CN215675894U

CN215675894U - High-efficiency energy-saving refrigerating system

Info

Publication number: CN215675894U
Application number: CN202122136789.1U
Authority: CN
Inventors: 初海涛
Original assignee: Shenzhen Kezerui Technology Development Co ltd
Current assignee: Shenzhen Kezerui Technology Development Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-01-28
Anticipated expiration: 2031-09-06

Abstract

An efficient energy-saving refrigerating system belongs to the technical field of refrigerating equipment. The utility model solves the problem that the refrigeration efficiency of the refrigeration system is lower because the heat exchange contact area in the heat exchanger is smaller because the heat exchange pipe of the heat exchanger of the traditional refrigeration system is filled with semi-liquid vapor refrigerant. The utility model comprises a heat exchanger, a separator, a compressor and a condenser, wherein the heat exchanger is connected with the separator, the heat exchanger, the compressor and the condenser are sequentially connected to form a loop, and a refrigerant is arranged in the separator. The refrigerating system ensures that the separator conveys the refrigerant in a full liquid state into the heat exchanger, and improves the refrigerating efficiency of the refrigerating system.

Description

High-efficiency energy-saving refrigerating system

Technical Field

The utility model relates to an energy-saving refrigerating system, and belongs to the technical field of refrigerating equipment.

Background

A refrigeration system is a system for transferring heat from a substance having a low temperature to a substance having a high temperature by using external energy, and the refrigeration system may be divided into a vapor refrigeration system, an air refrigeration system, and a thermoelectric refrigeration system. The vapor refrigeration system can be divided into a vapor compression type, a vapor absorption type and a vapor injection type;

the existing refrigerating system has the following defects:

1. the existing refrigeration system adopts a throttling refrigeration heat exchanger, a semi-liquid vapor refrigerant is arranged in a heat exchange pipe inside the throttling refrigeration heat exchanger, and the heat exchange contact area in the refrigeration heat exchanger is smaller, so that the refrigeration efficiency of the refrigeration system is lower;

2. the traditional separator of the refrigeration system can not control the liquid levels of oil and refrigerant in the separator, so that too much or too little oil and refrigerant liquid in the separator can influence the refrigeration effect of the refrigeration system.

In summary, there is a need for a refrigeration system that can maintain the liquid-full state of the heat exchange tube in the heat exchanger, has a large contact area in the heat exchanger, has a good heat exchange effect and can control the liquid level heights of the oil and the refrigerant in the separator to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model solves the problem that the refrigeration system has low refrigeration efficiency due to the fact that a semi-liquid vapor refrigerant is arranged in a heat exchange pipe of a heat exchanger of a traditional refrigeration system and the contact area of heat exchange in the heat exchanger is small, and further discloses a high-efficiency energy-saving refrigeration system. The following presents a simplified summary of the utility model in order to provide a basic understanding of some aspects of the utility model. It should be understood that this summary is not an exhaustive overview of the utility model. It is not intended to determine the key or critical elements of the present invention, nor is it intended to limit the scope of the present invention.

The technical scheme of the utility model is as follows:

the high-efficiency energy-saving refrigerating system comprises a heat exchanger, a separator, a compressor and a condenser, wherein the heat exchanger is connected with the separator through establishment, the heat exchanger, the compressor and the condenser are sequentially connected to form a loop, and a refrigerant is arranged in the separator.

Further, the heat exchanger is a plate heat exchanger.

Furthermore, a second connecting pipe is connected between the separator and the heat exchanger, the input end of the second connecting pipe is connected with the output end of the separator, the output end of the second connecting pipe is arranged in the separator, refrigerant flows in the second connecting pipe, a first connecting pipe is further arranged in the heat exchanger, the first connecting pipe and the second connecting pipe exchange heat in the heat exchanger, and the first connecting pipe is used for outputting cold air.

Furthermore, the separator is also provided with oil liquid, and the density of the oil liquid is less than that of the refrigerant.

Further, the separator is connected with the compressor through a steam extraction pipe.

Furthermore, a tray is arranged in the separator, an oil leakage opening is formed in the tray, the tray is connected with a siphon, the siphon is fixedly installed at the bottom of the inner side of the separator, and the height of the siphon is higher than the liquid level of the refrigerant.

Furthermore, an oil return pipe is arranged in the siphon pipe, the oil return pipe penetrates through the separator to be communicated with the steam extraction pipe, and a connecting rod of the oil return pipe and the steam extraction pipe is arranged at the end close to the compressor.

Further, a liquid storage tank is arranged between the separator and the condenser.

Furthermore, a valve is arranged on a connecting pipeline between the liquid storage tank and the separator, a float switch is arranged in the separator, and the float switch is connected with the valve.

Further, the heat exchanger is a surface heat exchanger, a heat accumulating type heat exchanger, a shell-and-tube heat exchanger, a jacketed heat exchanger, a spray type heat exchanger or an immersion type coil heat exchanger.

