Carbon dioxide capturing and absorbing device

Abstract

The utility model provides a carbon dioxide capturing and absorbing device which comprises a capturing cavity box and a detection cavity box, a capturing cavity is arranged in the capturing cavity box, a gas uniformizing partition plate is arranged in the capturing cavity and divides the capturing cavity into a first chamber and a second chamber, the first chamber is communicated with a gas inlet pipe, the second chamber is communicated with a gas outlet pipe, and the gas outlet pipe is communicated with a gas outlet pipe. A filler mesh drawer is arranged in the second chamber and is used for containing capture filler of carbon dioxide; a detection cavity is formed in the detection cavity box, a carbon dioxide monitoring sensor is arranged in the detection cavity, a gas inlet detection branch pipe and a gas exhaust detection branch pipe are sequentially arranged on the side wall of the gas exhaust pipe in the gas exhaust direction, the first end of the gas inlet detection branch pipe communicates with the gas exhaust pipe, and the second end of the gas inlet detection branch pipe communicates with the detection cavity; the first end of the exhaust detection branch pipe is communicated with the detection cavity, and the second end is communicated with the exhaust pipe. The device disclosed by the utility model is simple in structure and controllable in cost, and the energy consumption of a trapping process is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the field of adsorption devices, in particular to a carbon dioxide capture and absorption device. Background Art

[0002] During gas reservoir exploitation and production, the gas needs to be transported through pipelines. Carbon dioxide exists in the gas. The carbon dioxide content in low-content gas is 1.04-2.15%. Carbon dioxide gas dissolves in water to form carbonic acid. Carbonic acid is a weak acid. At room temperature, it undergoes weak ionization with an ionization rate of only one thousandth. It is corrosive. Therefore, the carbon dioxide content needs to be processed and adsorbed before transportation to avoid corrosion to pipelines and terminal equipment.

[0003] The existing carbon dioxide absorption method is usually a chemical absorption method. The core equipment required in this method includes an absorption tower and a regeneration tower. The absorption tower is used for low-temperature absorption of CO2 in the lean absorption liquid, and the regeneration tower is used to provide a place for thermal regeneration of the rich absorption liquid after absorbing CO2. Although the chemical absorption method can effectively absorb carbon dioxide, its regeneration energy consumption is relatively high, resulting in a large energy consumption in the capture process. In addition, the efficiency of the absorbent is not high, and the solution circulation volume is large, which further increases the processing cost. Therefore, a carbon dioxide capture and absorption device with a more streamlined structure and more controllable cost is needed. Summary of the invention

[0004] Based on this, it is necessary to provide a carbon dioxide capture and absorption device to address the above technical problems.

[0005] A carbon dioxide capture and absorption device comprises a capture chamber box and a detection chamber box.

[0006] The capture chamber box is provided with a capture chamber, and a gas equalization baffle is provided in the capture chamber, and the gas equalization baffle divides the capture chamber into a first chamber and a second chamber, the first chamber is connected with an air inlet pipe, and the second chamber is connected with an exhaust pipe, the air inlet pipe is provided with a first inlet and outlet pipe valve, and the exhaust pipe is provided with a second inlet and outlet pipe valve, and the second chamber is provided with a filler net drawer, and the filler net drawer is used to hold a capture filler of carbon dioxide;

[0007] A detection chamber is provided in the detection chamber box, a carbon dioxide monitoring sensor is provided in the detection chamber, an intake detection branch pipe and an exhaust detection branch pipe are provided in sequence on the side wall of the exhaust pipe along the exhaust direction of the gas, a first end of the intake detection branch pipe is connected to the exhaust pipe, and a second end of the intake detection branch pipe is connected to the detection chamber, a first end of the exhaust detection branch pipe is connected to the detection chamber, and a second end of the exhaust detection branch pipe is connected to the exhaust pipe.

[0008] In one embodiment, the air inlet pipe and the exhaust pipe are configured as follows:

[0009] A first flange is provided at one end of the air inlet pipe away from the first chamber;

[0010] and / or

[0011] A second flange is disposed at one end of the exhaust pipe away from the second chamber.

