Valve structure for petrochemical industry

Abstract

The invention relates to the technical field of petrochemical engineering, in particular to a petrochemical engineering valve structure which comprises a valve body, a valve pipe is arranged on the side face of the valve body, a connecting shell is arranged at the top of the valve body, a connecting flange plate is arranged on the side face of the valve pipe, and an inner buffering device is arranged in the valve body. An anti-corrosion device is arranged in the valve body, and a valve control device is arranged in the connecting shell. According to the valve structure for petrochemical engineering, by arranging an anti-corrosion device, a first adhesion belt and a blocking pad, when the blocking pad is damaged and cannot be adhered, microcapsules can release repairing substances, damaged parts are automatically filled and repaired, the integrity and protection performance of a coating are kept, the service life of the coating and the normal operation time of a valve are further prolonged, and the service life of the valve is prolonged. And an anti-corrosion assembly can be arranged in the valve of the device, internal pipe fittings and sealing pieces are not prone to being damaged, the service life and the sealing effect are not affected, and practicability is high.

Description

Technical Field

[0001] The invention relates to the technical field of petrochemical industry, in particular to a valve structure for petrochemical industry. Background Art

[0002] As an important pillar industry of the global economy, the petrochemical industry plays an extremely critical role in energy production, chemical raw material supply, material manufacturing and other aspects. In view of the particularity of the petrochemical industry and the many problems of traditional valves, in order to ensure the safe, stable and efficient operation of the petrochemical production process, it has become an urgent task to develop a new type of petrochemical valve structure.

[0003] The prior art discloses a valve structure for petrochemical industry with the publication number of CN221401728U, which includes a valve body, the upper surface of the valve body is connected with a valve seat, the upper surface of the valve seat is fixedly connected with a valve cover, and a valve stem is provided between the valve cover and the valve seat. The above device opens the valve by rotating the valve stem upward, at which time the valve stem and the valve disc move in a direction away from the horizontal plate, the rubber connected to the valve stem moves upward and squeezes the spring, and the spring is squeezed by the elastic force to squeeze the sealing gasket, so that the valve stem and the valve seat are sealed. When the valve stem is rotated downward to close the valve, the valve stem and the valve disc move in the direction of the horizontal plate, the valve disc is inserted into the inner surface of the horizontal plate, and the first sealing ring and the second sealing ring are sealed. When the valve is controlled to be opened or closed, a structure to ensure sealing is provided, which avoids the leakage of oil, eliminates certain safety hazards, and is more practical.

[0004] The above-mentioned petrochemical valve structure is provided with a structure to ensure sealing when controlling the valve to be opened or closed, thereby avoiding oil leakage, eliminating certain safety hazards, and being more practical. However, no anti-corrosion components are provided inside the valve of the above-mentioned device, and the internal pipe fittings and seals are easily damaged, which affects the service life and sealing effect, and has poor practicality. Therefore, it is very necessary to design a petrochemical valve structure with strong practicality. Summary of the invention

[0005] The object of the present invention is to provide a valve structure for petrochemical industry to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a valve structure for petrochemical industry, comprising a valve body, a valve pipe is arranged on the side of the valve body, a connecting shell is arranged on the top of the valve body, a connecting flange is arranged on the side of the valve pipe, an internal buffer device is arranged inside the valve body, an anti-corrosion device is arranged inside the valve body, and a valve control device is arranged inside the connecting shell.

[0007] The anti-corrosion device includes an inner anti-corrosion sealing ring, a water passing pipe, an inner coating ring plate, a microcapsule, a first adhesive tape, a second adhesive tape and a sealing pad. The inner anti-corrosion sealing ring is fixedly connected to both sides of the inner wall of the valve body, the inner anti-corrosion sealing ring is connected to the surface of the valve pipe, the water passing pipe is fixedly connected to the inner ring of the inner anti-corrosion sealing ring, the inner coating ring plate is fixedly connected to the inner ring of the water passing pipe, the microcapsule is fixedly connected to the inner ring of the inner coating ring plate, the first adhesive tape is bonded to the side of the second adhesive tape close to each other, the sealing pad on the left side is fixedly connected to the bottom of the side of the first adhesive tape, and the sealing pad on the right side is fixedly connected to the bottom of the side of the second adhesive tape.

[0008] Preferably, the internal buffer device includes a side end connecting plate, a connecting arc plate, a placement frame plate, an inner spring member, a supporting column member, an elastic connecting pad and a side end connecting block, the side end connecting plate being fixedly connected to the inner bottom end of the valve body, the connecting arc plate being fixedly connected to the top of the side end connecting plate, the supporting column member being fixedly connected to the back side of the connecting arc plate, the elastic connecting pad being fixedly connected to the right side of the surface of the supporting column member, the back side of the elastic connecting pad being connected to the front side of the inner anti-corrosion sealing ring member, the front side of the elastic connecting pad being connected to the front side of the inner ring of the placement frame plate, the placement frame plate being fixedly connected to the inner sides of the valve body, the side end connecting block being fixedly connected to the front side of the placement frame plate, the inner spring member being fixedly connected to the bottom of the side end connecting block, and the bottom of the inner spring member being fixedly connected to the inner bottom end of the valve body.

[0009] Preferably, the valve control device includes a top connecting piece, a handwheel, a limiting ring, an inner valve stem, a nut ring, a surface elastic connecting pad, an inner connecting disk, an annular pad and a valve disc, the limiting ring is fixedly connected to the top of the valve body, the inner valve stem is slidably connected to the inner ring of the limiting ring, the handwheel is fixedly connected to the surface of the inner valve stem near the top, the top connecting piece is fixedly connected to the top of the inner valve stem, the inner ring of the nut ring is provided with an internal thread groove, the nut ring is threadedly connected to the surface top of the inner valve stem, the surface elastic connecting pad is fixedly connected to the surface of the nut ring, the surface elastic connecting pad is slidably connected to the inside of the valve body, the inner connecting disk is fixedly connected to the middle part of the surface of the surface elastic connecting pad, the annular pad is fixedly connected to the top of the inner connecting disk, the annular pad is slidably connected to the inner top of the valve body, and the valve disc is fixedly connected to the bottom of the inner valve stem.

[0010] Preferably, the inner ring of the placement frame is provided with an anti-corrosion ceramic coating, which has excellent corrosion resistance, wear resistance and high temperature resistance, and can effectively prevent the corrosive components in the petrochemical medium from eroding the internal structure of the valve, reduce the maintenance cost of the valve, and improve the overall performance and reliability of the valve.

[0011] Preferably, a through groove is formed on the top of the valve body, and the aperture of the through groove is matched with the inner diameter of the limiting ring.

[0012] Preferably, the top of the microcapsule is connected to a connecting strip, the first adhesive tape is connected to the left side of the top of the connecting strip, and the second adhesive tape is connected to the right side of the top of the connecting strip.

[0013] Preferably, a strip-shaped through groove is provided on the top of the connecting strip, and the sealing pad is connected to the top of the connecting strip. The provision of the strip-shaped through groove enables the microcapsules to release repair substances, automatically fill and repair damaged parts, and maintain the integrity and protective performance of the coating.

[0014] Preferably, the valve tube extends through the side of the valve body and is connected to both sides of the interior of the valve body, and the inner diameter of the inner anti-corrosion sealing ring is adapted to the diameter of the valve tube.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The valve structure for petrochemical industry is provided with an anti-corrosion device. When the first adhesive tape, the sealing pad and the sealing pad are damaged and cannot be adhered, the microcapsule can release the repair substance, automatically fill and repair the damaged part, maintain the integrity and protective performance of the coating, further extend the service life of the coating and the normal operation time of the valve, so that the anti-corrosion components can be set inside the valve of the device, and the internal pipes and seals are not easily damaged to affect the service life and sealing effect, and the practicability is strong.

[0017] 2. The petrochemical valve structure is provided with an internal buffer device. When the internal medium passes through, the internal spring member, the side end connecting block and the elastic connecting pad can play a buffering role, so that the medium can flow more smoothly when passing through the valve, reduce the impact and turbulence of the fluid, reduce the pressure loss and vibration inside the valve, thereby improving the working efficiency and stability of the valve.

[0018] 3. The valve structure for petrochemical industry is provided with a valve control device. The bottom end of the valve disc is connected to the inner ring of the placement frame plate and slides against the inner ring of the placement frame plate to control the opening and closing of the valve. It is easy to use. An internal buffer device is provided inside the valve body. The valve disc and the placement frame plate are connected by magnetic attraction. When the valve is closed, the magnetic attraction force is used to adsorb possible metal impurities outside the sealing surface to prevent them from entering between the sealing surfaces and affecting the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the valve body, connecting flange and internal buffer device of the present invention;

[0022] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the valve control device of the present invention;

[0024] Figure 5 For the present invention Figure 4 The enlarged structural diagram at B in the middle;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the anti-corrosion device of the present invention;

[0026] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point C in the middle.

