Corrosion-resistant clamping and pressing type connecting flange

Abstract

The utility model discloses a corrosion-resistant clamping and pressing type connecting flange, and belongs to the technical field of flange connection. Comprising a first connecting flange and a second connecting flange which are attached and connected through a fixing piece, a first connecting pipe and a second connecting pipe are arranged in the center of the upper surface, and a clamping-pressing piece and a clamping-pressing groove are arranged in the center of the bottom surface. Fixing through holes are arranged around the outer side of the circumference and used for inserting fixing pieces. A memory metal sealing ring is arranged in the clamping and pressing groove and is matched with the clamping and pressing piece to realize sealing; an upper cover body and a lower cover body of the fixing piece are connected through a corrosion-resistant material screw, and a calibration fixing rod and a calibration hole are further arranged to ensure stable connection; the upper cover body and the lower cover body are sleeved with anti-corrosion gaskets, and the outer surfaces of the key components are coated with anti-corrosion coatings. The utility model has the characteristics of simple structure and convenience in installation, not only has good sealing performance and stability, can prevent internal medium leakage, but also has excellent corrosion resistance, can prevent parts from being in contact with a corrosion source, prolongs the service life, and has higher practical value in a plurality of industrial application scenes.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange connection technical field especially is a kind of corrosion-resistant clamping type connection flange. BACKGROUND

[0002] At present, in many industrial application scenarios, as an important component of pipeline connection, the performance of flange directly affects the stability and service life of the entire pipeline system. When facing corrosive media, the traditional flange connection method is prone to sealing failure, component corrosion damage and other problems, which may lead to leakage, equipment failure and other serious consequences. In order to improve the reliability and durability of flange in corrosive environment, the utility model provides a kind of corrosion-resistant clamping type connection flange. SUMMARY

[0003] The utility model discloses a kind of corrosion-resistant clamping type connection flange, solve the problems such as sealing failure, component corrosion damage and other problems of existing flange.

[0004] To achieve the above object, the utility model provides a kind of corrosion-resistant clamping type connection flange, including first connection flange and second connection flange, the first connection flange and the second connection flange are connected by fixed part, the upper surface center of the first connection flange and the second connection flange is respectively provided with first connecting pipe and second connecting pipe, the bottom surface center of the first connection flange and the second connection flange is respectively provided with clamping piece and clamping groove.

[0005] Preferably, the circumference of the first connection flange and the second connection flange is provided with a plurality of circumferentially arranged fixing through holes, and the fixing part is inserted and arranged in the fixing through hole.

[0006] Preferably, a memory metal sealing ring is placed in the clamping groove, and the clamping piece compacts the memory metal sealing ring and engages with the clamping groove.

[0007] Preferably, the sum of the height of the memory metal sealing ring and the height of the clamping piece is not greater than the height of the clamping groove.

[0008] Preferably, the fixing part includes an upper cover body and a lower cover body, the bottom of the upper cover body is provided with a fixing seat, the fixing seat is provided with a calibration fixing rod on both sides, and a corrosion-resistant material screw is penetrated and arranged on the top of the upper cover body.

[0009] The top center of the lower cover body is provided with a hollow fixing cylinder, the inside center of the hollow fixing cylinder is provided with a corrosion-resistant material screw locking hole, and calibration holes are formed on both sides of the hollow fixing cylinder.

[0010] Preferably, the corrosion-resistant material screw is engaged with the screw locking hole of the corrosion-resistant material screw, and the two calibration fixing rods are respectively inserted into the corresponding calibration holes.

[0011] Preferably, the bottom of the upper cover body and the top of the lower cover body are sleeved with corrosion-resistant gaskets.

[0012] Preferably, the length of the calibration fixing rod is not greater than the length of the calibration hole, and the length of the corrosion-resistant material screw is not greater than the length of the corrosion-resistant material screw locking hole.

[0013] Preferably, the outer surfaces of the first connecting flange, the second connecting flange, the first connecting pipe and the second connecting pipe are coated with an anti-corrosion coating.

[0014] Therefore, the corrosion-resistant clamping and pressing type connecting flange with the above structure has the following beneficial effects:

[0015] (1) The memory metal sealing ring is placed in the clamping and pressing groove, the clamping and pressing part compacts the sealing ring and engages with the clamping and pressing groove, so as to ensure good sealing effect and prevent medium leakage. At the same time, the corrosion-resistant gasket can improve the sealing property of the fixing part, effectively prevent the corrosive medium from invading the fixed through hole, improve the sealing property of the overall device, and add the corrosion-resistant means.

[0016] (2) In the utility model, the upper cover body and the lower cover body are connected by the corrosion-resistant material screw of the fixing part, which can provide good fixing effect, and the calibration fixing rod and the calibration hole are also arranged, which can ensure the stable connection of the fixing part and further guarantee the accuracy and stability of the connection of the fixing part.

[0017] (3) The overall device is coated with an anti-corrosion coating, which can isolate the parts from corrosive substances in the external environment, avoid direct contact of the parts with the corrosion source, and prolong the service life. At the same time, the screws in the fixing part are made of corrosion-resistant material, and the memory metal sealing ring is made of corrosion-resistant memory alloy material such as nickel-titanium alloy, which has stable chemical properties and good resistance to corrosive medium, thereby improving the overall corrosion resistance from the material level of the parts.

[0018] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of the utility model of a kind of corrosion-resistant clamping and pressing type connecting flange;

[0020] Figure 2 It is a clamping and pressing part structure schematic view of the utility model of a kind of corrosion-resistant clamping and pressing type connecting flange;

[0021] Figure 3The utility model discloses a first connecting flange and second connecting flange installation structure schematic drawing of corrosion -resistant clamping and pressing type connecting flange.

[0022] Figure 4 The utility model discloses a fixed part structure schematic drawing of corrosion -resistant clamping and pressing type connecting flange.

[0023] Figure 5 The utility model discloses an upper cover body structure schematic drawing of corrosion -resistant clamping and pressing type connecting flange.

[0024] Figure 6 The utility model discloses a lower cover body structure schematic drawing of corrosion -resistant clamping and pressing type connecting flange.

[0025] Reference signs

[0026] 1, first connecting flange, 2, second connecting flange, 3, first connecting pipe, 4, second connecting pipe, 5, fixed through -hole, 6, clamping and pressing part, 7, clamping and pressing groove, 8, memory metal sealing ring, 9, fixed part, 10, upper cover body, 11, fixed seat, 12, calibration fixed rod, 13, corrosion -resistant material screw, 14, lower cover body, 15, hollow fixed cylinder, 16, corrosion -resistant material screw shrinkage hole, 17, calibration hole, 18, corrosion -resistant gasket. DETAILED DESCRIPTION

[0027] The technical scheme of the utility model is further explained below by the drawings and embodiments.

[0028] Unless otherwise defined, the technical terms or scientific terms used in the utility model should be understood as the usual meaning of the person skilled in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but only distinguish different components. "Include" or "contain" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] EMBODIMENT

[0030] As Figures 1-6As shown, the utility model provides a kind of corrosion -resistant clamping type connecting flange, it is mainly by first connecting flange 1 and second connecting flange 2 constitute, and the two are connected by fixed part 9 adhesion.In the upper surface central of first connecting flange 1 and second connecting flange 2 respectively sets up first connecting pipe 3 and second connecting pipe 4, and the central of bottom surface respectively sets up clamping piece 6 and clamping groove 7.In the circumferential outside of first connecting flange 1 and second connecting flange 2 is equipped with several fixed through-hole 5 arranged around, and fixed part 9 is inserted in these fixed through-hole 5, to realize the fixed connection of two flanges by this.

