Combined spiral-plate heat exchanger for chemical production

Abstract

The utility model discloses a combined spiral plate heat exchanger for chemical industry production, which comprises a tank body and a cold fluid support ring, the cold fluid support ring is arranged in the tank body, a hot fluid support ring is arranged in the tank body on one side of the cold fluid support ring, and the hot fluid support ring is arranged in the tank body on the other side of the cold fluid support ring. Double-layer spiral channel steel plates are arranged outside the cold fluid supporting ring and the hot fluid supporting ring, multiple sets of distance fixing columns are arranged between the two sets of double-layer spiral channel steel plates, interlayers between the two sets of double-layer spiral channel steel plates are cold fluid channels, and the adjacent interlayers are hot fluid channels. The cold fluid supporting ring is connected with the cold fluid channel, and the hot fluid supporting ring is connected with the hot fluid channel. According to the utility model, not only are convenient opposite countercurrent spiral heat exchange and convenient linkage opening of the heat exchanger realized, but also the inside of the heat exchanger can be quickly maintained by rotating and adjusting the connection of the connecting port, and the convenience of the connection of the connecting port is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral plate heat exchangers, in particular to a combined spiral plate heat exchanger used in chemical production. Background Art

[0002] The spiral plate heat exchanger is a heat exchanger that is made of two parallel metal plates rolled into two spiral channels, and the heat exchange between the hot and cold fluids is carried out through the spiral plate wall. There are two types of spiral plate heat exchangers: detachable and non-detachable. The spiral plate heat exchanger has the advantages of small size, compact equipment, high heat transfer efficiency, and low metal consumption. The traditional spiral plate heat exchanger is not conducive to adjusting the docking interface. In order to adjust the docking interface more flexibly, a combined spiral plate heat exchanger for chemical production is proposed.

[0003] For example, a combined spiral plate heat exchanger disclosed in the authorization announcement number CN212931143U includes a shell, a first mounting ring and a second mounting ring are fixedly connected to the two sides of the shell surface, a first sealing plate and a second sealing plate are respectively arranged on the left side of the first mounting ring and the right side of the second mounting ring, a fixing groove is provided on the left side of the first mounting ring and the right side of the second mounting ring, and a limiting groove is provided on the top and the bottom of the inner wall of the fixing groove;

[0004] Although the sealing plate can be installed and fixed simply and conveniently by using the fixing groove and the fixing column, the number of fixing bolts used can be reduced, the trouble of installation and removal can be reduced, the fixing methods can be increased, and the firmness of the sealing plate can be improved. The sealing performance of the connection between the sealing plate and the spiral channel can be effectively improved by the sealing gasket, the sealing groove, the sealing ring and the special-shaped protrusion, so as to prevent the liquid inside the heat exchanger from penetrating and leaking through the gap;

[0005] However, the problem that the existing spiral plate heat exchanger is not conducive to convenient countercurrent spiral heat exchange and convenient linkage opening of the heat exchanger during use, is not conducive to rotating and adjusting the connection port and quickly maintaining the inside of the heat exchanger, affects the convenience of interface connection. Utility Model Content

[0006] The purpose of the utility model is to provide a combined spiral plate heat exchanger for chemical production, so as to solve the problem proposed in the above background technology that the spiral plate heat exchanger is not convenient for convenient countercurrent spiral heat exchange and convenient linkage opening of the heat exchanger, is not conducive to rotating and adjusting the connection of the connection port and quickly maintaining the inside of the heat exchanger, which affects the convenience of the interface connection.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined spiral plate heat exchanger for chemical production, comprising a tank body and a cold fluid support ring, wherein a cold fluid support ring is installed inside the tank body, and a hot fluid support ring is installed inside the tank body on one side of the cold fluid support ring, and double-layer spiral channel steel plates are arranged outside the cold fluid support ring and the hot fluid support ring, and multiple groups of distance columns are arranged between the two groups of double-layer spiral channel steel plates, the interlayer between the two groups of double-layer spiral channel steel plates is a cold fluid channel, and the adjacent interlayer is a hot fluid channel, the cold fluid support ring is connected to the cold fluid channel, and The hot fluid support ring is connected to the hot fluid channel, a cold fluid inlet is installed on the top of the tank body, and the cold fluid inlet is connected to the cold fluid channel, a hot fluid outlet is installed on the top of the tank body on one side of the cold fluid inlet, and the hot fluid outlet is connected to the hot fluid channel, a left sealing cover is movably installed at one end of the tank body, and a right sealing cover is movably installed at the other end of the tank body, a cold fluid outlet is installed on the side wall of the left sealing cover, and the cold fluid outlet is connected to the cold fluid support ring, and a hot fluid inlet is installed on the side wall of the right sealing cover, and the hot fluid inlet is connected to the hot fluid support ring.

