CN213631663U

CN213631663U - Cooling tower and refrigeration system

Info

Publication number: CN213631663U
Application number: CN202022671329.4U
Authority: CN
Inventors: 周进; 刘洋; 陈培生
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-07-06
Anticipated expiration: 2030-11-18

Abstract

The utility model discloses a cooling tower and refrigerating system, the cooling tower includes the cooling tower body and sets up in this internal condenser of cooling tower, spray set, pack and filler bearing structure, refrigerant and spray set spun cooling water in the condenser carry out the heat exchange, filler bearing structure is used for supporting the filler and includes communicating pipe, connect communicating pipe between compressor and condenser and form the at least partial refrigerant pipeline between compressor and the condenser, the cooling water of filler of flowing through carries out the precooling to the refrigerant in the communicating pipe. The utility model discloses a filler bearing structure is when the bearing structure who packs as, and the coolant water that utilizes the filler of flowing through carries out the precooling to the refrigerant before getting into the condenser, reduces the refrigerant temperature who gets into the condenser to slow down the speed of condenser scale deposit. And the supercooling degree of the system can be increased by reducing the temperature of the refrigerant entering the condenser, so that the energy efficiency is improved.

Description

Cooling tower and refrigeration system

Technical Field

The utility model relates to an air conditioning technology field, in particular to cooling tower and refrigerating system.

Background

The evaporative condenser is used for carrying out enhanced heat exchange by spraying cooling water on the surface of the condenser and utilizing the principle of water evaporation and heat absorption. However, after the condenser is used for a long time, a large amount of water is evaporated to leave impurities on the surface of the heat exchange tube to form scale, so that the heat exchange effect is weakened. Meanwhile, the evaporative condenser is usually fixed on the upper part of the whole module and is not easy to disassemble, so once excessive scale is accumulated, the evaporative condenser is difficult to clean.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cooling tower and refrigerating system to reduce the scale deposit on condenser surface.

The utility model provides a cooling tower, including the cooling tower body and set up condenser, spray set, filler and the bearing structure that packs in the cooling tower body, refrigerant and spray set spun cooling water in the condenser carry out the heat exchange, and the bearing structure that packs is used for supporting to pack and includes communicating pipe, connects communicating pipe between compressor and condenser and forms the at least partial refrigerant pipeline between compressor and the condenser, and the cooling water of flowing through the filler carries out the precooling to the refrigerant in the communicating pipe.

In some embodiments, the packing support structure includes at least two communication tubes arranged in parallel.

In some embodiments, at least two communication pipes are arranged at intervals in the height direction.

In some embodiments, an inlet of the packing support structure is connected to the compressor, an outlet of the packing support structure is connected to the condenser, and the outlet is located above the inlet.

In some embodiments, the packing is movably disposed on the packing support structure.

In some embodiments, the cooling tower further comprises a cooling water pump and a water receiving tray located at the bottom of the cooling tower body, and the cooling water pump is connected with the water receiving tray and the spray device to convey cooling water in the water receiving tray to the spray device.

In some embodiments, the cooling tower further comprises a drain valve disposed at the drip tray.

In some embodiments, the spray device includes a plurality of spaced apart water jets.

In some embodiments, the cooling tower further comprises a fan, and the fan is located outside the air outlet arranged at the top of the cooling tower body.

The utility model discloses the second aspect provides a refrigerating system, including compressor, throttling arrangement, evaporimeter and if the utility model discloses the cooling tower that the first aspect provided.

Based on the utility model provides a cooling tower and refrigerating system, the cooling tower includes the cooling tower body and sets up in this internal condenser of cooling tower, spray set, pack and filler bearing structure, refrigerant and spray set spun cooling water in the condenser carry out the heat exchange, filler bearing structure is used for supporting the filler and includes communicating pipe, connect communicating pipe between compressor and condenser and form the at least partial refrigerant pipeline between compressor and the condenser, the cooling water of the filler of flowing through carries out the precooling to the refrigerant in the communicating pipe. The utility model discloses a filler bearing structure is when the bearing structure who packs as, and the coolant water that utilizes the filler of flowing through carries out the precooling to the refrigerant before getting into the condenser, reduces the refrigerant temperature who gets into the condenser to slow down the speed of condenser scale deposit. And the supercooling degree of the system can be increased by reducing the temperature of the refrigerant entering the condenser, so that the energy efficiency is improved.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of a refrigeration system according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of the packing support structure of FIG. 1;

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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Unless specifically stated 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. 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.

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 "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.

