Carbon dioxide cryogenic dryer

Abstract

The utility model belongs to the field of copious cooling dryers, and particularly relates to a carbon dioxide copious cooling dryer which comprises a drying box, a support is fixedly connected to the lower end of the drying box, a conveying pipe is installed at the right end of the drying box through bolts, and an exhaust pipe is fixedly installed at the upper end of the drying box. A fixing frame is fixedly connected to the left portion of the inner wall of the drying box, a cleaning mechanism is arranged on the fixing frame, and a connecting shaft is installed in the right end of the drying box through a bearing. The drying barrel, the heat exchange pipe, the flow guide pipe and other structures are additionally arranged in the drying box, in the process of drying airflow, the airflow can be blown to the drying barrel through the flow guide pipe, and then moisture in the airflow is frozen and dried through the supercooled drying barrel; therefore, pipeline blockage caused by flowing of the airflow in the drying pipe can be effectively avoided, and the airflow drying efficiency can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cryogenic dryers, in particular to a carbon dioxide cryogenic dryer. Background Art

[0002] In the process of producing carbon dioxide, after the air is purified, the moisture in the air can be dried by a cryogenic dryer. According to a gas dryer proposed in the patent application publication number: CN115414766A, the application relates to a gas dryer, which relates to the field of air drying technology. In order to solve the problem that the temperature of the refrigerant entering the heat exchange plate is too low during the drying of compressed air, resulting in ice blockage inside the heat exchange plate. It includes a chassis, a heat exchange plate, a condenser, a refrigerant compressor and a condenser evaporator connected in sequence are arranged in the chassis, and a cooling channel for the circulation of refrigerant is opened in the heat exchange plate; a control module is arranged in the chassis, a first temperature sensor is arranged at the connection between the condenser evaporator and the heat exchange plate, and a second temperature sensor is arranged at the connection between the heat exchange plate and the condenser. The control module is also electrically connected to a heat recharge valve, and the control module controls the operation of the heat recharge valve based on the detected temperature to control the flow of the refrigerant entering the heat exchange plate and passing through the heat exchange plate toward the condenser. The application has the effect of monitoring the temperature of the refrigerant entering the heat exchange plate, reducing the probability of ice blockage inside the heat exchange plate, and improving work efficiency and safety.

[0003] However, the dryer in the prior art condenses the moisture inside the gas through a long pipeline, and the ice generated after condensation is easy to adhere to the inside of the pipeline, causing the pipeline to be blocked and affecting the flow of gas. Therefore, it is necessary to improve the prior art. Utility Model Content

[0004] The utility model aims to provide a carbon dioxide cryogenic dryer, which solves the problem that the pipeline inside the dryer is easily blocked, resulting in low drying efficiency of the airflow.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a carbon dioxide cryogenic dryer, comprising a drying box, a bracket fixedly connected to the lower end of the drying box, a delivery pipe installed at the right end of the drying box by bolts, an exhaust pipe fixedly installed at the upper end of the drying box, a fixing frame fixedly connected to the left part of the inner wall of the drying box, a cleaning mechanism is arranged on the fixing frame, a connecting shaft is installed inside the right end of the drying box through a bearing, a drying barrel is fixedly connected to one end of the connecting shaft located inside the drying box, a heat exchange pipe is fixedly installed inside the drying box, and a guide pipe is fixedly connected inside the drying box.

[0006] Preferably, a motor is fixedly mounted on the right end of the drying box, and the output shaft of the motor is fixedly connected to the connecting shaft, so that the motor can rotate with the connecting shaft.

[0007] Preferably, the heat exchange tube is in contact with the drying barrel, and a plurality of evenly distributed waist holes are provided on the outer side of the drying barrel, and the waist holes can increase the heat exchange area of ​​the drying barrel.

[0008] Preferably, the guide pipe is in contact with the conveying pipe, the outlet of the guide pipe is located inside the drying barrel and tilted downward by 45°, the guide pipe is fixedly connected to the fixing frame, and the guide pipe can blow the airflow to the lower part of the inner wall of the drying barrel.

