High sealing high temperature resistant pressure tank

Abstract

The application provides a high-sealing high-temperature-resistant pressure tank, which comprises a cylinder body, upper and lower end covers arranged on the upper and lower ends of the cylinder body for sealing, and a bag arranged in the cylinder body, wherein the upper end cover and the bag are sealed and connected through a first sealing assembly, and the lower end cover and the bag are sealed and connected through a second sealing assembly. The utility model drives the sealing piece to move towards the position of the air bag through the extension end of the hydraulic cylinder, so that the sealing block extends into the sealing cavity, a control valve is opened, and the sealing medium is transported into the sealing cavity through the channel. At this time, the sealing medium flows into the sealing cavity, the sealing block is stressed, and at the same time, the sealing block is pushed by the hydraulic cylinder, an upward force is generated, the sealing block is stressed and extruded with the inner wall of the sealing cavity, an ultrahigh contact pressure is generated, and the sealing purpose is achieved. The problem of excessive deformation of the rubber ring caused by the traditional compression structure can be solved.

Description

Technical Field

[0001] This utility model belongs to the field of pressure vessel technology, and specifically relates to a high-sealing, high-temperature resistant pressure vessel. Background Technology

[0002] The pressure tank includes a cylinder, end caps, air bladder, inflation / deflation device, inlet / outlet ports, and pressure monitoring components, all made of carbon steel or stainless steel. In use, the compressibility of the air inside the tank is used to regulate and store water volume and maintain the required pressure.

[0003] In practical applications, the upper atmospheric sealing surface experiences a large pressure difference. To ensure optimal contact between the end faces, a traditional compression-type structure is used for initial sealing. However, the sealing rings installed inside the pressure tank are mostly made of rubber. Due to the low strength of rubber sealing rings, the rigid compression of the compression-type structure can cause local deformation rates of the sealing ring to exceed 40%, which can easily damage the sealing ring.

[0004] Therefore, how to solve the defects in the existing technology has become one of the urgent problems to be solved in the field of pressure tank technology. Utility Model Content

[0005] In view of the problems existing in the background art, the present invention provides a high-sealing, high-temperature resistant pressure tank, comprising,

[0006] cylindrical body;

[0007] and upper and lower sealing heads disposed at the upper and lower ends of the cylinder for sealing;

[0008] Furthermore, a bladder is provided inside the cylindrical body.

[0009] Furthermore, the upper sealing head and the bladder are sealed together by a first sealing assembly.

[0010] The lower end cap and the bladder are sealed together by a second sealing assembly.

[0011] Optionally, the first sealing assembly includes a plug.

[0012] Furthermore, a hydraulic cylinder is provided on the plug.

[0013] The protruding end of the hydraulic cylinder extends into the plug.

[0014] The sealing element is fixed in place by fastening screws.

[0015] The seal passes through the upper end cap.

[0016] And it extends into the sac.

[0017] Optionally, the seal located inside the head is externally wrapped with a wrapping layer.

[0018] Optionally, a sealed cavity is formed on the inner wall of the airbag.

[0019] Furthermore, a sealing block is provided inside the sealed cavity.

[0020] The sealing block is disposed on the sealing end of the seal, away from the hydraulic cylinder.

[0021] It is also integrally formed with the sealing end.

[0022] Optionally, the plug is provided with a channel.

[0023] And it is connected to the sealed cavity through a channel.

[0024] Furthermore, a control valve is installed on the channel of the plug.

[0025] Optionally, the bladder located away from the first seal is configured with a bend.

[0026] And it fits tightly against the flange seal of the second sealing assembly.

[0027] Furthermore, the flange seal is fixedly installed between the bladder and the lower end cap by bolts.

[0028] Optionally, a second sealing joint is provided on the inner wall of the bladder.

[0029] Furthermore, a locking block is provided on one side of the second sealing joint.

[0030] Furthermore, the flange seal has a groove for the locking block to extend into.

[0031] Furthermore, the card block is used in conjunction with the card slot to perform a snap-fit ​​connection.

[0032] Optionally, a groove for storing steel balls is provided on the inner wall of the second sealing joint away from the card block.

[0033] Furthermore, the inner wall of the tank is in close contact with the outer wall of the steel ball;

[0034] The second sealing joint is provided with a first sealing joint that fits tightly against it.

[0035] When the first sealing joint and the second sealing joint are in the installation state

[0036] The steel ball extending from the groove body enters the semi-circular groove of the first sealing joint.

[0037] Perform the card connection.

[0038] Optionally, the second sealing joint is provided with a sealing gasket integrally formed therewith.

[0039] Furthermore, the sealing gasket is provided with an outwardly protruding end.

