CN218722419U - Heat exchanger and air conditioning equipment - Google Patents
Heat exchanger and air conditioning equipment Download PDFInfo
- Publication number
- CN218722419U CN218722419U CN202223008787.5U CN202223008787U CN218722419U CN 218722419 U CN218722419 U CN 218722419U CN 202223008787 U CN202223008787 U CN 202223008787U CN 218722419 U CN218722419 U CN 218722419U
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- heat exchange
- heat exchanger
- pipeline
- gas
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 39
- 210000000621 bronchi Anatomy 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 11
- 238000007599 discharging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004781 supercooling Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat exchanger and air conditioning equipment, including heat transfer chamber, and set up the heat exchange tube in the cavity, be provided with the main gas pipeline of upper and lower direction in the heat transfer chamber, main gas pipeline with heat transfer chamber air inlet intercommunication, the intercommunication has several bronchus on the main gas pipeline, bronchus will the heat transfer chamber is separated into several heat transfer areas, the bronchus is kept away from the other end downward sloping setting of main gas pipeline, the lateral wall is provided with the venthole under the bronchus. Through set up the air guide pipeline of entity in the heat transfer chamber of heat exchanger for the even distribution of gas outlet that gas accessible was seted up on it reaches each position in heat transfer chamber, and the gas uniform effect is better.
Description
Technical Field
The utility model relates to a refrigeration plant technical field, in particular to heat exchanger and air conditioning equipment.
Background
The refrigerating equipment, especially the commercial water chilling unit, mainly comprises compressor, heat exchanger, throttling set, the heat exchanger mainly includes evaporator, condenser. The condenser is used for cooling and condensing the gaseous refrigerant into liquid refrigerant.
The water chilling unit is generally a shell-and-tube condenser, and the heat exchange principle of the existing shell-and-tube condenser is as follows: superheated refrigerant steam enters the condenser from the top of the shell and exchanges heat with liquid water with lower temperature in the heat exchange tube of the condensation area, so that the refrigerant is cooled into liquid refrigerant after undergoing phase change. However, there are two major problems in this process:
firstly, because the number of air inlet pipes of the conventional shell-and-tube condenser is too small and the air inlet pipes are basically positioned at the top of the shell, a large number of flow dead zones are caused, and refrigerants cannot be uniformly distributed at heat exchange pipes at different positions, so that the problems of low heat exchange efficiency and the like are caused;
secondly, overheated refrigerant steam meets the cold condensation outside the tubes, and the condensate gathers certain thickness and just can drop, and the lime set that upper tube bank drops drenches on lower floor's tube bank, leads to this partial area of lime set parcel can't form "liquid bridge" with refrigerant steam heat transfer when serious even, thereby blocks refrigerant steam passage and influences heat exchange efficiency (tube bank effect).
Utility model patent with application number CN201310740172.8 discloses a shell and tube condenser, which utilizes a plurality of liquid guide plates arranged in the shell to separate the shell into a plurality of chambers, so that the heat exchange tube is arranged in the plurality of chambers, and an interval is arranged between the chambers, thereby forming a gas flow channel, for making the refrigerant gas flow arrives the plurality of chambers. Although the uniformity of refrigerant has been improved to a certain extent to the gaseous circulation passageway between the cavity, nevertheless because its passageway is comparatively open, so the uniformity is relatively poor, make the heat exchange tube apart from air inlet or middle main air flue position undertake higher heat transfer temperature, and the heat transfer utilization ratio of the heat exchange tube of keeping away from air inlet or middle main air flue position is lower, so there is a large amount of flow blind areas, in addition, be located the passageway of every cavity below, gaseous from bottom to top heat transfer, the liquid that accumulates on the heat exchange tube of every cavity below is more, the liquid film is thick promptly, this part does not do benefit to the heat transfer.
Therefore, how to improve the uniformity of heat exchange of the gas in the heat exchanger becomes an urgent technical problem to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
For solving the heat transfer homogeneity problem of gaseous in the heat exchanger, the utility model provides a set up the air guide pipeline in the heat exchanger and separate the heat transfer chamber for several heat transfer district, make gaseous through the through-hole homodisperse that sets up on the air guide pipeline to each position in heat transfer chamber, thereby improve the heat transfer homogeneity of gaseous in the heat exchanger.