[0012] In one embodiment, the capture chamber box includes a main box body and a box cover, the capture chamber is arranged in the main box body, an installation port is arranged at one end of the main box body, the installation port is connected to the capture chamber, and the box cover is connected to the side wall of the installation port and closes the installation port.

[0013] In one embodiment, an airtight pad is provided on a side of the box cover facing the capture chamber.

[0014] In one embodiment, a controller is further included, wherein the controller is communicatively connected with the carbon dioxide monitoring sensor, the first inlet and outlet valve, and the second inlet and outlet valve.

[0015] In one embodiment, a gas leakage detection sensor is further included, and the gas leakage detection sensor is used to detect the gas leakage condition of the capture chamber box.

[0016] In one embodiment, a protective box is further included, wherein an installation cavity is provided in the protective box, the capture chamber box and the detection chamber box are both provided in the installation cavity, one end of the air inlet pipe away from the first chamber protrudes from the side wall of the protective box, and one end of the exhaust pipe away from the second chamber protrudes from the side wall of the protective box.

[0017] In one embodiment, the protective box includes a main box body and a box cover, the installation cavity is arranged in the main box body, a sealing port is arranged at one end of the main box body, the sealing port is connected to the installation cavity, and the box cover is connected to the side wall of the sealing port and closes the sealing port.

[0018] In one embodiment, the leakage gas detection sensor is disposed on a side wall of the installation cavity.

[0019] In one embodiment, a flow regulating valve is provided on the air intake detection branch pipe.

[0020] The above-mentioned carbon dioxide capture and absorption device disperses the gas entering the first chamber from the air inlet pipe and enters the second chamber through the gas equalization baffle, and then adsorbs the carbon dioxide in the gas through the capture filler contained in the filler mesh of the second chamber, thereby reducing the carbon dioxide content in the gas. Afterwards, the filtered gas after absorbing the carbon dioxide is discharged from the exhaust pipe and enters the detection chamber from the air intake detection branch pipe. The carbon dioxide concentration of the filtered gas is detected by the carbon dioxide monitoring sensor in the detection chamber to confirm whether the adsorption effect of carbon dioxide meets expectations, so that the first inlet and outlet valve and the second inlet and outlet valve can be adjusted more accurately according to the test results, and the flow of gas in the carbon dioxide capture and absorption device can be controlled, thereby better managing the capture and absorption efficiency of the carbon dioxide capture and absorption device. The device structure of the present application is streamlined, the cost is controllable, and the energy consumption of the capture process is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of a carbon dioxide capture and absorption device in an embodiment;

[0022] Figure 2 is a schematic diagram of the internal structure of a capture chamber box of a carbon dioxide capture and absorption device in an embodiment;

[0023] Figure 3 The diagram is a schematic diagram of the structural coordination relationship between a protective box and a controller of a carbon dioxide capture and absorption device in an embodiment.

[0024] Explanation of the reference numerals: 100, capture chamber box; 110, gas equalization baffle; 120, first chamber; 130, second chamber; 131, filler net drawer; 140, main box body; 150, box cover; 151, airtight pad; 200, detection chamber box; 210, detection chamber; 220, carbon dioxide monitoring sensor; 230, intake detection branch pipe; 231, flow regulating valve; 240, exhaust detection branch pipe; 300, intake pipe; 310, first inlet and outlet valve; 320, first flange; 400, exhaust pipe; 410, second inlet and outlet valve; 420, second flange; 500, controller; 600, leakage gas detection sensor; 700, protection box; 710, main box body; 720, box cover. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] In one embodiment, Figure 1-3As shown, a carbon dioxide capture and absorption device is provided, including a capture chamber box 100 and a detection chamber box 200.

