Amine stripping equipment based on high-efficiency filler
By introducing rotating filler components and high-speed transmission shafts into natural gas decarbonization equipment, the number of contact between raw natural gas and amine liquid is increased, and combined with the self-rotation cleaning mechanism, the poor decarbonization effect of natural gas and difficulty in filtration of impurities in existing equipment is solved. The problem has achieved more efficient CO2 removal and natural gas quality improvement.
Patent Information
- Application Number
- CN202411066804.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2024-05-06
- Filing Date
- 2024-08-06
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2044-08-06
AI Technical Summary
In the existing natural gas decarbonization equipment, the raw natural gas stays in the absorption tower for a short time and is difficult to make full contact with the amine liquid, resulting in unsatisfactory decarbonization effect, and there is also the problem that solid suspended substances affect the quality of natural gas.
An amine gas extraction equipment based on high-efficiency filler is designed. Through rotary filler assembly and high-speed transmission shaft, the residence time of raw natural gas is extended and the number of contacts with amine liquid is increased. The rotary spray amine liquid and high-speed soaker are realized. Fully contact and decarbonize, and filter impurities with a rotating cleaning mechanism.
It effectively improves the CO2 removal efficiency in natural gas, extends the service life of filler components, and improves the cleanliness of equipment and the quality of natural gas through high-speed vortex airflow and rotation cleaning mechanism.
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Figure CN118577111B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of gas stripping towers, in particular to amine gas stripping equipment based on high-efficiency fillers. Background Art
[0002] Natural gas is a recognized clean energy source with advantages such as high calorific value, less pollution and convenient use. At present, the demand for natural gas is increasing, and higher requirements are put forward for its storage and transportation efficiency. Since the volume of liquefied natural gas is only 1 / 600 of the volume of gas under standard conditions before liquefaction, large-scale cross-ocean transportation of natural gas is mainly carried out in the form of liquefied raw natural gas. Natural gas must be pretreated before liquefaction, and deep decarbonization is an important part of pretreatment. It is usually required that the CO2 content in natural gas before liquefaction is less than 50ppm. At present, the main method of natural gas decarbonization is amine absorption, that is, using amine liquid to absorb CO2 in raw natural gas.
[0003] For example, patent document CN 106268176 B discloses a process for deep decarbonization of raw natural gas, which adopts the following steps: 1) pressurizing the decarbonization absorption tower; 2) using a centrifugal pump to continuously inject a circulating amount of alcohol amine solution into the top of the absorption tower; 3) after the temperature and pressure of the decarbonization absorption tower are stabilized, the raw natural gas is continuously introduced into the bottom of the decarbonization absorption tower, and the purified natural gas obtained after CO2 is absorbed and decarbonized by the alcohol amine solution flows out from the top of the decarbonization absorption tower; 4) the alcohol amine solution that absorbs CO2 is discharged from the bottom of the decarbonization absorption tower, and after being regenerated by the regeneration system, it is returned to the top of the decarbonization absorption tower through a centrifugal pump for recycling. It should be noted that the absorption tower disclosed in the patent document is a gas stripping tower used for decarbonizing natural gas.
[0004] However, the above patent still has certain technical defects when decarbonizing natural gas. The specific analysis is as follows: Figure 1It can be clearly seen that the raw natural gas enters the tower from the bottom of the absorption tower, and the alcohol amine solution enters the tower from the top of the absorption tower. Since the raw natural gas is a gas, it will move upward in the absorption tower, and since the alcohol amine solution is a liquid, it will move downward in the absorption tower. The raw natural gas and the alcohol amine solution will contact each other in countercurrent in the absorption tower. The two react chemically during countercurrent contact to remove CO2 from the raw natural gas, and the clean natural gas leaves the tower from the top of the absorption tower. In order to effectively remove carbon dioxide from the raw natural gas, the gas-liquid two phases must not only be fully contacted, but also the longer the residence time of the raw natural gas in the tower and the more times the gas-liquid two phases contact, the easier it is to remove carbon dioxide from the raw natural gas. However, in the above patent documents, the raw natural gas can only contact with the amine liquid once in the absorption tower, and the residence time of the raw natural gas in the absorption tower is short, so it is difficult to effectively contact the amine liquid in the absorption tower comprehensively and repeatedly, so the actual decarbonization effect of the raw natural gas is not ideal. At the same time, since the mined raw natural gas contains certain suspended solids, such as particulate matter formed by calcium and magnesium ions, and too many impurities in the natural gas will affect the quality of the natural gas.
[0005] Based on this, an amine stripping device based on high-efficiency filler is proposed. Summary of the invention
[0006] In view of the shortcomings of the prior art, the present invention provides an amine stripping device based on a high-efficiency filler, and the specific technical scheme is as follows:
[0007] An amine stripping device based on high-efficiency filler, comprising:
[0008] The gas stripping tower body has a top cover on the top, an air inlet pipe on one side of the bottom for allowing the raw natural gas to enter, and a liquid discharge nozzle on the bottom side close to the air inlet pipe for convenient material discharge;
[0009] A driving component, which is composed of a main body and a driving end mounted on the main body, wherein the driving component is mounted on the top cover, and the main body of the driving component is retained outside, and the driving end is located at the upper part of the inner cavity of the gas stripping tower body;
[0010] A rotary amine liquid spraying component, which is composed of a hollow support part and a rotary spraying part installed on the hollow support part, wherein the rotary amine liquid spraying component is installed on the top cover, and the top end of the hollow support part of the rotary amine liquid spraying component extends outward, and the rotary spraying part is located at the upper part of the inner cavity of the gas stripping tower body;
[0011] A transmission component is mounted on the lower end of the hollow support portion of the rotary amine liquid spraying component, and the transmission component is located in the inner cavity of the gas stripping tower body and is in transmission connection with the driving end of the driving component;
[0012] A transmission shaft rod is installed in the inner cavity of the gas stripping tower body, the top end of the transmission shaft rod is connected to the rotating spraying part of the rotary amine liquid spraying component, and the bottom end of the transmission shaft rod is connected to the heating mechanism;
[0013] a packing assembly mounted on the transmission shaft;
[0014] An air suction member mounted on the lower end of the transmission shaft;
[0015] An amine liquid feeding mechanism, which is composed of an amine liquid storage part and a suction part installed on the amine liquid storage part, wherein one end of the suction part of the amine liquid feeding mechanism is connected to the hollow supporting part of the rotary amine liquid spraying component;
[0016] The main body of the driving component can make the driving end rotate at high speed, and through the transmission cooperation with the transmission component, the rotating spraying part of the rotating amine liquid spraying component can be rotated at high speed, and the amine liquid can penetrate into the packing component in a rotating spraying manner. When the rotating spraying part of the rotating amine liquid spraying component rotates, the transmission shaft can rotate synchronously with the rotation of the rotating spraying part of the rotating amine liquid spraying component, and the packing component and the air suction member can rotate synchronously with the rotation of the transmission shaft. When the air suction member rotates at high speed, the bottom of the inner cavity of the gas stripping tower body is formed as an air inlet area, and the middle and upper parts of the inner cavity of the gas stripping tower body are formed as an air outlet area, and the water vapor generated by the heating mechanism and the raw natural gas entering from the air inlet pipe are attracted upward. When being attracted upward, the water vapor and the raw natural gas can continuously pass through the packing component, and in the process of penetrating each packing component, the water vapor and the raw natural gas moving upward can continuously countercurrently contact with the amine liquid in the packing component;
[0017] An impurity filter cartridge installed on the air inlet pipe;
[0018] A filter element installed in the inner cavity of the impurity filter cartridge; and
[0019] A self-rotating cleaning mechanism capable of cleaning the filter element is installed in the inner cavity of the impurity filtering cartridge, and the self-rotating cleaning mechanism can rotate at high speed along with the flowing natural gas.
[0020] Preferably, it further comprises: a heating mechanism, which is installed at the bottom of the gas stripping tower body, the heating mechanism comprises a heating cylinder, a cylinder cover is fixedly installed at the top opening of the heating cylinder, and the end surface of the top opening of the heating cylinder is fixedly connected to the end surface of the bottom opening of the gas stripping tower body;
[0021] The edge of the cylinder cover is circumferentially mounted with a plurality of one-way jet components, and the bottom of the heating cylinder is fitted with an electric heating plate;
[0022] A filling hole is provided on the upper part of the side wall of the heating cylinder, and a water injection pipe is fixedly installed on the heating cylinder at the corresponding filling hole, and one end of the top of the water injection pipe is inclined upward, and a valve is installed on the water injection pipe, wherein the valve is composed of a valve core and a valve stem, the valve core of the valve is rotatably installed in the water injection pipe, and the valve stem of the valve is rotatably installed outside the water injection pipe;
[0023] The heating mechanism also includes a heat-insulating sleeve, which is sleeved and mounted on the outer side wall of the heating cylinder;
[0024] The heating mechanism further comprises an L-shaped connecting pipe, the bottom end of which penetrates inwardly from the bottom of the side wall of the heating cylinder and extends to the bottom of the inner cavity of the heating cylinder, and the top end of which extends upward;
[0025] Each of the one-way jet components comprises a one-way valve, each of which is embedded at the edge of the cylinder cover, one end of the bottom of each of the one-way valves is connected to the inner cavity of the heating cylinder, one end of the top of each of the one-way valves is fixedly mounted with an atomizing nozzle, and the inner cavity of each of the atomizing nozzles is connected to the inner cavity of the one-way valve;
[0026] Each of the atomizing nozzles is provided with a plurality of air injection micro-holes.
