Self-cleaning mass and heat transfer filler and device
By designing self-cleaning mass transfer heat transfer filler, using the combination of hollow hollow spherical structure and rolling float, the problem of blockage and high cleaning frequency of filler in the oil and gas process equipment tower is solved, and the sustainability of mass transfer and heat transfer effect and the reduction of energy consumption is achieved.
Patent Information
- Application Number
- CN202311452463.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-02
- Publication Date
- 2025-05-06
AI Technical Summary
The floating valves, Ball rings and other packings in the existing oil and gas process equipment towers are easily blocked when the incoming material is unstable, resulting in a decrease in mass and heat transfer effect, and the cleaning frequency is high, so the media separation efficiency cannot be continuously guaranteed.
A self-cleaning mass transfer heat transfer filler is designed, including an outer screen, an intermediate screen and a float ball. The outer screen and an intermediate screen are hollow hollow ball structures. The float ball can roll between the outer screen and the intermediate screen. Through the design of hollow balls and solid balls, impurities can be cleaned and the risk of blockage is reduced.
It effectively reduces blockage caused by changes in incoming materials, reduces the cleaning frequency of mass-transfer heat transfer fillers, reduces the energy consumption of the reboiler, ensures the sustainability of the mass-transfer heat transfer effect, and reduces the distillation and flooding problems when incoming materials are unstable.
Smart Images
Figure CN119926346A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of application of tower internal components of oil and gas process equipment, and in particular belongs to a self-cleaning mass and heat transfer filler and device. Background Art
[0002] In order to achieve the requirements of separation or regeneration of oil and gas media and auxiliary antifreeze in oil and gas stations, float valves, ball rings and other fillers are installed in each tower, and different levels and forms are distributed in the tower according to the different physical properties of the media. In order to make the temperature gradient reasonable during medium separation (including fractionation) and produce a high-purity separation effect, it is often necessary to set up gradually arranged mass transfer and heat transfer devices in the tower to achieve this. The process is to exchange heat in the mass transfer and heat transfer devices through the up and down media in the tower, or to form heat exchange outside the mass transfer and heat transfer devices through the up and down gas and liquid in the tower. When the incoming material to the tower is unstable, the feed has a greater impact on the up and down media in the tower, and the mass transfer and heat transfer effect of the fillers such as float valves and ball rings in the tower is not lasting and stable. Especially when the float valves, ball rings and other components are contaminated or blocked, the mass transfer and heat transfer effect is reduced, the fraction is unqualified, and the tower is flooded.
[0003] At present, the problem of reduced mass and heat transfer due to contamination or blockage of the filler is often solved by regular cleaning such as during maintenance, and the enlarged heat exchange surface after cleaning is used to ensure the medium separation efficiency. Simply relying on the cleaning method will lead to problems such as the inability to continuously ensure the heat exchange efficiency during the maintenance cycle, poor ability to resist unstable incoming materials, and inability to effectively ensure the qualified separation products. Summary of the invention
[0004] In order to solve the problems existing in the prior art, the present invention provides a self-cleaning mass transfer and heat transfer filler and device, which can effectively reduce the blockage caused by changes in incoming materials during operation, and at the same time greatly reduce the cleaning frequency of the mass transfer and heat transfer filler and reduce the energy consumption of the reboiler, solve the blockage that may be caused by the operation of the existing float valve, ball ring and other distillation and regeneration towers, ensure the sustainability of the mass transfer and heat transfer effects, and reduce the problems of unqualified fractions and tower flooding caused by impact when the incoming materials are unstable.
[0005] To achieve the above objectives, the present invention provides the following technical solutions: a self-cleaning mass transfer and heat transfer filler, comprising an outer screen, the outer screen is a hollow structure, a plurality of floats are arranged in the outer screen, the outer walls of the plurality of floats are in contact with the inner wall of the outer screen and can move relative to the outer screen.
[0006] Furthermore, it also includes at least one middle screen, which is a hollow structure. The middle screen is arranged inside the outer screen, and multiple floats are arranged between the middle screen and the outer screen. The outer wall of the float is in contact with the wall surface of the outer screen and the middle screen and can roll on the outer screen and the middle screen.
[0007] Furthermore, a floating ball is also arranged in the middle screen.