[0009] Preferably, the cleaning mechanism includes a square column, the fixed frame is slidably connected to the inside of the square column, the outer side of the square column is fixedly connected to a retaining ring, the outer side of the square column is fixedly connected to a cleaning frame, the cleaning frame contacts the inner wall of the drying barrel, the outer side of the square column is provided with a spring, and the cleaning frame can scrape and clean the inner wall of the drying barrel.

[0010] Preferably, one end of the spring is fixedly connected to the fixing frame, and the other end of the spring is fixedly connected to the retaining ring, and the spring can support the retaining ring through elastic force.

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

[0012] 1. The utility model adds a drying barrel, a heat exchange tube and a guide tube and other structures inside the drying box. In the process of drying the airflow, the airflow can be blown to the drying barrel through the guide tube, and then the moisture inside the airflow is frozen and dried by the supercooled drying barrel, thereby effectively avoiding the blockage of the pipeline caused by the flow of the airflow inside the drying tube, and effectively ensuring the drying efficiency of the airflow.

[0013] 2. The utility model adds structures such as a fixing frame, a cleaning frame and a square column inside the drying box. When the drying barrel dries the airflow, the cleaning frame can be driven to press against the inner wall of the drying barrel by the elastic force of the spring, and the drying barrel can be cleaned by the rotation of the drying barrel, which can ensure that the airflow is in direct contact with the drying barrel at all times to ensure the heat exchange efficiency, thereby further ensuring the drying efficiency of the airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of the utility model is three-dimensional Figure 1 ;

[0015] Figure 2 The overall structure of the utility model is three-dimensional Figure 2 ;

[0016] Figure 3 For the utility model Figure 1 A three-dimensional cross-sectional view of

[0017] Figure 4 For the utility model Figure 3 A three-dimensional diagram of a drying barrel;

[0018] Figure 5 For the utility model Figure 3 A three-dimensional diagram of a flow guide tube;

[0019] Figure 6 For the utility model Figure 3 A-section structure enlarged view.

[0020] In the figure: 1. Drying box; 2. Bracket; 3. Delivery pipe; 4. Exhaust pipe; 5. Fixed frame; 6. Cleaning mechanism; 7. Connecting shaft; 8. Drying barrel; 9. Motor; 10. Heat exchange tube; 11. Flow guide tube; 12. Waist hole; 61. Square column; 62. Retaining ring; 63. Cleaning frame; 64. Spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 A carbon dioxide cryogenic dryer comprises a drying box 1, a bracket 2 is fixedly connected to the lower end of the drying box 1, a delivery pipe 3 is installed on the right end of the drying box 1 through bolts, an exhaust pipe 4 is fixedly installed on the upper end of the drying box 1, a fixing frame 5 is fixedly connected to the left part of the inner wall of the drying box 1, a cleaning mechanism 6 is arranged on the fixing frame 5, a connecting shaft 7 is installed inside the right end of the drying box 1 through a bearing, a drying barrel 8 is fixedly connected to one end of the connecting shaft 7 located inside the drying box 1, a heat exchange tube 10 is fixedly installed inside the drying box 1, and a guide pipe 11 is fixedly connected inside the drying box 1.

[0023] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5A motor 9 is fixedly installed at the right end of the drying box 1. The output shaft of the motor 9 is fixedly connected to the connecting shaft 7. The motor 9 can rotate with the connecting shaft 7. The heat exchange tube 10 is in contact with the drying barrel 8. A plurality of evenly distributed waist holes 12 are opened on the outside of the drying barrel 8. The waist holes 12 can increase the heat exchange area of ​​the drying barrel 8. The guide pipe 11 is in contact with the conveying pipe 3. The outlet of the guide pipe 11 is located inside the drying barrel 8 and tilted downward by 45°. The guide pipe 11 is fixedly connected to the fixing frame 5. The guide pipe 11 can blow the airflow to the bottom of the inner wall of the drying barrel 8.

