Enamel disc coil heat exchanger

Abstract

The application discloses a kind of enamelled disc disc tube heat exchanger, including condenser top cover, condenser bottom cover and multiple intermediate condensers being arranged between condenser top cover and condenser bottom cover, the bottom of condenser top cover, the top of condenser bottom cover and the top and bottom of intermediate condenser are all provided with material retaining ring, material cavity is arranged between two material retaining rings cooperating with each other, two material retaining rings cooperating with each other are sealedly connected by double-layer sealing device, the middle of condenser top cover is provided with material inlet, material inlet penetrates condenser top cover and is connected with the material cavity of uppermost layer, the middle of condenser bottom cover is provided with material outlet, material outlet penetrates condenser bottom cover and is connected with the material cavity of lowermost layer, material through pipe that is connected with adjacent two material cavities is arranged on the intermediate condenser, condenser top cover, multiple intermediate condensers and condenser bottom cover are provided with condensing cavity circulating device and condensing coil circulating device that are connected with each other.

Description

Technical Field

[0001] This invention relates to the field of enamel heat exchanger technology, specifically to an enamel disc coil heat exchanger. Background Technology

[0002] Enameled disc heat exchangers are widely used in high-efficiency heat exchange applications in chemical reactions such as petrochemicals, fine chemicals, pesticides, dyes, and pharmaceuticals. Their working principle involves using cooling media such as chilled brine, circulating water, or heat transfer oil to convert gas or vapor into liquid or gas, and to rapidly cool or heat the medium at the enamel-lined contact surface of the container to a suitable operating condition, thereby achieving condensation and heating processes.

[0003] Existing products on the market have the following drawbacks: 1. High material resistance leads to uneven medium distribution and easy flow deviation. 2. Poor cooling effect; the single jacket cavity is too small and lacks any flow guiding measures, causing the medium to overflow directly from the inlet to the outlet without circulating within the cavity. Rapid cooling is impossible, requiring a larger heat exchange area. 3. Design flaws; the structure uses a stacked combination of plates, with gaskets sealing the gap between them. The height of the gaskets determines the gap between the plates; the thicker the gasket, the larger the gap, causing laminar flow between the enamel surfaces, hindering timely heat transfer. Thinner gaskets soften under high pressure and high temperature, leading to sealing failure and leaks. When external bolts are tightened to a critical point, the upper and lower enamel surfaces come into contact, causing damage and rendering the equipment unusable. Frequent replacements result in significant production losses. Under negative pressure conditions, such as -0.35 MPa vacuum, the gasket deforms without a return mechanism, causing the gasket to expand and contract into the container, resulting in leaks. In severe cases, it can cause the medium inside the container to overflow, which can easily lead to safety accidents. Summary of the Invention

[0004] The purpose of this invention is to provide an enamel-plated disc coil heat exchanger.

[0005] An enamel-lined disc-coil heat exchanger includes a condenser top cover, a condenser bottom cover, and multiple intermediate condensers disposed between the condenser top cover and the condenser bottom cover. The bottom of the condenser top cover, the top of the condenser bottom cover, and the top and bottom of each intermediate condenser are each provided with a baffle ring. A material chamber is provided between two cooperating baffle rings, and the two cooperating baffle rings are sealed together by a double-layer sealing device. A material inlet is provided in the middle of the condenser top cover, penetrating the condenser top cover and communicating with the uppermost material chamber. A material outlet is provided in the middle of the condenser bottom cover, penetrating the condenser bottom cover and communicating with the lowermost material chamber. A material passage pipe is provided through each intermediate condenser, connecting two adjacent material chambers. A condenser chamber circulation device and a condenser coil circulation device are interconnected between the condenser top cover, the multiple intermediate condensers, and the condenser bottom cover.

