CN115654992A - Exhaust structure and heat exchanger - Google Patents

Exhaust structure and heat exchanger Download PDF

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Publication number
CN115654992A
CN115654992A CN202211390286.XA CN202211390286A CN115654992A CN 115654992 A CN115654992 A CN 115654992A CN 202211390286 A CN202211390286 A CN 202211390286A CN 115654992 A CN115654992 A CN 115654992A
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CN
China
Prior art keywords
pipe
liquid outlet
section
exhaust structure
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211390286.XA
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Chinese (zh)
Inventor
潘梦涵
徐耀挺
卢道枫
裘佳乐
梁伟标
许敏峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yinlun New Energy Thermal Management System Co ltd
Zhejiang Yinlun Machinery Co Ltd
Original Assignee
Zhejiang Yinlun New Energy Thermal Management System Co ltd
Zhejiang Yinlun Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Zhejiang Yinlun New Energy Thermal Management System Co ltd, Zhejiang Yinlun Machinery Co Ltd filed Critical Zhejiang Yinlun New Energy Thermal Management System Co ltd
Priority to CN202211390286.XA priority Critical patent/CN115654992A/en
Publication of CN115654992A publication Critical patent/CN115654992A/en
Priority to PCT/CN2023/081290 priority patent/WO2024098610A1/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/26Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The utility model relates to an exhaust structure and heat exchanger, exhaust structure includes first pressure manifold, breathing pipe and drain pipe, first pressure manifold sets up along vertical direction, the drain pipe is located between the top of first pressure manifold and the bottom and communicates first pressure manifold, liquid outlet direction along the drain pipe, the internal diameter of drain pipe is the trend that reduces gradually earlier and then crescent, the one end of breathing pipe is located in first pressure manifold and is extended to the top of first pressure manifold along vertical direction, the other end of breathing pipe extends to the minimum position of drain pipe internal diameter and feeds through the drain pipe. The application provides an exhaust structure and heat exchanger has solved current exhaust mode and has leaded to the heat exchanger increase of volume and then influence the problem of heat exchanger installation.

Description

Exhaust structure and heat exchanger
Technical Field
The application relates to the technical field of heat exchangers, in particular to an exhaust structure and a heat exchanger.
Background
Generally, a heat exchanger uses a refrigerant as a medium for heat exchange, and since a large amount of air exists inside the heat exchanger, the heat exchanger needs to discharge excess gas inside during the process of filling the refrigerant. In addition, since the gas density is low, an exhaust pipe is usually disposed at the highest position of the heat exchanger to exhaust the gas in the heat exchanger, but the installation of the heat exchanger in the vehicle is affected by the increase of the volume of the heat exchanger due to the arrangement of the exhaust pipe.
Disclosure of Invention
Based on this, it is necessary to provide an exhaust structure and a heat exchanger, and solve the problem that the existing exhaust mode leads to the increase of the heat exchanger volume and then influences the installation of the heat exchanger.
The application provides an exhaust structure includes first pressure manifold, breathing pipe and drain pipe, first pressure manifold sets up along vertical direction, the drain pipe is located between the top and the bottom of first pressure manifold and is fed through first pressure manifold, along the play liquid direction of drain pipe, the internal diameter of drain pipe is the trend that reduces gradually earlier and then crescent, the one end of breathing pipe is located in first pressure manifold and is extended to the top of first pressure manifold along vertical direction, the other end of breathing pipe extends to the position and the intercommunication drain pipe that the drain pipe internal diameter is minimum.
In one embodiment, the exhaust structure further comprises a suspension lantern ring, the suspension lantern ring is sleeved at one end, extending into the first collecting pipe, of the air suction pipe and is movably matched with the outer wall of the air suction pipe in a sealing mode, the density p of the suspension lantern ring and the density q of fluid in the first collecting pipe meet the requirement that p is more than or equal to 0.99q and is less than q, one end, extending towards the top of the first collecting pipe, of the air suction pipe is vertically arranged, and the thickness of the suspension lantern ring in the vertical direction is larger than the distance between the top of the air suction pipe and the highest point in the first collecting pipe. It can be understood that the arrangement is such that the gas in the first collecting pipe can be completely discharged, and the liquid in the first collecting pipe can not enter the suction pipe, so as to effectively avoid the gas residue in the first collecting pipe.