[0008] Preferably, a left supporting leg is arranged outside the tank body, an auxiliary shaft is movably mounted on the top end of the left supporting leg, and the tank body is movably connected to the left supporting leg via the auxiliary shaft.

[0009] Preferably, a right supporting leg is provided on one side of the left supporting leg, and a rotating box is installed on the side wall of the right supporting leg.

[0010] Preferably, a servo motor is installed on the inner wall of the rotating box, and a worm is installed on the output end of the servo motor.

[0011] Preferably, a driving shaft is movably installed inside the rotating box on one side of the worm, a worm wheel is mounted on the surface of the driving shaft, the worm and the worm wheel are meshed with each other, and the driving shaft is connected to the tank body.

[0012] Preferably, fixed blocks are symmetrically mounted on the outer wall of the tank body, a screw is mounted on one end of each of the fixed blocks, a linkage shaft is mounted on one end of each of the screws close to the fixed blocks, and the screw is movably connected to the fixed block via the linkage shaft.

[0013] Preferably, fixing buckles are installed on the side walls of the left sealing cover and the right sealing cover, and the fixing buckles are fixedly connected to the left sealing cover and the right sealing cover respectively.

[0014] Preferably, a nut is mounted on the surface of the screw, and the nut is threadably connected to the screw.

[0015] Compared with the prior art, the beneficial effects of the utility model are: the spiral plate heat exchanger not only realizes convenient countercurrent spiral heat exchange and convenient linkage opening of the heat exchanger, but also facilitates the rotation and adjustment of the connection port and the rapid maintenance of the inside of the heat exchanger, and improves the convenience of the interface connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the tank body of the utility model;

[0018] Figure 3 It is a side view structural schematic diagram of the utility model;

[0019] Figure 4 It is a front cross-sectional structural schematic diagram of the rotary box of the utility model;

[0020] Figure 5 It is a front view cross-sectional structural schematic diagram of the tank body of the utility model;

[0021] Figure 6 It is a schematic diagram of the side cross-sectional structure of the spiral channel of the utility model.

[0022] In the figure: 1. left supporting leg; 2. right supporting leg; 3. auxiliary shaft; 4. cold fluid inlet; 5. hot fluid outlet; 6. tank body; 7. left sealing cover; 8. nut; 9. screw; 10. fixing buckle; 11. linkage shaft; 12. fixing block; 13. cold fluid outlet; 14. rotating box; 15. hot fluid inlet; 16. right sealing cover; 17. driving shaft; 18. worm; 19. worm gear; 20. servo motor; 21. cold fluid support ring; 22. hot fluid support ring; 23. double-layer spiral channel steel plate; 24. spacing column; 25. cold fluid channel; 26. hot fluid channel. DETAILED DESCRIPTION

[0023] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0024] See also Figure 1-6The utility model provides an embodiment: a combined spiral plate heat exchanger for chemical production, including a tank body 6 and a cold fluid support ring 21, the cold fluid support ring 21 is installed inside the tank body 6, a hot fluid support ring 22 is installed inside the tank body 6 on one side of the cold fluid support ring 21, a double-layer spiral channel steel plate 23 is arranged outside the cold fluid support ring 21 and the hot fluid support ring 22, and a plurality of groups of spacing columns 24 are arranged between the two groups of double-layer spiral channel steel plates 23, the interlayer between the two groups of double-layer spiral channel steel plates 23 is a cold fluid channel 25, and the adjacent interlayer is a hot fluid channel 26, the cold fluid support ring 21 is connected to the cold fluid channel 25, and the hot fluid support ring 22 is connected to the hot fluid support ring 21. The support ring 22 is connected to the hot fluid channel 26, a cold fluid inlet 4 is installed on the top of the tank body 6, and the cold fluid inlet 4 is connected to the cold fluid channel 25, a hot fluid outlet 5 is installed on the top of the tank body 6 on one side of the cold fluid inlet 4, and the hot fluid outlet 5 is connected to the hot fluid channel 26, a left sealing cover 7 is movably installed on one end of the tank body 6, and a right sealing cover 16 is movably installed on the other end of the tank body 6, a cold fluid outlet 13 is installed on the side wall of the left sealing cover 7, and the cold fluid outlet 13 is connected to the cold fluid support ring 21, a hot fluid inlet 15 is installed on the side wall of the right sealing cover 16, and the hot fluid inlet 15 is connected to the hot fluid support ring 22;

