An ultrasonic-microwave synergistic desorption system and method for a natural gas decarbonization column

Abstract

The present disclosure relates to the technical field of natural gas decarburization, and one embodiment of the present disclosure provides an ultrasonic-microwave synergistic desorption system and method for a natural gas decarburization tower, which comprises a tank body with a reaction cavity, and an ultrasonic assembly and a microwave assembly arranged on the tank body; further comprising a suspension frame which is arranged in the reaction cavity of the tank body in vertical sliding mode, the suspension frame having a plurality of first openings which are uniformly distributed on the lateral side of the suspension frame, and a condensation plate which is arranged on the suspension frame in vertical sliding mode, the condensation plate having a second opening which is located in the middle part of the condensation plate. Through the above technical solution, the technical problem that the absorption agent or moisture may exist in the gas in the desorption process in the prior art and cannot be effectively separated is solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of natural gas decarbonization, in particular, to an ultrasonic-microwave collaborative desorption system and method for a natural gas decarbonization tower. BACKGROUND

[0002] During the process of natural gas mining and processing, a certain amount of carbon dioxide (CO2) is usually contained. Excessive CO2 will reduce the calorific value of natural gas, cause pipeline corrosion, and affect the quality and safety of natural gas transportation. Therefore, it is necessary to carry out decarbonization treatment on natural gas. At present, the commonly used method for natural gas decarbonization is to use chemical absorption method to absorb CO2 in natural gas by using absorbent. At this time, the absorbent saturated with CO2 is called rich liquid, and then CO2 is released from the rich liquid through a desorption process to realize the regeneration and recycling of the absorbent.

[0003] However, the traditional desorption method has some problems. In the ultrasonic-microwave collaborative desorption process, the rich liquid will fluctuate and the temperature will rise, so that the CO2 in the rich liquid can be fully desorbed. Then, because the temperature is relatively high, there will be a large amount of absorbent or water in the gas, thereby wasting the absorbent and making it inconvenient for subsequent separation of CO2 and natural gas. Therefore, it is of great practical significance to develop an efficient and energy-saving desorption system and method for a natural gas decarbonization tower. SUMMARY

[0004] To overcome the above-mentioned defects, embodiments of the present disclosure provide an ultrasonic-microwave collaborative desorption system and method for a natural gas decarbonization tower, which solves the technical problem that in the desorption process of the prior art, because the temperature rises and the liquid fluctuates, there will be absorbent or water in the gas, which cannot be effectively separated.

[0005] According to one aspect, at least one embodiment of the present disclosure provides an ultrasonic-microwave collaborative desorption system for a natural gas decarbonization tower, comprising a tank body with a reaction cavity, and an ultrasonic assembly and a microwave assembly arranged on the tank body; further comprising a suspension frame, the suspension frame is vertically slidingly arranged in the reaction cavity of the tank body, the suspension frame has a plurality of first openings, the plurality of first openings are uniformly distributed on the lateral side of the suspension frame, the suspension frame further has a plurality of blocking parts, a condensation plate is vertically slidingly arranged on the suspension frame, the condensation plate has a second opening, the second opening is located in the middle of the condensation plate, and the plurality of blocking parts respectively extend into the plurality of second openings one by one, and the condensation plate vertically slides to drive the blocking parts to separate from the second opening.

[0006] As a further technical feature, it further comprises an elastic member arranged at the bottom of the suspension frame, the buffer plate is connected with the elastic member, the buffer plate is arranged in the tank body in vertical sliding mode, and the buffer plate moves with the suspension frame.

[0007] As a further technical feature, it further comprises a traction rope, one end of the traction rope is connected with the inner wall of the first opening, the floating ball member is located inside the first opening, and the other end of the traction rope in the first opening is connected with the floating ball member.

[0008] As a further technical feature, the suspension frame further has a plurality of guide grooves arranged along the sliding direction of the condensing plate, and the condensing plate further has a plurality of guide portions which are correspondingly arranged in the plurality of guide grooves.