[0024] See also Figure 1 , Figure 3 , Figure 6 The cleaning mechanism 6 includes a square column 61, the square column 61 is slidably connected inside the fixed frame 5, a retaining ring 62 is fixedly connected to the outside of the square column 61, a cleaning frame 63 is fixedly connected to the outside of the square column 61, the cleaning frame 63 contacts the inner wall of the drying barrel 8, a spring 64 is provided on the outside of the square column 61, the cleaning frame 63 can scrape and clean the inner wall of the drying barrel 8, one end of the spring 64 is fixedly connected to the fixed frame 5, and the other end of the spring 64 is fixedly connected to the retaining ring 62, and the spring 64 can support the retaining ring 62 by elastic force.

[0025] The specific implementation process of the utility model is as follows: when in use, the airflow enters the interior of the guide tube 11 through the delivery tube 3, and the airflow is blown to the interior of the drying barrel 8 after passing through the guide tube 11. The drying barrel 8 is cooled by the heat exchange tube 10, and the moisture inside the airflow can be frozen by low temperature. After the moisture inside the airflow is frozen, the airflow can be dried, and the dried airflow can be discharged through the exhaust pipe 4;

[0026] At the same time, the motor 9 is started, and the motor 9 drives the drying barrel 8 to rotate through the connecting shaft 7. During the rotation of the drying barrel 8, the spring 64 pushes the cleaning frame 63 against the inner wall of the drying barrel 8 through elastic force, so that the rotating drying barrel 8 can be cleaned to avoid a large amount of ice freezing inside the drying barrel 8, thereby effectively improving the drying efficiency of the airflow.

[0027] 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. A carbon dioxide cryogenic dryer, comprising a drying box (1), characterized in that: The lower end of the drying box (1) is fixedly connected to a bracket (2), the right end of the drying box (1) is installed with a delivery pipe (3) by bolts, the upper end of the drying box (1) is fixedly installed with an exhaust pipe (4), the left part of the inner wall of the drying box (1) is fixedly connected to a fixing frame (5), and a cleaning mechanism (6) is arranged on the fixing frame (5), a connecting shaft (7) is installed inside the right end of the drying box (1) through a bearing, and one end of the connecting shaft (7) located inside the drying box (1) is fixedly connected to a drying barrel (8), a heat exchange pipe (10) is fixedly installed inside the drying box (1), and a guide pipe (11) is fixedly connected inside the drying box (1).

2. A carbon dioxide cryogenic dryer according to claim 1, characterized in that: A motor (9) is fixedly mounted on the right end of the drying box (1), and an output shaft of the motor (9) is fixedly connected to the connecting shaft (7).

3. A carbon dioxide cryogenic dryer according to claim 1, characterized in that: The heat exchange tube (10) is in contact with the drying barrel (8), and a plurality of evenly distributed waist holes (12) are provided on the outer side of the drying barrel (8).

4. A carbon dioxide cryogenic dryer according to claim 1, characterized in that: The guide pipe (11) is in contact with the conveying pipe (3), the outlet of the guide pipe (11) is located inside the drying barrel (8) and is inclined downward at 45 degrees, and the guide pipe (11) is fixedly connected to the fixing frame (5).

5. A carbon dioxide cryogenic dryer according to claim 1, characterized in that: The cleaning mechanism (6) comprises a square column (61), the interior of the fixed frame (5) is slidably connected to the square column (61), the outer side of the square column (61) is fixedly connected to a retaining ring (62), the outer side of the square column (61) is fixedly connected to a cleaning frame (63), the cleaning frame (63) is in contact with the inner wall of the drying barrel (8), and a spring (64) is provided on the outer side of the square column (61).

6. A carbon dioxide cryogenic dryer according to claim 5, characterized in that: One end of the spring (64) is fixedly connected to the fixing frame (5), and the other end of the spring (64) is fixedly connected to the retaining ring (62).

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