Sanitary tank

Abstract

The utility model provides a sanitary tank, and relates to the field of medicine production tank equipment. A sanitary tank comprises a tank body and a tank bottom combination valve, and the tank bottom combination valve is fixed to the bottom of the tank body and communicated with the tank body. The tank bottom combination valve comprises a main valve, a three-way pipe and a branch valve; the main valve is fixed at the bottom of the tank body; the three-way pipe comprises a main pipe and a branch pipe; the branch pipe is communicated with the side wall of the main pipe; two ends of the main pipe are provided with a first communication port and a second communication port, the first communication port or the second communication port is communicated and connected with the side wall of the main valve, and the main pipe is communicated or closed with the tank body through the main valve; the distance L1 between the pipe wall, close to the main valve, of the branch pipe and the center of the main valve is equal to the diameter D1lt of the main pipe; 3; the branch valve is arranged on the branch pipe and communicated with the branch pipe, and the branch pipe is communicated or closed with the main pipe through the branch valve; the distance L2 between the pipe wall, close to the branch valve, of the main pipe and the center of the branch valve is equal to the diameter D2lt of the branch pipe; 3. The requirements of no dead angle and cleaning can be met when the tank body and the pipeline are cleaned; and operation steps are few, the structure is simple, assembling is easy, and cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pharmaceutical production tank equipment, in particular, relates to a sanitary tank. BACKGROUND

[0002] The sanitary tank is a kind of efficient, clean storage tank system, widely used in food, medicine, chemical industry, agriculture and biological fermentation and many other fields.In the pharmaceutical industry, the sanitary tank is usually used in the form of tank bottom valve combination valve, which can clean in place (CIP) and sterilize in place (SIP) respectively, and according to the requirement of ASME BPE to reduce the dead angle, generally needs to achieve "6D" no dead angle rule, or even needs to achieve "3D" no dead angle rule, to ensure the cleanliness requirement.This kind of tank bottom valve combination valve is a combination of forging tank bottom valve machining and welding branch valve.

[0003] This way needs to machine a step on the bottom of the forged tank bottom valve, then fix the step on the tank bottom, fix the main pipe and branch pipe on the two side walls of the step respectively, and set a branch valve on the branch pipe, so that the branch valve is not easy to be set close to the step, and thus cannot achieve "3D" no dead angle rule;And it needs to be processed on a numerical control lathe, which has many operation steps and high cost. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a sanitary tank to solve the technical problems that the branch valve of the tank bottom valve combination valve of the current sanitary tank cannot achieve "3D" no dead angle rule, and the connection operation steps are many and the cost is high.

[0005] In the first aspect, the embodiments of the present application provide a sanitary tank, which comprises a tank body and a tank bottom combination valve, the tank bottom combination valve is fixed on the bottom of the tank body and communicates with the tank body; the tank bottom combination valve comprises a main valve, a tee pipe and a branch valve, the main valve is fixed on the bottom of the tank body; the tee pipe comprises a main pipe and a branch pipe, the branch pipe communicates with the side wall of the main pipe; the two ends of the main pipe have a first communication port and a second communication port, the first communication port or the second communication port communicates with the side wall of the main valve, and the main pipe communicates with or closes the tank body through the main valve; the distance L1 from the pipe wall of the branch pipe close to the main valve to the center of the main valve / the diameter D1 of the main pipe is less than 3; the distance L2 from the pipe wall of the main pipe close to the branch valve to the center of the branch valve / the diameter D2 of the branch pipe is less than 3.

[0006] In the implementation process, the tank bottom combined valve is formed by the main valve and the tee pipe and the branch valve, the main valve is directly fixed to the bottom of the tank body, the first communication port or the second communication port of the main pipe is in communication connection with the side wall of the main valve, the branch pipe is in communication connection with the side wall of the main pipe, and the branch valve is arranged on the branch pipe, so that the main valve and the branch valve can both meet the "3D" no dead angle rule, so that the no dead angle and cleaning requirements can be met when the tank body and the pipeline are cleaned; and the tank bottom combined valve can directly connect the main valve, the tee pipe and the branch valve together, without needing to be processed on a numerical control lathe, so that the operation steps are few, the structure is simple, the assembly is easy and the cost is low.

[0007] In a possible implementation, the distance L3 from the center of the branch pipe to the center of the main valve / the diameter D1 of the main pipe is less than 6.

[0008] The distance L3 from the center of the branch pipe to the center of the main valve / the diameter D1 of the main pipe is less than 6, which can meet the "3D" no dead angle rule and the "6D" no dead angle rule at the same time, and can guarantee high cleaning requirements.

