CN215725287U - Drainage mechanism, heat exchange unit and indirect heating equipment - Google Patents
Drainage mechanism, heat exchange unit and indirect heating equipment Download PDFInfo
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- CN215725287U CN215725287U CN202120117885.9U CN202120117885U CN215725287U CN 215725287 U CN215725287 U CN 215725287U CN 202120117885 U CN202120117885 U CN 202120117885U CN 215725287 U CN215725287 U CN 215725287U
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Abstract
The utility model discloses a drainage mechanism, a heat exchange unit and heat exchange equipment. The drainage mechanism comprises a drainage piece, and the drainage piece extends along the length direction of the heat exchange tube; the drainage piece is provided with a drainage surface facing the outer side wall surface of the heat exchange tube, and the drainage surface is suitable for forming a climbing clearance with the outer side wall surface of the heat exchange tube. Through the climbing clearance formed between the drainage surface and the heat exchange tube, compared with the parts with climbing clearances at other positions, the medium of the part with climbing clearances flows faster, for example, oil drops of lubricating oil and refrigerant in a gas state flow to the outlet along the climbing clearances, and the mixture of the refrigerant and the lubricating oil still flows out of the outlet of the heat exchanger together after passing through the heat exchanger, so that the inner volume of the heat exchanger is reduced, and the oil loss of the system is effectively avoided.
Description
Technical Field
The utility model relates to the technical field of heat exchange equipment, in particular to a drainage mechanism, a heat exchange unit and heat exchange equipment.
Background
When the shell and tube heat exchanger in the refrigeration system is used as a refrigeration system evaporator, a refrigerant is evaporated in a cavity in a shell to be changed into gas and needs to flow out from a gas port at the upper part of the heat exchanger, and lubricating oil carried in the refrigerant is remained in the cavity of a container and cannot flow out along with the gas, so that the lubricating oil cannot return to a compressor, and system faults are caused. Therefore, extra oil return pipelines and controllers are often needed to be added, but if oil return is achieved by adopting the mode, the cost and the volume are both greatly increased, the control is complex, and the reliability of the structure is reduced.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is that the shell and tube heat exchanger in the prior art has the defects of greatly increased cost and structural volume, complex oil return control and poor system reliability due to the addition of an additional oil return pipeline and a controller.
Therefore, the utility model provides a drainage mechanism which is suitable for being matched with a heat exchange tube for installation and comprises:
the flow guide piece extends along the length direction of the heat exchange tube; the drainage piece is provided with a drainage surface facing the outer side wall surface of the heat exchange tube, and the drainage surface is suitable for forming a climbing clearance with the outer side wall surface of the heat exchange tube.
Optionally, in the above flow guide mechanism, a cross section of the flow guide surface along the radial direction of the heat exchange tube is a closed surface.
Optionally, in the drainage mechanism, the drainage member is a pipe structure, the heat exchange pipe can be arranged inside the pipe structure in a penetrating manner, and the inner wall surface of the pipe structure is a drainage surface;
the closed surface is square, circular or elliptical.
Optionally, foretell drainage mechanism still includes the installed part, be equipped with a plurality of mounting holes on the installed part, body structure fixed mounting be in the mounting hole.
Optionally, foretell drainage mechanism, the drainage piece is the cylinder structure, the cylinder structure is equipped with a plurality of drainage holes along the length direction of cylinder, the drainage hole is the through-hole structure, the heat exchange tube can be worn to establish drainage downthehole side, the inside wall face in drainage hole is the drainage face.
Optionally, in the above drainage mechanism, the drainage member is a plurality of lamellar structures, the lamellar structures are suitable for being arranged along the peripheral wall surface of the heat exchange tube, and the drainage surface is an arc surface or a plane.
A heat exchange unit comprises
The refrigeration device comprises a shell, a refrigeration cavity and a heat exchanger, wherein the shell is provided with a refrigeration cavity which is suitable for circulating refrigeration cycle media;
the heat exchange mechanism is provided with a heat exchange tube, the heat exchange tube is arranged in the shell, and the heat exchange tube is suitable for the circulation of a cold-carrying medium;
and the drainage mechanism is arranged in the shell, and a climbing clearance suitable for climbing of the refrigeration cycle medium is formed between the drainage surface and the peripheral wall surface of the heat exchange tube.