[0027] Preferably, a liquid inlet pipe is fixedly installed at the center of the upper surface of the top cover, and the liquid inlet pipe is connected to the inner cavity of the gas stripping tower body;
[0028] The top cover is provided with a plug-in hole on one side close to the liquid inlet pipe;
[0029] The main body of the driving component includes a motor, which is fixedly mounted on the top cover and corresponds to the plug hole, and the output shaft of the motor passes downward through the plug hole;
[0030] The driving end of the driving component is a driving gear, and the driving gear is fixedly mounted on the output shaft of the motor;
[0031] The hollow supporting part of the rotary amine liquid spraying component includes a plug, which is inserted into the liquid inlet pipe and fixedly connected to the liquid inlet pipe. The upper part of the plug is also fixedly installed with an anti-slip ring at the end surface corresponding to the liquid inlet pipe.
[0032] The lower part of the cannula is integrally formed with an annular flange;
[0033] The rotary spraying part of the rotary amine liquid spraying component includes a sleeve, which is sleeved and installed on the lower part of the insert, and the bottom end surface of the sleeve is in contact with the annular flange, and the sleeve is rotatably connected to the insert;
[0034] A fixed plate is fixedly installed at the bottom of the sleeve, an annular rib is fixedly installed on the lower surface edge of the fixed plate, a liquid outlet plate is fixedly installed on the bottom end surface of the annular rib, and a plurality of liquid outlet microholes are opened on the liquid outlet plate;
[0035] Wherein, an amine liquid spraying chamber is formed between the fixed disk, the annular rib and the liquid outlet disk;
[0036] The transmission component is a transmission gear, which is fixedly mounted on the side wall of the sleeve and meshes with the driving gear;
[0037] The transmission gear and the driving gear are on the same horizontal plane;
[0038] An exhaust hole is opened at one side edge of the top cover, and an exhaust pipe is fixedly installed on the top cover at a position corresponding to the exhaust hole, and the inner cavity of the exhaust pipe is connected with the inner cavity of the gas stripping tower body.
[0039] Preferably, a shaft sleeve is fixedly installed at the center of the upper surface of the cylinder cover;
[0040] The top end of the transmission shaft is fixedly connected to the center of the lower surface of the liquid outlet plate, and the bottom end of the transmission shaft is rotatably installed in the shaft sleeve;
[0041] The packing assembly is a plurality of metal perforated plate corrugated regular packing disks, and the plurality of metal perforated plate corrugated regular packing disks are fixedly mounted on the transmission shaft, and the plurality of metal perforated plate corrugated regular packing disks are evenly distributed from top to bottom on the transmission shaft;
[0042] The side wall of each of the metal perforated plate corrugated structured packing disks is in contact with the inner side wall of the gas stripping tower body, and when the plurality of metal perforated plate corrugated structured packing disks rotate, the side wall of each of the metal perforated plate corrugated structured packing disks is slidably connected with the inner side wall of the gas stripping tower body;
[0043] Each of the metal perforated plate corrugated structured packing discs has a plurality of penetration gaps, and the amine liquid sprayed downward can be retained in each penetration gap;
[0044] The air suction member is an impeller, and the impeller is fixedly mounted on the lower part of the transmission shaft.
[0045] Preferably, the amine liquid storage part of the amine liquid feeding mechanism comprises an amine liquid storage box, a top side of the amine liquid storage box is provided with an amine liquid filling port, and a sealing plug is inserted and installed in the amine liquid filling port;
[0046] The suction part of the amine liquid feeding mechanism includes a water pump, which is fixedly installed on one side of the top of the amine liquid storage tank. The water inlet end of the water pump is connected to a first liquid pumping pipe, and the free end of the first liquid pumping pipe passes downward from the top of the amine liquid storage tank and extends to the bottom of the inner cavity of the amine liquid storage tank. The water outlet end of the water pump is connected to a first liquid injection pipe, and the free end of the first liquid injection pipe extends upward and is sleeved on the top of the insert.
[0047] Preferably, a temperature control unit is also installed on the heating mechanism;
[0048] The temperature control unit includes a temperature controller, and the temperature controller is fixedly mounted on the side wall of the thermal insulation sleeve;
[0049] The temperature control unit further comprises a temperature sensing probe, which is embedded on the edge of the cylinder cover, and one end of the bottom of the temperature sensing probe is located in the inner cavity of the heating cylinder;
[0050] The temperature sensing probe is electrically connected to the temperature controller via a wire;
[0051] The temperature controller is electrically connected to the electric heating plate through a wire, and the temperature controller is electrically connected to a municipal power supply through a wire.
[0052] Preferably, one end of the impurity filter cartridge is connected to the air inlet pipe, and the other end is connected to the raw natural gas pipeline;
[0053] When the self-rotating cleaning mechanism rotates at a high speed, the filter element can be cleaned continuously and repeatedly;
[0054] A sleeve joint is integrally formed on one side of the impurity filter cartridge, and a mounting plate is fastened and installed on the other side by bolts. An air intake plug joint is integrally formed at the center of the outer wall of the mounting plate, and the air intake plug joint is connected to the inner cavity of the impurity filter cartridge;
[0055] The air inlet plug connector is connected to the natural gas transmission pipe;
[0056] The socket joint can be sleeve-mounted on the air intake pipe.
[0057] Preferably, the filter element is a filter disc, which is fixedly mounted on the bottom of the inner cavity of the impurity filter cartridge corresponding to the sleeve joint, and a plurality of filter micropores are formed on the filter disc;
[0058] The thickness of the filter disc is 2mm-5mm, and the pore size of each of the filter micropores is 0.1-0.5mm;
[0059] The thickness of the filter disc is 2mm-5mm.
[0060] Preferably, the self-rotating cleaning mechanism comprises a wind wheel, the wind wheel is installed in the inner cavity of the impurity filter cartridge, the self-rotating cleaning mechanism is installed with a cleaning component on the side facing the filter disc, and the cleaning component has a cleaning end;
[0061] The cleaning end of the cleaning component is attached to the side wall of the filter disc;
[0062] The wind wheel can rotate synchronously with the flow of natural gas. When the wind wheel rotates, the cleaning component can also rotate synchronously, and the cleaning end of the cleaning component can be slidably connected with the inner wall of the filter disc;
[0063] Both ends of the wind wheel have a rotating shaft, and both ends of the wind wheel are equipped with an annular bracket;
[0064] The inner rings of the two annular supports are sleeved and mounted on the corresponding rotating shafts, and the outer rings of the two annular supports are fixedly mounted on the inner side wall of the impurity filtering cylinder.
[0065] Preferably, the cleaning end of the cleaning component comprises a connecting disk, a plurality of cleaning rods are fixedly mounted on the side wall of the connecting disk, and the plurality of cleaning rods are equidistantly distributed on the side wall of the connecting disk in a circular manner;
[0066] The cleaning component further comprises a transmission rod, one end of which is fixedly connected to the connection plate at the center of the side wall facing the wind wheel, and the other end of which is fixedly connected to the end surface of the rotating shaft of the wind wheel facing the cleaning component;
[0067] When the wind wheel rotates, the connecting plate and the transmission rod can rotate synchronously with the rotation of the wind wheel, and the multiple cleaning rods can rotate synchronously with the rotation of the connecting plate. When the multiple cleaning rods rotate, the calcium and magnesium particles adhered to the side wall of the filter plate can be cleaned.
[0068] The present invention provides an amine stripping device based on a high-efficiency filler, which has the following beneficial effects:
[0069] 1. In the present invention, in the process of penetrating the packing component, the raw natural gas not only delays the residence time of the raw natural gas in the gas stripping tower body, but also enables the raw natural gas to continuously come into countercurrent contact with the amine liquid permeating in the packing component. During the contact process, the amine liquid reacts chemically with the CO2 in the raw natural gas, thereby effectively decarbonizing the raw natural gas.
[0070] 2. In the present invention, during the rotation of the packing assembly, the raw natural gas can be brought into more complete contact with the amine liquid infiltrated in the packing assembly, and through the high-speed rotation of the packing assembly, an upward vortex airflow can be generated in the inner cavity of the gas lift tower body. The raw natural gas passes through the packing assembly continuously in the form of a spiral motion in the inner cavity of the gas lift tower body along with the vortex airflow. In this process, the residence time of the raw natural gas on the packing assembly can be effectively delayed, so that the CO2 in the raw natural gas can fully contact and react with the amine liquid.
[0071] 3. In the present invention, when the main part of the driving component of the amine liquid feeding mechanism can make the driving end rotate at high speed, and through the transmission cooperation with the transmission component, the rotating spraying part of the rotary amine liquid spraying component can rotate at high speed, the amine liquid can penetrate into the packing component in a rotating spraying manner.