In one embodiment, the drain pipe comprises a contraction section and an expansion section which are sequentially communicated along the liquid outlet direction, the inner diameter of the contraction section gradually becomes smaller and the inner diameter of the expansion section gradually becomes larger along the liquid outlet direction of the drain pipe, and the inclination degree of the inner wall of the contraction section relative to the axis of the drain pipe is larger than that of the inner wall of the expansion section relative to the axis of the drain pipe. It can be appreciated that such an arrangement may allow the length of the constriction to be reduced, thereby reducing the length of the entire outlet pipe and thus the volume of the venting structure. And, so set up, can avoid liquid to form backward flow vortex at the expansion section, lead to producing the turbulent flow in the drain pipe.
In one embodiment, the inner wall of the contraction section extends linearly or curvilinearly along the outlet direction of the liquid outlet pipe.
And/or the inner wall of the contraction section extends linearly or curvedly along the liquid outlet direction of the liquid outlet pipe.
In one embodiment, the inner wall of the liquid outlet pipe is provided with a clamping groove, one end part of the air suction pipe extending into the liquid outlet pipe is clamped into the clamping groove, and the axis of one end of the air suction pipe extending into the liquid outlet pipe is a tangent line of the inner wall at the joint of the contraction section and the expansion section. It will be appreciated that this arrangement allows gas in the first manifold to be drawn into the outlet pipe more quickly.
In one embodiment, the clamping groove is formed in the top of the liquid outlet pipe. It will be appreciated that this arrangement minimises the volume occupied by the suction pipe in the outlet pipe, which interferes with the flow of liquid in the outlet pipe.
In one embodiment, the liquid outlet pipe further comprises a first straight pipe section, a second straight pipe section and a third straight pipe section, and the first collecting pipe, the first straight pipe section, the contraction section, the third straight pipe section, the expansion section and the second straight pipe section are sequentially communicated along the liquid outlet direction. It can be understood that the arrangement reduces the difficulty in assembling the liquid outlet pipe, the first collecting pipe and the external pipeline.
In one of the embodiments, the first and second electrodes are, the vertical height H of the liquid outlet pipe and the total height H of the first collecting pipe in the vertical direction are met, and 0.2H is formed by the layers of the materials which are all woven into a layer of 0.5H. It will be appreciated that this arrangement greatly enhances the rate at which the suction duct discharges gas from within the first collector.
In one of the embodiments, H =0.3H.
The application also provides a heat exchanger, which comprises a liquid inlet pipe, a second collecting pipe, a core body and the exhaust structure as in any one of the above embodiments, wherein the liquid inlet pipe is arranged between the top and the bottom of the second collecting pipe and communicated with the second collecting pipe, and the core body is arranged between the first collecting pipe and the second collecting pipe and communicated with the first collecting pipe and the second collecting pipe.
Compared with the prior art, the application provides an exhaust structure and heat exchanger, because along the play liquid direction of drain pipe, the internal diameter of drain pipe is the trend that reduces gradually again gradually earlier, consequently, when liquid gets into the drain pipe from first pressure manifold and flows along the play liquid direction of drain pipe, the earlier grow of the velocity of flow of liquid diminishes again to, in the minimum position of drain pipe internal diameter, the velocity of flow of liquid reaches the biggest. As can be seen from the venturi effect, a low pressure is created near a high velocity flowing fluid, including but not limited to a liquid in this document, thereby creating an adsorption effect. And the gas at the top of the first header is pressed by the liquid. Therefore, by arranging the air suction pipe, the gas at the top of the first collecting pipe can be sucked into the liquid outlet pipe through the air suction pipe and taken away by the liquid in the liquid outlet pipe. Because the one end of breathing pipe is located in first mass flow, in the liquid outlet pipe was located to the other end, consequently, set up the breathing pipe and can not increase exhaust structure and even the volume of whole heat exchanger, so, not only can effectively discharge the gas in the heat exchanger, can also avoid the heat exchanger volume too big to lead to the heat exchanger installation difficulty.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present disclosure;
FIG. 2 is an exploded view of a heat exchanger according to an embodiment provided herein;
FIG. 3 is a schematic view of a portion of an exhaust structure according to an embodiment of the present disclosure;
FIG. 4 is an enlarged view taken at A of FIG. 3;
FIG. 5 is an enlarged view at B of FIG. 3;
FIG. 6 is a cross-sectional view of a venting structure at an outlet pipe according to an embodiment of the present disclosure;
FIG. 7 is a partial cross-sectional view of an exhaust structure according to an embodiment provided herein.
