A steam-sealed sight glass bidirectional sterilization antibiotic stop valve

Abstract

The application relates to a steam-sealed sight glass bidirectional sterilization antibiotic stop valve and relates to the technical field of stop valves; the valve body is internally provided with a packing gland, a main valve rod and a steam pipeline in communication with the packing gland and arranged on the valve body, the steam pipeline is used for steam flow; the valve body is provided with a shunt chamber in communication with the steam pipeline, the shunt chamber is internally slidably provided with an isolation block used for plugging an opening of the shunt chamber, the isolation block is provided with a reset spring, the reset spring is telescopic along the insertion direction of the isolation block to the opening of the shunt chamber, and the reset spring is used for limiting the isolation block at the opening of the shunt chamber; the valve body is externally provided with a sterilization chamber located outside the main valve rod, the shunt chamber is provided with an auxiliary steam pipe in mutual communication with the sterilization chamber, and the sterilization chamber is provided with a discharge pipe used for discharging steam. The application can preliminarily sterilize the main valve rod, improves the utilization rate of steam in the steam pipeline, and guarantees the sterilization effect of the steam pipeline on the main valve rod.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stop valves, in particular to a steam-sealed sight glass bidirectional sterilization antibiotic stop valve. BACKGROUND

[0002] The antibiotic stop valve is mainly used in fermentation workshops and refining workshops, is used for cutting off or communicating steam, water, culture medium, air and other fluids, adjusts the flow of the fluids, and is an indispensable control pipeline for controlling the pressure in the pipeline or container.

[0003] A steam-sealed antibiotic stop valve exists on the market, which mainly comprises a valve body, an opening and closing piece slidingly arranged in the valve body, a steam pipeline arranged in the valve body, a packing chamber arranged in the valve body and in communication with the steam pipeline, and the opening and closing piece slides in the packing chamber; when the valve needs to be closed by the opening and closing piece, the opening and closing piece sliding in the packing chamber can be sterilized by injecting steam into the steam pipeline.

[0004] In the related art, the steam pipeline is usually a single-channel pipeline. When the opening and closing piece is sterilized through the steam pipeline, the steam usually only sterilizes the opening and closing piece sliding into the packing chamber. When the opening and closing piece slides into the packing chamber, the external bacteria attached to the opening and closing piece will be brought into the sliding cavity, thereby affecting the sterilization effect of the steam on the opening and closing piece to some extent. SUMMARY

[0005] In order to improve the poor sterilization effect of the steam-sealed antibiotic stop valve, the application provides a steam-sealed sight glass bidirectional sterilization antibiotic stop valve.

[0006] The steam-sealed sight glass bidirectional sterilization antibiotic stop valve provided by the application adopts the following technical scheme:

[0007] A steam-sealed sight glass bidirectional sterilization antibiotic stop valve, comprising a valve body, a packing chamber arranged in the valve body, a main valve rod, and a steam pipeline arranged on the valve body and in communication with the packing chamber, the steam pipeline being used for steam circulation; the valve body is provided with a shunt chamber in communication with the steam pipeline, the shunt chamber is slidingly provided with an isolation block for plugging the shunt chamber opening, the isolation block is provided with a return spring, the return spring is telescopic along the insertion direction of the isolation block to the shunt chamber opening, and the return spring is used for limiting the isolation block at the shunt chamber opening; the valve body is externally provided with a sterilization chamber located outside the main valve rod, the shunt chamber is provided with an auxiliary steam pipe in communication with the sterilization chamber, and the sterilization chamber is provided with a discharge pipe for discharging steam.