[0025] First, the device is connected to an external controller and an external circuit. When it is needed, the hot fluid is connected to the hot fluid inlet 15 through a pipeline, and the cold fluid is connected to the cold fluid inlet 4 through a pipeline. The hot fluid enters the interior of the hot fluid support ring 22 after passing through the hot fluid inlet 15, and then enters the interior of the hot fluid channel 26 through the hot fluid support ring 22. At the same time, the cold fluid enters the interior of the cold fluid channel 25 after passing through the cold fluid inlet 4. The two fluids move in the opposite direction inside the tank body 6, and the cold fluid absorbs the heat of the hot fluid through the double-layer spiral channel steel plate 23. Then, the cooled hot fluid is discharged through the hot fluid outlet 5, and the cold fluid that has absorbed the heat enters the interior of the cold fluid support ring 21, and then passes through the cold fluid The body support ring 21 is discharged from the cold fluid outlet 13 to complete the heat exchange work of two different fluids. When the positions of the connection ports are different and the connection needs to be adjusted, the servo motor 20 is turned on by external control, and the servo motor 20 drives the worm 18 to rotate. Under the mutual engagement of the worm 18 and the worm wheel 19, the worm 18 drives the worm wheel 19 to rotate, and the worm wheel 19 drives the drive shaft 17 to rotate. Under the support of the left support leg 1 and the right support leg 2, and under the active cooperation of the auxiliary shaft 3, the drive shaft 17 drives the tank body 6 to rotate, and the tank body 6 drives each connection port to rotate to adjust the position of the connection port to complete the docking work of the connection port, realizing convenient countercurrent spiral heat exchange, facilitating the rotation and adjustment of the connection port, and improving the convenience of connection;

[0026] A left supporting leg 1 is arranged outside the tank body 6, an auxiliary shaft 3 is movably mounted on the top of the left supporting leg 1, and the tank body 6 is movably connected to the left supporting leg 1 through the auxiliary shaft 3;

[0027] A right supporting leg 2 is provided on one side of the left supporting leg 1, and a rotating box 14 is installed on the side wall of the right supporting leg 2;

[0028] A servo motor 20 is installed on the inner wall of the rotating box 14, and the servo motor 20 plays a role of power driving. A worm 18 is installed at the output end of the servo motor 20. A drive shaft 17 is movably installed inside the rotating box 14 on one side of the worm 18. A worm gear 19 is mounted on the surface of the drive shaft 17, and the worm 18 and the worm gear 19 are meshed with each other, and the drive shaft 17 is connected to the tank body 6;

[0029] A fixing block 12 is symmetrically mounted on the outer wall of the tank body 6, a screw rod 9 is mounted on one end of each fixing block 12, a linkage shaft 11 is mounted on one end of each fixing block 12, and the screw rod 9 is movably connected to the fixing block 12 via the linkage shaft 11;

[0030] A fixing buckle 10 is installed on the side wall of the left sealing cover 7 and the right sealing cover 16, and the fixing buckle 10 is fixedly connected with the left sealing cover 7 and the right sealing cover 16 respectively. A nut 8 is sleeved on the surface of the screw rod 9, and the nut 8 is threadedly connected with the screw rod 9;

[0031] When it is necessary to perform maintenance on the inside of the tank body 6, rotate the nut 8, and under the threaded connection between the nut 8 and the screw 9, move the nut 8 away from the fixing buckle 10, and then rotate the screw 9 to disengage the screw 9 from the inside of the fixing buckle 10. Under the support of the fixing block 12, the screw 9 rotates around the linkage shaft 11 to disengage the left sealing cover 7 or the right sealing cover 16 from the tank body 6, and then rotate the left sealing cover 7 or the right sealing cover 16 to open the tank body 6, so as to facilitate the maintenance of the inside of the tank body 6, thereby realizing convenient linkage opening of the heat exchanger and facilitating rapid maintenance of the inside of the heat exchanger.

