Heat exchanger
By designing gradually expanding and contracting feed and discharge pipe structures in the heat exchanger, the fluid residence time is extended, solving the problem of improving heat exchange efficiency under the space constraints of small enterprises, and achieving improved heat exchange efficiency without increasing the size of the equipment.
Patent Information
- Application Number
- CN202520548573.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Small manufacturing companies need to improve the heat exchange efficiency of heat exchangers, but are limited by workshop space and cannot install larger equipment.
By adjusting the design of the feed pipe and discharge pipe, making them adopt gradually expanding and gradually contracting structures respectively, the residence time of the fluid to be exchanged in the heat exchanger can be extended, thereby improving the heat exchange efficiency.
Without increasing the size of the equipment, the heat exchange time between the fluid to be heat exchanged and the heat exchange medium is extended, thereby improving the heat exchange efficiency of the heat exchanger.
Smart Images
Figure CN223910095U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to heat exchanger technical field especially relates to a heat exchanger. BACKGROUND
[0002] The heat exchanger is a device for transferring heat between different fluids, and its main function is to achieve efficient energy transfer through heat conduction, convection and radiation, without direct contact or mixing of the two fluids. With the development of manufacturing industry, some small enterprises have higher requirements for the heat exchange efficiency of heat exchangers and are limited by the workshop space, and cannot install large heat exchangers to improve the heat exchange efficiency.
[0003] Therefore, how to improve the heat exchange efficiency of the heat exchanger without increasing the volume of the equipment is a technical problem that needs to be solved by those skilled in the art.
[0004] It should be noted that the above information disclosed in the background section is only used to understand the background of the present application, and therefore, the above description is not considered to constitute prior art information. CONTENT OF THE UTILITY MODEL
[0005] The present disclosure provides at least a kind of heat exchanger.
[0006] In a first aspect, the present disclosure provides a heat exchanger, comprising:
[0007] A housing is provided with a liquid inlet and a liquid outlet;
[0008] A plurality of tube bundles are arranged in the housing, and the gaps between adjacent tube bundles form flow channels, and the two ends of the tube bundles are respectively communicated with the feed pipe and the discharge pipe;
[0009] Wherein, the feed pipe gradually widens from the feed port to the tube bundle direction; and,
[0010] The discharge pipe gradually narrows to the discharge port direction.
[0011] In an alternative embodiment, the ratio of the diameter D1 of the feed pipe inlet to the diameter D2 of the feed pipe outlet is 1:1.5-1:3.
[0012] In an alternative embodiment, the longitudinal section of the feed pipe and the discharge pipe is a right trapezoid.
[0013] In an alternative embodiment, the longitudinal section of the feed pipe and the discharge pipe is an isosceles trapezoid.
[0014] In an alternative embodiment, the shell comprises an upper shell and a lower shell, one side of the upper shell and the lower shell is connected by a U-shaped shell and the other side is connected by a hose, and the connection between the U-shaped shell and the upper and lower shells is provided with a partition plate.
[0015] The partition plate is provided with a plurality of tube bundle holes, wherein the tube bundle is U-shaped and uniformly distributed in the shell.
[0016] In an alternative embodiment, the feed pipe is arranged on the lower shell, and the discharge pipe is arranged on the upper shell.
[0017] The liquid inlet is arranged at the bottom of the lower shell, and the liquid outlet is arranged above the upper shell.
[0018] In an alternative embodiment, a plurality of guide plates are arranged in the upper shell and the lower shell.
[0019] In a second aspect, the present disclosure further provides a heat exchanger, comprising:
[0020] An upper shell and a lower shell, the upper shell is provided with a liquid outlet, and the lower shell is provided with a liquid inlet, and
[0021] The upper shell and the lower shell are connected by a U-shaped shell, and the connection between the U-shaped shell and the upper and lower shells is provided with a partition plate, and the partition plate is provided with a plurality of tube bundle holes.
[0022] A plurality of tube bundles are arranged in the upper shell, the lower shell and the U-shaped shell, the tube bundles are uniformly distributed in the shell through the tube bundle holes, and the gap between adjacent tube bundles forms a flow channel, and the two ends of the tube bundle are respectively connected with the feed pipe and the discharge pipe.
[0023] The diameter D1 of the feed pipe inlet and the diameter D2 of the feed pipe outlet are in the ratio of 1:1.5-1:3.
[0024] The discharge pipe gradually narrows towards the discharge port.
[0025] In an alternative embodiment, the ratio of the diameter D1 of the feed pipe inlet to the diameter D2 of the feed pipe outlet is 1:1.5-1:3.
[0026] In an alternative embodiment, the longitudinal section of the feed pipe and the discharge pipe is a right trapezoid; or
[0027] The longitudinal section of the feed pipe and the discharge pipe is an isosceles trapezoid.
[0028] The utility model discloses a beneficial effect is, the pipe bundle in the casing of this heat exchanger is communicated with the feed pipe and the discharge pipe respectively, the feed pipe adopts the structure of gradually expanding, and the discharge pipe adopts the structure of gradually reducing, so that the flow rate of the fluid to be exchanged in the pipe bundle gradually reduces, to increase the residence time of the fluid to be exchanged in the pipe bundle in the heat exchanger, make the heat exchange time of the fluid to be exchanged in the pipe bundle and the heat exchange medium in the casing prolong, thereby realize the heat exchange efficiency of heat exchanger is improved under the premise of not increasing equipment volume.
[0029] Other features and advantages of the utility model will be set forth in the subsequent description, and, partially become obvious from the description, or understand by implementing the utility model. The purpose and other advantages of the utility model are realized and obtained in the structure that the specification, drawing point out specially.
[0030] In order to make the above purpose, feature and advantage of the utility model more obvious and easy to understand, the text features the preferred embodiment, and cooperates the drawing, and is described in detail as follows. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will be briefly introduced to the drawing needed to be used in the specific embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.
[0032] Figure 1 It is a schematic view of a heat exchanger embodiment 1 provided by the embodiment of the present disclosure;
[0033] Figure 2 It is a schematic view of a heat exchanger embodiment 2 provided by the embodiment of the present disclosure;
[0034] Figure 3 It is a sectional view of the upper casing of a heat exchanger provided by the embodiment of the present disclosure;
[0035] Figure 4 It is a schematic view of the partition plate of a heat exchanger provided by the embodiment of the present disclosure.
[0036] In the drawing:
[0037] 100, casing;110, upper casing;111, liquid outlet;112, deflector;120, lower casing;121, liquid inlet;130, U-shaped casing;131, partition plate;132, pipe bundle hole;200, feed pipe;210, feed port;300, discharge pipe;310, discharge port;400, pipe bundle;500, flow channel;600, hose. DETAILED DESCRIPTION
[0038] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0039] In this document, when a first component is referred to as being "on" a second component, it can be directly on the second component or a third component can be interposed between the first component and the second component. Also, in the drawings, the thickness of components can be exaggerated or reduced for effective description of the technical content.
[0040] In this document, when an element or layer is referred to as being "on", "engaged to", "connected to", "attached to", or "coupled to" another element or layer, it can be directly on, engaged, connected, attached, or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly engaged to", "directly connected to", "directly attached to", or "directly coupled to" another element or layer, there are no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a like fashion (e.g., "between" versus "directly between", "adjacent" versus "directly adjacent", etc.). As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.
[0041] In this document, example embodiments of the disclosure will be described in greater detail with reference to the accompanying drawings. As used herein, expressions such as "at least one of", when preceded by the term comprising, are intended to cover the interrelated items that are encompassed by the alternative of the term comprising. For example, the expression "at least one of a, b, and c" is intended to mean a, b, or c individually, or any combination of a, b, and c. As used herein, expressions such as "at least one of" when followed by a list of elements are intended to cover the interrelated items that are encompassed by the alternative of the term comprising. For example, the expression "at least one of a, b, and c" is intended to mean a, b, or c individually, or any combination of a, b, and c. As used herein, the expression "comprising at least one of a, b, and c" is intended to mean a, b, or c individually, or any combination of a, b, and c.
[0042] The terminology used herein is for the purpose of describing particular example configurations only and is not intended to be limiting. As used herein, the singular articles "a", "an", and "the" can be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "including", and "has" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are discussed or illustrated, unless specifically identified as an order of performance. Additional or alternative steps can be employed.
[0043] As used herein, the phrases "in one embodiment", "according to one embodiment", "in some embodiments", and the like are generally intended to refer to the fact that a described feature, structure, or characteristic can be included in at least one embodiment of the disclosure. As such, features, structures, or characteristics can be included in more than one embodiment of the disclosure, and the phrases "in one embodiment", "according to one embodiment", "in some embodiments", and the like are not necessarily referring to the same embodiment. As used herein, the terms "for example", "e.g.", and the like are utilized to mean "for the purpose of illustration and example".
[0044] It is found through research that the prior art has the following disadvantages: with the development of manufacturing industry, some small enterprises have higher requirements for the heat exchange efficiency of heat exchangers and are limited by workshop space, and cannot purchase heat exchangers with large volumes to improve the heat exchange efficiency.
[0045] Based on the above research, the embodiment of the present disclosure provides a heat exchanger, which adjusts the pipe diameter of the feed pipe and the discharge pipe to prolong the heat exchange time of the fluid to be exchanged in the heat exchanger, thereby improving the heat exchange efficiency of the heat exchanger, and solves the above problems.
[0046] The above-mentioned defects are the results of the inventors after practice and careful research, and therefore, the discovery process of the above-mentioned problems and the solutions proposed by the present disclosure to solve the above-mentioned problems should be the contributions of the inventors to the present disclosure in the process of the present disclosure.
[0047] It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0048] Some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.
[0049] Referring to Figure 1 The embodiment of the present disclosure provides a heat exchanger, which comprises a shell 100 provided with a liquid inlet 121 and a liquid outlet 111, a heat exchange medium is adapted to enter the shell from the liquid inlet 121 and then flow out from the liquid outlet 111, and the specific flow direction of the heat exchange medium is as shown in Figure 1The solid arrow shows. The shell 100 is provided with a number of tube bundles 400, the two ends of the tube bundle 400 are communicated with the feed pipe 200 and the discharge pipe 300 respectively, the fluid to be heated enters the tube bundle 400 through the feed pipe 200, and flows out from the discharge pipe 300 after completing heat exchange, and the flow direction of the fluid to be heated is shown by the dotted arrow. Figure 1 The dotted arrow shows.
[0050] Referring to Figure 3 In some embodiments, the gap between adjacent tube bundles 400 forms a flow channel 500, the heat exchange medium flows into the shell flow channel 500 through the liquid inlet 121, forming a full-enclosed flow path for the tube bundle 400, and the fluid to be heated in the tube bundle 400 is in contact with the heat exchange medium in the flow channel 500 through the tube bundle 400 to complete heat exchange.
[0051] Continuing to refer to Figure 1 In some embodiments, the feed inlet 210 gradually widens towards the feed pipe 200, and the discharge pipe 300 gradually narrows towards the discharge outlet 310. Through the above arrangement, the flow speed of the fluid to be heated in the tube bundle 400 is slowed down to increase the residence time of the fluid to be heated in the tube bundle 400 in the heat exchanger, so that the heat exchange time of the fluid to be heated in the tube bundle 400 with the heat exchange medium in the shell 100 is prolonged, thereby improving the heat exchange efficiency of the heat exchanger without increasing the volume of the equipment.
[0052] Continuing to refer to Figure 1 In some embodiments, the ratio of the diameter D1 of the inlet of the feed pipe 200 to the diameter D2 of the outlet of the feed pipe 200 is D1:D2=1:1.5-1:3, preferably 1:1.5, 1:3 or 1:2. According to the fluid mechanics equation, V2=V1·(D1 / D2) 2 When the diameter D1 of the inlet of the feed pipe 200 is equal to the diameter D2 of the outlet of the feed pipe 200, the flow rate V2=V1, when D1:D2=1:2, V2=V1·(1 / 2) 2 That is, V2=(1 / 4)V1, according to the above formula, when D1:D2=1:2, the flow rate of the feed pipe 200 is about 25% of the original value, thereby prolonging the residence time of the fluid to be heated in the heat exchanger. The calculation method of the remaining diameter ratio is the same as the above embodiment, which will not be expanded here.
[0053] Continuing to refer to Figure 1 In some embodiments, the longitudinal section of the feed pipe 200 and the discharge pipe 300 is a right trapezoid.
[0054] Referring to Figure 2 In some embodiments, the longitudinal section of the feed pipe 200 and the discharge pipe 300 is an isosceles trapezoid.
[0055] Referring to Figure 1 andFigure 4 In some embodiments, the shell 100 comprises an upper shell 110 and a lower shell 120, the upper shell 110 and the lower shell 120 are connected by a U-shaped shell 130, and the connection between the U-shaped shell 130 and the upper and lower shells 120 is provided with a partition plate 131; the partition plate 131 is provided with a plurality of tube bundle holes 132, and the tube bundle 400 is U-shaped and uniformly distributed in the shell 100 by passing through the tube bundle holes 132. The uniformly distributed tube bundle 400 can avoid the stagnation of the heat exchange medium in the local area of the shell 100, ensure that all the tube bundles 400 participate in heat exchange, and improve the overall heat transfer efficiency.
[0056] Continuing to refer to Figure 1 In some embodiments, the feed pipe 200 is arranged on the lower shell 120, and the discharge pipe 300 is arranged on the upper shell 110; and the liquid inlet 121 is arranged at the bottom of the lower shell 120, and the liquid outlet 111 is arranged above the upper shell 110. Through the above arrangement, a one-way flow path from bottom to top can be formed to make the heat exchange medium uniformly fill the flow channel 500 in the shell, avoiding uneven flow caused by local dead angle.
[0057] Continuing to refer to Figure 1 In some embodiments, the upper shell 110 and the lower shell 120 are connected by a hose 600, which can be a metal braided hose, which has good pressure and temperature resistance and can absorb vibration and impact during the operation of the heat exchanger, maintaining the stability and reliability of the equipment.
[0058] Referring to Figure 2 In some embodiments, a plurality of guide plates 112 are arranged in the upper shell 110 and the lower shell 120, and a "labyrinth" flow path is formed by the staggered arrangement of the guide plates 112, which reduces the probability of the heat exchange medium bypassing the tube bundle 400, so as to ensure that all the tube bundles 400 participate in heat exchange.
[0059] In summary, the tube bundle 400 in the shell 100 of the heat exchanger is in communication with the feed pipe 200 and the discharge pipe 300, the feed pipe 200 adopts a gradually expanding structure, and the discharge pipe 300 adopts a gradually tapering structure, so that the flow rate of the fluid to be heat exchanged gradually decreases in the tube bundle, thereby increasing the residence time of the fluid to be heat exchanged in the tube bundle 400 in the heat exchanger, prolonging the heat exchange time between the fluid to be heat exchanged in the tube bundle 400 and the heat exchange medium in the shell 100, and thereby improving the heat exchange efficiency of the heat exchanger without increasing the volume of the equipment.
[0060] In the description of the embodiments of the utility model, unless otherwise clear and definite, the terms "mount", "connect", "connection" should be understood in broad sense, for example, it can be fixed connection, also can be detachable connection, or integrally connected, it can be mechanical connection, also can be electrical connection, it can be direct connection, also can be indirect connection through intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0061] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, terms such as "first", "second" and other numerical terms are not implied to indicate order or sequence when used herein, unless explicitly indicated in the context. Therefore, the first element, component, region, layer or section discussed above can be referred to as the second element, component, region, layer or section without departing from the teachings of the example embodiments.
