Silicon carbide heat exchanger

Abstract

The invention discloses a silicon carbide heat exchanger, and relates to the technical field of silicon carbide heat exchangers, the silicon carbide heat exchanger comprises a silicon carbide heat exchanger body and fixed sealing heads arranged on the two sides of the silicon carbide heat exchanger body, and first flange plates are fixed to the two ends of the surface of the silicon carbide heat exchanger body; the sides, close to each other, of the silicon carbide heat exchanger body and the fixed end sockets are attached, a second flange plate is fixed to each fixed end socket, the first flange plates and the second flange plates are provided with quick locking assemblies, and by arranging the quick locking assemblies, the fixed end sockets can be quickly installed on the silicon carbide heat exchanger body conveniently; in the whole mounting process, a multi-position clamping mode is adopted, and the locking frame can be quickly and automatically locked after clamping, so that on one hand, the convenience and rapidity during mounting of the silicon carbide heat exchanger body and the fixed end socket are guaranteed; and on the other hand, the stability and the sealing performance during butt joint of the silicon carbide heat exchanger body and the fixed end socket are effectively guaranteed through the locking frame with the multi-position design.

Description

Technical Field

[0001] The present invention relates to the technical field of silicon carbide heat exchangers, and specifically to a silicon carbide heat exchanger. Background Art

[0002] A silicon carbide heat exchanger is a new type of heat exchanger that uses silicon carbide ceramic material as a heat transfer medium. Due to the excellent properties of silicon carbide ceramics such as corrosion resistance, high temperature resistance, high thermal conductivity, high hardness, and wear resistance, silicon carbide ceramic heat exchangers are suitable for use requirements in high temperature and corrosion-resistant environments.

[0003] The patent with the publication number CN219511381U discloses an anti-corrosion and thermally stable silicon carbide heat exchanger, including a silicon carbide heat exchanger and a loading and unloading mechanism. The silicon carbide heat exchanger includes a housing and two fixed end covers. The two fixed end covers are respectively detachably installed at the left and right ends of the housing. The loading and unloading mechanism is arranged on the silicon carbide heat exchanger and is used for installing and disassembling the fixed end covers. The loading and unloading mechanism is divided into four groups, and the loading and unloading mechanism includes a first mounting block, and the first mounting block is fixedly installed on the outer side of the housing. By rotating the round rod forward and backward, the worm is driven to rotate forward and backward, thereby driving the fixed plate to lift and lower, so that the clamping rod is inserted into or disengaged from the clamping groove, and thus the installation or disassembly of the fixed end cover can be completed. The entire loading and unloading process is simple and convenient, solving the problem of time-consuming and laborious during the loading and unloading process by bolt fixation.

[0004] However, the following problems still exist during the implementation of the above device: The installation of the fixed end cover adopts a driving method of a worm and a worm gear, and subsequent screws and threaded sleeves are still used. Such a driving method still takes the bolt installation method as the main body, and the installation process is still relatively cumbersome. The whole-process snap-fit self-locking installation method cannot be adopted, which greatly reduces the installation efficiency. Moreover, a four-group fixing method is adopted, and the fixing points for the entire fixed end cover are very few. There are only two symmetrical groups of fixing points on each fixed end cover, which greatly reduces the stability and sealing performance of the fixed end cover during installation. For this reason, a silicon carbide heat exchanger is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a silicon carbide heat exchanger to solve the problems raised in the above background art that the whole-process snap-fit self-locking installation method cannot be adopted, which greatly reduces the installation efficiency, and greatly reduces the stability and sealing performance of the fixed end cover during installation.

[0006] To achieve the above object, the present invention provides the following technical solutions: a silicon carbide heat exchanger, including a silicon carbide heat exchanger body and fixed heads arranged on both sides of the silicon carbide heat exchanger body. Both ends of the surface of the silicon carbide heat exchanger body are fixedly provided with first flange plates. The side of the silicon carbide heat exchanger body and the fixed head close to each other are in contact. Each fixed head is fixedly provided with a second flange plate. Sealing gaskets are arranged on the sides of the first flange plate and the second flange plate close to each other. The adjacent sealing gaskets are in contact with each other. A fixed ring is fixed on the fixed head, and the side of the fixed ring close to each other is fixed on the second flange plate. A quick locking assembly is arranged on the first flange plate and the second flange plate.

