Leak-proof structure, valve device and fermentation equipment

Abstract

The utility model provides a leakproof structure, a valve device and fermentation equipment. The anti-leakage structure comprises a covering main body, the covering main body is provided with a mounting concave part and a penetrating hole communicated with the mounting concave part, the covering main body covers the valve structure through the mounting concave part, at least part of the valve structure is located in the mounting concave part, and a valve rod of the valve structure penetrates through the penetrating hole and then extends out of the mounting concave part; and the first sealing piece is arranged between the hole wall of the penetrating hole and the valve rod, and the first sealing piece is used for sealing a gap between the penetrating hole and the valve rod, so that a sealing cavity is defined by the first sealing piece, at least part of the inner wall of the mounting concave part and the valve structure. According to the utility model, the problem that the regulating valve of the fermentation equipment in the prior art is easy to leak is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fermentation equipment technical field, specifically, relate to a kind of anti-leakage structure, valve device and fermentation equipment. BACKGROUND

[0002] Currently, regulating valve is usually arranged on fermentation equipment, and the regulating valve is mainly used for adjusting the flow and flow rate of the material into the fermentation equipment, so as to maintain the constant temperature and horizontal pressure fermentation environment in the fermentation equipment, and ensure the stable operation of the fermentation equipment.

[0003] In the prior art, the regulating valve is integrally installed on the material pipeline of the fermentation equipment, and the operating end of the valve stem is located outside the pipeline, so that the worker can operate the valve stem to adjust the operating parameters (such as flow and flow rate) of the regulating valve. Meanwhile, the regulating valve is also provided with a sealing structure (such as a sealing ring) inside, so as to prevent the material in the pipeline from leaking through the gap at the valve stem or the foreign bacteria from the outside entering the pipeline through the gap at the valve stem, thereby causing the microbial contamination of the material.

[0004] However, the sealing structure inside the regulating valve is prone to thermal deformation and loss of sealing function, and the worker cannot timely find the above problems, so that the leakage is likely to occur in the actual fermentation process of the fermentation equipment. In addition, due to the complex structure of the regulating valve and the material in the pipeline, ordinary workers cannot disassemble and repair the regulating valve on the spot, and the only method to solve the leakage problem in the prior art is to perform tank switching operation, which will greatly affect the production capacity and fermentation quality (microbial control) of the fermentation equipment. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide an anti-leakage structure, a valve device and a fermentation equipment, so as to solve the problem of easy leakage of the regulating valve of the fermentation equipment in the prior art.

[0006] In order to achieve the above purpose, according to one aspect of the utility model, an anti-leakage structure is provided, which comprises: a cover body having a mounting recess and a through hole communicating with the mounting recess, the cover body is covered on the valve structure through the mounting recess, at least part of the valve structure is located in the mounting recess, and the valve stem of the valve structure extends out of the mounting recess through the through hole; a first sealing member is arranged between the hole wall of the through hole and the valve stem, and the first sealing member is used for sealing the gap between the through hole and the valve stem, so as to form a sealing cavity around the first sealing member, at least part of the inner wall of the mounting recess and the valve structure.

[0007] Further, the anti-leakage structure further comprises: a second sealing member arranged between the valve structure and the inner wall of the mounting recess, and the second sealing member is used for sealing the gap between the valve structure and the inner wall of the mounting recess.

[0008] Further, the second sealing member is annular and sleeved on the valve rod, and is located between the valve structure and the bottom wall of the mounting recess; wherein the inner hole wall of the second sealing member is in interference fit with the outer circumferential surface of the valve rod.

[0009] Further, the cover body further has a discharging observation hole in communication with the mounting recess, and the material in the mounting recess is discharged through the discharging observation hole; wherein the communication between the discharging observation hole and the mounting recess is located on the side of the second sealing member away from the first sealing member.

[0010] Further, the inner wall of the mounting recess is provided with a threaded section for connecting with the valve structure.