Reference numerals: 100. a first header; 200. an air intake duct; 210. a rotation-stopping slope; 220. a snap ring; 300. a liquid outlet pipe; 310. a contraction section; 311. a card slot; 320. an expansion section; 330. a first straight pipe section; 340. a second straight tube section; 350. a third straight tube section; 400. a stopper head; 410. a communicating groove; 500. buckling; 600. a liquid inlet pipe; 700. a second header; 800. a core body.
Detailed Description
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Generally, a heat exchanger uses a refrigerant as a medium for heat exchange, and since a large amount of air exists inside the heat exchanger, the heat exchanger needs to discharge excess gas inside during the process of filling the refrigerant. In addition, since the gas density is low, an exhaust pipe is usually disposed at the highest position of the heat exchanger to exhaust the gas in the heat exchanger, but the installation of the heat exchanger in the vehicle is affected by the increase of the volume of the heat exchanger due to the arrangement of the exhaust pipe.
Referring to fig. 1 to 7, in order to solve the problem that the volume of the heat exchanger is increased and the installation of the heat exchanger is affected by the conventional exhaust method, the present application provides an exhaust structure, which includes a first collecting pipe 100, an air suction pipe 200 and a liquid discharge pipe 300, wherein the first collecting pipe 100 is disposed along a vertical direction, the liquid discharge pipe 300 is disposed between the top and the bottom of the first collecting pipe 100 and is communicated with the first collecting pipe 100, along a liquid discharge direction of the liquid discharge pipe 300, an inner diameter of the liquid discharge pipe 300 tends to decrease gradually and then increase gradually, one end of the air suction pipe 200 is disposed in the first collecting pipe 100 and extends to the top of the first collecting pipe 100 along the vertical direction, and the other end of the air suction pipe 200 extends to a position where the inner diameter of the liquid discharge pipe 300 is minimum and is communicated with the liquid discharge pipe 300.
Since the inner diameter of liquid outlet pipe 300 tends to decrease and then increase along the liquid outlet direction of liquid outlet pipe 300, when liquid enters liquid outlet pipe 300 from first collecting pipe 100 and flows along the liquid outlet direction of liquid outlet pipe 300, the flow rate of liquid increases and then decreases, and the flow rate of liquid reaches the maximum at the position where the inner diameter of liquid outlet pipe 300 is the minimum. As can be seen from the venturi effect, a low pressure is generated near the high-speed flowing fluid, so that an adsorption effect is generated, and the gas at the top of the first collecting pipe 100 is squeezed by the liquid. Thus, by providing the suction pipe 200, the gas at the top of the first header 100 can be sucked into the liquid outlet pipe 300 through the suction pipe 200 and carried away by the liquid in the liquid outlet pipe 300. Because the one end of breathing pipe 200 is located in first pressure manifold 100, the other end is located in drain pipe 300, consequently, set up breathing pipe 200 and can not increase exhaust structure and even the volume of whole heat exchanger, so, not only can effectively discharge the gas in the heat exchanger, can also avoid the heat exchanger volume too big to lead to the heat exchanger installation difficulty.
It is emphasized that, in this specification, a fluid includes, but is not limited to, a refrigerant.
Specifically, the suction pipe 200 is L-shaped as a whole.
In one embodiment, as shown in fig. 6, the liquid outlet pipe 300 comprises a contraction section 310 and an expansion section 320 which are sequentially communicated along the liquid outlet direction, and along the liquid outlet direction of the liquid outlet pipe 300, the inner diameter of the contraction section 310 is gradually reduced, the inner diameter of the expansion section 320 is gradually increased, and the inclination degree of the inner wall of the contraction section 310 relative to the axis of the liquid outlet pipe 300 is larger than that of the inner wall of the expansion section 320 relative to the axis of the liquid outlet pipe 300.
