Heat exchange device with vibration noise suppression function

Abstract

The application provides a heat exchange device with vibration noise suppression function, which comprises a heat exchange body, a heating cavity in the heat exchange body, a water inlet and a steam outlet on the heat exchange body and in communication with the heating cavity, a heating element in the heating cavity, and a flow dividing element in the heating cavity, wherein the flow dividing element comprises a plurality of water injection holes, each of which is in communication with the water inlet and is used for injecting water to remove steam bubbles on the surface of the heating element. The heat exchange device with vibration noise suppression function aims to solve the problem of large operation noise of the heat exchange device in the prior art.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and in particular to a heat exchanger with vibration and noise suppression function. Background Technology

[0002] In traditional technologies, heat exchangers generate strong vibrations and noise during steam production, affecting the quietness of the process system. In some cases, long-term mechanical vibration can induce structural failure, leading to a decrease in system reliability. Summary of the Invention

[0003] This invention provides a heat exchange device with vibration and noise suppression function, aiming to solve the problem of high operating noise in traditional heat exchange devices.

[0004] To address the problems existing in the prior art, embodiments of the present invention provide a heat exchange device with vibration and noise suppression function, comprising:

[0005] A heat exchange body, wherein the heat exchange body has a heating chamber, and the heat exchange body is provided with a water inlet and a steam outlet communicating with the heating chamber;

[0006] A heating element is disposed within the heating cavity; and,

[0007] A flow divider is disposed inside the heating chamber. The flow divider includes multiple water spray holes, each of which is connected to the water inlet. Each water spray hole is used to spray water to flush away bubbles on the surface of the heating element.

[0008] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein the flow divider includes a plurality of flow divider rings nested together, each flow divider ring having a plurality of water spray holes on one side and a flow divider hole on the other side, the flow divider hole being used to communicate with the water inlet.

[0009] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein the flow divider includes a main water inlet pipe and a plurality of branch water inlet pipes connected to the main water inlet pipe, the main water inlet pipe is connected to the water inlet, and each branch water inlet pipe is used to connect to one or more flow divider holes of the flow divider ring.

[0010] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein each of the branch water inlet pipes is radially distributed, and each branch water inlet pipe is provided with a plurality of water inlet holes, and each water inlet hole is sequentially connected to the diversion hole of each of the diversion rings.

[0011] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein each of the branch water inlet pipes is radially distributed in the horizontal direction, and each of the branch flow rings is distributed in the same plane; or, the branch water inlet pipes are radially distributed in the vertical direction, and each of the branch flow rings is distributed in different planes.

[0012] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein each of the water inlet pipes and each of the flow distribution rings is provided with a clearance hole, and the heating element extends along the axial direction of the heat exchange body and passes through the clearance hole.

[0013] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein the flow distribution element includes a spiral flow distribution tube, the spiral flow distribution tube extends along the axial direction of the heat exchange body, and a plurality of water spray holes are spaced apart on the spiral flow distribution tube.

[0014] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein the heating element extends along the axial direction of the heat exchange body, and the spiral diverter is sleeved outside the heating element.

[0015] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein the heating element includes an arched heating rod, both ends of which are disposed on the bottom wall of the heating chamber.

[0016] According to the present invention, a heat exchange device with vibration and noise suppression function is provided, wherein the heating element includes a plurality of arched heating rods, each arched heating rod having a different height, and each arched heating rod is sequentially nested and located on the same plane; or, each arched heating rod is arranged at a radial distance along the heat exchange body.

[0017] The heat exchanger with vibration and noise suppression function provided by this invention features a flow divider with spray holes. Water is sprayed out through these holes, causing strong convective motion on the surface of the heating element. This water displaces small steam bubbles generated by heat absorption on the heating element surface, preventing them from growing larger and reducing their size. Compared to the breakup of large steam bubbles, the vibration amplitude and energy generated by the breakup of small steam bubbles are significantly reduced, thus minimizing vibration and noise caused by bubble breakup in the heat exchanger with vibration and noise suppression function. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the heat exchange device with vibration and noise suppression function provided by the present invention;

[0020] Figure 2 This is a schematic diagram of the flow divider provided by the present invention;

[0021] Figure 3 This is a schematic diagram of the bubble-dispersing grid plate provided by the present invention;

[0022] Figure 4 This is a schematic diagram of the second embodiment of the heat exchange device with vibration and noise suppression function provided by the present invention.