[0007] Preferably, the quick locking assembly includes a plurality of swing plates evenly and rotatably arranged on the mutually remote sides of the second flange plates. One end of each swing plate is fixedly provided with a locking frame capable of being clamped on the first flange plate and the second flange plate. A plurality of auxiliary springs are fixed on the mutually close sides of each swing plate and the fixed ring. A plurality of positioning square columns are evenly and fixedly arranged on the mutually close side of the second flange plates. The end of the positioning square column far from the second flange plate sequentially penetrates through the sealing gasket and the first flange plate and extends inward. An auxiliary bearing is arranged on the fixed ring. A plurality of driving frames are evenly fixedly arranged on the outer ring of the auxiliary bearing. An L-shaped baffle for clamping with the driving frame is fixedly arranged on the locking frame. A strip-shaped frame is fixedly arranged at the end of the driving frame far from the auxiliary bearing. A positioning frame is inserted into the strip-shaped frame. One end of the positioning frame is inserted on the positioning square column. A first T-shaped rod is inserted on the side of the positioning frame far from the silicon carbide heat exchanger body. A connecting plate is fixedly arranged at the end of the first T-shaped rod close to the silicon carbide heat exchanger body, and the connecting plate is fixed on the strip-shaped frame. A first spring is wound on each first T-shaped rod, and both ends of the first spring are fixed on the protruding end of the first T-shaped rod and the positioning frame.

[0008] Preferably, the quick locking assembly further includes two second T-shaped rods symmetrically fixed on each strip-shaped frame in the left-right direction. A lower pressing plate is slidably arranged on the adjacent two second T-shaped rods. A second spring is wound on each second T-shaped rod, and both ends of the second spring are fixed on the protruding end of the second T-shaped rod and the lower pressing plate. A locking plug plate is fixedly arranged on the side of the lower pressing plate close to the strip-shaped frame. The end of the locking plug plate far from the lower pressing plate penetrates into the strip-shaped frame and is attached to the positioning frame. A square slot for inserting the locking plug plate is opened at the end of the positioning frame close to the positioning square column. A plurality of fixing frames for cooperating with the lower pressing plate are evenly and fixedly arranged on the first flange plate.

[0009] Preferably, a support frame is fixedly arranged on one side of the positioning frame. The end of the support frame far from the positioning frame penetrates through the L-shaped baffle and is inserted on the locking frame. The driving frame and the support frame are in contact with each other.

[0010] Preferably, one end of the driving frame located in the L-shaped baffle is in a rod-shaped structure, and both sides of the inner cavity of the locking frame close to the silicon carbide heat exchanger body are in an inclined structure.

[0011] Preferably, one end of the positioning frame close to the positioning square column is provided with a chamfer, and one end of the positioning square column away from the second flange is provided with a chamfer.

[0012] Preferably, the number of the locking frames is at least five, the locking frames are in an arc-shaped structure as a whole, and the number of auxiliary springs on each group of the swing plates is at least two.

[0013] Preferably, transverse through holes are provided on both sides of each group of the strip frames and on the positioning frame.

