CN218237915U

CN218237915U - V-shaped dual-system evaporator

Info

Publication number: CN218237915U
Application number: CN202222416316.1U
Authority: CN
Inventors: 许赛; 孙明迪; 周进
Original assignee: Nanjing Canatal Data Centre Environmental Tech Co Ltd
Current assignee: Nanjing Canatal Data Centre Environmental Tech Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-01-06
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses a V type dual system evaporimeter, include the compressor and the condenser of being connected with the evaporimeter, the evaporimeter is "V" type structure, the upper portion and the lower part of evaporimeter are provided with evaporation one and two portions of evaporation respectively, evaporation one and two parallel connection formation evaporation pipeline of evaporation, evaporation pipeline, compressor and condenser are connected gradually to the exit end of evaporimeter, the exit end of condenser is connected the import end of evaporimeter and is formed refrigeration cycle, the beneficial effects of the utility model: through setting up two upper and lower evaporation lines, can be according to the different automatic control valve's of air flow rate size that opens and shuts for the superheat degree of each branch road is even, and system efficiency is higher, and the structure need not to change by a wide margin, realizes that the degree of difficulty is less.

Description

V-shaped dual-system evaporator

Technical Field

The utility model relates to a computer lab air conditioner evaporimeter technical field specifically is a V type dual system evaporimeter.

Background

Most of the existing V-shaped dual-system evaporators adopt an arrangement form that the left side and the right side are independent systems, and expansion valves respectively detect the superheat degree of outlets of respective systems so as to adjust the flow of refrigerants. However, the evaporator with the V-shaped structure has the characteristic of uneven head-on wind speed, the wind speed is higher at the position closer to the fan, and is lower on the contrary, and meanwhile, the refrigerant is uniformly distributed in each branch, so that the superheat degree of an outlet of the top branch is larger, the superheat degree of an outlet of the bottom branch is smaller, even the evaporation is incomplete, the liquid return is caused, and finally the overall efficiency and reliability of the evaporator are reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a V type dual system evaporimeter to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a V type dual system evaporimeter, includes compressor, expansion valve and the condenser of being connected with the evaporimeter, the evaporimeter is "V" type structure, the upper portion and the lower part of evaporimeter are provided with evaporation one and evaporation two respectively, evaporation one and evaporation two parallel connection of portion form the evaporation pipeline, the knockout entrance point of evaporation one and evaporation two is provided with the expansion valve respectively, the exit end of evaporimeter connects gradually compressor, condenser and expansion valve, the exit end of expansion valve connects the entrance end of evaporimeter and forms refrigeration cycle.

Further, the first part of evaporation and the second part of evaporation all include the knockout, divide liquid capillary and return-air house steward, the inside of evaporimeter is provided with the heat exchange tube, the exit end of knockout connects gradually divide liquid capillary, heat exchange tube and return-air house steward, the entrance point of compressor is connected to the exit end of return-air house steward.

Furthermore, the air return main pipe comprises two branch pipes laid along the oblique edge of the evaporator and a main pipe connecting the two branch pipes.

Further, a fan is arranged above or below the evaporator.

Further, the evaporator is a finned tube heat exchanger or a micro-channel heat exchanger.

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

under the conditions of not changing the structure of the heat exchanger greatly and increasing the cost, only changing the arrangement mode of the evaporation parts to ensure that the same evaporation part is at a relatively close wind speed and the consistency of the superheat degree of the outlet of each refrigerant loop is ensured, thereby realizing the improvement of the efficiency and the reliability of the evaporator;

the size of the valve opening can be automatically controlled according to different superheat degrees of the return air main pipe of the system by arranging the two expansion valves, so that the superheat degrees of all branches are uniform, and the system efficiency is higher.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a conventional evaporator;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of the connection of the tube in the refrigeration system according to the present invention.

In the figure: 1. an evaporator; 2. a compressor; 3. a condenser; 4. evaporating one part; 5. evaporating the second part; 6. a liquid separator; 7. a liquid separating capillary tube; 8. a main air return pipe; 9. an expansion valve; 10. a fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 2-3, in an embodiment of the present invention, a V-type dual-system evaporator includes a compressor 2 connected to an evaporator 1, a condenser 3, and an evaporation first portion 4 and an evaporation second portion 5 disposed on the evaporator 1, the evaporator 1 is of a "V" type structure, inlet ends of liquid distributors 6 of the evaporation first portion 4 and the evaporation second portion 5 are respectively provided with an expansion valve 9, the evaporation first portion 4 is disposed on the upper half portion of the evaporator 1, the evaporation second portion 5 is disposed on the lower half portion of the evaporator 1, the evaporation first portion 4 and the evaporation second portion 5 have the same structure, an outlet end of the expansion valve 3 is respectively connected to inlet ends of the evaporation first portion 4 and the evaporation second portion 5 through a three-way pipe, an inlet end of the condenser 3 is connected to an outlet end of the compressor 2, and an inlet end of the compressor 2 is respectively connected to outlet ends of the evaporation first portion 4 and the evaporation second portion 5 through a three-way pipe.

