Chemical condenser

Abstract

The invention belongs to the technical field of condensers, and discloses a chemical condenser which comprises a first cylindrical shell, and the surface of the cylindrical shell is fixedly connected with a cooling medium circulation mechanism; the cooling medium circulation mechanism comprises a cooling medium cooling acceleration device, and the end face, perpendicular to the axis of the first cylindrical shell, of the cooling medium cooling acceleration device is fixedly connected with a first thermal insulation conveying pipe device. The end, away from the cooling medium cooling acceleration device, of the first thermal insulation conveying pipe device is fixedly connected with a first leakage-proof connecting device, and the end, away from the first thermal insulation conveying pipe device, of the first leakage-proof connecting device is fixedly connected with a cylindrical shell pass. The flowing path of the cooling medium is prolonged through the cooling medium circulating mechanism, so that the contact time between the cooling medium and the cooled object is prolonged, the convective heat transfer coefficient is increased, heat is more sufficiently transferred into the cooling medium from the cooled object, and more heat is taken away.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of condensers, in particular to a chemical condenser. BACKGROUND

[0002] In chemical production, it is often necessary to separate and purify different components in a mixture, such as fractionating crude oil in petroleum chemical industry to obtain hydrocarbon products of different boiling point ranges, purifying reaction products in the pharmaceutical industry, etc. Rectification process is one of the important means to achieve this goal, and the condenser, as a key component of the rectification column, is responsible for cooling and condensing the rising vapor into liquid.

[0003] The patent application with application number CN202311765875.6 discloses a degassing secondary condenser applied in the chemical field, which comprises a shell, a liquid outlet, an air inlet, an air outlet, a cooling pipeline and a gas guide plate are installed on the shell, and a pipe wall self-cleaning device for cleaning the outer wall of the cooling pipeline is also installed inside the shell.

[0004] The current degassing secondary condenser applied in the chemical field can automatically clean the condenser through the flow self-rotation cleaning mechanism, the circulating flow pollution discharge device and other mechanisms, effectively improving the work efficiency and avoiding the effect of cleaning the dirt deposited on the inner wall of the shell. However, the efficiency of the device can be improved in other aspects. In view of this, the test device is improved. SUMMARY

[0005] The present application aims to provide a chemical condenser to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a chemical condenser, comprising a first cylindrical shell, a cooling medium flow mechanism is fixedly connected to the surface of the first cylindrical shell; The cooling medium flow mechanism comprises a cooling medium cooling and accelerating device, a first temperature insulation transmission pipe device is fixedly connected to the end surface of the cooling medium cooling and accelerating device perpendicular to the axis of the first cylindrical shell, a first leak-proof connecting device is fixedly connected to one end of the first temperature insulation transmission pipe device away from the cooling medium cooling and accelerating device, a cylindrical shell section is fixedly connected to one end of the first leak-proof connecting device away from the first temperature insulation transmission pipe device, a spiral cavity is formed in the inside of the cylindrical shell section, a second leak-proof connecting device is fixedly connected to one end of the cylindrical shell section away from the first leak-proof connecting device, and a second temperature insulation transmission pipe device is fixedly connected to one end of the second leak-proof connecting device away from the cylindrical shell section.

[0007] Preferably, the cooling medium transmission space inside the cooling medium cooling acceleration device is larger than the cooling medium transmission space of the first temperature insulation transmission pipe device, the cooling medium transmission space of the first temperature insulation transmission pipe device is consistent with the cooling medium transmission space of the first leakage prevention connecting device, the cooling medium transmission space of the first leakage prevention connecting device is larger than the cooling medium transmission space of the spiral cavity, the cooling medium transmission space of the spiral cavity is larger than the cooling medium transmission space of the second leakage prevention connecting device, and the cooling medium transmission space of the second leakage prevention connecting device is consistent with the cooling medium transmission space of the second temperature insulation transmission pipe device.

[0008] Preferably, the cooling medium cooling acceleration device is located below the cylindrical shell, the axis of the first temperature insulation transmission pipe device is not in the same plane as the axis of the cylindrical shell, the axis of the first temperature insulation transmission pipe device is in the same plane as the axis of the second temperature insulation transmission pipe device, the axis of the cylindrical shell coincides with the axis of the first cylindrical shell, the cylindrical shell is located inside the first cylindrical shell, the first leakage prevention connecting device and the second leakage prevention connecting device are fixedly connected with the first cylindrical shell, the first leakage prevention connecting device and the second leakage prevention connecting device are respectively located at two ends of the first cylindrical shell, and the second temperature insulation transmission pipe device is fixedly connected with the end of the cooling medium cooling acceleration device away from the first temperature insulation transmission pipe device.

[0009] Preferably, the cooling medium cooling acceleration device comprises a rectangular shell, a cooling device is fixedly connected inside the rectangular shell, a serpentine pipe is fixedly connected inside the cooling device, a first connecting rod is arranged at one end of the serpentine pipe close to the first temperature insulation transmission pipe device, a first rotating device is fixedly connected to the bottom of the first connecting rod, and a wing-shaped fan blade is fixedly connected to the surface of the output shaft of the first rotating device.

[0010] Preferably, the first connecting rod is fixedly connected to the inner wall of the rectangular shell at the top, the diameter of the inner wall of the serpentine pipe is larger than the diameter of the inner wall of the second temperature insulation transmission pipe device, and a condensing pipe device is fixedly connected inside the first cylindrical shell.

[0011] Preferably, the condensing pipe device comprises a second cylindrical shell, a triangularly arranged pipe bundle is fixedly connected inside the second cylindrical shell, an internally threaded pipe bundle is arranged inside the triangularly arranged pipe bundle, an air inlet is fixedly connected to one end of the second cylindrical shell close to the second leakage prevention connecting device, an air outlet is fixedly connected to one end of the second cylindrical shell close to the first leakage prevention connecting device, and a bifurcated pipe device is fixedly connected to the end of the air outlet away from the second cylindrical shell.

[0012] Preferably, the axis of the second cylindrical shell coincides with the axis of the cylindrical shell, the second cylindrical shell is located inside the cylindrical shell, the air inlet is shaped like a diverging shape, the air outlet is shaped like a converging shape, the size of the air inlet is inconsistent with the minimum inner diameter of the air outlet, and the inner wall diameter of the bifurcated pipe device is consistent with the minimum inner wall diameter of the air outlet.

[0013] Preferably, the bifurcated pipe device comprises a connecting pipe opening, an upper pipe opening is arranged at one end of the second cylindrical shell, a first filter screen is fixedly connected inside the upper pipe opening, a lower pipe opening is arranged at the bottom of the upper pipe opening, and a second filter screen is fixedly connected inside the lower pipe opening.

[0014] Compared with the prior art, the beneficial effects of the present application are: 1. The chemical condenser, by the cooling medium flow mechanism, the flow path of the cooling medium is lengthened, the contact time between the cooling medium and the cooled object is lengthened, which helps to improve the convective heat transfer coefficient, so that more heat is transferred from the cooled object to the cooling medium, thereby increasing the heat exchange efficiency, and by increasing the flow path, the turbulent effect of the cooling medium can be enhanced, the boundary layer is destroyed to increase the heat transfer coefficient, the heat transfer speed is increased, the time to reach the target temperature is reduced, and the efficiency is improved.

[0015] 2. The chemical condenser, by the cooling medium flow mechanism, the flow speed of the cooling medium is accelerated, the faster flow speed of the cooling medium can reduce the thickness of the boundary layer and reduce the thermal resistance, thereby improving the heat transfer efficiency, and the increased flow speed can make the cooling medium carry away more heat in unit time, so that the temperature difference between the cooled object and the cooling medium increases, because the heat transfer temperature difference increases, the heat transfer amount also increases, thereby improving the efficiency of the entire cooling system.

[0016] 3. The chemical condenser, by the cooling medium flow mechanism, the flow direction of the cooling medium is opposite to the flow direction of the condensed gas, the opposite flow design makes the inlet of the hot fluid adjacent to the outlet of the cooling medium, and the inlet of the cold fluid adjacent to the outlet of the hot fluid, forming a large temperature gradient, which can provide a stronger heat transfer driving force, thereby effectively improving the heat transfer efficiency.

[0017] 4. The chemical condenser, by the condensing pipe device, the contact area between the pipe wall of the tube bundle and the fluid is increased, by increasing the contact area between the pipe wall and the fluid, the heat transfer surface can be expanded, so that more heat can be transferred through the pipe wall, and a larger contact area means that more heat can be transferred from the hot fluid to the cooling medium in unit time, thereby increasing the heat transfer efficiency of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Structure diagram of the cooling medium flow passage of the present application; Figure 2 Structure diagram of the cooling medium flow passage of the present application; Figure 3 Structure diagram of the cooling medium flow passage of the present application; Figure 4 Structure diagram of the cooling medium flow passage of the present application; Figure 5 Structure diagram of the cooling medium flow passage of the present application; Figure 6 Structure diagram of the condensing pipeline device of the present application; Figure 7 Structure diagram of the condensing pipeline device of the present application; Figure 8 Structure diagram of the condensing pipeline device of the present application; Figure 6 Enlarged diagram of A in the present application; Figure 9 Structure diagram of the bifurcated pipeline device of the present application; Figure 10 Structure diagram of the bifurcated pipeline device of the present application;

[0019] Figure: 1, first cylindrical shell; 2, cooling medium flow passage; 201, cooling medium flow passage; 2011, rectangular shell; 2012, cooling device; 2013, serpentine pipeline; 2014, first connecting rod; 2015, first rotating device; 2016, airfoil fan blade; 202, first temperature insulation transmission pipeline device; 203, first leakage prevention connecting device; 204, cylindrical shell; 205, spiral cavity; 206, second leakage prevention connecting device; 207, second temperature insulation transmission pipeline device; 3, condensing pipeline device; 301, second cylindrical shell; 302, triangularly arranged pipeline bundle; 303, internally threaded pipeline bundle; 304, air inlet; 305, air outlet; 306, bifurcated pipeline device; 3061, connecting pipeline opening; 3062, upper pipeline opening; 3063, first filter screen; 3064, lower pipeline opening; 3065, second filter screen. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] Embodiment one, please refer to Figures 1-5The application provides a technical scheme: a chemical condenser, which comprises a first cylindrical shell 1, a cooling medium flow passage mechanism 2 is fixedly connected to the surface of the first cylindrical shell 1; the cooling medium flow passage mechanism 2 comprises a cooling medium temperature reduction accelerating device 201, the cooling medium temperature reduction accelerating device 201 comprises a rectangular shell 2011, a temperature reduction device 2012 is fixedly connected inside the rectangular shell 2011, a serpentine pipeline 2013 is fixedly connected inside the temperature reduction device 2012, the serpentine pipeline 2013 prolongs the pipeline path, so that the cooling medium stays in the pipeline for a longer time, thereby increasing the absorption amount of the temperature reduction device 2012 to the temperature of the cooling medium, the inner wall diameter of the serpentine pipeline 2013 is greater than that of a second temperature insulation transmission pipe device 207, the design that the inner wall diameter of the serpentine pipeline 2013 is greater than that of the second temperature insulation transmission pipe device 207 is used to slow down the moving speed of the cooling medium in the serpentine pipeline 2013, so that the cooling medium stays in the serpentine pipeline 2013 for a longer time, one end of the serpentine pipeline 2013 close to a first temperature insulation transmission pipe device 202 is provided with a first connecting rod 2014, the top of the first connecting rod 2014 is fixedly connected with the inner wall of the rectangular shell 2011, the bottom of the first connecting rod 2014 is fixedly connected with a first rotating device 2015, the output shaft surface of the first rotating device 2015 is fixedly connected with a wing-shaped fan blade 2016, the wing-shaped fan blade 2016 is used to increase the flow speed of the cooling medium, the cooling medium temperature reduction accelerating device 201 is located below a cylindrical shell section 204, the end surface of the cooling medium temperature reduction accelerating device 201 perpendicular to the axis of the first cylindrical shell 1 is fixedly connected with the first temperature insulation transmission pipe device 202, the first temperature insulation transmission pipe device 202 is used to reduce the temperature fluctuation of the cooling medium when flowing in the first temperature insulation transmission pipe device 202, the cooling medium transmission space in the cooling medium temperature reduction accelerating device 201 is greater than that of the first temperature insulation transmission pipe device 202, one end of the first temperature insulation transmission pipe device 202 away from the cooling medium temperature reduction accelerating device 201 is fixedly connected with a first leakage prevention connecting device 203, the cooling medium transmission space of the first temperature insulation transmission pipe device 202 is consistent with that of the first leakage prevention connecting device 203, one end of the first leakage prevention connecting device 203 away from the first temperature insulation transmission pipe device 202 is fixedly connected with the cylindrical shell section 204, the axis of the cylindrical shell section 204 coincides with that of the first cylindrical shell 1, the cylindrical shell section 204 is located inside the first cylindrical shell 1, the axis of the first temperature insulation transmission pipe device 202 is not in the same plane as that of the cylindrical shell section 204, a spiral cavity 205 is arranged in the inside of the cylindrical shell section 204, the spiral cavity 205 is used to increase the flow path of the cooling medium, so that the contact between the cooling medium and the gas to be condensed is more uniform, local overheating or overcooling is avoided, the uniformity of temperature distribution is improved, the cooling medium transmission space of the first leakage prevention connecting device 203 is greater than that of the spiral cavity 205,The second leakproof connecting device 206 is fixedly connected with the one end of the cylindrical shell 204 away from the first leakproof connecting device 203, and the first leakproof connecting device 203 and the second leakproof connecting device 206 are fixedly connected with the first cylindrical shell 1. The first leakproof connecting device 203 and the second leakproof connecting device 206 are respectively located at the two ends of the first cylindrical shell 1. The cooling medium transmission space of the spiral cavity 205 is larger than that of the second leakproof connecting device 206. The second leakproof connecting device 206 is fixedly connected with the second temperature insulation transmission pipe device 207 away from the one end of the cylindrical shell 204. The second temperature insulation transmission pipe device 207 is fixedly connected with the cooling medium cooling acceleration device 201 away from the one end of the first temperature insulation transmission pipe device 202. The axis of the first temperature insulation transmission pipe device 202 and the axis of the second temperature insulation transmission pipe device 207 are in the same plane. The cooling medium transmission space of the second leakproof connecting device 206 is consistent with the cooling medium transmission space of the second temperature insulation transmission pipe device 207. The first cylindrical shell 1 is fixedly connected with the condenser pipe device 3.

