Ceramic countercurrent plate type heat exchanger and heat exchange system
By designing a multi-layer heat exchange plate in the ceramic heat exchanger to form a non-connected flow channel, a close-complete countercurrent contact between the first medium and the second medium is achieved, solving the problem that the existing ceramic plate heat exchanger does not achieve complete countercurrent and improving the heat exchange efficiency.
Patent Information
- Application Number
- CN202420685537.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing high-temperature resistant ceramic plate heat exchangers do not achieve a complete countercurrent heat exchange effect, which affects the heat exchange efficiency.
A ceramic countercurrent plate heat exchanger is designed, by providing multi-layer heat exchanger at the top and bottom spaces in the heat exchange case to form a plurality of non-connected flow channels, so as to achieve close-complete countercurrent contact between the first medium and the second medium.
It improves the contact effect during heat exchange of medium, improves heat exchange efficiency, and has a simple structure to achieve high-temperature heat exchange.
Smart Images
Figure CN222598590U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of chemical equipment, and in particular to a ceramic countercurrent plate heat exchanger and a heat exchange system. Background Art
[0002] The traditional plate heat exchanger is a new type of high-efficiency heat exchanger made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. The plate heat exchanger is an ideal equipment for liquid-liquid and liquid-steam heat exchange. It has the characteristics of high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, easy installation and cleaning, wide application, and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of the shell and tube heat exchanger, and the footprint is one-third of that of the tube heat exchanger. The heat recovery rate can be as high as 90% or more.
[0003] High temperature resistant ceramic heat exchanger is a commonly used heat exchanger, which is mostly set up with cross-flow inside. Currently, there is no high temperature resistant ceramic plate heat exchanger with complete counter-flow.
[0004] In view of this, the present utility model is proposed. Utility Model Content
[0005] The utility model aims to provide a ceramic countercurrent plate heat exchanger and a heat exchange system, aiming to achieve a contact effect close to complete countercurrent during medium heat exchange and improve heat exchange efficiency.
[0006] The embodiment of the utility model is achieved as follows:
[0007] In a first aspect, the utility model provides a ceramic counterflow plate heat exchanger, comprising a heat exchange shell, in which multiple layers of heat exchange plates are arranged from top to bottom, a flow channel is formed between two adjacent layers of heat exchange plates, and the flow channels are not interconnected, and the multiple flow channels formed from top to bottom are divided into a first medium flow channel for the circulation of a first medium and a second medium flow channel for the circulation of a second medium;
[0008] A first discharge structure for discharging a first medium and a second feed structure for feeding a second medium are provided at one end of the heat exchange shell, and a first feed structure for feeding the first medium and a second discharge structure for discharging the second medium are provided at the other opposite end of the heat exchange shell;
[0009] The first discharge structure includes a plurality of first discharge sealing members, and the first feed structure includes a plurality of first feed sealing members, so as to block the second medium flow channel through the plurality of first discharge sealing members and the plurality of first feed sealing members;
[0010] The second material feed structure includes a plurality of second material feed blocking pieces, and the second material discharge structure includes a plurality of second material discharge blocking pieces, so as to block the first medium flow channel through the plurality of second material feed blocking pieces and the plurality of second material discharge blocking pieces.
[0011] In an optional embodiment, the first medium flow channels and the second medium flow channels are alternately arranged, and the flow channels adjacent to the first medium flow channels are all second medium flow channels.
[0012] In an optional embodiment, the heat exchange shell has a first end face and a second end face opposite to the first end face, the first discharge structure also includes a first summary discharge port, the first feed structure also includes a first feed port, the first summary discharge port is located on the first end face of the heat exchange shell, and the first feed port is located on the second end face of the heat exchange shell.
[0013] In an optional embodiment, the first discharge structure further includes a first discharge channel, the first discharge channel is connected to the outlet of the first medium flow channel, and the first aggregate discharge port is located at the end of the first discharge channel.