[0072] 4. In the present invention, when the rotating spraying part of the rotating amine liquid spraying component rotates, the transmission shaft can rotate synchronously with the rotation of the rotating spraying part of the rotating amine liquid spraying component, and the stuffing assembly and the suction part can rotate synchronously with the rotation of the transmission shaft. Since the stuffing assembly can rotate synchronously at high speed through the rotation of the transmission shaft, the amine liquid infiltrated in the stuffing assembly can be evenly distributed inside the stuffing assembly under the high-speed rotation of the stuffing assembly.
[0073] 5. In the present invention, when the air suction member rotates at a high speed, the water vapor generated by the heating mechanism and the raw natural gas entering from the air inlet pipe can be sucked upward. When being sucked upward, the water vapor and the raw natural gas can continuously pass through the packing assembly, and in the process of penetrating the packing assembly, the water vapor and the raw natural gas moving upward can continuously contact the amine liquid in the packing assembly in countercurrent.
[0074] 6. In the present invention, since the packing component is in a high-speed rotating state, the reaction products attached to the packing component will be separated from the packing component due to the centrifugal force during the water dissolution process, thereby achieving the cleaning of the packing component.
[0075] 7. In the present invention, the upwardly moving raw natural gas can continuously come into countercurrent contact with the amine liquid in the corresponding metal perforated plate corrugated regular packing disk when passing through the metal perforated plate corrugated regular packing disk one by one. Each time it comes into contact, the amine liquid in the metal perforated plate corrugated regular packing disk can chemically react with the CO2 in the raw natural gas. In the step-by-step reaction process, the CO2 in the raw natural gas can be continuously removed. Therefore, the decarbonization efficiency of the decarbonization equipment is higher.
[0076] 8. In the present invention, particulate matter formed by calcium and magnesium ions in the raw natural gas entering the impurity filter cartridge can be filtered by the filter element, thereby improving the quality of the natural gas; at the same time, when the raw natural gas enters the impurity filter cartridge through its gas pipeline, the high-pressure and high-flow rate raw natural gas will drive the high-speed rotation of the self-rotating cleaning mechanism. When the self-rotating cleaning mechanism rotates at a high speed, it can continuously and repeatedly clean the filter element to avoid clogging of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS
[0077] Figure 1 It is a three-dimensional schematic diagram of the present invention;
[0078] Figure 2 A three-dimensional schematic diagram of a partial cross section of the present invention;
[0079] Figure 3 for Figure 2 The enlarged three-dimensional schematic diagram of part A in the middle;
[0080] Figure 4 A three-dimensional schematic diagram of a partial cross-section of the present invention viewed from above;
[0081] Figure 5 for Figure 4 The enlarged three-dimensional schematic diagram of the middle B part;
[0082] Figure 6 for Figure 4 The three-dimensional schematic diagram of the enlarged C part in the middle;
[0083] Figure 7 A three-dimensional schematic diagram of a partial cross-section of the present invention in a rear view;
[0084] Figure 8 for Figure 7 The three-dimensional schematic diagram of the enlarged D part in the middle;
[0085] Fig. 9 It is a three-dimensional schematic diagram of a partial cross section of the impurity filter cartridge, the filter element and the self-rotating cleaning mechanism of the present invention after being combined;
[0086] Fig.10 for Fig. 9 The three-dimensional schematic diagram after rotating 90° clockwise;
[0087] Fig.11 A three-dimensional schematic diagram of the self-rotating cleaning mechanism of the present invention;
[0088] Fig.12 A three-dimensional schematic diagram of the combination of the wind wheel and the cleaning component of the present invention;
[0089] Fig.13It is a three-dimensional schematic diagram of the combination of the driving component, the rotary amine liquid spraying component, the transmission component, the transmission shaft, the packing assembly and the air suction component of the present invention when viewed from the bottom;
[0090] Fig.14 It is a three-dimensional schematic diagram of a partial cross section of the rotary amine liquid spraying component of the present invention;
[0091] Fig.15 for Fig.14 A three-dimensional diagram looking upwards;
[0092] Fig.16 is a three-dimensional schematic diagram of a partial cross section of the heating mechanism of the present invention;
[0093] Fig.17 It is a schematic diagram of the main structure of the cross section of the present invention;
[0094] Fig.18 It is a three-dimensional schematic diagram of the gas stripping tower body of the present invention;
[0095] Fig.19 is a three-dimensional schematic diagram of embodiment 10 of the present invention;
[0096] Fig. 20 It is a three-dimensional schematic diagram of the rear view of the tenth embodiment of the present invention.
[0097] In the figure: 10, heating mechanism; 101, heating cylinder; 1011, filling hole; 102, cylinder cover; 103, one-way jet component; 1031, one-way valve; 1032, atomizing nozzle; 10321, jet micropore; 104, electric heating plate; 105, insulation sleeve; 106, L-shaped connecting pipe; 107, water injection pipe; 108, valve; 20, air stripping tower body; 201, top cover; 2011, liquid inlet pipe; 2012, plug hole; 2013 , exhaust hole; 202, air inlet pipe; 203, liquid discharge nozzle; 30, driving component; 301, motor; 302, driving gear; 40, rotary amine liquid spraying component; 401, insert; 4011, annular flange; 402, sleeve; 403, fixed plate; 404, annular rib; 405, liquid outlet plate; 4051, liquid outlet micropore; 406, anti-slip ring; 50, transmission component; 501, transmission gear; 60, transmission shaft; 70, packing assembly ;701, metal perforated plate corrugated structured packing plate;80, air suction piece;801, impeller;90, amine liquid storage box;901, amine liquid filling port;100, water pump;1001, first liquid extraction pipe;1002, first liquid injection pipe;110, sealing plug;120, exhaust pipe;130, impurity filter cartridge;1301, sleeve joint;1302, mounting plate;1303, air inlet plug joint;140, filter element;1401, filter plate;14011, Filter micropores; 150, self-rotating cleaning mechanism; 1501, wind wheel; 15011, rotating shaft; 1502, cleaning component; 15021, connecting plate; 15022, cleaning rod; 15023, transmission rod; 1503, annular bracket; 160, bushing; 170, temperature controller; 180, temperature sensing probe; 190, amine liquid regeneration tower; 200, drain pipe; 210, centrifugal pump; 220, second suction pipe; 230, second injection pipe. DETAILED DESCRIPTION
[0098] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0099] Embodiment 1
[0100] like Figure 1-20 As shown, the present invention provides a technical solution:
[0101] An amine stripping device based on high-efficiency filler, comprising:
[0102] The gas stripping tower body 20 has a top cover 201 on the top, an air inlet pipe 202 for allowing the raw natural gas to enter the lower part of the side wall at the bottom, and a liquid discharge nozzle 203 for convenient material discharge at one side of the bottom near the air inlet pipe 202;
[0103] The driving component 30 is composed of a main body and a driving end mounted on the main body. The driving component 30 is mounted on the top cover 201, and the main body of the driving component 30 is retained outside and the driving end is located at the upper part of the inner cavity of the gas stripping tower body 20;
[0104] The rotary amine liquid spraying component 40 is composed of a hollow support part and a rotary spraying part installed on the hollow support part. The rotary amine liquid spraying component 40 is installed on the top cover 201, and the top end of the hollow support part of the rotary amine liquid spraying component 40 extends outward, and the rotary spraying part is located at the upper part of the inner cavity of the gas stripping tower body 20;
[0105] The transmission component 50 is mounted on the lower end of the hollow support portion of the rotary amine liquid spraying component 40, and the transmission component 50 is located in the inner cavity of the gas stripping tower body 20 and is in transmission connection with the driving end of the driving component 30;
[0106] A transmission shaft 60 is installed in the inner cavity of the gas stripping tower body 20, the top end of the transmission shaft 60 is connected to the rotating spraying part of the rotating amine liquid spraying component 40, and the bottom end is connected to the heating mechanism 10;
[0107] a packing assembly 70 mounted on the transmission shaft 60;
[0108] an air suction member 80 mounted on the lower end of the transmission shaft 60; and
[0109] The amine liquid feeding mechanism is composed of an amine liquid storage part and a suction part installed on the amine liquid storage part, and one end of the suction part of the amine liquid feeding mechanism is connected to the hollow support part of the rotary amine liquid spraying component 40;
[0110] When the suction part of the amine liquid feeding mechanism can transport the amine liquid in the amine liquid storage part to the hollow support part of the rotary amine liquid spraying component 40, and transport the amine liquid to the rotating spraying part through the hollow support part, and spray the amine liquid into the inner cavity of the gas stripping tower body 20 through the rotating spraying part;
[0111] The main body of the driving component 30 can make the driving end rotate at high speed, and through the transmission cooperation with the transmission component 50, the rotating spraying part of the rotating amine liquid spraying component 40 can rotate at high speed, and the amine liquid can penetrate into the packing assembly 70 in a rotating spraying manner, and the amine liquid sprayed by the rotating spraying part of the rotating amine liquid spraying component 40 forms a rich liquid area above the inner cavity of the gas stripping tower body 20;
[0112] When the rotating spraying part of the rotating amine liquid spraying component 40 rotates, the transmission shaft 60 can rotate synchronously with the rotation of the rotating spraying part of the rotating amine liquid spraying component 40, and the stuffing assembly 70 and the suction member 80 can rotate synchronously with the rotation of the transmission shaft 60. Since the stuffing assembly 70 can rotate synchronously at a high speed through the rotation of the transmission shaft 60, the amine liquid infiltrated into the stuffing assembly 70 can be evenly distributed inside the stuffing assembly 70 under the high-speed rotation of the stuffing assembly 70.