It should be noted that the degree of inclination of the inner wall of the contracting section 310 with respect to the axis of the outlet pipe 300 is greater than the degree of inclination of the inner wall of the expanding section 320 with respect to the axis of the outlet pipe 300, which means that the contracting amplitude of the inner diameter of the contracting section 310 is more severe and the expanding amplitude of the inner diameter of the expanding section 320 is more gradual.
So configured, the length of the constriction 310 can be reduced, thereby reducing the length of the entire outlet tube 300 and reducing the volume of the exhaust structure. Moreover, by such an arrangement, the liquid can be prevented from forming a backflow vortex at the expansion section 320, which leads to a turbulent flow in the liquid outlet pipe 300.
Specifically, in one embodiment, the inner wall of the contracting section 310 may extend linearly or curve along the outlet direction of the outlet pipe 300, and similarly, the inner wall of the expanding section 320 may extend linearly or curve along the outlet direction of the outlet pipe 300.
In one embodiment, as shown in fig. 6 and 7, the inner wall of the liquid outlet pipe 300 is provided with a locking groove 311, a portion of the end of the air suction pipe 200 extending into the liquid outlet pipe 300 is locked in the locking groove 311, and an axis of the end of the air suction pipe 200 extending into the liquid outlet pipe 300 is a tangent of the inner wall at the junction of the contraction section 310 and the expansion section 320.
The suction force is strongest at the inner wall where the convergent section 310 and divergent section 320 are connected, and thus, the gas in the first header 100 is sucked into the outlet pipe 300 more quickly. In addition, the clamping groove 311 is arranged to prevent the air suction pipe 200 from rotating in the liquid outlet pipe 300, thereby improving the stability of the air exhaust structure.
Further, in one embodiment, slot 311 is disposed at a top portion of effluent pipe 300.
Thus, the volume occupied by the air suction pipe 200 in the liquid outlet pipe 300 can be minimized, and the interference of the air suction pipe 200 on the flow of the liquid in the liquid outlet pipe 300 can be avoided. Moreover, by such an arrangement, the gas can be prevented from continuously floating up in the liquid outlet pipe 300 to cause gas to flow back into the first collecting pipe 100.
Further, in an embodiment, as shown in fig. 6, the outlet pipe 300 further includes a first straight pipe section 330, a second straight pipe section 340, and a third straight pipe section 350, and the first header 100, the first straight pipe section 330, the contraction section 310, the third straight pipe section 350, the expansion section 320, and the second straight pipe section 340 are sequentially communicated along the outlet direction.
Thus, the liquid outlet pipe 300 can be assembled on the first collecting pipe 100 through the first straight pipe section 330, and the liquid outlet pipe 300 can be assembled on an external pipeline through the second straight pipe section 340.
In order to increase the discharge rate of the gas in the first header 100, in an embodiment, the vertical height H of the liquid outlet pipe 300 and the total height H of the first header 100 in the vertical direction are satisfied, and 0.2h is made of "H" s and 0.5h.
Due to the existence of gravity, the falling speed of the liquid in the first collecting pipe 100 is higher than the rising speed of the liquid in the first collecting pipe 100, and a large number of simulation experiments show that the intersection point of the falling liquid and the rising liquid in the first collecting pipe 100 is between the height of one fifth and one half of the first collecting pipe 100, and the falling liquid and the rising liquid enter the liquid inlet pipe 600 immediately after the intersection, the loss of kinetic energy of the liquid in the first collecting pipe 100 is minimum, that is, the vertical height of the liquid outlet pipe 300 is set between the height of one fifth and one half of the first collecting pipe 100, so that the loss of kinetic energy of the liquid in the first collecting pipe 100 is minimum, that is, the liquid in the liquid outlet pipe 300 can obtain the maximum flow speed. On the contrary, if the descending liquid and the ascending liquid cannot enter the liquid outlet pipe 300 immediately after meeting, the meeting liquid needs to continue ascending or descending, and thus the meeting liquid may continue to collide with the ascending liquid or the descending liquid before entering the liquid outlet pipe 300, and at this time, the kinetic energy of the liquid in the first collecting pipe 100 will be further lost. In summary, it can be seen that the flow rate of the liquid in the liquid outlet pipe 300 can be maximized, that is, the pressure difference between the gas at the top of the first collecting pipe 100 and the fluid at the minimum inner diameter of the liquid inlet pipe 600 can be maximized, that is, the gas discharging rate of the gas in the first collecting pipe 100 by the gas suction pipe 200 is greatly enhanced.