[0014] In an optional embodiment, the first feed structure further includes a first feed channel, the first feed port is located at an inlet end of the first feed channel, and an outlet end of the first feed channel is connected to an inlet of the first medium flow channel.
[0015] In an optional embodiment, the second discharge structure also includes a second summary discharge port, and the second feed structure also includes a second feed port, the second feed port is located on the side wall of the heat exchange shell close to the first end face, and the second summary discharge port is located on the side wall of the heat exchange shell close to the second end face.
[0016] In an optional embodiment, the second feed structure further includes a second feed channel, the second feed port is located at an inlet end of the second feed channel, and an outlet end of the second feed channel is connected to an inlet of the second medium flow channel.
[0017] In an optional embodiment, the second discharge structure further includes a second discharge channel, the second discharge channel is connected to the outlet of the second medium flow channel, and the second aggregate discharge port is located at the end of the second discharge channel.
[0018] In an optional embodiment, the heat exchange shell and the heat exchange plates are both made of ceramic.
[0019] In a second aspect, the utility model provides a heat exchange system, comprising the ceramic counterflow plate heat exchanger of any one of the aforementioned embodiments.
[0020] The beneficial effects of the embodiments of the utility model are as follows: a plurality of layers of heat exchange plates are arranged at intervals from top to bottom in the heat exchange shell, a flow channel is formed between two adjacent layers of heat exchange plates, and the flow channels are not interconnected, a first discharge structure for discharging the first medium and a second feed structure for feeding the second medium are arranged at one end of the heat exchange shell, and a first feed structure for feeding the first medium and a second discharge structure for discharging the second medium are arranged at the other opposite end of the heat exchange shell, the second medium flow channel is blocked by means of the first discharge plugging member and the first feed plugging member, the first medium flow channel is blocked by the second feed plugging member and the second discharge plugging member, the first medium is discharged and the second medium is fed at one end, and the first medium is fed and the second medium is discharged at the other end. The ceramic countercurrent plate heat exchanger provided by the utility model has a simple structure, and can achieve a heat exchange effect of nearly complete countercurrent contact between the first medium and the second medium by alternately setting the first medium flow channel and the second medium flow channel. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0022] Figure 1 A three-dimensional diagram of a ceramic counter-flow plate heat exchanger provided in an embodiment of the utility model;
[0023] Figure 2 for Figure 1 Side view of the ceramic counterflow plate heat exchanger;
[0024] Figure 3 for Figure 1 Front view of the ceramic counterflow plate heat exchanger;
[0025] Figure 4 for Figure 1 Rear view of a ceramic counterflow plate heat exchanger.
[0026] Icon: 100-ceramic countercurrent plate heat exchanger; 001-flow channel; 002-first medium flow channel; 003-second medium flow channel; 004-first end face; 005-second end face; 110-heat exchange shell; 120-heat exchange plate; 130-first discharge structure; 131-first discharge plugging piece; 132-first aggregate discharge port; 133-first discharge channel; 150-second feed structure; 151-second feed plugging piece; 152-second feed port; 153-second feed channel; 160-second discharge structure; 161-second discharge plugging piece. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0031] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0032] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] like Figure 1 As shown, the embodiment of the utility model provides a ceramic counterflow plate heat exchanger 100, including a heat exchange shell 110, in which multiple layers of heat exchange plates 120 are arranged from top to bottom, and a flow channel 001 is formed between two adjacent layers of heat exchange plates, and the flow channels 001 are not connected to each other. The multiple flow channels 001 formed from top to bottom by the multiple layers of heat exchange plates 120 are divided into a first medium flow channel 002 for the circulation of the first medium and a second medium flow channel 003 for the circulation of the second medium.