[0008] Furthermore, the outer screen is a hollow spherical structure and is made of stainless steel or high temperature or corrosion resistant ceramics.
[0009] Furthermore, the intermediate screen is a hollow spherical structure and is made of stainless steel or high temperature or corrosion resistant ceramics.
[0010] Furthermore, the floating ball is a hollow ball.
[0011] Furthermore, the floating ball is a hollow ball and / or a solid ball.
[0012] Furthermore, both the hollow ball and the solid ball are made of stainless steel or high temperature or corrosion resistant ceramics.
[0013] The present invention also provides a medium separation tower, which is filled with the self-cleaning mass transfer and heat transfer filler.
[0014] Furthermore, the mass transfer and heat transfer fillers are arranged in parallel and spaced apart in multiple layers between the upper and lower partitions of the tower, and the filling height of the mass transfer and heat transfer fillers covers the feed inlet and the reflux port of the tower.
[0015] Compared with the prior art, the present invention has at least the following beneficial effects:
[0016] The present invention provides a self-cleaning mass transfer and heat transfer filler. By arranging an external screen and a floating ball, the convection path of the oil and gas medium in the tower is increased, thereby repeatedly generating heat transfer and mass transfer effects, which can effectively reduce blockage caused by changes in incoming materials during operation, and at the same time greatly reduce the cleaning frequency of the mass transfer and heat transfer filler and reduce the energy consumption of the reboiler, solve the blockage that may be caused by the operation of the existing float valve, ball ring and other distillation and regeneration towers, ensure the sustainability of the mass transfer and heat transfer effects, and reduce the problems of unqualified fractions, tower flooding, etc. caused by impact when the incoming materials are unstable.
[0017] Furthermore, the present invention arranges an intermediate screen in the outer screen, and arranges a float between the outer screen and the intermediate screen. The rollable float forms a relative position with the outer screen and the intermediate screen, ensuring that when the incoming material to the tower is unstable, local rolling is formed and the heat transfer and mass transfer channels are cleaned to ensure stable fraction stratification and continuous regeneration effect.
[0018] Furthermore, the float of the present invention can be a hollow ball and / or a solid ball. The hollow ball can make the mass transfer and heat transfer path longer by staggering holes and spaces. The friction between the outer wall of the hollow ball and the outer screen and the middle screen and the rolling of the solid ball can clean up impurities, thereby removing impurities in the sieve holes of the outer screen and the middle screen, reducing the probability of sieve hole blockage and ensuring the medium heat exchange and mass transfer efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Schematic diagram of the tower body of the present invention;
[0020] Figure 2Schematic diagram of the packing of the present invention;
[0021] Figure 3 A schematic diagram of the hollow ball arrangement of the present invention;
[0022] Figure 4 A schematic diagram showing the hollow ball and the solid ball of the present invention;
[0023] In the attached figure: 1. tower; 2. mass transfer and heat transfer filler, 21. outer screen, 22. hollow balls, 23. middle screen, 24 solid balls; 3. feed inlet; 4. reflux inlet; 5. tower top outlet. DETAILED DESCRIPTION
[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0025] like Figures 1 to 4 As shown, the present invention provides a self-cleaning mass transfer and heat transfer filler, including an outer screen 21, an intermediate screen 23 and a floating ball, wherein the outer screen 21 and the intermediate screen 23 are hollow spherical structures, the inner diameter of the intermediate screen 23 is smaller than the inner diameter of the outer screen 21, the intermediate screen 23 is arranged inside the outer screen 21, and a floating ball is arranged between the outer screen 21 and the intermediate screen 23. The floating ball arranged between the outer screen 21 and the intermediate screen 23 is in contact with the outer screen 21 and the intermediate screen 23 and can move relative to the outer screen 21 and the intermediate screen 23. The floating ball is rollingly connected to the intermediate screen 23 through the inner wall of the outer screen 21, and the screen holes of the outer screen 21 and the through holes of the floating ball can be staggered relative to the screen holes of the intermediate screen 23, thereby increasing the mass transfer exchange path and increasing the heat exchange area.
[0026] Preferably, the floating ball is a hollow ball 22 and / or a solid ball 24. The hollow ball 22 can make the mass transfer and heat transfer path longer due to the holes and interlaced spaces, and the solid ball 24 can make the impurities cleaning effect better when rolling.