Further, in an embodiment, H =0.3H.
To further increase the discharge rate of the gas in the first header 100, in an embodiment, the inner wall of the suction pipe 200 is provided with a spiral groove (not shown) to allow the gas to be screwed into the liquid outlet pipe along the spiral groove.
Under the action of the rotating deviation force, the gas enters the gas suction pipe 200 from one end of the gas suction pipe 200 close to the top of the first collecting pipe 100 and then forms a vortex along the spiral groove, if in the northern hemisphere, the vortex rotates anticlockwise under the action of the rotating deviation force, and if in the southern hemisphere, the vortex rotates clockwise under the action of the rotating deviation force, so that the rotating deviation force can play a role in enhancing the vortex of the gas in the gas suction pipe 200, the flow rate of the gas in the gas suction pipe 200 is increased, and the discharge rate of the gas in the first collecting pipe 100 is further increased.
Specifically, in one embodiment, the inner wall of the air suction pipe 200 is provided with a spiral protrusion (not shown), and a spiral groove is formed between the adjacent spiral protrusion and the inner wall of the air suction pipe 200.
Therefore, the processing difficulty of the spiral groove is greatly reduced.
In an embodiment, as shown in fig. 4, one end of the air suction pipe 200 extending to the top of the first collecting pipe 100 is provided with a rotation stopping inclined surface 210, the top of the first collecting pipe 100 is provided with a stopping head 400 corresponding to the rotation stopping inclined surface 210, and the stopping head 400 stops at two ends of the rotation stopping inclined surface 210 along the circumferential direction of the air suction pipe 200 to prevent the air suction pipe 200 from rotating around its axis.
Thus, the air suction pipe 200 can be prevented from rotating around the axis thereof, and the assembling firmness of the exhaust structure is greatly improved.
Specifically, in an embodiment, the stopper head 400 is provided with a matching inclined surface (not shown) corresponding to the rotation stop inclined surface 210, and the stopper head 400 is correspondingly attached to the rotation stop inclined surface 210 through the matching inclined surface.
In this way, the fitting tightness of the stopper head 400 and the air suction pipe 200 is improved.
Further, in an embodiment, as shown in fig. 4, the stopper head 400 is provided with a communication groove 410, the communication groove 410 includes a first opening provided at the bottom of the stopper head 400 and a second opening provided at the side of the stopper head 400, the communication groove 410 communicates with the suction pipe 200 through the first opening, and the communication groove 410 communicates with the first collecting pipe 100 through the second opening.
Thus, the stopper 400 is prevented from affecting the suction pipe 200 to suck the gas in the first collecting pipe 100.
In an embodiment, as shown in fig. 3 and 5, the exhaust structure further includes a plurality of buckles 500, one end of the buckle 500 is detachably connected to the inner wall of the first collecting pipe 100, the other end is buckled to the outer wall of the air suction pipe 200, and the plurality of buckles 500 are arranged at intervals along the extending direction of the air suction pipe 200.
Therefore, the suction pipe 200 is prevented from shaking in the first collecting pipe 100, and the stability of the exhaust structure is improved.
Further, in an embodiment, as shown in fig. 5, the outer wall of the air suction pipe 200 is provided with a plurality of snap rings 220, and the snap rings 220 are stopped at both sides of the buckle 500 along the extending direction of the air suction pipe 200.
In this way, the suction pipe 200 is prevented from moving up and down in the first header 100.
In this embodiment, the catch 500 may also cooperate with the stopper head 400 to limit the up and down movement of the air suction pipe 200.
