CN215638140U - Modularization center refrigeration evaporator and refrigeration equipment - Google Patents

Abstract

The utility model relates to the technology of refrigeration equipment, in particular to a modular central refrigeration evaporator which comprises refrigerant pipes, wherein the refrigerant pipes are arranged on a goods shelf to form evaporator unit modules, and at least one evaporator unit module is arranged in the middle of a storage space; the evaporator unit modules are connected in parallel, and a liquid inlet pipeline and a refrigerant recovery pipeline of the evaporator unit are arranged at the top of the storage space. The utility model changes the position of the heat exchange refrigerant pipe from the position close to the inner wall of the storage space to the position mainly adopting a middle heat exchange mode, so that the cold quantity is relatively uniformly distributed, and the cold quantity loss caused by the close to the wall is reduced; the modular evaporator makes refrigerant pipe and goods shelves combine together, can adjust the pressure value of different modules, can make cold volume distribution more even in the condition that the resistance is different, improves holistic refrigeration effect.

Description

Modularization center refrigeration evaporator and refrigeration equipment

Technical Field

The utility model relates to a refrigeration technology, in particular to a modular central refrigeration evaporator and refrigeration equipment.

Background

The evaporator is one of the main components of a refrigeration apparatus, and functions to absorb heat from an object or space to be cooled through the evaporator, thereby performing refrigeration. In order to save space, the evaporator is generally disposed at one side or around the object storage space. For small-space refrigeration equipment such as a refrigerator, cold energy brought by an evaporator can be quickly transmitted to a cold storage or freezing space, and the temperature distribution is uniform.

For large refrigeration spaces such as a refrigeration house, air is slow in heat conduction, cold quantity is not uniformly diffused, cooled stored objects are good in refrigeration effect at positions close to walls, the refrigeration effect at the middle of the refrigeration house is relatively poor, and the cold quantity is not uniformly distributed. On the other hand, because the heat-insulating material can not absolutely insulate heat, the cold is more easily dissipated when the evaporator is near the wall.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a modular central refrigeration evaporator, which improves the heat exchange performance of the evaporator on the premise of occupying approximately the same space size, and the specific scheme is as follows.

A modular center refrigeration evaporator comprises refrigerant pipes, wherein the refrigerant pipes are arranged on a shelf to form evaporator unit modules, and at least one evaporator unit module is arranged in the middle of a storage space; the evaporator unit modules are connected in parallel, and a liquid inlet pipeline and a refrigerant recovery pipeline of the evaporator unit are arranged at the top of the storage space. Because the position of the refrigerant pipe is mainly in a mode of heat exchange near the middle part or avoiding being close to the periphery, the cold quantity distribution is relatively uniform, and the cold quantity loss caused by being close to the wall is reduced.

In a further improvement, the refrigerant pipe of each evaporator unit is provided with an expansion valve, and the main pipeline before each expansion valve is provided with a liquid distributor.

In a further improvement, a gas distributor is arranged on a main pipeline behind the outlet of the refrigerant pipe of each evaporator unit, and an electronic barometer is arranged on a branch pipeline behind the outlet of the refrigerant pipe of each evaporator unit.

In a further refinement, the evaporator unit module refrigerant tubes are serpentine in arrangement on the shelf.

In a further improvement, the gas distributor comprises a main valve, and the main valve is connected with a plurality of branch valves which are arranged in parallel. The pressure difference and thus the flow power can be influenced by adjusting the opening of the branch valve, and the flow rate can be influenced

In a further improvement, the refrigerant pipe is a copper pipe or a stainless steel pipe.

In a further improvement, a liquid flow divider is arranged between the liquid inlet pipe of the refrigerant pipe and the expansion valve.

The utility model also provides refrigeration equipment which comprises the modular central refrigeration evaporator, so that the refrigeration capacity is more uniformly distributed in the storage space.

Compared with the prior art, the utility model has the beneficial effects that:

(1) the utility model changes the position of the heat exchange refrigerant pipe from the position close to the inner wall of the storage space to the position mainly adopting a middle heat exchange mode, so that the cold quantity distribution is relatively uniform, and the cold quantity loss caused by the close to the wall is reduced.

(2) The modular evaporator makes refrigerant pipe and goods shelves combine together, can adjust the pressure value of different modules, can make cold volume distribution more even in the condition that the resistance is different, improves holistic refrigeration effect.

(3) The liquid inlet pipeline and the refrigerant recovery pipeline of the evaporator unit are arranged at the top of the storage space, so that the interference with a travelling path of a trolley in the warehouse is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application, and in which:

FIG. 1 is a perspective view of an evaporator unit module of a modular center refrigeration evaporator provided in accordance with the present invention;

FIG. 2 is a modular front elevation view of an evaporator unit of the modular center refrigeration evaporator provided in accordance with the present invention;

FIG. 3 is a schematic view of the connection of the modular central refrigeration evaporator according to the present invention;

fig. 4 is a schematic diagram of a modular center refrigeration evaporator gas distributor configuration provided by the present invention.

In the figure, the position of the upper end of the main shaft,

1. an evaporator unit module; 11. a refrigerant pipe; 12. a shelf; 13. a refrigerant inlet; 14. a refrigerant outlet; 21. a liquid inlet main pipeline; 22. a liquid inlet branch pipeline; 3. a liquid dispenser; 44. a refrigerant recovery branch pipe; 45. a refrigerant recovery main pipe; 5. a gas distributor; 51. a main valve; 52. and a branch valve.

Detailed Description

Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.

Example 1

A first embodiment of the utility model provides a modular center refrigeration evaporator including an evaporator unit module. The following is a description of the construction of the single core, evaporator unit module.