Optionally, the heat exchange unit further comprises a first separator and a second separator;
the first partition plate and the second partition plate are arranged in a shell, the first partition plate and the shell are enclosed to form a first cavity, and the second partition plate and the shell are enclosed to form a second cavity; the two ends of the heat exchange tube are connected with the first partition plate and the second partition plate to be communicated with the first cavity and the second cavity, and the first cavity and the second cavity are suitable for circulating the cold-carrying medium.
Optionally, in the heat exchange unit described above, the first partition plate and the second partition plate are arranged in parallel.
Optionally, in the heat exchange unit described above, the mounting member of the flow guide mechanism is fixedly connected to the inner wall surface of the housing.
Optionally, in the heat exchange unit described above, the heat exchange tube includes a tube body and fin portions, and the fin portions are provided in a protruding structure on an inner peripheral wall surface or an outer peripheral wall surface of the tube body.
Optionally, in the heat exchange unit, the heat exchange tube is a threaded tube, an embossed tube, a knurled tube or a pin tube.
A heat exchange device is characterized by comprising a heat exchange unit.
Optionally, the heat exchange device further includes:
the two ends of the pressure feeding unit are respectively communicated with a first refrigerant interface and a second refrigerant interface of the shell, and the pressure feeding unit is suitable for flowing the refrigeration cycle medium into or out of the refrigeration cavity;
and two ends of the pumping unit are respectively communicated with the first secondary refrigerant interface or the second secondary refrigerant interface of the shell, and the pumping unit is suitable for flowing the secondary cooling medium into or out of the heat exchange tube.
The technical scheme provided by the utility model has the following advantages:
1. according to the drainage mechanism provided by the utility model, the climbing clearance is formed between the drainage surface and the heat exchange tube, compared with other positions, the part with the climbing clearance has a faster medium flow, for example, oil drops of lubricating oil and refrigerant in a gas state flow to the outlet along the climbing clearance, so that the mixture of the refrigerant and the lubricating oil in the refrigeration cycle medium still flows out of the outlet of the heat exchanger together after passing through the heat exchanger, thereby reducing the inner volume of the heat exchanger on one hand, and effectively avoiding oil loss of the system on the other hand.
2. The drainage mechanism provided by the utility model is characterized in that the drainage piece in the shape of a pipe body structure and the drainage piece in the shape of a main body structure but provided with a plurality of drainage holes are embodied in a closed surface form, so that the drainage mechanism is convenient to use and manufacture, and meanwhile, the actual drainage piece and the heat exchange pipe are convenient to install.
3. According to the drainage mechanism provided by the utility model, the installation part is arranged, so that the subsequent assembly efficiency is improved.
4. According to the heat exchange unit provided by the utility model, through the matching arrangement of the heat exchange mechanism and the shell, when the heat exchange unit is used as an evaporator, a refrigerant is fully boiled in the refrigeration cavity, the heat exchange efficiency is high, and meanwhile, the oil return is convenient and reliable; and when used as a condenser, has the same function as a conventional shell-and-tube condenser.
5. According to the heat exchange unit provided by the utility model, the fin parts arranged on the peripheral wall surface of the pipe body further promote the disturbance of fluid, so that the heat transfer boundary layer is continuously broken, the heat exchange is further strengthened, and the heat exchange efficiency is improved. The wing parts arranged on the inner peripheral wall surface of the tube body further improve the heat exchange capacity between the cooling medium circulating inside and the tube body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a heat exchange unit provided in an embodiment of the present invention;
FIG. 2 is a schematic view of a flow directing mechanism in a heat exchange unit provided in an embodiment of the present invention;
FIG. 3 is a schematic structural view of a variant embodiment of the flow-directing means in the heat exchange unit provided in the example of the utility model;
description of reference numerals:
1-heat exchange tube;
2-a drainage member; 21-a drainage surface; 22-drainage holes;
3-mounting parts;
4-a shell; 41-a first refrigerant interface; 42-a second refrigerant interface; 43-first coolant interface; 44-a second coolant interface;
5-a first separator;
6-a second separator;
d-a climbing clearance;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a drainage mechanism, which is suitable for being installed in cooperation with a heat exchange tube 1, as shown in fig. 1 to 3, and includes: the flow guide piece 2 extends along the length direction of the heat exchange tube 1; the flow guide 2 has a flow guide surface 21 disposed toward the outer side wall surface of the heat exchange tube 1, and the flow guide surface 21 is adapted to form a climbing clearance d with the outer side wall surface of the heat exchange tube 1.
