematic structural view of example 9;

FIG. 20 is a schematic structural view of application example 1;

fig. 21 is a schematic structural view of application example 2.

In the figure, 1, a pipeline; 1-1, a clamping groove; 1-3, passing an electric heating wire through a pipe; 2. a heat exchange fin; 2-1, interval; 3. an electric heating tube; 4. a U-shaped fastener;

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The refrigerating and heat exchanging pipeline assembly with defrosting function includes one pipeline with inlet and outlet, several continuous heat exchanging fins set integrally on the outer circumference of the pipeline, and electric heating pipe fixed onto the pipeline. The pipeline and the heat exchange fins are preferably made of aluminum with good heat dissipation performance and good ductility; according to the technical scheme, the refrigeration heat exchange pipeline assembly with defrosting function is provided with the aluminum pipeline with the inlet and the outlet and the plurality of continuous heat exchange fins which are integrally formed by the pull handle, so that the heat dissipation area is increased, low-temperature media which just enter the evaporator exchange heat with the environment through the coil pipe and the heat exchange fins, and the refrigeration effect is improved; the integrally formed structure is stable, and the heat conduction efficiency is high; the evaporator radiating fins do not need to be assembled secondarily in the later period when the evaporator is actually wound, and the assembling efficiency is improved; the refrigeration heat exchange pipeline component with defrosting function further comprises an electric heating pipe fixed on the pipeline, wherein the electric heating pipe is fixed on the pipeline of the evaporator or the fins are in direct contact with the root part which is easy to frost or is in heat exchange with the root part which is easy to frost, and then heat is transferred to the whole evaporator through the pipeline and the fins; after the defrosting function is started, the whole temperature rises relatively quickly, and the probability of icing of condensate water which is remained to the bottoms of the fins and a condensate water tray along the fins is reduced due to low bottom evaporation temperature. By adopting the structure of the invention, high-efficiency defrosting is realized, the defrosting period is greatly prolonged, and the refrigerating effect is improved. The electric heating pipe can remove frost on the fins and the outer wall of the pipeline, reduce the defrosting times of the evaporator when used in a low-temperature environment and ensure the normal and efficient operation of the evaporator; the effective utilization rate of the refrigeration medium is higher, the operation efficiency of the evaporator is improved, and the evaporator is more energy-saving and environment-friendly.

The following examples are given according to the scenario of the application, the processing capacity of the equipment produced and the diversification of the products: