A multi-stage purification refrigeration-type drier

Abstract

The utility model relates to the technical field of purification refrigeration type drying machine, especially a multistage purification refrigeration type drying machine, including box and door, drying box and heat exchanger are linked through air inlet pipe no.

Description

Technical Field

[0001] This utility model relates to the technical field of purification refrigerated dryers, specifically a multi-stage purification refrigerated dryer. Background Technology

[0002] Multi-stage refrigerated air dryers are core equipment in the field of compressed air purification. They are mainly used to remove impurities such as moisture, oil mist, and dust from compressed air, providing dry and clean compressed air for industrial production (such as pneumatic equipment, precision instruments, food processing, etc.). The core working logic is a combination of "refrigeration and dehumidification + multi-stage purification and filtration".

[0003] However, in existing technologies, after purification, airflow needs to be discharged before the sample is drawn to the detection point for testing. This makes it impossible to intuitively understand the drying effect in a short period of time, which may cause environmental pollution. Furthermore, the angle of the observation window structure cannot be adjusted according to the operator's height and habits, resulting in poor applicability. Utility Model Content

[0004] The purpose of this invention is to solve the problems of the device requiring airflow to be discharged before being drawn to the detection point, which makes it impossible to intuitively understand the drying effect in a short period of time and may cause environmental pollution, and the inability to adjust the angle of the observation window structure according to the height and habits of the operator, resulting in poor applicability. Therefore, a multi-stage purification freeze dryer is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Design a multi-stage purification refrigerated dryer, including a housing and doors. Doors are installed on both the left and right sides of the front end of the housing. A drying chamber and a heat exchanger are fixedly connected to the left and right sides of the upper end of the housing, respectively. The drying chamber and the heat exchanger are connected by an air inlet pipe. An air inlet pipe is fixedly connected to the left end of the drying chamber. A connecting elbow is installed on the lower right side of the heat exchanger. A comparison component is installed in the middle of the outer wall of the second air inlet pipe, and rotating components are installed on both sides of the outer wall of the second air inlet pipe.

[0006] Preferably, the comparison component includes an intake observation window and a horizontal tube. The horizontal tube is located on the rear side of the outer wall of the second intake pipe. An exhaust observation window is fixedly connected to the upper end of the horizontal tube. A comparison card is fixedly connected to the rear side of the outer wall of the horizontal tube. The intake observation window is fixedly connected to the front of the outer wall of the second intake pipe. The observable range of the intake observation window includes the front and the top. The observable range of the exhaust observation window is the top.

[0007] This feature allows for direct observation of the color changes in the airflow before and after condensation drying through the intake and exhaust observation windows at the two points on the intake pipe. Additionally, a color comparison card can be used to visually observe the specific color contrast. Furthermore, dust sensors can be installed inside the pipe to provide a clear understanding of the condensation drying effect.

[0008] Preferably, a drain pipe is installed at the lower center of the heat exchanger, and the lower left side of the heat exchanger is fixedly connected to one end of the exhaust pipe.

[0009] This feature: By designing the heat exchanger, the internal channels are filled with a low-temperature condensate. When the airflow enters the heat exchanger, it exchanges heat with the low-temperature condensate, cooling the water vapor in the air to below zero temperature. The water vapor in the air then condenses into liquid water, achieving secondary purification and drying.

[0010] Preferably, the rotating assembly includes a cylinder and a channel. The two cylinders are located on both sides of the outer wall of the second intake pipe. The inner wall of the cylinder is rotatably connected to the second intake pipe through a bearing. The outer inner wall of the cylinder is equidistantly machined with multiple air holes. The outer wall of the cylinder is rotatably connected to a collar through a sealed bearing. A connecting pipe is fixedly connected to the center of the front end of the collar. The end of the connecting pipe on the right side is fixedly connected to the other side of the exhaust pipe.

[0011] This feature: Through the design of the horizontal tube, cylinder and intake pipe II, the horizontal tube can be pulled to rotate the cylinders on both sides, so that the horizontal tube rotates from the rear side of intake pipe II to the top. At this time, the exhaust observation window, which was originally facing upward, becomes facing forward. The exhaust observation window, which is now facing forward, can also be used in conjunction with the intake observation window for simultaneous observation, and the angle can be adjusted according to the operator.

[0012] Preferably, the plurality of channels are respectively fixed on the lower inner side of the outer wall of the two cylindrical sides, and the inner wall of the channel is slidably connected to a round rod, and the end of the round rod is fixedly connected to the air intake pipe II through a bracket.