[0011] Further, the outer circumferential surface of the cover body is provided with an annular protruding edge structure, and the annular protruding edge structure is provided with a matching notch, and the inner wall of the matching notch is used for tool limiting stop to drive the cover body to rotate; the leak-proof structure further comprises a plugging member, and the plugging member is detachably arranged at the discharging observation hole to block the discharging observation hole.

[0012] Further, the first sealing member is annular, and the hole wall of the penetrating hole is further provided with an annular mounting recess, and the first sealing member is arranged in the annular mounting recess; wherein at least part of the first sealing member protrudes from the hole wall of the penetrating hole to abut against the outer circumferential surface of the valve rod.

[0013] Further, the annular mounting recess is one, and the first sealing member is one; or the annular mounting recess is multiple, and the multiple annular mounting recesses are arranged at intervals along the extension direction of the penetrating hole, and the multiple first sealing members are arranged one by one corresponding to the multiple annular mounting recesses.

[0014] According to another aspect of the present application, a valve device is provided, comprising: a valve structure; a leak-proof structure, the leak-proof structure being mounted on the valve structure, and the valve rod of the valve structure extending out of the mounting recess of the leak-proof structure through the penetrating hole of the leak-proof structure; wherein the leak-proof structure is the above-mentioned leak-proof structure.

[0015] According to another aspect of the present application, a fermentation equipment is provided, comprising a fermentation equipment body, a material pipeline structure and a valve device, the material pipeline structure being in communication with the inner cavity of the fermentation equipment body, and the valve device being arranged on the material pipeline structure to adjust the flow rate and / or flow of the material in the material pipeline structure; wherein the valve device is the above-mentioned valve device.

[0016] The technical scheme of the utility model discloses, the cover of the leakproof structure is provided with the installation recess and the through hole that communicates with the installation recess, the cover is installed on the valve structure through the installation recess, at least part of the valve structure is located in the installation recess, the valve stem of the valve structure is stretched out from the installation recess after passing through the through hole, the first sealing piece is arranged between the hole wall of the through hole and the valve stem, the first sealing piece is used for sealing the gap between the through hole and the valve stem, and the sealing cavity is formed around the first sealing piece, the inner wall of the installation recess and the valve structure. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application form a part hereof, serve to provide further understanding of the application, and together with the description of the application explain the application. The specific embodiments of the application and the attached drawings serve to explain the application without imposing any undue limitations on the application. In the drawings:

[0018] Figure 1 A cross-sectional view of an embodiment of the leakproof structure according to the utility model is shown;

[0019] Figure 2 A top view of the leakproof structure in Figure 1 is shown.

[0020] In the above drawings, the following reference signs are used:

[0021] 10, cover body; 11, installation recess; 12, through hole; 13, discharge observation hole; 14, annular installation recess;

[0022] 20, first sealing piece;

[0023] 30, second sealing piece;

[0024] 40, annular protruding edge structure; 41, matching notch. DETAILED DESCRIPTION

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0026] In order to solve the problem that the adjusting valve of the fermentation equipment in the prior art is prone to leakage, the embodiment provides a leakage-proof structure, a valve device and a fermentation equipment.

[0027] As shown in Figure 1 and Figure 2 , the leakage-proof structure comprises a covering body 10 and a first sealing member 20, the covering body 10 has a mounting recess 11 and a through hole 12 communicating with the mounting recess 11, the covering body 10 is covered on the valve structure through the mounting recess 11, at least part of the valve structure is located in the mounting recess 11, and the valve stem of the valve structure extends out of the mounting recess 11 after passing through the through hole 12. The first sealing member 20 is arranged between the hole wall of the through hole 12 and the valve stem, and the first sealing member 20 is used for sealing the gap between the through hole 12 and the valve stem, so as to form a sealing cavity around the first sealing member 20, at least part of the inner wall of the mounting recess 11 and the valve structure.