[0009] As a further technical feature, it further comprises an elastic sleeve arranged at the end of the guide portion, and the elastic sleeve is used to prevent the guide portion from being separated from the guide groove.

[0010] As a further technical feature, the ultrasonic assembly comprises a mounting seat arranged on the tank body, the mounting seat is arranged along the side of the tank body, the ultrasonic transducer has a plurality of ultrasonic transducers, the plurality of ultrasonic transducers are uniformly arranged on the mounting seat, and the working end of the ultrasonic transducer is in contact with the tank body.

[0011] As a further technical feature, the microwave assembly comprises a microwave generator arranged at the bottom of the tank body, and the control console is electrically connected with the microwave generator and the ultrasonic transducer.

[0012] As a further technical feature, the tank body further has a liquid inlet, a liquid outlet and a gas outlet, the liquid inlet, the liquid outlet and the gas outlet are all in communication with the reaction cavity, the liquid inlet and the liquid outlet are both located at the bottom of the tank body, and the gas outlet is located at the top of the tank body.

[0013] As a further technical feature, it further comprises a control assembly arranged on the tank body, the control assembly comprises a temperature sensor arranged on the tank body, the working end of the temperature sensor is in contact with the reaction cavity, a pressure sensor is arranged on the tank body, the working end of the pressure sensor is in contact with the reaction cavity, and the temperature sensor and the pressure sensor are both electrically connected with the control console.

[0014] An ultrasonic-microwave synergistic desorption method for a natural gas decarbonization tower, using an ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower, comprising,

[0015] S1: Turn on the ultrasonic transducer and the microwave generator, and control the temperature of the reaction cavity of the tank body to rise to 80-120 DEG C through the console;

[0016] S2: When the temperature in the reaction cavity of the tank body reaches the set value, send the rich liquid that has absorbed CO2 from the liquid inlet into the reaction cavity of the tank body;

[0017] S3: The mixed gas of desorbed CO2 and natural gas is discharged from the gas outlet at the top of the tank body for subsequent treatment, the ultrasonic transducer is continuously controlled to be turned off, and the microwave generator is slowly controlled to be turned off, and the lean liquid after desorption is sent out from the liquid outlet for recycling.

[0018] The embodiments of the present disclosure have the following beneficial effects:

[0019] In the present disclosure, the suspension frame and the condensing plate vertically moving on the suspension frame are provided. In the conventional setting, the condensing plate is generally fixedly arranged in the reaction cavity, and with the change of the liquid level, the function of the condensing plate cannot be fully used. For example, when the liquid level is too high, the distance between the liquid surface and the condensing plate is short, and after the gas is desorbed from the liquid, most of the gas will be directly sent out through the condensing plate, the condensing time is short, and the condensing effect is poor. When the liquid level is too low, the distance between the liquid surface and the condensing plate is long, although the movement distance of the gas is lengthened, the gas pressure between the liquid surface and the condensing plate is low, and the condensing effect of the water and the absorbent in the gas will be poor. Therefore, by arranging the suspension frame and the condensing plate vertically moving on the suspension frame, the distance between the suspension frame and the condensing plate can be changed, that is, the distance between the condensing plate and the liquid surface can be changed. Because of the arrangement of the blocking part, when the gas reaches a certain pressure, the blocking part moves upward, and the gas can be sent out through the condensing plate after the blocking part is separated from the second opening. After the rich liquid enters the reaction cavity, the suspension frame can slide vertically according to the change of the liquid level of the rich liquid, and the suspension frame moves along the vertical direction with the condensing plate. The condensing plate vertically slides on the suspension frame, and the distance between the condensing plate and the rich liquid surface can be adjusted. When a certain pressure is reached, the gas can be fully condensed on the condensing plate under a certain pressure, and can be smoothly discharged from above the tank body. The arrangement of the suspension frame and the condensing plate makes the gas-liquid distribution in the desorption process more reasonable, which helps to improve the desorption efficiency, reduce the loss of the absorbent and water with the gas, and reduce the subsequent treatment cost.