[0022] The working principle of the embodiment is as follows: the first rotating device 2015 rotates, the rotation of the first rotating device 2015 drives the rotation of the airfoil fan blade 2016 on the output shaft of the first rotating device 2015, since the airfoil fan blade 2016 is inclined, when the inclined airfoil fan blade 2016 rotates, the airfoil fan blade 2016 cuts into the air, in the process of rotation of the inclined airfoil fan blade 2016, one side of the airfoil fan blade 2016 pushes the air, so that the air generates a component velocity along the inclination direction of the airfoil fan blade 2016, thereby making the air advance, the air that advances wraps the cooling medium and moves away from the rectangular shell 2011 to the direction close to the first temperature insulation transmission pipe device 202, when the airflow that wraps the cooling medium leaves the rectangular shell 2011 and enters the first temperature insulation transmission pipe device 202, since the cooling medium transmission space of the first temperature insulation transmission pipe device 202 is smaller than the cooling medium transmission space of the rectangular shell 2011, the moving speed of the cooling medium wrapped by the airflow is increased in this process, then the moving cooling medium moves to the direction close to the cylindrical shell 204 at a faster moving speed under the push of the airflow, in the process of movement, since the first temperature insulation transmission pipe device 202 has strong temperature insulation capacity, the temperature of the cooling medium in this stage is hardly lost, then the airflow continues to move away from the first temperature insulation transmission pipe device 202 and enters the first leakage prevention connection device 203, then when the airflow that wraps the cooling medium leaves the first leakage prevention connection device 203 and enters the cylindrical shell 204, since the cooling medium transmission space of the cylindrical shell 204 is smaller than the cooling medium transmission space of the leakage prevention connection device, the moving speed of the cooling medium wrapped by the airflow is increased, the cooling medium that enters the cylindrical shell 204 moves along the spiral cavity 205, in this process, the heat of the cooling medium is continuously lost, and since the airflow is accelerated twice, the accumulation of dirt on the surface of the spiral cavity 205 is reduced, when the heat of the cooling medium is sufficiently lost and the cooling medium leaves the spiral cavity 205 and enters the second leakage prevention connection device 206, since the cooling medium transmission space of the second leakage prevention connection device 206 is smaller than the cooling medium transmission space of the spiral cavity 205, the moving speed of the cooling medium wrapped by the airflow is increased, so that the cooling medium wrapped by the airflow passes through the second temperature insulation transmission pipe device 207 into the inside of the tortuous pipe 2013 more quickly, when the cooling medium wrapped by the airflow leaves the second temperature insulation transmission pipe device 207 and enters the tortuous pipe 2013, since the cooling medium transmission space of the second temperature insulation transmission pipe device 207 is smaller than the cooling medium transmission space of the tortuous pipe 2013, the moving speed of the cooling medium that enters the tortuous pipe 2013 is reduced, then since the temperature reduction device 2012 wraps the tortuous pipe 2013, the heat of the cooling medium in the inside of the tortuous pipe 2013 is absorbed and the temperature is reduced, when the cooling medium wrapped by the airflow leaves the tortuous pipe 2013 and enters the inside of the rectangular shell 2011,The cooling medium then re-enters the first temperature barrier pipe device 202 as the air flow moves, and the cycle continues.

[0023] Embodiment two, on the basis of embodiment one, please refer to Figures 6-10 The application provides a technical scheme: the condenser pipe device 3 comprises a second cylindrical shell 301, the axis of the second cylindrical shell 301 coincides with the axis position of the cylindrical shell section 204, the second cylindrical shell 301 is located inside the cylindrical shell section 204, the second cylindrical shell 301 is fixedly connected with a triangular arrangement pipe bundle 302 inside, the triangular arrangement pipe bundle 302 is provided with an internally threaded pipe bundle 303 inside, the turbulent effect and the spiral structure of the internally threaded pipe bundle 303 can reduce the accumulation of dirt on the pipe wall, keep efficient heat transfer, one end of the second cylindrical shell 301 close to the second leak-proof connecting device 206 is fixedly connected with an air inlet 304, the air inlet 304 is gradually expanded in shape, one end of the second cylindrical shell 301 close to the first leak-proof connecting device 203 is fixedly connected with an air outlet 305, the size of the air inlet 304 is inconsistent with the minimum inner diameter of the air outlet 305, the air outlet 305 is gradually tapered in shape, one end of the air outlet 305 away from the second cylindrical shell 301 is fixedly connected with a bifurcated pipe device 306, the bifurcated pipe device 306 is used for separating and discharging the condensed gas and the condensed liquid, the inner wall diameter of the bifurcated pipe device 306 is consistent with the minimum inner wall diameter of the air outlet 305, the bifurcated pipe device 306 comprises a connecting pipe port 3061, the connecting pipe port 3061 is provided with an upper pipe port 3062 away from the second cylindrical shell 301, the upper pipe port 3062 is fixedly connected with a first filter screen 3063 inside, the bottom of the upper pipe port 3062 is provided with a lower pipe port 3064, the lower pipe port 3064 is fixedly connected with a second filter screen 3065 inside, the precision size of the first filter screen 3063 is consistent with that of the second filter screen 3065, the first filter screen 3063 and the second filter screen 3065 are used for avoiding impurities outside from entering the device, and causing damage to the efficiency and structure of the device.