The embodiment is as follows:

the first evaporation part 4 and the second evaporation part 5 respectively comprise a liquid separator 6, liquid separating capillaries 7 and an air return header pipe 8, a heat exchange pipe connected with the liquid separating capillaries 7 and the air return header pipe 8 is arranged in the evaporator 1, the inlet end of the liquid separator 6 is the inlet end of the first evaporation part 4 or the second evaporation part 5, the outlet end of the liquid separator 6 is connected with the inlet ends of a plurality of liquid separating capillaries 7 in a shunting manner, the outlet end of the liquid separating capillaries 7 is connected with the inlet end of the heat exchange pipe, the outlet end of the heat exchange pipe is connected with the inlet end of the air return header pipe 8, and the outlet end of the air return header pipe 8 is connected with the inlet end of the compressor 2; the refrigerant flowing out of the condenser 3 is throttled and depressurized by an expansion valve, then is uniformly distributed by a distributor 6, is distributed into a plurality of liquid distributing capillary tubes 7, then flows into the heat exchange tubes in the evaporator 1 for heat exchange, finally flows out of the air return header pipe 8, medium-temperature steam flowing out of the air return header pipe 8 is compressed into high-temperature high-pressure refrigerant steam after passing through a compressor, and then enters the condenser again, and the process is circulated.

It should be noted that the return air main 8 includes two branch pipes laid along the oblique side of the evaporator 1 and a main pipe connecting the two branch pipes, and the return air main 8 is arranged horizontally.

It should be noted that the water inlets of the liquid separators 6 of the first evaporation part 4 and the second evaporation part 5 are respectively provided with an expansion valve 9, and the expansion valve 9 can throttle and depressurize the refrigerant coming out of the condenser 3 to control the flow of the refrigerant entering the evaporator.

It is worth noting that a fan 10 is arranged above the evaporator 1, the heat dissipation effect of the device is further improved by additionally arranging a fan l0, and the evaporator 1 is a fin tube type heat exchanger or a micro-channel heat exchanger.

As shown in fig. 2, it is worth noting that the two-phase refrigerant enters the V-shaped dual-system evaporator 1 from the condenser 3 through the expansion valve 9, because the air flow rate at the upper part of the V-shaped evaporator 1 is higher, the expansion valve I detects that the superheat degree of the outlet is larger, the valve opening degree is automatically increased, and the superheat degree is stabilized in the target range, because the air flow rate at the lower part of the V-shaped evaporator 1 is lower, the expansion valve II detects that the superheat degree of the outlet is smaller, the valve opening degree is automatically decreased, the superheat degree is stabilized in the target range, the refrigerant vapor with the same superheat degree of the two systems is merged, enters the compressor 2 to increase the temperature and the pressure, is liquefied and releases heat in the condenser, enters the expansion valve 9, and the cycle is repeated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a V type dual system evaporimeter, includes compressor (2), expansion valve (9) and condenser (3) be connected with evaporimeter (1), its characterized in that: evaporimeter (1) is "V" type structure, the upper portion and the lower part of evaporimeter (1) are provided with evaporation one (4) and two (5) of evaporation respectively, evaporation one (4) and two (5) parallel connection formation evaporation pipeline of evaporation, the knockout (6) entrance point of evaporation one (4) and two (5) of evaporation is provided with expansion valve (9) respectively, the exit end of evaporimeter (1) connects gradually compressor (2), condenser (3) and expansion valve (9), the entrance point of evaporimeter (1) is connected to the exit end of expansion valve (9) forms refrigeration cycle.

2. A V-type dual system evaporator according to claim 1 wherein: the evaporator comprises a first evaporation part (4) and a second evaporation part (5) which respectively comprise a liquid separator (6), a liquid separating capillary tube (7) and an air return header pipe (8), wherein a heat exchange tube is arranged inside the evaporator (1), the outlet end of the liquid separator (6) is sequentially connected with the liquid separating capillary tube (7), the heat exchange tube and the air return header pipe (8), and the outlet end of the air return header pipe (8) is connected with the inlet end of a compressor (2).

3. A V-type dual-system evaporator according to claim 2, wherein: the air return main pipe (8) comprises two branch pipes laid along the oblique side of the evaporator (1) and a main pipe connected with the two branch pipes.

4. A V-type dual system evaporator according to claim 1 wherein: and a fan (10) is arranged above or below the evaporator (1).

5. A V-type dual system evaporator according to claim 1 wherein: the evaporator (1) is a finned tube heat exchanger or a micro-channel heat exchanger.