[0020] Further, the present disclosure discloses a desorption method. By sequentially turning on and off the ultrasonic transducer and the microwave generator, the temperature of the reaction cavity is accurately controlled, and the feeding of rich liquid and the discharging of lean liquid are reasonably controlled. The ultrasonic-microwave synergistic effect is used to promote the desorption of CO2 in the rich liquid, and finally the efficient decarburization of natural gas is realized. At the same time, the key parameters are monitored in real time by temperature sensors and pressure sensors, so that the desorption process can be carried out in a safe and stable condition. The ultrasonic-microwave synergistic desorption method combines the advantages of ultrasonic and microwave, and through precise step control and parameter adjustment, it realizes an efficient and energy-saving natural gas decarburization process. Not only the desorption efficiency of CO2 is improved and the energy consumption is reduced, but also the quality of the lean liquid and the convenience of subsequent processing are guaranteed, and the economic benefit and environmental benefit of the entire natural gas decarburization process are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0022] Figure 1 FIG. 1 is a schematic diagram of the shaft side structure of an ultrasonic-microwave synergistic desorption system for a natural gas decarburization tower in an embodiment of the present disclosure;

[0023] Figure 2 FIG. 2 is a schematic diagram of the internal structure of the ultrasonic-microwave synergistic desorption system for the natural gas decarburization tower in the embodiment of the present disclosure; Figure 1

[0024] Figure 3 FIG. 3 is a schematic diagram of the combination structure of the suspension frame and the condensing plate in the embodiment of the present disclosure; Figure 1

[0025] Figure 4 FIG. 4 is a schematic diagram of the structure of the condensing plate in the embodiment of the present disclosure; Figure 3

[0026] Figure 5 FIG. 5 is a schematic diagram of the structure of the suspension frame in the embodiment of the present disclosure; Figure 3

[0027] ​​​​In the figure: 1, tank body; 101, reaction cavity; 102, liquid inlet; 103, liquid outlet; 104, gas outlet; 2, ultrasonic assembly; 3, microwave assembly; 4, suspension frame; 401, first opening; 402, plugging part; 403, guide groove; 5, condensation plate; 501, second opening; 502, guide part; 6, traction rope body; 7, floating ball part; 8, elastic sleeve body; 201, mounting seat; 202, ultrasonic transducer; 301, microwave generator; 302, control console; 9, control assembly; 901, temperature sensor; 902, pressure sensor; 10, elastic part; 11, buffer plate. DETAILED DESCRIPTION

[0028] The present disclosure will be further described in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0029] In order to make the drawing simple, only the parts related to the disclosure are shown in each drawing, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some drawings, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0030] In this paper, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0031] In the present disclosure, unless otherwise specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] like Figures 1-5 The diagram illustrates an ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to an embodiment of this disclosure. It includes a tank 1 with a reaction chamber 101 and an ultrasonic component 2 and a microwave component 3 disposed on the tank 1. It also includes a suspension frame 4, which is vertically slidably disposed within the reaction chamber 101 of the tank 1. The suspension frame 4 has a plurality of first openings 401 evenly distributed around its periphery. The suspension frame 4 also has a plurality of sealing portions 402. A condensing plate 5 is vertically slidably disposed on the suspension frame 4, and the condensing plate 5 has a second opening 501 located in the center of the condensing plate 5. A plurality of sealing portions 402 extend one-to-one into the plurality of second openings 501. The vertical sliding of the condensing plate 5 drives the sealing portions 402 to disengage from the second openings 501.