[0113] Furthermore, an exhaust hole 2013 is opened at one side edge of the top cover 201 , and an exhaust pipe 120 is fixedly installed on the top cover 201 at a position corresponding to the exhaust hole 2013 , and the inner cavity of the exhaust pipe 120 is connected to the inner cavity of the gas lift tower body 20 .
[0114] In this embodiment, after CO 2 in the raw natural gas is effectively removed, the natural gas continues to move upward and is transmitted to the downstream link through the exhaust pipe 120 .
[0115] Embodiment 2
[0116] like Figure 1-20 As shown, based on the first embodiment, the following improvements are made:
[0117] The invention also comprises: a heating mechanism 10 which is installed at the bottom of the gas stripping tower body 20 .
[0118] The heating mechanism 10 is filled with water. When the heating mechanism 10 is working, the water inside it can be heated to vaporize the water inside to form water vapor. The water vapor can be emitted to the inner cavity of the gas stripping tower body 20 through the heating mechanism 10 and fill the inner cavity of the gas stripping tower body 20.
[0119] This embodiment can be used in conjunction with the first embodiment. Specifically, when the air suction member 80 rotates at a high speed, the bottom of the inner cavity of the air stripping tower body 20 forms an air inlet area, and the middle and upper parts of the inner cavity of the air stripping tower body 20 form an air outlet area (such as Fig.17 As shown), the water vapor generated by the heating mechanism 10 and the raw natural gas entering from the air inlet pipe 202 are attracted upward, and the water vapor and the raw natural gas can continuously pass through the packing assembly 70 when being attracted upward, and in the process of penetrating the packing assembly 70, the water vapor and the raw natural gas moving upward can continuously contact the amine liquid in the packing assembly 70 in countercurrent.
[0120] In this embodiment, when the water vapor is continuously attracted upward by the air inlet area and continuously passes through the packing assembly 70, the water vapor can evenly distribute the heat in the inner cavity of the gas stripping tower body 20 in the process of countercurrent upward flow;
[0121] When the raw natural gas is continuously attracted upward by the air inlet zone and continuously passes through the packing assembly 70, the raw natural gas can continuously penetrate the packing assembly 70 in the process of countercurrent upward flow. In the process of penetrating the packing assembly 70, not only the residence time of the raw natural gas in the gas lift tower body 20 is delayed, but also the raw natural gas can continuously come into countercurrent contact with the amine liquid permeated in the packing assembly 70. In the process of contact, the amine liquid reacts chemically with the CO2 in the raw natural gas, thereby effectively decarbonizing the raw natural gas.
[0122] At the same time, in the process of the raw natural gas penetrating the packing assembly 70 upward, since the packing assembly 70 rotates at a high speed, the raw natural gas can be more fully contacted with the amine liquid permeating in the packing assembly 70 during the rotation of the packing assembly 70, and the high-speed rotation of the packing assembly 70 can generate an upward vortex airflow in the inner cavity of the gas lift tower body 20. The raw natural gas passes through the packing assembly 70 in the form of a spiral motion in the inner cavity of the gas lift tower body 20 along with the vortex airflow. In this process, the residence time of the raw natural gas on the packing assembly 70 can be effectively delayed, so that the CO2 in the raw natural gas can fully contact and react with the amine liquid.
[0123] When the rising raw natural gas is in countercurrent contact with the amine liquid infiltrating the packing assembly 70, the amine liquid reacts with the CO2 in the raw natural gas, and the reaction product adheres to the surface of the packing assembly 70 and the penetration gap. When the rising water vapor contacts the inner wall of the gas stripping tower body 20 and the packing assembly 70, the water vapor will be liquefied to form water. When the liquefied water vapor contacts the packing assembly 70, the reaction product adhered to the surface of the packing assembly 70 and the penetration gap will dissolve in water and flow downward to the bottom of the inner cavity of the gas stripping tower body 20 to form a lean liquid area.
[0124] Since the packing assembly 70 is in a high-speed rotating state, the reaction products attached to the packing assembly 70 are separated from the packing assembly 70 due to the centrifugal force during the water dissolution process, thereby achieving the cleaning of the packing assembly 70;
[0125] Since the drain nozzle 203 corresponds to the bottom of the inner cavity of the gas lift tower body 20, the lean liquid in the lean liquid area can be transported to the amine liquid regeneration tower 190 through the drain nozzle 203, and the amine liquid can be effectively regenerated by the amine liquid regeneration tower 190, so that the lean liquid can be effectively recycled (this is described in detail in Example 10).
[0126] In order to optimize the specific structure of the heating mechanism 10, the researchers further provided that in this embodiment, the heating mechanism 10 includes a heating cylinder 101, wherein the inner cavity of the heating cylinder 101 is filled with water, and a cylinder cover 102 is fixedly installed at the top opening of the heating cylinder 101, wherein a water-containing chamber is formed between the heating cylinder 101 and the cylinder cover 102;
[0127] In order to optimize the structure of the gas stripping tower body 20, the researchers set the bottom of the gas stripping tower body 20 to be open or closed in a conventional manner. When the bottom of the gas stripping tower body 20 is open, the end surface of the top opening of the heating cylinder 101 is fixedly connected to the end surface of the bottom opening of the gas stripping tower body 20.
[0128] A plurality of one-way jet components 103 are circumferentially mounted on the edge of the cylinder cover 102, and the plurality of one-way jet components 103 can be located at the bottom of the inner cavity of the gas stripping tower body 20;
[0129] When the bottom of the gas stripping tower body 20 is in a closed state, the end surface of the top opening of the heating cylinder 101 is fixedly connected to the bottom of the gas stripping tower body 20, and the multiple one-way jet components 103 all penetrate the bottom of the gas stripping tower body 20 upward and extend into the inner cavity of the gas stripping tower body 20.
[0130] An electric heating plate 104 is fitted on the bottom of the heating cylinder 101. The electric heating plate 104 can heat the heating cylinder 101 after being powered on. When the heating cylinder 101 is heated, the water in the water chamber is continuously heated, and water vapor is formed under the action of heating. The water vapor can be continuously emitted upward through multiple one-way jet components 103. The water vapor emitted through the multiple one-way jet components 103 will enter the inner cavity of the gas lift tower body 20.
[0131] In order to be able to add water to the heating cylinder 101 at any time, the R&D personnel, in the present embodiment, further, a filling hole 1011 is opened on the upper part of the side wall of the heating cylinder 101, and a water injection pipe 107 is fixedly installed on the heating cylinder 101 and corresponding to the filling hole 1011. The top end of the water injection pipe 107 is inclined upward, and a valve 108 is installed on the water injection pipe 107, wherein the valve 108 is composed of a valve core and a valve stem, the valve core of the valve 108 is rotatably installed in the water injection pipe 107, and the valve stem of the valve 108 is rotatably installed on the outside of the water injection pipe 107.
[0132] By adjusting the valve stem of valve 108, the valve core of valve 108 can be opened or closed in the water injection pipe 107. When the valve core of valve 108 is opened, water can be added to the heating cylinder 101 through the water injection pipe 107. After the water is added, the valve stem of valve 108 is tightened to close the valve core of valve 108.
[0133] In order to avoid scalding of on-site operators, the R&D personnel, in the present embodiment, further, the heating mechanism 10 also includes a heat insulating sleeve 105, and the heat insulating sleeve 105 is sleeved and installed on the outer wall of the heating cylinder 101. After the heat insulating sleeve 105 is sleeved on the outer wall of the heating cylinder 101, it can effectively insulate and prevent scalding of on-site operators.
[0134] In order to keep track of the liquid level in the heating cylinder 101 at all times so as to replenish water into the heating cylinder 101 at any time, the researchers and developers further include an L-shaped connecting pipe 106 in this embodiment. The bottom end of the L-shaped connecting pipe 106 penetrates inward from the bottom of the side wall of the heating cylinder 101 and extends to the bottom of the inner cavity of the heating cylinder 101. The top end of the L-shaped connecting pipe 106 extends upward. The bottom end of the L-shaped connecting pipe 106 is open and the top end is closed. The whole is made of high temperature resistant and explosion-proof glass material. Therefore, it is transparent in appearance.
[0135] Since the L-shaped connecting tube 106 is connected to the bottom of the inner cavity of the heating cylinder 101 , the liquid level in the heating cylinder 101 can be known by observing the liquid level in the L-shaped connecting tube 106 .
[0136] Embodiment 3
[0137] like Figure 1-20 As shown, based on the second embodiment, the following improvements are made:
[0138] In order to optimize the specific structure of multiple one-way jet components 103, the researchers further, in this embodiment, each one-way jet component 103 includes a one-way valve 1031, each one-way valve 1031 is embedded at the edge of the cylinder cover 102, the bottom end of each one-way valve 1031 is connected to the inner cavity of the heating cylinder 101, the top end of each one-way valve 1031 is fixedly installed with an atomizing nozzle 1032, and the inner cavity of each atomizing nozzle 1032 is connected to the inner cavity of the one-way valve 1031;
[0139] Each atomizing nozzle 1032 has a plurality of air injection micro holes 10321 .
