Condenser with long service life

Abstract

The utility model relates to the technical field of chemical condensers, and discloses a condenser with long service life, which comprises an outer shell mechanism and a plurality of inner pipe mechanisms, and the outer shell mechanism comprises a pipe shell, a first hemispherical shell, a second hemispherical shell and two vertical partition plates. According to the condenser, the spiral condensation pipe design is adopted, the heat exchange area is increased, fluid turbulence is promoted, heat exchange efficiency is effectively improved, local hot spots and dead zones are reduced, meanwhile, dirt and scaling are reduced, in addition, a plurality of oval holes are formed in a plurality of sleeves, fluid distribution is further optimized, vortexes and dead angles are reduced, and the heat exchange efficiency is improved. Meanwhile, the multiple spiral pipes and the multiple sleeves are each of a four-layer structure design and comprise inner and outer corrosion-resistant layers made of polytetrafluoroethylene, a stainless steel layer and an alloy layer, good anti-corrosion protection is provided, the structural strength and the temperature and pressure resistance are improved, it is ensured that the condenser keeps stable and efficient operation, and the service life of the condenser is prolonged. The reliability and the service life of the condenser are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of condensers for chemical applications, and in particular to a condenser with a long service life. Background Technology

[0002] In the petrochemical industry, condensers play a crucial role, especially in distillation processes. Distillation is a physical process that separates liquid mixtures based on the differences in boiling points of their components. In this process, the mixture is heated to boiling, and the resulting vapors are then introduced into a condenser. The condenser is designed with a cooling system that transfers the heat of the vapor to a cooling medium, such as chilled water or air, through heat exchange, thereby cooling the vapor and condensing it into a liquid state. This transformation not only helps improve the purity of the feedstock but also allows hydrocarbons and other chemical vapors to be collected in liquid form for further processing. The design of condensers must take into account the corrosion resistance, high-temperature resistance, and high-efficiency heat exchange capacity of the materials to ensure reliability and efficiency when handling various chemical substances.

[0003] A search revealed an existing patent (publication number: CN212512554U) that discloses a "novel chemical condenser, comprising a pipe connection end, a condenser outer layer, pipe flanges, a pressurized water inlet device, a water outlet, and condenser tubes. The pipe connection end is a cylindrical structure. The condenser outer layer is fixedly connected to the front end of the pipe connection end. Three pipe flanges are respectively fixedly connected to the front and rear ends of the condenser outer layer. The pressurized water inlet device is installed at the top front end of the condenser outer layer. The water outlet is located on the lower left side of the pipe connection end. Multiple condenser tubes are installed equidistantly and at equal angles inside the condenser outer layer. This utility model has a simple structure and reasonable design. Compared with traditional condensers, it adds a pressurized water inlet device that can automatically pressurize and flush, and improves the material of the condenser tubes, making them more corrosion-resistant and extending the service life of the condenser."

[0004] In the process of developing this application, the inventors discovered the following problems with the prior art: Although the aforementioned comparative patent provides a novel chemical condenser by incorporating components such as pipe connection ends, an outer layer of the condenser, pipe flanges, a pressurized water inlet device, and a water outlet, it uses common cylindrical straight condenser tubes, resulting in a limited heat exchange area and making it difficult to meet the demand for improved heat exchange efficiency. Therefore, those skilled in the art have developed a condenser with a long service life to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a condenser with a long service life. This condenser employs a spiral-shaped condenser tube design, which effectively improves heat exchange efficiency by increasing the heat exchange area and promoting fluid turbulence, reducing local hot spots and dead zones, and minimizing the formation of fouling and scale. In addition, multiple elliptical holes are provided on multiple sleeves to further optimize fluid distribution and reduce eddies and dead zones. Furthermore, the multiple spiral tubes and multiple sleeves adopt a four-layer structure design, including inner and outer corrosion-resistant polytetrafluoroethylene layers, as well as stainless steel and alloy layers. This not only provides excellent corrosion protection but also enhances structural strength and temperature and pressure resistance, ensuring stable and efficient operation of the condenser and effectively improving its reliability and service life.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a condenser with a long service life, comprising an outer shell mechanism and multiple inner tube mechanisms. The outer shell mechanism includes a tube shell, a first hemispherical shell, a second hemispherical shell, and two vertical partitions. Each of the multiple inner tube mechanisms includes a spiral tube and a sleeve. The two ends of the multiple spiral tubes are respectively slidably disposed outside the two vertical partitions.

[0007] Furthermore, the two sides of the tube shell are respectively snapped onto the inner edges of the two vertical partitions, the inner edge of the first hemispherical shell is fixedly set to one of the outer edges of the two vertical partitions near one side, the inner edge of the second hemispherical shell is fixedly set to one of the outer edges of the two vertical partitions near the other side, and a transverse partition is fixedly set between the middle of the inner wall of the first hemispherical shell and the adjacent vertical partition.