[0028] By applying the technical scheme of the embodiment, the covering body 10 of the leakage-proof structure has the mounting recess 11 and the through hole 12 communicating with the mounting recess 11, the covering body 10 is covered on the valve structure through the mounting recess 11, at least part of the valve structure is located in the mounting recess 11, the valve stem of the valve structure extends out of the mounting recess 11 after passing through the through hole 12, and the first sealing member 20 is arranged between the hole wall of the through hole 12 and the valve stem. The first sealing member 20 is used for sealing the gap between the through hole 12 and the valve stem, so as to form a sealing cavity around the first sealing member 20, at least part of the inner wall of the mounting recess 11 and the valve structure. In this way, the valve stem can extend out of the mounting recess 11 through the through hole 12, so as to ensure that the staff can operate the valve stem to adjust the operating parameters of the valve structure. Meanwhile, the sealing cavity can be formed around the first sealing member 20, the inner wall of the mounting recess 11 and the valve structure. When the internal sealing structure of the valve structure is damaged and the material leaks out through the gap at the valve stem, the material can be sealed in the sealing cavity. That is, even if the valve structure is damaged and leaks, the material will not leak to the external environment, and the bacteria in the external environment cannot enter the valve structure, thereby solving the problem that the adjusting valve of the fermentation equipment in the prior art is prone to leakage, and improving the fermentation quality of the fermentation equipment.

[0029] In the embodiment, the covering body 10 is made of 316L stainless steel as a whole, and the inner wall of the mounting recess 11 and the hole wall of the through hole 12 are polished to avoid rusting and damage caused by material staining, thereby prolonging the service life of the leakage-proof structure.

[0030] Specifically, the valve structure comprises a valve body and a valve rod arranged in the valve body, the valve rod is arranged in a telescopic manner, and if the sealing structure inside the valve structure is damaged during actual operation of the valve structure, material will flow out from the gap between the valve rod and the valve body. In the embodiment, one end of the valve rod is located in the mounting recess 11, that is, the gap between the valve rod and the valve body is located in the sealing cavity.

[0031] In the embodiment, the mounting recess 11 is a cylindrical recess, which is matched with the valve structure of a cylindrical structure.

[0032] It should be noted that the structure of the mounting recess 11 is not limited to this, and can be adjusted according to the working conditions and use requirements.

[0033] As shown in Figure 1 , the anti-leakage structure further comprises a second sealing member 30, which is arranged between the valve structure and the inner wall of the mounting recess 11, and is used for sealing the gap between the valve structure and the inner wall of the mounting recess 11. In this way, the second sealing member 30 can perform secondary sealing on the gap between the valve rod and the valve body in the mounting recess 11, so as to further improve the anti-leakage reliability of the anti-leakage structure.

[0034] As shown in Figure 1 , the second sealing member 30 is annular and is sleeved on the valve rod, and is located between the valve structure and the bottom wall of the mounting recess 11. The inner hole wall of the second sealing member 30 is in interference fit with the outer peripheral surface of the valve rod. In this way, after the anti-leakage structure is installed on the valve structure, the end surface of the valve structure will extrude and tightly adhere to the second sealing member 30, and the inner hole wall of the second sealing member 30 will tightly adhere to the outer peripheral surface of the valve rod, so as to seal the gap between the valve rod and the valve body through the second sealing member 30.

[0035] In the embodiment, the second sealing member 30 is a sealing gasket, and the two gasket surfaces of the sealing gasket are tightly adhered to the bottom wall of the mounting recess 11 and the end surface of the valve structure, respectively.

[0036] As shown in Figure 1 , the cover body 10 further has a discharge observation hole 13 communicating with the mounting recess 11, and the material in the mounting recess 11 is discharged through the discharge observation hole 13. The communication between the discharge observation hole 13 and the mounting recess 11 is located on the side of the second sealing member 30 away from the first sealing member 20. In this way, the worker can judge the damage of the second sealing member 30 and the valve structure by observing whether there is material leakage at the discharge observation hole 13, so that the worker does not need to disassemble the anti-leakage structure.