[0140] The flow direction of each one-way valve 1031 is from bottom to top, that is, the water vapor in the water containing chamber can pass upward through the one-way valve 1031 and be sprayed outward through a plurality of jet micropores 10321 in the atomizing nozzle 1032, and the spraying state is atomized, thereby effectively expanding the coverage area when the water vapor enters the inner cavity of the gas lift tower body 20.
[0141] Embodiment 4
[0142] like Figure 1-20As shown, based on the first embodiment, the following improvements are made:
[0143] In order to optimize the specific structures of the driving component 30, the rotary amine liquid spraying component 40 and the transmission component 50, and how the driving component 30, the rotary amine liquid spraying component 40 and the transmission component 50 cooperate with each other, the researchers further fixedly installed a liquid inlet pipe 2011 at the center of the upper surface of the top cover 201 in this embodiment, and the liquid inlet pipe 2011 is connected to the inner cavity of the gas stripping tower body 20;
[0144] The top cover 201 is provided with a plug hole 2012 on one side close to the liquid inlet pipe 2011;
[0145] The main body of the driving component 30 includes a motor 301, which is fixedly mounted on the top cover 201 and corresponds to the plug hole 2012, and the output shaft of the motor 301 passes downward through the plug hole 2012;
[0146] The driving end of the driving component 30 is a driving gear 302, and the driving gear 302 is fixedly mounted on the output shaft of the motor 301;
[0147] The hollow supporting part of the rotary amine liquid spraying component 40 includes a plug 401, which is inserted into the liquid inlet pipe 2011 and fixedly connected to the liquid inlet pipe 2011. The upper part of the plug 401 is also fixedly installed with an anti-slip ring 406 at the end surface corresponding to the liquid inlet pipe 2011;
[0148] The lower part of the cannula 401 is integrally formed with an annular flange 4011;
[0149] The rotary spraying part of the rotary amine liquid spraying component 40 includes a sleeve 402, which is sleeved and installed on the lower part of the insert pipe 401, and the bottom end surface of the sleeve 402 abuts against the annular flange 4011, and the sleeve 402 is rotatably connected to the insert pipe 401;
[0150] A fixed plate 403 is fixedly installed at the bottom of the sleeve 402, an annular rib 404 is fixedly installed at the lower edge of the fixed plate 403, a liquid outlet plate 405 is fixedly installed at the bottom end surface of the annular rib 404, and a plurality of liquid outlet micro-holes 4051 are opened on the liquid outlet plate 405;
[0151] Among them, an amine liquid spraying chamber is formed between the fixed plate 403, the annular retaining edge 404 and the liquid outlet plate 405, and the amine liquid in the amine liquid spraying chamber can be sprayed outward through a plurality of liquid outlet micropores 4051;
[0152] The transmission component 50 is a transmission gear 501, which is a more preferred form of the transmission component 50. The transmission gear 501 is fixedly mounted on the side wall of the sleeve 402, and the transmission gear 501 meshes with the driving gear 302. Through the meshing between the transmission gear 501 and the driving gear 302, when the motor 301 drives the driving gear 302 to rotate at a high speed through its output shaft, the driving gear 302 can drive the transmission gear 501 to rotate at a high speed. Under the high-speed rotation of the transmission gear 501, the sleeve 402 can be driven synchronously. When the sleeve 402 rotates at a high speed, the rotating spraying part of the rotary amine liquid spraying component 40 can rotate at a high speed, and then continuously spray the amine liquid in the form of high-speed rotation, so that a rich liquid area is quickly formed above the inner cavity of the gas lift tower body 20.
[0153] In order to enable the transmission gear 501 and the driving gear 302 to mesh with each other, the researchers and developers further configured the transmission gear 501 and the driving gear 302 to be located at the same horizontal plane in this embodiment.
[0154] Embodiment 5
[0155] like Figure 1-20 As shown, based on the second embodiment, the following improvements are made:
[0156] In order to realize that the transmission shaft 60 can rotate synchronously with the rotating spraying part of the rotary amine liquid spraying component 40, the research and development personnel further fixedly installed a shaft sleeve 160 at the center of the upper surface of the cylinder cover 102 in this embodiment;
[0157] The top end of the transmission shaft 60 is fixedly connected to the center of the lower surface of the liquid outlet plate 405, and the bottom end of the transmission shaft 60 is rotatably mounted in the shaft sleeve 160;
[0158] The packing assembly 70 is a plurality of metal perforated plate corrugated regular packing disks 701, and the plurality of metal perforated plate corrugated regular packing disks 701 are all fixedly mounted on the transmission shaft 60, and the plurality of metal perforated plate corrugated regular packing disks 701 are evenly distributed from top to bottom on the transmission shaft 60;
[0159] The side wall of each metal perforated plate corrugated structured packing disk 701 is in contact with the inner side wall of the gas stripping tower body 20, so that the raw natural gas moving upward can pass through the metal perforated plate corrugated structured packing disk 701 one by one, so that the raw natural gas is fully in contact with each metal perforated plate corrugated structured packing disk 701;
[0160] When the plurality of metal perforated plate corrugated structured packing disks 701 rotate, the side wall of each metal perforated plate corrugated structured packing disk 701 is slidably connected to the inner side wall of the gas stripping tower body 20;
[0161] Each metal perforated plate corrugated regular packing disk 701 has a number of penetration gaps, and the amine liquid sprayed downward can be retained in each penetration gap. When the upward moving raw natural gas passes through the metal perforated plate corrugated regular packing disk 701 one by one, it can continuously come into countercurrent contact with the amine liquid in the corresponding metal perforated plate corrugated regular packing disk 701. Each time it comes into contact, the amine liquid in the metal perforated plate corrugated regular packing disk 701 can chemically react with the CO2 in the raw natural gas. In the step-by-step reaction process, the CO2 in the raw natural gas can be continuously removed, so the decarbonization efficiency is higher.
[0162] Embodiment 6
[0163] like Figure 1-20 As shown, based on the first embodiment, the following improvements are made:
[0164] In order to optimize the specific structure of the air suction member 80, the researchers further configured the air suction member 80 to be an impeller 801 in the present embodiment. The impeller 801 is fixedly mounted on the lower portion of the transmission shaft 60. The impeller 801 is a more optimal form of the air suction member 80. When the transmission shaft 60 drives the multiple metal perforated plate corrugated structured packing disks 701 to rotate at high speed, the impeller 801 also rotates at high speed synchronously. When the impeller 801 rotates at high speed, an air inlet area is formed at the bottom of the inner cavity of the gas lift tower body 20, and an air outlet area is formed at the middle and upper portions of the inner cavity of the gas lift tower body 20. That is, the raw natural gas and water vapor entering from the bottom of the inner cavity of the gas lift tower body 20 can be attracted upward to improve the penetration efficiency of the raw natural gas and water vapor on the multiple metal perforated plate corrugated structured packing disks 701.
[0165] The penetration efficiency of the raw natural gas on the multiple metal perforated plate corrugated structured packing disks 701 is improved, which can improve the reaction efficiency of the amine liquid and CO2 in the raw natural gas;
[0166] The penetration efficiency of water vapor on the multiple metal perforated plate corrugated structured packing disks 701 is improved, so that the inner cavity of the gas stripping tower body 20 can be heated quickly and evenly.
[0167] Embodiment 7
[0168] like Figure 1-20 As shown, it is improved on the basis of the fourth embodiment:
[0169] In order to optimize the specific structure of the amine liquid feeding mechanism, the researchers further provided in this embodiment that the amine liquid storage part of the amine liquid feeding mechanism includes an amine liquid storage tank 90, and an amine liquid filling port 901 is provided on one side of the top of the amine liquid storage tank 90. The amine liquid filling port 901 is used to add amine liquid. A sealing plug 110 is inserted and installed in the amine liquid filling port 901. The sealing plug 110 is used to block the amine liquid filling port 901. When adding amine liquid, the sealing plug 110 can be pulled outwards.
[0170] The suction part of the amine liquid feeding mechanism includes a water pump 100, which is fixedly installed on the top side of the amine liquid storage tank 90. The water inlet end of the water pump 100 is connected to a first liquid extraction pipe 1001. The free end of the first liquid extraction pipe 1001 penetrates downward from the top of the amine liquid storage tank 90 and extends to the bottom of the inner cavity of the amine liquid storage tank 90. The water outlet end of the water pump 100 is connected to a first liquid injection pipe 1002. The free end of the first liquid injection pipe 1002 extends upward and is sleeved on the top of the insert tube 401. The water pump 100 can extract the amine liquid in the amine liquid storage tank 90 through the first liquid extraction pipe 1001 and inject it into the insert tube 401 through the first liquid injection pipe 1002.
[0171] Embodiment 8
[0172] like Figure 1-20 As shown, based on the second embodiment, the following improvements are made:
[0173] In order to be able to automatically control the heating temperature of the heating mechanism 10, the researchers and developers, in this embodiment, further, install a temperature control unit on the heating mechanism 10, through which the heating temperature of the heating mechanism 10 can be automatically controlled.
