Device for drying moisture in carbon dioxide production gas

Abstract

The utility model relates to carbon dioxide production gas internal moisture drying equipment which comprises a device body, a gas inlet and a first motor connector are formed in the front face of the device body, a gas diffusion opening is formed in the rear face of the device body, and carbon dioxide firstly passes through a gas condensation pipe and then passes through a second motor connector. Wet carbon dioxide gas can be condensed into water drops on the surface of the gas condensation pipe and the diffusion plate, so that moisture is preliminarily separated from the carbon dioxide gas, and then secondary dehydration is performed on the water absorption sponge; the carbon dioxide subjected to secondary dehydration can be subjected to heating and third dehydration treatment through the gas drying pipe again, and finally dry carbon dioxide gas is discharged from the gas diffusion opening.

Description

Technical Field

[0001] This utility model relates to a drying device, specifically a device for drying internal moisture in carbon dioxide production gas. Background Technology

[0002] Carbon dioxide is a colorless and odorless gas at room temperature and pressure, or a colorless and odorless gas with a slightly acidic taste in its aqueous solution. It is also a common greenhouse gas. The drying of carbon dioxide obtained from material reactions or external collection often involves a series of processes such as drying, desulfurization, purification, liquefaction, and extraction. Specifically, the drying process requires the use of appropriate drying equipment to filter out the moisture in the carbon dioxide gas.

[0003] Chinese patent discloses an internal moisture drying mechanism for carbon dioxide production gas (authorization announcement number CN222567310U). This patented technology can dry moist carbon dioxide; however, the limitation of single-batch drying results in a limited degree of drying. This patent uses concentrated sulfuric acid to achieve dehumidification, but this method results in the carbon dioxide gas carrying impurities such as sulfides. Although some treatment is done, it is not comprehensive, making it difficult to completely remove sulfides from the gas, and the concentration of concentrated sulfuric acid gradually decreases, thus losing its dehumidification function. Therefore, those skilled in the art provide an internal moisture drying device for carbon dioxide production gas to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a device for drying internal moisture in carbon dioxide production gas, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A device for drying internal moisture in carbon dioxide production gas includes a device body. The front of the device body is provided with a gas inlet and a motor interface one. The rear of the device body is provided with a gas diffuser. The upper part of the device body is slidably connected to a sponge connecting plate. The right side of the device body is provided with a motor interface two. The motor interface one is connected to the fan rotating shaft of an airflow drive device. The fan rotating shaft is fixedly connected to a fan. The lower part of the sponge connecting plate is fixedly connected to a water-absorbing sponge. The sponge connecting plate can be manually lifted to facilitate the replacement of the water-absorbing sponge.

[0007] Preferably, the gas condenser tube of the condensation drying device is located between the airflow drive device and the sponge connecting plate. The lower outlet of the gas condenser tube is fixedly connected to the condensing medium tube. The condensing medium tube passes sequentially from the gas condenser tube through the temperature sensing device, the compressor, the gas drying tube, and the flow limiting valve, and finally connects to the upper inlet of the gas condenser tube. Both the gas condenser tube and the gas drying tube are equipped with diffuser plates. Motor power is connected to motor interface one and motor interface two, and moist carbon dioxide gas is introduced into the gas inlet. Driven by the fan, the carbon dioxide first passes through the gas condenser tube. The moist carbon dioxide gas condenses into water droplets on the surface of the gas condenser tube and the diffuser plate, thus initially removing the moisture from the carbon dioxide gas. Then, it undergoes secondary dehydration on the absorbent sponge. After secondary dehydration, the carbon dioxide passes through the gas drying tube again for heating and a third dehydration treatment, and finally, the dry carbon dioxide gas is discharged from the gas diffuser.

[0008] Preferably, the temperature sensing device includes a temperature sensor, a vacuum insulation layer, and a temperature medium tube. The temperature sensor is disposed in the vacuum insulation layer and is attached around the condensing medium tube. The temperature sensor is connected to the temperature medium inlet and outlet of the flow limiting valve through the temperature medium tube. The gas condensing tube mainly contains a low-temperature liquid condensing medium. After multiple rounds of dehydration, the temperature rises and the gas vaporizes, entering the temperature sensing device through the condensing medium tube. The temperature medium in the temperature sensor can sensitively detect the temperature of the gas condensing medium in the condensing medium tube at this time and produce a corresponding volume change.