[0006] Furthermore, the condenser coil circulation device includes a spiral lower condenser coil disposed at the top of the condenser bottom cover, a spiral upper condenser coil disposed at the bottom of the condenser top cover, and a serpentine middle condenser coil disposed at the top and bottom of the intermediate condenser. The lower condenser coil is connected to the lowest middle condenser coil, two adjacent middle condenser coils, the highest middle condenser coil, and the upper condenser coil through a condenser coil circulation pipe. The bottom of the condenser bottom cover is provided with a condenser coil inlet pipe connected to the lower condenser coil, and the top of the condenser top cover is provided with a condenser coil outlet pipe connected to the upper condenser coil.

[0007] Furthermore, the condensing chamber circulation device includes a condensing chamber. The condenser top cover, intermediate condenser, and condenser bottom cover are all provided with condensing chambers. The bottom of the condenser bottom cover is provided with a condensing water inlet pipe that communicates with the condensing chamber inside it. The top of the condenser top cover is provided with a condensing water outlet pipe that communicates with the condensing chamber inside it. Adjacent condensing chambers are connected by a condensing chamber circulation pipe.

[0008] Furthermore, the double-layer sealing device includes a primary sealing ring and a secondary sealing ring. A sealing groove is provided on the outer side of the retaining ring, and a sealing boss is provided on the inner side of the retaining ring. A primary sealing ring is provided between the sealing bosses of the two cooperating retaining rings, and a secondary sealing ring is provided between the sealing grooves of the two cooperating retaining rings. The primary sealing ring and the secondary sealing ring realize the sealing connection of the two cooperating retaining rings.

[0009] Furthermore, the materials on two adjacent intermediate condensers are staggered through pipes.

[0010] Furthermore, the circulation pipes of two adjacent condenser chambers and the water outlet pipes of two adjacent condenser coils are staggered.

[0011] Furthermore, temperature sensors are installed in both the material inlet and the material outlet.

[0012] Furthermore, the condenser top cover, intermediate condenser, and condenser bottom cover are all provided with multiple connecting buckles on their exteriors, and the condenser top cover, intermediate condenser, and condenser bottom cover are fixedly connected by reinforcing connecting ribs that pass through the connecting buckles.

[0013] Furthermore, a lifting ring is provided at the top of the condenser top cover, and a support foot is provided at the bottom of the condenser bottom cover.

[0014] Furthermore, the surfaces of the condenser top cover, intermediate condenser, and condenser bottom cover are provided with an enamel layer.

[0015] In summary, the present invention has the following beneficial effects:

[0016] 1. The material flows from top to bottom. The condensing chamber circulation device and the condensing coil circulation device are set separately from the material chamber, so they do not create resistance to the flow of the material. The medium is evenly distributed and there is no flow deviation.

[0017] 2. By setting up cooling chambers and curved cooling coils, the contact area with materials and the flow area of ​​the medium in the coils are increased, thereby increasing heat transfer efficiency and achieving rapid cooling.

[0018] 3. A double-layer seal with a primary and secondary sealing ring is implemented. A sealing boss on the retaining ring clamps the primary sealing ring, ensuring that the gasket does not shrink and deform into the container during negative pressure, preventing leaks. A sealing groove on the retaining ring reduces the height of the material cavity while maintaining the thickness of the secondary sealing ring, enabling timely heat transfer. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] Figure 1 This is a front cross-sectional view of an enamel-coated disc heat exchanger according to the present invention.

[0021] Figure 2 This is a front sectional view of the condenser top cover of the present invention;

[0022] Figure 3 This is a front sectional view of the intermediate condenser of the present invention;

[0023] Figure 4 This is a front sectional view of the condenser bottom cover of the present invention;

[0024] Figure 5 This is a top cross-sectional view of the condenser top cover of the present invention;

[0025] Figure 6 This is a top cross-sectional view of the intermediate condenser of the present invention;

[0026] Figure 7 This is a top cross-sectional view of the condenser bottom cover of the present invention.