[0062] Spatially relative terms, such as "inner", "outer", "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0063] In the above discussion, unless otherwise stated, the terms "about", "approximately", "substantially" and the like, when used in describing numerical values, mean a + / - 10% variation of the value.
[0064] With the above ideal embodiments according to the utility model as inspiration, through the above description, relevant staff can definitely make various changes and modifications without deviating from the technical thought of the utility model. The technical scope of the utility model is not limited to the content in the specification, and must be determined according to the scope of claims.
Claims
1. A heat exchanger, characterized by, The heat exchanger comprises: a shell (100) provided with a liquid inlet (121) and a liquid outlet (111); a plurality of pipe bundles (400) arranged in the shell, gaps between adjacent pipe bundles (400) forming flow channels (500), and two ends of the pipe bundles (400) being in communication with a feed pipe (200) and a discharge pipe (300) respectively; wherein the feed pipe (200) gradually widens from the feed inlet (210) to the pipe bundle (400); and the discharge pipe (300) gradually narrows from the pipe bundle (400) to the discharge outlet (310).
2. The heat exchanger according to claim 1, wherein the ratio of the diameter D1 of the inlet of the feed pipe (200) to the diameter D2 of the outlet of the feed pipe (200) is 1:1.5-1:
3.
3. The heat exchanger according to claim 1, wherein the longitudinal section of the feed pipe (200) and the discharge pipe (300) is a right trapezoid.
4. The heat exchanger according to claim 1, wherein the longitudinal section of the feed pipe (200) and the discharge pipe (300) is an isosceles trapezoid.
5. The heat exchanger according to claim 1, wherein the shell comprises an upper shell (110) and a lower shell (120), one side of the upper shell (110) and the lower shell (120) being connected by a U-shaped shell (130) and the other side being in communication by a hose (600), and the connection of the U-shaped shell (130) with the upper and lower shells (110, 120) is provided with a partition plate (131); the partition plate (131) is provided with a plurality of pipe bundle holes (132), wherein the pipe bundles (400) are U-shaped and uniformly distributed in the shell.
6. The heat exchanger according to claim 5, wherein the feed pipe (200) is arranged on the lower shell (120), and the discharge pipe (300) is arranged on the upper shell (110); and the liquid inlet (121) is arranged at the bottom of the lower shell (120), and the liquid outlet (111) is arranged above the upper shell (110).
7. The heat exchanger according to claim 6, wherein a plurality of guide plates (112) are arranged in the upper shell (110) and the lower shell (120).
8. A heat exchanger, characterized by The heat exchanger comprises: an upper shell (110) and a lower shell (120), the upper shell (110) being provided with a liquid outlet (111), and the lower shell (120) being provided with a liquid inlet (121); and the upper shell (110) and the lower shell (120) are connected by a U-shaped shell (130), and the connection of the U-shaped shell (130) with the upper and lower shells (110, 120) is provided with a partition plate (131), and the partition plate (131) is provided with a plurality of pipe bundle holes (132). The upper and lower shells (110, 120) and the U-shaped shell (130) are provided with a plurality of tube bundles (400), the tube bundles (400) are uniformly distributed in the shell through the tube bundle holes (132), and the gaps between adjacent tube bundles (400) form flow channels (500) and the two ends of the tube bundles (400) are respectively communicated with the feed pipe (200) and the discharge pipe (300); Wherein, the feed pipe (200) gradually widens from the feed inlet (210) to the direction of the tube bundle (400); and The discharge pipe (300) gradually narrows to the direction of the discharge outlet (310).
9. The heat exchanger of claim 8, wherein The ratio of the diameter D1 of the inlet of the feed pipe (200) to the diameter D2 of the outlet of the feed pipe (200) is 1:1.5-1:
3.
10. The heat exchanger of claim 8, wherein The longitudinal section of the feed pipe (200) and the discharge pipe (300) is a right trapezoid; or The longitudinal section of the feed pipe (200) and the discharge pipe (300) is an isosceles trapezoid.