[0009] Preferably, the compressor includes an air inlet 1 connected to a chamber to be compressed, the chamber to be compressed and a compression chamber connected with a diaphragm 1 inside the chamber to be compressed at the connection point, the other side of the compression chamber connected to a booster chamber with a diaphragm 2 inside the compression chamber at the connection point, the booster chamber connected to an air outlet 1, a slide rail inside the compression chamber slidably connected to a compression piston, the compression piston and the compression chamber being in transition fit, a connecting rod 1 fixedly connected below the compression piston, a connecting rod 1 rotatably connected to a connecting rod 2, a connecting rod 2 rotatably connected to an eccentric position of a compression wheel, a compression wheel fixedly connected to a compression wheel drive shaft, and a motor interface 2 connected to a gaseous condensing medium entering the compressor. After power is supplied to the compression wheel, the piston reciprocates, and under the combined opening and closing conditions of diaphragm 1 and diaphragm 2, the gas in the chamber to be compressed and the compression chamber are compressed and heated into the booster chamber. The gaseous condensing medium enters the gas drying tube and is gradually cooled.

[0010] Preferably, the flow limiting valve includes a temperature medium inlet and outlet, which are connected to a piston inside the hydraulic rod. A return plate is provided at the bottom of the hydraulic rod, and the return plate is connected to the flow limiting valve via a spring. The bottom of the return plate is fixedly connected to a flow limiting rod, and the bottom of the flow limiting rod is fixedly connected to a flow limiting plate. The flow limiting plate is disposed inside a flow limiting tube, and both the flow limiting tube and the flow limiting plate are disposed within a flow limiting element. The two sides of the flow limiting tube are respectively an air inlet and an air outlet. Subsequently, the gas is cooled again at the flow limiting element of the flow limiting valve and re-enters the gas condenser tube. During this process, the extension and retraction of the hydraulic rod is controlled by a temperature sensing device. The temperature sensor can sense the internal temperature of the condenser tube and control the opening and closing of the flow limiting plate to achieve the purpose of controlling the temperature of the condenser.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model features three dehumidification processes, which significantly improves the dehumidification effect. Furthermore, the first and third dehumidification processes of this utility model form a cycle. Although the second dehumidification process may cause the absorbent sponge to become damp, it can be replaced and dried for continued use.

[0013] 2. This invention avoids direct contact between moist carbon dioxide gas and other compounds, which ensures the purity of the carbon dioxide gas and therefore eliminates the need for purification treatment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of a device for drying internal moisture in carbon dioxide production gas.

[0015] Figure 2 This is a schematic diagram of the internal structure of a device body in a carbon dioxide production gas internal moisture drying equipment.

[0016] Figure 3 This is a schematic diagram of the condensation drying device in a carbon dioxide production gas internal moisture drying equipment.

[0017] Figure 4 This is a side view schematic diagram of the internal structure of a carbon dioxide production gas internal moisture drying device.

[0018] Figure 5 This is a schematic diagram of the temperature sensing device in an internal moisture drying device for carbon dioxide production gas.

[0019] Figure 6 This is a schematic diagram of the compressor in a carbon dioxide production gas internal moisture drying device.

[0020] Figure 7 This is a schematic diagram of the flow-limiting valve in a carbon dioxide production gas internal moisture drying device.

[0021] Figure 8 This is a schematic diagram of the flow-limiting component in a carbon dioxide production gas internal moisture drying device.

[0022] In the diagram: 1. Device body; 2. Gas inlet; 3. Airflow drive device; 311. Motor interface one; 312. Fan rotating shaft; 313. Fan; 4. Sponge connecting plate; 411. Absorbent sponge; 5. Condensation and drying device; 511. Gas condenser pipe; 512. Gas drying pipe; 513. Diffuser plate; 514. Condensation medium pipe; 6. Temperature sensing device; 611. Temperature sensor; 612. Vacuum insulation layer; 613. Temperature medium pipe; 7. Compressor; 711. Air inlet one; 712. Gas chamber to be compressed; 713. Pressure booster. 714. Air chamber; 715. Air outlet 1; 716. Diaphragm 1; 717. Diaphragm 2; 718. Compressed air chamber; 719. Slide rail; 720. Compression piston; 721. Connecting rod 1; 722. Connecting rod 2; 723. Compression wheel drive shaft; 724. Motor interface 2; 8. Flow limiting valve; 811. Temperature medium inlet and outlet; 812. Hydraulic rod; 813. Spring; 814. Flow limiting rod; 815. Return plate; 816. Flow limiting component; 817. Air inlet 2; 818. Air outlet 2; 819. Flow limiting plate; 820. Flow limiting tube. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-8 In this embodiment of the present invention, a device for drying internal moisture of carbon dioxide production gas includes a device body 1. The front of the device body 1 is provided with a gas inlet 2 and a motor interface 311. The rear of the device body 1 is provided with a gas diffuser. The upper part of the device body 1 is slidably connected to a sponge connecting plate 4. The right side of the device body 1 is provided with a motor interface 724.