[0027] The capture chamber box 100 is provided with a capture chamber, and a gas equalizing baffle 110 is provided in the capture chamber, and the gas equalizing baffle 110 divides the capture chamber into a first chamber 120 and a second chamber 130, the first chamber 120 is connected with an air inlet pipe 300, and the second chamber 130 is connected with an exhaust pipe 400, the air inlet pipe 300 is provided with a first inlet and outlet valve 310, and the exhaust pipe 400 is provided with a second inlet and outlet valve 410, and the second chamber 130 is provided with a filler net drawer 131, and the filler net drawer 131 is used to hold a capture filler of carbon dioxide;

[0028] A detection chamber 210 is provided in the detection chamber box 200, and a carbon dioxide monitoring sensor 220 is provided in the detection chamber 210. An intake detection branch pipe 230 and an exhaust detection branch pipe 240 are sequentially provided on the side wall of the exhaust pipe 400 along the exhaust direction of the gas. The first end of the intake detection branch pipe 230 is connected to the exhaust pipe 400, and the second end of the intake detection branch pipe 230 is connected to the detection chamber 210. The first end of the exhaust detection branch pipe 240 is connected to the detection chamber 210, and the second end of the exhaust detection branch pipe 240 is connected to the exhaust pipe 400.

[0029] In this embodiment, the valve of the air inlet pipe 300 is used to guide the gas to be treated into the first chamber 120. After the gas to be treated diffuses in the first chamber 120, it passes through the gas equalization partition 110 and enters the second chamber 130. A packing mesh 131 is provided in the second chamber 130. The carbon dioxide in the gas to be treated is adsorbed by the capture packing placed in the packing mesh 131, so as to achieve the effect of reducing the carbon dioxide content. Then, the gas filtered by the capture packing is discharged from the exhaust pipe 400, and part of the gas enters the detection chamber 210 along the air inlet detection branch pipe 230. Since the gas fluidity inside the detection chamber 210 is small, the monitoring of the carbon dioxide monitoring sensor 220 is more accurate.

[0030] The carbon dioxide monitoring sensor 220 monitors the carbon dioxide concentration of the filtered gas to confirm whether the effect of gas filtering is as expected. The monitored gas enters the exhaust pipe 400 along the exhaust detection branch pipe 240 and is finally discharged together with most of the filtered gas.

[0031] Among them, the gas distribution baffle 110 helps to prevent local accumulation of the gas to be treated in the first chamber 120 or the formation of an uneven flow pattern. By evenly distributing the gas, it can ensure that after the gas to be treated enters the second chamber 130, every part of the capture filler surface can effectively contact the carbon dioxide gas, thereby improving the adsorption efficiency and the overall performance of the device.

[0032] The first inlet and outlet pipe valve 310 and the second inlet and outlet pipe valve 410 are used to control the flow of the gas to be treated. By adjusting the opening of the first inlet and outlet pipe valve 310 and the second inlet and outlet pipe valve 410, the inlet and outlet gas flow rates can be controlled so that the adsorption capacity of the capture filler is adapted to the gas flow rate, thereby enabling the adsorption efficiency of the capture filler to be better maintained in a stable state.

[0033] In summary, the above-mentioned carbon dioxide capture and absorption device disperses the gas entering the first chamber 120 from the air inlet pipe 300 and enters the second chamber 130 through the gas equalizing baffle 110, and then adsorbs the carbon dioxide in the gas through the capture filler contained in the filler net 131 of the second chamber 130, thereby reducing the content of carbon dioxide in the gas. Afterwards, the filtered gas after absorbing carbon dioxide is discharged from the exhaust pipe 400, and enters the detection chamber 210 from the air intake detection branch pipe 230. The carbon dioxide concentration of the filtered gas is detected by the carbon dioxide monitoring sensor 220 in the detection chamber 210 to confirm whether the adsorption effect of carbon dioxide meets expectations, so that the first inlet and outlet valve 310 and the second inlet and outlet valve 410 can be adjusted more accurately according to the test results, and the flow of gas in the carbon dioxide capture and absorption device can be controlled, thereby better managing the capture and absorption efficiency of the carbon dioxide capture and absorption device. The device structure of the present application is simple, the cost is controllable, and the operation is more convenient, which effectively reduces the energy consumption of the capture process.