[0013] Preferably, the heat exchanger is connected to the refrigeration system on both the upper and lower rear ends via condensate connecting pipes, and the refrigeration system is installed on the left side of the inner wall of the housing.

[0014] Preferably, a steam generator is installed at the center of the lower part of the inner wall of the housing, and the right side of the steam generator is connected to an air pump through a pipe.

[0015] Preferably, the outer wall of the steam generator is fixedly connected to the heat exchange bend on the inner wall of the drying box via a steam connecting pipe.

[0016] The multi-stage purification freeze dryer proposed in this utility model has the following advantages: Through the coordination of the exhaust pipe, connecting pipe, cylinder, comparison card, air intake observation window, and exhaust observation window, the airflow can be delivered through the exhaust pipe to the connecting pipe on the right and the inside of the cylinder. The purified and dried airflow can then enter the inside of the horizontal pipe through the air holes on the surface of the cylinder. At this point, the color change of the airflow before and after condensation drying can be directly observed through the air intake observation window and the exhaust observation window at the two points of the air intake pipe. At the same time, the specific color comparison can be visually observed through the color comparison card. It is even possible to install a dust sensor inside the pipe to achieve a direct understanding of the specific effect of condensation drying. This effectively avoids the problem of environmental pollution that may occur if the drying effect cannot be visually understood in a short period of time due to the need to exhaust the airflow and then extract it to the detection point for testing. By coordinating the horizontal pipe, intake pipe II, cylinder, connecting pipe, intake observation window, and exhaust observation window, the operator can observe simultaneously with the intake observation window when standing up, as shown in the diagram, with the exhaust observation window on the horizontal pipe facing upwards. When the operator is seated or has limited height, they can pull the horizontal pipe to rotate the cylinders on both sides, causing the horizontal pipe to rotate from the rear of intake pipe II to the top. At this time, the exhaust observation windows that were originally facing upwards now face forward, and can also be observed simultaneously with the intake observation window. In this way, the angle of the observation window structure can be effectively adjusted according to the operator's height and habits to avoid poor applicability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a partial cross-sectional view of the present invention. Figure 3 This utility model Figure 2 A schematic diagram of the structure viewed from below on the left side; Figure 4 This utility model Figure 1 A partial structural diagram of the second part of the central air intake pipe; Figure 5 This utility model Figure 4 A schematic diagram of the rear exterior structure; Figure 6 This is a schematic diagram of the front sectional view of the present invention; Figure 7 This utility model Figure 6 A schematic diagram of the structure at point I in the diagram.

[0018] In the diagram: 1. Box body, 2. Box door, 3. Rotating assembly, 301. Collar, 302. Cylinder, 303. Connecting pipe, 304. Round rod, 305. Channel, 306. Air hole, 4. Comparison assembly, 401. Air inlet observation window, 402. Air outlet observation window, 403. Horizontal pipe, 404. Comparison card, 5. Air inlet pipe one, 6. Drying oven, 7. Air inlet pipe two, 8. Heat exchanger, 9. Connecting elbow, 10. Exhaust pipe, 11. Air pump, 12. Steam generator, 13. Refrigeration system, 14. Steam connecting pipe, 15. Drain pipe, 16. Refrigerant connecting pipe. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings: See attached document Figure 1-7 In this embodiment, a multi-stage purification refrigerated dryer includes a housing 1 and doors 2. Doors 2 are installed on both the left and right sides of the front end of the housing 1. A drying chamber 6 and a heat exchanger 8 are fixedly connected to the left and right sides of the upper end of the housing 1, respectively. The drying chamber 6 and the heat exchanger 8 are connected by an air inlet pipe 2 7. The interior of the drying chamber 6 is equipped with heat exchange bends and filters. An air inlet pipe 1 5 is fixedly connected to the left end of the drying chamber 6. A connecting elbow 9 is installed on the lower right side of the heat exchanger 8. A comparison component 4 is installed in the middle of the outer wall of the air inlet pipe 2 7. Rotating components 3 are installed on both sides of the outer wall of the air inlet pipe 2 7. A drain pipe 15 is installed at the center of the lower end of the heat exchanger 8. The model of the heat exchanger 8 can be determined according to the specific application.

