Drop-proof extendable pipe fitting matched with water vapor generator instrument

By designing extendable tubing for the support and heating components, the problems of unstable fixing of the steam generator, condensation dripping, and single-person operation limitations were solved, achieving stable airflow and visible effect in a two-person operating space.

CN223499527UActive Publication Date: 2025-10-31SHANGHAI FOOD & DRUG PACKAGING MATERIALS TESTING INST
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Patent Information

Application Number
CN202422469903.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-12
Publication Date
2025-10-31
Estimated Expiration
2034-10-12

AI Technical Summary

Technical Problem

Existing steam generators lack supporting and fixing devices, making them inconvenient to hold and affecting the airflow direction; the fittings are prone to condensation and dripping, affecting the operating space and airflow stability; and they are not suitable for single-person operation, making it difficult to meet the needs of two-person operation.

Method used

An extendable pipe fitting with a support component and a heating component was designed. The support component is stably fixed by a support frame, the extendable structure can adapt to the operating space of two people, the heating component prevents condensation, and the fan provides kinetic energy to ensure stable airflow.

Benefits of technology

It achieves airflow stability and visibility in a two-person operating space, reduces the impact of dripping water, and ensures operator safety and normal production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water-drop-proof extendable pipe fitting matched with a water vapor generator instrument, which comprises a pipeline component, the pipeline component is of an internal hollow structure, a heating component is wound in the pipeline component, one end of the pipeline component is provided with a fan, the other end of the pipeline component is closed, and the pipeline component is provided with a water inlet and a water outlet. A plurality of through holes are formed in the side wall of the pipeline assembly in the axial direction of the pipeline assembly. And the supporting assembly comprises at least two supporting frames, and the two supporting frames are installed at the two ends of the pipeline assembly correspondingly. The pipe fitting is provided with an extension structure and can extend to a double-person operation space, after the rotating speed adjustable fan is additionally arranged, the rotating speed of the fan can be adjusted to match and extend the length of the pipe fitting, it is guaranteed that the concentration of water vapor in airflow is appropriate and stable, and the obvious video shooting effect is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of steam generator instruments, and in particular to a drip-proof extendable tubing for steam generator instruments. Background Technology

[0002] According to the latest regulations, standards, and technical guidelines concerning airflow pattern detection in the monitoring process of biosafety cabinets, such as: 5.4.9.3 of Class II biosafety cabinet (YY0569-2011) stipulates that airflow within the working area of ​​the biosafety cabinet should be downward, without generating vortices or upward airflow, and without dead spots; according to EU GMPANNEX1 (2022 Revised) clause 4.15, airflow patterns within cleanrooms and areas should be visualized to demonstrate that there is no flow from lower-level areas to higher-level areas; clause 4.19 stipulates that critical areas have initial airflow protection; and clause 5.2.2.1 of the PDA (Pharmaceutical Research Association) Technical Report No. 13 stipulates that airflow visualization studies (i.e., smoke studies) can address issues such as turbulence and eddies through airflow, process, or facility redesign.

[0003] To confirm the presence of turbulence and eddies during the production process inside the biosafety cabinet, and to determine whether adjustments to the production process are needed to improve the airflow pattern, airflow pattern experiments are conducted using water vapor as a revealing agent. Water vapor is used to reveal the airflow from the air vents at the top of the operating compartment inside the biosafety cabinet, and the direction of this revealed airflow is recorded via video to confirm that the airflow direction during the production operation inside the biosafety cabinet is unidirectional and free from overflow, turbulence, and eddies. This ensures that the samples being tested inside the biosafety cabinet are not contaminated by the external environment, and that operators outside the biosafety cabinet are not affected by biohazardous materials.

[0004] Currently, steam generator instruments have the following problems:

[0005] 1. The original steam generator instrument and its fittings lacked supporting and fixing devices. Current Good Manufacturing Practices (GMP) for pharmaceuticals require that during dynamic production processes, airflow be unidirectional with no overflow, turbulence, or eddies. Since production processes typically last 30-120 minutes, the previous practice of having the photographer hold the steam generator fittings for filming is no longer suitable. Furthermore, holding the fittings would occupy space within the operating chamber, affecting airflow and interfering with normal production operations within the biosafety cabinet.

[0006] 2. The steam delivery pipes are made of single-layer plastic. Inside the biosafety cabinet, the large airflow causes a significant temperature difference between the two ends of the pipes, resulting in substantial condensation of steam. After 10-20 minutes of operation, water begins to drip from the pipe outlet into the production area within the control chamber. Firstly, this dripping water may fall on operators and products, potentially contaminating the products and disrupting normal production. Secondly, the condensation of steam significantly reduces the steam concentration, affecting the visibility of steam in the airflow.