[0009] In a possible implementation, the distance L4 from the center of the main pipe to the center of the branch valve / the diameter D2 of the branch pipe is less than 6.

[0010] The distance L4 from the center of the main pipe to the center of the branch valve / the diameter D2 of the branch pipe is less than 6, which can meet the "3D" no dead angle rule and the "6D" no dead angle rule at the same time, and can guarantee high cleaning requirements.

[0011] In a possible implementation, the diameter D1 of the main pipe is 65-150 mm.

[0012] The main pipe is a tee pipe with a suitable diameter, which is beneficial to liquid flow and meets the cleaning requirements.

[0013] In a possible implementation, the diameter D2 of the branch pipe is 15-50 mm.

[0014] The branch pipe is a tee pipe with a suitable diameter, which is beneficial to liquid flow and meets the cleaning requirements. In a possible implementation, the main valve, the tee pipe and the branch valve are made of stainless steel.

[0015] The main valve, the tee pipe and the branch valve are made of the above-mentioned materials, which can reduce rust and the like, and is beneficial to meeting the cleaning requirements.

[0016] In a possible implementation, the polishing cleanliness of the main valve, the tee pipe and the branch valve is all not greater than 0.4 mu m.

[0017] The polishing cleanliness of the main valve, the tee pipe and the branch valve is all not greater than 0.4 mu m, which can reduce impurities and wall hanging and the like, and is beneficial to meeting the cleaning requirements.

[0018] In a possible implementation, the branch pipe is connected to the side wall of the main pipe perpendicularly.

[0019] The branch pipe of the tee pipe is connected to the side wall of the main pipe perpendicularly, which is conducive to the setting of the branch valve on the branch pipe close to the main pipe, so as to realize the setting of the branch valve meeting the "3D" dead angle free rule and the "6D" dead angle free rule.

[0020] In a possible implementation, the main pipe is inclined downward by an angle of 30°-45° to the horizontal line.

[0021] The main pipe is inclined downward by a suitable angle to the horizontal line, which is conducive to the discharge of water in the main valve along the inclined direction of the main pipe, so as to avoid the accumulation of water at the main valve body, thereby ensuring the cleaning requirement.

[0022] In a possible implementation, the branch valve is inclined upward by an angle of 15°-25° to the horizontal line.

[0023] The branch valve is inclined upward by a suitable angle to the horizontal line, which is conducive to the self-discharge of water in the branch valve along the inclined direction, so as to avoid the accumulation of water at the branch valve body, thereby ensuring the cleaning requirement. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0025] Fig. 1 The schematic diagram of the sanitary tank provided by the embodiments of the present application.

[0026] Fig. 2 The schematic diagram of the tank bottom combined valve provided by the embodiments of the present application.

[0027] Figure legend: 1-tank body; 2-tank bottom combined valve; 21-main valve; 22-tee pipe; 221-main pipe; 222-branch pipe; 23-branch valve. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the application without creative labor are within the scope of protection of the application.

[0030] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0031] In the description of the application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0032] In addition, the terms "horizontal", "vertical", "overhanging", etc. do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0033] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication between the two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0034] Embodiments

[0035] The application intends to improve the technical problems that the branch valve of the tank bottom valve combination valve of the existing sanitary tank cannot reach the "3D" no dead angle rule, and the connection operation steps are many and the cost is high. A sanitary tank is proposed, such as Figs. 1-2As shown, the tank bottom combination valve 2 is fixed to the bottom of the tank body 1 and communicates with the tank body 1; the tank bottom combination valve 2 comprises a main valve 21, a three-way pipe 22 and a branch valve 23, and the main valve 21 is fixed to the bottom of the tank body 1; the three-way pipe 22 comprises a main pipe 221 and a branch pipe 222, and the branch pipe 222 is connected to the side wall of the main pipe 221 in communication; the two ends of the main pipe 221 are provided with a first communication port and a second communication port, the first communication port is connected to the side wall of the main valve 21 in communication, and the main pipe 221 communicates with or closes the tank body 1 through the main valve 21; the distance L1 from the pipe wall of the branch pipe 222 close to the main valve 21 to the center of the main valve 21 is less than 3 times the diameter D1 of the main pipe 221; the branch valve 23 is arranged on the branch pipe 222 and communicates with the branch pipe 222, and the branch pipe 222 communicates with or closes the main pipe 221 through the branch valve 23; the distance L2 from the pipe wall of the main pipe 221 close to the branch valve 23 to the center of the branch valve 23 is less than 3 times the diameter D2 of the branch pipe 222.

