CN112875070A

CN112875070A - Pressure storage tank

Info

Publication number: CN112875070A
Application number: CN202110286879.0A
Authority: CN
Inventors: 王振远; 邹瑜; 康宇; 谢勇; 陆东燕
Original assignee: Nantong Cimc Enric Food Equipment Co ltd; China International Marine Containers Group Co Ltd; CIMC Enric Investment Holdings Shenzhen Co Ltd
Current assignee: Zhongji Anruichun Technology Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-06-01

Abstract

The invention provides a pressure storage tank, the pressure storage tank is placed vertically, and the ratio of the height to the diameter of the pressure storage tank is less than 1, the pressure storage tank comprises: the top end enclosure is a convex end enclosure and comprises an end enclosure body and an annular first connecting ring which downwardly protrudes from the periphery of the end enclosure body; the bottom end enclosure comprises a flat bottom body with a plane bottom and a second connecting ring protruding upwards from the periphery of the flat bottom body, and the second connecting ring is butted with the first connecting ring so as to form a storage cavity together with the flat bottom body and the end enclosure body; the flat bottom body is provided with a feed inlet and a discharge outlet which are communicated with the storage cavity. The bottom of this flat bottom body is the plane, compares and is curved protruding type head in the bottom and can be in high province space to this reduces the whole height of jar body, satisfies comparatively strict high demand. And the open pore structure of this bottom compares in protruding type head open pore structure, can reduce the production of local high stress, improves the security performance of the jar body.

Description

Pressure storage tank

Technical Field

The invention relates to the technical field of pressure containers, in particular to a pressure storage tank.

Background

In the fields of food, chemical industry and the like, the height of a plurality of storage tanks for storing food and chemical media is limited by installation space. Therefore, the existing storage tank mostly adopts a structure of butt joint of two convex end enclosures and is designed into a short and fat structure. For the situation of extremely strict requirement on height, the storage tank is limited by height, so that the volume and the capacity of the storage tank are small, and the storage purpose can be achieved only by using a plurality of tank bodies.

Moreover, for a vertical tank with a high design pressure and a large-diameter interface at the bottom, when a structure that a convex end socket is provided with a large hole is adopted, the stress load borne by the vertical tank cannot be calculated by a conventional method, and large stress concentration can be generated at the position of the hole, so that the safety of the storage tank is influenced.

Disclosure of Invention

The invention aims to provide a pressure storage tank to solve the problems that a storage tank in the prior art is limited by an installation space due to a convex end socket, the volume is small, and the pressure at an opening is concentrated.

In order to solve the technical problems, the invention adopts the following technical scheme:

a pressure storage tank, the pressure storage tank is vertical place, and this pressure storage tank's height and diameter ratio are less than 1, the pressure storage tank includes: the top seal head is a convex seal head and comprises a seal head body and an annular first connecting ring which protrudes downwards from the periphery of the seal head body; the bottom end enclosure comprises a flat bottom body with a plane bottom and a second connecting ring protruding upwards from the periphery of the flat bottom body, and the second connecting ring is butted with the first connecting ring so as to form a storage cavity together with the flat bottom body and the end enclosure body; the flat bottom body is provided with a feed inlet and a discharge outlet which are communicated with the storage cavity.

According to one embodiment of the present invention, the inner surface of the flat bottom body is gradually inclined downward from the middle portion of the flat bottom body to the peripheral side; the discharge port is closer to the periphery of the flat bottom body than the feed port.

According to one embodiment of the invention, the inner surface of the flat bottom body and the inner surface of the second connecting ring are in circular arc transition connection.

According to one embodiment of the invention, the aperture of the feed opening is larger than the aperture of the discharge opening.

According to one embodiment of the invention, the feed inlet is located in the center of the flat bottom body; the discharge ports are arranged in a plurality of circumferential directions and are distributed on the periphery of the flat bottom body.