[0007] 3. Because the steam generator is placed outside the biosafety cabinet, the connecting hose between the steam generator outlet and the steam delivery pipe has a certain length, which can cause insufficient kinetic energy in the steam generator's delivery fan during steam delivery. This can lead to unstable steam concentration during steam delivery, causing intermittent airflow within the operating chamber.

[0008] 4. The original steam generator instrument's push tube is too short, only supporting the operating space of a single biosafety cabinet. With the development and refinement of biotechnology, the operation inside the biosafety cabinet is becoming increasingly complex and cumbersome, and the application of double biosafety cabinets is becoming more and more common. The original steam generator instrument's push tube is no longer suitable. Summary of the Invention

[0009] To address the aforementioned issues with existing CC devices, this invention aims to provide a drip-proof, extendable tubing for a steam generator instrument. The tubing has an extendable structure, allowing it to be extended to a two-person operating space. With the addition of an adjustable-speed fan, the fan speed can be adjusted to match the length of the extended tubing, ensuring a suitable and stable concentration of steam in the airflow and guaranteeing the effectiveness of video recording.

[0010] The specific technical solution is as follows:

[0011] A water vapor generator instrument with a drip-proof extendable tubing component includes: a tubing assembly, the tubing assembly having an internal hollow structure, a heating component wound inside the tubing assembly, a fan at one end of the tubing assembly, a closed end of the tubing assembly, and several through holes along its axial direction on the lower side wall of the tubing assembly;

[0012] A support assembly, comprising at least two support frames, the two support frames being respectively installed at both ends of the pipeline assembly.

[0013] The aforementioned steam generator is equipped with a drip-proof extendable tubing. The tubing assembly includes several tubes, which are detachably connected sequentially along the central axis of the tubes. Each tube is equipped with a heating component. A fan is provided at one end of the tube in the tubing assembly, and the other end of the tube is closed.

[0014] The aforementioned steam generator is equipped with a drip-proof extendable tubing, wherein the end of the tubing located at the other end of the tubing assembly is provided with a tube cap.

[0015] The aforementioned steam generator instrument is equipped with a drip-proof extendable tubing, wherein the tubing assembly is horizontally arranged, and all of the through holes are located at the bottom of the tubing assembly;

[0016] Several of the through holes are arranged at equal intervals along the axial direction of the pipeline assembly;

[0017] The central axis of the through hole is set vertically.

[0018] The aforementioned steam generator is equipped with a drip-proof extendable tubing, wherein each of the tubing bodies includes an inner tube and an outer tube that are nested together, with a wrapping layer between the inner tube and the outer tube, and the heating component is located between the wrapping layer and the inner tube.

[0019] The aforementioned steam generator is equipped with a drip-proof extendable tube fitting, wherein the lower side wall of the outer tube is provided with a plurality of first through holes along its axial direction, and the lower side wall of the inner tube is provided with a plurality of second through holes along its axial direction. The plurality of first through holes are respectively opposite to the plurality of second through holes, and the corresponding first through holes and second through holes form the through holes.

[0020] The aforementioned steam generator instrument is equipped with a drip-proof extendable pipe fitting, wherein each of the support frames includes: a base, a branch pipe and a clamp, the lower end of the branch pipe is fixedly connected to the base, the clamp is fixedly connected to the upper end of the branch pipe, and the clamp is sleeved on the pipeline assembly.

[0021] The aforementioned steam generator is equipped with a drip-proof extendable pipe fitting, wherein the center of the base is threadedly connected to the lower end of the branch pipe, and the upper end of the branch pipe is threadedly connected to the outer wall of the clamp.

[0022] The aforementioned steam generator instrument is equipped with a drip-proof extendable pipe fitting, wherein the base includes: a base plate and several support rods, the several support rods are respectively disposed on the outer periphery of the base plate and are equally spaced along the circumferential direction of the base plate, and the lower end of the support pipe is threadedly connected to the center of the base plate.

[0023] The aforementioned steam generator instrument is equipped with a drip-proof extendable pipe fitting, wherein the clamp has an opening, and the clamp is located on both sides of the opening and connected by fasteners.

[0024] The positive effects of the above technical solution compared with the existing technology are:

[0025] This utility model, by setting up a support component, can provide stable and firm support while minimizing the space occupied inside the biosafety cabinet, reducing the impact on the normal production of operators, and also reducing the impact of condensate on the production process of operators.

[0026] This invention, by incorporating a heating component, prevents water vapor condensation from affecting operators and further ensures the visibility of water vapor in the airflow.

[0027] This utility model uses a pipeline assembly to extend the pipeline length, which will not affect the operation when two people are working on it.

[0028] The fan of this invention provides appropriate kinetic energy, making the water vapor push more evenly and avoiding the long distance between the water vapor generator outlet and the water vapor pushing pipe, which would result in unstable water vapor.