[0035] In this embodiment, a suspension frame 4 and a condenser plate 5 that moves vertically on the suspension frame 4 are provided. In conventional settings, the condenser plate 5 is generally fixedly installed inside the reaction chamber 101. However, as the liquid level changes, the function of the condenser plate 5 cannot be fully utilized. For example, when the liquid level is too high, the distance between the liquid surface and the condenser plate 5 is short. After the gas is desorbed from the liquid, most of the gas will be directly sent out through the condenser plate 5, resulting in a short condensation time and poor condensation effect. Conversely, when the liquid level is too low, the distance between the liquid surface and the condenser plate 5 is long. Although the gas travels a longer distance, the gas pressure between the liquid surface and the condenser plate 5 is low. The condensation effect of water and absorbent in the gas will be worse. Therefore, a suspension frame 4 is set up and the condensing plate 5 is moved vertically on the suspension frame 4. This allows the distance between the suspension frame 4 and the condensing plate 5 to be varied, that is, the distance between the condensing plate 5 and the liquid surface to be varied. The sealing part 402 is set up so that the gas can reach a certain pressure. After the sealing part 402 moves upward and disengages from the second opening 501, the gas can be sent out through the condensing plate 5. After the rich liquid enters the reaction chamber 101, the suspension frame 4 can slide vertically according to the change of the liquid level of the rich liquid. The suspension frame 4 carries the condensing plate 5 and moves in the vertical direction.

[0036] The condensing plate 5 vertically slides on the suspension frame 4, and the distance between the condensing plate 5 and the liquid surface can be adjusted. When a certain pressure is reached, the gas can be separated from the space between the condensing plate 5 and the suspension frame 4, so that the gas can be fully condensed on the condensing plate 5 under a certain pressure and smoothly discharged from above the tank 1. During the pressure increase between the condensing plate 5 and the suspension frame 4, the absorbent or moisture in the gas can be fully condensed, so as to be accumulated on the condensing plate 5 and not be sent out with the gas finally, thereby effectively separating the absorbent and moisture in the gas from the gas and reducing the difficulty of subsequent treatment of the gas. The arrangement of the suspension frame 4 and the condensing plate 5 makes the gas-liquid distribution in the desorption process more reasonable, which helps to improve the desorption efficiency, reduce the absorbent and moisture carried out with the gas, and reduce the subsequent processing cost.

[0037] Further, the elastic member 10 is arranged at the bottom of the suspension frame 4, the buffer plate 11 is connected with the elastic member 10, the buffer plate 11 is vertically arranged in the tank 1, and the buffer plate 11 moves with the suspension frame 4.

[0038] In the embodiment, under the synergistic effect of ultrasonic waves and microwaves, although the desorption effect is better, the liquid fluctuation and desorption bubbles are more violent, so the liquid fluctuation and bubbles will affect the suspension frame 4, so that the suspension frame 4 appears a certain up-down fluctuation, thereby affecting the distance between the suspension frame 4 and the condensing plate 5, and affecting the gas pressure between the suspension frame 4 and the condensing plate 5, resulting in unstable gas discharge. Therefore, the buffer plate 11 and the elastic member 10 are arranged to reduce the influence of the liquid or bubbles on the suspension frame 4. The liquid acts on the buffer plate 11, so that the buffer plate 11 moves up and down to replace the displacement of the suspension frame 4, and the elastic member 10 can reset the buffer plate 11 to reduce the influence on the suspension frame 4. The elastic member 10 can be some elastic colloid or spring with small elastic coefficient.

[0039] Further, the traction rope 6 is arranged, one end of the traction rope 6 is connected with the inner wall of the first opening 401, the floating ball 7 is located in the first opening 401, and the other end of the traction rope 6 in the first opening 401 is connected with the floating ball 7.

[0040] In the embodiment, the change of the liquid level of the rich liquid drives the floating ball 7 to float up and down in the first opening 401, and the traction rope 6 is tightened or relaxed accordingly to reflect the change of the liquid level of the rich liquid. The arrangement of the floating ball 7 and the traction rope 6 provides a simple and effective way for the liquid level monitoring of the rich liquid, and ensures the normal operation of the desorption process.