[0008] By adopting the technical scheme, when steam is introduced into the steam pipeline, the pressure in the steam pipeline will instantaneously increase, at this time, the steam will push the insulation block to move away from the central axis of the steam pipeline, the return spring is compressed by the insulation block, and the shunt chamber opening is opened, at this time, part of the steam flowing into the steam pipeline will flow into the sterilization chamber from the auxiliary steam pipe and be discharged through the discharge pipe, at this time, the steam flowing into the sterilization chamber will sterilize the main valve rod located outside the filler, thereby being capable of preliminarily sterilizing the main valve rod in the sterilization chamber, improving the utilization rate of steam in the steam pipeline, reducing the external bacteria source carried by the main valve rod when sliding into the filler, and guaranteeing the sterilization effect of the steam pipeline on the main valve rod; when the steam introduction into the steam pipeline is stopped, the pressure in the steam pipeline will gradually decrease, and the insulation block will be reset to be close to the shunt chamber opening under the elastic force of the return spring, at this time, the shunt chamber opening is blocked, preventing the steam in the sterilization chamber from flowing back to the steam pipeline, and guaranteeing the sterilization effect of the main valve rod in the filler.

[0009] Optionally, a collecting box in communication with the steam pipeline is arranged on the valve body, the collecting box is used for collecting the condensed water in the steam pipeline, a push-pull rod is hinged outside the main valve rod, a locking block is rotatably arranged on the push-pull rod, the push-pull rod is used for driving the locking block to move along the steam flow direction, and the locking block is used for blocking the opening of the collecting box.

[0010] By adopting the technical scheme, when the main valve rod is used to disconnect the fluid flow in the valve body, the push-pull rod will move away from the main valve rod along with the movement of the main valve rod, at this time, the locking block will move away from the opening of the collecting box under the pushing of the push-pull rod, the opening of the collecting box is opened, and the condensed water in the steam pipeline can flow into the collecting box, thereby reducing the remaining condensed water in the steam pipeline, ensuring the flow rate of steam in the steam pipeline, and further guaranteeing the sterilization effect of steam on the main valve rod; when the valve needs to be opened, the locking block will move to block the opening of the collecting box along with the movement of the main valve rod, at this time, the collecting box can be closed, and the opening and closing process of the collecting box is very convenient and fast.

[0011] Optionally, an annular scraping plate located outside the main valve rod is arranged on the inner side wall of the steam pipeline, the annular scraping plate is coaxially arranged with the main valve rod, and the annular scraping plate is used for mutually abutting the outer side wall of the main valve rod; a flow guide groove is arranged in the steam pipeline, and the flow guide groove is used for guiding the condensed water to flow into the collecting box.

[0012] By adopting the above technical scheme, when the main valve rod is moved, the condensed water condensed on the outer wall of the main valve rod can be scraped off by the annular scraping plate, and the condensed water is guided into the collecting box through the flow guide groove, the smoothness of the condensed water flowing into the collecting box is improved, the probability of the condensed water flowing from the main valve rod into the fluid inside the valve body is reduced, and the influence on the materials inside the valve body is reduced.

[0013] Optionally, the steam pipeline is provided with a steam valve at both ends for controlling the opening and closing of the steam, a rack extending in the sliding direction of the main valve rod is rotationally arranged on the main valve rod, and the main valve rod is used to drive the rack to slide in the sliding direction of the main valve rod; the steam valve is provided with a worm, and the rack and the worm jointly mesh with a transmission gear, and the transmission gear is used to drive the worm to rotate to control the opening and closing of the steam valve.

[0014] By adopting the above technical scheme, when the main valve rod is moved, the condensed water condensed on the outer wall of the main valve rod can be scraped off by the annular scraping plate, and the condensed water is guided into the collecting box through the flow guide groove, the smoothness of the condensed water flowing into the collecting box is improved, the probability of the condensed water flowing from the main valve rod into the fluid inside the valve body is reduced, and the influence on the materials inside the valve body is reduced.

[0015] Optionally, the steam pipeline is provided with a guide rod extending in the sliding direction of the main valve rod, and the rack is arranged on the guide rod; a buffer spring is arranged outside the rack guide rod, one end of the buffer spring is arranged on the rack, the other end of the buffer spring is arranged on the steam pipeline, and the buffer spring extends and retracts along the extension direction of the guide rod.

[0016] By adopting the above technical scheme, on the one hand, the rack sliding can be guided by the guide rod, thereby improving the accuracy of the rack sliding and ensuring the mutual meshing of the rack and the transmission gear; on the other hand, when the rack moves towards the sterilization chamber, the rack can be subjected to a certain reverse force by the buffer spring, thereby achieving a buffering effect on the rack and improving the stability of the rack sliding.

[0017] Optionally, the packing gland is provided with packing for sealing the opening of the packing gland, the packing is arranged at both ends of the packing gland, and the packing gland is further provided with a limiting spring outside the main valve rod, and the limiting spring is used to abut the packing against the inner side wall of the end portion of the packing gland.

[0018] By adopting the technical scheme, when steam is introduced into the steam pipeline, the packing can seal the sliding path of the main valve rod, thereby reducing the overflow of steam from the sliding path of the main valve rod, and reducing the probability of bringing external cold air into the packing chamber when the main valve rod moves, thereby ensuring the sterilization effect of the steam on the main valve rod.

[0019] Optionally, a channel for fluid flow is formed in the valve body, and an observation port is formed in the inner side wall of the channel, and a sight glass for plugging the observation port is arranged on the valve body, and the sight glass is used for the staff to observe the flow of fluid in the channel.

[0020] By adopting the technical scheme, when fluid flows in the channel, the staff can observe the flow direction of the material inside the valve body and the discharge of the material through the sight glass, thereby facilitating the staff to accurately judge the flow condition in the pipeline according to the flow rate or color change of the material inside the valve body, and facilitating the staff to accurately control the product quality.

[0021] Optionally, an installation groove is formed at the observation port, an installation frame for being inserted into the installation groove is arranged on the valve body, the installation frame is used for limiting the sight glass at the observation port, and an elastic buffer pad for abutting against the sight glass is arranged on the installation frame; and a fastener for limiting the installation frame in the installation groove is arranged on the installation frame.

[0022] By adopting the technical scheme, the elastic buffer pad reduces the probability of wear between the installation frame and the sight glass, reduces the damage of the connection between the sight glass and the installation frame when the sight glass is impacted by the material inside the channel, and prolongs the service life of the sight glass; when the sight glass needs to be replaced during long-term use, the fastener is removed from the installation frame, so that the installation frame is released from the fixing of the sight glass, facilitating the staff to remove and replace the sight glass, and ensuring the use effect of the sight glass.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The main valve rod in the sterilization chamber can be subjected to preliminary sterilization treatment, the utilization rate of steam in the steam pipeline is improved, the external bacteria carried by the main valve rod when sliding into the packing chamber is reduced, and the sterilization effect of the steam pipeline on the main valve rod is ensured.

[0025] 2. The worker can observe the flow direction of the material in the valve body and the discharge of the material through the sight glass, thereby facilitating the worker to make accurate judgment on the flow condition in the pipeline according to the flow rate or color change of the material in the valve body, and being beneficial to the worker to accurately control the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of embodiment 1 of the present application.

[0027] Figure 2 is a sectional view of the overall structure of embodiment 1 of the present application.

[0028] Figure 3 is an enlarged schematic view of A in Figure 2

[0029] Figure 4 is an enlarged schematic view of B in Figure 2

[0030] Figure 5 is a sectional view of the transmission gear part in embodiment 1 of the present application.

[0031] Figure 6 is a sectional view of the mounting groove part in embodiment 1 of the present application.

[0032] Figure 7 is an enlarged schematic view of C in Figure 6

[0033] BRIEF DESCRIPTION OF DRAWINGS1. Valve body; 10. Stuffing box; 101. Packing; 102. Limiting spring; 11. Main valve rod; 111. Push-pull rod; 112. Locking block; 113. Rack; 12. Steam pipeline; 121. Annular scraping plate; 122. Flow guide groove; 13. Collection box; 14. Passage; 141. Observation port; 15. Mounting groove; 151. Mounting frame; 152. Elastic buffer pad; 153. Fastener; 2. Split chamber; 20. Opening; 21. Insulating block; 211. Reset spring; 22. Auxiliary steam pipe; 3. Sterilization chamber; 31. Discharge pipe; 32. Guide rod; 33. Buffer spring; 4. Steam valve; 41. Worm; 42. Transmission gear; 5. Sight glass. DETAILED DESCRIPTION

[0034] The following will be described in detail in combination with the accompanying Figures 1-7 The present application will be further described in detail.

[0035] The embodiment of the present application discloses a steam-sealed sight glass bidirectional sterilization antibiotic stop valve. Referring to Figure 1 , Figure 2 ​​The steam-sealed sight glass bidirectional sterilization antibiotic shut-off valve includes a valve body 1 integrally formed from two valve seats, two main valve stems 11 slidably disposed within the valve body 1, a steam pipe 12 disposed on the valve body 1, and steam valves 4 disposed at both ends of the steam pipe 12. The steam valves 4 are used to control the on / off flow of steam within the steam pipe 12. A channel 14 for fluid flow is formed within the valve body 1, and a handwheel rotatably disposed on each corresponding main valve stem 11 is also included. Rotating the handwheel drives the corresponding main valve stem 11 to spirally rise and fall vertically, thereby controlling the opening and closing of the channel 14.

[0036] Reference Figure 2 , Figure 3 The valve body 1 has a vertically extending sliding cavity. The main valve stem 11 is slidably disposed within the sliding cavity. A stuffing box 10, communicating with the sliding cavity, is also provided within the valve body 1. The stuffing box 10 is coaxially arranged with the main valve stem 11 and is filled with packing material 101. The packing material 101 is distributed at both ends of the stuffing box 10 and is used to seal the openings at both ends of the stuffing box 10. A boss is integrally formed on the inner wall of the stuffing box 10 near the packing material 101 at both ends. A limiting spring 102 is installed inside the stuffing box 10, located between the boss and the packing material 101. The limiting spring 102 is sleeved outside the main valve stem 11. One end of the limiting spring 102 is fixedly connected to its corresponding packing material 101, and the other end of the limiting spring 102 abuts against its corresponding boss. The limiting spring 102 is used to press the packing material 101 against the inner wall of the end of the stuffing box 10. The limiting spring 102 improves the sealing of both ends of the packing 101 and the stuffing box 10, thereby ensuring the sterilization effect of steam on the main valve stem 11.

[0037] Reference Figure 2 , Figure 3 An annular scraper 121 is fixedly installed on the inner wall of the stuffing box 10. The annular scraper 121 is coaxially arranged with the main valve stem 11, and the inner wall of the end of the annular scraper 121 is in contact with the outer wall of the main valve stem 11. A collection box 13 communicating with the steam pipe 12 is detachably installed on the outer wall of the steam pipe 12. The collection box 13 is used to collect the condensate remaining inside the steam pipe 12. In this embodiment, the collection box 13 is threadedly connected to the steam pipe 12. A push-pull ring is rotatably connected to the outside of the main valve stem 11. A push-pull rod 111 is hinged to the outer wall of the push-pull ring away from the main valve stem 11. A locking block 112 is hinged to the end of the push-pull rod 111 away from the main valve stem 11. The push-pull rod 111 is used to drive the locking block 112 to slide along the steam flow direction, and the locking block 112 is used to seal the opening of the collection box 13.