[0027] In the diagram: 1. Condenser top cover, 2. Intermediate condenser, 3. Condenser bottom cover, 4. Condensation chamber, 5. Material inlet, 6. Material outlet, 7. Material retaining ring, 8. Primary sealing ring, 9. Secondary sealing ring, 10. Material passage pipe, 11. Lower condenser coil, 12. Condensation water outlet pipe, 13. Condensation chamber circulation pipe, 14. Lower condenser coil, 15. Condensation coil water inlet pipe, 16. Middle condenser coil, 17. Upper condenser coil, 18. Condensation coil water outlet pipe, 19. Condensation coil circulation pipe, 20. Temperature sensor, 21. Connecting buckle, 22. Reinforcing connecting rib, 23. Support leg, 24. Lifting ring, 25. Material chamber, 26. Sealing groove, 27. Sealing boss. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following is in conjunction with the appendix Figure 1-7 The present invention will be further described as follows:

[0030] A porcelain-enamel disc coil heat exchanger includes a condenser top cover 1, a condenser bottom cover 3, and multiple intermediate condensers 2 disposed between the condenser top cover 1 and the condenser bottom cover 3. The surfaces of the condenser top cover 1, the intermediate condensers 2, and the condenser bottom cover 3 are covered with an enamel layer. A lifting ring 24 is provided on the top of the condenser top cover 1, and a support leg 23 is provided on the bottom of the condenser bottom cover 3. Multiple connecting buckles 21 are provided on the exterior of the condenser top cover 1, the intermediate condensers 2, and the condenser bottom cover 3. The condenser top cover 1, the intermediate condensers 2, and the condenser bottom cover 3 are fixedly connected by reinforcing connecting ribs 22 that pass through the connecting buckles 21.

[0031] Material retaining rings 7 are provided at the bottom of the condenser top cover 1, the top of the condenser bottom cover 3, and the top and bottom of the intermediate condenser 2. A material chamber 25 is provided between two cooperating material retaining rings 7. The two cooperating material retaining rings 7 are sealed and connected by a double-layer sealing device. A material inlet 5 is provided in the middle of the condenser top cover 1. The material inlet 5 passes through the condenser top cover 1 and is connected to the uppermost material chamber 25. A material outlet 6 is provided in the middle of the condenser bottom cover 3. The material outlet 6 passes through the condenser bottom cover 3 and is connected to the lowermost material chamber 25. A material passage pipe 10 is provided through the intermediate condenser 2 to connect two adjacent material chambers 25. The material passage pipes 10 on the two adjacent intermediate condensers 2 are staggered. A condensing chamber circulation device and a condensing coil circulation device are provided between the condenser top cover 1, the multiple intermediate condensers 2, and the condenser bottom cover 3. Temperature sensors 20 are provided in both the material inlet 5 and the material outlet 6.

[0032] In this embodiment, the material enters the uppermost material chamber 25 from the material inlet 5, then passes through the material through pipe 10 to enter the lower material chamber 25, and finally enters the lowermost material chamber 25 and is discharged from the material outlet 6. The material flows from top to bottom. The condensing chamber circulation device and the condensing coil circulation device are set separately from the material chamber, so they do not create resistance to the flow of the material. The medium is evenly distributed and there is no flow deviation.

[0033] The condenser chamber circulation device and the condenser coil circulation device provide dual cooling for the material, resulting in excellent cooling performance. Preferably, the material on two adjacent intermediate condensers 2 is staggered via pipes 10, which extends the material flow path and the contact area with the condenser chamber circulation device and the condenser coil circulation device, increasing heat transfer efficiency and achieving rapid cooling. The double-layer sealing device ensures that the gasket will not shrink and deform into the container during negative pressure processes, preventing leaks.

[0034] The condenser coil circulation device includes a spiral lower condenser coil 14 located at the top of the condenser bottom cover 3, a spiral upper condenser coil 17 located at the bottom of the condenser top cover 1, and a serpentine middle condenser coil 16 located at the top and bottom of the intermediate condenser 2. The lower condenser coil 14 is connected to the lowest middle condenser coil 16, two adjacent middle condenser coils 16, the highest middle condenser coil 16, and the upper condenser coil 17 through a condenser coil circulation pipe 19. A condenser coil inlet pipe 15 connected to the lower condenser coil 14 is provided at the bottom of the condenser bottom cover 3, and the outlet pipes 18 of two adjacent condenser coils are staggered.