[0008] Furthermore, a first inlet is fixedly provided through the middle of the upper end of the first hemispherical shell, and a first outlet is fixedly provided through the middle of the lower end of the first hemispherical shell.

[0009] Furthermore, a second outlet is fixedly provided through the middle of the upper end of the tube shell near the first hemispherical shell, and a second inlet is fixedly provided through the middle of the lower end of the tube shell near the second hemispherical shell.

[0010] Furthermore, each of the multiple spiral tubes has a cover plate slidably disposed near both ends, and the two sides of the multiple sleeves are respectively snapped onto the inner edges of the two cover plates of each spiral tube.

[0011] Furthermore, the walls of each of the multiple sleeves are provided with multiple elliptical holes in a mesh-like pattern.

[0012] Furthermore, each of the plurality of spiral tubes and the plurality of sleeves comprises a four-layer structure, wherein the outermost and innermost layers of the four-layer structure are corrosion-resistant layers, and the two middle layers of the four-layer structure are, from the outside to the inside, a stainless steel layer and an alloy layer, respectively.

[0013] Furthermore, the sleeves of the plurality of inner tube mechanisms are tangential to each other and slidably disposed inside the tube shell along the tube shell axis, and the outer wall of the sleeve closest to the inner wall of the tube shell is tangential to the inner wall of the tube shell.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model proposes a condenser with a long service life. The condenser effectively increases the heat exchange area through multiple spiral tubes and promotes the formation of turbulence in the fluid inside the condenser tubes. This helps to reduce the thickness of the thermal boundary layer, thereby improving the heat exchange efficiency. At the same time, this design helps to distribute the fluid more evenly, reduce local hot spots and dead zones, and further improve the heat exchange performance of the condenser. In addition, since the spiral shape promotes the turbulent movement of the fluid, this helps to reduce the deposition of particles on the tube wall, thereby reducing the formation of dirt and scale. This is very beneficial for maintaining the long-term operating efficiency of the condenser and extending the cleaning cycle.

[0016] 2. This utility model proposes a condenser with a long service life. The condenser disperses the fluid flow of cold material entering the sleeve through multiple elliptical holes on multiple sleeves, reducing eddies and dead zones, thereby improving heat exchange efficiency and ensuring uniform fluid flow throughout the condenser, thus improving the uniformity and efficiency of heat exchange. In addition, in the four-layer structure of multiple spiral tubes and sleeves, the inner and outer corrosion-resistant layers are made of polytetrafluoroethylene, providing good corrosion protection for the spiral tubes and sleeves, enabling them to resist the erosion of corrosive substances in the fluid. The combination of stainless steel layer and alloy layer not only enhances the structural strength and rigidity, but also provides additional temperature and pressure resistance, ensuring that the condenser can operate stably under various working conditions, thereby significantly improving the reliability and service life of the condenser. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the isometric side section of this utility model;

[0018] Figure 2 This is an isometric schematic diagram of the present invention;

[0019] Figure 3 This is an isometric orthogonal sectional view of the outer shell mechanism of this utility model;

[0020] Figure 4 This is an isometric orthogonal sectional view of the inner tube mechanism of this utility model;

[0021] Figure 5 This is an isometric view of the inner tube mechanism of this utility model without the sleeve installed.

[0022] Figure 6This is a cross-sectional schematic diagram of the spiral tube and sleeve of this utility model.

[0023] Legend:

[0024] 1. Outer shell mechanism; 2. Inner tube mechanism; 101. Tube shell; 102. First hemispherical shell; 103. Second hemispherical shell; 104. Vertical partition; 105. Horizontal partition; 106. First inlet; 107. First outlet; 108. Second inlet; 109. Second outlet; 201. Cover plate; 202. Spiral tube; 203. Sleeve; 204. Elliptical hole; 205. Corrosion-resistant layer; 206. Alloy layer; 207. Stainless steel layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 and Figure 4 The present invention provides an embodiment of a condenser with a long service life, comprising an outer shell mechanism 1 and multiple inner tube mechanisms 2. The outer shell mechanism 1 includes a tube shell 101, a first hemispherical shell 102, a second hemispherical shell 103 and two vertical partitions 104. Each of the multiple inner tube mechanisms 2 includes a spiral tube 202 and a sleeve 203. The two ends of the multiple spiral tubes 202 are respectively slidably disposed through the two vertical partitions 104 on the outside.