[0038] Refer to Figure 2 , Figure 3The inner side wall of the steam pipe 12 is provided with a flow guide groove 122 extending along the steam flow direction. When the main valve rod 11 is moved to disconnect the passage 14, the push-pull rod 111 will move away from the main valve rod 11 along with the movement of the main valve rod 11. At this time, the locking block 112 will move away from the opening of the collection box 13 along with the movement of the push-pull rod 111, and the opening of the collection box 13 is opened. The condensed water on the main valve rod 11 will be scraped off by the annular scraping plate 121 and flow into the collection box 13 through the flow guide groove 122. When the main valve rod 11 is moved to open the passage 14, the locking block 112 will move towards the opening of the collection box 13 along with the movement of the main valve rod 11 and block the opening of the collection box 13.

[0039] Referring to Figure 1 , Figure 4 The outer side wall of the steam pipe 12 is integrally formed with a hollow shunt chamber 2. The inner side wall of the shunt chamber 2 is provided with an opening 20 communicating with the steam pipe 12. A limiting rod is fixedly installed on the inner side wall of the shunt chamber 2 opposite to the opening 20. A partition block 21 is slidably arranged on the limiting rod. The partition block 21 is used to block the opening 20, and the shape of the partition block 21 is matched with that of the opening 20. A return spring 211 is sleeved outside the limiting column. One end of the return spring 211 is fixedly connected to the inner side wall of the shunt chamber 2, and the other end of the return spring 211 is fixedly connected to the partition block 21. The return spring 211 can be extended or retracted along the insertion direction of the partition block 21 into the opening 20, and the return spring 211 is used to push the partition block 21 into the opening 20.

[0040] Referring to Figure 1 , Figure 2 Two sterilization chambers 3 corresponding to the main valve rod 11 are fixedly installed outside the valve body 1. The main valve rod 11 is arranged in each corresponding sterilization chamber 3, and an auxiliary steam pipe 22 is arranged between the two sterilization chambers 3 and the shunt chamber 2. The sterilization chamber 3 is provided with a discharge pipe 31 for discharging steam from the sterilization chamber 3. The other end of the discharge pipe 31 is connected to the steam outlet of the steam pipe 12.

[0041] Referring to Figure 2 , Figure 4When the worker introduces steam into the steam pipe 12, the pressure in the steam pipe 12 will instantaneously increase, at this time, the steam will push the insulation block 21 to move away from the central axis of the steam pipe 12, the reset spring 211 is compressed by the insulation block 21, the opening 20 is opened, at this time, part of the steam flowing into the steam pipe 12 will flow into the sterilization chamber 3 from the auxiliary steam pipe 22, and be discharged through the discharge pipe 31, at this time, the steam flowing into the sterilization chamber 3 will sterilize the main valve rod 11 located outside the filler 10, thereby being able to sterilize the main valve rod 11 in the sterilization chamber 3 in advance, improve the utilization rate of the steam in the steam pipe 12, reduce the external bacteria carried by the main valve rod 11 when sliding into the filler 10, and ensure the sterilization effect of the steam pipe 12 on the main valve rod 11.

[0042] With reference to Figure 2 , Figure 5 , the main valve rod 11 is rotatably connected with a rack 113 outside the main valve rod 11 through a rotating bearing, the rack 113 extends along the sliding direction of the main valve rod 11, and the main valve rod 11 is used to drive the rack 113 to slide in the vertical direction. A fixed table is fixedly installed on the steam pipe 12, and a guide rod 32 extending in the height direction of the main valve rod 11 is integrally formed on the outer side wall of the fixed table, the rack 113 is arranged on the guide rod 32, a buffer spring 33 is sleeved outside the guide rod 32, the buffer spring 33 extends and contracts along the sliding direction of the rack 113, one end of the buffer spring 33 abuts against the rack 113, and the other end of the buffer spring 33 is fixedly connected to the fixed table. A worm 41 is fixedly connected to the hand wheel of the steam valve 4, a transmission gear 42 is engaged between the worm 41 and the rack 113, a support rod is fixedly installed on the fixed table, and an end of the support rod away from the fixed table is rotatably connected with the transmission gear 42, and the transmission gear 42 is fixed through the support rod.