[0041] Further, the suspension frame 4 is also provided with a plurality of guide grooves 403 arranged along the sliding direction of the condensing plate 5, and the condensing plate 5 is also provided with a plurality of guide portions 502 which are correspondingly arranged in the guide grooves 403.

[0042] In the embodiment, the condensing plate 5 is vertically moved by sliding the guide portions 502 in the guide grooves 403, the guide grooves 403 guide and limit the guide portions 502, which ensures the stability and accuracy of the sliding of the condensing plate 5, and the condensing plate 5 will not move out of the suspension frame 4, the arrangement of the guide grooves 403 and the guide portions 502 improves the stability and accuracy of the sliding of the condensing plate 5, which helps to optimize the gas condensation and flow control in the desorption process and improve the overall performance of the desorption system.

[0043] Further, the embodiment also comprises an elastic sleeve 8 arranged at the end of the guide portion 502, which is used to prevent the guide portion 502 from moving out of the guide groove 403.

[0044] In the embodiment, the elastic sleeve 8 is tightly sleeved at the end of the guide portion 502 by the friction and elasticity generated by the interference fit, which prevents the guide portion 502 from moving out of the guide groove 403, ensures the sliding of the guide portion 502, and improves the reliability of the connection. The arrangement of the elastic sleeve 8 enhances the stability of the connection between the condensing plate 5 and the suspension frame 4, and when the pressure between the condensing plate 5 and the suspension frame 4 is too large, the guide groove 403 acts on the elastic sleeve 8, so that the elastic sleeve 8 moves upward from the condensing plate 5 to reduce the air pressure between the condensing plate 5 and the suspension frame 4, preventing safety problems. The elastic sleeve 8 can be made of rubber or other materials with elastic deformation, and a certain sealing structure will be arranged between the condensing plate 5 and the suspension frame 4 and the tank 1, so as to keep the air pressure between the condensing plate 5 and the suspension frame 4 stable.

[0045] Further, the ultrasonic assembly 2 comprises a mounting seat 201 arranged on the tank 1, the mounting seat 201 is arranged along the side of the tank 1, and the ultrasonic transducer 202 has a plurality of ultrasonic transducers 202 uniformly arranged on the mounting seat 201, and the working end of the ultrasonic transducer 202 is in contact with the tank 1.

[0046] In the embodiment, the ultrasonic transducer 202 converts electrical energy into ultrasonic energy, which is transmitted to the rich liquid through the tank 1, and the cavitation effect and mechanical effect of ultrasonic are used to promote the desorption of CO2. The arrangement of the ultrasonic assembly 2 improves the desorption efficiency of CO2, and the arrangement of the mounting seat 201 enhances the flexibility and stability of ultrasonic desorption, and reduces the damage to the tank 1.

[0047] Further, the microwave assembly 3 comprises a microwave generator 301, which is arranged at the bottom of the tank body 1, and the control console 302 is electrically connected with the microwave generator 301 and the ultrasonic transducer 202.

[0048] In this embodiment, the microwave generator 301 generates microwave radiation rich liquid to promote desorption. The control console 302 collects data of the temperature sensor 901, the pressure sensor 902, etc., and adjusts the working parameters of the microwave generator 301 and the ultrasonic transducer 202 according to a preset algorithm, so as to realize intelligent control of the desorption process. The cooperation of the microwave assembly 3 and the control console 302 realizes intelligent control of ultrasonic-microwave synergistic desorption, improves the desorption efficiency, and enhances the safety and convenience of system operation.

[0049] Further, the tank body 1 further has a liquid inlet 102, a liquid outlet 103 and a gas outlet 104, which are all in communication with the reaction cavity 101. The liquid inlet 102 and the liquid outlet 103 are both located at the bottom of the tank body 1, and the gas outlet 104 is located at the top of the tank body 1.