The main reason for the scaling of the condenser is that the temperature of the refrigerant entering the condenser is too high, and the heat exchange temperature difference between the cooling water and the pipe wall of the condenser is too large, so that the evaporation capacity in unit time is too large. When the evaporation amount per unit time is too large, excessive calcium-magnesium compounds and the like as impurities of the cooling water are precipitated and attached to the outer tube wall, and scale is formed. Therefore, to slow down the scaling process, it is necessary to lower the temperature of the refrigerant entering the condenser, thereby reducing the amount of evaporation.

For the above reasons, the present invention provides a refrigeration system as shown in fig. 1. The refrigeration system includes a cooling tower. The cooling tower comprises a cooling tower body 12, a condenser 9 arranged in the cooling tower body 12, a spraying device 10, a filler 8 and a filler supporting structure 6, wherein a refrigerant in the condenser 9 exchanges heat with cooling water sprayed by the spraying device 10, the filler supporting structure 6 is used for supporting the filler 8 and comprises a communicating pipe 61, the communicating pipe 61 is connected between the compressor 1 and the condenser 9 and forms at least part of refrigerant pipelines between the compressor 1 and the condenser 9, and the refrigerant in the communicating pipe 61 is cooled by the cooling water flowing through the filler 8.

The utility model discloses filler bearing structure 6 when being as the bearing structure of filler 8, utilizes the coolant water of flowing through filler 8 to carry out the precooling to the refrigerant before getting into condenser 9, reduces the refrigerant temperature that gets into condenser 9 to slow down the speed of condenser 9 scale deposit. And the supercooling degree of the system can be increased by reducing the temperature of the refrigerant entering the condenser 9, so that the energy efficiency is improved. In addition, the refrigeration system of the embodiment precools the refrigerant by using the cooling water flowing through the filler 8, and other cooling media do not need to be specially arranged, so that the cooling water resource is effectively utilized.

As shown in fig. 1, the refrigeration system of the present embodiment further includes a compressor 1, an evaporator 2, and a throttle device 3.

As shown in fig. 2, the packing support structure 6 of the present embodiment includes at least two communication pipes 61 arranged in parallel. Therefore, the refrigerant discharged by the compressor 1 is divided into at least two communicating pipes 61 and flows into the condenser 9, and the refrigerant in the at least two communicating pipes 61 can exchange heat with the cooling water, so that the heat exchange area is increased, and the cooling effect on the refrigerant is improved.

At least two communication pipes 61 of the present embodiment are provided at intervals in the height direction. Thus, the cooling water sprayed from the top flows through the packing 8 and then contacts with each communicating pipe 61 under the action of gravity to carry out heat exchange and cooling.

As shown in fig. 2, inlet 62 of packing support structure 6 of the present embodiment is connected to compressor 1, outlet 63 of packing support structure 6 is connected to condenser 9, and outlet 63 is located above inlet 62. The discharge air of the compressor 1 enters the inside of the packing support structure 6 from the inlet 62, then is branched into the plurality of communication pipes 61, and then is merged and discharged from the outlet 63. The inlet 62 is located at the lower end and the outlet 63 is located at the upper end, so that the flow of the cooling medium is generally upward and the flow of the cooling water is generally downward, further enhancing the cooling effect of the cooling medium.

Specifically, the structural form of the filler support structure 6 of the present embodiment is not unique, and can be changed according to the shape and size of the condenser 9 and the specification of the filler 8, where the structural form includes data such as the number and the pipe diameter of each communication pipe 61 and the distance between two adjacent communication pipes 61, and it is necessary to ensure the smooth flow of the refrigerant while satisfying the requirement of effectively supporting the filler.

The packing 8 of the present embodiment is movably arranged on the packing support structure 6. In the process of heat exchange between the cooling water and the refrigerant in the communication pipe 61 of the filler support structure 6, the surface of the communication pipe 61 is also scaled, and when the scale on the surface of the communication pipe 61 needs to be cleaned, the surface of the communication pipe 61 can be easily cleaned by only removing the filler 8.

As shown in fig. 1, the cooling tower of the present embodiment further includes a cooling water pump 4 and a water pan 7 located at the bottom of the cooling tower body 12. The cooling water pump 4 is connected with the water pan 7 and the spray device 10 to convey cooling water in the water pan 7 to the spray device 10.

The cooling tower of this embodiment further includes a drain valve 5 disposed at the water pan 7.

The sprinkler 10 includes a plurality of spaced apart water jets.

The cooling tower of this embodiment further includes a fan 11, and the fan 11 is located outside the air outlet formed in the top of the cooling tower body 12. The ascending air current formed by the operation of the fan 11 can reduce the air pressure in the cooling tower body 12, and the fresh air with lower outside temperature is sucked from the side and the bottom of the condenser 9 to cool the cooling water in the filler 8, so as to reduce the temperature of the cooling water. After flowing through the filler, the cooling water returns to the water receiving tray 7 to complete the cooling water circuit circulation.