[0024] The working principle of the embodiment is as follows: the gas to be condensed enters the gas inlet 304, and then the gas enters the triangular arrangement pipe bundle 302. Since the space of the gas inlet 304 is larger than that of the triangular arrangement pipe bundle 302, the flow speed of the gas increases after leaving the gas inlet 304 and entering the triangular arrangement pipe bundle 302. At the same time, the internal thread pipe bundle 303 in the triangular arrangement pipe bundle 302 increases the contact area between the gas and the triangular arrangement pipe bundle 302. During the movement of the gas in the triangular arrangement pipe bundle 302, the gas gradually condenses. Then, the condensed gas and the liquid generated after condensation leave the triangular arrangement pipe bundle 302 and enter the gas outlet 305. Since the space of the triangular arrangement pipe bundle 302 is smaller than that of the gas outlet 305, the flow speed of the gas decreases. Then, the condensed gas continues to move and leaves the gas outlet 305 together with the liquid generated after condensation, and enters the bifurcated pipe device 306 through the connecting pipe opening 3061. The condensed gas rises along the pipe and is discharged from the upper pipe opening 3062. The liquid generated after condensation falls along the pipe and is discharged from the lower pipe opening 3064. When the device works outdoors, the first filter screen 3063 and the second filter screen 3065 located at the upper pipe opening 3062 and the lower pipe opening 3064 block large impurities from the outside.

[0025] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A chemical condenser comprising a first cylindrical shell (1), characterized in that: The first cylindrical shell (1) surface fixedly connected with cooling medium flow organization (2); The cooling medium flow organization (2) includes cooling medium cooling acceleration device (201), the first temperature insulation transmission pipe device (202) is fixedly connected with cooling medium cooling acceleration device (201) perpendicular to the end surface of first cylindrical shell (1) axis, the first temperature insulation transmission pipe device (202) is fixedly connected with first leakproof connection device (203) away from cooling medium cooling acceleration device (201) one end, the first leakproof connection device (203) is fixedly connected with cylindrical shell course (204) away from first temperature insulation transmission pipe device (202) one end, the inside of cylindrical shell course (204) is provided with spiral cavity (205), the second leakproof connection device (206) is fixedly connected with cylindrical shell course (204) away from first leakproof connection device (203) one end, the second leakproof connection device (206) is fixedly connected with second temperature insulation transmission pipe device (207) away from cylindrical shell course (204) one end; The condenser pipe device (3) includes second cylindrical shell (301), the second cylindrical shell (301) is fixedly connected with triangular arrangement pipe bundle (302) inside, the inside of triangular arrangement pipe bundle (302) is provided with internal thread pipe bundle (303), the second cylindrical shell (301) is fixedly connected with air inlet (304) near second leakproof connection device (206) one end, the second cylindrical shell (301) is fixedly connected with air outlet (305) near first leakproof connection device (203) one end, the air outlet (305) is fixedly connected with bifurcation pipe device (306) away from second cylindrical shell (301) one end.

2. A chemical condenser according to claim 1, characterized in that: The axis of second cylindrical shell (301) coincides with the axis position of cylindrical shell course (204), the second cylindrical shell (301) is located inside cylindrical shell course (204), the air inlet (304) is gradually expanded shape, the air outlet (305) is gradually tapered shape, the size of air inlet (304) and the minimum inner diameter of air outlet (305) are not consistent, the inner wall diameter of bifurcation pipe device (306) and the minimum inner wall diameter of air outlet (305) are consistent.

3. A chemical condenser according to claim 2, characterized in that: The bifurcation pipe device (306) includes connecting pipe mouth (3061), the connecting pipe mouth (3061) is provided with upper pipe mouth (3062) away from second cylindrical shell (301) one end, the inside of upper pipe mouth (3062) is fixedly connected with first filter screen (3063), the bottom of upper pipe mouth (3062) is provided with lower pipe mouth (3064), the inside of lower pipe mouth (3064) is fixedly connected with second filter screen (3065), the precision size of first filter screen (3063) and second filter screen (3065) are consistent.

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