Air intake and exhaust system and cleaning station using same
By adopting an intake and exhaust system in the cleaning station, using the combined design of the central air inlet passage and the deflector, efficient drying inside the hopper is achieved; at the same time, the drying efficiency outside the hopper is improved through the spiral hot air flow, which solves the problem of slow drying rate inside the hopper and improves production efficiency.
Patent Information
- Application Number
- CN202421660192.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-07-12
AI Technical Summary
When existing cleaning stations are drying, the drying rate inside the hopper is slower, resulting in lower production efficiency.
An inlet and exhaust system is adopted, including a drying sequential unit inside the barrel and a drying sequential unit outside the barrel. The drying cycling unit in the barrel realizes vertical drop and reflux of hot air through the central air inlet passage and the deflector, and the drying cycling unit outside the barrel improves the drying efficiency outside the hopper through a spiral hot air flow.
It improves the drying rate of the hopper and effectively improves production efficiency. At the same time, it is simple in structure, low in cost and easy to achieve.
Smart Images
Figure CN222773723U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cleaning station, which is particularly suitable for cleaning barrels in wet granulators, boiling granulators, coating machines and mixers in the pharmaceutical field, and specifically relates to an air intake and exhaust system and a cleaning station using the air intake and exhaust system, belonging to the field of pharmaceutical equipment. Background Art
[0002] Pharmaceutical equipment has been gradually improved with the development of the pharmaceutical industry. In recent years, pharmaceutical production has put forward more requirements on production equipment. In the process of drug production, a very important process is the cleaning of equipment, especially when "changing batches" and "clearing the site".
[0003] The traditional cleaning method is to disassemble the parts of the equipment to be cleaned and rinse them manually or install interfaces at the designated positions of the equipment, manually connect the hoses and manually open or close the cleaning valves, that is, the preparation of the cleaning water needs to be done manually. With the rapid development of the pharmaceutical industry, pharmaceutical equipment has also made a lot of improvements in cleaning, and the traditional manual cleaning has been replaced by the automatic control CIP cleaning station.
[0004] The fully automatic cleaning station is mainly used for cleaning, drying and cooling IBC turnover barrels, mixing barrels and other containers of different specifications. For the cleaning method of the cleaning station, liquid is generally used to clean the hopper. The brush-type nozzle and 360-degree rotatable and retractable cleaning ball ensure that the barrel is cleaned thoroughly without residue. However, its fundamental purpose is to remove dirt adhering to the equipment. The liquid cleaning process generally requires a combination of kinetic energy, thermal energy and chemical energy.
[0005] After the liquid is washed, the hopper can also be dried. When drying the hopper (or barrel), the cleaning station usually has two air inlet systems, one is at the feed port in the middle of the hopper, and is arranged coaxially with the hopper; the other is two air inlets are arranged outside the feed port, and the two air inlets are perpendicular to the central axis of the hopper. Since the heat energy of the air inlet system in the hopper is limited by the shape of the hopper, the heat energy will collide and interfere with each other, resulting in low heat energy circulation efficiency, which in turn leads to a slow drying rate inside the hopper, affecting production efficiency.
[0006] In summary, in the existing cleaning station, when drying, there is a problem that the drying rate inside the hopper is slow, resulting in low production efficiency. Utility Model Content
[0007] The purpose of the utility model is to solve the problem that the drying rate inside the hopper is slow during drying in the existing cleaning station, resulting in low production efficiency. Further, an air intake and exhaust system and a cleaning station using the air intake and exhaust system are provided.
[0008] The technical scheme of the utility model is: an air intake and exhaust system includes a main air intake pipe, a drying cycle unit in a barrel and a drying cycle unit outside the barrel, the drying cycle unit in the barrel is installed on the upper part of the cleaning machine body, wherein the drying cycle unit in the barrel includes a central air intake channel, an exhaust pipe and a guide plate, the central air intake channel is vertically installed on the upper part of the cleaning machine body, and the upper part of the central air intake channel is connected to the main air intake pipe of the external heat source, the lower part of the central air intake channel extends into the interior of the cleaning machine body and is located directly above the barrel, the guide plate is installed at the lower end of the central air intake channel, and the exhaust pipe is installed on the upper part of the cleaning machine body and communicated with the interior of the cleaning machine body;
[0009] The material barrel external drying circulation unit includes two air inlet channels, which are installed on the inner shell of the cleaning machine body and a heat source is introduced into the material barrel A in a spiral shape to achieve external drying of the material barrel A.
[0010] Furthermore, a gap is left between the lower end surface of the guide plate and the upper end surface of the barrel.
[0011] Furthermore, the guide plate is an umbrella-shaped annular plate, and the outer diameter of the guide plate is larger than the diameter of the barrel hole.
[0012] Preferably, the air inlet end of the exhaust pipe is located directly above the barrel A.
[0013] Furthermore, the exhaust pipe includes a cylindrical pipe and an air outlet pipe, the cylindrical pipe is coaxially sleeved on the central air inlet channel, the air outlet pipe is connected to the cylindrical pipe, and the axis of the air outlet pipe is arranged perpendicular to the axis of the cylindrical pipe.
[0014] Furthermore, the two air inlet channels include a first air inlet pipe and a second air inlet pipe, which are symmetrically installed on the left and right sides of the barrel respectively, and the air outlets of the first air inlet pipe and the second air inlet pipe are arranged obliquely and toward the circumferential tangent of the barrel.
[0015] Furthermore, the rotation direction of the airflow formed by the spiral heat sources of the two air inlet channels is opposite to the rotation direction of the barrel A.
[0016] Furthermore, the upper parts of the first air inlet pipe and the second air inlet pipe are connected to the heat source, and the lower parts of the first air inlet pipe and the second air inlet pipe extend vertically downward and are installed on the inner shell of the cleaning machine body.
[0017] Furthermore, the external drying circulation unit of the material barrel also includes a pneumatic damper and a lower air inlet duct. The pneumatic damper is installed at the upper end of the cleaning machine body, and one end of the pneumatic damper is connected to the main air inlet duct, and the other end of the pneumatic damper is connected to the middle part of the lower air inlet duct. The two ends of the lower air inlet duct are respectively connected to the upper part of the first air inlet duct and the second air inlet duct to realize air supply to the first air inlet duct and the second air inlet duct.
[0018] The present invention also provides a cleaning station, which comprises an air inlet and exhaust system, wherein the air inlet and exhaust system is installed on a cleaning machine body.
[0019] Compared with the prior art, the utility model has the following effects:
[0020] 1. The utility model provides an air intake and exhaust system, which is mainly used to dry the wet hopper after the hopper is cleaned with liquid. The system dries the hopper by introducing hot air. Two drying modes are specifically adopted:
[0021] The first type: drying inside the hopper;
[0022] After the heat source passes through the central air inlet channel 2 and passes through the guide plate 1 vertically downward, it passes through the barrel hole B of the barrel A and enters the barrel A. At this time, the hot air spreads in the barrel A and contacts the inner wall of the hopper, and flows downward with the hot air flow until it is discharged at the bottom outlet of the hopper. The discharged hot air is blocked by the bottom end surface of the cleaning machine body and flows back upward along the outer wall of the hopper. The gas after the backflow is discharged under the suction of the exhaust pipe 6. The drying of the inside of the hopper is completed.
[0023] The temperature of the gas after the backflow is lower than the inlet temperature, but it can also play a pre-drying role, reducing the drying time of the outer wall of the hopper, saving heat source energy and improving drying efficiency.
[0024] Second type: drying inside the hopper:
[0025] The pneumatic damper 4 is opened, and the heat source enters the lower air inlet pipe 7. The airflow in the lower air inlet pipe 7 enters the first air inlet pipe 31 and the second air inlet pipe 32. Under the action of the first air inlet pipe 31 and the second air inlet pipe 32, the airflow rotates in a spiral shape. When the rotating airflow is opposite to the rotation direction of the hopper, the relative rotation speed between the airflow and the outer wall of the hopper is increased, thereby improving the drying of the outside of the hopper.
[0026] The utility model improves the drying rate of the cleaning station under the joint action of the two drying modes, thereby effectively improving the production efficiency.