[0014] Preferably, the lower pressing plate is an L-shaped structure as a whole.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by setting a quick locking component and utilizing the elastic rebound of multiple groups of auxiliary springs, a certain supporting force can be given to the swing plate when the fixed head is not installed, so that the swing plate and the locking frame can maintain an outward swing state, so that the first flange and the second flange on the silicon carbide heat exchanger body and the fixed head can be stably connected, and the design of multiple groups of positioning square columns can pre-insert and position the first flange and the second flange, so that the silicon carbide heat exchanger body and the fixed head can be pre-insert and positioned, and with the cooperation of the auxiliary bearing, the rotation angle of the driving frame can be changed, so that the driving frame can be used to change the swing angle of the locking frame, so that the first flange and the second flange can be quickly wrapped and positioned by using multiple groups of locking frames in different orientations, and the driving frame will make the lower pressure plate contact with the fixed frame when swinging, and as the driving frame rotates until it contacts with the L-shaped baffle and cannot When the rotation continues, the fixed fixing frame will prompt the lower pressure plate and the locking plug plate to move and disengage the locking plug plate from the square slot, thereby releasing the locking state of the positioning frame and utilizing the elastic rebound of the first spring to push the positioning frame to be quickly inserted into the positioning square column, thereby synchronously limiting the positions of the driving frame and the positioning square column, effectively avoiding the rotation of the driving frame and the displacement of the positioning square column, and then quickly fixing the first flange and the second flange, thereby facilitating the rapid installation of the fixed head on the silicon carbide heat exchanger body, and the entire installation process adopts a multi-point clamping method throughout the entire process, and the locking frame can be quickly and automatically locked after the clamping, which on the one hand ensures the convenience and speed of the installation of the silicon carbide heat exchanger body and the fixed head, and on the other hand, the locking frame with a multi-position design effectively ensures the stability and sealing of the silicon carbide heat exchanger body and the fixed head when they are docked. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the silicon carbide heat exchanger of the present invention; Figure 2 is Figure 1 An enlarged view of the structure at location A in Figure 3 A partial bottom view of the structure of the silicon carbide heat exchanger of the present invention; Figure 4 is Figure 3 An enlarged view of the structure at location B in Figure 5 A partial three-dimensional view of the structure of the quick locking component of the present invention; Figure 6 A partial cross-sectional view of the structure of the quick locking component of the present invention; Figure 7 A partial exploded view of the structure of the silicon carbide heat exchanger of the present invention; Figure 8 A three-dimensional view of the structure of the positioning frame and the support frame of the present invention.