[0050] In this embodiment, the rich liquid enters the reaction cavity 101 from the liquid inlet 102 under the action of the pump, and after desorption, the lean liquid flows out from the liquid outlet 103, and the mixed gas desorbed is discharged from the gas outlet 104, realizing continuous production of natural gas decarburization. The reasonable arrangement of the liquid inlet 102, the liquid outlet 103 and the gas outlet 104 ensures the smooth flow and treatment of the material in the natural gas decarburization desorption process.

[0051] Further, it further comprises a control assembly 9 arranged on the tank body 1. The control assembly 9 comprises a temperature sensor 901 arranged on the tank body 1, and the working end of the temperature sensor 901 is in contact with the reaction cavity 101. The control assembly 9 further comprises a pressure sensor 902 arranged on the tank body 1, and the working end of the pressure sensor 902 is in contact with the reaction cavity 101. The temperature sensor 901 and the pressure sensor 902 are both electrically connected with the control console 302.

[0052] In this embodiment, the temperature sensor 901 and the pressure sensor 902 collect the temperature and pressure data in the reaction cavity 101 in real time and transmit these data to the console 302. The control software in the console 302 analyzes and processes the data, automatically adjusts the working strength of the ultrasonic transducer 202, the output power of the microwave generator 301 and other parameters according to the preset temperature and pressure range, and maintains the stable progress of the desorption process. The setting of the control assembly 9 realizes the real-time monitoring and automatic control of the key parameters in the desorption process, improves the stability and safety of the desorption process, avoids the adverse effects of abnormal temperature or pressure on the desorption effect and equipment, and helps to improve the operation efficiency and reliability of the entire natural gas decarburization tower desorption system.

[0053] An ultrasonic-microwave synergistic desorption method for a natural gas decarburization tower, using an ultrasonic-microwave synergistic desorption system for a natural gas decarburization tower, comprising,

[0054] First step: turn on the ultrasonic transducer and the microwave generator, and control the temperature of the reaction cavity of the tank body to rise to 80-120℃ through the console;

[0055] Second step: when the temperature in the reaction cavity of the tank body reaches the set value, send the CO2-absorbed rich liquid from the liquid inlet into the reaction cavity of the tank body;

[0056] Third step: discharge the mixed gas of desorbed CO2 and natural gas from the gas outlet at the top of the tank body for subsequent treatment, continue to control the ultrasonic transducer to be turned off and the microwave generator to be slowly turned off through the console, and send the lean liquid after desorption of the gas from the liquid outlet for recycling.

[0057] In this method, by orderly turning on and off the ultrasonic transducer 202 and the microwave generator 301, the temperature of the reaction cavity 101 is accurately controlled, and the feeding of the rich liquid and the discharging of the lean liquid are reasonably controlled, the ultrasonic-microwave synergistic effect is used to promote the desorption of CO2 in the rich liquid, and finally the efficient decarburization of natural gas is realized. At the same time, rely on the real-time monitoring of key parameters by temperature sensor 901 and pressure sensor 902 to ensure that the desorption process is carried out in a safe and stable condition. This ultrasonic-microwave synergistic desorption method combines the advantages of ultrasonic and microwave, through precise step control and parameter adjustment, realizes the efficient and energy-saving natural gas decarburization process. Not only improves the desorption efficiency of CO2 and reduces energy consumption, but also ensures the quality of the lean liquid and the convenience of subsequent treatment, improves the economic and environmental benefits of the entire natural gas decarburization process.

[0058] It should be noted that the above examples are only used to illustrate the technical solutions of the present disclosure rather than limit the present disclosure. Although the present disclosure is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and all should be covered in the scope of the claims of the present disclosure.