[0174] Embodiment 9
[0175] like Figure 1-20 As shown, based on the eighth embodiment, the following improvements are made:
[0176] In order to optimize the specific structure of the temperature control unit, the R&D personnel further, in this embodiment, the temperature control unit includes a temperature controller 170, and the temperature controller 170 is fixedly mounted on the side wall of the insulation sleeve 105;
[0177] The temperature control unit further includes a temperature sensing probe 180, which is embedded on the edge of the cylinder cover 102, and one end of the bottom of the temperature sensing probe 180 is located in the inner cavity of the heating cylinder 101;
[0178] The temperature sensing probe 180 is electrically connected to the temperature controller 170 via a wire;
[0179] The temperature controller 170 is electrically connected to the electric heating plate 104 through a wire, and the temperature controller 170 is electrically connected to the municipal power supply through a wire.
[0180] Embodiment 10
[0181] like Figure 1-20 As shown, based on the first embodiment, the following improvements are made:
[0182] In order to circulate the lean liquid and avoid the waste of the lean liquid, the researchers further provided an amine liquid regeneration tower 190 on one side of the gas stripping tower body 20 in this embodiment, and provided a centrifugal pump 210 on one side of the amine liquid regeneration tower 190;
[0183] A discharge pipe 200 is connected between the discharge nozzle 203 and the top feed port of the amine liquid regeneration tower 190, a second liquid extraction pipe 220 is connected between the bottom discharge port of the amine liquid regeneration tower 190 and the water inlet end of the centrifugal pump 210, and a second liquid injection pipe 230 is connected between the water outlet end of the centrifugal pump 210 and the amine liquid storage tank 90.
[0184] The lean liquid at the bottom of the inner cavity of the gas lift tower body 20 can enter the drain pipe 200 through the drain nozzle 203, and then enter the amine liquid regeneration tower 190 through the drain pipe 200. The lean liquid can be converted into new rich liquid through the amine liquid regeneration tower 190. The centrifugal pump 210 draws out the rich liquid in the amine liquid regeneration tower 190 through the second liquid extraction pipe 220, and transports it to the inner cavity of the amine liquid storage tank 90 through the second liquid injection pipe 230, thereby realizing the recycling of the amine liquid.
[0185] It should be noted that the amine liquid regeneration tower 190 uses a mature product in the prior art, and its product specifications and specific models are not specifically limited.
[0186] Embodiment 11
[0187] like Figure 1-20 As shown, based on the first embodiment, the following improvements are made:
[0188] Since the mined raw natural gas contains certain suspended solids, such as particulate matter formed by calcium and magnesium ions, in order to filter the particulate matter formed by calcium and magnesium ions, the R&D personnel, in this embodiment, further install an impurity filter cartridge 130 on the air intake pipe 202, and a filter element 140 is installed in the inner cavity of the impurity filter cartridge 130, and a self-rotating cleaning mechanism 150 capable of cleaning the filter element 140 is also installed in the inner cavity of the impurity filter cartridge 130, and the self-rotating cleaning mechanism 150 can rotate at high speed along with the flowing natural gas.
[0189] One end of the impurity filter cartridge 130 is connected to the air inlet pipe 202, and the other end is connected to the raw natural gas pipeline. The particulate matter formed by calcium and magnesium ions in the raw natural gas entering the impurity filter cartridge 130 can be filtered by the filter element 140, thereby improving the quality of the natural gas. At the same time, since the natural gas transported in the raw natural gas pipeline has a fast flow rate and a strong pressure, when the raw natural gas enters the impurity filter cartridge 130 through its gas pipeline, the high-pressure and high-flow raw natural gas will drive the high-speed rotation of the self-rotating cleaning mechanism 150. When the self-rotating cleaning mechanism 150 rotates at a high speed, it can continuously and repeatedly clean the filter element 140 to avoid clogging of the filter element 140.
[0190] Embodiment 12
[0191] like Figure 1-20 As shown, it is improved on the basis of Example 11:
[0192] In order to optimize the specific structure of the impurity filter cartridge 130, the researchers further provided in this embodiment that a sleeve joint 1301 is integrally formed on one side of the impurity filter cartridge 130, and a mounting plate 1302 is fastened and installed on the other side by bolts, and an air intake plug joint 1303 is integrally formed at the center of the outer wall of the mounting plate 1302, and the air intake plug joint 1303 is communicated with the inner cavity of the impurity filter cartridge 130;
[0193] Since the mounting plate 1302 is connected to the impurity filter cartridge 130 by bolts, the mounting plate 1302 can be easily installed or removed from the impurity filter cartridge 130;
[0194] The air inlet connector 1303 is connected to the natural gas pipeline;
[0195] The socket joint 1301 can be socketed and installed on the air intake pipe 202 .
[0196] Embodiment 13
[0197] like Figure 1-20 As shown, the improvement is made on the basis of the twelfth embodiment:
[0198] In order to optimize the specific structure of the filter element 140, the researchers further provide that in this embodiment, the filter element 140 is a filter disc 1401, which is fixedly mounted on the bottom of the inner cavity of the impurity filter cartridge 130 corresponding to the sleeve 1301, and a plurality of filter micropores 14011 are provided on the filter disc 1401;
[0199] The thickness of the filter disc 1401 is 2 mm to 5 mm, and the aperture of each filter micropore 14011 is 0.1 mm to 0.5 mm.
[0200] The filter disc 1401 is a preferred form of the filter element 140. Under the action of a plurality of filtering micropores 14011, particulate matter formed by calcium and magnesium ions can be intercepted, and the optimal thickness range of the filter disc 1401 is 2mm-5mm.
[0201] Embodiment 14
[0202] like Figure 1-20 As shown, it is improved on the basis of Example 13:
[0203] In order to optimize the specific structure of the self-rotating cleaning mechanism 150, the researchers further provided that in this embodiment, the self-rotating cleaning mechanism 150 includes a wind wheel 1501, which is installed in the inner cavity of the impurity filter cartridge 130. The self-rotating cleaning mechanism 150 is provided with a cleaning component 1502 on one side facing the filter disc 1401, and the cleaning component 1502 has a cleaning end.
[0204] The cleaning end of the cleaning component 1502 is attached to the side wall of the filter plate 1401;
[0205] The wind wheel 1501 can rotate synchronously with the flow of natural gas. When the wind wheel 1501 rotates, the cleaning component 1502 can also rotate synchronously, and the cleaning end of the cleaning component 1502 can be slidably connected to the inner wall of the filter disc 1401, so that the cleaning component 1502 can remove particulate matter attached to the side wall of the filter disc 1401 through its cleaning end to avoid clogging of the filter disc 1401.
[0206] Embodiment 15
[0207] like Figure 1-20 As shown, it is improved on the basis of Example 14:
[0208] In order to realize the installation and support of the wind wheel 1501 in the impurity filter cartridge 130, the researchers further provided a rotating shaft 15011 at both ends of the wind wheel 1501 in this embodiment, and an annular bracket 1503 was installed at both ends of the wind wheel 1501;
[0209] The inner rings of the two annular brackets 1503 are both sleeved and installed on the corresponding rotating shafts 15011 , and the outer rings of the two annular brackets 1503 are both fixedly installed on the inner wall of the impurity filtering cylinder 130 .
[0210] The wind wheel 1501 can be installed and supported in the inner cavity of the impurity filtering cylinder 130 under the action of the two annular brackets 1503 .
[0211] Embodiment 16
[0212] like Figure 1-20 As shown, it is improved on the basis of Example 14:
[0213] In order to optimize the specific structure of the cleaning component 1502, the researchers further provided that in this embodiment, the cleaning end of the cleaning component 1502 includes a connecting plate 15021, and a plurality of cleaning rods 15022 are fixedly mounted on the side wall of the connecting plate 15021, and the plurality of cleaning rods 15022 are equidistantly distributed in a circular manner on the side wall of the connecting plate 15021;
[0214] The cleaning component 1502 further includes a transmission rod 15023, one end of which is fixedly connected to the connection plate 15021 at the center of the side wall facing the wind wheel 1501, and the other end of which is fixedly connected to the end surface of the rotating shaft 15011 of the wind wheel 1501 facing the cleaning component 1502.
[0215] When the wind wheel 1501 rotates, the connecting plate 15021 and the transmission rod 15023 can rotate synchronously with the rotation of the wind wheel 1501, and the multiple cleaning rods 15022 can rotate synchronously with the rotation of the connecting plate 15021. When the multiple cleaning rods 15022 rotate, the calcium and magnesium particles adhered to the side wall of the filter plate 1401 can be cleaned.