[0017] In the figure: 1, the silicon carbide heat exchanger body; 2, the fixed head; 3, the first flange; 4, the second flange; 5, the sealing gasket; 6, the fixing ring; 7, the auxiliary bearing; 8, the swing plate; 9, the locking frame; 10, the auxiliary spring; 11, the driving frame; 12, the strip-shaped frame; 13, the L-shaped baffle; 14, the positioning frame; 15, the first T-shaped rod; 16, the first spring; 17, the positioning square column; 18, the fixing frame; 19, the lower pressing plate; 20, the locking plug; 21, the second T-shaped rod; 22, the second spring; 23, the square slot; 24, the support frame; 25, the transverse through hole. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Embodiment Please refer to Figures 1 - 8, the present invention provides a technical solution: a silicon carbide heat exchanger, including a silicon carbide heat exchanger body 1 and fixed end covers 2 arranged on both sides of the silicon carbide heat exchanger body 1. Both ends of the surface of the silicon carbide heat exchanger body 1 are fixed with first flange plates 3. The side of the silicon carbide heat exchanger body 1 and the fixed end cover 2 that are close to each other are in contact. Each group of fixed end covers 2 is fixed with a second flange plate 4. Sealing gaskets 5 are arranged on the sides of the first flange plate 3 and the second flange plate 4 that are close to each other. The adjacent sealing gaskets 5 are in contact with each other. A fixing ring 6 is fixed on the fixed end cover 2, and the side of the fixing ring 6 that is close to each other is fixed on the second flange plate 4. A quick locking assembly is arranged on the first flange plate 3 and the second flange plate 4. The quick locking assembly includes multiple groups of swing plates 8 that are evenly and rotatably installed on the side of the second flange plate 4 that is far from each other. One end of each group of swing plates 8 is fixed with a locking frame 9 that can be clamped on the first flange plate 3 and the second flange plate 4. Multiple groups of auxiliary springs 10 are fixed on the sides of each group of swing plates 8 and the fixing ring 6 that are close to each other. The number of locking frames 9 is at least five groups. The locking frame 9 is integrally in an arc structure. The number of auxiliary springs 10 on each group of swing plates 8 is at least two groups. The limitation on the number of locking frames 9 enables the locking frames 9 to be distributed at multiple positions on the first flange plate 3 and the second flange plate 4, improving the fixing effect. The locking frame 9 designed in an arc structure can make the locking frame 9 fit more closely with the first flange plate 3 and the second flange plate 4. And the limitation on the number of auxiliary springs 10 is to provide sufficient supporting force for the swing plate 8. Multiple groups of positioning square columns 17 are evenly fixed on the side of the second flange plate 4 that is close to each other. The end of the positioning square column 17 that is far from the second flange plate 4 sequentially penetrates through the sealing gasket 5 and the first flange plate 3 and extends inward. An auxiliary bearing 7 is arranged on the fixing ring 6. Multiple groups of driving frames 11 are evenly fixed on the outer ring of the auxiliary bearing 7. An L-shaped baffle 13 for clamping with the driving frame 11 is fixed on the locking frame 9. The end of the driving frame 11 in the L-shaped baffle 13 is in a rod-shaped structure. The two sides of the inner cavity of the locking frame 9 close to the silicon carbide heat exchanger body 1 are both in an inclined structure. The design of the end in a rod-shaped structure enables the driving frame 11 to move unobstructed in the L-shaped baffle 13. The design of both sides in an inclined structure enables the locking frame 9 to be clamped and positioned with the first flange plate 3 and the second flange plate 4 unobstructedly. A strip-shaped frame 12 is fixed at the end of the driving frame 11 that is far from the auxiliary bearing 7. A positioning frame 14 is inserted into the strip-shaped frame 12. Transverse through holes 25 are opened on both sides of each group of strip-shaped frames 12 and on the positioning frame 14. The design of the transverse through holes 25 facilitates the user to position the positioning frame 14 with an external auxiliary rod when pulling the positioning frame 14 out of the positioning square column 17, facilitating subsequent disassembly work. One end of the positioning frame 14 is inserted on the positioning square column 17. A support frame 24 is fixed on one side of the positioning frame 14. The end of the support frame 24 that is far from the positioning frame 14 penetrates through the L-shaped baffle 13 and is inserted on the locking frame 9. The driving frame 11 and the support frame 24 are in contact with each other. By setting the support frame 24, the driving frame 11 can be further supported and positioned.Effectively avoid the rotation of the driving frame 11. A first T-shaped rod 15 is inserted into the side of the positioning frame 14 away from the silicon carbide heat exchanger body 1. A connecting plate is fixed to one end of the first T-shaped rod 15 close to the silicon carbide heat exchanger body 1, and the connecting plate is fixed to the strip-shaped frame 12. A first spring 16 is wound around each group of first T-shaped rods 15, and both ends of the first spring 16 are fixed to the protruding end of the first T-shaped rod 15 and the positioning frame 14. The quick locking assembly further includes two groups of second T-shaped rods 21 symmetrically fixed to each group of strip-shaped frames 12 in the left-right direction. A lower pressing plate 19 is slidably arranged on the adjacent two groups of second T-shaped rods 21. A second spring 22 is wound around each group of second T-shaped rods 21, and both ends of the second spring 22 are fixed to the protruding end of the second T-shaped rod 21 and the lower pressing plate 19. A locking plug 20 is fixed to the side of the lower pressing plate 19 close to the strip-shaped frame 12. One end of the locking plug 20 away from the lower pressing plate 19 penetrates into the strip-shaped frame 12 and fits on the positioning frame 14. A square slot 23 for inserting the locking plug 20 is opened at one end of the positioning frame 14 close to the positioning square column 17. A plurality of groups of fixing frames 18 cooperating with the lower pressing plate 19 are evenly fixed on the first flange 3. The lower pressing plate 19 is integrally in an L-shaped structure. The L-shaped design of the lower pressing plate 19 can effectively prevent the lower pressing plate 19 from detaching when contacting the fixing frame 18. By setting the quick locking assembly, the entire installation process adopts a multi-point clamping method, and the locking frame 9 can be quickly and automatically locked after clamping. On the one hand, it ensures the convenience and rapidity of the installation of the silicon carbide heat exchanger body 1 and the fixed head 2. On the other hand, the locking frame 9 designed in multiple positions effectively ensures the stability and sealing performance when the silicon carbide heat exchanger body 1 and the fixed head 2 are butted. A chamfer is opened at one end of the positioning frame 14 close to the positioning square column 17, and a chamfer is opened at one end of the positioning square column 17 away from the second flange 4. The design of the chamfer can enable the positioning frame 14 and the positioning square column 17 to be stably inserted into the positioning square column 17 and the first flange 3 respectively. A handle is fixed to the outer ring of the auxiliary bearing 7. The design of the handle facilitates the user to rotate the outer ring of the auxiliary bearing 7.,