The utility model has the beneficial effects that:

1. according to the efficient energy-saving refrigeration system, the vapor-state refrigerant is extracted through the steam extraction pipe in the separator and processed into the liquid-state refrigerant through the compressor and the condenser, so that the liquid-state refrigerant flows through the heat exchange pipe in the heat exchanger, the heat exchange contact area in the heat exchanger is increased, and the refrigeration effect of the refrigeration system is improved;

2. the separator of the high-efficiency energy-saving refrigerating system controls the liquid level of the refrigerant in the separator through the float switch and the valve, so that the refrigerating effect of the refrigerating system is prevented from being influenced by too much or too little refrigerant in the separator;

3. the tray and the siphon which are arranged in the separator of the high-efficiency energy-saving refrigerating system are matched for use, so that excessive oil in the separator is avoided, and the liquid level of the oil in the separator is ensured to be lower than that of the tray.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an energy efficient refrigeration system;

fig. 2 is a partial schematic view of fig. 1.

1-heat exchanger, 2-first connecting pipe, 3-second connecting pipe, 4-separator, 5-refrigerant, 6-oil, 7-tray, 8-oil return pipe, 9-float switch, 10-valve, 11-steam extraction pipe, 12-compressor, 13-condenser, 14-liquid storage tank and 15-siphon.

Detailed Description

In order that the objects, aspects and advantages of the utility model will become more apparent, the utility model will be described by way of example only, and in connection with the accompanying drawings. It should be understood that the description is intended to be exemplary, and not intended to limit the scope of the utility model. In the following description, moreover, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: the embodiment is described with reference to fig. 1-2, and the efficient energy-saving refrigeration system of the embodiment includes a heat exchanger 1, a separator 4, a compressor 12 and a condenser 13, where the heat exchanger 1 is connected with the separator 4 by building, the heat exchanger 1, the compressor 12 and the condenser 13 are sequentially connected and form a loop, a refrigerant 5 is provided in the separator 4, the refrigerant 5 in the separator 4 is conveyed into the heat exchanger 1 for heat exchange, the refrigerant 5 after heat exchange flows back into the separator 4, the refrigerant 5 after heat exchange is divided into a vapor refrigerant and a liquid refrigerant, the vapor refrigerant is input into the compressor 12 for compression, the refrigerant after compression enters the condenser 13 for condensation, the liquid refrigerant after condensation flows into the separator 4 for heat exchange for the heat exchanger 1, and the heat exchanger 1 outputs cold air to the outside after heat exchange.

The second embodiment is as follows: the embodiment is described with reference to fig. 1-2, in which the heat exchanger 1 is a plate heat exchanger, a second connecting pipe 3 is connected between the separator 4 and the heat exchanger 1, an input end of the second connecting pipe 3 is connected to an output end of the separator 4, an output end of the second connecting pipe 3 is disposed in the separator 4, a refrigerant 5 flows in the second connecting pipe 3, a first connecting pipe 2 is further disposed in the heat exchanger 1, the first connecting pipe 2 and the second connecting pipe 3 exchange heat in the heat exchanger 1, the first connecting pipe 2 is used for outputting cold air, on the basis of the first embodiment, when the heat exchanger 1 is a plate heat exchanger, the separator 4 is connected to the heat exchanger 1 through a pipeline, the first connecting pipe 2 and the second connecting pipe 3 convey cold air to the outside after exchanging heat in the heat exchanger 1, the second connecting pipe 3 is used for conveying the refrigerant 5 in the separator 4 to exchange heat in the heat exchanger 1, the heat-exchanged refrigerant 5 is then sent back to the separator 1.

The third concrete implementation mode: the embodiment is described with reference to fig. 1-2, and the separator 4 further contains oil liquid 6, the density of the oil liquid 6 is less than that of the refrigerant 5, because the density of the oil liquid 6 is less than that of the refrigerant 5, the oil liquid 6 floats above the refrigerant 5, and the oil liquid 6 functions to separate the vapor refrigerant and the liquid refrigerant in the separator 4, so as to ensure that the vapor refrigerant and the liquid refrigerant are not fused, so that the refrigerant 5 input into the heat exchanger 1 is a full liquid refrigerant, and the refrigeration effect is improved.

The fourth concrete implementation mode: in the energy-efficient refrigeration system according to the present embodiment, the separator 4 is connected to the compressor 12 through the steam extraction pipe 11, and the steam extraction pipe 11 extracts the gaseous refrigerant in the separator 4 into the compressor 12, so that the inside of the separator 4 is in a negative pressure state.

The fifth concrete implementation mode: the embodiment is described with reference to fig. 1-2, and the efficient energy-saving refrigeration system of the embodiment is characterized in that a tray 7 is arranged in the separator 4, an oil leakage opening is arranged on the tray 7, the tray 7 is connected with a siphon 15, the siphon 15 is fixedly installed at the inner bottom of the separator 4, the height of the siphon 15 is higher than the liquid level of the refrigerant 5, and when the oil 6 in the separator 4 is submerged in the tray 7, the oil 6 is leaked from the oil leakage opening of the tray 7 to the lower side of the tray 7.