Specifically, in the present embodiment, as shown in fig. 2, the flow guiding element 2 is a tube structure, and when the heat exchange tube 1 is actually installed and used, the heat exchange tube penetrates through the inner side of the tube structure, so that the inner wall surface of the tube structure is a flow guiding surface 21; for example, the body can be the pipe, and the pipe is the closing surface along the radial direction's of heat exchange tube 1 cross-section, and the closing surface is circular shape body structure for the present embodiment chooses. In alternative embodiments, the closing surface may also be square, rectangular or oval, provided that it is ensured that the climbing gap d can be formed.
As shown in fig. 2, the drainage mechanism that this embodiment provided still includes installed part 3, is equipped with a plurality of mounting holes on the installed part 3, and body structure fixed mounting is in the mounting hole. The mounting hole and the drainage piece 2 can be connected in a welding or inserting mode.
In a first modification of this embodiment, the shape of the flow guiding element 2 is changed, and the mounting element 3 is not provided, as shown in fig. 3, the flow guiding element 2 may also be a cylindrical structure, and when the actual main structure is mounted, the flow guiding element 2 may be welded to the inner wall surface of the housing 4, so as to mount the flow guiding element 2; the column body structure is provided with a plurality of drainage holes 22 along the length direction of the column body, and the drainage holes 22 are in a through hole structure; during the actual use, heat exchange tube 1 can pass and establish in drainage hole 22 inboard, and the inside wall face in drainage hole 22 is drainage face 21. The above-mentioned flow guide 2 can still realize the climbing clearance d between the flow guide surface 21 and the heat exchange tube 1. The cross section of the flow guide surface 21 of the flow guide member 2 in the radial direction of the heat exchange tube 1 is a closed surface; the shape and structure of the closed surface can be round, oval, square or rectangular, as long as the climbing clearance d can be formed.
The second deformation form of this embodiment is as follows, and the shape of drainage piece 2 changes, but still sets up installed part 3, and drainage piece 2 is a plurality of lamellar structures, and lamellar structure is suitable for along heat exchange tube 1 periphery wall setting, and drainage face 21 is arc surface or plane. At this time, the cross section of the flow guide surface 21 in the radial direction of the heat exchange tube 1 is a non-closed surface; and the transmission of the actual refrigeration cycle medium is climbing along the direction of the sheet body.
According to the drainage mechanism provided by the embodiment, the climbing clearance d is formed between the drainage surface 21 and the heat exchange tube 1, so that compared with other positions, the part with the climbing clearance d has a faster medium flow, for example, oil drops of lubricating oil in a refrigeration cycle medium and refrigerant in a gas state flow to the outlet along the climbing clearance d, and it is ensured that a mixture of the refrigerant and the lubricating oil still flows out of the outlet of the heat exchanger together after passing through the heat exchanger, so that the inner volume of the heat exchanger is reduced, and the oil loss of the system is effectively avoided.
Example 2
The present embodiments provide a heat exchange unit comprising: a shell 4, a heat exchange mechanism and a flow guiding mechanism provided in the embodiment 1. Wherein, the shell 4 is provided with a refrigeration cavity which is suitable for circulating refrigeration cycle medium; the heat exchange mechanism is provided with a heat exchange tube which is arranged in the shell 4, and the heat exchange tube 1 is suitable for carrying a cold medium to circulate; the drainage mechanism is installed in the shell 4, and a climbing clearance d suitable for climbing of the refrigeration cycle medium is formed between the drainage surface and the peripheral wall surface of the heat exchange tube 1.
The heat exchange tube 1 provided by the embodiment comprises a tube body and a first fin part, wherein the first fin part is a protruding structure arranged on the peripheral wall surface of the tube body. That is, the heat exchange pipe 1 is an external tooth pipe.
Of course, in other alternative embodiments, the heat exchange tube 1 further includes a second fin portion disposed in a protruding structure on the outer circumferential wall surface of the tube body. The wing parts arranged on the peripheral wall surface of the pipe body further promote the disturbance of fluid, so that the heat transfer boundary layer is continuously broken, the heat exchange is further strengthened, and the heat exchange efficiency is improved. The wing parts arranged on the inner peripheral wall surface of the tube body further improve the heat exchange capacity between the cooling medium circulating inside and the tube body.