The operation of the refrigeration system of the present embodiment is as follows:

gaseous refrigerant discharged from the discharge port of the compressor 1 enters the condenser 9. Cooling water sprayed by the spraying device 10 is sprayed onto the condenser 9, the cooling water and a refrigerant in the condenser 9 exchange heat with each other, the water after absorbing heat is changed from a liquid state to a gaseous state, and the heat is discharged to the outside of the unit along with air flow generated by the fan 11. The forced convection heat exchange generated by the fan 11 can further enhance the heat exchange effect. The high-temperature gaseous refrigerant leaves the condenser 9 after being condensed, is throttled by the throttling device 3, is sent to the evaporator 2 for refrigeration, is changed into a low-temperature gaseous refrigerant, returns to the compressor 1 for compression, and completes the whole cycle.

In the cooling water system, a cooling water pump 4 pumps water from a water receiving tray 7 and sends the water to a spraying device 10 at the top of a condenser 9 for spraying, part of cooling water is changed into a gaseous state after being evaporated on the surface of a heat exchanger and leaves a unit, the rest of cooling water flows through a filler 8 from top to bottom after being heated, the air pressure inside a cooling tower body 12 can be reduced by ascending air flow formed by the operation of a fan 11, new air with lower external temperature is sucked from the side surface and the bottom of the condenser 9 to cool the cooling water in the filler, the temperature of the new air is reduced, and the cooling water returns to the water receiving tray 7 after flowing through the filler to complete cooling water path.

This embodiment changes a part of the discharge pipe of the compressor 1 to a leg cooler shown in fig. 2, which is also a cooling section of the discharge pipe while serving as a packing support structure. The cooling water after flowing through the filler flows through the filler and then flows through the bracket type cooler before entering the water pan, the cooling water at the stage is utilized to pre-cool the exhaust pipe section, the exhaust temperature entering the top condenser 9 is reduced, the condensation heat exchange quantity is ensured, the scaling quantity of the heat exchanger is reduced, and the attenuation of the heat exchange capacity of the heat exchanger is delayed. Meanwhile, as the heat exchange load of the condenser is reduced, the supercooling degree of the system is increased, and the energy efficiency of the unit is improved.

Because the exhaust temperature that gets into the posture cooler is higher, the cooling water also can have the evaporation phenomenon here, has partial impurity to persist on its surface equally, also has the impurity of liquid aquatic to accumulate on the surface in addition, forms the incrustation scale, so the impurity content of the cooling water that gets into water collector 7 reduces, also is favorable to slowing down the scale deposit speed on condenser surface. And the scale accumulated on the surface of the bracket cooler is positioned below the condenser, so that the water scale can be easily cleaned only by removing the filler, and the difficulty in daily maintenance of the unit is reduced.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The cooling tower is characterized by comprising a cooling tower body (12), a condenser (9), a spraying device (10), a filler (8) and a filler supporting structure (6) which are arranged in the cooling tower body (12), wherein a refrigerant in the condenser (9) exchanges heat with cooling water sprayed by the spraying device (10), the filler supporting structure (6) is used for supporting the filler (8) and comprises a communicating pipe (61), the communicating pipe (61) is connected between a compressor (1) and the condenser (9) and forms at least part of refrigerant pipelines between the compressor (1) and the condenser (9), and the cooling water flowing through the filler (8) precools the refrigerant in the communicating pipe (61).

2. A cooling tower according to claim 1, characterised in that the fill material support structure (6) comprises at least two communicating tubes (61) arranged in parallel.

3. The cooling tower according to claim 2, wherein the at least two communication pipes (61) are arranged at intervals in a height direction.

4. A cooling tower according to claim 3, characterised in that the inlet (62) of the packing support structure (6) is connected to the compressor (1), that the outlet (63) of the packing support structure (6) is connected to the condenser (9), and that the outlet (63) is located above the inlet (62).

5. A cooling tower according to claim 1, characterised in that the packing (8) is movably arranged on the packing support structure (6).

6. The cooling tower according to any one of claims 1 to 5, further comprising a cooling water pump (4) and a water pan (7) located at the bottom of the cooling tower body (12), wherein the cooling water pump (4) connects the water pan (7) and the spray device (10) to deliver the cooling water in the water pan (7) to the spray device (10).

7. The cooling tower according to claim 6, further comprising a drain valve (5) provided at the drip tray (7).

8. A cooling tower according to any one of claims 1 to 5, wherein the spray means (10) comprises a plurality of spaced water jets.

9. Cooling tower according to any of claims 1 to 5, characterized in that it further comprises a fan (11), said fan (11) being located outside an air outlet provided at the top of the cooling tower body (12).

10. Refrigeration system, characterized in that it comprises a compressor (1), a throttling device (3), an evaporator (2) and a cooling tower according to any one of claims 1 to 9.