[0027] In the figure: 1. valve body; 2. valve pipe; 3. connecting shell; 4. connecting flange; 5. internal buffer device; 501. side end connecting plate; 502. connecting arc plate; 503. placing frame plate; 504. internal spring member; 505. supporting column member; 506. elastic connecting pad; 507. side end connecting block; 6. anti-corrosion device; 601. internal anti-corrosion sealing ring member; 602. water-passing pipe member; 603. internal coating ring plate; 604. microcapsule; 605. first adhesive tape; 606. second adhesive tape; 607. blocking pad; 7. valve control device; 701. top connecting member; 702. hand wheel; 703. limiting ring member; 704. internal valve stem; 705. nut ring; 706. surface elastic connecting pad; 707. internal connecting disk; 708. annular pad; 709. valve disc. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-7 , the present invention provides the following technical solutions:

[0031] A valve structure for petrochemical industry comprises a valve body 1, a valve tube 2 is arranged on the side of the valve body 1, a connecting shell 3 is arranged on the top of the valve body 1, a connecting flange 4 is arranged on the side of the valve tube 2, an internal buffer device 5 is arranged inside the valve body 1, an anti-corrosion device 6 is arranged inside the valve body 1, and a valve control device 7 is arranged inside the connecting shell 3.

[0032] The anti-corrosion device 6 includes an inner anti-corrosion sealing ring 601, a water pipe 602, an inner coating ring plate 603, a microcapsule 604, a first adhesive tape 605, a second adhesive tape 606 and a sealing pad 607. The inner anti-corrosion sealing ring 601 is fixedly connected to both sides of the inner wall of the valve body 1, the inner anti-corrosion sealing ring 601 is connected to the surface of the valve tube 2, the water pipe 602 is fixedly connected to the inner ring of the inner anti-corrosion sealing ring 601, the inner coating ring plate 603 is fixedly connected to the inner ring of the water pipe 602, the microcapsule 604 is fixedly connected to the inner ring of the inner coating ring plate 603, the first adhesive tape 605 is bonded to the side close to the second adhesive tape 606, and the left sealing pad 607 is fixedly connected to the first adhesive tape 605. At the bottom of the side of an adhesive tape 605, the right side sealing pad 607 is fixedly connected to the bottom of the side of the second adhesive tape 606, the valve tube 2 extends through the side of the valve body 1 and is connected to the two sides of the interior of the valve body 1, the inner diameter of the inner anti-corrosion sealing ring 601 is adapted to the diameter of the valve tube 2, and the top of the microcapsule 604 is connected with a connecting strip, the first adhesive tape 605 is connected to the left side of the top of the connecting strip, the second adhesive tape 606 is connected to the right side of the top of the connecting strip, a strip-shaped through groove is opened at the top of the connecting strip, and the sealing pad 607 is connected to the top of the connecting strip. The setting of the strip-shaped through groove enables the microcapsule 604 to release repair substances, automatically fill and repair damaged parts, and maintain the integrity and protective performance of the coating.

[0033] The internal buffer device 5 includes a side end connecting plate 501, a connecting arc plate 502, a placing frame plate 503, an inner spring member 504, a supporting column member 505, an elastic connecting pad 506 and a side end connecting block 507. The side end connecting plate 501 is fixedly connected to the inner bottom end of the valve body 1, the connecting arc plate 502 is fixedly connected to the top of the side end connecting plate 501, the supporting column member 505 is fixedly connected to the back of the connecting arc plate 502, the elastic connecting pad 506 is fixedly connected to the right side of the surface of the supporting column member 505, the back of the elastic connecting pad 506 is connected to the front of the internal anti-corrosion sealing ring member 601, and the front of the elastic connecting pad 506 is connected to the inner anti-corrosion sealing ring member 601. On the front of the inner ring of the placement frame 503, the placement frame 503 is fixedly connected to the two sides of the interior of the valve body 1, the side end connecting block 507 is fixedly connected to the front of the placement frame 503, the inner spring member 504 is fixedly connected to the bottom of the side end connecting block 507, and the bottom of the inner spring member 504 is fixedly connected to the inner bottom end of the valve body 1. The inner ring of the placement frame 503 is provided with an anti-corrosion ceramic coating. The coating has excellent corrosion resistance, wear resistance and high temperature resistance, and can effectively prevent the corrosive components in the petrochemical medium from eroding the internal structure of the valve, reducing the maintenance cost of the valve, and improving the overall performance and reliability of the valve.

