CN211854528U

CN211854528U - Heat exchanger and refrigerating system

Info

Publication number: CN211854528U
Application number: CN201922221966.9U
Authority: CN
Inventors: 苏秀娇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-11-03
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a belong to refrigerating system technical field, specifically be a heat exchanger and refrigerating system, including casing and finned tube heat exchanger, the top and the bottom of casing are provided with first import pipe and first outlet pipe respectively, casing inner chamber central point puts and is provided with finned tube heat exchanger, second import pipe and second outlet pipe are installed respectively to finned tube heat exchanger's the left and right sides both ends, second import pipe and second outlet pipe run through the casing and are located the casing outside, and this heat exchanger can cool off the refrigerant, reaches the subcooling, improves the purpose of refrigerating capacity, also can improve refrigerating system's heat exchange efficiency simultaneously, and the heat exchanger can play the effect of reservoir simultaneously, can store refrigerating system's unnecessary refrigerant.

Description

Heat exchanger and refrigerating system

Technical Field

The utility model relates to a refrigerating system technical field specifically is a heat exchanger and refrigerating system.

Background

The refrigerant is heat-dissipated in the condenser by high-temperature gas compressed by the compressor to become normal-temperature liquid, is reduced in pressure from the outlet of the condenser through the throttling device to become low-temperature gas-liquid two-phase refrigerant, absorbs heat in the evaporator to be evaporated into gas refrigerant, and is sucked by the compressor to be compressed to enter the next cycle.

If the refrigeration effect is required to be improved and the energy is required to be saved, the refrigerant in the condenser is required to be further cooled into a supercooled liquid; the temperature of the refrigerant from the evaporator is low, and the refrigerant at the outlet of the condenser can be cooled by the refrigerant, so that the refrigerant at the outlet of the condenser is further cooled into a supercooled liquid to improve the refrigeration effect, and a heat exchanger is needed at this time.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of current refrigerating system can not cool off the refrigerant, can not improve refrigerating capacity, also can not improve refrigerating system's heat exchange efficiency simultaneously, also can not reach the effect of reservoir, can not store refrigerating system's unnecessary refrigerant's problem, has proposed the utility model discloses a refrigerant can not be cooled off to the refrigerant.

Therefore, the utility model aims at providing a heat exchanger and refrigerating system can cool off the refrigerant, reaches the subcooling, improves the purpose of refrigerating capacity, also can improve refrigerating system's heat exchange efficiency simultaneously, and the heat exchanger can play the effect of reservoir simultaneously, can store refrigerating system's unnecessary refrigerant.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

the heat exchanger comprises a shell and a finned tube heat exchanger, wherein a first inlet pipe and a first outlet pipe are respectively arranged at the top and the bottom of the shell, the finned tube heat exchanger is arranged at the central position of an inner cavity of the shell, a second inlet pipe and a second outlet pipe are respectively arranged at the left end and the right end of the finned tube heat exchanger, and the second inlet pipe and the second outlet pipe penetrate through the shell and are positioned outside the shell.

As a preferred scheme of a heat exchanger, wherein: the outer side wall of the shell is coated with a heat insulation layer, and the shell can be round or square.

As a preferred scheme of a heat exchanger, wherein: the finned tube heat exchanger comprises a plurality of fins and circulating tubes, wherein the circulating tubes can be round tubes, oval tubes or flat tubes.

As a preferred scheme of a heat exchanger, wherein: the finned tube heat exchanger is provided with a plurality of fins, the fins are arranged on the periphery of the circulating tube and are in close contact with the circulating tube, and the fins can be tightly connected by using an expansion or welding process.

The utility model provides a refrigerating system, includes the heat exchanger, connecting pipe, compressor, condenser, throttling arrangement and evaporimeter, the first outlet pipe of heat exchanger passes through the connecting pipe and connects the compressor, the condenser is connected through the connecting pipe in one side of finned tube heat exchanger, and the throttling arrangement is connected through the connecting pipe to the opposite side, throttling arrangement passes through the connecting pipe and connects the evaporimeter, the first import pipe of heat exchanger is connected through the connecting pipe to the opposite side of evaporimeter.

Compared with the prior art: through finned tube heat exchanger, thereby can increase substantially the heat transfer volume that heat transfer area improved two kinds of fluid, by heat transfer volume computational formula Q ═ lambda A delta T, lambda is the heat transfer coefficient, and A is heat transfer area, and delta T is the heat transfer difference in temperature, can know under the unchangeable circumstances of other parameters, increases heat transfer area, can promote heat transfer volume, simple structure, and heat exchange efficiency is high, compact.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a schematic structural view of the present invention with a circular housing;

FIG. 2 is a schematic structural view of the housing of the present invention in a square shape;

fig. 3 is a schematic structural diagram of the refrigeration system of the present invention.

In the figure: the shell 100, the first inlet pipe 101, the first outlet pipe 102, the finned tube heat exchanger 200, the second inlet pipe 201, the second outlet pipe 202, the fins 203, the circulation pipe 204, the connection pipe 210, the compressor 220, the condenser 230, the throttling device 240, the evaporator 250 and the thermal insulation layer 300.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways than those specifically described herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in the detailed description of the embodiments of the present invention, for convenience of explanation, the sectional view showing the device structure will not be enlarged partially according to the general scale, and the schematic drawings are only examples, and should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides a heat exchanger and refrigerating system for can cool off the refrigerant, reach the subcooling, improve the purpose of refrigerating capacity, also can improve refrigerating system's heat exchange efficiency simultaneously, the heat exchanger can play the effect of reservoir simultaneously, can store refrigerating system's unnecessary refrigerant, please refer to fig. 1, including casing 100 and finned tube heat exchanger 200;

