Medical high-weather-resistance pressure tank

Abstract

The utility model provides a medical high-weather-resistance pressure tank which comprises a tank body and end sockets arranged at the two ends of the tank body, and the end sockets and the tank body are fixedly connected through flange plates. A bag surrounded by gas is arranged in the tank body, a pipeline is arranged at the inlet end part of the bag, and the pipeline is fixedly mounted on the tank body through a flange connecting piece; the bag is a double-layer bag body formed by combining an outer wall and an inner wall. The bag made of the rubber material with high weather resistance, aging resistance and corrosion resistance is a double-layer bag body formed by combining the outer wall and the inner wall, the bag has extremely high weather resistance, and the cavity is formed between the outer wall and the inner wall and is filled with the high-weather-resistance preparation; and therefore, the pressure tank can have the service life of at least 3 years at the extreme temperature (-65 DEG C to 130 DEG C), and the probability of damage to the pressure tank is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure tank technical field, especially relate to a medical high weatherability pressure tank. BACKGROUND

[0002] The special process flow of the pharmaceutical industry, especially in pharmaceutical and biological preparation production, often involves extreme temperature and complex chemical medium environment. As a key device, the pressure tank bears the tasks of storage, processing, transportation and control of medium, and must have high safety, durability and stability.

[0003] However, the existing pressure tank often ruptures when used in an extreme temperature environment (such as as low as -65℃, as high as 130℃), resulting in direct contact between the gas in the pressure tank and the liquid in the bladder. The coexistence of liquid and gas makes the pressure in the tank unevenly distributed, causing the pressure tank to be damaged; further, the pressure tank needs to be replaced constantly, greatly increasing the use cost.

[0004] In view of this, how to solve the defects existing in the prior art has become one of the problems to be solved in the field of pressure tank technology. INVENTION CONTENTS

[0005] In view of the problems in the background art, the utility model provides a medical high weatherability pressure tank, which comprises a tank body and a head arranged at both ends of the tank body, and the head and the tank body are fixedly connected through a flange plate; a bladder surrounded by gas is arranged in the tank body, a pipeline is arranged on the inlet end of the bladder, and the pipeline is fixedly installed on the tank body through a flange connector; and the bladder is a double-layer bladder body composed of an outer wall and an inner wall.

[0006] Optionally, the tank body bending end is filled with a sealing plug at the position connected with the head.

[0007] Optionally, a cavity is arranged between the outer wall and the inner wall, and the cavity is filled with a high weatherability preparation; and the bladder is made of a rubber material with high weatherability, anti-aging and corrosion resistance.

[0008] Optionally, a gas charging and discharging valve is installed on the tank body, the gas charging and discharging valve is provided with a valve seat and is installed on the tank body, and a gas outlet port of the gas charging and discharging valve extends into the tank body.

[0009] Optionally, the flange connector comprises a flange cover, the flange cover is welded to the tank body,

[0010] The flange connector further comprises a flange seat, and the bladder is located between the flange seat and the flange cover and is sealingly connected.

[0011] Optionally, threaded holes are formed in the flange seat and the flange cover, fastening bolts are screwed in the threaded holes, and the two ends of the fastening bolts are screwed with fastening nuts.

[0012] Optionally, a second sealing member is filled in the connecting groove of the flange seat, the second sealing member is located at the bent end of the capsule, and the second sealing member is integrally arranged with the capsule, the second sealing member is provided with a convex end arranged in a corrugated shape.

[0013] Optionally, a first sealing member is arranged on the end face of the flange cover opposite to the convex end, the first sealing member is provided with a groove for the convex end to extend into, and the convex end is closely attached to the inner wall of the groove.

[0014] Optionally, at least one group of inflation cavities are formed in the inner wall of the tank cavity, and a dynamic sealing member is arranged in the gas passage between the inner wall of the tank and the inner wall, the dynamic sealing member is made of rubber material, two groups of supporting legs are arranged on the dynamic sealing member, and the supporting legs extend into the inflation cavities.

[0015] Optionally, the end of the supporting leg away from the flange disc is arranged in an arc shape, the supporting leg has a gap between the supporting leg and the inflation cavity, the end of the supporting leg close to the flange disc abuts against and is closely attached to the inner wall of the inflation cavity.

[0016] The dynamic sealing member away from the supporting leg is provided with two groups of abutting sealing ends, and an arc-shaped end is arranged between the two groups of abutting sealing ends.

[0017] In summary, the beneficial effects of the present application are:

[0018] (1) The capsule made of the rubber material with high weather resistance, aging resistance and corrosion resistance is composed of the double-layer capsule body composed of the outer wall and the inner wall, has very strong weather resistance, and has at least 3 years of service life under extreme temperature (-65°C to 130°C), reduces the probability of damage of the pressure tank, and reduces the use cost.