[0034] The types of the first medium and the second medium are not limited, for example, the first medium may be a high-temperature medium, and the second medium may be a low-temperature medium, and the ceramic counterflow plate heat exchanger 100 is used to realize heat exchange between the first medium and the second medium. In the heat exchange space inside the heat exchange housing 110, the heat exchange plate 120 extends from one end to the other end opposite thereto, so that the first medium and the second medium are mixed with each other in the heat exchange space and flow independently of each other.
[0035] In some embodiments, to improve the heat exchange effect, the first medium flow channels 002 and the second medium flow channels 003 are alternately arranged, the flow channels 001 adjacent to the first medium flow channels 002 are all second medium flow channels 003, and the flow channels 001 adjacent to the second medium flow channels 003 are all first medium flow channels 002.
[0036] Specifically, flow channels 001 are numbered from top to bottom as 1, 2, 3, 4 to 2n, 2n+1, 2n+2 (specially noted that the flow channel numbering is only for the convenience of description), and even-numbered flow channels are in Figure 1 The right side of the flow channel converges as the inlet of medium A, and the left side of the flow channel converges as the outlet of medium A. The odd-numbered flow channels have a converging port on the left side of the front as the inlet of medium B, and a converging port on the right side of the back as the outlet of medium B.
[0037] In order to achieve countercurrent contact between the first medium and the second medium, the inventor has improved the structure of the feed and discharge, and a first discharge structure 130 for discharging the first medium and a second feed structure 150 for discharging the second medium are provided at one end of the heat exchange shell 110, and a first feed structure for discharging the first medium and a second discharge structure 160 for discharging the second medium are provided at the other opposite end of the heat exchange shell 110. The feed end of the first medium is the discharge end of the second medium, and the discharge end of the first medium is the feed end of the second medium, so that countercurrent contact between the two media is achieved in the ceramic countercurrent plate heat exchanger 100.
[0038] The heat exchange shell 110 has a first end surface 004 and a second end surface 005 opposite to the first end surface 004. The feed end of the first medium is located at the second end surface 005, and the discharge end of the first medium is located at the first end surface 004. Figure 1The arrow from the second end face 005 to the first end face 004 is the flow direction of the first medium.
[0039] The first discharge structure 130 includes a plurality of first discharge sealing members 131 , and the first feed structure (not shown) includes a plurality of first feed sealing members, so as to block the second medium flow channel 003 through the plurality of first discharge sealing members 131 and the plurality of first feed sealing members. Figure 1 Only the first discharging structure 130 is shown in the figure. The first feeding structure is substantially the same as the first discharging structure 130 . The specific structure of the first feeding structure will not be repeated here. The specific content of the first discharging structure 130 may be referred to.
[0040] like Figure 2 As shown, a plurality of first discharge blocking members 131 are used to block the second medium flow channel 003 at the end, and only the first medium flow channel 002 flows out from the end. Figure 2 Only the side view of the first end face 004 is shown, and the side view of the second end face 005 is substantially the same as that of the first end face 004 . The second medium flow channel 003 is blocked by a plurality of first feed blocking members, and the first medium enters the heat exchanger only through the first medium flow channel 002 .
[0041] In some embodiments, the first discharge structure 130 further includes a first summary discharge port 132. Correspondingly, the first feed structure further includes a first feed port. The first summary discharge port 132 is located on the first end surface 004 of the heat exchange shell 110, and the first feed port is located on the second end surface 005 of the heat exchange shell 110. The first summary discharge port 132 is a summary discharge port that summarizes the materials output from the end of the first medium flow channel 002 and then outputs them. The first summary discharge port 132 can be an opening located at the end for connecting external equipment. The first feed port can also be an opening at the end for connecting the feeding equipment, so that the first medium enters the first feed structure from the first feed port.
[0042] Furthermore, the first discharge structure 130 further includes a first discharge channel 133, which is connected to the outlet of the first medium flow channel 002, and the first aggregate discharge port 132 is located at the end of the first discharge channel 133. Near the first end face 004, the first medium flowing out of the first medium flow channel 002 is collected through the first discharge channel 133 and output from the first aggregate discharge port 132.