As shown in fig. 1-2, the main structure of the evaporator unit module 1 is a refrigerant tube 11 on a shelf 12. The goods shelves have whippletree and montant, and the refrigerant pipe setting passes through the clamp with the goods shelves and fixes at the vertical plane at montant place. The refrigerant pipe 11 is arranged in a serpentine shape on the shelf, and the refrigerant inlet 13 and the refrigerant outlet 14 of the refrigerant pipe 11 are arranged on the same side of the shelf, which is beneficial to the concentration of the pipeline.

The refrigerant inlet 13 is connected to the inlet manifold and the refrigerant outlet 14 is connected to the refrigerant recovery manifold. In order to increase the heat exchange effect, the refrigerant pipe may be provided with a fin.

The evaporator unit module 1 is used as a basic unit to describe the overall structure of the evaporator.

As shown in fig. 3, the modular center refrigeration evaporator comprises at least one evaporator unit module 1, the evaporator unit modules 1, at least one of the evaporator unit modules being disposed at a central position of the storage space. Three evaporator units are shown in parallel. It is also possible to provide only the central evaporator unit.

The heat exchange position of the evaporator is changed into a mode of mainly exchanging heat in the middle from the inner wall close to the storage space, so that the cold quantity is relatively uniformly distributed, and the loss of the cold quantity caused by the close of the evaporator to the wall 2 is reduced. And the modularized evaporator enables the refrigerant pipe to be combined with the goods shelf, so that the cold quantity is more uniformly distributed, and the integral refrigeration effect is improved.

For a refrigerating space with a large space, such as a refrigeration house, the transport trolley needs to be capable of walking on the ground, and therefore the liquid inlet pipeline and the refrigerant recovery pipeline of the evaporator unit are arranged at the top of the storage space, and interference with a travelling path of the trolley in the refrigeration house is avoided.

The liquid inlet pipeline is provided with a liquid inlet main pipeline 21, the liquid inlet main pipeline 21 is connected with a liquid inlet branch pipeline 22, the liquid main pipeline 21 is provided with a liquid distributor 3, and the refrigerant is uniformly distributed to the liquid inlet branch pipeline 22, so that the flow of the refrigerant circulating in each evaporator unit module 1 is uniform as much as possible. Wherein, each liquid inlet branch pipeline is provided with a flow meter. The refrigerant outlet 14 is connected to a refrigerant recovery branch pipe 44, and the refrigerant recovery branch pipe 44 is connected to a refrigerant recovery main pipe 45. Wherein, the refrigerant recovery branch pipe is provided with a barometer.

Because each evaporator unit module 1 uses one compressor, the distances from each evaporator unit module 1 to the compressors are different, the generated resistance is also different, and the evaporator unit modules absorb different heat, so that the refrigeration is not uniform. For this reason, the gas distributor 5 is provided between the refrigerant recovery branch pipe 44 and the refrigerant recovery main pipe 45.

As shown in fig. 4, the gas distributor 5 is constructed such that a main valve 51 is connected to a plurality of branch valves 52 arranged in parallel, and the opening degree of the branch valves 52 is controlled to adjust the gas pressure, thereby controlling the refrigerant flow rate of the evaporator unit modules in the branch circuits. The power for the refrigerant flow in the refrigerant recovery branch in the evaporator is provided by the compressor and the opening of the branch valve 52 affects the pressure differential and thus the power of the flow, which affects the flow rate. For example, for a branch with an evaporator unit module farther from the compressor, the opening of the branch valve of the branch can be increased.

When the evaporator unit module is used, the valves of the branch valves 51 can be adjusted to be approximately opened according to calculation in advance, and after the operation is carried out for a period of time, the branch valves are adjusted according to data of a flow meter and a pressure gauge, so that the flow of the evaporator unit modules is approximately equal.

This example provides modularization center refrigeration evaporator, changes the distribution form of refrigerant pipe from being close to the wall and sets up in the position that storage space is close to the middle part relatively to will combine together with the goods shelves and set up, add gas distributor, alleviate the inhomogeneous condition of cold volume distribution, and reduced the loss of cold volume.

Example 2

A second embodiment of the utility model provides a refrigeration appliance comprising the modular center refrigeration evaporator described in embodiment 1. The refrigerating equipment can ensure that the cold quantity is more uniformly distributed in the storage space.

It is noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (8)

1. A modular central refrigeration evaporator comprising refrigerant tubes, characterized in that,

the refrigerant pipe is arranged on the goods shelf to form evaporator unit modules, and at least one evaporator unit module is arranged in the middle of the storage space;

the evaporator unit modules are connected in parallel, and a liquid inlet pipeline and a refrigerant recovery pipeline of the evaporator unit are arranged at the top of the storage space.

2. A modular center refrigerated evaporator as recited in claim 1 wherein the refrigerant tube of each of said evaporator units is provided with an expansion valve and the main conduit before each expansion valve is provided with a liquid distributor.

3. A modular center refrigerated evaporator as recited in claim 2 wherein the main line after the refrigerant tube outlet of each evaporator unit is provided with a gas distributor and the branch line after the refrigerant tube outlet of said evaporator unit is provided with an electronic gas pressure gauge.

4. A modular center refrigeration evaporator of claim 2 wherein said evaporator unit module refrigerant tubes are serpentine in arrangement on a shelf.

5. A modular center refrigerated evaporator as recited in claim 3 wherein said air distributor includes a main valve connecting a plurality of branch valves in parallel.

6. The modular center refrigeration evaporator of claim 5, wherein the refrigerant tube is a copper tube or a stainless steel tube.

7. The modular center refrigeration evaporator of claim 6, wherein a liquid flow splitter is disposed between the refrigerant line feed and the expansion valve.

8. A refrigeration appliance comprising a modular center refrigeration evaporator according to any of claims 1-6.

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