The sixth specific implementation mode: the embodiment is described with reference to fig. 1-2, and the energy-efficient refrigeration system of the embodiment is provided with an oil return pipe 8 in the siphon 15, where the oil return pipe 8 passes through the separator 4 and is communicated with the steam extraction pipe 11, and a connecting rod of the oil return pipe 8 and the steam extraction pipe 11 is arranged near the compressor 12, and based on the fifth embodiment, the oil return pipe 8 is arranged in the siphon 15, and when too much oil 6 is in the separator 4, the oil 6 leaks into the siphon 15 through an oil leakage port of the tray 7, and part of the oil 6 is conveyed into the compressor 12 through the oil return pipe 8.

The seventh embodiment: the embodiment is described with reference to fig. 1-2, and the energy-efficient refrigeration system of the embodiment is provided with a liquid storage tank 14 between the separator 4 and the condenser 13, wherein the liquid storage tank 14 is additionally arranged between the separator 4 and the condenser 13, the refrigerant 5 is prevented from excessively influencing the normal operation of the system, and the liquid storage tank 14 is used for storing the refrigerant 5 condensed by the condenser 13.

The specific implementation mode is eight: the embodiment is described with reference to fig. 1-2, and the high-efficiency energy-saving refrigeration system of the embodiment is characterized in that a valve 10 is arranged on a connecting pipeline between the liquid storage tank 14 and the separator, a float switch 9 is arranged in the separator 4, the float switch 9 is connected with the valve 10, when the liquid level of the refrigerant 5 in the separator 4 exceeds the float switch 9, the float switch 9 drives the valve 10 to close, the refrigerant 5 in the liquid storage tank 14 is not conveyed into the separator 4 any more, and when the liquid level of the refrigerant 5 in the separator 4 is lower than the float switch 9, the float switch 9 drives the valve 10 to open, and the refrigerant 5 in the liquid storage tank 14 is conveyed into the separator 4.

The specific implementation method nine: the embodiment is described with reference to fig. 1-2, and the heat exchanger 1 is a shell-and-tube heat exchanger, the separator 4 is connected to the shell-and-tube heat exchanger, the refrigerant 5 in the separator 4 is input into the shell-and-tube heat exchanger and forms heat exchange in the shell-and-tube heat exchanger, the refrigerant 5 after heat exchange flows back into the separator 4, and the shell-and-tube heat exchanger provides cold air to the outside.

The detailed implementation mode is ten: the embodiment will be described with reference to fig. 1-2, and the heat exchanger 1 of the embodiment is a surface heat exchanger, a regenerative heat exchanger, a jacketed heat exchanger, a spray heat exchanger or an immersion coil heat exchanger.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "on … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore, the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-efficient refrigerating system which characterized in that: the heat exchanger (1) is connected with the separator (4), the heat exchanger (1), the compressor (12) and the condenser (13) are sequentially connected to form a loop, and a refrigerant (5) is arranged in the separator (4).

2. An economized refrigerant system according to claim 1, wherein: the heat exchanger (1) is a plate heat exchanger.

3. An economized refrigerant system according to claim 2, wherein: be connected with second connecting pipe (3) between separator (4) and heat exchanger (1), the input of second connecting pipe (3) is connected with the output of separator (4), the output setting of second connecting pipe (3) is in separator (4), it has refrigerant (5) to flow in second connecting pipe (3), still be provided with first connecting pipe (2) in heat exchanger (1), first connecting pipe (2) and second connecting pipe (3) heat transfer in heat exchanger (1), first connecting pipe (2) are used for exporting air conditioning.

4. An economized refrigerant system according to claim 3, wherein: the separator (4) is also internally provided with oil liquid (6), and the density of the oil liquid (6) is less than that of the refrigerant (5).

5. An economized refrigerant system according to claim 1 or 4, wherein: the separator (4) is connected with the compressor (12) through a steam extraction pipe (11).

6. An economized refrigerant system according to claim 5, wherein: the separator is characterized in that a tray (7) is arranged in the separator (4), an oil leakage opening is formed in the tray (7), the tray (7) is connected with a siphon (15), the siphon (15) is fixedly installed at the bottom of the inner side of the separator (4), and the height of the siphon (15) is higher than the liquid level height of a refrigerant (5).

7. An economized refrigerant system according to claim 6, wherein: an oil return pipe (8) is arranged in the siphon (15), the oil return pipe (8) penetrates through the separator (4) to be communicated with the steam extraction pipe (11), and a connecting rod of the oil return pipe (8) and the steam extraction pipe (11) is arranged at the end close to the compressor (12).

8. An economized refrigerant system according to claim 7, wherein: a liquid storage tank (14) is arranged between the separator (4) and the condenser (13).

9. An economized refrigerant system according to claim 8, wherein: a valve (10) is arranged on a connecting pipeline of the liquid storage tank (14) and the separator, a float switch (9) is arranged in the separator (4), and the float switch (9) is connected with the valve (10).

10. An economized refrigerant system according to claim 1, wherein: the heat exchanger (1) is a surface heat exchanger, a heat accumulating type heat exchanger, a shell-and-tube heat exchanger, a jacketed heat exchanger, a spray type heat exchanger or an immersion type coil heat exchanger.