[0027] Specifically, the two vertical partitions 104 in the outer shell mechanism 1 provide good installation positions for the multiple spiral tubes 202 in the multiple inner tube mechanisms 2, and the tube shell 101, the first hemispherical shell 102 and the second hemispherical shell 103 in the outer shell mechanism 1 provide good protection for the multiple inner tube mechanisms 2.

[0028] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5The two sides of the tube shell 101 are respectively snapped to the inner edges of the two vertical partitions 104. The inner edge of the first hemispherical shell 102 is fixedly set to one of the outer edges of the two vertical partitions 104, which is closer to one side. The inner edge of the second hemispherical shell 103 is fixedly set to one of the outer edges of the two vertical partitions 104, which is closer to the other side. A horizontal partition 105 is fixedly set between the middle of the inner wall of the first hemispherical shell 102 and the adjacent vertical partition 104. A first inlet 106 is fixedly set through the middle of the upper end of the first hemispherical shell 102. A first outlet 107 is fixedly set through the middle of the lower end of the first hemispherical shell 102. A second outlet 109 is fixedly set through the middle of the upper end of the tube shell 101, which is closer to the first hemispherical shell 102. A second inlet 108 is fixedly set through the middle of the lower end of the tube shell 101, which is closer to the second hemispherical shell 103.

[0029] Specifically, in use, according to actual needs, the user introduces cold material into the tube through the second inlet 108 and fills the inside of the tube shell 101, then leads it out through the second outlet 109. The user introduces hot material into the upper half of the first hemispherical shell 102 through the first inlet 106, which is separated by the horizontal partition 105, and then through the adjacent vertical partition 104 into the multiple spiral tubes 202 in the multiple inner tube mechanisms 2 inside the upper half of the tube shell 101. Then it enters the second hemispherical shell 103 and returns to the lower half of the first hemispherical shell 102 separated by the horizontal partition 105 through the multiple inner tube mechanisms 2 inside the lower half of the tube shell 101, and is finally led out through the first outlet 107.

[0030] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 Multiple spiral tubes 202 are slidably fitted with cover plates 201 near both ends of the tube body. Multiple sleeves 203 are respectively snapped onto the inner edges of the two cover plates 201 of each spiral tube 202. The walls of the multiple sleeves 203 are provided with multiple elliptical holes 204 in a mesh pattern. The multiple spiral tubes 202 and multiple sleeves 203 each include a four-layer structure. The outermost and innermost layers of the four-layer structure are corrosion-resistant layers 205. The two middle layers of the four-layer structure are, from the outside to the inside, a stainless steel layer 207 and an alloy layer 206. The sleeves 203 of the multiple inner tube mechanisms 2 are tangent to each other and slidably fitted into the inside of the tube shell 101 along the axial direction. The outer wall of the sleeve 203 closest to the inner wall of the tube shell 101 is tangent to the inner wall of the tube shell 101.

[0031] Specifically, the cold material fills the space between the inner wall of the shell 101 and the outer wall of the multiple spiral tubes 202. It fills the interior of the multiple sleeves 203 through the multiple elliptical holes 204 in the tube body of the multiple sleeves 203, and makes full contact with the outer wall of the multiple spiral tubes 202. Compared with straight cylindrical condenser tubes, the spiral shape effectively increases the heat exchange area and promotes the formation of turbulence in the fluid inside the condenser tube. This helps to reduce the thickness of the thermal boundary layer and improve the heat exchange efficiency. At the same time, it helps to distribute the fluid more evenly and reduce local hot spots and dead zones. In addition, the spiral shape helps to reduce the formation of fouling and scale because the turbulent movement of the fluid can reduce the deposition of particles on the tube wall. The use of the sleeves 203 not only facilitates the even distribution of the multiple spiral tubes 202 in the shell 101, but also the multiple elliptical holes 204 on its surface can effectively disperse the fluid flow of the cold material entering the sleeves 203, fully reducing eddies and dead zones, thereby improving the heat exchange efficiency.

[0032] The outermost and innermost corrosion-resistant layers 205 are made of polytetrafluoroethylene, which protects the inner and outer walls of the multiple spiral tubes 202 and multiple sleeves 203 from corrosive substances in the fluid in direct contact. The stainless steel layer 207 provides additional structural strength and rigidity, while also having a certain degree of corrosion resistance, serving as a good backup for the corrosion-resistant layer 205. The alloy layer 206 provides good temperature and pressure resistance.