[0037] Specifically, during the operation of the fermentation equipment, if the sealing structure of the valve structure and the second sealing member 30 are both damaged, the sealing cavity (the mounting recess 11) will be filled with the material, and the worker can determine whether the valve structure and the second sealing member 30 are damaged by observing whether the material flows out of the discharge observation hole 13 or observing whether there is liquid on the outer peripheral surface of the valve structure through the discharge observation hole 13, so as to facilitate the worker to maintain the anti-leakage structure and the valve structure.

[0038] It should be noted that, under the action of the second sealing member 30 (the sealing gasket), although the high-pressure material in the fermentation equipment can flow out through the small gap generated by the damaged second sealing member 30, it is actually difficult for foreign bacteria to flow into the gap between the valve stem and the valve body through the small gap, so the setting of the discharge observation hole 13 will not affect the actual effect of the anti-leakage structure in preventing foreign bacteria from entering the valve structure.

[0039] It should be noted that the worker can also determine whether the valve structure and the second sealing member 30 are damaged by whether the material leaks out of the penetrating hole 12, but at this time the first sealing member 20 is actually also damaged, which means that the anti-leakage structure must be immediately overhauled, and the setting of the discharge observation hole 13 enables the worker to discover whether the second sealing member 30 and the valve structure are damaged before the first sealing member 20 is damaged (the anti-leakage structure still has the anti-leakage effect), so as to overhaul before the anti-leakage structure is completely damaged.

[0040] Optionally, the anti-leakage structure further comprises a plugging member, which is detachably arranged at the discharge observation hole 13, so as to plug the discharge observation hole 13. In this way, the plugging member can further plug the discharge observation hole 13, so as to avoid foreign bacteria from entering the mounting recess 11.

[0041] Optionally, the plugging member is a rubber plug.

[0042] Optionally, the hole wall of the discharge observation hole 13 can also be provided with threads, and the plugging member is a threaded plug, so as to improve the plugging reliability of the plugging member to the discharge observation hole 13.

[0043] In the embodiment, the inner wall of the mounting recess 11 is provided with a threaded section for connecting with the valve structure. In this way, the worker can realize the installation and disassembly of the anti-leakage structure by screwing the cover body 10, thereby reducing the disassembly difficulty of the worker.

[0044] As Figure 2As shown, the outer circumferential surface of the cover body 10 is provided with an annular protruding structure 40, and the annular protruding structure 40 is provided with a matching notch 41, and the inner wall of the matching notch 41 is used for tool limiting stop to drive the cover body 10 to rotate. In this way, the above-mentioned setting can facilitate the staff to install the cover body 10, so as to reduce the assembly difficulty of the staff.

[0045] In the embodiment, the cover body 10 is actually a columnar structure, one end surface of which is provided with a mounting recess 11, and the other end surface is provided with a through hole 12 communicated with the bottom wall of the mounting recess 11.

[0046] As shown, Figure 1 the first sealing element 20 is annular, and the hole wall of the through hole 12 is further provided with an annular mounting recess 14, and the first sealing element 20 is arranged in the annular mounting recess 14. Among them, at least part of the first sealing element 20 protrudes from the hole wall of the through hole 12 to abut with the outer circumferential surface of the valve rod. In this way, the above-mentioned setting can fix and limit the first sealing element 20 through the limiting stop between the inner wall of the annular mounting recess 14 and the first sealing element 20, so as to avoid that the valve rod drives the first sealing element 20 to move through friction during the operation of the valve rod, which causes the deformation of the first sealing element 20 and the realization of the sealing effect, thereby improving the sealing reliability of the first sealing element 20. At the same time, the protrusion of the first sealing element 20 from the hole wall of the through hole 12 ensures that the first sealing element 20 has high contact tightness with the outer circumferential surface of the valve rod, so as to improve the sealing reliability of the first sealing element 20.

[0047] In the embodiment, the first sealing element 20 is an O-shaped sealing ring.