The utility model discloses a technical scheme be, a heat exchanger, include the heat transfer chamber, and set up the heat exchange tube in the cavity, be provided with main gas pipeline of upper and lower direction in the heat transfer chamber, main gas pipeline with heat transfer chamber air inlet intercommunication, the intercommunication has several bronchus pipeline on the main gas pipeline, bronchus pipeline will the heat transfer chamber is separated into several heat transfer areas, the bronchus pipeline keeps away from main gas pipeline's other end downward sloping setting, the bronchus pipeline is provided with the venthole down the lateral wall.
In some embodiments, the end of the branch pipe is provided with a downward baffle, one end of the baffle is connected with the branch pipe, and the other end of the baffle is opposite to the branch pipe below the baffle to form a liquid outlet.
In some embodiments, the heat exchanger further comprises a top branch gas pipeline positioned at the uppermost part of the main gas pipeline, gas outlet holes are formed in the upper side wall and the lower side wall of the top branch gas pipeline, and a heat exchange pipe is arranged between the upper part of the top branch gas pipeline and the heat exchange cavity.
In some embodiments, the branch gas pipelines are symmetrically arranged on two sides of the main gas pipeline, and a liquid discharge port is arranged on the cavity of the heat exchange cavity below the branch gas pipelines on two sides.
In some embodiments, a super-cooling heat exchange tube is arranged along the inner wall of the heat exchange cavity above the liquid outlet.
In certain embodiments, the liquid discharge ports are two symmetrically disposed about the main gas duct.
In some embodiments, a flow guiding slope is provided between the main gas duct and the two liquid discharge ports.
In some embodiments, the heat exchange chamber air inlet is located below the flow directing ramp.
In some embodiments, the air inlet of the heat exchange cavity is provided with an oil-gas separator.
Air conditioning equipment comprises the heat exchanger.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a set up the air guide pipeline of entity in the heat transfer chamber of heat exchanger for the gas outlet that gas accessible was seted up on it is even distribute to each position in heat transfer chamber, and the gas equalizing effect is better.
2. The utility model discloses a separate into sub heat transfer district with the heat transfer chamber for from the liquid that falls of top sub heat transfer district along the heat transfer chamber is gone to the branch trachea way upper surface water conservancy diversion regional around, on avoiding flowing the heat exchange tube in the sub heat transfer district of below, avoids the liquid accumulation to form the liquid film on the heat exchange tube and hinders the heat transfer.
3. The utility model discloses a lateral wall is provided with the venthole under the bronchus way to make gaseous even distribution arrive the heat exchange tube in sub heat transfer district, gaseous follow sub heat transfer district top gets into downwards, avoids other heat exchange tubes that have thick liquid film with the lower part to contact earlier, thereby improves heat exchange efficiency.
4. The utility model discloses a bronchus way upper surface still is favorable to making superheated gas in the bronchus way carries out the heat transfer with the liquid of bronchus way upper surface, reduces gaseous superheat degree for its gaseous saturated gas that forms, thereby improve the heat exchange efficiency with the heat exchange tube.
Drawings
The following detailed description of the invention, taken in conjunction with the accompanying drawings, is provided to illustrate details and to facilitate understanding of the principles thereof, and is not necessarily drawn to scale, and like reference numerals may depict like parts in the different views. The drawings illustrate generally, by way of example, but not by way of limitation, embodiments discussed herein. Wherein:
fig. 1 is a schematic cross-sectional view of the heat exchanger of the present embodiment.
Fig. 2 is a schematic view of the air guide duct inside the heat exchanger of the present embodiment.
In the figure, 1, a heat exchange cavity; 2. a heat exchange pipe; 3. a main gas duct; 4. a branch gas pipe; 41. an air outlet; 5. an air inlet; 6. a top branch gas pipeline; 7. a liquid discharge port; 8. a diversion bevel; 9. an oil-gas separator; 10. a baffle plate; 11. an overcooled heat transfer zone.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and the following embodiments do not limit the utility model according to the claims. Moreover, all combinations of features described in the embodiments are not necessarily essential to the solution of the invention.
The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.