[0036] The tank bottom combination valve 2 is formed by the combination of the main valve 21, the three-way pipe 22 and the branch valve 23, the main valve 21 is directly fixed to the bottom of the tank body 1, the first communication port of the main pipe 221 is connected to the side wall of the main valve 21 in communication, the branch pipe 222 is connected to the side wall of the main pipe 221 in communication, and the branch valve 23 is arranged on the branch pipe 222, so that the main valve 21 and the branch valve 23 can both satisfy the "3D" no dead angle rule, so that the tank can satisfy the requirements of no dead angle and cleanliness during the cleaning of the tank body 1 and the pipeline; and the tank bottom combination valve 2 can directly connect the main valve 21, the three-way pipe 22 and the branch valve 23 together, without the need of machining on the numerical control lathe, so that the operation steps are less, the structure is simple, the assembly is easy and the cost is low.

[0037] In some embodiments, the second communication port of the main pipe 221 is connected to other pipelines in communication, which is beneficial for the liquid in the tank body 1 to flow out to other pipelines through the main valve 21 and the main pipe 221. In other embodiments, the second communication port of the main pipe 221 can be connected to the side wall of the main valve 21 in communication, and the first communication port of the main pipe 221 is connected to other pipelines in communication.

[0038] In some embodiments, the distance L3 from the center of the branch pipe 222 to the center of the main valve 21 is less than 6 times the diameter D1 of the main pipe 221. By setting the distance L3 from the center of the branch pipe 222 to the center of the main valve 21 to be less than 6 times the diameter D1 of the main pipe 221, the "6D" no dead angle rule is satisfied on the basis of satisfying the "3D" no dead angle rule, so that higher cleaning requirements can be guaranteed.

[0039] In some embodiments, the distance L4 from the center of the main pipe 221 to the center of the branch valve 23 is less than 6 times the diameter D2 of the branch pipe 222. By setting the distance L4 from the center of the main pipe 221 to the center of the branch valve 23 to be less than 6 times the diameter D2 of the branch pipe 222, the "6D" no dead angle rule is satisfied on the basis of satisfying the "3D" no dead angle rule, so that higher cleaning requirements can be guaranteed.

[0040] In some embodiments, the diameter D1 of the main pipe 221 is 65-150 mm. For example, the diameter D1 of the main pipe 221 can be, but is not limited to, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, 105 mm, 110 mm, 115 mm, 120 mm, 125 mm, 130 mm, 135 mm, 140 mm, 145 mm, 150 mm. The three-way pipe 22 is selected to have a suitable diameter of the main pipe 221, which is conducive to the flow of liquid and meets the cleaning requirements.

[0041] In some embodiments, the diameter D2 of the branch pipe 222 is 15-50 mm. For example, the diameter D2 of the branch pipe 222 can be, but is not limited to, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm. The three-way pipe 22 is selected to have a suitable diameter of the branch pipe 222, which is conducive to the flow of liquid and meets the cleaning requirements.

[0042] In some embodiments, the main valve 21, the three-way pipe 22, and the branch valve 23 are made of stainless steel. It should be noted that the main valve 21, the three-way pipe 22, and the branch valve 23 are all made of stainless steel of type 316L or above. The main valve 21, the three-way pipe 22, and the branch valve 23 made of the above-mentioned material can reduce rusting and the like, which is conducive to meeting the cleaning requirements.

[0043] In some embodiments, the polishing cleanliness of the main valve 21, the three-way pipe 22, and the branch valve 23 is not greater than 0.4 μm. For example, the polishing cleanliness of the main valve 21, the three-way pipe 22, and the branch valve 23 can be, but is not limited to, 0.4 μm, 0.35 μm, 0.3 μm, 0.25 μm, 0.2 μm, 0.15 μm, 0.1 μm, 0.05 μm. The polishing cleanliness of the main valve 21, the three-way pipe 22, and the branch valve 23 is set to be not greater than 0.4 μm, which can reduce the occurrence of impurities and wall hanging and the like, and is more conducive to meeting the cleaning requirements.

[0044] In some embodiments, the branch pipe 222 is connected to the side wall of the main pipe 221 in perpendicular communication. The branch pipe 222 of the three-way pipe 22 is connected to the side wall of the main pipe 221 in perpendicular communication, which is conducive to the branch valve 23 being arranged on the branch pipe 222 close to the main pipe 221 to achieve the branch valve 23 being arranged to meet the “3D” dead angle-free rule and the “6D” dead angle-free rule. It should be noted that the “perpendicular” here is not absolute perpendicular, and there can be some deviation.