[0027] Preferably, the outer screen 21, the middle screen 23 and the floating ball are all made of stainless steel or ceramics resistant to high temperature or corrosion.
[0028] Preferably, in the present invention, when the diameter of the intermediate screen 23 does not exceed the radius of the outer screen 21, more than two intermediate screens 23 can be arranged in a rolling manner in the outer screen 21;
[0029] Preferably, the intermediate screen 23 of the present invention can also be omitted according to actual conditions;
[0030] Preferably, a floating ball is disposed inside the intermediate screen 23 of the present invention.
[0031] Preferably, the number and arrangement of the intermediate screen 23 and the floating ball of the present invention can be determined according to actual conditions.
[0032] Preferably, the sieve holes of the outer sieve 21, the middle sieve 23 and the hollow balls 22 are circular or polygonal.
[0033] like Figure 1 As shown, when in use, the outer screen 21, the middle screen 23 and the floating ball are assembled to obtain the mass transfer and heat transfer filler 2, and the mass transfer and heat transfer filler 2 is arranged in parallel and spaced layers in the tower 1 between the upper and lower partitions in the tower 1; generally speaking, the mass transfer and heat transfer fillers 2 used with smaller density differences between the medium components are arranged more closely.
[0034] The inner cavity of the tower 1 is filled and densely packed with a mass transfer heat transfer filler 2, the filling height of which covers the feed port 3 and the reflux port 4. When the tower is running, the feed and the reflux enter the tower 1 from the feed port 3 and the reflux port 4 respectively and go down. When the feed and the reflux fluid go down in the tower 1, they collide and rub with the rising gas and liquid at the bottom of the tower at the mass transfer heat transfer filler 2. The three streams of gas and liquid are continuously separated and merged by the mass transfer heat transfer filler 2 in the tower 1 to form a gas-liquid mixture and enter the mass transfer heat transfer filler 2, and continue to form a blending and separation effect under the action of the outer screen 21, the middle screen 23 and the floating ball.
[0035] Specifically, taking the hollow ball as an example, a plurality of hollow balls 22 are built between the outer screen 21 and the middle screen 23, and the hollow balls 22 are rollable between the inner wall of the outer screen 21 and the outer wall of the middle screen 23. The sieve holes of the outer screen 21 and the through holes of the hollow balls 22 are staggered relative to the middle screen 23, thereby increasing and separating the mass transfer path and increasing the heat exchange area. The middle screen 23 and the hollow balls 22 arranged in the outer screen 21 can reduce the flow energy of the upper and lower cross media to produce a throttling effect. At the same time, through the displacement of the hollow balls 22 relative to the outer screen 21 and the middle screen 23, the mass transfer and heat transfer filler 2 can achieve uniform dispersion of the incoming materials at the feed port 3, the reflux port 4 and the rising airflow at the bottom of the tower.
[0036] When the incoming material is unstable (or increases), the incoming material enters the inner cavity of the tower 1 from the feed port 3. First, the incoming material generates an expansion flow effect in the mass transfer and heat transfer filler 2. The gas and liquid impact the hollow ball 22 and move between the outer screen 21 and the middle screen 23. The hollow ball 22 on the outer screen 21 and the middle screen 23 forms a floating collision with the up-and-down gas and liquid medium. The up-and-down gas and liquid pass through the sieve holes in the outer screen 21, the middle screen 23, and the hollow ball 22, which increases the path for the mutual energy exchange between the up-and-down media. The gas and liquid are transferred outside and inside the outer screen 21, the middle screen 23, and the hollow ball 22. After heating, component stratification and gas-liquid phase separation are formed in the tower 1, and the above-mentioned mass transfer and heat transfer process is continued. The mass transfer and heat transfer filler 2 disperses the material from the feed port 3 and the rising airflow at the bottom of the tower 1, so that the loss energy is reduced and the flow rate is separated. The medium flow acting on the mass transfer and heat transfer filler 2 enters through the sieve holes of the mass transfer and heat transfer filler 2, and continues to diffuse and blend between the middle sieve 23 and the hollow balls 22, thereby ensuring that the mass transfer and heat transfer path in the mass transfer and heat transfer filler 2 continues to grow, reducing the probability that the efficiency of the mass transfer and heat transfer filler 2 is reduced due to the unstable material from the feed port 3 at the gas phase medium at the tower top outlet 5.