[0216] In summary, the workflow of the present invention is:
[0217] like Figure 1-20 As shown, when the suction part of the amine liquid feeding mechanism can transport the amine liquid in the amine liquid storage part to the hollow support part of the rotary amine liquid spraying component 40, and transport the amine liquid to the rotating spraying part through the hollow support part, and spray the amine liquid into the inner cavity of the gas stripping tower body 20 through the rotating spraying part;
[0218] The main body of the driving component 30 can make the driving end rotate at high speed, and through the transmission cooperation with the transmission component 50, the rotating spraying part of the rotating amine liquid spraying component 40 can rotate at high speed, and the amine liquid can penetrate into the packing assembly 70 in a rotating spraying manner, and the amine liquid sprayed by the rotating spraying part of the rotating amine liquid spraying component 40 forms a rich liquid area above the inner cavity of the gas stripping tower body 20;
[0219] When the rotating spraying part of the rotating amine liquid spraying component 40 rotates, the transmission shaft 60 can rotate synchronously with the rotation of the rotating spraying part of the rotating amine liquid spraying component 40, and the packing assembly 70 and the air suction member 80 can rotate synchronously with the rotation of the transmission shaft 60. Since the packing assembly 70 can rotate synchronously at a high speed through the rotation of the transmission shaft 60, the amine liquid infiltrated in the packing assembly 70 can be evenly distributed inside the packing assembly 70 under the high-speed rotation of the packing assembly 70;
[0220] When the air suction member 80 rotates at a high speed, the bottom of the inner cavity of the air stripping tower body 20 forms an air inlet area, and the middle and upper parts of the inner cavity of the air stripping tower body 20 form an air outlet area (such as Fig.17 As shown), the water vapor generated by the heating mechanism 10 and the raw natural gas entering from the air inlet pipe 202 are attracted upward, and the water vapor and the raw natural gas can continuously pass through the packing assembly 70 when being attracted upward, and in the process of penetrating the packing assembly 70, the water vapor and the raw natural gas moving upward can continuously contact the amine liquid in the packing assembly 70 in countercurrent;
[0221] When the raw natural gas is continuously attracted upward by the air inlet zone and continuously passes through the packing assembly 70, the raw natural gas can continuously penetrate the packing assembly 70 in the process of countercurrent upward flow. In the process of penetrating the packing assembly 70, not only the residence time of the raw natural gas in the gas lift tower body 20 is delayed, but also the raw natural gas can continuously come into countercurrent contact with the amine liquid permeated in the packing assembly 70. In the process of contact, the amine liquid reacts chemically with the CO2 in the raw natural gas, thereby effectively decarbonizing the raw natural gas.
[0222] At the same time, in the process of the raw natural gas penetrating the packing assembly 70 upward, since the packing assembly 70 rotates at a high speed, the raw natural gas can be more fully contacted with the amine liquid permeating in the packing assembly 70 during the rotation of the packing assembly 70, and the high-speed rotation of the packing assembly 70 can generate an upward vortex airflow in the inner cavity of the gas lift tower body 20. The raw natural gas passes through the packing assembly 70 in the form of a spiral motion in the inner cavity of the gas lift tower body 20 along with the vortex airflow. In this process, the residence time of the raw natural gas on the packing assembly 70 can be effectively delayed, so that the CO2 in the raw natural gas can fully contact and react with the amine liquid.
[0223] When CO2 in the raw natural gas is effectively removed, the natural gas continues to move upward and is transmitted to the downstream link through the exhaust pipe 120.
[0224] Since the mined raw natural gas contains certain suspended solids, such as particulate matter formed by calcium and magnesium ions, in order to filter the particulate matter formed by calcium and magnesium ions, the researchers installed an impurity filter cartridge 130 on the air intake pipe 202. A filter element 140 is installed in the inner cavity of the impurity filter cartridge 130. A self-rotating cleaning mechanism 150 capable of cleaning the filter element 140 is also installed in the inner cavity of the impurity filter cartridge 130. The self-rotating cleaning mechanism 150 can rotate at high speed along with the flowing natural gas.
[0225] The particulate matter formed by the calcium and magnesium ions in the raw natural gas entering the impurity filter cartridge 130 can be filtered by the filter element 140. At the same time, since the natural gas transported in the raw natural gas pipeline has a fast flow rate and a strong pressure, when the raw natural gas enters the impurity filter cartridge 130 through its pipeline, the high-pressure and high-flow rate raw natural gas will drive the self-rotating cleaning mechanism 150 to rotate at a high speed. When the self-rotating cleaning mechanism 150 rotates at a high speed, it can continuously and repeatedly clean the filter element 140 to avoid clogging of the filter element 140.
[0226] The above different embodiments can be combined, replaced and used in conjunction with each other.
[0227] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0228] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. Amine stripping equipment based on high-efficiency filler, It is characterized in that include: A heating mechanism (10) comprising a heating cylinder (101), wherein a cylinder cover (102) is fixedly mounted at the top opening of the heating cylinder (101); A plurality of one-way jet components (103) are circularly mounted on the edge of the cylinder cover (102), and an electric heating plate (104) is fitted on the bottom of the heating cylinder (101); Each of the one-way jet components (103) comprises a one-way valve (1031), each of the one-way valves (1031) is embedded at the edge of the cylinder cover (102), one end of the bottom of each of the one-way valves (1031) is connected to the inner cavity of the heating cylinder (101), and one end of the top of each of the one-way valves (1031) is fixedly mounted with an atomizing nozzle (1032); Each of the atomizing nozzles (1032) has a plurality of jet microholes (10321); The heating mechanism (10) further comprises a heat insulating sleeve (105), wherein the heat insulating sleeve (105) is sleeved and mounted on the outer wall of the heating cylinder (101); The heating mechanism (10) further comprises an L-shaped connecting pipe (106), wherein a bottom end of the L-shaped connecting pipe (106) penetrates inwardly from the bottom of the side wall of the heating cylinder (101) and extends to the bottom of the inner cavity of the heating cylinder (101), and a top end of the L-shaped connecting pipe (106) extends upward; The heating mechanism (10) is also equipped with a temperature control unit; The temperature control unit comprises a temperature controller (170), and the temperature controller (170) is fixedly mounted on a side wall of the thermal insulation sleeve (105); The temperature control unit further comprises a temperature sensing probe (180), wherein the temperature sensing probe (180) is embedded on the edge of the cylinder cover (102), and a bottom end of the temperature sensing probe (180) is located in the inner cavity of the heating cylinder (101); A gas stripping tower body (20) having a top cover (201) on the top, an air inlet pipe (202) on the bottom side for allowing the raw natural gas to enter, and a liquid discharge nozzle (203) on the bottom side close to the air inlet pipe (202) for convenient material discharge; Wherein, the heating mechanism (10) is installed at the bottom of the gas stripping tower body (20); Wherein, a liquid inlet pipe (211) is fixedly mounted at the center of the upper surface of the top cover (201), and a plug hole (212) is provided on a side of the top cover (201) close to the liquid inlet pipe (2011); A driving component (30) consisting of a main body and a driving end mounted on the main body, wherein the driving component (30) is mounted on the top cover (201), and the main body of the driving component (30) is retained outside, and the driving end is located at the upper part of the inner cavity of the gas stripping tower body (20); The main body of the driving component (30) comprises a motor (301), the motor (301) being fixedly mounted on the top cover (201) and corresponding to the plug hole (2012), and the output shaft of the motor (301) passing downward through the plug hole (2012); The driving end of the driving component (30) is a driving gear (302), and the driving gear (302) is fixedly mounted on the output shaft of the motor (301); A rotary amine liquid spraying component (40) is composed of a hollow support portion and a rotary spraying portion mounted on the hollow support portion, wherein the rotary amine liquid spraying component (40) is mounted on the top cover (201), and the top end of the hollow support portion of the rotary amine liquid spraying component (40) extends outward, and the rotary spraying portion is located at the upper part of the inner cavity of the gas stripping tower body (20); The hollow supporting portion of the rotary amine liquid spraying component (40) comprises a plug (401), the plug (401) is inserted and installed in the liquid inlet pipe (2011) and is fixedly connected to the liquid inlet pipe (2011), and an anti-slip ring (406) is fixedly installed on the upper part of the plug (401) at the end surface corresponding to the liquid inlet pipe (2011); The lower part of the insertion tube (401) is integrally formed with an annular flange (4011); The rotary spraying part of the rotary amine liquid spraying component (40) comprises a sleeve (402), the sleeve (402) being sleeved and mounted on the lower part of the insert pipe (401), and the bottom end surface of the sleeve (402) being in contact with the annular flange (4011), and the sleeve (402) being rotatably connected to the insert pipe (401); A fixed plate (403) is fixedly mounted on the bottom of the sleeve (402); an annular rib (404) is fixedly mounted on the lower surface edge of the fixed plate (403); a liquid outlet plate (405) is fixedly mounted on the bottom end surface of the annular rib (404); and a plurality of liquid outlet microholes (4051) are formed on the liquid outlet plate (405); Wherein, an amine liquid spraying chamber is formed between the fixed plate (403), the annular retaining edge (404) and the liquid outlet plate (405); A transmission component (50) is mounted on the lower end of the hollow support portion of the rotary amine liquid spraying component (40), and the transmission component (50) is located in the inner cavity of the gas stripping tower body (20) and is in transmission connection with the driving end of the driving component (30); The transmission component (50) is a transmission gear (501), the transmission gear (501) is fixedly mounted on the side wall of the sleeve (402), and the transmission gear (501) is meshed with the driving gear (302); A transmission shaft (60) is installed in the