[0043] With reference to Figure 1 , Figure 5 , the valve body 1 is further fixedly provided with a protection plate for covering the rack 113, the transmission gear 42 and the worm 41. When the worker rotates the hand wheel on the main valve rod 11, the rack 113 will slide in the vertical direction along with the main valve rod 11, at this time, the transmission gear 42 rotates and drives the worm 41 to rotate, so that the steam valve 4 can be opened when the channel 14 is closed, improving the convenience of the worker when opening the steam valve 4.

[0044] With reference to Figure 1 , Figure 6The outer side wall of the valve body 1 is provided with an observation port 141 in communication with the channel 14, and a mounting groove 15 in communication with the observation port 141 is formed in the outer side wall of the valve body 1, and a sight glass 5 for covering the observation port 141 is mounted in the mounting groove 15. The mounting groove 15 is further provided with a mounting frame 151 for limiting the sight glass 5 at the observation port 141, and a plurality of fasteners 153 for fixing the mounting frame 151 in the mounting groove 15 are detachably arranged on the mounting frame 151. In the embodiment, the fasteners 153 are bolts, and the fasteners 153 are threadedly connected to the four corners of the mounting frame 151.

[0045] Referring to Figure 1 , Figure 7 The outer side wall of the mounting frame 151 facing the sight glass 5 is fixedly provided with an elastic buffer pad 152, the elastic buffer pad 152 is in the shape of a back-shaped character, and the elastic buffer pad 152 is made of corrosion-resistant butyl rubber material. By mounting the sight glass 5 in the mounting groove 15, then inserting the side of the mounting frame 151 provided with the elastic buffer pad 152 into the mounting groove 15, and finally fixing the mounting frame 151 in the mounting groove 15 by the fasteners 153 after the mounting frame 151 is tightly fitted and abutted with the sight glass 5 and the elastic buffer pad 152, the elastic buffer pad 152 can buffer the sight glass 5, reducing the probability of wear at the connection between the sight glass 5 and the mounting frame 151, and prolonging the service life of the sight glass 5.

[0046] The implementation principle of the steam-sealed sight glass bidirectional sterilization antibiotic stop valve is as follows: when the main valve rod 11 needs to be moved to close the channel 14 in the valve body 1, rotating the hand wheel on the main valve rod 11 can drive the worm 41 on the steam valve 4 to rotate through the rack 113 and the transmission gear 42, so as to open the steam valve 4 when closing the channel 14. At this time, the steam can enter the steam pipeline 12, the pressure in the steam pipeline 12 instantaneously increases and can push the isolation block 21 into the shunt chamber 2. At this time, the shunt chamber 2 is opened, part of the steam can flow into the sterilization chamber 3 through the auxiliary steam pipe 22, and the main valve rod 11 in the sterilization chamber 3 is subjected to steam sterilization treatment, so as to pre-sterilize the main valve rod 11, improve the utilization rate of steam in the steam pipeline 12, and improve the sterilization effect of steam on the main valve rod 11.

[0047] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered by the protection scope of the present application.

Claims

1. A steam-sealed, sight glass, bidirectional sterilization antibiotic stop valve, comprising a valve body (1), a stuffing box (10) arranged in the valve body (1), a main valve stem (11), and a steam conduit (12) arranged on the valve body (1) and communicating with the stuffing box (10), the steam conduit (12) being for steam flow therethrough; characterized in that: The valve body (1) is provided with a shunt chamber (2) communicated with the steam pipeline (12), the shunt chamber (2) is slidably provided with an isolation block (21) for plugging the opening of the shunt chamber (2), the isolation block (21) is provided with a reset spring (211), the reset spring (211) is telescopic along the insertion direction of the isolation block (21) to the opening of the shunt chamber (2), and the reset spring (211) is used for limiting the isolation block (21) at the opening of the shunt chamber (2); The valve body (1) is provided with a sterilization chamber (3) outside the main valve rod (11), the shunt chamber (2) is provided with an auxiliary steam pipe (22) communicated with the sterilization chamber (3), and the sterilization chamber (3) is provided with a discharge pipe (31) for discharging steam.