Generally, if the distance between the end of the air suction pipe 200 extending to the top of the first collecting pipe 100 and the top end face of the first collecting pipe 100 is too large, liquid is sucked into the air suction pipe 200, and a large amount of gas at the top of the first collecting pipe 100 cannot be discharged, otherwise, if the distance between the end of the air suction pipe 200 extending to the top of the first collecting pipe 100 and the top end face of the first collecting pipe 100 is too small, the gas at the top of the first collecting pipe 100 is difficult to be sucked into the air suction pipe 200, and the gas discharge efficiency is too low.
In order to solve the problem that the distance between the end of the air suction pipe 200 extending to the top of the first collecting pipe 100 and the top end face of the first collecting pipe 100 is difficult to control, in an embodiment, the exhaust structure further includes a suspension collar (not shown), the suspension collar is sleeved on one end of the air suction pipe 200 extending into the first collecting pipe 100 and is in movable sealing fit with the outer wall of the air suction pipe 200, the density p of the suspension collar and the density q of fluid in the first collecting pipe 100 meet the requirement that p is not less than 0.99q and is less than q, the end of the air suction pipe 200 extending towards the top of the first collecting pipe 100 is vertically arranged, and the thickness of the suspension collar along the vertical direction is greater than the distance between the top of the air suction pipe 200 and the highest point in the first collecting pipe 100.
Because the one end that breathing pipe 200 extends towards first pressure manifold 100 top sets up vertically to, the suspension lantern ring cover is located the one end that breathing pipe 200 stretched into first pressure manifold 100 and is in clearance fit with the outer wall of breathing pipe 200, consequently, the suspension lantern ring can reciprocate along the extending direction of breathing pipe 200. And because the density p of the suspension lantern ring and the density q of the fluid in the first collecting pipe 100 meet the requirement that p is more than or equal to 0.99q and less than q, the suspension lantern ring can be suspended in the liquid, and the top of the suspension lantern ring is slightly higher than the liquid level of the liquid. As the gas in the first header 100 is gradually discharged, the liquid level of the liquid in the first header 100 gradually rises, and at this time, the floating collar also gradually moves toward the top of the intake pipe 200 along the extending direction of the intake pipe 200. Because the thickness of the suspension collar along the vertical direction is greater than the distance between the top of the air suction pipe 200 and the highest point in the first collecting pipe 100, when the liquid level in the first collecting pipe 100 is higher than the top of the air suction pipe 200, the highest point of the suspension collar will also rise to a position higher than the top of the air suction pipe 200 along with the liquid level of the liquid, and the suspension collar is movably and hermetically matched with the outer wall of the air suction pipe 200 in combination with the suspension collar, at this time, the liquid cannot enter the air suction pipe 200, that is, the air sucked into the first collecting pipe 100 by the air suction pipe 200 is still the air in the first collecting pipe 100, that is, the residual air in the first collecting pipe 100 will continue to enter the air suction pipe 200 through the suspension collar until the air in the first collecting pipe 100 is completely discharged, and at this time, the suspension collar rises to the topmost part of the first collecting pipe 100.
As can be seen from the above, by providing the suspension collar, the gas in the first collecting pipe 100 can be completely discharged, and the liquid in the first collecting pipe 100 does not enter the air suction pipe 200, thereby effectively avoiding the gas remaining in the first collecting pipe 100.
Referring to fig. 1 and 2, the present application further provides a heat exchanger, which includes a liquid inlet pipe 600, a second header 700, a core 800 and the exhaust structure as described in the above embodiments, wherein the liquid inlet pipe 600 is disposed between the top and the bottom of the second header 700 and is communicated with the second header 700, and the core 800 is disposed between the first header 100 and the second header 700 and is communicated with the first header 100 and the second header 700.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims (10)

1. The utility model provides an exhaust structure, its characterized in that, exhaust structure includes first pressure manifold (100), breathing pipe (200) and drain pipe (300), first pressure manifold (100) sets up along vertical direction, drain pipe (300) are located between the top of first pressure manifold (100) and the bottom and communicate first pressure manifold (100), along the play liquid direction of drain pipe (300), the internal diameter of drain pipe (300) is the trend that reduces gradually earlier then increases gradually, the one end of breathing pipe (200) is located in first pressure manifold (100) and extend to along vertical direction the top of first pressure manifold (100), the other end of breathing pipe (200) extends to the position that drain pipe (300) internal diameter is minimum and communicate drain pipe (300).