[0019] (2) The utility model discloses through the first sealing element and the second sealing element and its dynamic sealing element, strengthen the leakproofness, make pressure tank can keep the leakproofness for a long time when using. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is an embodiment structure schematic diagram of the utility model of a kind of medical high weatherability pressure tank;

[0021] Figure 2 The utility model discloses Figure 1 The structure enlarged view of position A in the utility model;

[0022] Figure 3 The utility model discloses Figure 1 The structure enlarged view of position C in the utility model;

[0023] Figure 4 The utility model discloses Figure 1 The structure enlarged view of position D in the utility model;

[0024] Figure 5 The utility model discloses Figure 1 The structure enlarged view of position B in the utility model.

[0025] Reference signs:

[0026] 100, pressure tank;

[0027] 10, head;

[0028] 20, sealing plug;

[0029] 30, tank body;301, inflation cavity;304, dynamic sealing element;3041, arc-shaped end;3042, abutting sealing end;3044, supporting leg;

[0030] 40, flange;

[0031] 50, bag;501, outer wall;502, inner wall;

[0032] 601, fastening nut;

[0033] 602, flange cover;6021, first sealing element;6022, groove;

[0034] 603, fastening bolt;

[0035] 604 flange seat; 6041 second seal; 6042 raised end;

[0036] 70 pipe;

[0037] 80 pressure gauge;

[0038] 901 air charging and discharging valve; 902 air valve seat; 903 air outlet port. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be further explained in detail below by combining with the drawings and specific embodiments. Although the example embodiments are disclosed in the drawings, it should be understood that the utility model can be realized in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to facilitate a thorough understanding of the utility model and to convey the complete concept of the utility model to those skilled in the art.

[0040] In the description of the present specification, the description of the terms "some embodiments", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or features of the embodiments or examples described in the present specification without contradiction.

[0041] In the present utility model, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connected" can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to the specific circumstances.

[0042] To solve the above technical problems, please refer to Figures 1-5As shown, the embodiment provides a medical high-weatherability pressure tank 100, which comprises a tank body 30 and a head 10 arranged at both ends of the tank body 30, and the head 10 and the tank body 30 are fixedly connected through a flange plate 40; and a sealing plug 20 is filled at a position where the bent end of the tank body 30 is connected with the head 10.

[0043] The tank body 30 is internally provided with a capsule 50 surrounded by gas, and the capsule 50 is provided with a pipeline 70 at an inlet end, and the pipeline 70 is fixedly installed on the tank body 30 through a flange connector.

[0044] Further, the capsule 50 is a double-layer capsule body combined by an outer wall 501 and an inner wall 502, a cavity is arranged between the outer wall 501 and the inner wall 502, and a high-weatherability preparation is filled in the cavity; and the capsule 50 is made of high-weatherability, anti-aging and corrosion-resistant rubber material.

[0045] In the embodiment, the capsule 50 made of high-weatherability, anti-aging and corrosion-resistant rubber material is a double-layer capsule body combined by an outer wall 501 and an inner wall 502, has very strong weatherability, and a cavity is arranged between the outer wall 501 and the inner wall 502, and a high-weatherability preparation is filled in the cavity; through simulation verification, it has a service life of at least 3 years under extreme temperature (-65°C to 130°C), and reduces the probability of damage of the pressure tank.

[0046] Further, the tank body 30 is fixedly installed with a gas charging and discharging valve 901, gas is transported into the tank body through the gas charging and discharging valve, the gas charging and discharging valve 901 is provided with a valve seat 901 and is fixedly installed on the tank body 30 through a fastening screw, and a gas outlet port 903 of the gas charging and discharging valve 901 extends into the tank body 30, and a gas inlet port of the gas charging and discharging valve 901 is used for connecting a compressed gas system outside.

[0047] In the embodiment, the gas charging and discharging valve is used for transporting gas into the tank body 30.

[0048] Further, the flange connector comprises a flange cover 602, the flange cover 602 is welded to the tank body 30,

[0049] The flange connector further comprises a flange seat 604, and the capsule 50 is located between the flange seat 604 and the flange cover 602 and is sealingly connected.

[0050] Further, threaded holes are formed on the flange seat 604 and the flange cover 602, and fastening bolts 603 are screwed into the threaded holes, and the two ends of the fastening bolts 603 are screwed into fastening nuts 601, thereby realizing the connection between the flange seat 604 and the flange cover 602.

[0051] Further, the connecting groove of the flange seat 604 is filled with a second sealing member 6041, and the second sealing member 6041 is located at the bent end of the capsule and is integrally arranged with the capsule.

[0052] Further, the second sealing member 6041 is provided with a protruding end 6042 arranged in a corrugated shape.

[0053] Further, a first sealing member 6021 is arranged on the end face of the flange cover 602 at a position opposite to the protruding end 6042, and the first sealing member 6021 is provided with a groove 6022 for the protruding end 6042 to extend into; and the protruding end 6042 is closely attached to the inner wall of the groove 6022.

[0054] In this embodiment, when the fastening nuts 601 are tightened, the protruding end extends into the groove 6022, so that the protruding end is closely attached to the inner wall of the groove 6022, and since the protruding end 6042 arranged in a corrugated shape can effectively disperse external force, when pressure is borne, stress can be evenly distributed, avoiding the possibility of local stress concentration leading to sealing failure. Therefore, this design can prolong the service life of the sealing member.