Examples
As shown in fig. 1 and 2, in this embodiment, a shell-and-tube condenser of an air conditioning system is taken as an example, the condenser includes a heat exchange cavity 1 in a shell and a heat exchange tube 2 disposed in the cavity, a main gas pipeline 3 in an up-and-down direction is disposed in the heat exchange cavity 1, the main gas pipeline 3 is communicated with an air inlet 5 of the heat exchange cavity 1 and is used for introducing gas to be heat exchanged into the main gas pipeline 3, a plurality of branch gas pipelines 4 are communicated with the main gas pipeline 3, three branch gas pipelines 4 are symmetrically disposed on two sides of the main gas pipeline 3 in this embodiment, so that the branch gas pipelines 4 divide the heat exchange cavity 1 into six sub heat exchange areas, the heat exchange tubes 2 are disposed in the sub heat exchange areas, the other ends of the branch gas pipelines 4 away from the main gas pipeline 3 are tilted downward, so that liquid falling from the upper sub heat exchange area is guided to a surrounding area of the heat exchange cavity 1 along an upper surface of the branch gas pipeline 4 and is prevented from flowing onto the heat exchange tubes 2 in the lower sub heat exchange area, and the lower side wall of the branch gas pipelines 4 is provided with air outlet holes 41 so that the liquid film is uniformly distributed on the upper side of the heat exchange tube 2 and the heat exchange tubes to prevent the heat exchange efficiency from being increased. The upper surface of the branch gas pipeline 4 is also beneficial to heat exchange between the superheated gas in the branch gas pipeline 4 and the liquid on the upper surface of the branch gas pipeline 4, the degree of superheat of the gas is reduced, the gas forms saturated gas, and therefore the heat exchange efficiency with the heat exchange tube 2 is improved.
The gas guide channel of this embodiment is the pipeline of entity, and it is different as the gas guide channel with the heat exchange tube 2 partition setting of prior art (utility model patent with application number CN 201310740172.8), because this embodiment is the pipeline of entity, so its equipartition effect to gas is better for gas accessible sets up the even distribution of gas outlet on it to each position of heat transfer chamber 1.
The end part of the branch gas pipeline 4 is provided with a downward arc-shaped baffle 10, one end of the baffle 10 is connected with the branch gas pipeline 4, the other end of the baffle 10 is opposite to the branch gas pipeline 4 below the baffle to form a liquid outlet, the baffle 10 and the branch gas pipeline 4 form a more closed sub heat exchange area, the baffle 10 can more effectively prevent liquid above from flowing into the sub heat exchange area below, and the liquid can be exposed from the liquid outlet.
The heat exchange device is characterized by further comprising a top branch gas pipeline 6 located at the uppermost part of the main gas pipeline 3, wherein gas outlet holes 41 are formed in the upper side wall and the lower side wall of the top branch gas pipeline 6 so as to be used for discharging gas upwards, and a heat exchange pipe 2 is arranged between the top branch gas pipeline 4 and the heat exchange cavity 1 and used for dissipating heat of gas upwards, so that the space of the heat exchange cavity 1 can be fully utilized.
The branch gas pipelines 4 are symmetrically arranged on two sides of the main gas pipeline 3, liquid discharge ports 7 are arranged on the cavity of the heat exchange cavity 1 below the branch gas pipelines 4 on two sides, and the two liquid discharge ports 7 are symmetrical relative to the main gas pipeline 3 and used for discharging liquid guided from two sides.
A supercooling heat exchange area 11 formed by a supercooling heat exchange tube 2 is arranged above the liquid discharge port 7 along the inner wall of the heat exchange cavity 1, so that liquid flowing down from the upper part is further cooled by the supercooling heat exchange tube 2 and then is discharged from the liquid discharge port 7 at the lower part.
A diversion inclined plane 8 is arranged between the main air pipeline 3 and the two liquid discharging ports 7 so as to divert the liquid in the lowest sub heat exchange area to the liquid discharging ports 7.