[0035] In this embodiment, the cooling medium enters the lower condenser coil 14 from the condenser coil inlet pipe 15, then sequentially passes through multiple condenser coil outlet pipes 18 and the middle condenser coil 16 before entering the upper condenser coil 17 and exiting from the condenser coil outlet pipe 18. The spiral-shaped lower condenser coil 14 and the spiral-shaped upper condenser coil 17 increase the contact area between the cooling medium and the material, as well as the flow area of ​​the medium within the coil, without affecting the material outlet 6 and material inlet 5 penetrating the middle of the condenser bottom cover 3 and the condenser top cover 1. The serpentine middle condenser coil 16 increases the contact area with the material and the flow area of ​​the cooling medium within the coil, while reducing resistance to the material.

[0036] The condensing chamber circulation device includes a condensing chamber 4. The condensing chamber 4 is provided inside the condenser top cover 1, the intermediate condenser 2 and the condenser bottom cover 3. The bottom of the condenser bottom cover 3 is provided with a condensing water inlet pipe 11 that communicates with the condensing chamber 4 inside it. The top of the condenser top cover 1 is provided with a condensing water outlet pipe 12 that communicates with the condensing chamber 4 inside it. Two adjacent condensing chambers 4 are connected by a condensing chamber circulation pipe 13, and the two adjacent condensing chamber circulation pipes 13 are staggered.

[0037] In this embodiment, the cooling medium enters the condensing chamber 4 of the condenser bottom cover 3 from the condenser inlet pipe 11, then passes sequentially through multiple condensing chamber circulation pipes 13 and the condensing chamber 4 of the intermediate condenser 2, enters the condensing chamber 4 of the condenser top cover 1, and finally exits from the condenser outlet pipe 12. The cooling medium in the condensing chamber 4, along with the lower condensing coil 14, the middle condensing coil 16, and the upper condensing coil 17, can fully absorb the heat from the material, increasing the contact area with the material and the flow area of ​​the medium within the coils, thereby increasing heat transfer efficiency and achieving rapid cooling.

[0038] The double-layer sealing device includes a primary sealing ring 8 and a secondary sealing ring 9. A sealing groove 26 is provided on the outer side of the retaining ring 7, and a sealing boss 27 is provided inside the retaining ring 7. A primary sealing ring 8 is provided between the sealing bosses 27 of the two cooperating retaining rings 7, and a secondary sealing ring 9 is provided between the sealing grooves 26 of the two cooperating retaining rings 7. The primary sealing ring 8 and the secondary sealing ring 9 realize the sealing connection of the two cooperating retaining rings 7.

[0039] In this embodiment, preferably, the primary sealing ring 8 is an annular sealing gasket made of polytetrafluoroethylene (PTFE), and the secondary sealing ring 9 is a stainless steel ring with an outer corrugated PTFE gasket. The two sealing protrusions 27 firmly clamp the primary sealing ring 8 in the middle, ensuring that the primary sealing ring 8 will not shrink and deform into the container during negative pressure, thus preventing leakage. The sealing groove 26, while maintaining the thickness of the secondary sealing ring 9, reduces the height of the material cavity 25, enabling timely heat transfer.

[0040] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent 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 this patent.

[0041] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

Claims

1. A porcelain-enamel disc-coil heat exchanger, characterized in that, The condenser includes a top cover (1), a bottom cover (3), and multiple intermediate condensers (2) located between the top cover (1) and the bottom cover (3). The bottom of the top cover (1), the top of the bottom cover (3), and the top and bottom of the intermediate condensers (2) are all provided with baffle rings (7). A material chamber (25) is provided between two cooperating baffle rings (7). The two cooperating baffle rings (7) are sealed together by a double-layer sealing device. A material inlet (5) is provided in the middle of the top cover (1). 5) The material outlet (6) is provided in the middle of the condenser bottom cover (3) and is connected to the uppermost material chamber (25). The material outlet (6) is connected to the condenser bottom cover (3) and is connected to the lowermost material chamber (25). The intermediate condenser (2) is provided with a material passage pipe (10) that connects two adjacent material chambers (25). The condenser top cover (1), multiple intermediate condensers (2) and condenser bottom cover (3) are provided with a condenser chamber circulation device and a condenser coil circulation device that are interconnected.