According to one embodiment of the invention, a plurality of connecting holes are arranged on the bottom of the flat bottom body around the feeding port; the pressure storage tank further comprises a sealing cover; the sealing cover is connected to the bottom sealing head through the connecting hole and the adaptive fastener, and seals the feeding hole.

According to one embodiment of the invention, the middle part of the seal head body is provided with a flange port in an upward protruding manner, and the flange port and the feed inlet are coaxial; the pressure storage tank further comprises a flange cover, and the flange cover is fittingly and hermetically arranged on the flange opening.

According to one embodiment of the invention, the thickness of the second coupling ring is identical to the thickness of the first coupling ring; the thickness of the flat bottom body is larger than that of the second connecting ring.

According to one embodiment of the invention, the flat bottom body and the second connecting ring are integrally formed.

According to one embodiment of the invention the ratio between the height and the inner diameter of the pressure tank is less than 1.

The invention also provides a pressure storage tank, the pressure storage tank is vertically placed, and the ratio of the height to the diameter of the pressure storage tank is less than 1, the pressure storage tank comprises: the top seal head is a convex seal head and comprises a seal head body and an annular first connecting ring which protrudes downwards from the periphery of the seal head body; the bottom end socket comprises a flat bottom body with a plane bottom and a second connecting ring protruding upwards from the periphery of the flat bottom body; the flat bottom body is provided with a feed inlet and a discharge outlet; and the upper end and the lower end of the shell ring are respectively butted with the first connecting ring and the second connecting ring.

According to one embodiment of the invention, the thickness of the connection of the shell ring and the first and second coupling rings is uniform.

According to the technical scheme, the pressure storage tank provided by the invention at least has the following advantages and positive effects:

firstly, the ratio of the height to the inner diameter (height-diameter ratio) of the pressure storage tank is less than 1, which shows that the pressure storage tank is different from a common vertical storage tank which is large in height and slender, but is of a 'squat' type with lower height and larger transverse dimension in the storage tank, so that the pressure storage tank is suitable for installation space with limited height in the industries of dairy products, pharmacy, food, wine making, chemical engineering and the like. Simultaneously, the bottom of the flat bottom body of the bottom head of this storage tank is the plane, compares and is curved protruding type head in the bottom, can further save space in height to this reduces the whole height of jar body, satisfies comparatively strict high demand. And because the bottom of flat bottom body is the plane, the open pore structure of this bottom compares in protruding type head open pore structure, can reduce the production of local high stress, improves the security performance of the jar body. Further, compared with a convex end socket with the same external dimension (height and diameter are consistent), the bottom end socket has larger capacity, and the volume utilization rate of the tank body is improved.

The invention also provides a pressure storage tank, which is additionally provided with a shell ring compared with the tank body. The upper end and the lower end of the shell ring are respectively butted with the first connecting ring and the second connecting ring to form a complete tank body. Due to the existence of the shell ring, the overall height of the tank body is increased, and the capacity is correspondingly increased, so that the storage requirement of the tank body with large capacity is met.

Drawings

Fig. 1 is a schematic structural view of a pressure tank according to a first embodiment of the present invention.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is a schematic structural view of a pressure tank in a second embodiment of the present invention.

The reference numerals are explained below:

1-top end enclosure, 10-end enclosure body, 11-first connecting ring, 13-flange cover, 101-flange opening,

3-bottom end enclosure, 30-flat bottom body, 32-second connecting ring, 301-feed inlet, 302-discharge outlet,

303-connecting hole,

5-cylindrical section.

Detailed Description

Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

The embodiment provides a pressure storage tank that is vertical setting, reduces a jar body height with this through the structure that improves pressure storage tank to satisfy jar body limit for height requirement, reach jar body's technology demand, adaptable have special requirement's equipment to height in trades such as dairy products, pharmacy, food, making wine, chemical industry.