[0027] 2. The utility model has a simple structure, does not interfere with the cleaning tools and processes of the cleaning station, is easy to implement, and has low cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is the front view of the utility model. Figure 2 yes Figure 1 Side view of. Figure 3 This is a schematic diagram of the air flow distribution when air enters the middle of the hopper during drying inside the hopper. Figure 4 This is a schematic diagram of the air flow distribution when the outside of the hopper is dried and air is introduced into the outside of the hopper. Figure 5 It is a schematic diagram of the overall structure of the present invention, which is convenient for expressing the connection relationship and position relationship of the first air inlet pipe 31. DETAILED DESCRIPTION
[0029] Specific implementation method 1: Combination Figures 1 to 5 The present embodiment is described. The present embodiment comprises a main air inlet pipe 5, a drying cycle unit in a barrel and a drying cycle unit outside a barrel. The drying cycle unit in a barrel is installed at the upper part of the cleaning machine body, wherein the drying cycle unit in a barrel comprises a central air inlet channel 2, an exhaust pipe 6 and a guide plate 1. The central air inlet channel 2 is vertically installed at the upper part of the cleaning machine body, and the upper part of the central air inlet channel 2 is connected to the main air inlet pipe 5 of the external heat source, the lower part of the central air inlet channel 2 extends into the interior of the cleaning machine body and is located directly above the barrel A, the guide plate 1 is installed at the lower end of the central air inlet channel 2, and the exhaust pipe 6 is installed at the upper part of the cleaning machine body and communicates with the interior of the cleaning machine body;
[0030] The material barrel external drying circulation unit includes two air inlet channels, which are installed on the inner shell of the cleaning machine body and a heat source is introduced into the material barrel A in a spiral shape to achieve external drying of the material barrel A.
[0031] The present embodiment provides an air intake and exhaust system with good drying effect and energy saving. The air intake and exhaust system has a simple structure and shortens the drying time of the hopper by preheating the outer wall of the hopper during the drying sequence unit in the barrel. A spiral hot air flow is arranged outside the hopper so that the air flow collides with the outer wall of the hopper, further improving the drying efficiency.
[0032] Specific implementation method 2: Combination Figure 1 and Figure 3 To explain this embodiment, a gap is left between the lower end surface of the guide plate 1 and the upper end surface of the barrel A in this embodiment.
[0033] The gap is set in this way, so that it is convenient to apply to hoppers of different shapes and sizes for drying, which expands the scope of application and avoids the waste of heat source. The other components and connection relationships are the same as those of the first specific embodiment.
[0034] In actual use of this embodiment, a gap of preferably 2-5 cm is left between the lower end surface of the guide plate 1 and the upper end surface of the barrel A, which can ensure that it is suitable for hoppers of different specifications and that the reverse airflow does not flow back into the central air inlet channel 2.
[0035] Specific implementation method three: Combination Figure 1 To explain this embodiment, the guide plate 1 of this embodiment is an umbrella-shaped annular plate, and the outer diameter of the guide plate 1 is larger than the diameter of the barrel hole B of the barrel A.
[0036] In this way, the umbrella-shaped annular plate can ensure that the reverse airflow has a blocking and guiding effect on the reverse airflow when it flows to the exhaust pipe 6, and prevents the reverse airflow from flowing into the gap between the lower end surface of the guide plate 1 and the upper end surface of the barrel A, thereby avoiding the short-circuit effect. The other components and connection relationships are the same as those of the second specific embodiment.
[0037] Specific implementation method four: Combination Figure 1 To explain this embodiment, the air inlet end of the exhaust pipe 6 of this embodiment is located just above the barrel A.
[0038] This arrangement facilitates the backflow of hot air to be discharged directly at the top, and the airflow is quickly discharged under the impetus of the airflow on the one hand, and the combined effect of the rising hot air and the pressure difference and suction between the cleaning station and the outside air pressure on the other hand, thereby improving the drying efficiency inside the hopper. The other components and connection relationships are the same as those of the third specific implementation method.
[0039] Specific implementation method five: Combination Figure 1 To illustrate this embodiment, the exhaust duct 6 of this embodiment includes a cylindrical tube 6-1 and an air outlet duct 6-2. The cylindrical tube 6-1 is coaxially mounted on the central air inlet channel 2, the air outlet duct 6-2 is connected to the cylindrical tube 6-1, and the axis of the air outlet duct 6-2 is arranged perpendicular to the axis of the cylindrical tube 6-1.
[0040] In this way, in order to ensure that the central air inlet channel 2 and the exhaust pipe 6 maintain a relatively independent space, each of which realizes the corresponding function, that is, air intake and exhaust, the cylindrical tube 6-1 is nested with the central air inlet channel 2, which not only saves space, but also ensures that the reverse airflow can be sucked away in the circumferential direction. The other components and connection relationships are the same as any one of the specific embodiments one to four.
[0041] In addition, the cylindrical tube 6-1 can also serve as a buffer space for the reverse airflow, which is directly discharged through the air outlet pipe 6-2 after buffering, thereby avoiding interference between airflows and improving exhaust efficiency.