The gas inlet 5 of the heat exchange cavity 1 is provided with an oil-gas separator 9, the oil-gas separator 9 can be any one of various conventional oil-gas separators suitable for being installed at the place, as long as the oil-gas separator can realize oil-gas separation, oil mixed in the purified gas can be purified so as to prevent the oil from entering a pipeline and the heat exchange cavity, and the gas inlet 5 of the heat exchange cavity 1 is positioned below the flow guide inclined plane 8 so as to form an installation space of the oil-gas separator 9.
Although some terms are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention. The order of execution of the operations, steps, and the like in the apparatuses and methods shown in the specification and drawings may be implemented in any order as long as the output of the preceding process is not used in the subsequent process, unless otherwise specified. The use of terms of similar order (e.g., "first," "then," "second," "again," "then," etc.) for convenience of description does not imply that these must be performed in this order.
It will be understood by those of ordinary skill in the art that all directional references (e.g., above, below, upward, upper, downward, lower, top, bottom, left, right, vertical, horizontal, etc.) are used descriptively in the figures to aid the reader's understanding, and do not imply (e.g., position, orientation, or use, etc.) a limitation on the scope of the invention as defined by the appended claims, but merely to facilitate description of the application and simplify the description, and in the absence of a contrary intention, these directional terms do not indicate and imply that the referenced device or element must have a particular orientation or be constructed and operated in a particular orientation, and the directional terms "inner or outer" refer to both the inside and the outside of the contour relative to the components themselves.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown 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 terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Additionally, some ambiguous terms (e.g., substantially, definite, substantially, etc.) may refer to slight imprecision or deviation in terms of conditions, amounts, values, or dimensions, etc., some of which are within manufacturing or tolerance limits. It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate the distinction of the corresponding components, and the terms have no special meaning if not stated, and therefore, should not be construed as limiting the scope of the present application.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (10)
1. The heat exchanger comprises a heat exchange cavity and a heat exchange tube arranged in the cavity, and is characterized in that a main air pipeline in the vertical direction is arranged in the heat exchange cavity, the main air pipeline is communicated with an air inlet of the heat exchange cavity, a plurality of branch air pipelines are communicated on the main air pipeline, the branch air pipelines divide the heat exchange cavity into a plurality of sub heat exchange areas, the other end, far away from the main air pipeline, of each branch air pipeline is arranged in a downward inclining mode, and an air outlet hole is formed in the lower side wall of each branch air pipeline.
2. The heat exchanger according to claim 1, wherein the end of the branch gas pipeline is provided with a downward baffle, one end of the baffle is connected with the branch gas pipeline, and the other end of the baffle is opposite to the branch gas pipeline below the baffle to form a liquid outlet.
3. The heat exchanger according to claim 1, further comprising a top branch gas duct located at the uppermost portion of the main gas duct, wherein the top branch gas duct is provided with gas outlets on both upper and lower sidewalls thereof, and a heat exchange tube is disposed between the upper portion of the top branch gas duct and the heat exchange cavity.
4. The heat exchanger according to claim 1, wherein the branch gas pipelines are symmetrically arranged on two sides of the main gas pipeline, and a liquid discharge port is arranged on a cavity of the heat exchange cavity below the branch gas pipelines on two sides.
5. The heat exchanger of claim 4, wherein a super-cooled heat exchange tube is arranged along the inner wall of the heat exchange cavity above the liquid discharge port.
6. The heat exchanger according to claim 4 or 5, wherein the liquid discharge port is two symmetrically disposed about the main gas duct.
7. The heat exchanger of claim 6, wherein a flow guiding slope is arranged between the main gas duct and the two liquid discharge ports.
8. The heat exchanger of claim 7, wherein the heat exchange chamber air inlet is located below the flow directing ramp.
9. The heat exchanger of claim 1, wherein the air inlet of the heat exchange cavity is provided with an oil-gas separator.
10. Air conditioning apparatus, characterized in that it comprises a heat exchanger according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223008787.5U CN218722419U (en) | 2022-11-11 | 2022-11-11 | Heat exchanger and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223008787.5U CN218722419U (en) | 2022-11-11 | 2022-11-11 | Heat exchanger and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218722419U true CN218722419U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223008787.5U Active CN218722419U (en) | 2022-11-11 | 2022-11-11 | Heat exchanger and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218722419U (en) |
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2022
- 2022-11-11 CN CN202223008787.5U patent/CN218722419U/en active Active
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