First embodiment of a pressure tank

Referring to fig. 1, fig. 1 shows a specific structure of a pressure storage tank according to the present embodiment. The pressure storage tank comprises a top seal head 1 and a bottom seal head 3, wherein the top seal head 1 is a convex seal head, and the bottom seal head 3 is a flat-bottom seal head. The upper end and the lower end of the two seal heads are butted to form a storage cavity with a hollow interior for storing materials. The ratio of the height to the diameter of the pressure storage tank of the embodiment is less than 1, and the pressure storage tank is in a form of a squat tank body.

The ratio of the height to the diameter of the pressure tank is an aspect ratio. When the ratio of the height to the diameter of the tank body is larger, the height of the tank body is larger, and the tank body is in a slender shape and is generally a vertical powder tank. When the height-diameter ratio of the tank body is smaller (the height-diameter ratio is less than 1), the height is smaller, the capacity is larger, and the appearance of the tank body is in a short and fat shape. Such a dwarf-type can body is generally used in the field of food chemical industry to store media such as carbonated beverages.

In this embodiment, the design height and diameter of the pressure tank can be determined according to the height limit of the installation space, and the rationalization requirements for the requirement of the tank capacity and its diameter and height.

The height-diameter ratio of the pressure tank body of the embodiment is less than 1 and can even reach 1/3.

Specifically, the height of the pressure tank is identified as H in FIG. 1, which may range from 0.5m to 2 m. The diameter of the pressure tank is designated L in FIG. 1 and ranges from 0.5m to 5m in diameter. Under the condition of the same volume, the height of the traditional tank body adopting the biconvex seal head is at least 3-5 times of the height of the tank body; conventional tank heights can even be as high as ten or more meters, since the diameter can be smaller as the tank volume is smaller.

Therefore, the pressure storage tank of the embodiment can be better suitable for the working condition with extremely strict height requirement.

Further, the bottom end enclosure 3 has a larger capacity than a convex end enclosure with the same external dimension (height and diameter are consistent), and the volume utilization rate of the tank body is improved.

The top seal head 1 is a convex seal head and comprises a seal head body 10 and an annular first connecting ring 11 which protrudes downwards from the periphery of the seal head body 10. Specifically, the convex seal head comprises a spherical seal head, a butterfly seal head, an oval seal head and the like. Wherein, the end socket body 10 is in a spherical crown shape, and the first connecting ring 11 is a cylindrical straight edge. The end socket body 10 and the first connecting ring 11 can be integrally pressed and integrally formed, the joint of the end socket body and the first connecting ring is in smooth transition, stress distribution is uniform, and the stress condition of the joint is improved, so that higher pressure can be borne.

The bottom seal head 3 is a flat bottom seal head, and comprises a flat bottom body 30 with a flat bottom and a second connecting ring 32 protruding upwards from the periphery of the flat bottom body 30.

Wherein the cross-sectional profile of the flat bottom body 30 is circular; the second connecting ring 32 is a cylindrical straight-edge structure similar to the first connecting ring 11, and the second connecting ring 32 has the same thickness and the same outer diameter as the first connecting ring 11. The outer diameter of the flat bottom body 30 is equal to the outer diameter of the lower end edge of the header body 10, the outer diameter of the second coupling ring 32, and the outer diameter of the first coupling ring 11.

In the present embodiment, the flat bottom body 30 and the second connecting ring 32 are integrally formed by machining using a bowl-shaped forging. Wherein, the thickness of the flat bottom body 30 is larger than the thickness of the second connecting ring 32, and the outer diameter of the flat bottom body 30 is the same as the outer diameter of the second connecting ring 32.

Referring to fig. 2, in order to reduce the local stress at the joint due to the geometric discontinuity, the inner surface of the flat bottom body 30 and the inner surface of the second connecting ring 32 are in arc transition connection, so as to improve the stress state at the joint.

In the assembling process, the second connecting ring 32 is butted with the first connecting ring 11 up and down, and the thickness of the joint of the second connecting ring and the first connecting ring is consistent and smooth, so that the second connecting ring, the flat bottom body 30 and the end socket body 10 jointly enclose to form a complete vertical storage tank with a hollow storage cavity. The flat bottom body 30 is provided with a feed inlet 301 and a discharge outlet 302 which are communicated with the storage cavity, thereby realizing the feeding and discharging of materials at the bottom of the tank body.