[0048] Optionally, the annular mounting recess 14 is one, and the first sealing element 20 is one; or the annular mounting recess 14 is multiple, and the multiple annular mounting recesses 14 are arranged in the extension direction of the through hole 12, and the multiple first sealing elements 20 are arranged one by one corresponding to the multiple annular mounting recesses 14. In this way, when the annular mounting recess 14 and the first sealing element 20 are both multiple, the multiple first sealing elements 20 can form multiple seals in the through hole 12, so as to further improve the anti-leakage reliability of the anti-leakage structure. At the same time, the above-mentioned setting also makes the number of the first sealing element 20 more flexible and diverse, so as to adapt to different working conditions and use requirements, and also improves the processing flexibility of the staff.

[0049] In the embodiment, the annular mounting recess 14 is one, and the first sealing element 20 is one.

[0050] It can be seen that the anti-leakage structure in the embodiment only needs to be directly installed on the original valve structure, without any modification of the valve structure, so that the valve structure will not leak even if it is damaged, fundamentally solving the valve structure leakage problem, reducing the microbial contamination problem in the fermentation process, improving the process production qualified rate, reducing the maintenance cost, reducing the labor intensity of the workers, and ensuring the continuous and stable operation of the equipment.

[0051] The embodiment also provides a valve device (not shown), which comprises a valve structure and an anti-leakage structure, the anti-leakage structure is installed on the valve structure, and a valve rod of the valve structure extends out of a mounting recess 11 of the anti-leakage structure through a penetrating hole 12 of the anti-leakage structure. The anti-leakage structure is the anti-leakage structure described above.

[0052] The embodiment also provides a fermentation equipment, which comprises a fermentation equipment main body, a material pipeline structure and a valve device, the material pipeline structure is communicated with an inner cavity of the fermentation equipment main body, and the valve device is arranged on the material pipeline structure and used for adjusting the flow rate and / or flow of the material in the material pipeline structure. The valve device is the valve device described above.

[0053] Optionally, the fermentation equipment main body is a fermentation tank.

[0054] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0055] The cover body of the anti-leakage structure has a mounting recess and a penetrating hole communicated with the mounting recess, the cover body is covered on the valve structure through the mounting recess, at least part of the valve structure is located in the mounting recess, the valve rod of the valve structure extends out of the mounting recess after penetrating through the penetrating hole, the first sealing piece is arranged between the hole wall of the penetrating hole and the valve rod, and the first sealing piece is used for sealing the gap between the penetrating hole and the valve rod, so as to form a sealing cavity around the first sealing piece, the inner wall of the mounting recess and the valve structure. In this way, the valve rod can extend out of the mounting recess through the penetrating hole, so as to ensure that the workers can operate the valve rod to adjust the operating parameters of the valve structure, and the sealing cavity can be formed around the first sealing piece, the inner wall of the mounting recess and the valve structure. When the internal sealing structure of the valve structure is damaged and the material leaks out through the gap at the valve rod, the material can be sealed in the sealing cavity, that is, even if the valve structure is damaged and leaks, the material will not leak to the external environment, and the bacteria in the external environment cannot enter the valve structure, thereby solving the problem that the adjusting valve of the fermentation equipment in the prior art is prone to leakage, and improving the fermentation quality of the fermentation equipment.

[0056] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0057] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the present application unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale of the actual proportions used in the fabrication, assembly, and operation of the example embodiments. Techniques, methods, and apparatus known to those of ordinary skill can not be discussed in detail herein, but should be considered as part of the description unless otherwise stated. In all examples shown and discussed herein, any specific values are to be interpreted as merely exemplary and not limiting. Thus, other examples of example embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and, as such, no further discussion with regard thereto is deemed necessary.

[0058] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without being contrary, these orientation words do not indicate and imply that the indicated devices or elements must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application. The orientation words "inner, outer" refer to the inner and outer relative to the contour of the components themselves.