[0034] In one embodiment, Figure 1 As shown, the air intake pipe 300 and the exhaust pipe 400 are configured as follows:

[0035] A first flange 320 is disposed at one end of the air inlet pipe 300 away from the first chamber 120;

[0036] and / or

[0037] A second flange 420 is disposed at one end of the exhaust pipe 400 away from the second chamber 130 .

[0038] In one embodiment, the end of the intake pipe 300 away from the first chamber 120 is provided with a first flange 320; in one embodiment, the end of the exhaust pipe 400 away from the second chamber 130 is provided with a second flange 420. In one embodiment, the end of the intake pipe 300 away from the first chamber 120 is provided with a first flange 320, and the end of the exhaust pipe 400 away from the second chamber 130 is provided with a second flange 420.

[0039] In this embodiment, the first flange 320 is used to better fix the air inlet pipe 300 with the delivery device of the gas to be treated, so as to achieve more stable gas delivery. The second flange 420 is used to fix the exhaust pipe 400 with the external gas delivery device, so as to achieve more stable delivery of filtered gas. The first flange 320 and / or the second flange 420 further increase the convenience of fixing and installing the carbon dioxide capture absorption device.

[0040] In one embodiment, Figure 1 As shown, the capture chamber box 100 includes a main box body 140 and a box cover 150, the capture chamber is arranged in the main box body 140, one end of the main box body 140 is provided with a mounting port, the mounting port is connected to the capture chamber, and the box cover 150 is connected to the side wall of the mounting port and closes the mounting port.

[0041] In this embodiment, the main box body 140 and the box cover 150 are detachably connected to improve the convenience of disassembly and assembly of the capture chamber box 100, so as to facilitate more convenient installation or replacement of the gas equalizing baffle 110 and the capture filler. The box cover 150 is connected to the side wall of the installation port and closes the installation port, reducing the leakage of the gas to be treated from the capture chamber box 100, thereby affecting the capture and absorption of carbon dioxide.

[0042] In one embodiment, Figure 1 As shown, the main box body 140 and the box cover 150 are fixedly connected by bolts to facilitate the installation and removal of the box cover 150 and reduce the leakage of the gas to be treated.

[0043] In one embodiment, the main box body is snap-fitted with the box cover, a slot is provided on the side wall of the installation opening, a snap-fit ​​column is provided on the side of the box cover facing the installation opening, and the slot is snap-fitted with the snap-fit ​​column to fix the box cover to the side wall of the installation opening.

[0044] To further reduce the leakage of the gas to be treated, in one embodiment, Figure 2 As shown, an airtight pad 151 is provided on one side of the box cover 150 facing the capture cavity.

[0045] In this embodiment, the airtight pad 151 is a silicone pad, which effectively adheres to the contact surface between the box cover 150 and the capture chamber to form a tight barrier, thereby preventing the gas from leaking out from the tiny gaps on the contact surface, further reducing the leakage of the gas to be treated and improving the efficiency of carbon dioxide capture and absorption.

[0046] To further improve the automation level of the carbon dioxide capture and absorption device, in one embodiment, Figure 3As shown, a controller 500 is also included, and the controller 500 is communicatively connected with the carbon dioxide monitoring sensor 220 , the first inlet and outlet valve 310 , and the second inlet and outlet valve 410 .

[0047] In this embodiment, the carbon dioxide monitoring sensor 220 monitors the carbon dioxide concentration of the filtered gas and feeds back the monitoring results to the controller 500. The controller 500 controls the opening of the first inlet and outlet valve 310 and the second inlet and outlet valve 410 according to the feedback results, thereby realizing automatic and intelligent regulation of the flow of the gas to be treated entering the capture chamber box 100.

[0048] For example, if the carbon dioxide monitoring sensor 220 detects that the carbon dioxide concentration of the filtered gas is higher than a preset threshold, it reflects that there is too much gas to be processed currently entering the carbon dioxide capture and absorption device, which exceeds the upper limit that the capture chamber box 100 can capture. The carbon dioxide monitoring sensor 220 generates a first control signal and sends it to the controller 500. In response to the first control signal, the controller 500 correspondingly reduces the opening of the first inlet and outlet pipe valve 310 to reduce the amount of gas to be processed entering the capture chamber box 100, and correspondingly reduces the opening of the second inlet and outlet pipe valve 410 to maintain the stability of gas discharge.