2. A steam-sealed sight glass bidirectional sterilization antibiotic stop valve according to claim 1, characterized in that: The valve body (1) is provided with a collecting box (13) communicated with the steam pipeline (12), the collecting box (13) is used for collecting the condensed water in the steam pipeline (12), the main valve rod (11) is hingedly connected with a push-pull rod (111), the push-pull rod (111) is rotatably provided with a locking block (112), the push-pull rod (111) is used for driving the locking block (112) to move along the steam flow direction, and the locking block (112) is used for plugging the opening of the collecting box (13).

3. A steam-sealed sight glass bidirectional sterilization antibiotic stop valve according to claim 2, characterized in that: The stuffing box (10) is provided with an annular scraping plate (121) outside the main valve rod (11), the annular scraping plate (121) is coaxially arranged with the main valve rod (11), and the annular scraping plate (121) is used for being attached to the outer side wall of the main valve rod (11); The steam pipeline (12) is provided with a flow guide groove (122), and the flow guide groove (122) is used for guiding the condensed water into the collecting box (13).

4. A steam-sealed sight glass bi-directional sterilization antibiotic barrier valve according to claim 1, wherein: The steam pipeline (12) is provided with a steam valve (4) at both ends for controlling the on-off of steam in the steam pipeline (12), the main valve rod (11) is rotatably provided with a rack (113) extending along the sliding direction of the main valve rod (11), and the main valve rod (11) is used for driving the rack (113) to slide along the sliding direction of the main valve rod (11); The steam valve (4) is provided with a worm (41), the rack (113) and the worm (41) are jointly meshed with a transmission gear (42), and the transmission gear (42) is used for driving the worm (41) to rotate to control the opening and closing of the steam valve (4).

5. A steam-sealed sight glass bidirectional sterilization antibiotic stop valve according to claim 4, characterized in that: The steam pipeline (12) is provided with a guide rod (32) extending along the sliding direction of the main valve rod (11), and the rack (113) is arranged on the guide rod (32); The guide rod (32) is externally provided with a buffer spring (33), one end of the buffer spring (33) is arranged on the rack (113), the other end of the buffer spring (33) is arranged on the steam pipeline (12), and the buffer spring (33) is telescopic along the extension direction of the guide rod (32).

6. A steam-sealed sight glass bidirectional sterilization antibiotic stop valve according to claim 1, characterized in that: The filler (10) is provided with a filler (101) for sealing the opening of the filler (10), the filler (101) is arranged at both ends of the filler (10), and the filler (10) is further provided with a limiting spring (102) located outside the main valve rod (11), the limiting spring (102) is used for abutting the filler (101) against the inner side wall of the filler (10).

7. A steam-sealed sight glass bidirectional sterilization antibiotic stop valve according to claim 1, characterized in that: The valve body (1) is formed with a channel (14) for fluid flow, the channel (14) is provided with an observation port (141) penetrating through the inner side wall, and the valve body (1) is provided with a sight glass (5) for covering the observation port (141), the sight glass (5) is used for the staff to observe the fluid flow in the channel (14).

8. A steam-sealed sight glass bidirectional sterilization antibiotic stop valve according to claim 7, characterized in that: The observation port (141) is provided with a mounting groove (15), the valve body (1) is provided with a mounting frame (151) inserted into the mounting groove (15), the mounting frame (151) is used for limiting the sight glass (5) at the observation port (141), and the mounting frame (151) is provided with an elastic buffer pad (152) used for abutting the sight glass (5); the mounting frame (151) is detachably provided with a fastener (153) used for limiting the mounting frame (151) in the mounting groove (15).

Images