[0045] In some embodiments, the main pipe 221 is inclined downwardly to the horizontal line by an angle of 30°-45°. For example, the main pipe 221 can be inclined downwardly to the horizontal line by an angle of 30°, 35°, 40°, or 45°, but is not limited thereto. The main pipe 221 is inclined downwardly to the horizontal line by a suitable angle, so that water in the main valve 21 is discharged along the inclined direction of the main pipe 221, and water is prevented from accumulating at the main valve 21, thereby meeting the cleaning requirements.

[0046] In some embodiments, the branch valve 23 is inclined upwardly to the horizontal line by an angle of 15°-25°. For example, the branch valve 23 can be inclined upwardly to the horizontal line by an angle of 15°, 18°, 20°, 22°, or 25°, but is not limited thereto. The branch valve 23 is inclined upwardly to the horizontal line by a suitable angle, so that water in the branch valve 23 is discharged along the inclined direction of the branch valve 23, and water is prevented from accumulating at the branch valve 23, thereby meeting the cleaning requirements.

[0047] When the tank 1 is subjected to online cleaning or online sterilization, the main valve 21 is opened and the branch valve 23 is closed, and liquid flows out of the tank 1 through the main valve 21 and the main pipe 221. Since the distance L2 / D2<3 between the pipe wall close to the branch valve 23 and the center of the branch valve 23 and the diameter D2 of the branch pipe 222 and the distance L4 / D2<6 between the center of the main pipe 221 and the center of the branch valve 23, the liquid flowing out through the main valve 21 and the main pipe 221 meets the "3D" and "6D" rules for no dead angle. When the pipeline is subjected to online cleaning or online sterilization, the branch valve 23 is opened and the main valve 21 is closed, and liquid flows out through the branch pipe 222 and the branch valve 23. Since the distance L1 / D1<3 between the pipe wall close to the main valve 21 and the center of the main valve 21 and the diameter D1 of the branch pipe 222 and the distance L3 / D1<6 between the center of the branch pipe 222 and the center of the main valve 21, the liquid flowing out through the branch pipe 222 and the branch valve 23 meets the "3D" and "6D" rules for no dead angle. Thus, the tank 1 and the pipeline can be cleaned or sterilized without dead angle and meet the cleaning requirements.

[0048] The above merely provides preferred embodiments of the present application, but should not be used to limit the present application. Various modifications and changes can be made by those skilled in the art based on the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sanitary tank characterized by, The tank body and a tank bottom combination valve are fixed to the bottom of the tank body and communicate with the tank body; the tank bottom combination valve comprises: a main valve fixed to the bottom of the tank body; a tee pipe comprising a main pipe and a branch pipe, the branch pipe is connected to the side wall of the main pipe; the two ends of the main pipe have a first communication port and a second communication port, the first communication port or the second communication port is connected to the side wall of the main valve, the main pipe is communicated with or closed to the tank body through the main valve; the distance L1 from the pipe wall of the branch pipe close to the main valve to the center of the main valve / the diameter D1 of the main pipe is less than 3; a branch valve arranged on the branch pipe and communicated with the branch pipe, the branch pipe is communicated with or closed to the main pipe through the branch valve; the distance L2 from the pipe wall of the main pipe close to the branch valve to the center of the branch valve / the diameter D2 of the branch pipe is less than 3.

2. The sanitary tank of claim 1, wherein, The distance L3 from the center of the branch pipe to the center of the main valve / the diameter D1 of the main pipe is less than 6.

3. The sanitary tank of claim 1, wherein, The distance L4 from the center of the main pipe to the center of the branch valve / the diameter D2 of the branch pipe is less than 6.

4. The sanitary tank according to any one of claims 1-3, characterized in that, The diameter D1 of the main pipe is 65-150mm.

5. The sanitary tank according to any one of claims 1-3, characterized in that, The diameter D2 of the branch pipe is 15-50mm.

6. The sanitary tank according to any one of claims 1-3, wherein, The main valve, the tee pipe and the branch valve are made of stainless steel.

7. The sanitary tank of claim 6, wherein, The polishing cleanliness of the main valve, the tee pipe and the branch valve is not more than 0.4μm.

8. The sanitary tank according to any one of claims 1-3, wherein, The branch pipe is connected to the side wall of the main pipe perpendicularly.

9. The sanitary tank of claim 8, wherein, The main pipe is inclined downward to the horizontal line by an angle of 30°-45°.

10. The sanitary tank of claim 8, wherein, The branch valve is inclined upward to the horizontal line by an angle of 15°-25°.

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