[0034] The valve control device 7 includes a top connector 701, a hand wheel 702, a limit ring 703, an inner valve stem 704, a nut ring 705, a surface elastic connection pad 706, an inner connection plate 707, an annular pad 708 and a valve flap 709. The limit ring 703 is fixedly connected to the top of the valve body 1, the inner valve stem 704 is slidably connected to the inner ring of the limit ring 703, the hand wheel 702 is fixedly connected to the surface of the inner valve stem 704 near the top, the top connector 701 is fixedly connected to the top of the inner valve stem 704, the inner ring of the nut ring 705 is provided with an inner thread groove, and the nut ring 705 is provided with an inner thread groove. 05 is threadedly connected to the top of the surface of the inner valve stem 704, the surface elastic connecting pad 706 is fixedly connected to the surface of the nut ring 705, the surface elastic connecting pad 706 is slidably connected to the inside of the valve body 1, the inner connecting disk 707 is fixedly connected to the middle of the surface of the surface elastic connecting pad 706, the annular pad 708 is fixedly connected to the top of the inner connecting disk 707, the annular pad 708 is slidably connected to the inner top of the valve body 1, the valve disc 709 is fixedly connected to the bottom of the inner valve stem 704, and a through groove is opened on the top of the valve body 1, and the aperture of the through groove is adapted to the inner diameter of the limiting ring 703.

[0035] When in use, the user can hold the hand wheel 702 to drive the inner valve stem 704 to rotate, thereby driving the valve disc 709 at the bottom to rotate, and the valve can be opened. When the inner valve stem 704 is rotated, the inner connecting disk 707 and the annular gasket 708 in the middle of its surface can be driven to rotate along, and the annular gasket 708 can slide against the inner top of the valve body 1 during rotation, and the bottom end of the valve disc 709 is connected to the inner ring of the placement frame plate 503, and slides against the inner ring of the placement frame plate 503, so as to control the opening and closing of the valve. It is easy to use, and an internal buffer device 5 is arranged inside the valve body 1. The valve disc 709 and the placement frame plate 503 are connected by magnetic attraction. When the valve is closed, the magnetic attraction force is used to adsorb possible metal impurities outside the sealing surface to prevent them from entering between the sealing surfaces and affecting the sealing performance. When the internal medium passes through, the internal spring member 504, the side end connecting block 507 and the elastic connecting gasket 506 can all play a buffering role, so that the medium When passing through the valve, it can flow more smoothly, reduce the impact and turbulence of the fluid, reduce the pressure loss and vibration inside the valve, thereby improving the working efficiency and stability of the valve, and when the medium passes through, it will pass through the inner anti-corrosion sealing ring 601 and the inner coating ring plate 603 of the inner ring. The inner coating ring plate 603 is coated with anti-corrosion material to ensure the service life of the device, and the inner ring is provided with microcapsules 604. The surface of the anti-corrosion coating is provided with microcapsules with self-repairing function. When the coating is slightly damaged, that is, when the first adhesive tape 605, the sealing pad 607 and the sealing pad 607 are damaged and cannot be adhered, the microcapsules 604 can release repair substances, automatically fill and repair the damaged parts, maintain the integrity and protective performance of the coating, further extend the service life of the coating and the normal operation time of the valve, so that the anti-corrosion components can be set inside the valve of the device, and the internal pipes and seals are not easily damaged to affect the service life and sealing effect, and the practicability is strong.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve structure for petrochemical industry, comprising a valve body (1), characterized in that: A valve tube (2) is arranged on the side of the valve body (1), a connecting shell (3) is arranged on the top of the valve body (1), a connecting flange (4) is arranged on the side of the valve tube (2), an internal buffer device (5) is arranged inside the valve body (1), an anti-corrosion device (6) is arranged inside the valve body (1), and a valve control device (7) is arranged inside the connecting shell (3); The anti-corrosion device (6) comprises an inner anti-corrosion sealing ring (601), a water-passing pipe (602), an inner coating ring plate (603), a microcapsule (604), a first adhesive tape (605), a second adhesive tape (606) and a sealing pad (607), wherein the inner anti-corrosion sealing ring (601) is fixedly connected to both sides of the inner wall of the valve body (1), the inner anti-corrosion sealing ring (601) is connected to the surface of the valve tube (2), and the water-passing pipe (602) is fixedly connected to the inner anti-corrosion sealing ring ( The inner ring of the inner coating ring plate (601) is fixedly connected to the inner ring of the water pipe (602), the microcapsule (604) is fixedly connected to the inner ring of the inner coating ring plate (603), the first adhesive tape (605) is bonded to the second adhesive tape (606) on one side close to each other, the sealing pad (607) on the left side is fixedly connected to the bottom of the side of the first adhesive tape (605), and the sealing pad (607) on the right side is fixedly connected to the bottom of the side of the second adhesive tape (606).