[0020] Working principle: Under the elastic rebound action of multiple groups of auxiliary springs 10, a certain supporting force can be given to the swing plate 8, so that the swing plate 8 and the locking frame 9 can maintain a swinging state outward when the silicon carbide heat exchanger body 1 and the fixed head 2 are not docked. Then the user docks the fixed head 2 with the two ends of the silicon carbide heat exchanger body 1, and the positioning square column 17 will be pre-inserted on the first flange 3 until the sealing gaskets 5 on the first flange 3 and the second flange 4 are in contact. At this time, the user turns the handle on the auxiliary bearing 7 to drive the multiple groups of driving frames 11 on the auxiliary bearing 7 to rotate synchronously. At this time, the driving frame 11 will drive the locking frame 9 to swing, and the locking frame 9 will be directly clamped on the first flange 3 and the second flange 4. When the driving frame 11 swings, it will make the lower pressure plate 19 contact with the fixed frame 18 in advance, and as the driving frame 11 rotates to contact with the L-shaped baffle 13 and cannot continue to rotate, the fixed frame 18 in a fixed position will prompt the lower pressure plate 19 and the locking plug plate 20 to move a certain distance, so that they will rotate together. The locking plug plate 20 is driven to move, and the locking plug plate 20 is completely disengaged from the square slot 23, that is, the locking plug plate 20 is disengaged from the positioning frame 14, so that the locking state of the positioning frame 14 can be quickly released. At this time, the first spring 16 that has been in a compressed state will rebound quickly and push the positioning frame 14 to be quickly inserted into the positioning square column 17, so that the driving frame 11 and the positioning square column 17 can be quickly positioned to prevent the driving frame 11 from rotating, and the stability of the positioning square column 17 after insertion is simultaneously improved, so that the first flange 3 and the second flange 4 can be quickly fixed, and then the two sets of fixed heads 2 can be quickly installed on both ends of the silicon carbide heat exchanger body 1. The whole installation process adopts a multi-point clamping method throughout the whole process, and the locking frame 9 can be quickly and automatically locked after the clamping, which ensures the convenience and rapidity of the silicon carbide heat exchanger body 1 and the fixed head 2 during installation on the one hand, and the multi-position design of the locking frame 9 effectively ensures the stability and sealing of the silicon carbide heat exchanger body 1 and the fixed head 2 during docking.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silicon carbide heat exchanger, comprising a silicon carbide heat exchanger body (1) and fixed heads (2) arranged on both sides of the silicon carbide heat exchanger body (1), characterized in that: A first flange (3) is fixed to both ends of the surface of the silicon carbide heat exchanger body (1), the silicon carbide heat exchanger body (1) and the fixed head (2) are in contact with each other, a second flange (4) is fixed to each group of the fixed heads (2), a sealing gasket (5) is provided on the side where the first flange (3) and the second flange (4) are in contact with each other, and adjacent sealing gaskets (5) are in contact with each other, a fixing ring (6) is fixed to the fixed head (2), and the side where the fixing ring (6) is in contact with each other is fixed to the second flange (4), and a quick locking assembly is provided on the first flange (3) and the second flange (4).