[0037] In addition, the outer screen 21, the middle screen 23 and the hollow ball 22 can move under the impact of gas and liquid, ensuring that the sieve holes of the outer screen 21 and the middle screen 23 remove impurities during the relative movement of the hollow ball 22, and finally achieving the continuous growth of the mass transfer and heat transfer path in the mass transfer and heat transfer filler 2. At the same time, the relative movement of the outer screen 21, the middle screen 23 and the hollow ball 22 reduces the impact force of the medium and increases the gas-liquid exchange efficiency, thereby reducing the heat of the reboiler at the bottom of the tower 1 and maintaining a stable exchange efficiency of the gas-liquid medium in the tower 1 in the mass transfer and heat transfer filler 2 to achieve the purpose of energy saving and efficiency improvement.
[0038] Furthermore, when the amount of feed is larger, the upward airflow at the bottom of the tower 1 has a stronger pushing and exchanging effect on the liquid from the feed port 3. The gas-liquid flow is separated and separated by the mass transfer and heat transfer filler 2, and the upward and downward medium passes through the outer screen 21, the middle screen 23, and the hollow ball 22. The larger the amount of the medium passing through, the stronger the exchange effect. The relative movement of the hollow ball 22 between the outer screen 21 and the middle screen 23 intensifies, and the spherical surface of the hollow ball 22 forms a friction effect with the outer screen 21 and the middle screen 23, thereby removing impurities in the sieve holes of the outer screen 21 and the middle screen 23, reducing the probability of sieve hole blockage and ensuring the medium heat exchange and mass transfer efficiency, or filling some solid balls 24 in the outer screen 21 and the middle screen 23. The solid balls 24 have a better effect of removing impurities in the sieve holes of the outer screen 21 and the middle screen 23 when rolling.
Claims
1. A self-cleaning mass transfer and heat transfer filler, characterized in that: The device comprises an outer screen (21), which is a hollow structure. A plurality of floating balls are arranged in the outer screen (21), and the outer walls of the plurality of floating balls are in contact with the inner wall of the outer screen (21) and can move relative to the outer screen (21).
2. A self-cleaning mass transfer and heat transfer filler according to claim 1, characterized in that: The invention also comprises at least one intermediate screen (23), the intermediate screen (23) being a hollow structure, the intermediate screen (23) being arranged inside the outer screen (21), a plurality of floating balls being arranged between the intermediate screen (23) and the outer screen (21), the outer walls of the floating balls being in contact with the walls of the outer screen (21) and the intermediate screen (23) and being able to roll on the outer screen (21) and the intermediate screen (23).
3. A self-cleaning mass transfer and heat transfer filler according to claim 2, characterized in that: A floating ball is also arranged in the middle screen (23).
4. The self-cleaning mass and heat transfer filler according to claim 1, characterized in that: The outer sieve (21) is a hollow spherical structure and is made of stainless steel or high temperature or corrosion resistant ceramics.
5. A self-cleaning mass and heat transfer filler according to claim 2 or 3, characterized in that: The intermediate screen (23) is a hollow spherical structure and is made of stainless steel or high temperature or corrosion resistant ceramics.
6. A self-cleaning mass and heat transfer filler according to any one of claims 1 to 3, characterized in that: The floating ball is a hollow ball (22).
7. A self-cleaning mass and heat transfer filler according to any one of claims 1 to 3, characterized in that: The floating ball is a hollow ball (22) and / or a solid ball (24).
8. The self-cleaning mass and heat transfer filler according to claim 7, characterized in that: The hollow ball (22) and the solid ball (24) are both made of stainless steel or ceramics resistant to high temperature or corrosion.
9. A medium separation tower, characterized in that: It is filled with the self-cleaning mass and heat transfer filler (2) according to any one of claims 1 to 3.
10. A medium separation tower according to claim 9, characterized in that: The mass transfer and heat transfer filler (2) is arranged in parallel and spaced apart in multiple layers between the upper and lower partitions of the tower (1), and the filling height of the mass transfer and heat transfer filler (2) covers the feed inlet (3) and the reflux port (4) of the tower (1).