2. The enamel-lined disc coil heat exchanger as described in claim 1, characterized in that, The condenser coil circulation device includes a spiral lower condenser coil (14) set at the top of the condenser bottom cover (3), a spiral upper condenser coil (17) set at the bottom of the condenser top cover (1), and a serpentine middle condenser coil (16) set at the top and bottom of the intermediate condenser (2). The lower condenser coil (14) is connected to the lowest middle condenser coil (16), two adjacent middle condenser coils (16), the highest middle condenser coil (16), and the upper condenser coil (17) through a condenser coil circulation pipe (19). The bottom of the condenser bottom cover (3) is provided with a condenser coil inlet pipe (15) connected to the lower condenser coil (14), and the top of the condenser top cover (1) is provided with a condenser coil outlet pipe (18) connected to the upper condenser coil (17).

3. The enamel-lined disc coil heat exchanger as described in claim 2, characterized in that, The condensing chamber circulation device includes a condensing chamber (4). The condenser top cover (1), intermediate condenser (2) and condenser bottom cover (3) are all provided with condensing chambers (4). The bottom of the condenser bottom cover (3) is provided with a condensing water inlet pipe (11) that communicates with the condensing chamber (4) inside it. The top of the condenser top cover (1) is provided with a condensing water outlet pipe (12) that communicates with the condensing chamber (4) inside it. Two adjacent condensing chambers (4) are connected by a condensing chamber circulation pipe (13).

4. The enamel-lined disc coil heat exchanger as described in claim 3, characterized in that, The double-layer sealing device includes a primary sealing ring (8) and a secondary sealing ring (9). A sealing groove (26) is provided on the outer side of the retaining ring (7), and a sealing boss (27) is provided inside the retaining ring (7). A primary sealing ring (8) is provided between the sealing bosses (27) of the two retaining rings (7) that cooperate with each other, and a secondary sealing ring (9) is provided between the sealing grooves (26) of the two retaining rings (7) that cooperate with each other. The primary sealing ring (8) and the secondary sealing ring (9) realize the sealing connection of the two retaining rings (7) that cooperate with each other.

5. The enamel-lined disc coil heat exchanger as described in claim 4, characterized in that, The materials on two adjacent intermediate condensers (2) are staggered through pipes (10).

6. The enamel-lined disc coil heat exchanger as described in claim 5, characterized in that, The two adjacent condenser circulation pipes (13) and the two adjacent condenser coil outlet pipes (18) are all staggered.

7. The enamel-lined disc coil heat exchanger as described in claim 1, characterized in that, Temperature sensors (20) are installed in both the material inlet (5) and the material outlet (6).

8. The enamel-lined disc coil heat exchanger as described in claim 1, characterized in that, The condenser top cover (1), intermediate condenser (2) and condenser bottom cover (3) are all provided with multiple connecting buckles (21) on their exteriors. The condenser top cover (1), intermediate condenser (2) and condenser bottom cover (3) are fixedly connected by reinforcing connecting ribs (22) that pass through the connecting buckles (21).

9. The enamel-lined disc coil heat exchanger as described in claim 1, characterized in that, The top of the condenser top cover (1) is provided with a lifting ring (24), and the bottom of the condenser bottom cover (3) is provided with a support foot (23).

10. The enamel-lined disc coil heat exchanger as described in claim 1, characterized in that, The surfaces of the condenser top cover (1), intermediate condenser (2) and condenser bottom cover (3) are provided with an enamel layer.

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