2. A petrochemical valve structure according to claim 1, characterized in that: The internal buffer device (5) comprises a side end connecting plate (501), a connecting arc plate (502), a placement frame plate (503), an internal spring member (504), a supporting column member (505), an elastic connecting pad (506) and a side end connecting block (507), wherein the side end connecting plate (501) is fixedly connected to the inner bottom end of the valve body (1), the connecting arc plate (502) is fixedly connected to the top of the side end connecting plate (501), the supporting column member (505) is fixedly connected to the back side of the connecting arc plate (502), and the elastic connecting pad (506) is fixedly connected to the supporting column member ( 505), the back side of the elastic connection pad (506) is connected to the front side of the inner anti-corrosion sealing ring (601), the front side of the elastic connection pad (506) is connected to the front side of the inner ring of the placement frame (503), the placement frame (503) is fixedly connected to the inner sides of the valve body (1), the side end connection block (507) is fixedly connected to the front side of the placement frame (503), the inner spring member (504) is fixedly connected to the bottom of the side end connection block (507), and the bottom of the inner spring member (504) is fixedly connected to the inner bottom end of the valve body (1).

3. A petrochemical valve structure according to claim 2, characterized in that: The valve control device (7) comprises a top connecting piece (701), a hand wheel (702), a limiting ring (703), an inner valve stem (704), a nut ring (705), a surface elastic connecting pad (706), an inner connecting disk (707), an annular pad (708) and a valve flap (709), wherein the limiting ring (703) is fixedly connected to the top of the valve body (1), the inner valve stem (704) is slidably connected to the inner ring of the limiting ring (703), the hand wheel (702) is fixedly connected to the surface of the inner valve stem (704) near the top, the top connecting piece (701) is fixedly connected to the top of the inner valve stem (704), the nut ring The inner ring of (705) is provided with an internal thread groove, the nut ring (705) is threadedly connected to the top of the surface of the inner valve stem (704), the surface elastic connecting pad (706) is fixedly connected to the surface of the nut ring (705), the surface elastic connecting pad (706) is slidably connected to the inside of the valve body (1), the inner connecting plate (707) is fixedly connected to the middle of the surface of the surface elastic connecting pad (706), the annular pad (708) is fixedly connected to the top of the inner connecting plate (707), the annular pad (708) is slidably connected to the inner top of the valve body (1), and the valve flap (709) is fixedly connected to the bottom of the inner valve stem (704).

4. A petrochemical valve structure according to claim 3, characterized in that: The inner ring of the placement frame plate (503) is provided with an anti-corrosion ceramic coating.

5. A petrochemical valve structure according to claim 4, characterized in that: A through groove is provided on the top of the valve body (1), and the aperture of the through groove is adapted to the inner diameter of the limiting ring (703).

6. A petrochemical valve structure according to claim 5, characterized in that: The top of the microcapsule (604) is connected to a connecting strip, the first adhesive strip (605) is connected to the left side of the top of the connecting strip, and the second adhesive strip (606) is connected to the right side of the top of the connecting strip.

7. A petrochemical valve structure according to claim 6, characterized in that: A strip-shaped through groove is provided on the top of the connecting strip, and the blocking pad (607) is connected to the top of the connecting strip.

8. A petrochemical valve structure according to claim 7, characterized in that: The valve tube (2) passes through the side surface of the valve body (1) and extends to be connected to two sides of the interior of the valve body (1); the inner diameter of the inner anti-corrosion sealing ring (601) is adapted to the diameter of the valve tube (2).

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