[0043] Similarly, the first feed structure also includes a first feed channel, the first feed port is located at the inlet end of the first feed channel, and the outlet end of the first feed channel is connected to the inlet of the first medium flow channel 002. The first medium enters the first feed channel from the first feed port located at the second end surface 005, and then enters the heat exchanger through the first medium flow channel 002.
[0044] Please combine Figure 1 , Figure 3 and Figure 4 The second feed structure 150 includes a plurality of second feed blocking members 151, and the second discharge structure 160 includes a plurality of second discharge blocking members 161, so as to block the first medium flow channel 002 through the plurality of second feed blocking members 151 and the plurality of second discharge blocking members 161. Near the first end face 004, the first medium flow channel 002 is blocked by the plurality of second feed blocking members 151, and the second medium enters the heat exchanger only through the second medium flow channel 003; near the second end face 005, the first medium flow channel 002 is blocked by the plurality of second discharge blocking members 161, and only the second medium flow channel 003 can be discharged through the second discharge structure 160.
[0045] In some embodiments, the second discharge structure 160 further includes a second aggregate discharge port (not shown), and the second feed structure 150 further includes a second feed port 152, which is located on the side wall of the heat exchange shell 110 near the first end face 004, and the second aggregate discharge port is located on the side wall of the heat exchange shell 110 near the second end face 005. On the side wall near the first end face 004, the first medium flow channel 002 is blocked by the second feed plugging member 151, and the second medium entering from the second feed port 152 enters the heat exchanger only through the second medium flow channel 003; on the side wall near the second end face 005, the first medium flow channel 002 is blocked by the second discharge plugging member 161, and only the second medium flow channel 003 can be discharged from the second discharge structure 160, and the second aggregate discharge port is outputted in aggregate.
[0046] Figure 1 Only the second feeding structure 150 is shown, and the specific structure of the second discharging structure 160 is similar to that of the second feeding structure 150. Figure 1 The arrow extending from the second feed structure 150 to the second discharge structure 160 in FIG. 1 represents the flow direction of the second medium.
[0047] Furthermore, the second feed structure 150 further includes a second feed channel 153, a second feed port 152 is located at the inlet end of the second feed channel 153, and the outlet end of the second feed channel 153 is connected to the inlet of the second medium flow channel 003. The second medium is introduced from the second feed port 152 through an external pipeline, and then enters the heat exchanger from the second medium flow channel 003 after passing through the second feed channel 153.
[0048] Similarly, the second discharge structure 160 also includes a second discharge channel (not shown), which is connected to the outlet of the second medium flow channel 003, and the second aggregate discharge port is located at the end of the second discharge channel. On the side wall close to the second end face 005, only a plurality of second medium flow channels 003 can discharge into the second discharge channel for aggregation, and are aggregated and output from the second aggregate discharge port to enter the next process.
[0049] In some embodiments, the heat exchange shell 110 and the heat exchange plate 120 may both be made of ceramics, such as high temperature resistant ceramics such as silicon carbide ceramics or corundum ceramics, and the heat exchange plate 120 may be a ceramic plate.
[0050] In some embodiments, the first discharge sealing member 131, the first feed sealing member, the second feed sealing member 151, and the second discharge sealing member 161 can be made of commonly used sealing materials to seal the corresponding flow channel 001, can be integrally formed with the multi-layer heat exchange plate 120, or a sealing plate can be connected to the end of the heat exchange plate 120 by welding or other methods to seal the corresponding flow channel 001.
[0051] The embodiment of the utility model also provides a heat exchange system, including the above-mentioned ceramic countercurrent plate heat exchanger 100, and other chemical equipment to form a complete heat exchange system. The improvement of the ceramic countercurrent plate heat exchanger 100 can improve the heat exchange effect of the entire heat exchange system, and achieve nearly complete countercurrent contact between the first medium and the second medium.