In other optional embodiments, the heat exchange tube is one of a threaded tube, a corrugated tube, a checkered tube, a pin tube, a sintered tube, a sand blasting tube, and a concave tube, and the heat exchange of the heat exchange tube can be realized.
In this embodiment, the heat exchange unit further comprises a first separator 5 and a second separator 6; both the first 5 and second 6 baffles are mounted within the housing. Particularly, first baffle 5, second baffle 6 all weld on the internal face of casing 4, and first baffle 5 is equipped with a plurality of first connecting holes, is equipped with a plurality of second connecting holes on the second baffle 6, and first connecting hole and second connecting hole are connected at the both ends of heat exchange tube 1. In this embodiment, the first partition plate and the second partition plate are arranged in parallel.
The connection and installation between the first partition plate 5 and the second partition plate 6 and the heat exchange tube 1 can be realized by welding or expansion joint. As long as the sealing installation between the first partition plate 5 and the heat exchange tube and the sealing installation between the second partition plate 6 and the heat exchange tube are ensured.
In the present embodiment, as shown in fig. 1, the casing includes a first refrigerant interface 41 and a second refrigerant interface 42 disposed on the left side thereof, and a first coolant interface 43 and a second coolant interface 44 disposed on the right side thereof, and the first partition 5 and the second partition 6 are disposed near the first coolant interface 43 and the second coolant interface 44, respectively.
In addition, the first partition plate 5 and the shell 4 jointly enclose and close to be a first cavity, and the second partition plate 6 and the shell 4 enclose and close to be a second cavity, so that the first cavity, the second cavity and the heat exchange tubes are internally and jointly circulated to carry cold media.
In this embodiment, the mounting member of the drainage mechanism is fixedly connected to the inner wall surface of the housing. For example, the side wall surface of the mounting member and the inner wall surface of the housing are welded to each other to fix them.
The heat exchange unit provided by the embodiment specifically uses the following processes:
firstly, a refrigeration cycle medium, namely a mixture of a liquid refrigerant and lubricating oil, is stored in a refrigeration cavity, the bottom of a flow guide piece 2 is inserted below the liquid level of the refrigeration cycle medium, the refrigerant absorbs heat from the outer side wall surface of a heat exchange tube 1 and is gasified, and then the gaseous refrigerant carries the lubricating oil in oil drops to climb along a climbing gap d and flow from bottom to top; and the refrigerant still exchanges heat with the heat exchange tube 1 in the climbing clearance d until the refrigerant in a gas state is output from the second refrigerant interface 42, and then the heat exchange process is completed.
The heat exchange unit provided by the embodiment is matched with the shell through the heat exchange mechanism, when the heat exchange unit is used as an evaporator, a refrigerant is fully boiled in the refrigeration cavity, the heat exchange efficiency is high, and meanwhile, oil return is convenient and reliable; and when used as a condenser, has the same function as a conventional shell-and-tube condenser.
Example 3
This embodiment provides a heat exchange device, which includes the heat exchange unit, the pressure feed unit, and the pumping unit in embodiment 2. The two ends of the pressure feeding unit are respectively communicated with a first refrigerant interface and a second refrigerant interface of the shell, and the pressure feeding unit is suitable for flowing in or flowing out of the refrigeration cycle medium into the refrigeration cavity; two ends of the pumping unit are respectively communicated with the first secondary refrigerant interface or the second secondary refrigerant interface of the shell, and the pumping unit is suitable for flowing the secondary cold medium into or out of the heat exchange tube. The compressor and the refrigeration cycle are the compressor and the refrigeration cycle in this embodiment.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (11)
1. A drainage mechanism is suitable for being matched with a heat exchange tube (1) to be installed, and is characterized by comprising:
the flow guide piece (2) extends along the length direction of the heat exchange tube (1); the flow guide piece (2) is provided with a flow guide surface (21) facing the outer side wall surface of the heat exchange tube (1), and the flow guide surface (21) is suitable for forming a climbing clearance (d) with the outer side wall surface of the heat exchange tube (1); the section of the flow guide surface (21) along the radial direction of the heat exchange tube (1) is a closed surface; the heat exchange tube is characterized in that the drainage piece (2) is of a tube body structure, the heat exchange tube (1) can be arranged on the inner side of the tube body structure in a penetrating way, and the inner wall surface of the tube body structure is a drainage surface (21);
the mounting piece (3), be equipped with a plurality of mounting holes on the mounting piece (3), body structure fixed mounting is in the mounting hole.