[0029] This utility model can be connected to an extension pipe and applied to a double-person safety cabinet. The attached adjustable speed fan can increase the speed and push distance, and with the extension pipe, it can ensure stable airflow. Attached Figure Description

[0030] Figure 1 A schematic diagram of the overall structure of a drip-proof extendable tubing fitting for a steam generator instrument according to this utility model;

[0031] Figure 2 An exploded view of the piping assembly for a drip-proof extendable pipe fitting that is compatible with a steam generator instrument according to this utility model.

[0032] Figure 3 A side view of the structure of an anti-drip extendable tubing fitting for a steam generator instrument according to this utility model;

[0033] Figure 4 An exploded view of the support frame for a drip-proof extendable tubing fitting for a steam generator instrument according to this utility model.

[0034] In the attached diagram: 1. Piping assembly; 2. Support assembly; 3. Heating assembly; 4. Fan; 5. Through hole; 11. Pipe body; 12. Pipe cap; 21. Support frame; 22. Base; 23. Branch pipe; 24. Clamp; 25. Chassis; 26. Support rod; 27. Fastener; 31. First switch; 32. Second switch; 41. Outer pipe; 42. Inner pipe; 43. Wrapping layer; 51. First through hole; 52. Second through hole; 53. Third through hole; 61. First guide ring. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0036] like Figures 1 to 4 As shown, a preferred embodiment of a water vapor generator instrument with a drip-proof extendable tubing is provided, including: a tubing assembly 1 and a support assembly 2. The tubing assembly 1 has an internal hollow structure, and a heating assembly 3 is wound inside the tubing assembly 1. A fan 4 is provided at one end of the tubing assembly 1, and the other end of the tubing assembly 1 is closed. Several through holes 5 are provided along its axial direction on the lower side wall of the tubing assembly 1. The support assembly 2 includes: at least two support frames 21, which are respectively installed at both ends of the tubing assembly 1.

[0037] Furthermore, as a preferred embodiment, the pipeline assembly 1 includes a plurality of pipe bodies 11, which are detachably connected sequentially along the central axis of the pipe bodies. Each pipe body 11 is provided with a heating component 3. A fan 4 is provided at the end of the pipe body 11 located at one end of the pipeline assembly 1, and the end of the pipe body 11 located at the other end of the pipeline assembly 1 is closed.

[0038] Preferably, fan 4 has an adjustable speed.

[0039] Preferably, two adjacent tubes 11 are inserted and then snapped together.

[0040] Preferably, one end of the tube body 11 has a connecting protrusion ring with a protrusion, and the other end of the tube body has a groove. The connecting protrusion ring of one tube body extends into the other tube body, and the protrusion and the groove are snapped together to achieve a snap-fit ​​connection between the two tube bodies.

[0041] Furthermore, as a preferred embodiment, a pipe cap 12 is provided at the end of the pipe body 11 located at the other end of the pipe assembly 1.

[0042] Preferably, the cap 12 is snapped together with the tube body 11 at the end.

[0043] Preferably, the heating component 3 is a constant temperature coil.

[0044] Preferably, the water vapor generator instrument is equipped with a drip-proof extendable tube, which further includes: a first switch 31 and a second switch 32. The first switch 31 is electrically connected to the heating component 3, the second switch 32 is electrically connected to the fan 4, and the first switch 31 and the second switch 32 are respectively electrically connected to the power supply.

[0045] Furthermore, in a preferred embodiment, the pipe assembly 1 is horizontally arranged, and a plurality of through holes 5 are all located at the bottom of the pipe assembly 1. That is, through holes 5 are provided on the lower side wall of the pipe assembly 1.

[0046] Furthermore, as a preferred embodiment, a plurality of through holes 5 are arranged at equal intervals along the axial direction of the pipeline assembly 1.

[0047] Furthermore, as a preferred embodiment, the central axis of the through hole 5 is vertically arranged.

[0048] Furthermore, in a preferred embodiment, each tube 11 includes an inner tube 42 and an outer tube 41 that are nested together, with a wrapping layer 43 provided between the inner tube 42 and the outer tube 41, and the heating component 3 is disposed between the wrapping layer 43 and the inner tube 42.

[0049] Furthermore, as a preferred embodiment, the lower sidewall of the outer tube 41 is provided with a plurality of first through holes 51 along its axial direction, and the lower sidewall of the inner tube 42 is provided with a plurality of second through holes 52 along its axial direction. The plurality of first through holes 51 are respectively opposite to the plurality of second through holes 52, and the corresponding first through holes 51 and second through holes 52 form through holes.

[0050] Preferably, both the outer tube 41 and the inner tube 42 are horizontally arranged.

[0051] Preferably, the wrapping layer 43 is provided with a plurality of third through holes 53, and the plurality of third through holes 53 are respectively opposite to a plurality of second through holes 52.