2. The silicon carbide heat exchanger according to claim 1, characterized in that: The quick locking assembly comprises a plurality of swing plates (8) which are evenly rotatably mounted on the side of the second flange (4) away from each other, a locking frame (9) which can be snapped onto the first flange (3) and the second flange (4) being fixed at one end of each swing plate (8), a plurality of auxiliary springs (10) being fixed on the side of each swing plate (8) and the fixing ring (6) which are close to each other, a plurality of positioning square columns (17) being evenly fixed on the side of the second flange (4) which are close to each other, an end of the positioning square column (17) which is away from the second flange (4) sequentially passes through the sealing gasket (5) and the first flange (3) and extends inwardly, an auxiliary bearing (7) is provided on the fixing ring (6), a plurality of drive frames (11) being evenly fixed on the outer ring of the auxiliary bearing (7), and the locking frame (9) which can be snapped onto the first flange (3) and the second flange (4) being fixed at one end of the swing plate (8) and the fixing ring (6) which are close to each other. An L-shaped baffle (13) for clamping with a driving frame (11) is fixed on the frame (9); a strip frame (12) is fixed on one end of the driving frame (11) away from the auxiliary bearing (7); a positioning frame (14) is inserted in the strip frame (12); one end of the positioning frame (14) is inserted on a positioning square column (17); a first T-shaped rod (15) is inserted on one side of the positioning frame (14) away from the silicon carbide heat exchanger body (1); a connecting plate is fixed on one end of the first T-shaped rod (15) close to the silicon carbide heat exchanger body (1), and the connecting plate is fixed on the strip frame (12); a first spring (16) is wound around each group of the first T-shaped rods (15), and both ends of the first spring (16) are fixed on the protruding ends of the first T-shaped rods (15) and the positioning frame (14).

3. The silicon carbide heat exchanger according to claim 2, characterized in that: The quick locking assembly also includes two groups of second T-shaped rods (21) symmetrically fixed on each group of strip frames (12) along the left-right direction, and lower pressure plates (19) are slidably arranged on two adjacent groups of the second T-shaped rods (21). A second spring (22) is wound around each group of the second T-shaped rods (21), and both ends of the second spring (22) are fixed to the protruding ends of the second T-shaped rods (21) and the lower pressure plate (19). A locking plug plate (20) is fixed to a side of the lower pressure plate (19) close to the strip frame (12), and one end of the locking plug plate (20) away from the lower pressure plate (19) passes through the strip frame (12) and fits on the positioning frame (14). A square slot (23) for inserting the locking plug plate (20) is provided at one end of the positioning frame (14) close to the positioning square column (17), and a plurality of fixing frames (18) for use with the lower pressure plate (19) are evenly fixed on the first flange (3).

4. The silicon carbide heat exchanger according to claim 2, characterized in that: A support frame (24) is fixed to one side of the positioning frame (14); an end of the support frame (24) away from the positioning frame (14) passes through the L-shaped baffle (13) and is inserted into the locking frame (9); and the driving frame (11) and the support frame (24) are in contact with each other.

5. The silicon carbide heat exchanger according to claim 2, characterized in that: One end of the driving frame (11) located inside the L-shaped baffle (13) is in a rod-shaped structure, and both sides of the inner cavity of the locking frame (9) close to the silicon carbide heat exchanger body (1) are in an inclined structure.

6. The silicon carbide heat exchanger according to claim 3, characterized in that: An end of the positioning frame (14) close to the positioning square column (17) is provided with a chamfer, and an end of the positioning square column (17) away from the second flange (4) is provided with a chamfer.

7. The silicon carbide heat exchanger according to claim 2, characterized in that: The number of the locking frames (9) is at least five, the locking frames (9) are in an arc-shaped structure as a whole, and the number of the auxiliary springs (10) on each set of the swing plates (8) is at least two.

8. The silicon carbide heat exchanger according to claim 2, characterized in that: Both sides of each group of the strip frames (12) and the positioning frame (14) are provided with transverse through holes (25).

9. The silicon carbide heat exchanger according to claim 3, characterized in that: The lower pressing plate (19) is in an L-shaped structure as a whole.

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