CN112240725A - Turbulence piece for heat exchange device, heat exchange device with turbulence piece and gas water heater with turbulence piece - Google Patents

Turbulence piece for heat exchange device, heat exchange device with turbulence piece and gas water heater with turbulence piece Download PDF

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Publication number
CN112240725A
CN112240725A CN201910649664.3A CN201910649664A CN112240725A CN 112240725 A CN112240725 A CN 112240725A CN 201910649664 A CN201910649664 A CN 201910649664A CN 112240725 A CN112240725 A CN 112240725A
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CN
China
Prior art keywords
heat exchange
exchange tube
fixing
exchange device
spoiler
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Pending
Application number
CN201910649664.3A
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Chinese (zh)
Inventor
杨万沔
李晓强
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.)
Midea Group Co Ltd
Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
Original Assignee
Midea Group Co Ltd
Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Filing date
Publication date
Application filed by Midea Group Co Ltd, Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd filed Critical Midea Group Co Ltd
Priority to CN201910649664.3A priority Critical patent/CN112240725A/en
Publication of CN112240725A publication Critical patent/CN112240725A/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
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/24Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates

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

Abstract

The embodiment of the invention discloses a turbulence piece for a heat exchange device, the heat exchange device with the turbulence piece and a gas water heater with the heat exchange device, wherein the turbulence piece is arranged in a heat exchange tube and comprises a body, the outer wall surface of the body and the inner wall surface of the heat exchange tube are arranged at intervals to define a heat exchange flow channel, the heat exchange flow channel is communicated with a water inlet and a water outlet of the heat exchange tube, a spiral groove or a spiral bulge is arranged on the outer wall surface of the body, and the spiral groove or the spiral bulge extends spirally along the axial direction of the heat. According to the flow disturbing piece for the heat exchange device, disclosed by the embodiment of the invention, the fluid can be prevented from being vaporized in the heat exchange tube, and the stability of the fluid flowing in the heat exchange tube is favorably improved.

Description

Turbulence piece for heat exchange device, heat exchange device with turbulence piece and gas water heater with turbulence piece
Technical Field
The invention relates to the technical field of heat exchange, in particular to a flow disturbing piece for a heat exchange device, the heat exchange device with the flow disturbing piece and a gas water heater with the flow disturbing piece.
Background
The related art provides a spoiler for a gas water heater, and the spoiler forms a spiral waterway in a straight pipe by arranging a plurality of spoiler structures on a bottom plate. However, the bottom sheet is of a flat plate structure, and the continuity of the spiral waterway is poor, so that the flow velocity of fluid is not stable enough in the process of flowing of the fluid in the straight pipe, and the stability of heat exchange is influenced.
Disclosure of Invention
The embodiment of the invention provides a spoiler for a heat exchange device, the heat exchange device with the spoiler and a gas water heater, and aims to solve one or more technical problems in the prior art.
According to the turbulent flow member for the heat exchange device, the turbulent flow member is arranged in the heat exchange tube and comprises a body, the outer wall surface of the body and the inner wall surface of the heat exchange tube are arranged at intervals to define a heat exchange flow channel, the heat exchange flow channel is communicated with the water inlet and the water outlet of the heat exchange tube, a spiral groove or a spiral protrusion is arranged on the outer wall surface of the body, and the spiral groove or the spiral protrusion extends spirally along the axial direction of the heat exchange tube.
According to the flow disturbing piece for the heat exchange device, disclosed by the embodiment of the invention, the fluid can be prevented from being vaporized in the heat exchange tube, and the stability of the fluid flowing in the heat exchange tube is favorably improved.
In addition, the spoiler according to the above embodiment of the present invention may further include the following additional technical features:
according to some embodiments of the invention, the body is configured as a cylinder or an elliptic cylinder.
According to some embodiments of the invention, the spoiler further comprises a fixing portion connected to an end portion of the body, and the fixing portion is clamped on an inner wall surface of the heat exchange tube.
According to some examples of the invention, the fixing parts are two and respectively arranged at two ends of the body, each fixing part comprises a plurality of fixing limbs extending along the axial direction of the heat exchange tube, the fixing limbs are distributed at intervals along the circumferential direction of the heat exchange tube, and a part of the outer surface of each fixing limb abuts against the inner wall surface of the heat exchange tube.
Optionally, an access recess is defined between adjacent ones of the fixation limbs.
Optionally, each of the fixation portions comprises two of the fixation limbs, and a distance between the two fixation limbs is greater than a diameter of the body.
Further, the fixed part still includes the linkage segment, the linkage segment connect in the one end of body, the linkage segment is followed the radial extension of heat exchange tube, two the fixed limb connect respectively in the length direction's of linkage segment both ends.
According to some examples of the invention, the body has a diameter greater than a width of the fixation portion, and an end of the body is provided with a transition section connected to the fixation portion, wherein the width of the transition section is gradually reduced in a direction toward the fixation portion.
Optionally, the length of the transition section gradually increases in a direction towards the fixing portion.
According to some embodiments of the invention, the retainer is integral with the body.
According to some embodiments of the invention, a ratio of the diameter of the body to the minimum diameter of the heat exchange tube is 0.2 or more and 0.4 or less.
According to some embodiments of the invention, a pitch of the spiral groove or the spiral protrusion is 3 mm or more and 10 mm or less.
According to the second aspect of the invention, the heat exchange device comprises: the heat exchange tubes are arranged side by side, and the heat exchange tubes are sequentially communicated end to form a water channel; the heat exchange device comprises a heat exchange tube, a spoiler, a heat exchanger and a heat exchanger, wherein the spoiler is used for the heat exchange device according to the embodiment of the first aspect of the invention and is provided with a plurality of heat exchange tubes in one-to-one correspondence.
According to the heat exchange device provided by the embodiment of the invention, the flow disturbing piece for the heat exchange device provided by the embodiment of the first aspect of the invention has the advantages of high heat exchange efficiency, good heat exchange stability, capability of preventing fluid from being vaporized in the process of flowing in the heat exchange tube and the like.
The gas water heater according to the embodiment of the third aspect of the invention comprises the heat exchange device according to the embodiment of the second aspect of the invention.
According to the gas water heater provided by the embodiment of the invention, the heat exchange device provided by the embodiment of the second aspect of the invention has the advantages of high heating efficiency, good stability and the like.
The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will be readily apparent by reference to the drawings and following detailed description.
Drawings
In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope. Wherein:
FIG. 1 is a schematic structural view of a spoiler in accordance with an embodiment of the present invention;
FIG. 2 is a side view of a spoiler in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heat exchange device according to an embodiment of the present invention;
FIG. 4 is a schematic view of a partial structure of a heat exchange device according to an embodiment of the present invention;
fig. 5 is a side view of a partial structure of a heat exchange device according to an embodiment of the present invention.
Reference numerals:
a heat exchange unit 1000;
a spoiler 100;
a body 10; a heat exchange flow channel 10 a; a spiral groove 11; a transition section 12;
a fixed portion 20; a stationary limb 21; a first stationary limb 21 a; a second stationary limb 21 b; a connecting section 22;
a heat exchange pipe 200; a water inlet 200 a; a water outlet 200 b;
an end cap 300;
a water inlet pipe 400;
a water outlet pipe 500;
a housing 600.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
A spoiler 100 for a heat exchanging device 1000 according to an embodiment of the first aspect of the present invention will be described with reference to fig. 1 and 2.
As shown in fig. 1 and 2, a spoiler 100 for a heat exchanging device 1000 according to an embodiment of the present invention is provided inside a heat exchanging pipe 200.
Specifically, the spoiler 100 includes a body 10, an outer wall surface of the body 10 and an inner wall surface of the heat exchange tube 200 are spaced apart to define a heat exchange flow channel 10a, the heat exchange flow channel 10a communicates with a water inlet 200a and a water outlet 200b of the heat exchange tube 200, wherein the outer wall surface of the body 10 is provided with a spiral groove 11 or a spiral protrusion (not shown in the figure), and the spiral groove 11 or the spiral protrusion spirally extends along an axial direction of the heat exchange tube 200.
It should be noted that the spiral groove 11 or the spiral protrusion refers to a structure which surrounds the body 10 and spirally extends in a direction from the water inlet 200a to the water outlet 200b of the heat exchange pipe 200. In the direction from the water inlet 200a to the water outlet 200b, the spiral direction of the spiral groove 11 or the spiral protrusion may be clockwise or counterclockwise.
In some specific examples of the present invention, as shown in fig. 1 and 2, the outer wall surface of the spoiler 100 is provided with a spiral groove 11, and the spiral groove 11 and the inner wall surface of the heat exchange pipe 200 define a heat exchange flow channel 10 a. That is, the spiral groove 11 is formed by inwardly recessing the outer wall surface of the body 10, and the spiral groove 11 surrounds the body 10 in the circumferential direction of the body 10 and spirally extends, and the heat exchange flow channel 10a is defined by the spiral groove 11 and the inner wall surface of the heat exchange tube 200.
In other embodiments of the present invention, the outer wall surface of the spoiler 100 is provided with a spiral protrusion defining the heat exchange flow channel 10a together with the inner wall surface of the heat exchange pipe 200. That is, the spiral protrusion is formed by outwardly protruding the outer wall surface of the body 10, and the spiral protrusion spirally extends around the body 10 along the circumferential direction of the body 10, and the heat exchange flow channel 10a is defined by the spiral protrusion and the inner wall surface of the heat exchange tube 200.
According to the flow disturbing member 100 provided by the embodiment of the invention, the flow disturbing member 100 is arranged in the heat exchange tube 200, the heat exchange flow channel 10a is defined between the outer surface of the flow disturbing member 100 and the inner wall surface of the heat exchange tube 200, and when fluid flows in the heat exchange tube 200, vortex can be formed when the fluid passes through the spiral groove 11 or the spiral protrusion, so that the flow velocity of the fluid is improved, the condition that the fluid is vaporized due to too low flow velocity of the fluid is avoided, the noise generated by the vaporization of the fluid can be avoided, meanwhile, the flow path of the fluid can be prolonged, and the heat exchange efficiency is improved.
In some embodiments of the present invention, the body 10 is configured in a cylindrical or elliptical-cylindrical shape.
It is understood that the cross-sectional shape of the body 10 is circular or elliptical, and the cross-sectional diameter or the cross-sectional major axis of the body 10 is smaller than the cross-sectional minimum diameter of the heat exchange tube 200. In the embodiment of the present invention, the cross-sectional shape of the heat exchange pipe 200 may be circular or elliptical, and when the cross-sectional shape of the heat exchange pipe 200 is circular, the cross-sectional diameter or the cross-sectional major axis of the body 10 is smaller than the cross-sectional diameter of the heat exchange pipe 200; when the cross-sectional shape of the heat exchange tube 200 is an ellipse, the cross-sectional diameter or the cross-sectional major axis of the body 10 is smaller than the cross-sectional minor axis of the heat exchange tube 200. Thus, a gap may be defined between the outer surface of the body 10 and the inner wall surface of the heat exchange pipe 200. From this, through constructing body 10 for cylindric or ellipse, the continuity of heat transfer runner 10a is better to make the velocity of flow of fluid in flow process remain stable, be favorable to improving the stability of heat transfer effect.
In some embodiments of the present invention, the ratio of the diameter of the body 10 to the minimum diameter of the heat exchange pipe 200 is 0.2 or more and 0.4 or less. It should be noted that the cross section of the heat exchange tube 200 may be circular or elliptical, and when the cross section of the heat exchange tube 200 is circular, the minimum diameter of the heat exchange tube 200 is the diameter of the cross section of the heat exchange tube 200; when the cross-sectional shape of the heat exchange tube 200 is an ellipse, the minimum diameter of the heat exchange tube 200 is the length of the short axis of the cross-section of the heat exchange tube 200. If the ratio of the diameter of the body 10 to the minimum diameter of the heat exchange tube 200 is less than 0.2, the vortex formed when the fluid passes through the heat exchange flow passage 10a is small, which is not favorable for increasing the flow velocity of the fluid; if the ratio of the diameter of the body 10 to the minimum diameter of the heat exchange pipe 200 is greater than 0.4, the volume of the body 10 is large and the occupied space inside the heat exchange pipe 200 is large, thereby affecting the flow rate of the fluid. Therefore, the ratio of the diameter of the body 10 to the minimum diameter of the heat exchange pipe 200 is suitably set between 0.2 and 0.4.
In some embodiments of the present invention, the spiral pitch of the spiral groove 11 or the spiral protrusion is 3 mm or more and 10 mm or less. It will be understood that "helical pitch" refers to the distance between adjacent spirals of helical grooves 11 or helical lobes. If the spiral distance is less than 3 mm, the flow velocity of the fluid passing through the heat exchange flow channel 10a is too high, so that the heat exchange effect of the fluid is influenced; if the pitch of the spirals is greater than 10 mm, the fluid passes through the heat exchange flow passage 10a with less vortex flow, thereby affecting the flow rate of the fluid. Therefore, the pitch of the spiral groove 11 or the spiral protrusion is suitably set to be between 3 and 10 mm.
In some embodiments of the present invention, the body 10 is disposed coaxially with the heat exchange pipe 200. That is, the central axis of the body 10 is disposed to coincide with the central axis of the heat exchange pipe 200. In this way, the body 10 is located at the center of the heat exchange tube 200, and the distance between the outer wall surface of the body 10 and the inner wall surface of the heat exchange tube 200 is equal everywhere in the axial direction of the heat exchange tube 200. Therefore, the flow velocity of the fluid in the axial direction of the heat exchange tube 200 is stable, and the heat exchange effect of the fluid in the heat exchange tube 200 is more uniform.
In some embodiments of the present invention, as shown in fig. 1, the spoiler 100 further includes a fixing portion 20, the fixing portion 20 is connected to an end of the body 10, and the fixing portion 20 is clamped on an inner wall surface of the heat exchange tube 200.
Specifically, the fixing parts 20 are separately provided at an end of the body 10 adjacent to the water inlet 200a of the heat exchange pipe 200 or at an end of the body 10 adjacent to the water outlet 200b of the heat exchange pipe 200, and the fixing parts 20 may also be two and respectively provided at both ends of the body 10. Through set up fixed part 20 at the tip of vortex piece 100, vortex piece 100 is better in the fixed effect of heat exchange tube 200, can avoid vortex piece 100 to take place the displacement under fluidic impact relative heat exchange tube 200.
In some embodiments of the present invention, the fixing portions 20 are two and respectively disposed at both ends of the body 10, each fixing portion 20 includes a plurality of fixing limbs 21 extending along an axial direction of the heat exchange tube 200, the plurality of fixing limbs 21 are spaced apart along a circumferential direction of the heat exchange tube 200 such that the fixing portion 20 forms an inlet and outlet groove between the plurality of fixing limbs 21, and a portion of an outer surface of each fixing limb 21 abuts against an inner wall surface of the heat exchange tube 200.
Specifically, when the heat exchange tube 200 has a circular cross-sectional shape, the limbs 21 are suitably arranged in plurality at intervals along the circumferential direction of the heat exchange tube 200, and the outer surface of each limb 21 facing away from the central axis of the heat exchange tube 200 abuts against the inner wall surface of the heat exchange tube 200. Therefore, the fixing effect of the spoiler 100 in the heat exchange tube 200 is improved, and the plurality of fixing limbs 21 are distributed at intervals, so that the fluid can flow into or out of the heat exchange flow channel 10a through the inlet and outlet grooves among the plurality of fixing limbs 21.
Alternatively, as shown in fig. 2, each of the fixing parts 20 includes two fixing limbs 21, and a distance between the two fixing limbs 21 is greater than a diameter of the body 10.
Specifically, the two fixing limbs 21 are a first fixing limb 21a and a second fixing limb 21b, respectively, and when the cross section of the heat exchange tube 200 is elliptical, the first fixing limb 21a and the second fixing limb 21b may abut against two ends of the inner wall of the heat exchange tube 200 on the major axis, respectively, to fix the spoiler 100 within the heat exchange tube 200. Therefore, the spoiler 100 can be adapted to the heat exchange tubes 200 with different long axis sizes by adjusting the distance between the first fixing limb 21a and the second fixing limb 21b, thereby improving the application range of the spoiler 100.
Further, the fixing portion 20 further includes a connection section 22, the connection section 22 is connected to one end of the body 10, the connection section 22 extends in a radial direction of the heat exchange tube 200, and the two fixing limbs 21 are respectively connected to both ends of the connection section 22 in a length direction. In other words, a lengthwise straight line of the connection section 22 passes through the center of the cross section of the body 10, and the straight line coincides with the long axis of the heat exchange tube 200, and the body 10 is connected with the middle portion of the connection section 22, thereby contributing to ensuring concentricity of the body 10 and the heat exchange tube 200.
In some specific examples of the present invention, the diameter of the body 10 is larger than the width of the fixing portion 20, the end of the body 10 is provided with a transition section 12, and the transition section 12 is connected with the fixing portion 20, wherein the width of the transition section 12 is gradually reduced in a direction toward the fixing portion 20.
It is understood that the width of the transition section 12 refers to the width of the transition section 12 in the direction extending from the minor axis of the heat exchange tube 200, and the maximum width of the transition section 12 is equal to the diameter of the body 10 and the minimum width of the transition section 12 is equal to the width of the fixing portion 20 of the connection section 22. Thus, after entering the heat exchange tube 200 through the water inlet 200a, the fluid enters the heat exchange flow channel 10a through the gap between the transition section 12 and the inner wall surface of the heat exchange tube 200. By providing the width of the transition section 12 to decrease gradually in the direction towards the fixed portion 20, it is advantageous to reduce the loss of flow velocity as the water flows through the transition section 12, thereby facilitating entry into the helical flow.
Preferably, the length of the transition section 12 gradually increases in a direction toward the fixation section 20. It is understood that the length of the transition section 12 refers to the width of the transition section 12 in the direction extending from the long axis of the heat exchange tube 200. Because the length of linkage segment 22 is greater than the diameter of body 10, consequently, set up the length through with changeover portion 12 for the direction of orientation fixed part 20 crescent, be favorable to improving the linkage effect of linkage segment 22 and changeover portion 12 to improve spoiler 100's structural strength.
In some embodiments of the present invention, the fixing portion 20 is integral with the body 10. That is, the fixing portion 20 and the body 10 are integrally formed, so that the spoiler 100 is convenient to machine and manufacture, the fixing portion 20 and the body 10 do not need to be assembled, and the structural strength of the spoiler 100 is high.
In some embodiments of the present invention, the spoiler 100 may be made of stainless steel or copper, or may be made of other high temperature resistant polymer materials.
A specific embodiment according to the present invention is described in detail below with reference to fig. 1 and 2.
As shown in fig. 1 and 2, the spoiler 100 is disposed inside the heat exchange tube 200, and the spoiler 100 is disposed coaxially with the heat exchange tube 200. The spoiler 100 includes a body 10 and a fixing portion 20. The body 10 is constructed in a cylindrical or elliptic cylindrical shape, the outer wall surface of the body 10 is provided with a spiral groove 11, the outer wall surface of the body 10 is spaced apart from the inner wall surface of the heat exchange pipe 200 to define a heat exchange flow passage 10a, and the heat exchange flow passage 10a communicates with a water inlet 200a and a water outlet 200b of the heat exchange pipe 200. Wherein, the ratio of the diameter of the body 10 to the minimum diameter of the heat exchange tube 200 is greater than or equal to 0.2 and less than or equal to 0.4, the spiral space of the heat exchange flow channel 10a is greater than or equal to 3 mm and less than or equal to 10 mm, and the fixing part 20 is clamped on the inner wall surface of the heat exchange tube 200.
The fixing portions 20 are integrated with the body 10, and two fixing portions 20 are respectively disposed at two ends of the body 10. Each of the fixing portions 20 includes two fixing limbs 21 and a connection section 22, the two fixing limbs 21 are connected to both ends of the connection section 22 in a length direction, respectively, each of the fixing limbs 21 extends in an axial direction of the heat exchange tube 200, and the two fixing limbs 21 are fixed to both ends of an inner wall surface of the heat exchange tube 200 in a long axis direction, respectively. The connection segment 22 is connected to an end of the body 10, and the connection segment 22 extends in a radial direction of the heat exchange tube 200.
It should be noted that the diameter of the main body 10 is larger than the width of the fixing portion 20, and the end of the main body 10 is provided with a transition section 12 connected with the fixing portion 20. Wherein the width of the transition section 12 gradually decreases in the direction towards the fixing portion 20 and the length of the transition section 12 gradually increases in the direction towards the fixing portion 20.
A heat exchange device 1000 according to an embodiment of the second aspect of the present invention is described below with reference to fig. 2-5. The heat exchange device 1000 of the embodiment of the invention can be used for a gas water heater.
As shown in fig. 2 to 5, a heat exchange device 1000 according to an embodiment of the present invention includes a plurality of heat exchange tubes 200 and a plurality of flow perturbation members 100.
The plurality of heat exchange tubes 200 are arranged side by side, the heads and the tails of the plurality of heat exchange tubes 200 are sequentially communicated to form a waterway channel, the spoiler 100 is the spoiler 100 for the heat exchange device 1000 according to the first aspect of the present invention, and the spoiler 100 is a plurality of heat exchange tubes 200 arranged in a one-to-one correspondence manner.
Specifically, as shown in fig. 3, the heat exchanger 1000 further includes a housing 600, a water inlet pipe 400, a water outlet pipe 500, and an end cap 300. The plurality of heat exchange tubes 200 are disposed in the housing 600 at intervals, and the water inlet tube 400 and the water outlet tube 500 are respectively communicated with the water inlet end and the water outlet end of the heat exchange flow channel. As shown in fig. 4 and 5, the end cap 300 is formed on the side wall of the casing 600, and the water inlets 200a and the water outlets 200b of two adjacent heat exchange tubes 200 are respectively communicated through the end cap 300, so that the plurality of heat exchange tubes 200 are connected end to end in sequence to form a water path channel. Wherein, the water inlet end and the water outlet end are respectively formed at the two ends of the waterway flow passage.
According to the heat exchange device 1000 of the embodiment of the present invention, by using the spoiler 100 for the heat exchange device 1000 according to the embodiment of the first aspect of the present invention, advantages of high heat exchange efficiency, good heat exchange stability, and the like can be provided, and the fluid can be prevented from being vaporized in the process of flowing in the heat exchange tube 200.
The gas water heater according to the embodiment of the third aspect of the invention comprises the heat exchange device 1000 according to the embodiment of the second aspect of the invention. Other components of the gas water heater of the present embodiment, such as the burner, the fan, etc., can be adopted in various technical solutions known to those skilled in the art now and in the future, and will not be described in detail here. It should be noted that the gas water heater according to the embodiment of the present invention includes a wall-hanging stove.
According to the gas water heater of the embodiment of the invention, by using the heat exchange device 1000 of the embodiment of the second aspect of the invention, the advantages of high heating efficiency, good stability and the like are achieved.
In the description of the present invention, it is to be understood that the terms "central," "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 invention and to simplify the description, and are not intended to indicate or imply that the device or component in question must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the invention.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
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 implicitly indicating 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 invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other or mutually interacted. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present invention, and these should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (14)

1. The utility model provides a vortex piece for heat transfer device, its characterized in that, in the heat exchange tube was located to the vortex piece, the vortex piece includes the body, the outer wall of body with the internal face interval of heat exchange tube sets up in order to inject the heat transfer runner, the heat transfer runner intercommunication the water inlet and the delivery port of heat exchange tube, wherein, the outer wall of body is equipped with spiral groove or spiral arch, spiral groove or spiral arch follows the axial spiral of heat exchange tube extends.
2. A spoiler according to claim 1, characterized in that the body is configured as a cylinder or an elliptic cylinder.
3. The flow spoiler for a heat exchange device according to claim 1, further comprising a fixing portion connected to an end portion of the body, the fixing portion being engaged with an inner wall surface of the heat exchange tube.
4. The flow spoiler for a heat exchange device according to claim 3, wherein the number of the fixing portions is two and the fixing portions are respectively disposed at both ends of the body, each of the fixing portions includes a plurality of fixing limbs extending in a radial direction of the heat exchange tube, the plurality of fixing limbs are circumferentially spaced apart along the heat exchange tube, and a portion of an outer surface of each of the fixing limbs abuts against an inner wall surface of the heat exchange tube.
5. A spoiler for a heat exchange device according to claim 4, wherein access grooves are defined between adjacent limbs.
6. A flow spoiler for a heat exchange device according to claim 4, wherein each of the fixing portions comprises two of the fixing limbs, and a distance between the two fixing limbs is greater than a diameter of the body.
7. The flow spoiler for a heat exchange device according to claim 6, wherein the fixing portion further comprises a connecting section connected to one end of the body, the connecting section extends in a radial direction of the heat exchange tube, and the two fixing limbs are connected to both ends of the connecting section in a length direction thereof, respectively.
8. The flow spoiler for a heat exchange device according to claim 3, wherein the diameter of the body is greater than the width of the fixing portion, and the end portion of the body is provided with a transition section connected with the fixing portion, wherein the width of the transition section is gradually reduced in a direction toward the fixing portion.
9. The flow spoiler for a heat exchanging device according to claim 8, wherein the length of the transition section is gradually increased in a direction toward the fixing portion.
10. A flow spoiler for a heat exchange device according to claim 3, wherein the fixing portion is integral with the body.
11. The flow spoiler for a heat exchanging device according to any one of claims 1 to 10, wherein a ratio of a diameter of the body to a minimum diameter of the heat exchanging pipe is 0.2 or more and 0.4 or less.
12. The flow spoiler for a heat exchanging device according to any one of claims 1 to 10, wherein a pitch of the spiral groove or the spiral protrusion is 3 mm or more and 10 mm or less.
13. A heat exchange device, comprising:
the heat exchange tubes are arranged side by side, and the heat exchange tubes are sequentially communicated end to form a water channel;
the flow spoiler for a heat exchanging device according to any one of claims 1 to 12, wherein the flow spoiler is provided in plurality in one-to-one correspondence with the plurality of heat exchanging pipes.
14. A gas water heater, comprising:
the heat exchange device of claim 13.
CN201910649664.3A 2019-07-18 2019-07-18 Turbulence piece for heat exchange device, heat exchange device with turbulence piece and gas water heater with turbulence piece Pending CN112240725A (en)

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