[0055] Further, at least one set of inflation cavities 301 is formed on the inner wall of the cavity of the tank 30 at the inlet end of the pipeline 70; and a dynamic sealing member 304 is arranged in the gas passage between the inner wall of the tank 30 and the inner wall 502.

[0056] Further, the dynamic sealing member 304 is made of rubber material, and two sets of supporting legs 3044 are arranged on the dynamic sealing member 304, the supporting legs 3044 extend into the inflation cavities 301, the end of the supporting legs 3044 away from the flange plate position is arranged in an arc shape, thereby facilitating the gap between the supporting legs 3044 and the inflation cavities 301, facilitating the gas to enter the inside of the inflation cavities from the gap, and the supporting legs 3044 close to the flange plate position abut against the inner wall of the inflation cavities 301 and are closely attached.

[0057] Further, two sets of abutting sealing ends 3042 are arranged on the dynamic sealing member 304 away from the supporting legs 3044, and an arc-shaped end 3041 is arranged between the two sets of abutting sealing ends 3042.

[0058] In the embodiment, when the pressure tank is in working state, gas is delivered into the tank body 30 through the gas charging and discharging valve 901, and the gas enters the gas charging cavity 301 through the gas passage between the inner wall of the tank body 30 and the inner wall 502. At this time, under the action of the gas, the dynamic seal 304 is continuously pressed, so that the supporting leg 3044 slides along the inner wall of the gas charging cavity 301 until the arc-shaped end 3041 and the abutting seal end 3042 of the dynamic seal 304 abut against the inner wall 502, and the sealing property is improved by using gas pressure.

[0059] When the sealing tank is in non-working state, the gas in the tank body 30 is extracted through the gas charging and discharging valve, and the gas in the gas charging cavity is extracted from the gas passage between the inner wall of the tank body 30 and the inner wall 502. At this time, the gas pressure in the gas charging cavity is reduced, and the dynamic seal 304 falls back to the original position, thereby effectively avoiding aging, damage or deformation of the dynamic seal due to long-term fixed pressure.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A medical high weather resistance pressure tank characterized by, The utility model provides a kind of medical high weatherability pressure tank, including tank body and the head being arranged at both ends of tank body, and the head is fixedly connected with the tank body by flange plate;The tank body is provided with the capsule surrounded by gas inside, and the capsule is provided with pipeline on inlet end portion, and the pipeline is fixedly installed to the tank body by flange connector;The capsule adopts double-layer capsule body combined by outer wall and inner wall. 2.The medical high weatherability pressure tank according to claim 1, wherein, The tank body bending end is filled with sealing plug at the position connected with the head. 3.The medical high weatherability pressure tank according to claim 1, wherein, A cavity is arranged between the outer wall and the inner wall, and the cavity is filled with high weatherability preparation; The capsule is made of high weatherability, anti-aging and corrosion-resistant rubber material. 4.The medical high weatherability pressure tank according to claim 1, wherein, The tank body is provided with a gas charging and discharging valve, the gas charging and discharging valve is provided with a valve seat and is installed on the tank body, and a gas outlet port of the gas charging and discharging valve extends into the tank body. 5.The medical high weatherability pressure tank according to claim 1, wherein, The flange connector includes a flange cover, and the flange cover is welded to the tank body, The flange connector further includes a flange seat, and the capsule is located between the flange seat and the flange cover and is sealingly connected. 6.The medical high weatherability pressure tank according to claim 5, wherein, Threaded holes are formed in the flange seat and the flange cover, fastening bolts are threadedly connected in the threaded holes, both ends of the fastening bolts are threadedly connected with fastening nuts, and a second sealing member is filled in a connecting groove of the flange seat. 7.The medical high weatherability pressure tank according to claim 6, wherein, The second sealing member is located at a bending end of the capsule body and is integrally arranged with the capsule body, and the second sealing member is provided with a protruding end portion in a corrugated shape. 8.The medical high weatherability pressure tank according to claim 7, wherein, A first sealing member is arranged on an end face of the flange cover at a position opposite to the protruding end portion, the first sealing member is provided with a groove for the protruding end portion to extend into, and the protruding end portion is closely attached to an inner wall of the groove. 9.The medical high weatherability pressure tank according to claim 1, wherein, At least one set of inflation cavities are formed in an inner wall of the tank body, and a dynamic sealing member is arranged in a gas passage between the inner wall of the tank body and the inner wall, the dynamic sealing member is made of rubber material, the dynamic sealing member is provided with two supporting legs, and the supporting legs extend into the inflation cavities. 10.The medical high weatherability pressure tank according to claim 9, wherein, End portions of the supporting legs away from the flange plate are arranged in an arc shape, there is a gap between the supporting legs and the inflation cavities, the supporting legs close to the flange plate abut against and are closely attached to inner walls of the inflation cavities. Two sets of abutting seal ends are arranged on the dynamic seal away from the position of the foot, and an arc-shaped end is arranged between the two sets of abutting seal ends.

Images