[0025] The motor interface 311 is connected to the fan rotating shaft 312 of the airflow drive device 3, the fan rotating shaft 312 is fixedly connected to the fan 313, and the sponge connecting plate 4 is fixedly connected to the water-absorbing sponge 411 below.

[0026] Between the airflow drive device 3 and the sponge connecting plate 4 is the gas condenser pipe 511 of the condenser drying device 5. The lower outlet of the gas condenser pipe 511 is fixedly connected to the condensing medium pipe 514. The condensing medium pipe 514 starts from the gas condenser pipe 511, passes sequentially through the temperature sensing device 6, the compressor 7, the gas drying pipe 512 and the flow limiting valve 8, and finally connects to the upper inlet of the gas condenser pipe 511. Both the gas condenser pipe 511 and the gas drying pipe 512 are equipped with diffuser plates 513.

[0027] The temperature sensing device 6 includes a temperature sensor 611, a vacuum insulation layer 612, and a temperature medium tube 613. The temperature sensor 611 is disposed in the vacuum insulation layer 612 and is attached around the condensing medium tube 514. The temperature sensor 611 is connected to the temperature medium inlet and outlet 811 of the flow limiting valve 8 through the temperature medium tube 613.

[0028] The compressor 7 includes an air inlet 711 connected to a chamber 712 to be compressed. The chamber 712 is connected to a compression chamber 717, and a diaphragm 715 is provided inside the chamber 712 at the connection. The other side of the compression chamber 717 is connected to a booster chamber 713, and a diaphragm 716 is provided inside the booster chamber 717 at the connection. The booster chamber 713 is connected to an air outlet 714. A slide rail is provided inside the compression chamber 717. 718, the slide rail 718 is slidably connected to the compression piston 719, the compression piston 719 is transitionally fitted to the compression chamber 717, the lower part of the compression piston 719 is fixedly connected to the connecting rod 1 720, the connecting rod 1 720 is rotatably connected to the connecting rod 2 721, the connecting rod 2 721 is rotatably connected to the eccentric position of the compression wheel 722, the compression wheel 722 is fixedly connected to the compression wheel drive shaft 723, and the compression wheel drive shaft 723 is connected to the motor interface 2 724;

[0029] The flow limiting valve 8 includes a temperature medium inlet and outlet 811, which is connected to the internal piston of the hydraulic rod 812. The bottom of the hydraulic rod 812 is provided with a return plate 815, which is connected to the flow limiting valve 8 via a spring 813. The bottom of the return plate 815 is fixedly connected to the flow limiting rod 814, and the bottom of the flow limiting rod 814 is fixedly connected to the flow limiting plate 819. The flow limiting plate 819 is disposed inside the flow limiting tube 820. Both the flow limiting tube 820 and the flow limiting plate 819 are disposed in the flow limiting component 816. The two sides of the flow limiting tube 820 are an air inlet 817 and an air outlet 818, respectively.

[0030] The working principle of this utility model is as follows: Motor power is connected to motor interface 311 and motor interface 724, and moist carbon dioxide gas is introduced into gas inlet 2. Driven by fan 313, carbon dioxide first passes through gas condenser 511. Moist carbon dioxide gas condenses into water droplets on the surface of gas condenser 511 and diffuser plate 513, thus allowing the moisture to initially separate from the carbon dioxide gas. Then, it undergoes secondary dehydration in absorbent sponge 411. After secondary dehydration, the carbon dioxide passes through gas drying tube 512 for heating and a third dehydration treatment, and finally, dry carbon dioxide gas is discharged from gas diffuser.