[0049] In one embodiment, Figure 1 As shown, a gas leakage detection sensor 600 is also included, and the gas leakage detection sensor 600 is used to detect the gas leakage status of the capture chamber box 100.

[0050] In this embodiment, in order to more timely discover the gas leakage of the capture chamber box 100, a leaking gas detection sensor 600 is provided. When the leakage degree of the gas to be processed exceeds the standard, the leaking gas detection sensor 600 generates a leakage signal and sends the leakage signal to the corresponding alarm or display to inform the user to handle it.

[0051] In one embodiment, the controller 500 is equipped with an alarm, and the leaking gas detection sensor 600 is connected to the controller 500 in communication. When the controller 500 receives a leaking signal, the alarm is controlled to work, and the user is notified in time to perform maintenance, thereby reducing the low efficiency of carbon dioxide capture and absorption caused by gas leakage. On the other hand, when the gas leakage is too high, explosion hazards are prone to occur. The leaking gas detection sensor 600 can eliminate the hidden dangers in time, thereby improving the safety of the carbon dioxide capture and absorption device.

[0052] In one embodiment, Figure 1As shown, it also includes a protective box 700, in which an installation cavity is set. The capture chamber box 100 and the detection chamber box 200 are both set in the installation cavity, and the end of the air inlet pipe 300 away from the first chamber 120 protrudes from the side wall of the protective box 700, and the end of the exhaust pipe 400 away from the second chamber 130 protrudes from the side wall of the protective box 700.

[0053] In this embodiment, the capture chamber box 100 and the detection chamber box 200 are protected by the protection box 700, which reduces the corrosion of the capture chamber box 100 and the detection chamber box 200 by the external environment and increases the service life of the capture chamber box 100 and the detection chamber box 200. At the same time, when disassembling and assembling the carbon dioxide capture and absorption device, the protection box 700 can also play a good protective effect, avoiding damage to the capture chamber box 100 and the detection chamber box 200 during the installation process.

[0054] In one embodiment, Figure 3 As shown, the protective box 700 includes a main box body 710 and a box cover 720, the installation cavity is arranged in the main box body 710, a sealing port is arranged at one end of the main box body 710, the sealing port is connected to the installation cavity, and the box cover 720 is connected to the side wall of the sealing port and closes the sealing port.

[0055] In this embodiment, the main box body 710 and the box cover 720 are detachably connected, which improves the convenience of disassembly and assembly of the protective box 700, thereby facilitating more convenient installation of the capture chamber box 100 and the detection chamber box 200, improving the convenience of disassembly and assembly of the entire carbon dioxide capture and absorption device, and facilitating later maintenance and repair.

[0056] In one embodiment, Figure 3 As shown, the controller 500 is disposed on the outer wall of the main box 710 .

[0057] In this embodiment, the controller 500 is disposed on the outer wall of the main box body 710, so that the structure of the entire carbon dioxide capture and absorption device is more integrated and streamlined. The user can more conveniently control the first inlet and outlet valve 310 and the second inlet and outlet valve 410 through the controller 500, and can also more intuitively receive the alarm information of the controller 500.

[0058] In one embodiment, Figure 1 As shown, the leakage gas detection sensor 600 is arranged on the side wall of the installation cavity.

[0059] In this embodiment, the protective box 700 seals the gas leaking from the capture chamber box 100 in the installation cavity, reducing the fluidity of the gas, allowing the leaked gas to flow more toward the leakage gas detection sensor 600, thereby improving the detection efficiency and reliability of the leakage gas detection sensor 600.

[0060] In one embodiment, Figure 1 As shown, a flow regulating valve 231 is provided on the intake detection branch pipe 230 .