[0033] Working principle: In use, according to actual needs, the user introduces cold material into the tube through the second inlet 108 and fills the inside of the tube shell 101, and then leads it out through the second outlet 109. The user introduces hot material into the upper half of the first hemispherical shell 102 through the first inlet 106, which is separated by the horizontal partition 105, and then enters the multiple spiral tubes 202 in the multiple inner tube mechanisms 2 in the upper half of the tube shell 101 through the adjacent vertical partition 104. Then it enters the second hemispherical shell 103 and returns to the lower half of the first hemispherical shell 102 separated by the horizontal partition 105 through the multiple inner tube mechanisms 2 in the lower half of the tube shell 101, and is finally led out through the first outlet 107.

[0034] Secondly, the cold material fills the space between the inner wall of the shell 101 and the outer wall of the multiple spiral tubes 202. It fills the interior of the multiple sleeves 203 through the multiple elliptical holes 204 in the tube body of the multiple sleeves 203, and makes full contact with the outer wall of the multiple spiral tubes 202. Compared with straight cylindrical condenser tubes, the spiral shape effectively increases the heat exchange area and promotes the formation of turbulence in the fluid inside the condenser tube. This helps to reduce the thickness of the thermal boundary layer and improve the heat exchange efficiency. At the same time, it helps to distribute the fluid more evenly and reduce local hot spots and dead zones. In addition, the spiral shape helps to reduce the formation of dirt and scale because the turbulent movement of the fluid can reduce the deposition of particles on the tube wall. The use of the sleeves 203 not only makes it easy to distribute the multiple spiral tubes 202 evenly in the shell 101, but also the multiple elliptical holes 204 on its surface can effectively disperse the fluid flow of the cold material entering the sleeves 203, fully reducing eddies and dead zones, thereby improving the heat exchange efficiency.

[0035] In addition, the outermost and innermost corrosion-resistant layers 205 are made of polytetrafluoroethylene, which protects the inner and outer walls of the multiple spiral tubes 202 and multiple sleeves 203 from the corrosion of the fluids in direct contact. The stainless steel layer 207 provides additional structural strength and rigidity, while also having a certain degree of corrosion resistance, serving as a good backup for the corrosion-resistant layer 205. The alloy layer 206 provides good temperature and pressure resistance.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A condenser with a long service life, comprising an outer shell mechanism (1) and a plurality of inner tube mechanisms (2), characterized in that: The outer shell mechanism (1) includes a tube shell (101), a first hemispherical shell (102), a second hemispherical shell (103), and two vertical partitions (104). The multiple inner tube mechanisms (2) each include a spiral tube (202) and a sleeve (203). The two ends of the multiple spiral tubes (202) are respectively slidably disposed outside the two vertical partitions (104).

2. A condenser with a long service life according to claim 1, characterized in that: The two sides of the shell (101) are respectively snapped onto the inner edges of the two vertical partitions (104). The inner edge of the first hemispherical shell (102) is fixedly disposed on one of the outer edges of the two vertical partitions (104) near one side. The inner edge of the second hemispherical shell (103) is fixedly disposed on one of the outer edges of the two vertical partitions (104) near the other side. A transverse partition (105) is fixedly disposed between the middle of the inner wall of the first hemispherical shell (102) and the adjacent vertical partition (104).

3. A condenser with a long service life according to claim 1, characterized in that: A first inlet (106) is fixedly provided through the middle of the upper end of the first hemispherical shell (102), and a first outlet (107) is fixedly provided through the middle of the lower end of the first hemispherical shell (102).

4. A condenser with a long service life according to claim 1, characterized in that: A second outlet (109) is fixedly provided through the middle of the upper end of the tube shell (101) near the first hemispherical shell (102), and a second inlet (108) is fixedly provided through the middle of the lower end of the tube shell (101) near the second hemispherical shell (103).

5. A condenser with a long service life according to claim 1, characterized in that: Each of the spiral tubes (202) has a cover plate (201) slidably disposed near both ends of the tube body, and the two sides of the sleeves (203) are respectively snapped onto the inner edges of the two cover plates (201) of each spiral tube (202).

6. A condenser with a long service life according to claim 5, characterized in that: The walls of the multiple sleeves (203) are provided with multiple elliptical holes (204) in a mesh pattern.

7. A condenser with a long service life according to claim 5, characterized in that: The plurality of spiral tubes (202) and the plurality of sleeves (203) each include a four-layer structure, wherein the outermost and innermost layers of the four-layer structure are corrosion-resistant layers (205), and the two middle layers of the four-layer structure are, from the outside to the inside, a stainless steel layer (207) and an alloy layer (206).

8. A condenser with a long service life according to claim 1, characterized in that: The sleeves (203) of the plurality of inner tube mechanisms (2) are tangential to each other and are slidably disposed inside the tube shell (101) along the axial direction of the tube shell (101). The outer wall of the sleeve (203) closest to the inner wall of the tube shell (101) among the plurality of sleeves (203) is tangential to the inner wall of the tube shell (101).

Images