[0059] For purposes of the description hereinafter, spatial

[0060] In addition, it should be noted that the use of the terms "first", "second", etc., to describe a component having a defined property is only to facilitate the description and does not indicate or imply what the actual number of the components is or be understood to limit a number of instances of the components.

[0061] The preferred embodiments of the present application are described above in detail. The present application, however, is not limited to the above examples, but can be modified in various ways by those skilled in the art without departing from the spirit and scope of the present application. Accordingly, the modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of the present application.

Claims

1. A leak-proof structure, characterized by, The anti-leakage structure comprises: a cover body (10) having a mounting recess (11) and a through hole (12) in communication with the mounting recess (11), the cover body (10) being covered on a valve structure through the mounting recess (11), at least part of the valve structure being located in the mounting recess (11), and a valve stem of the valve structure extending out of the mounting recess (11) through the through hole (12); a first sealing member (20) arranged between a hole wall of the through hole (12) and the valve stem, the first sealing member (20) being used for sealing a gap between the through hole (12) and the valve stem to form a sealed cavity around the first sealing member (20), at least part of an inner wall of the mounting recess (11) and the valve structure.

2. The leak resistant structure of claim 1, wherein, The anti-leakage structure further comprises: a second sealing member (30) arranged between the valve structure and the inner wall of the mounting recess (11), the second sealing member (30) being used for sealing a gap between the valve structure and the inner wall of the mounting recess (11).

3. The anti-leakage structure according to claim 2, wherein the second sealing member (30) is annular and sleeved on the valve stem, and the second sealing member (30) is located between the valve structure and a bottom wall of the mounting recess (11); wherein the inner hole wall of the second sealing member (30) is in interference fit with the outer peripheral surface of the valve stem.

4. The anti-leakage structure according to claim 3, wherein the cover body (10) further has a discharge observation hole (13) in communication with the mounting recess (11), and materials in the mounting recess (11) are discharged through the discharge observation hole (13); wherein the communication between the discharge observation hole (13) and the mounting recess (11) is located on a side of the second sealing member (30) away from the first sealing member (20).

5. The leak-tight structure according to any one of claims 1 to 4, characterized in that, A threaded section for connecting with the valve structure is arranged on the inner wall of the mounting recess (11).

6. The anti-leakage structure according to claim 4, wherein an annular protruding structure (40) is arranged on the outer peripheral surface of the cover body (10), the annular protruding structure (40) is provided with a matching notch (41), and the inner wall of the matching notch (41) is used for tool limiting stop to drive the cover body (10) to rotate; the anti-leakage structure further comprises a plugging member, the plugging member being detachably arranged at the discharge observation hole (13) to plug the discharge observation hole (13).

7. The anti-leakage structure according to claim 1, wherein the first sealing member (20) is annular, and an annular mounting recess (14) is further arranged on the hole wall of the through hole (12), and the first sealing member (20) is arranged in the annular mounting recess (14); wherein at least part of the first sealing member (20) protrudes from the hole wall of the through hole (12) to abut against the outer peripheral surface of the valve stem.

8. The leak resistant structure of claim 7, wherein, The annular mounting recess (14) is one, and the first seal (20) is one; or the annular mounting recess (14) is multiple, multiple annular mounting recesses (14) are arranged along the extension direction of the through hole (12), and multiple first seals (20) are arranged one by one corresponding to multiple annular mounting recesses (14).

9. A valve device, characterized by Comprise: Valve structure; Leakage-proof structure, the valve stem of the valve structure extends out of the mounting recess (11) of the leakage-proof structure through the through hole (12) of the leakage-proof structure; Wherein, the leakage-proof structure is any one of claims 1-8.

10. A fermentation apparatus, characterized by, The fermentation equipment comprises a fermentation equipment main body, a material pipeline structure and a valve device. The material pipeline structure is communicated with the inner cavity of the fermentation equipment main body. The valve device is arranged on the material pipeline structure and used for adjusting the flow rate and / or flow of the material in the material pipeline structure. The valve device is the valve device in claim 9.

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