referring to fig. 1, the shell 100 has a first inlet pipe 101, a first outlet pipe 102 and a heat insulating layer 300, specifically, the first inlet pipe 101 and the first outlet pipe 102 are respectively connected to the top and the bottom of the shell 100, the heat insulating layer 300 covers the outer side wall of the shell 100, the shell 100 is used for heat insulation, the first inlet pipe 101 is used for feeding, the first outlet pipe 102 is used for discharging, and the heat insulating layer 300 is used for heat insulation;

referring to fig. 1, 2 and 3, the finned tube heat exchanger 200 has a heat exchanger having a second inlet pipe 201, a second outlet pipe 202, fins 203, a circulation pipe 204, a connection pipe 210, a compressor 220, a condenser 230, a throttling device 240 and an evaporator 250, the finned tube heat exchanger 200 is installed inside the casing 100, specifically, the finned tube heat exchanger 200 is fixedly installed inside the casing 100, the second inlet pipe 201 and the second outlet pipe 202 are respectively fixedly installed at both ends of the finned tube heat exchanger 200, the fins 203 are fixedly installed around the circulation pipe 204, the circulation pipe 204 is fixedly installed in the middle of the fins 203, the connection pipe 210 is fixedly installed at both left and right sides of the finned tube heat exchanger 200, the compressor 220 is connected with the finned tube heat exchanger 200 through the connection pipe 210, the condenser 230 is connected with the compressor 220 through the connection pipe 210, the throttling device 240 is, the evaporator 250 is connected with the throttling device 240 through the connecting pipe 210, the finned tube heat exchanger 200, the second inlet pipe 201, the second outlet pipe 202, the fins 203, the circulating pipe 204, the connecting pipe 210, the compressor 220, the condenser 230, the throttling device 240 and the evaporator 250 are used for forming a refrigerating system, and the refrigerant in the circulating pipe 204 is cooled by the low-temperature refrigerant at the outlet of the evaporator 250, so that the degree of supercooling of the cold coal in the system in front of the throttling device 240 is improved, and the refrigerating capacity is improved.

When the refrigeration system is used specifically, a person skilled in the art connects the second inlet pipe 201 of the finned tube heat exchanger 200 through the outlet of the condenser 230 of the refrigeration system, the second outlet pipe 202 of the finned tube heat exchanger 200 is connected with the throttling device 240, the other end of the evaporator 250 is connected with the first inlet pipe 101, the first outlet pipe 102 is connected with the inlet of the compressor 220, when the refrigeration system works, gaseous refrigerant in the refrigeration system is sucked by the compressor 220 to be compressed, becomes high-temperature and high-pressure refrigerant, enters the condenser 230 to release heat, the condensed refrigerant flows out from the outlet of the condenser 230 in a normal-temperature and high-pressure state, the temperature of the refrigerant is generally slightly higher than the ambient temperature, enters the finned tube heat exchanger 200 to exchange heat with low-temperature refrigerant in the shell 100 to be further cooled into supercooled liquid refrigerant, the larger the supercooled temperature of, the refrigerant absorbs the heat of the surrounding environment and is gasified into gaseous refrigerant, the temperature of the refrigerant does not change greatly and is still at low temperature as long as the refrigerant absorbs the heat through phase change, then the refrigerant enters the first inlet pipe 101 of the finned tube heat exchanger 200 and enters the shell 100, the refrigerant absorbs the heat of the refrigerant in the finned tube heat exchanger 200, then the temperature of the refrigerant is further raised, the refrigerant leaves through the first outlet pipe 102, and the refrigerant is sucked by the compressor 220 and enters the next cycle.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A heat exchanger, characterized by: the heat exchanger comprises a shell (100) and a finned tube heat exchanger (200), wherein a first inlet tube (101) and a first outlet tube (102) are respectively arranged at the top and the bottom of the shell (100), the finned tube heat exchanger (200) is arranged at the central position of an inner cavity of the shell (100), a second inlet tube (201) and a second outlet tube (202) are respectively arranged at the left end and the right end of the finned tube heat exchanger (200), and the second inlet tube (201) and the second outlet tube (202) penetrate through the shell (100) and are located on the outer side of the shell (100).

2. A heat exchanger according to claim 1, wherein: the outer side wall of the shell (100) is coated with the heat insulation layer (300), and the shell (100) can be round or square.

3. A heat exchanger according to claim 1, wherein: the finned tube heat exchanger (200) comprises a plurality of fins (203) and a circulating tube (204), and the circulating tube (204) can be a circular tube, an elliptical tube or a flat tube.

4. A heat exchanger according to claim 1, wherein: the finned tube heat exchanger (200) is provided with a plurality of fins (203), the fins (203) are arranged on the periphery of the circulating tube (204), and the fins (203) are tightly contacted with the circulating tube (204) and can be tightly connected by using an expansion or welding process.

5. A refrigeration system, characterized by: the heat exchanger of claim 1, comprising a connecting pipe (210), a compressor (220), a condenser (230), a throttling device (240) and an evaporator (250), wherein a first inlet pipe (101) of the heat exchanger is connected with the compressor (220) through the connecting pipe (210), one side of the compressor (220) is connected with the condenser (230) through the connecting pipe (210), one side of the finned tube heat exchanger (200) is connected with the condenser (230) through the connecting pipe (210), the other side of the finned tube heat exchanger is connected with the throttling device (240) through the connecting pipe (210), the throttling device (240) is connected with the evaporator (250) through the connecting pipe (210), and the other side of the evaporator (250) is connected with a first outlet pipe (102) of the heat exchanger through the connecting pipe.