[0040] The protruding end engages with the groove of the first sealing joint for a snap-fit ​​connection.

[0041] In summary, the beneficial effects of this utility model are:

[0042] This invention activates a hydraulic cylinder, whose extended end moves the sealing element toward the airbag, causing the sealing block to extend into the sealing cavity. Simultaneously, a control valve is opened, allowing the sealing medium (water or ethylene glycol solution) to be delivered into the sealing cavity through a channel. As the sealing medium flows into the cavity, the sealing block is subjected to force. Furthermore, the hydraulic cylinder pushes the sealing block, generating an upward force. This force causes the sealing block to press against the inner wall of the sealing cavity, creating extremely high contact pressure to achieve a seal. This design also solves the problem of excessive deformation of the rubber ring caused by traditional compression structures. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the high-sealing, high-temperature resistant pressure tank of this utility model;

[0044] Figure 2 This utility model Figure 1 Enlarged view of the structure at position A in the middle;

[0045] Figure 3 This utility model Figure 1 Enlarged view of the structure at position B in the middle;

[0046] Figure 4 This utility model Figure 3 Enlarged view of the structure at position C.

[0047] Figure label:

[0048] 100. High-temperature pressure tank;

[0049] 10. Hanging lugs;

[0050] 20. Top end cap;

[0051] 30. Cylinder body;

[0052] 40. Sac;

[0053] 50. Lower end cap;

[0054] 60. Support leg;

[0055] 701. Hydraulic cylinder; 702. Plug; 703. Sealing block; 704. Winding layer; 705. Seal; 707. Sealing end; 708. Sealing cavity;

[0056] 801. Flange seal; 802. Bolt; 803. Adjusting bolt; 804. First sealing joint; 805. Sealing gasket; 806. Protruding end; 807. Second sealing joint; 808. Locking block; 809. Steel ball. Detailed Implementation

[0057] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0058] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0059] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0060] The pressure tank includes a cylinder, end caps, air bladder, inflation / deflation device, inlet / outlet ports, and pressure monitoring components, all made of carbon steel or stainless steel. In use, the compressibility of the air inside the tank is used to regulate and store water volume and maintain the required pressure.

[0061] In practical applications, the upper sealing surface of the top end cap experiences a large pressure difference. To ensure that the end face always maintains optimal contact, a traditional compression structure is used to achieve initial sealing. However, in actual applications, the rigid compression of the compression structure can cause the local deformation rate of the sealing ring to exceed 40%, which can easily damage the sealing ring.

[0062] like Figure 1-4 As shown, this embodiment provides a high-sealing, high-temperature resistant pressure tank 100, including a cylindrical body 30, and an upper end cap 20 and a lower end cap 50 disposed at the upper and lower ends of the cylindrical body 30 for sealing. A bladder 40 is disposed inside the cylindrical body 30, and the upper end cap 20 and the bladder 40 are sealed together by a first sealing assembly.

[0063] The lower end cap 50 and the bladder 40 are sealed together by a second sealing assembly.

[0064] Furthermore, the first sealing assembly includes a plug 702, and a hydraulic cylinder 701 is provided on the plug 702. The hydraulic cylinder 701 is a CD250 telescopic hydraulic cylinder. The protruding end of the hydraulic cylinder 701 extends into the plug 702 and is fixedly connected to the sealing element 705 by fastening screws. The sealing element 705 passes through the upper sealing head 20 and extends into the bladder 40.

[0065] Furthermore, the sealing element 705 located inside the head is externally wrapped with a winding layer 704.

[0066] Furthermore, a sealing cavity 708 is provided on the inner wall of the airbag, and a sealing block 703 is provided in the sealing cavity 708. The sealing block 703 is provided on the sealing end 707 of the sealing member 705 away from the hydraulic cylinder 701, and is integrally formed with the sealing end 707.

[0067] Furthermore, the plug 702 has a channel that connects to the sealing cavity 708, and a control valve is provided on the channel of the plug. In actual application, the assembly of the pipe assembly is completed in advance, the control valve is opened, and the sealing medium (water or ethylene glycol solution) is transported to the sealing cavity 708 through the channel.

[0068] In this embodiment, by activating the hydraulic cylinder 701, the extended end of the hydraulic cylinder drives the sealing element to move toward the position of the airbag, so that the sealing block 703 extends into the sealing cavity 708. At the same time, the control valve is opened to deliver the sealing medium (water or ethylene glycol solution) into the sealing cavity 708 through the channel. At this time, the sealing medium flows into the sealing cavity, the sealing block is subjected to force, and at the same time, due to the hydraulic cylinder pushing the sealing block, an upward force is generated, which causes the sealing block to be subjected to force and squeeze against the inner wall of the sealing cavity to generate ultra-high contact pressure to achieve the sealing purpose. This can also solve the problem of excessive deformation of the rubber ring caused by the traditional compression structure.