[0032] Working principle: First, the device is connected to an external controller and an external circuit. When it is needed, the hot fluid is connected to the hot fluid inlet 15 through a pipe, and the cold fluid is connected to the cold fluid inlet 4 through a pipe. The hot fluid enters the interior of the hot fluid support ring 22 after passing through the hot fluid inlet 15, and then enters the interior of the hot fluid channel 26 through the hot fluid support ring 22. At the same time, the cold fluid enters the interior of the cold fluid channel 25 after passing through the cold fluid inlet 4. The two fluids move in reverse inside the tank body 6, and the cold fluid absorbs the heat of the hot fluid through the double-layer spiral channel steel plate 23. Then, the cooled hot fluid is discharged through the hot fluid outlet 5, and the cold fluid that has absorbed the heat enters the interior of the cold fluid support ring 21, and then is discharged from the cold fluid outlet 13 through the cold fluid support ring 21, so as to complete the two different For the heat exchange work of the same fluid, when the position of the connection port is different and the connection needs to be adjusted, the servo motor 20 drives the worm 18 to rotate, the worm 18 drives the worm wheel 19 to rotate, the worm wheel 19 drives the drive shaft 17 to rotate, the drive shaft 17 drives the tank body 6 to rotate, and the tank body 6 drives each connection port to rotate to adjust the position of the connection port to complete the docking work of the connection port. When it is necessary to perform maintenance on the inside of the tank body 6, rotate the nut 8 to make the nut 8 away from the fixing buckle 10, and then rotate the screw 9 to disengage the screw 9 from the inside of the fixing buckle 10, and the screw 9 rotates with the linkage shaft 11 as the axis to disengage the left sealing cover 7 or the right sealing cover 16 from the tank body 6, and then rotate the left sealing cover 7 or the right sealing cover 16 to open the tank body 6 to facilitate the maintenance of the inside of the tank body 6 to complete the use of the combined spiral plate heat exchanger for chemical production.

[0033] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A combined spiral plate heat exchanger for chemical production, comprising a tank body (6) and a cold fluid support ring (21), characterized in that: A cold fluid support ring (21) is installed inside the tank body (6), and a hot fluid support ring (22) is installed inside the tank body (6) on one side of the cold fluid support ring (21). Double-layer spiral channel steel plates (23) are arranged outside the cold fluid support ring (21) and the hot fluid support ring (22), and multiple groups of spacing columns (24) are arranged between the two groups of double-layer spiral channel steel plates (23). The interlayer between the two groups of double-layer spiral channel steel plates (23) is a cold fluid channel (25), and the adjacent interlayer is a hot fluid channel (26). The cold fluid support ring (21) is connected to the cold fluid channel (25), and the hot fluid support ring (22) is connected to the hot fluid channel (26). The top of the tank body (6) is installed with a cold fluid support ring (21). A fluid inlet (4) is provided, and the cold fluid inlet (4) is connected to a cold fluid channel (25); a hot fluid outlet (5) is installed at the top of the tank body (6) on one side of the cold fluid inlet (4), and the hot fluid outlet (5) is connected to a hot fluid channel (26); a left sealing cover (7) is movably installed at one end of the tank body (6), and a right sealing cover (16) is movably installed at the other end of the tank body (6); a cold fluid outlet (13) is installed on the side wall of the left sealing cover (7), and the cold fluid outlet (13) is connected to a cold fluid support ring (21); a hot fluid inlet (15) is installed on the side wall of the right sealing cover (16), and the hot fluid inlet (15) is connected to a hot fluid support ring (22).

2. The combined spiral plate heat exchanger for chemical production according to claim 1, characterized in that: A left supporting leg (1) is arranged outside the tank body (6), an auxiliary shaft (3) is movably mounted on the top of the left supporting leg (1), and the tank body (6) is movably connected to the left supporting leg (1) via the auxiliary shaft (3).

3. The combined spiral plate heat exchanger for chemical production according to claim 2, characterized in that: A right supporting leg (2) is arranged on one side of the left supporting leg (1), and a rotating box (14) is installed on the side wall of the right supporting leg (2).

4. The combined spiral plate heat exchanger for chemical production according to claim 3, characterized in that: A servo motor (20) is installed on the inner wall of the rotating box (14), and a worm (18) is installed on the output end of the servo motor (20).

5. The combined spiral plate heat exchanger for chemical production according to claim 4, characterized in that: A driving shaft (17) is movably mounted inside the rotating box (14) on one side of the worm (18), a worm wheel (19) is mounted on the surface of the driving shaft (17), the worm (18) and the worm wheel (19) are meshed with each other, and the driving shaft (17) is connected to the tank body (6).

6. The combined spiral plate heat exchanger for chemical production according to claim 1, characterized in that: A fixing block (12) is symmetrically mounted on the outer wall of the tank body (6), a screw rod (9) is mounted on one end of each fixing block (12), a linkage shaft (11) is mounted on one end of each fixing block (12), and the screw rod (9) is movably connected to the fixing block (12) via the linkage shaft (11).

7. The combined spiral plate heat exchanger for chemical production according to claim 1, characterized in that: The side walls of the left sealing cover (7) and the right sealing cover (16) are both provided with fixing buckles (10), and the fixing buckles (10) are fixedly connected to the left sealing cover (7) and the right sealing cover (16) respectively.

8. The combined spiral plate heat exchanger for chemical production according to claim 6, characterized in that: A nut (8) is sleeved on the surface of the screw rod (9), and the nut (8) is threadedly connected to the screw rod (9).

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