[0061] In this embodiment, the flow regulating valve 231 is used to regulate the flow of the filtered gas entering the detection chamber box 200, thereby preventing too much filtered gas from entering the detection chamber box 200, which would reduce the gas delivery efficiency, and too little filtered gas from entering, which would result in inaccurate detection results. This helps to further regulate the filtered gas delivery efficiency and improve the detection effect of the carbon dioxide monitoring sensor 220.

[0062] Each embodiment in this specification is described in a progressive manner, and the same and similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. In the description of this specification, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of this specification. In this specification, the schematic representation of the above terms does not necessarily target the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, in the absence of contradiction, a person skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0063] The above is only an example of the embodiment of the present specification and is not intended to limit the embodiment of the present specification. For those skilled in the art, the embodiment of the present specification may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiment of the present specification shall be included in the scope of the claims of the embodiment of the present specification.

Claims

1. A carbon dioxide capture and absorption device, characterized in that: Including capture chamber box and detection chamber box, The capture chamber box is provided with a capture chamber, and a gas equalization baffle is provided in the capture chamber, and the gas equalization baffle divides the capture chamber into a first chamber and a second chamber, the first chamber is connected with an air inlet pipe, and the second chamber is connected with an exhaust pipe, the air inlet pipe is provided with a first inlet and outlet pipe valve, and the exhaust pipe is provided with a second inlet and outlet pipe valve, and the second chamber is provided with a filler net drawer, and the filler net drawer is used to hold a capture filler of carbon dioxide; A detection chamber is provided in the detection chamber box, a carbon dioxide monitoring sensor is provided in the detection chamber, an intake detection branch pipe and an exhaust detection branch pipe are provided in sequence on the side wall of the exhaust pipe along the exhaust direction of the gas, a first end of the intake detection branch pipe is connected to the exhaust pipe, and a second end of the intake detection branch pipe is connected to the detection chamber, a first end of the exhaust detection branch pipe is connected to the detection chamber, and a second end of the exhaust detection branch pipe is connected to the exhaust pipe.

2. A carbon dioxide capture and absorption device according to claim 1, characterized in that: The intake pipe and the exhaust pipe are configured as follows: A first flange is provided at one end of the air inlet pipe away from the first chamber; and / or A second flange is disposed at one end of the exhaust pipe away from the second chamber.

3. A carbon dioxide capture and absorption device according to claim 1, characterized in that: The capture chamber box includes a main box body and a box cover, the capture chamber is arranged in the main box body, one end of the main box body is provided with a mounting port, the mounting port is connected to the capture chamber, and the box cover is connected to the side wall of the mounting port and closes the mounting port.

4. A carbon dioxide capture and absorption device according to claim 3, characterized in that: An airtight pad is arranged on one side of the box cover facing the capture cavity.

5. The carbon dioxide capture and absorption device according to claim 1, characterized in that: It also includes a controller, which is communicatively connected with the carbon dioxide monitoring sensor, the first inlet and outlet valve, and the second inlet and outlet valve.

6. A carbon dioxide capture and absorption device according to claim 1, characterized in that: It also includes a gas leakage detection sensor, which is used to detect the gas leakage status of the capture chamber box.

7. A carbon dioxide capture and absorption device according to claim 6, characterized in that: It also includes a protective box, which has an installation cavity. The capture chamber box and the detection chamber box are both arranged in the installation cavity. The end of the air inlet pipe away from the first chamber protrudes from the side wall of the protective box, and the end of the exhaust pipe away from the second chamber protrudes from the side wall of the protective box.

8. A carbon dioxide capture and absorption device according to claim 7, characterized in that: The protective box includes a main box body and a box cover, the installation cavity is arranged in the main box body, a sealing port is arranged at one end of the main box body, the sealing port is connected to the installation cavity, and the box cover is connected to the side wall of the sealing port and closes the sealing port.

9. A carbon dioxide capture and absorption device according to claim 7, characterized in that: The leaking gas detection sensor is arranged on a side wall of the installation cavity.

10. A carbon dioxide capture and absorption device according to any one of claims 1 to 9, characterized in that: The air intake detection branch pipe is provided with a flow regulating valve.

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