2. The exhaust structure according to claim 1, further comprising a suspension collar, wherein the suspension collar is sleeved on one end of the air suction pipe (200) extending into the first collecting pipe (100) and is in movable sealing fit with the outer wall of the air suction pipe (200), and a density p of the suspension collar and a density q of fluid in the first collecting pipe (100) satisfy that p is greater than or equal to 0.99q and less than q, the end of the air suction pipe (200) extending towards the top of the first collecting pipe (100) is vertically arranged, and a thickness of the suspension collar along a vertical direction is greater than a distance between the top of the air suction pipe (200) and a highest point in the first collecting pipe (100).
3. The exhaust structure according to claim 1, wherein the liquid outlet pipe (300) comprises a contraction section (310) and an expansion section (320) which are sequentially communicated along a liquid outlet direction, and along the liquid outlet direction of the liquid outlet pipe (300), the inner diameter of the contraction section (310) is gradually reduced, the inner diameter of the expansion section (320) is gradually increased, and the inclination degree of the inner wall of the contraction section (310) relative to the axis of the liquid outlet pipe (300) is larger than that of the expansion section (320).
4. The venting structure as claimed in claim 3, wherein the inner wall of the constriction (310) extends linearly or curvilinearly in the liquid outlet direction of the liquid outlet pipe (300);
and/or the inner wall of the contraction section (310) extends linearly or curvilinearly along the liquid outlet direction of the liquid outlet pipe (300).
5. Exhaust structure according to claim 3, characterized in that the inner wall of the liquid outlet pipe (300) is provided with a locking groove (311), a part of the end of the air suction pipe (200) extending into the liquid outlet pipe (300) is locked into the locking groove (311), and the axis of the end of the air suction pipe (200) extending into the liquid outlet pipe (300) is tangent to the inner wall at the junction of the contraction section (310) and the expansion section (320).
6. Exhaust structure according to claim 5, characterized in that the clamping groove (311) is provided at the top of the outlet pipe (300).
7. An exhaust structure according to claim 3, characterized in that the outlet pipe (300) further comprises a first straight pipe section (330), a second straight pipe section (340) and a third straight pipe section (350), and the first collecting pipe (100), the first straight pipe section (330), the contraction section (310), the third straight pipe section (350), the expansion section (320) and the second straight pipe section (340) are sequentially communicated along a liquid outlet direction.
8. The exhaust structure according to claim 1, wherein a vertical height H of the liquid outlet pipe (300) and a total height H of the first header (100) in a vertical direction satisfy 0.2h-and-H-and-0.5h.
9. The exhaust structure according to claim 8, wherein H =0.3H.
10. A heat exchanger, comprising a liquid inlet pipe (600), a second header (700), a core (800) and the exhaust structure according to any one of claims 1 to 9, wherein the liquid inlet pipe (600) is disposed between the top and the bottom of the second header (700) and communicates with the second header (700), and the core (800) is disposed between the first header (100) and the second header (700) and communicates the first header (100) and the second header (700).
CN202211390286.XA 2022-11-08 2022-11-08 Exhaust structure and heat exchanger Pending CN115654992A (en)

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PCT/CN2023/081290 WO2024098610A1 (en) 2022-11-08 2023-03-14 Exhaust structure and heat exchanger

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Cited By (1)

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WO2024098610A1 (en) * 2022-11-08 2024-05-16 浙江银轮机械股份有限公司 Exhaust structure and heat exchanger

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JP6057154B2 (en) * 2012-09-28 2017-01-11 パナソニックIpマネジメント株式会社 Heat exchanger
US10648746B2 (en) * 2014-01-30 2020-05-12 Calsonic Kansei Corporation Exhaust waste heat recovery device
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CN115654992A (en) * 2022-11-08 2023-01-31 浙江银轮机械股份有限公司 Exhaust structure and heat exchanger

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024098610A1 (en) * 2022-11-08 2024-05-16 浙江银轮机械股份有限公司 Exhaust structure and heat exchanger

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