[0069] Furthermore, the bladder, which is away from the first seal, is bent and closely fitted with the flange seal 801 of the second sealing assembly, and the flange seal 801 is fixedly installed between the bladder and the lower end cap by bolts 802.

[0070] Furthermore, the inner wall of the bladder 40 is provided with a second sealing joint 807 by means of welding or other fixed connection, and a locking block 808 is provided on one side of the second sealing joint 807. The flange seal 801 is provided with a slot for the locking block 808 to extend into, and the locking block and the slot are used to engage and connect.

[0071] Furthermore, a groove for storing steel balls 809 is provided on the inner wall of the second sealing joint 807 away from the card block 808, and the inner wall of the groove is in close contact with the outer wall of the steel balls.

[0072] Furthermore, the second sealing joint 807 is provided with a first sealing joint 804 that is in close contact with it. When the first sealing joint and the second sealing joint are in the installation state, the steel ball 809 extending out of the groove extends into the semi-circular groove of the first sealing joint 804 for engaging connection.

[0073] Furthermore, the second sealing joint 807 is provided with a sealing gasket 805 integrally formed therewith, and the sealing gasket 805 is provided with an outwardly protruding end 806.

[0074] Furthermore, when the first sealing joint 804 is installed on the lower end cap 50 by adjusting bolt 803, the steel ball 809 automatically extends into the semi-circular groove of the first sealing joint 804 for engaging connection. At the same time, the protruding end 806 provided on the sealing gasket 805 automatically extends into the groove on the first sealing joint 804 for engaging connection, so that the longitudinal end of the sealing gasket and the longitudinal end of the second sealing joint are tightly attached.

[0075] In this embodiment, the sealing performance can be achieved by using the first sealing joint and the second sealing joint together. Since the bladder, which is far from the first sealing element, is bent and closely attached to the flange seal 801 of the second sealing assembly, it can achieve the purpose of a double leak-proof design.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-sealing, high-temperature resistant pressure tank, characterized in that, include, cylindrical body; and upper and lower sealing heads disposed at the upper and lower ends of the cylinder for sealing; Furthermore, a bladder is provided inside the cylindrical body. Furthermore, the upper sealing head and the bladder are sealed together by a first sealing assembly. The lower end cap and the bladder are sealed together by a second sealing assembly; The first sealing assembly includes a plug, Furthermore, a hydraulic cylinder is provided on the plug. The protruding end of the hydraulic cylinder extends into the plug. The sealing element is fixed in place by fastening screws. The seal passes through the upper end cap. And it extends into the sac; The seal located inside the head is externally wrapped with a winding layer. A sealed cavity is formed on the inner wall of the bladder. Furthermore, a sealing block is provided inside the sealed cavity. The sealing block is disposed on the sealing end of the seal, away from the hydraulic cylinder. And it is integrally formed with the sealing end. The plug has a channel. And it is connected to the sealed cavity through a channel. Furthermore, a control valve is installed on the channel of the plug.

2. The high-sealing, high-temperature resistant pressure tank according to claim 1, characterized in that, The bladder located away from the first sealing assembly is configured with a bend. And it fits tightly against the flange seal of the second sealing assembly. Furthermore, the flange seal is fixedly installed between the bladder and the lower end cap by bolts.

3. The high-sealing, high-temperature resistant pressure tank according to claim 2, characterized in that, The inner wall of the bladder is provided with a second sealing joint. Furthermore, a locking block is provided on one side of the second sealing joint. Furthermore, the flange seal has a groove for the locking block to extend into. Furthermore, the card block is used in conjunction with the card slot to perform a snap-fit ​​connection.

4. A high-sealing, high-temperature resistant pressure tank according to claim 3, characterized in that, A groove for storing steel balls is provided on the inner wall of the second sealing joint away from the card block. Furthermore, the inner wall of the tank is in close contact with the outer wall of the steel ball; The second sealing joint is provided with a first sealing joint that fits tightly against it. When the first sealing joint and the second sealing joint are in the installation state The steel ball extending from the groove body enters the semi-circular groove of the first sealing joint. Perform the card connection.

5. A high-sealing, high-temperature resistant pressure tank according to claim 4, characterized in that, The second sealing joint is provided with a sealing gasket that is integrally formed with it. Furthermore, the sealing gasket is provided with an outwardly protruding end. The protruding end engages with the groove of the first sealing joint for a snap-fit ​​connection.

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