Claims

1. An ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower, characterized in that, It includes a tank (1) having a reaction chamber (101) and an ultrasonic component (2) and a microwave component (3) disposed on the tank (1); include, The suspension frame (4) is vertically slidably disposed in the reaction chamber (101) of the tank body (1). The suspension frame (4) has a plurality of first openings (401), which are evenly distributed around the suspension frame (4). The suspension frame (4) also has a plurality of sealing parts (402). A condenser plate (5) is vertically slidably mounted on the suspension frame (4). The condenser plate (5) has a second opening (501) located in the middle of the condenser plate (5). A plurality of sealing parts (402) extend into the plurality of second openings (501) respectively. The condenser plate (5) slides vertically to drive the sealing parts (402) to disengage from the second openings (501). After the rich liquid enters the reaction chamber, the suspension frame slides vertically according to the change in the liquid level of the rich liquid, and the suspension frame moves vertically along with the condenser plate; the condenser plate slides vertically on the suspension frame to adjust its distance from the surface of the rich liquid.

2. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 1, characterized in that, It also includes, An elastic element (10) is placed at the bottom of the suspension frame (4). The buffer plate (11) is connected to the elastic element (10). The buffer plate (11) is slidably disposed in the tank (1) along the vertical direction. The buffer plate (11) moves with the suspension frame (4).

3. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 2, characterized in that, It also includes, A traction rope (6), one end of which is connected to the inner wall of the first opening (401). A float (7) is located inside the first opening (401) and is connected to the other end of the traction rope (6) inside the first opening (401).

4. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 3, characterized in that, The suspension frame (4) also has a plurality of guide grooves (403), which are arranged along the sliding direction of the condenser plate (5). The condenser plate (5) also has a plurality of guide parts (502), which extend into the plurality of guide grooves (403) one by one.

5. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 4, characterized in that, It also includes an elastic sleeve (8), which is disposed at the end of the guide portion (502) and is used to prevent the guide portion (502) from disengaging from the guide groove (403).

6. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 1, characterized in that, The ultrasound component (2) includes, Mounting base (201), the mounting base (201) is disposed on the tank body (1), the mounting base (201) is disposed along the periphery of the tank body (1), An ultrasonic transducer (202) is provided. Several ultrasonic transducers (202) are evenly arranged on the mounting base (201). The working end of the ultrasonic transducer (202) is in contact with the tank body (1).

7. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 6, characterized in that, The microwave component (3) includes, A microwave generator (301) is disposed at the bottom of the tank (1). The control console (302) is electrically connected to both the microwave generator (301) and the ultrasonic transducer (202).

8. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 1, characterized in that, The tank (1) also has a liquid inlet (102), a liquid outlet (103) and a gas outlet (104). The liquid inlet (102), the liquid outlet (103) and the gas outlet (104) are all connected to the reaction chamber (101). The liquid inlet (102) and the liquid outlet (103) are both located at the bottom of the tank (1), and the gas outlet (104) is located at the top of the tank (1).

9. The ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower according to claim 7, characterized in that, It also includes a control component (9) disposed on the tank body (1), the control component (9) comprising, A temperature sensor (901) is disposed on the tank body (1), and the working end of the temperature sensor (901) is in contact with the reaction chamber (101). Pressure sensor (902) is installed on the tank (1). The working end of the pressure sensor (902) is in contact with the reaction chamber (101). The temperature sensor (901) and the pressure sensor (902) are both electrically connected to the control console (302).

10. An ultrasonic-microwave synergistic desorption method for a natural gas decarbonization tower, using the ultrasonic-microwave synergistic desorption system for a natural gas decarbonization tower as described in any one of claims 7 or 9, characterized in that, include: S1: Turn on the ultrasonic transducer and microwave generator, and control the temperature of the reaction chamber of the tank to rise to 80~120℃ via the control console; S2: When the temperature inside the reaction chamber of the tank reaches the set value, the rich liquid that has absorbed CO2 is sent into the reaction chamber of the tank from the inlet. S3: The desorbed CO2 and natural gas mixture is discharged from the gas outlet at the top of the tank for further processing. The ultrasonic transducer is turned off by controlling the control console, and the microwave generator is slowly turned off. The lean liquid after desorbing the gas is sent out from the liquid outlet for recycling.

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