inner cavity of the gas stripping tower body (20), the top end of the transmission shaft (60) is connected to the rotating spraying part of the rotating amine liquid spraying component (40), and the bottom end is connected to the heating mechanism (10); A packing assembly (70) mounted on the transmission shaft (60); The packing assembly (70) is a plurality of metal perforated plate corrugated structured packing disks (701), the plurality of metal perforated plate corrugated structured packing disks (701) are all fixedly mounted on the transmission shaft (60), and the plurality of metal perforated plate corrugated structured packing disks (701) are evenly spaced from top to bottom on the transmission shaft (60); The side wall of each of the metal perforated plate corrugated structured packing disks (701) is in contact with the inner side wall of the gas stripping tower body (20), and when the plurality of metal perforated plate corrugated structured packing disks (701) rotate, the side wall of each of the metal perforated plate corrugated structured packing disks (701) is slidably connected to the inner side wall of the gas stripping tower body (20); Each of the metal perforated plate corrugated structured packing disks (701) has a plurality of penetration gaps, and the amine liquid sprayed downward can be retained in each penetration gap; An air suction member (80) mounted on the lower end of the transmission shaft (60); The air suction member (80) is an impeller (801), and the impeller (801) is fixedly mounted on the lower part of the transmission shaft (60); An amine liquid feeding mechanism, which is composed of an amine liquid storage part and a suction part installed on the amine liquid storage part, wherein one end of the suction part of the amine liquid feeding mechanism is connected to the hollow supporting part of the rotary amine liquid spraying component (40); The main body of the driving component (30) can make the driving end rotate at a high speed, and through the transmission cooperation with the transmission component (50), the rotating spraying part of the rotating amine liquid spraying component (40) can rotate at a high speed, and the amine liquid can penetrate into the packing component (70) in a rotating spraying manner. When the rotating spraying part of the rotating amine liquid spraying component (40) rotates, the transmission shaft (60) can rotate synchronously with the rotation of the rotating spraying part of the rotating amine liquid spraying component (40), and the packing component (70) and the suction member (80) can rotate with the transmission shaft (60). ) rotate synchronously with the rotation of the air suction member (80), when the air suction member (80) rotates at a high speed, the bottom of the inner cavity of the air stripping tower body (20) forms an air inlet area, the middle and upper parts of the inner cavity of the air stripping tower body (20) form an air outlet area, and the water vapor generated by the heating mechanism (10) and the raw natural gas entering from the air inlet pipe (202) are sucked upward, and the water vapor and the raw natural gas can continuously pass through the packing components (70) when being sucked upward, and in the process of penetrating each packing component (70), the water vapor and the raw natural gas moving upward can continuously come into countercurrent contact with the amine liquid in the packing components (70); An impurity filter cartridge (130) mounted on the air intake pipe (202); A filter element (140) installed in the inner cavity of the impurity filter cartridge (130); and A self-rotating cleaning mechanism (150) capable of cleaning the filter element (140), which is installed in the inner cavity of the impurity filter cartridge (130), and the self-rotating cleaning mechanism (150) can rotate at high speed along with the flowing natural gas; When the self-rotating cleaning mechanism (150) rotates at a high speed, it can continuously and repeatedly clean the filter element (140); The filter element (140) is a filter disc (1401), and the filter disc (1401) is fixedly mounted on the bottom of the inner cavity of the impurity filter cartridge (130) corresponding to the sleeve joint (1301), and a plurality of filter micropores (14011) are formed on the filter disc (1401); The self-rotating cleaning mechanism (150) comprises a wind wheel (1501), the wind wheel (1501) being installed in the inner cavity of the impurity filter cartridge (130), and a cleaning component (1502) being installed on a side of the self-rotating cleaning mechanism (150) facing the filter disc (1401), the cleaning component (1502) having a cleaning end; The cleaning end of the cleaning component (1502) is attached to the side wall of the filter disc (1401); The wind wheel (1501) can rotate synchronously with the flow of natural gas, and when the wind wheel (1501) rotates, the cleaning component (1502) can also rotate synchronously, and the cleaning end of the cleaning component (1502) can be slidably connected to the inner wall of the filter plate (1401); The cleaning end of the cleaning component (1502) comprises a connecting disk (15021), and a plurality of cleaning rods (15022) are fixedly mounted on the side wall of the connecting disk (15021); The cleaning component (1502) further comprises a transmission rod (15023), one end of the transmission rod (15023) being fixedly connected to the connection plate (15021) at the center of a side wall on a side facing the wind wheel (1501), and the other end of the transmission rod (15023) being fixedly connected to the end surface of the rotating shaft (15011) on a side of the wind wheel (1501) facing the cleaning component (1502); When the wind wheel (1501) rotates, the connecting plate (15021) and the transmission rod (15023) can rotate synchronously with the rotation of the wind wheel (1501), and the plurality of cleaning rods (15022) can rotate synchronously with the rotation of the connecting plate (15021). When the plurality of cleaning rods (15022) rotate, calcium and magnesium particles adhering to the side wall of the filter plate (1401) can be cleaned.
2. An amine stripping device based on high-efficiency filler according to claim 1, It is characterized in that The end surface at the top opening of the heating cylinder (101) is fixedly connected to the end surface at the bottom opening of the gas stripping tower body (20); A filling hole (1011) is provided at the upper portion of the side wall of the heating cylinder (101); a water injection pipe (107) is fixedly mounted on the heating cylinder (101) at a position corresponding to the filling hole (1011); the top end of the water injection pipe (107) is inclined upward; a valve (108) is mounted on the water injection pipe (107); the valve (108) is composed of a valve core and a valve stem; the valve core of the valve (108) is rotatably mounted in the water injection pipe (107); and the valve stem of the valve (108) is rotatably mounted outside the water injection pipe (107); The inner cavity of each atomizing nozzle (1032) is in communication with the inner cavity of the one-way valve (1031).
3. An amine stripping device based on high-efficiency filler according to claim 2, Features: The liquid inlet pipe (211) is in communication with the inner cavity of the gas stripping tower body (20); The transmission gear (501) and the driving gear (302) are located on the same horizontal plane; An exhaust hole (2013) is provided at one side edge of the top cover (201), an exhaust pipe (120) is fixedly mounted on the top cover (201) at a location corresponding to the exhaust hole (2013), and an inner cavity of the exhaust pipe (120) is in communication with an inner cavity of the gas lift tower body (20).
4. A highly efficient filler-based amine stripping device according to claim 2, Features: A shaft sleeve (160) is fixedly mounted at the center of the upper surface of the cylinder cover (102); The top end of the transmission shaft (60) is fixedly connected to the center of the lower surface of the liquid outlet plate (405), and the bottom end of the transmission shaft (60) is rotatably mounted in the shaft sleeve (160).
5. An amine stripping device based on high-efficiency filler according to claim 3, Features: The amine liquid storage part of the amine liquid feeding mechanism comprises an amine liquid storage box (90), a top side of the amine liquid storage box (90) is provided with an amine liquid filling port (901), and a sealing plug (110) is inserted and installed in the amine liquid filling port (901); The suction part of the amine liquid feeding mechanism comprises a water pump (100), the water pump (100) is fixedly mounted on one side of the top of the amine liquid storage tank (90), the water inlet end of the water pump (100) is connected to a first liquid extraction pipe (1001), the free end of the first liquid extraction pipe (1001) passes downward from the top of the amine liquid storage tank (90) and extends to the bottom of the inner cavity of the amine liquid storage tank (90), and the water outlet end of the water pump (100) is connected to a first liquid injection pipe (1002), the free end of the first liquid injection pipe (1002) extends upward and is sleeved and mounted on the top of the insertion pipe (401).
6. An amine stripping device based on high-efficiency filler according to claim 2, Features: The temperature sensing probe (180) is electrically connected to the temperature controller (170) via a wire; The temperature controller (170) is electrically connected to the electric heating plate (104) via a wire, and the temperature controller (170) is electrically connected to a municipal power supply via a wire.
7. The amine stripping equipment based on high-efficiency filler according to claim 1, Features: One end of the impurity filter cartridge (130) is connected to the air inlet pipe (202), and the other end is connected to the raw natural gas transmission pipe; A sleeve joint (1301) is integrally formed on one side of the impurity filter cartridge (130), and a mounting plate (1302) is fastened with bolts on the other side; an air intake plug joint (1303) is integrally formed at the center of the outer wall of the mounting plate (1302), and the air intake plug joint (1303) is in communication with the inner cavity of the impurity filter cartridge (130); The air inlet plug connector (1303) is connected to the natural gas transmission pipe; The sleeve joint (1301) can be sleeved and installed on the air intake pipe (202).
8. An amine stripping device based on high-efficiency filler according to claim 7, Features: The thickness of the filter disc (1401) is 2 mm to 5 mm, and the aperture of each of the filter micropores (14011) is 0.1 mm to 0.5 mm; The filter disc (1401) has a thickness of 2 mm to 5 mm.
9. An amine stripping device based on a high-efficiency filler according to claim 8, Features: Both ends of the wind wheel (1501) are provided with a rotating shaft (15011), and both ends of the wind wheel (1501) are provided with an annular bracket (1503); The inner rings of the two annular supports (1503) are both sleeved and mounted on the corresponding rotating shafts (15011), and the outer rings of the two annular supports (1503) are both fixedly mounted on the inner wall of the impurity filtering cylinder (130).
10. An amine stripping device based on a high-efficiency filler according to claim 9, Features: The plurality of cleaning rods (15022) are equidistantly distributed in a circular pattern on the side wall of the connecting disk (15021).