[0052] Preferably, the inner tube 42 extends a first guide ring 61 on the wall of the second through hole 52, and the first guide ring 61 passes through the third through hole 53 and the first through hole 51.

[0053] By setting up the support component 2, this utility model can provide stable and firm support while minimizing the space occupied inside the biosafety cabinet, reducing the impact on the normal production of operators, and also reducing the impact of condensate on the production process of operators.

[0054] This invention, by setting up a heating component 3, prevents water vapor from condensing and affecting operators, and further ensures the visibility of water vapor in the airflow.

[0055] This utility model uses a pipe assembly 1 to extend the pipe length, which will not affect the operation when two people are working on it.

[0056] The fan of this invention provides appropriate kinetic energy, making the water vapor push more evenly and avoiding the problem of a long distance between the water vapor generator outlet and the water vapor pushing pipe, which would result in unstable water vapor.

[0057] This utility model can be connected to an extension pipe and applied to a double-person safety cabinet. The attached adjustable speed fan can increase the speed and push distance, and with the extension pipe, it can ensure stable airflow.

[0058] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention.

[0059] Based on the above, this utility model also has the following embodiments:

[0060] For further embodiments of this utility model, please refer to... Figures 1 to 4 As shown, each support frame 21 includes: a base 22, a branch pipe 23 and a clamp 24. The lower end of the branch pipe 23 is fixedly connected to the base 22, and the clamp 24 is fixedly connected to the upper end of the branch pipe 23. The clamp 24 is sleeved on the pipeline assembly 1.

[0061] In a further embodiment of this utility model, the center of the base 22 is threadedly connected to the lower end of the branch pipe 23, and the upper end of the branch pipe 23 is threadedly connected to the outer wall of the clamp 24.

[0062] In a further embodiment of the present invention, the base 22 includes a chassis 25 and a plurality of support rods 26. The plurality of support rods 26 are respectively disposed on the outer periphery of the chassis 25 and are equally spaced along the circumferential direction of the chassis 25. The lower end of the support tube 23 is threadedly connected to the center of the chassis 25.

[0063] In a further embodiment of this utility model, the clamp 24 has an opening, and the clamp 24 is located on both sides of the opening and connected by fasteners 27. This provides high stability.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drip-proof extendable tubing fitting for a steam generator, characterized in that, include: A pipe assembly, wherein the pipe assembly has an internal hollow structure, a heating component is wound inside the pipe assembly, a fan is provided at one end of the pipe assembly, the other end of the pipe assembly is closed, and several through holes are provided along its axial direction on the lower side wall of the pipe assembly. A support assembly, comprising at least two support frames, the two support frames being respectively installed at both ends of the pipeline assembly.

2. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 1, characterized in that, The pipeline assembly includes several pipes, which are detachably connected sequentially along the central axis of the pipes. Each pipe is equipped with the heating component. The end of the pipe located at one end of the pipeline assembly is equipped with the fan, and the end of the pipe located at the other end of the pipeline assembly is closed.

3. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 2, characterized in that, The end of the pipe body located at the other end of the pipe assembly is provided with a pipe cap.

4. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 3, characterized in that, The pipeline assembly is horizontally arranged, and all of the through holes are located at the bottom of the pipeline assembly; Several of the through holes are arranged at equal intervals along the axial direction of the pipeline assembly; The central axis of the through hole is set vertically.

5. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 4, characterized in that, Each of the tubes includes an inner tube and an outer tube that are nested together, with a wrapping layer between the inner tube and the outer tube, and the heating component is located between the wrapping layer and the inner tube.

6. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 5, characterized in that, The lower sidewall of the outer tube is provided with a plurality of first through holes along its axial direction, and the lower sidewall of the inner tube is provided with a plurality of second through holes along its axial direction. The plurality of first through holes are respectively opposite to the plurality of second through holes, and the corresponding first through holes and second through holes form the through holes.

7. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 1, characterized in that, Each of the support frames includes: a base, a branch pipe, and a clamp. The lower end of the branch pipe is fixedly connected to the base, and the clamp is fixedly connected to the upper end of the branch pipe. The clamp is sleeved on the pipeline assembly.

8. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 7, characterized in that, The center of the base is threaded to the lower end of the branch pipe, and the upper end of the branch pipe is threaded to the outer wall of the clamp.

9. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 8, characterized in that, The base includes a chassis and a plurality of support rods. The plurality of support rods are respectively disposed on the outer periphery of the chassis and are equally spaced along the circumferential direction of the chassis. The lower end of the support rod is threadedly connected to the center of the chassis.

10. The anti-drip extendable tubing fitting for the steam generator instrument according to claim 7, characterized in that, The clamp has an opening, and the clamp is located on both sides of the opening and connected by fasteners.