[0020] The lower left side of the heat exchanger 8 is fixedly connected to one end of the exhaust pipe 10. The upper and lower sides of the rear end of the heat exchanger 8 are connected to the refrigeration system 13 through the condensate connecting pipe 16. The refrigeration system 13 consists of a refrigeration unit and a liquid pump. The specific model can be determined according to the specific application. The refrigeration system 13 is installed on the left side of the inner wall of the box 1. A steam generator 12 is installed at the center of the lower inner wall of the box 1. The models of the steam generator 12 and the air pump 11 can be determined according to the specific application. The right side of the steam generator 12 is connected to the air pump 11 through a pipe. The outer wall of the steam generator 12 is fixedly connected to the heat exchange bend of the inner wall of the drying box 6 through the steam connecting pipe 14.

[0021] See attached document Figure 1-7 In this embodiment, the comparison component 4 includes an intake observation window 401 and a horizontal tube 403. The horizontal tube 403 is located on the rear side of the outer wall of the second intake pipe 7. An exhaust observation window 402 is fixedly connected to the upper end of the horizontal tube 403. A comparison card 404 is fixedly connected to the rear side of the outer wall of the horizontal tube 403. The intake observation window 401 is fixedly connected to the front of the outer wall of the second intake pipe 7. The intake observation window 401 allows observation from the front and the top. The observable range of the intake observation window 401 includes the front and the top. The observable range of the exhaust observation window 402 is the top. The exhaust observation window 402 can only be observed according to its orientation.

[0022] See attached document Figure 1-7 In this embodiment, the rotating assembly 3 includes a cylinder 302 and a channel 305. The two cylinders 302 are located on both sides of the outer wall of the second intake pipe 7. The inner wall of the cylinder 302 is rotatably connected to the second intake pipe 7 through a bearing. Multiple air holes 306 are equidistantly machined on the outer inner wall of the cylinder 302. The outer wall of the cylinder 302 is rotatably connected to the collar 301 through a sealing bearing. The cylinder 302 can rotate on the inner wall of the collar 301 while ensuring the sealing of the rotation. A connecting pipe 303 is fixedly connected to the center of the front end of the collar 301. The end of the right connecting pipe 303 is fixedly connected to the other side of the exhaust pipe 10. Multiple channels 305 are fixedly fixed on the lower inner side of the outer wall of the two cylinders 302. A round rod 304 is slidably connected to the inner wall of the channel 305. The channel 305 and the round rod 304 can limit the rotation range of the cylinder 302. The end of the round rod 304 is fixedly connected to the second intake pipe 7 through a bracket.

[0023] Working principle: When this multi-stage purification refrigerated dryer is needed, firstly, connect the overall structure piping to the external piping. For example, connect the air inlet pipe 5, drain pipe 15, and left-side connecting pipe 303 to the external piping. Then, inject the airflow to be dried and purified through air inlet pipe 5. At the same time, the air pump 11 needs to be started in advance so that the air pump 11 injects the steam generated by the steam generator 12 into the heat exchange bend inside the drying chamber 6, heating the inside of the drying chamber 6 to 40-60°C, causing oil mist and water vapor to condense into larger particles, which can be quickly intercepted by the filter inside the drying chamber 6, thus achieving the first stage of purification and drying treatment.

[0024] After the first stage of purification and drying is completed, the airflow can enter the interior of the heat exchanger 8 through the inlet pipe 7. At the same time, the pump inside the refrigeration system 13 injects the condensate processed by the refrigeration system into the interior of the heat exchanger 8 through the condensate connecting pipe 16, so that the channels inside the heat exchanger 8 are filled with the low-temperature condensate. After the airflow enters the heat exchanger 8, the airflow will exchange heat with the low-temperature condensate, so that the water vapor in the airflow is cooled to below zero temperature. The water vapor in the air condenses into liquid water to achieve the second stage of purification and drying, and then it is discharged through the bottom of the heat exchanger 8. The condensate can be returned to the refrigeration system 13 for recycling. Meanwhile, the condensed liquid water can be discharged to the external pipeline through the drain pipe 15.

[0025] The airflow after condensation and drying can be discharged through the exhaust pipe 10. The airflow can be transported through the exhaust pipe 10 to the connecting pipe 303 on the right and the inside of the cylinder 302. Through the air holes on the surface of the cylinder 302, the purified and dried airflow can enter the inside of the horizontal pipe 403. At this time, the color change of the airflow before and after condensation and drying can be directly observed through the air intake observation window 401 and the exhaust observation window 402 at the air intake pipe 27. At the same time, the specific color comparison can be observed intuitively through the color comparison card 404. Even a dust sensor can be installed inside the pipe to intuitively understand the specific effect of condensation and drying. This effectively avoids the problem of environmental pollution that may occur because the airflow needs to be discharged and then extracted to the detection point for testing, which makes it impossible to intuitively understand the drying effect in a short period of time.