[0023] Figure label:

[0024] 10: Heat exchanger body; 11: Heating chamber; 12: Water inlet; 13: Steam outlet; 20: Heating element; 21: Arched heating rod; 30: Flow divider; 31: Flow divider ring; 311: Water spray hole; 312: Clearance hole; 32: Main water inlet pipe; 33: Branch water inlet pipe; 34: Spiral flow divider pipe; 40: Stirrer; 41: Magnetic stirring impeller; 42: High-frequency piezoelectric ceramic fin; 50: Bubble divider; 51: Bubble divider grid; 52: Ultrasonic generator. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0027] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0031] The following is combined Figures 1-4 This invention describes a heat exchange device with vibration and noise suppression function.

[0032] In traditional heat exchange devices, the surface temperature of the heating rod is high, and the boiling bubbles absorb heat at a high rate on the surface of the heating rod, causing them to grow and converge into large bubbles rapidly. The process of these large bubbles detaching from the heating rod and bursting can induce mechanical vibration and noise. Therefore, this invention provides a heat exchange device with vibration and noise suppression capabilities, including a heat exchange body 10, a heating element 20, and a flow divider 30. The aim is to reduce noise during the operation of the heat exchange device.

[0033] Please see Figure 1 The heat exchanger body 10 has a heating chamber 11. The heat exchanger body 10 is provided with a water inlet 12 and a steam outlet 13 communicating with the heating chamber 11. The water inlet 12 is used to supply water into the heating chamber 11, and the steam outlet 13 is used to supply steam. A heating element 20 is disposed within the heating chamber 11 and is used to heat cold water, causing it to boil and generate steam. Unlike conventional heat exchange devices, the heat exchanger with vibration and noise suppression function provided by this invention is provided with a flow divider 30. The flow divider 30 is disposed within the heating chamber 11 and includes multiple water spray holes 311. Each water spray hole 311 is connected to the water inlet 12 and is used to spray water to flush away bubbles on the surface of the heating element 20. It should be noted that the water flowing in from the inlet 12 will be sprayed out through the spray nozzle 311. The sprayed water will cause strong convection on the surface of the heating element 20, which can dislodge the small steam bubbles generated by heat absorption on the surface of the heating element 20, thereby preventing the small steam bubbles from continuing to grow and reducing their size. Compared with the breaking of large steam bubbles, the vibration amplitude and energy generated by the breaking of small steam bubbles will be significantly reduced, thus reducing the vibration and noise caused by the breaking of steam bubbles in the heat exchanger with vibration and noise suppression function.

[0034] In an optional embodiment, please refer to Figure 1 and Figure 2 The flow divider 30 includes multiple nested flow divider rings 31. Each flow divider ring 31 has multiple water spray holes 311 on one side and a flow divider hole on the other side, which is used to communicate with the water inlet 12. It should be noted that by setting multiple nested flow divider rings 31, multiple water spray rings are formed outward along the axis of the heat exchanger body 10, resulting in more uniform water spray. On the one hand, this is less likely to cause drastic changes in the flow field; on the other hand, regardless of the shape or position of the heating element 20, the small bubbles generated on it can be washed away by the strong convection generated by the water spray from the flow divider rings 31. Of course, gaps can also be formed between the flow divider rings 31, which facilitates the placement of the heating element 20 without causing installation interference.

[0035] Furthermore, the diversion component 30 includes a main water inlet pipe 32 and multiple branch water inlet pipes 33 connected to the main water inlet pipe 32. The main water inlet pipe 32 is connected to the water inlet 12, and each branch water inlet pipe 33 is used to connect to one or more diversion holes of the diversion ring 31. In an optional embodiment, the main water inlet pipe 32 can be directly connected to the water inlet 12, that is, all the water is sprayed out only through the diversion component 30; in other optional embodiments, two pipes are provided at the water inlet 12, one pipe is used to normally deliver water into the heating chamber 11, and the other pipe is connected to the main water inlet pipe 32 for spraying water. Furthermore, each branch water inlet pipe 33 can connect to one diversion hole of the diversion ring 31, or connect to multiple diversion holes of the diversion ring 31, and the present invention is not limited thereto.