[0031] The gas condenser tube 511 mainly contains low-temperature liquid condensing medium. After multiple rounds of dehydration, the temperature rises and it vaporizes, passing through the condensing medium tube 514 into the temperature sensing device 6. The temperature medium inside the temperature sensor 611 can sensitively detect the temperature of the gaseous condensing medium in the condensing medium tube 514 and produce a corresponding volume change. Subsequently, the gaseous condensing medium enters the compressor 7. After power is supplied to the compression wheel 722, the piston reciprocates. With the cooperation of the opening and closing conditions of diaphragm 1 715 and diaphragm 2 716, the gas in the gas chamber to be compressed 712 and the compressed gas chamber 717 is compressed and heated, entering the booster gas chamber 713. The gaseous condensing medium enters the gas drying tube 512 and is gradually cooled. Then, it is cooled again at the flow limiting element 816 of the flow limiting valve 8 and re-enters the gas condenser tube 511. During this process, the extension and retraction of the hydraulic rod 812 is controlled by the temperature sensing device 6. The temperature sensor 611 can sense the internal temperature of the condensing medium tube 514 and control the opening and closing of the flow limiting plate 819 to achieve the purpose of controlling the temperature of the condensing medium.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for drying internal moisture in carbon dioxide production gas, comprising a device body (1), characterized in that, The device body (1) has a gas inlet (2) and a motor interface (311) at the front, a gas diffuser at the rear, a slidable connection between the upper part of the device body (1) and a sponge connecting plate (4), a motor interface (724) on the right side of the device body (1), a motor interface (311) connected to the fan rotating shaft (312) of the airflow drive device (3), a fixed connection between the fan rotating shaft (312) and the fan (313), and a fixed connection between the lower part of the sponge connecting plate (4) and a water-absorbing sponge (411).

2. The internal moisture drying equipment for carbon dioxide production gas according to claim 1, characterized in that, Between the airflow drive device (3) and the sponge connecting plate (4) is the gas condenser pipe (511) of the condenser drying device (5). The lower outlet of the gas condenser pipe (511) is fixedly connected to the condensing medium pipe (514). The condensing medium pipe (514) starts from the gas condenser pipe (511), passes through the temperature sensing device (6), the compressor (7), the gas drying pipe (512), and the flow limiting valve (8) in sequence, and finally connects to the upper inlet of the gas condenser pipe (511). Both the gas condenser pipe (511) and the gas drying pipe (512) are equipped with diffuser plates (513).

3. The internal moisture drying equipment for carbon dioxide production gas according to claim 2, characterized in that, The temperature sensing device (6) includes a temperature sensor (611), a vacuum insulation layer (612), and a temperature medium tube (613). The temperature sensor (611) is disposed in the vacuum insulation layer (612) and attached around the condensing medium tube (514). The temperature sensor (611) is connected to the temperature medium inlet and outlet (811) of the flow limiting valve (8) through the temperature medium tube (613).

4. The internal moisture drying equipment for carbon dioxide production gas according to claim 2, characterized in that, The compressor (7) includes an air inlet (711), which is connected to a chamber to be compressed (712). The chamber to be compressed (712) is connected to a compressed chamber (717), and a diaphragm (715) is provided inside the chamber to be compressed (712) at the connection. The other side of the compressed chamber (717) is connected to a booster chamber (713), and a diaphragm (716) is provided inside the compressed chamber (717) at the connection. The booster chamber (713) is connected to an air outlet (714).

5. The internal moisture drying equipment for carbon dioxide production gas according to claim 4, characterized in that, The compressed air chamber (717) is provided with a slide rail (718), which is slidably connected to the compression piston (719). The compression piston (719) is transitionally fitted to the compressed air chamber (717). The lower part of the compression piston (719) is fixedly connected to the first connecting rod (720). The first connecting rod (720) is rotatably connected to the second connecting rod (721). The second connecting rod (721) is rotatably connected to the eccentric position of the compression wheel (722). The compression wheel (722) is fixedly connected to the compression wheel drive shaft (723). The compression wheel drive shaft (723) is connected to the second motor interface (724).

6. The internal moisture drying equipment for carbon dioxide production gas according to claim 2, characterized in that, The flow limiting valve (8) includes a temperature medium inlet and outlet (811), which is connected to the piston inside the hydraulic rod (812). The bottom of the hydraulic rod (812) is provided with a return plate (815), which is connected to the flow limiting valve (8) by a spring (813). The bottom of the return plate (815) is fixedly connected to the flow limiting rod (814).

7. The internal moisture drying equipment for carbon dioxide production gas according to claim 6, characterized in that, The bottom of the flow limiting rod (814) is fixedly connected to the flow limiting plate (819). The flow limiting plate (819) is set inside the flow limiting tube (820). Both the flow limiting tube (820) and the flow limiting plate (819) are set in the flow limiting component (816). The two sides of the flow limiting tube (820) are the second air inlet (817) and the second air outlet (818).

Images