Because the bottom of flat bottom body 30 is the plane, the bottom of above-mentioned storage tank can the level laminating on the workstation or on the support frame, compares in the structure that the bottom of traditional vertical storage tank needs the landing leg, has saved the landing leg, has not only reduced the quantity of part, has still reduced the landing leg simultaneously and has taken in the direction of height to this reduces the whole height of jar body, satisfies comparatively strict high demand. Moreover, because the bottom of the flat-bottom body 30 is a plane, compared with a convex seal head opening structure, the opening structure of the bottom can reduce the generation of local high stress and improve the safety performance of the tank body.

The flat bottom body 30 is provided with a feed inlet 301 and a discharge outlet 302. Due to the existence of the plane, the opening part does not have obvious shape mutation, and high local stress is not generated. Therefore, the flat-bottom sealing head structure is suitable for a storage tank with a high design pressure and a large-diameter interface below the storage tank, and when the height of the installation space is limited, the flat-bottom sealing head structure can reduce the generation of local high stress and improve the safety performance of the tank body.

Further, the inner surface of the flat bottom body 30 is gradually inclined downward from the middle portion of the flat bottom body 30 toward the peripheral side.

In fig. 1, there is a gap in the height direction between the inner surface of the flat bottom body 30 and the straight dotted line L1.

The inner surface of the flat bottom body 30 is inclined downward from the middle part to the peripheral side with the highest point at the middle part, i.e. the middle part is high and the outer side is low. The concrete expression is as follows: the cross-sectional profile of the inner surface of the flat bottom body 30 is a smooth curve, the slope of the curve is gentle, the stress is continuously and uniformly changed, and the stress state is good. The inner surface of the flat bottom body 30 and the inner surface of the second connecting ring 32 are in arc transition connection, and the stress is better.

The discharge ports 302 are distributed on the flat bottom body 30 at positions closer to the periphery of the flat bottom body 30 than the feed ports 301 so as to facilitate discharging. That is, the outlet 302 is located lower than the inlet 301. So, material in the jar can flow towards discharge gate 302 along the internal surface of flat bottom body is spontaneous under the action of gravity when unloading to satisfy the tank bottoms of the great medium of consistency and arrange the requirement clean, reduce the circumstances that the material was piled up.

Preferably, the feed inlet 301 is located at the center of the flat bottom body 30, and the discharge outlet 302 is located on the periphery of the flat bottom body 30. The design of the side of the discharge port 302 can facilitate the discharge of materials as much as possible, and avoid the generation of dead angles of discharging. Meanwhile, the plurality of discharging holes 302 are circumferentially distributed on the periphery of the flat bottom body 30. Wherein, the aperture of the feed inlet 301 is larger than that of the discharge outlet 302, so as to improve the feeding efficiency. The aperture of the feed inlet 301 is larger, and can be called as a large hole on the top seal head 1.

Of course, in other embodiments, on the premise that the discharge holes 302 are lower than the feed holes 301, the distribution positions and specific numbers of the feed holes 301 and the discharge holes 302 may be specifically designed according to the requirement, and are not limited to the above case.

In other embodiments, the inner surface of the flat bottom body 30 may be flat, or the middle of the inner surface may be concave, and the flat or concave structure is more suitable for storing a medium with low viscosity.

In this embodiment, a plurality of connecting holes 303 are formed on the bottom of the flat bottom body 30 around the feeding hole 301, and the connecting holes 303 are blind holes and are internally provided with threads. The pressure tank further comprises a sealing cover. The external dimension of the sealing cover is matched with the caliber of the feed inlet 301. The sealing cover is connected to the bottom head 3 through a connecting hole 303 and a matched bolt fastener, and seals the feeding hole 301. Above-mentioned sealed lid and bottom head 3 are for dismantling the connection, convenient loading and unloading and maintenance.