[0052] In summary, the utility model provides a ceramic counter-flow plate heat exchanger and a heat exchange system, which uses multiple layers of heat exchange plates to form multiple flow channels, and the flow channels are not interconnected, and the first medium is discharged at one end and the second medium is fed in, and the first medium is fed in and the second medium is discharged at the other end, and the first medium and the second medium can achieve nearly complete counter-flow during the heat exchange process. The ceramic counter-flow plate heat exchanger provided by the utility model has a simple structure and can achieve high-temperature heat exchange of 1400°C.
[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A ceramic countercurrent plate heat exchanger, characterized in that: The heat exchange housing comprises a plurality of heat exchange plates arranged at intervals from top to bottom in the heat exchange housing, a flow channel is formed between two adjacent layers of the heat exchange plates, and the flow channels are not interconnected, and the plurality of flow channels formed from top to bottom are divided into a first medium flow channel for the flow of a first medium and a second medium flow channel for the flow of a second medium; A first discharge structure for discharging a first medium and a second feed structure for feeding a second medium are provided at one end of the heat exchange shell, and a first feed structure for feeding the first medium and a second discharge structure for discharging the second medium are provided at the other opposite end of the heat exchange shell; The first discharge structure includes a plurality of first discharge blocking members, and the first feed structure includes a plurality of first feed blocking members, so as to block the second medium flow channel through the plurality of first discharge blocking members and the plurality of first feed blocking members; The second material feeding structure includes a plurality of second material feeding blocking pieces, and the second material discharging structure includes a plurality of second material discharging blocking pieces, so as to block the first medium flow channel by the plurality of second material feeding blocking pieces and the plurality of second material discharging blocking pieces.
2. The ceramic counterflow plate heat exchanger according to claim 1, characterized in that: The first medium flow channels and the second medium flow channels are alternately arranged, and the flow channels adjacent to the first medium flow channels are all the second medium flow channels.
3. The ceramic counterflow plate heat exchanger according to claim 1 or 2, characterized in that: The heat exchange shell has a first end face and a second end face opposite to the first end face, the first discharge structure also includes a first aggregate discharge port, the first feed structure also includes a first feed port, the first aggregate discharge port is located on the first end face of the heat exchange shell, and the first feed port is located on the second end face of the heat exchange shell.
4. The ceramic counterflow plate heat exchanger according to claim 3, characterized in that: The first discharge structure further includes a first discharge channel, the first discharge channel is in communication with the outlet of the first medium flow channel, and the first aggregate discharge port is located at an end of the first discharge channel.
5. The ceramic counterflow plate heat exchanger according to claim 3, characterized in that: The first feed structure further includes a first feed channel, the first feed port is located at an inlet end of the first feed channel, and an outlet end of the first feed channel is connected to an inlet end of the first medium flow channel.
6. The ceramic counterflow plate heat exchanger according to claim 3, characterized in that: The second discharge structure also includes a second summary discharge port, and the second feed structure also includes a second feed port, the second feed port is located on the side wall of the heat exchange shell close to the first end surface, and the second summary discharge port is located on the side wall of the heat exchange shell close to the second end surface.
7. The ceramic counterflow plate heat exchanger according to claim 6, characterized in that: The second feed structure further includes a second feed channel, the second feed port is located at the inlet end of the second feed channel, and the outlet end of the second feed channel is connected to the inlet of the second medium flow channel.
8. The ceramic counterflow plate heat exchanger according to claim 6, characterized in that: The second discharge structure further includes a second discharge channel, the second discharge channel is in communication with the outlet of the second medium flow channel, and the second aggregate discharge port is located at an end of the second discharge channel.
9. The ceramic counterflow plate heat exchanger according to claim 1, characterized in that: The heat exchange shell and the heat exchange plate are both made of ceramic.
10. A heat exchange system, characterized in that: A ceramic counterflow plate heat exchanger comprising any one of claims 1-9.