[0036] In one embodiment provided by the present invention, please refer to Figure 2 The branch water inlet pipes 33 are radially distributed, and each branch water inlet pipe 33 has multiple water inlet holes, each of which is sequentially connected to the diversion holes of each diversion ring 31. In an optional embodiment, a sleeve can be provided on either the water inlet hole or the diversion hole, so that the branch water inlet pipe 33 and the diversion ring 31 can be installed and connected while maintaining communication. With this configuration, each diversion ring 31 has multiple diversion holes, and each diversion ring 31 can be supplied with water through multiple branch water inlet pipes 33. On the one hand, this ensures sufficient water supply, thereby ensuring the water spray pressure to improve the flushing effect on the bubbles. On the other hand, it also makes the structure of the diversion component 30 more regular, eliminating the need for a large number of dispersed pipes in the heating chamber 11. The entire diversion component 30 forms a regular umbrella-shaped structure, which is convenient for installation and the arrangement of other structures. Further, in an optional embodiment, the water inlet pipes 33 are radially distributed in the horizontal direction, and the diversion rings 31 are distributed on the same plane, that is, the entire diversion component 30 is planar, and in an optional embodiment, it is circular. In another optional embodiment, the water inlet pipes 33 are radially distributed in the vertical direction, and the diversion rings 31 are distributed on different planes, that is, the entire diversion component 30 is three-dimensional, and in an optional embodiment, it is conical. It should be noted that, in order to ensure the water spraying effect and allow the water spray to dislodge small bubbles from the surface of the heating element 20, the water spraying path can be set towards the heating element 20, and the extension direction of the water spraying path of each water spray hole 311 is different. In other embodiments, the water spraying path can also be set to be the same as the extension direction of the heating element 20, and the water spraying path of each water spray hole 311 is arranged parallel to it. Assuming that the heating element 20 extends along the axial direction of the heat exchange body 10, and the water spray path also extends along the axial direction of the heat exchange body 10, the water spray can form a flow field along the axial direction of the heat exchange body 10, which can efficiently flush away small bubbles on the heating element 20 and improve the efficiency of bubble flushing.

[0037] Furthermore, to facilitate the installation of the heating element 20, a clearance hole 312 is formed between the water inlet pipe 33 and the flow divider ring 31. The heating element 20 extends axially along the heat exchange body 10 and passes through the clearance hole 312. The heating element 20 can be configured as a heating rod, heating wire, or other heating device, and the present invention does not limit it in this regard.

[0038] As mentioned above, the diverter 30 is connected to the water inlet 12 and is used to spray water to flush away the bubbles on the surface of the heating element 20. In another optional embodiment, the diverter 30 can also be connected to the steam outlet 13 and is used to spray steam to flush away the bubbles on the surface of the heating element 20. The steam can also further increase the water temperature. Of course, in other optional embodiments, multiple diverters 30 can be provided, some for spraying water and some for spraying steam. Regardless of whether water or steam is sprayed, the arrangement of the diverters 30 can be the same, only the connected pipelines are different. This invention does not limit this.

[0039] Please see Figure 4 In another embodiment of the present invention, the flow divider 30 includes a spiral flow divider 34, which extends axially along the heat exchange body 10. Multiple water spray holes 311 are spaced apart on the spiral flow divider 34. Compared to the flow divider ring 31, the spiral flow divider 34 spirals upwards, which on the one hand can spray water to flush away bubbles on the surface of the heating element 20, and on the other hand, the incoming water can also increase its temperature as it spirals upwards, further preventing uneven water temperature inside the heat exchange body 10 and excessive noise caused by overcooling. It should be noted that because the flow field formed by the spiral flow divider 34 is not very uniform, its effect on flushing bubbles may not be as ideal as that of the flow divider ring 31. However, since it can heat the incoming water to prevent overcooling, it can further help reduce noise. Furthermore, the heating element 20 extends axially along the heat exchange body 10, and the spiral flow divider 34 is sleeved outside the heating element 20; the two installations do not interfere with each other.

[0040] As mentioned above, the heating element 20 can be configured in various structural forms. In one embodiment of the present invention, the heating element 20 includes an arched heating rod 21, with both ends of the arched heating rod 21 located on the bottom wall of the heating chamber 11. This increases the contact area with water compared to a long, narrow heating rod, thereby improving heating efficiency. Further, in an optional embodiment, the heating element 20 includes multiple arched heating rods 21, each with a different height. These arched heating rods 21 are sequentially nested and extend along the same plane. This arrangement facilitates installation while also improving the scouring effect of the bubbles. In another optional embodiment, the arched heating rods 21 are arranged radially at intervals along the heat exchange body 10. Those skilled in the art can select a suitable configuration of the heating element 20 according to the operating conditions and installation requirements; the present invention does not limit this selection.