In this embodiment, a flange opening 101 protrudes upward from the middle of the closure body 10, the flange opening 101 is coaxial with the feed opening 301, and the flange opening 101 can be used for adding a pipe orifice. The pressure tank further comprises a flange cover 13, and the flange cover 13 is fittingly and hermetically arranged on the flange opening 101. Moreover, the flange cover 13 is provided with certain technical pipe orifices, such as a liquid level meter orifice, a thermometer orifice and the like.

In summary, the pressure storage tank provided by the invention at least has the following advantages and positive effects:

above-mentioned pressure storage tank is through replacing the structural design of convex head as the end with flat head as the end, satisfies jar body limit for height requirement, satisfies jar body exhaust demand, improves production efficiency, shortens the preparation time limit for a project. The method specifically comprises the following steps: the ratio of the height to the inner diameter (height to diameter) of the pressure tank is less than 1, which means that the tank is not the same as the common vertical tank with larger height and slender type, but is a 'squat' type with lower height and larger transverse dimension in the tank to adapt to the installation space with limited height. Simultaneously, the bottom of the flat bottom body 30 of the bottom head 3 of the storage tank is a plane, and is an arc-shaped convex head compared with the bottom, so that the space can be further saved in height, the overall height of the tank body is reduced, and the strict height requirement is met. Moreover, because the bottom of the flat-bottom body 30 is a plane, compared with the open pore structure of a convex seal head, the open pore structure of the bottom can reduce the generation of local high stress and improve the safety performance of the tank body.

Second embodiment of a pressure tank

Referring to fig. 3, the present invention further provides another pressure storage tank, wherein the ratio of the height to the diameter of the pressure storage tank is less than 1, which is a "squat" structure. The pressure storage tank comprises a top seal head 1, a bottom seal head 3 and a shell ring 5, wherein the upper end and the lower end of the shell ring 5 are respectively butted with a first connecting ring 11 and a second connecting ring 32.

Compared with the storage tank with only the top end socket 1 and the bottom end socket 3 in the first embodiment, the pressure storage tank has the advantages that the whole height is increased due to the addition of the cylinder section 5, the volume of the tank body is also enlarged, and the requirement of the large volume of the tank body is met.

The top seal head 1 is a convex seal head, and comprises a seal head body 10 and an annular first connecting ring 11 which protrudes downwards from the periphery of the seal head body 10. The bottom seal head 3 comprises a flat bottom body 30 with a flat bottom and a second connecting ring 32 protruding upwards from the periphery of the flat bottom body 30, and a feed inlet 301 and a discharge outlet 302 communicated with the storage cavity are arranged on the flat bottom body 30, so that materials can enter and exit from the bottom of the tank body. The top seal head 1 and the bottom seal head 3 are both of an integrally formed structure; the first connecting ring 11 and the first connecting ring 11 are both cylindrical straight edges, and the thickness and the outer diameter of the first connecting ring and the first connecting ring are consistent.

The thickness and the outer diameter of the shell ring 5 are respectively consistent with the thickness and the outer diameter of each connecting ring.

In the assembling process, the upper end of the shell ring 5 is butted with the first connecting ring 11 by welding, the inner side and the outer side of the shell ring 5 are respectively flushed with the inner side and the outer side of the first connecting ring 11, the thicknesses of the joints of the inner side and the outer side are consistent, and the shell ring 5 and the top seal head 1 are connected in a smooth transition mode to realize welding fixation. Moreover, in order to ensure that the joint of the shell ring 5 and the end enclosure is not easy to damage, the welding seam of the joint is completely welded. And then, the lower end of the shell ring 5 is butted with the second connecting ring 32 by the same operation, so that the thickness of the joint of the shell ring 5 and the second connecting ring 32 is consistent to form smooth transition, and finally, the shell ring 5, the top seal head 1 and the bottom seal head 3 are enclosed to form a complete vertical storage tank with a hollow storage cavity.

In this embodiment, the upper and lower both ends of shell ring 5 dock with top head 1, bottom head 3 respectively, and its junction is smooth transition to avoid the junction to produce great local stress, guaranteed that the stress is good, the security performance of the jar body has obtained the promotion.