2. The drainage mechanism of claim 1,
the closed surface is square, circular or elliptical.
3. A drainage mechanism is suitable for being matched with a heat exchange tube (1) to be installed, and is characterized by comprising:
the flow guide piece (2) extends along the length direction of the heat exchange tube (1); the flow guide piece (2) is provided with a flow guide surface (21) facing the outer side wall surface of the heat exchange tube (1), and the flow guide surface (21) is suitable for forming a climbing clearance (d) with the outer side wall surface of the heat exchange tube (1);
the drainage piece (2) is of a plurality of sheet structures, the sheet structures are suitable for being arranged along the peripheral wall surface of the heat exchange tube (1), and the drainage surface (21) is an arc surface or a plane.
4. A heat exchange unit, characterized in that it comprises
A housing (4) having a refrigeration cavity adapted to circulate a refrigeration cycle medium;
the heat exchange mechanism is provided with a heat exchange tube (1), the heat exchange tube (1) is installed in the shell (4), and the heat exchange tube (1) is suitable for carrying a cold medium to circulate;
and the flow guide mechanism according to any one of claims 1 to 3, which is installed in the housing (4), wherein the flow guide surface (21) and the outer peripheral wall surface of the heat exchange tube (1) form a climbing clearance (d) suitable for climbing of the refrigeration cycle medium.
5. Heat exchange unit according to claim 4,
the device also comprises a first clapboard (5) and a second clapboard (6);
the first partition plate (5) and the second partition plate (6) are arranged in a shell, the first partition plate (5) and the shell (4) enclose a first cavity, and the second partition plate (6) and the shell (4) enclose a second cavity; the two ends of the heat exchange tube are connected with the first partition plate (5) and the second partition plate (6) to be communicated with the first cavity and the second cavity, and the first cavity and the second cavity are suitable for circulating the cold-carrying medium.
6. Heat exchange unit according to claim 5, characterised in that said first (5) and second (6) partitions are arranged in parallel.
7. Heat exchange unit according to any one of claims 4-6, characterised in that the mounting (3) of the flow guiding means is fixedly connected to the inner wall surface of the housing (4).
8. Heat exchange unit according to any one of claims 4 to 6,
the heat exchange tube (1) comprises a tube body and fin parts, wherein the fin parts are arranged on the inner peripheral wall surface or the outer peripheral wall surface of the tube body in a protruding structure.
9. Heat exchange unit according to any one of claims 4 to 6,
the heat exchange tube (1) is a threaded tube or a corrugated tube, or a checkered tube, or a pin tube, or a sintered tube, or a sand blasting tube, or a concave point tube.
10. A heat exchange apparatus comprising a heat exchange unit according to any one of claims 4 to 9.
11. The heat exchange apparatus of claim 10,
further comprising:
the two ends of the pressure feeding unit are respectively communicated with a first refrigerant interface (41) and a second refrigerant interface (42) of the shell (4), and the pressure feeding unit is suitable for flowing the refrigeration cycle medium into or out of the refrigeration cavity;
and two ends of the pumping unit are respectively communicated with the first secondary refrigerant interface (43) or the second secondary refrigerant interface (44) of the shell, and the pumping unit is suitable for flowing the secondary refrigerant into or out of the heat exchange tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120117885.9U CN215725287U (en) | 2021-01-15 | 2021-01-15 | Drainage mechanism, heat exchange unit and indirect heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120117885.9U CN215725287U (en) | 2021-01-15 | 2021-01-15 | Drainage mechanism, heat exchange unit and indirect heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215725287U true CN215725287U (en) | 2022-02-01 |
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ID=79985819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120117885.9U Active CN215725287U (en) | 2021-01-15 | 2021-01-15 | Drainage mechanism, heat exchange unit and indirect heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215725287U (en) |
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2021
- 2021-01-15 CN CN202120117885.9U patent/CN215725287U/en active Active
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