[0042] Specific implementation method six: Combination Figure 4 To explain this embodiment, the two air inlet channels of this embodiment include a first air inlet pipe 31 and a second air inlet pipe 32, which are symmetrically installed on the left and right sides of the barrel A, respectively, and the air outlets of the first air inlet pipe 31 and the second air inlet pipe 32 are arranged obliquely and face the circumferential tangent of the barrel A. Such an arrangement facilitates the formation of a rotating airflow, and by setting the inclination angle of the first air inlet pipe 31 and the second air inlet pipe 32, the number of turns and density of the spiral airflow are adjusted, ensuring that the best drying effect is achieved while achieving high-efficiency drying. The other components and connection relationships are the same as any one of the specific embodiments one to five.
[0043] In this embodiment, the inclination angle of the first air inlet pipe 31 and the second air inlet pipe 32 is preferably between 20-40 degrees, which can be adjusted according to the actual situation of the hopper. In actual use, the first air inlet pipe 31 and the second air inlet pipe 32 can be installed as an angle-adjustable air duct, and the angle adjustment method can be a hinge seat. It is convenient for drying hoppers of different specifications, materials and sizes.
[0044] Specific implementation method seven: Combination Figure 4 To illustrate this embodiment, the rotation direction of the airflow formed by the spiral heat sources of the two air inlet channels of this embodiment is opposite to the rotation direction of the barrel A.
[0045] Such a configuration facilitates the airflow to rotate, and the rotating airflow flows in the opposite direction to the hopper rotation direction to increase the relative speed, so that the outside of the hopper is quickly dried. This drying method can greatly shorten the hopper drying time and save a lot of energy consumption. The other components and connection relationships are the same as any one of the specific embodiments one to six.
[0046] Specific implementation method eight: Combination Figure 4 To illustrate this embodiment, the upper parts of the first air inlet duct 31 and the second air inlet duct 32 of this embodiment are connected to the heat source, and the lower parts of the first air inlet duct 31 and the second air inlet duct 32 extend vertically downward and are installed on the inner shell of the cleaning machine body.
[0047] Such arrangement facilitates spiral drying from the upper part to the lower part. The other components and connection relationships are the same as any one of the specific implementation modes 1 to 7.
[0048] Specific implementation method nine: Combination Figure 4 To illustrate this embodiment, the external drying circulation unit of the material barrel of this embodiment also includes a pneumatic damper 4 and a lower air inlet duct 7. The pneumatic damper 4 is installed at the upper end of the cleaning machine body, and one end of the pneumatic damper 4 is connected to the main air inlet duct 5, and the other end of the pneumatic damper 4 is connected to the middle part of the lower air inlet duct 7. The two ends of the lower air inlet duct 7 are respectively connected to the upper parts of the first air inlet duct 31 and the second air inlet duct 32 to realize the air supply to the first air inlet duct 31 and the second air inlet duct 32.
[0049] With such arrangement, the pneumatic damper 4 can flexibly control the drying of the outside of the hopper, and the left and right ends of the lower air inlet pipe 7 facilitate the airflow to be led into the first air inlet pipe 31 and the second air inlet pipe 32 to form two spiral airflows. The other components and connection relationships are the same as any one of the specific embodiments 1 to 8.
[0050] Specific implementation method ten: Combination Figures 1 to 4 To explain this embodiment, the cleaning station of this embodiment includes an air intake and exhaust system, which is installed on the cleaning machine body. Other components and connection relationships are the same as any one of the specific embodiments 1 to 9.
[0051] Combination Figures 1 to 5 Explain the working principle of the utility model:
[0052] During drying, air is first introduced through the external main air inlet pipe, and the pneumatic damper 4 is closed. All hot air enters the interior of the hopper A through the central air inlet pipe 2, and the water inside the hopper after cleaning is quickly dried. Because all hot air flows into the interior of the hopper A, the interior of the hopper A can be dried quickly, and after the air inside the hopper flows out through the lower valve at the bottom of the hopper, there is an air guide plate 1 on the middle air inlet pipe 2, and the air guide plate 1 prevents the exhaust pipe 6 from short-circuiting with the air from the central air inlet pipe 2 in the exhaust chamber.
[0053] The air discharged from the exhaust duct 6 is the air dried inside the hopper and is sucked into the exhaust duct 6 through the outside of the hopper. This air flow circulation method can greatly save drying time and also save the power and energy consumption of the hot air cabinet. The hot air after passing through the inside of the hopper can also preheat the outer wall of the hopper, reducing the drying time of the outer wall and saving energy consumption.