[0041] Furthermore, a stirrer 40 is also provided on the bottom wall of the heating chamber 11. The stirrer 40 can be a mechanical stirrer, a magnetic stirring impeller 41, or a high-frequency piezoelectric ceramic impeller 42. The magnetic stirring impeller 41 consists of a magnetic actuator and an impeller. The impeller rotates continuously under the drive of the magnetic field. After the impeller rotates, it generates an upward and centrifugal force on the water, forcing convective heat transfer between the water and the heating element 20. The high-frequency piezoelectric ceramic impeller 42 is an array of strips processed from piezoelectric ceramic as the base material. When an external power source is connected, each strip of the high-frequency piezoelectric ceramic impeller 42 oscillates at high frequency under the action of the piezoelectric effect, driving the water to move rapidly and enhancing the convective heat transfer coefficient between the water and the heating element 20. In summary, by setting up the stirrer 40, on the one hand, the surface temperature of the heating element 20 can be reduced, reducing the generation of bubbles; on the other hand, the movement of the water can further flush away the bubbles on the surface of the heating element 20; and finally, the flow of the water can be driven for heat transfer, making the water temperature more uniform. In summary, the addition of a stirrer 40 can both help reduce the noise of the heat exchange device and improve its heating efficiency.

[0042] Although the aforementioned solutions include structures to flush out or reduce the number of bubbles, in practical applications, bubbles will still continuously rise and break, generating noise. Considering that the noise from small bubbles breaking is lower than that from large bubbles, the technical solution provided by this invention also includes a bubble divider 50 within the heating chamber 11. In optional embodiments, please refer to... Figure 1 and Figure 3 The heating chamber 11 is equipped with a bubble-splitting grid 51. By arranging one or more layers of bubble-splitting grids 51 in the space above the heating element 20, the large bubbles generated by boiling water are broken down into numerous tiny bubbles through the fine grid structure on the grids 51. In another optional embodiment, please refer to... Figure 4 Alternatively, one or more ultrasonic generators 52 can be arranged on the inner wall of the heating chamber 11. High-frequency ultrasonic vibrations can break down the large bubbles generated by boiling water into numerous tiny bubbles. It should be noted that by setting up a bubble divider 50, large bubbles can be separated into tiny bubbles. These tiny bubbles continue to rise to the water surface and break down, releasing steam. Compared to the breaking down of large bubbles at the water surface, the vibration energy generated after the bubbles break down is significantly reduced due to the substantial decrease in bubble volume. The breaking frequency shifts to higher frequencies as the number of small bubbles increases. The high-frequency oscillations attenuate rapidly during propagation, and the energy transmitted outwards after passing through the water and the wall of the heating chamber 11 is also significantly reduced, thereby greatly reducing the overall vibration noise of the equipment and achieving vibration reduction and noise reduction.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A heat exchange device with vibration noise suppression function, characterized in that, The application relates to a heat exchange body, which comprises a heating cavity, a water inlet and a steam outlet, a heating element and a flow distribution element. The flow distribution element comprises a plurality of flow distribution rings, each of which is provided with a plurality of water injection holes on one side and a plurality of flow distribution holes on the other side. The flow distribution element comprises a main water inlet pipe and a plurality of branch water inlet pipes. Each of the branch water inlet pipes is provided with a plurality of water inlets. The heating element extends along the axial direction of the heat exchange body and is arranged in the avoiding hole. The flow distribution element comprises a spiral flow distribution pipe. The heating element comprises a plurality of arc-shaped heating rods. The arc-shaped heating rods are arranged in the same plane.

2. The heat exchange apparatus with vibration noise suppression function according to claim 1, characterized by The arc-shaped heating rods are arranged along the radial direction of the heat exchange body.

3. The heat exchange apparatus with vibration noise suppression function according to claim 1, characterized in that, ​ 4. The heat exchange apparatus with vibration noise suppression function according to claim 3, characterized in that, ​ 5. The heat exchanger with vibration noise suppression function according to claim 1 or 4, characterized in that, ​ 6. The heat exchange apparatus with vibration noise suppression function according to claim 5, wherein ​

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