Further, the inner surface of the flat bottom body 30 in the present embodiment is gradually inclined downward from the middle portion of the flat bottom body 30 toward the peripheral side; the outlet 302 is closer to the periphery of the flat bottom body 30 than the inlet 301. When the outlet 302 is closer to the periphery of the flat bottom body 30 than the inlet 301, it indicates that the outlet 302 is lower than the inlet 301. So, the material in the jar can flow towards discharge gate 302 spontaneously under the action of gravity when unloading to satisfy the requirement of tank bottoms row clean, avoid the material condition of piling up.

In conclusion, the pressure storage tank of this embodiment can satisfy jar body limit for height requirement through replacing the structural design of convex head as the end with flat head as the end, satisfies jar body exhaust demand to can add the shell ring according to jar body total volume demand, thereby enlarge the capacity, improve production efficiency with this, shorten the preparation time limit for a project.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. A pressure storage tank, characterized in that, pressure storage tank is vertical placement, and this pressure storage tank's height and diameter ratio are less than 1, pressure storage tank includes:

the top seal head is a convex seal head and comprises a seal head body and an annular first connecting ring which protrudes downwards from the periphery of the seal head body;

the bottom end enclosure comprises a flat bottom body with a plane bottom and a second connecting ring protruding upwards from the periphery of the flat bottom body, and the second connecting ring is butted with the first connecting ring so as to form a storage cavity together with the flat bottom body and the end enclosure body; the flat bottom body is provided with a feed inlet and a discharge outlet which are communicated with the storage cavity.

2. The pressure tank of claim 1, wherein:

the inner surface of the flat bottom body is gradually inclined downwards from the middle part of the flat bottom body to the peripheral side;

the discharge port is closer to the periphery of the flat bottom body than the feed port.

3. The pressure tank of claim 1, wherein:

the inner surface of the flat bottom body is in arc transition connection with the inner surface of the second connecting ring.

4. The pressure tank of claim 1, wherein:

the aperture of the feed inlet is larger than that of the discharge outlet.

5. The pressure tank of claim 4, wherein:

the feed inlet is positioned in the center of the flat bottom body;

the discharge ports are arranged in a plurality of circumferential directions and are distributed on the periphery of the flat bottom body.

6. The pressure tank of claim 1, wherein:

a plurality of connecting holes are formed in the bottom of the flat bottom body around the feeding port; the pressure storage tank further comprises a sealing cover; the sealing cover is connected to the bottom sealing head through the connecting hole and the adaptive fastener, and seals the feeding hole.

7. The pressure tank of claim 1, wherein:

the middle part of the seal head body is provided with a flange port in an upward protruding mode, and the flange port is coaxial with the feed inlet; the pressure storage tank further comprises a flange cover, and the flange cover is fittingly and hermetically arranged on the flange opening.

8. The pressure tank of claim 1, wherein:

the thickness of the second connecting ring is consistent with that of the first connecting ring;

the thickness of the flat bottom body is larger than that of the second connecting ring.

9. Pressure tank according to any of claims 1-8, characterized in that:

the flat bottom body and the second connecting ring are integrally formed.

10. The pressure tank of claim 1, wherein:

the ratio of the height to the inner diameter of the pressure tank is less than 1.

11. A pressure storage tank, characterized in that, pressure storage tank is vertical placement, and this pressure storage tank's height and diameter ratio are less than 1, pressure storage tank includes:

the bottom end socket comprises a flat bottom body with a plane bottom and a second connecting ring protruding upwards from the periphery of the flat bottom body; the flat bottom body is provided with a feed inlet and a discharge outlet;

and the upper end and the lower end of the shell ring are respectively butted with the first connecting ring and the second connecting ring.

12. The pressure tank of claim 11, wherein:

the thicknesses of the connection parts of the shell ring and the first connecting ring and the connection parts of the shell ring and the second connecting ring are consistent.