[0054] After the inside of the hopper is dried, after a period of time, the pneumatic damper 4 is opened to allow the wind to enter the air inlet channel through the lower air inlet pipe 7. The first air inlet pipe 31 and the second air inlet pipe 32 of the air inlet channel are arranged on the tangent of the cleaning chamber circle. Through this arrangement, the airflow is rotated, and the direction of the rotating airflow is opposite to the direction of rotation of the hopper to increase the relative speed, so that the outside of the hopper is quickly dried. This drying method can greatly shorten the drying time of the hopper and save a lot of energy consumption.
[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An air intake and exhaust system, characterized in that: It comprises a main air inlet pipe (5), a drying cycle unit inside the material barrel and a drying cycle unit outside the material barrel. The drying cycle unit inside the material barrel is installed on the upper part of the cleaning machine body, wherein the drying cycle unit inside the material barrel comprises a central air inlet channel (2), an exhaust pipe (6) and a guide plate (1). The central air inlet channel (2) is vertically installed on the upper part of the cleaning machine body, and the upper part of the central air inlet channel (2) is connected to the main air inlet pipe (5) of the external heat source, and the lower part of the central air inlet channel (2) extends into the interior of the cleaning machine body and is located directly above the material barrel (A). The guide plate (1) is installed at the lower end of the central air inlet channel (2), and the exhaust pipe (6) is installed on the upper part of the cleaning machine body and communicates with the interior of the cleaning machine body. The material barrel external drying circulation unit comprises two air inlet channels, which are mounted on the inner shell of the cleaning machine body and are connected to the material barrel (A) through a heat source in a spiral shape to achieve external drying of the material barrel (A).
2. An air intake and exhaust system according to claim 1, characterized in that: A gap is left between the lower end surface of the guide plate (1) and the upper end surface of the barrel (A).
3. An air intake and exhaust system according to claim 2, characterized in that: The guide plate (1) is an umbrella-shaped annular plate, and the outer diameter of the guide plate (1) is larger than the diameter of the barrel hole (B) of the barrel (A).
4. An air intake and exhaust system according to claim 3, characterized in that: The air inlet end of the exhaust pipe (6) is located just above the barrel (A).
5. The air intake and exhaust system according to claim 4, characterized in that: The exhaust pipe (6) comprises a cylindrical pipe (6-1) and an air outlet pipe (6-2); the cylindrical pipe (6-1) is coaxially sleeved on the central air inlet channel (2); the air outlet pipe (6-2) is connected to the cylindrical pipe (6-1), and the axis of the air outlet pipe (6-2) is arranged perpendicular to the axis of the cylindrical pipe (6-1).
6. An air intake and exhaust system according to claim 5, characterized in that: The two air inlet channels comprise a first air inlet pipe (31) and a second air inlet pipe (32), the first air inlet pipe (31) and the second air inlet pipe (32) being symmetrically mounted on the left and right sides of the barrel (A), respectively, and the air outlets of the first air inlet pipe (31) and the second air inlet pipe (32) being arranged at an angle and facing the circumferential tangent of the barrel (A).
7. An air intake and exhaust system according to claim 6, characterized in that: The airflow formed by the spiral heat sources of the two air inlet channels rotates in a direction opposite to the rotation direction of the barrel (A).
8. An air intake and exhaust system according to claim 7, characterized in that: The upper parts of the first air inlet pipe (31) and the second air inlet pipe (32) are connected to the heat source, and the lower parts of the first air inlet pipe (31) and the second air inlet pipe (32) extend vertically downward and are installed on the inner shell of the cleaning machine body.
9. An air intake and exhaust system according to claim 8, characterized in that: The drying circulation unit outside the barrel also includes a pneumatic damper (4) and a lower air inlet pipe (7). The pneumatic damper (4) is installed at the upper end of the cleaning machine body, and one end of the pneumatic damper (4) is connected to the main air inlet pipe (5), and the other end of the pneumatic damper (4) is connected to the middle part of the lower air inlet pipe (7). The two ends of the lower air inlet pipe (7) are respectively connected to the upper parts of the first air inlet pipe (31) and the second air inlet pipe (32) to realize air supply to the first air inlet pipe (31) and the second air inlet pipe (32).
10. A cleaning station, characterized in that: It comprises the air intake and exhaust system as claimed in claim 9, and the air intake and exhaust system is installed on the cleaning machine body.