Rail transfer window

Abstract

The utility model provides a track delivery window, which belongs to the technical field of pharmaceutical equipment and comprises a delivery window box body, a delivery cavity is arranged on the lower portion of the delivery window box body, delivery ports are arranged on the front side and the rear side of the delivery cavity, a transmission track is arranged at the bottom of the delivery cavity, and a fan and a filter are arranged in the delivery window box body from top to bottom. An air return opening is formed in the side, close to the clean area, of the upper portion of the delivery window box. When the rail transfer window is used for continuously transferring materials, the materials enter the transfer rail in the transfer cavity through the transfer opening in the front side, and the materials are conveyed to the transfer opening in the rear side through the transfer rail. Airflow provided by the fan forms vertical one-way flow through the filter and is discharged through the transfer ports in the two sides, positive pressure is formed in the transfer cavity through airflow in the transfer cavity, and air in rooms on the two sides of the transfer window body is prevented from entering the transfer cavity through the transfer ports. The air return port introduces clean air from the clean area, and non-clean air is prevented from entering the transfer cavity.

Description

Technical Field

[0001] The utility model belongs to the technical field of pharmaceutical equipment, and more specifically relates to a track transfer window. Background Art

[0002] As an auxiliary equipment of clean room, the transfer window is mainly used for the transfer of small items between clean area and clean area, clean area and non-clean area, so as to reduce the number of times the clean room door is opened and minimize the pollution of the clean area. The transfer window is widely used in places that require air purification, such as micro-technology, biological laboratories, pharmaceutical factories, hospitals, food processing industry, LCD, and electronics factories.

[0003] The transfer window is usually installed between two rooms in the clean area where materials need to be transferred. When transferring materials through the transfer window, the "one open and one closed" rule of the inner and outer doors of the transfer window must be strictly followed. The two doors cannot be opened at the same time. Open the outer door to put the materials in, close the door first, then open the inner door to take the materials out, close the door, and repeat this cycle.

[0004] For continuous material transmission, if the cleanliness of the rooms on both sides of the transfer window is different, and there is a large pressure difference between the two rooms, such as one side is a clean area and the other side is a non-clean area. If a conventional transfer window is used, the gas in the high-pressure room will enter the transfer room of the transfer window due to the pressure difference, making it difficult to maintain the pressure in the high-pressure room. The excessive pressure in the transfer room will also cause the gas in the low-pressure room to flow back into the high-pressure room, causing serious air pollution incidents and affecting product production safety. Utility Model Content

[0005] The utility model aims to provide a track transfer window which can be used for continuous material transportation. The transfer window has the function of isolating the clean area from the non-clean area environment to ensure that the air on both sides of rooms with different clean levels does not penetrate each other.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a track transfer window, including a transfer window box body, a transfer cavity is provided at the lower part of the transfer window box body, transfer ports are provided on the front and rear sides of the transfer cavity, a transmission track is provided at the bottom of the transfer cavity from front to back, a fan and a filter are provided in the transfer window box body, the fan and the filter are arranged at the top of the transfer cavity from top to bottom, and a return air port is provided on the upper side of the transfer window box body close to the clean area.

[0007] In a possible implementation, observation windows are provided on the front and rear sides of the transfer cavity, and the transfer port is opened at the bottom of the observation window and is arranged corresponding to the two ends of the transfer track.

[0008] In one possible implementation, a horizontal adjustment plate is provided above the transfer port, and the horizontal adjustment plate can slide downward to adjust the opening size of the transfer port in the height direction. A vertical adjustment plate is provided on the outside of the transfer port, and the vertical adjustment plate can slide inward to adjust the opening size of the transfer port in the width direction. The vertical adjustment plate is located on the front side of the horizontal adjustment plate.

[0009] In a possible implementation, there are two horizontal adjustment plates, the two horizontal adjustment plates are symmetrically arranged, and inner ends of the two horizontal adjustment plates are in contact with each other.

[0010] In a possible implementation, the height of the horizontal adjustment plate is not less than the height of the transfer port, and the width of the vertical adjustment plate is not less than half the width of the transfer port.

[0011] In a possible implementation, the horizontal adjustment plate and the vertical adjustment plate are both made of stainless steel.

[0012] In a possible implementation, the return air inlet is horizontally opened on a side of the upper part of the transfer window box body close to the clean area, and the return air inlet is arranged toward the fan.

[0013] In a possible implementation, a PAO detection port is provided at the upper front portion of the transfer cavity, and the PAO detection port is used to detect leaks of the filter.

[0014] In a possible implementation, a pressure differential gauge is provided on the upper front side of the transfer chamber, and the pressure differential gauge is used to detect the pressure difference between the air inlet end and the air outlet end of the filter.

[0015] In a possible implementation, the fan is an EBM fan, and the filter is a high-efficiency filter.

[0016] The beneficial effect of a track transfer window provided by the utility model is that: compared with the prior art, the transfer chamber is located at the lower part of the transfer window box, and transfer ports are respectively provided on the front and rear sides, and a transmission track is arranged inside from front to back. In addition, a fan and a filter are arranged on the top of the transfer chamber from top to bottom, and a return air port is also provided on the upper side of the transfer window box close to the clean area. When the track transfer window provided by the utility model is used to continuously transfer materials, the materials enter the transmission track in the transfer chamber through the transfer port on the front side, and the materials are transported to the transfer port on the rear side through the transfer track. The airflow provided by the fan passes through the filter to form a vertical unidirectional flow, which can effectively purify the particles on the surface of the material, and is finally discharged through the transfer ports on both sides. The airflow in the transfer chamber forms a positive pressure inside it, preventing the air in the rooms on both sides of the transfer window body from entering the transfer chamber through the transfer port. In addition, the return air port introduces clean gas from the clean area to prevent unclean air from entering the transfer chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a front view of a track transfer window provided by the utility model;

[0019] Figure 2 for Figure 1 Partial cross-sectional view along AA;

[0020] Figure 3 The utility model provides a front sectional view of a track transfer window.

[0021] Description of reference numerals:

[0022] 1. Transfer window box; 2. Transfer cavity; 3. Transfer port; 4. Transfer track; 5. Return air port; 6. Observation window; 7. Horizontal adjustment plate; 8. Vertical adjustment plate; 9. PAO detection port; 10. Differential pressure gauge; 11. Switch button; 12. EBM fan; 13. High-efficiency filter. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention 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 invention and are not used to limit the present invention.

[0024] See also Figures 1 to 3 Now, a track transfer window provided by the utility model is described. A track transfer window includes a transfer window box body 1, a transfer cavity 2 is provided at the lower part of the transfer window box body 1, transfer ports 3 are provided at the front and rear sides of the transfer cavity 2, a transmission track 4 is provided at the bottom of the transfer cavity 2 from front to rear, a fan and a filter are provided in the transfer window box body 1, and the fan and the filter are provided at the top of the transfer cavity 2 from top to bottom, and a return air port 5 is provided at the upper part of the transfer window box body 1 near the clean area.

[0025] The utility model provides a track transfer window. Compared with the prior art, the transfer chamber 2 is located at the lower part of the transfer window box 1, and the front and rear sides are respectively provided with transfer ports 3, and the transmission track 4 is arranged inside from front to back. In addition, a fan and a filter are arranged from top to bottom on the top of the transfer chamber 2, and a return air port 5 is also opened on the upper side of the transfer window box 1 close to the clean area. When the track transfer window provided by the utility model is used to continuously transfer materials, the materials enter the transmission track 4 in the transfer chamber 2 through the transfer port 3 on the front side, and the materials are transported to the transfer port 3 on the rear side through the transfer track 4. The airflow provided by the fan passes through the filter to form a vertical unidirectional flow, which can effectively purify the particles on the surface of the material, and finally discharged through the transfer ports 3 on both sides. The airflow in the transfer chamber 2 forms a positive pressure inside it, preventing the air in the rooms on both sides of the transfer window body from entering the transfer chamber 2 through the transfer port 3. In addition, the return air port 5 introduces clean gas from the clean area to prevent unclean air from entering the transfer chamber 2.

[0026] The front and rear sides of the transfer chamber 2 are both provided with observation windows 6, which are made of double-layer tempered glass, and a sealing ring is provided at the edge of the tempered glass to ensure its sealing. The transfer port 3 is opened at the bottom of the observation window 6 and is correspondingly arranged at both ends of the transmission track 4. The transfer port 3 is adapted to the outer contour of the material. The transfer port 3 can allow the material to pass through, and its opening cross-sectional area is minimized, reducing the risk of air from the rooms on both sides entering the transfer chamber 2.

[0027] See also Figure 1 A horizontal adjustment plate 7 is arranged above the transfer port 3, and the horizontal adjustment plate 7 can slide downward to adjust the opening size of the transfer port 3 in the height direction. A vertical adjustment plate 8 is arranged outside the transfer port 3, and the vertical adjustment plate 8 can slide inward to adjust the opening size of the transfer port 3 in the width direction. The vertical adjustment plate 8 is located in front of the horizontal adjustment plate 7. By arranging the horizontal adjustment plate 7 and the vertical adjustment plate 8, the effective cross-sectional area of ​​the transfer port 3 can be adjusted. When the outer contour of the transferred material is small, the effective cross-sectional area of ​​the transfer port 3 can be further reduced.

[0028] Specifically, two longitudinal grooves are provided on the front side of the observation window 6, and the two longitudinal grooves are respectively located on the left and right sides of the transfer port 3, and the longitudinal grooves extend upward to the top of the transfer port 3. A transverse groove is provided on the front side of the observation window 6, and the transverse groove is located above the transfer port 3, and the two sides of the transverse groove extend to the top of the longitudinal grooves on both sides. The depths of the two transverse grooves and the one longitudinal groove are the same, and their depths are not less than the sum of the depths of the horizontal adjustment plate 7 and the vertical adjustment plate 8, and the horizontal adjustment plate 7 and the vertical adjustment plate 8 can be accommodated at the same time. The vertical adjustment plate 8 is located on the front side of the horizontal adjustment plate 7, and the transverse sliding of the vertical adjustment plate 8 and the longitudinal sliding of the horizontal adjustment plate 7 will not interfere with each other.

[0029] Preferably, there are two horizontal adjustment plates 7, which are symmetrically arranged on both sides, and the inner ends of the two horizontal adjustment plates 7 are fitted to each other. The two horizontal adjustment plates 7 can be adjusted longitudinally, and the two vertical adjustment plates 8 can be adjusted transversely, respectively. They can be adjusted to special-shaped transfer ports according to the actual product size to adapt to materials with special structures, such as L-shaped materials. In addition, it can also ensure that the effective cross-sectional area of ​​the transfer port 3 is as small as possible, reduce the connection area between the clean area and the non-clean area, and minimize the air volume leakage caused by the pressure difference on both sides.

[0030] Specifically, the height of the horizontal adjustment plate 7 is not less than the height of the transfer opening 3, and the width of the vertical adjustment plate 8 is not less than half the width of the transfer opening 3. When the track transfer window is not in use, the transfer opening 3 can be completely sealed by moving the horizontal adjustment plate 7 downward, or the two vertical adjustment plates 8 can be moved inward to completely seal the transfer opening 3, so as to prevent the air from the rooms on both sides from entering the transfer chamber 2.

[0031] Preferably, the horizontal adjustment plate 7 and the vertical adjustment plate 8 are both made of stainless steel to reduce the risk of corrosion of the two.

[0032] In addition, the return air inlet 5 is horizontally opened on the upper side of the transfer window box 1 close to the clean area, and the return air inlet 5 is arranged toward the fan, and the lower edge of the return air inlet 5 is not lower than the air outlet end of the lower part of the fan, so as to avoid the wind blown downward by the fan being directly discharged from the return air inlet 5 as much as possible.

[0033] A PAO detection port 9 is provided at the upper front portion of the transfer chamber 2. The PAO detection port 9 is used to detect leaks in the filter, thereby ensuring the filtering efficiency of the filter and the cleanliness in the clean area.

[0034] A differential pressure gauge 10 is provided on the upper front side of the transfer chamber 2, and the differential pressure gauge 10 is used to detect the differential pressure between the air inlet end and the air outlet end of the filter.

[0035] The fan is an EBM variable frequency fan, and the fan frequency is adjustable according to the pressure in the transfer chamber 2. The pressure in the transfer chamber 2 is 5-10 pa higher than the room with higher pressure in the rooms on both sides. The filter is a liquid tank type high efficiency filter 13.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A track transfer window, characterized in that: The invention comprises a transfer window box (1), wherein a transfer cavity (2) is provided at the lower part of the transfer window box (1), transfer ports (3) are provided at the front and rear sides of the transfer cavity (2), a transmission track (4) is provided at the bottom of the transfer cavity (2) from front to rear, a fan and a filter are provided inside the transfer window box (1), the fan and the filter are provided at the top of the transfer cavity (2) from top to bottom, and a return air port (5) is provided at the upper part of the transfer window box (1) close to the clean area.

2. A track transfer window as claimed in claim 1, characterized in that: The front and rear sides of the transfer chamber (2) are both provided with observation windows (6), and the transfer port (3) is opened at the bottom of the observation window (6) and is arranged corresponding to the two ends of the transmission track (4).

3. A track transfer window as claimed in claim 2, characterized in that: A horizontal adjustment plate (7) is arranged above the transfer opening (3), and the horizontal adjustment plate (7) can slide downward to adjust the opening size of the transfer opening (3) in the height direction. A vertical adjustment plate (8) is arranged on the outer side of the transfer opening (3), and the vertical adjustment plate (8) can slide inward to adjust the opening size of the transfer opening (3) in the width direction. The vertical adjustment plate (8) is located on the front side of the horizontal adjustment plate (7).

4. A track transfer window as claimed in claim 3, characterized in that: The number of the horizontal adjustment plates (7) is two, the two horizontal adjustment plates (7) are arranged symmetrically on the left and right, and the inner ends of the two horizontal adjustment plates (7) are in contact with each other.

5. A track transfer window as claimed in claim 3, characterized in that: The height of the horizontal adjustment plate (7) is not less than the height of the transfer opening (3), and the width of the vertical adjustment plate (8) is not less than half the width of the transfer opening (3).

6. A track transfer window as claimed in claim 3, characterized in that: The horizontal adjustment plate (7) and the vertical adjustment plate (8) are both made of stainless steel.

7. A track transfer window as claimed in claim 1, characterized in that: The return air port (5) is horizontally opened on the upper part of the transfer window box (1) on one side close to the clean area, and the return air port (5) is arranged toward the fan.

8. A track transfer window as claimed in claim 1, characterized in that: A PAO detection port (9) is provided at the upper front portion of the transfer chamber (2), and the PAO detection port (9) is used to detect leaks in the filter.

9. A track transfer window as claimed in claim 1, characterized in that: A pressure differential gauge (10) is provided at the upper front part of the transfer chamber (2), and the pressure differential gauge (10) is used to detect the pressure difference between the air inlet end and the air outlet end of the filter.

10. The track transfer window according to claim 1, characterized in that: The fan is an EBM fan (12), and the filter is a high-efficiency filter (13).

Images