[0026] Meanwhile, when observing, the operator can stand up and observe simultaneously with the intake observation window 401, with the exhaust observation window 402 facing upwards at the horizontal pipe 403. When the operator is seated or has limited height, they can pull the horizontal pipe 403 to rotate the cylinders 302 on both sides, causing the horizontal pipe 403 to rotate from the rear of the intake pipe 7 to the top. At this time, the exhaust observation window 402, which was originally facing upwards, becomes facing forward. The exhaust observation window 402, which is facing forward, can also be observed simultaneously with the intake observation window 401. In this way, the angle of the observation window structure can be effectively adjusted according to the operator's height and habits to avoid poor applicability.

[0027] Finally, the gas discharged through the horizontal pipe 403 can be discharged through the connecting pipe 303 on the left. Specifically, the control process in this case can be controlled by a PLC controller, which may include structures such as heat exchangers, refrigeration systems, and air pumps. The control content may include linkage, synchronous start and stop, and automatic control, etc.

[0028] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A multi-stage purification freeze dryer, comprising a housing (1) and doors (2), wherein doors (2) are installed on both the left and right sides of the front end of the housing (1), characterized in that: A drying chamber (6) and a heat exchanger (8) are fixedly connected to the upper left and right sides of the box (1), respectively. The drying chamber (6) and the heat exchanger (8) are connected by an air inlet pipe (7). An air inlet pipe (5) is fixedly connected to the left end of the drying chamber (6). A connecting elbow (9) is installed on the lower right side of the heat exchanger (8). A comparison component (4) is installed in the middle of the outer wall of the air inlet pipe (7). Rotating components (3) are installed on both sides of the outer wall of the air inlet pipe (7).

2. The multi-stage purification refrigerated dryer according to claim 1, characterized in that: The comparison component (4) includes an intake observation window (401) and a horizontal tube (403). The horizontal tube (403) is located on the rear side of the outer wall of the second intake pipe (7). An exhaust observation window (402) is fixedly connected to the upper end of the horizontal tube (403). A comparison card (404) is fixedly connected to the rear side of the outer wall of the horizontal tube (403). The intake observation window (401) is fixedly connected to the front of the outer wall of the second intake pipe (7). The observable range of the intake observation window (401) includes the front and the top. The observable range of the exhaust observation window (402) is the top.

3. The multi-stage purification refrigerated dryer according to claim 1, characterized in that: A drain pipe (15) is installed at the lower center of the heat exchanger (8), and the lower left side of the heat exchanger (8) is fixedly connected to one end of the exhaust pipe (10).

4. The multi-stage purification refrigerated dryer according to claim 1, characterized in that: The rotating assembly (3) includes a cylinder (302) and a channel (305). The two cylinders (302) are located on both sides of the outer wall of the second intake pipe (7). The inner wall of the cylinder (302) is rotatably connected to the second intake pipe (7) through a bearing. The outer inner wall of the cylinder (302) is equidistantly machined with a plurality of air holes (306). The outer wall of the cylinder (302) is rotatably connected to the collar (301) through a sealed bearing. The front end center of the collar (301) is fixedly connected to a connecting pipe (303). The end of the connecting pipe (303) on the right side is fixedly connected to the other side of the exhaust pipe (10).

5. The multi-stage purification freeze dryer according to claim 4, characterized in that: Multiple channels (305) are fixed on the lower inner side of the outer wall of the two cylindrical tubes (302). The inner wall of the channel (305) is slidably connected to a round rod (304), and the end of the round rod (304) is fixedly connected to the second air intake pipe (7) through a bracket.

6. The multi-stage purification refrigerated dryer according to claim 1, characterized in that: The heat exchanger (8) is connected to the refrigeration system (13) on both the upper and lower ends of its rear end through a refrigerant connecting pipe (16). The refrigeration system (13) is installed on the left side of the inner wall of the housing (1).

7. The multi-stage purification refrigerated dryer according to claim 1, characterized in that: A steam generator (12) is installed at the center of the lower part of the inner wall of the box (1), and the right side of the steam generator (12) is connected to the air pump (11) through a pipe.

8. The multi-stage purification freeze dryer according to claim 7, characterized in that: The outer wall of the steam generator (12) is fixedly connected to the heat exchange bend on the inner wall of the drying box (6) through a steam connecting pipe (14).

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