[0031] Memory metal sealing ring 8 is placed in clamping groove 7, and clamping piece 6 compacts memory metal sealing ring 8 and engages with clamping groove 7, to achieve sealing effect.At the same time, to ensure the effectiveness of sealing, the sum of the height of memory metal sealing ring 8 and the height of clamping piece 6 is not greater than the height of clamping groove 7.

[0032] Fixed part 9 includes upper cover body 10 and lower cover body 14.The bottom of upper cover body 10 is provided with fixed seat 11, and fixed seat 11 has calibration fixed rod 12 on both sides, and corrosion -resistant material screw 13 is arranged on the top of upper cover body 10;the central hollow fixing cylinder 15 is arranged on the top of lower cover body 14, and corrosion -resistant material screw locking hole 16 is arranged in the central cylinder, and calibration hole 17 is arranged on both sides of the cylinder.When installing, corrosion -resistant material screw 13 is connected with corrosion -resistant material screw locking hole 16, two calibration fixed rods 12 are respectively inserted into corresponding calibration holes 17, and corrosion -resistant gaskets 18 are sleeved on the bottom of upper cover body 10 and the top of lower cover body 14.In addition, the length of calibration fixed rod 12 is not greater than the length of calibration hole 17, and the length of corrosion -resistant material screw 13 is not greater than the length of corrosion -resistant material screw locking hole 16.

[0033] The outer surface of first connecting flange 1, second connecting flange 2, first connecting pipe 3 and second connecting pipe 4 is coated with anticorrosive coating, so as to improve the corrosion resistance of the whole connecting flange.Anticorrosive coating can isolate these components from corrosive substances in the outside world, avoid direct contact of components with corrosion source, and thus play a protective role, effectively prolong the service life of connecting flange, and improve its corrosion resistance.Anticorrosive coating can be epoxy resin coating, polyurethane coating, polytetrafluoroethylene (PTFE) coating, zinc-rich coating, etc.

[0034] Corrosion -resistant gasket 18 can improve the sealing property of fixed part, can prevent corrosive medium from invading fixed through-hole 5, and also has good anticorrosive effect.

[0035] The memory metal sealing ring 8 is made of a memory alloy material with corrosion resistance, specifically, a nickel-titanium alloy, which is stable in chemical properties and has good resistance to corrosive media.

[0036] Therefore, the anti-corrosion clamping type connecting flange has simple structure, is easy to install, has good sealing performance and stability, can effectively prevent internal medium leakage, has good corrosion resistance, avoids direct contact of components with a corrosion source, and prolongs service life.

[0037] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solutions of the utility model can still be modified or replaced, and these modifications or equivalent replacements cannot make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A corrosion-resistant press-fit flange, characterized in that: It includes a first connecting flange and a second connecting flange, which are connected by fasteners. A first connecting pipe and a second connecting pipe are respectively provided at the center of the upper surface of the first connecting flange and the second connecting flange, and a clamping element and a clamping groove are respectively provided at the center of the bottom surface of the first connecting flange and the second connecting flange.

2. The corrosion-resistant press-fit flange according to claim 1, characterized in that: The first connecting flange and the second connecting flange have several circumferentially arranged fixing through holes on their outer sides, and the fixing member is inserted into the fixing through holes.

3. The corrosion-resistant press-fit flange according to claim 1, characterized in that: A shape memory metal sealing ring is placed in the clamping groove, and the clamping component presses the shape memory metal sealing ring into the clamping groove.

4. The corrosion-resistant press-fit flange according to claim 3, characterized in that: The sum of the height of the shape memory metal sealing ring and the height of the clamping member is not greater than the height of the clamping groove.

5. The corrosion-resistant press-fit flange according to claim 1, characterized in that: The fastener includes an upper cover and a lower cover. A fixing seat is provided at the bottom of the upper cover. A calibration fixing rod is provided on both sides of the fixing seat. A corrosion-resistant screw is provided through the top of the upper cover. A hollow fixing cylinder is provided at the top center of the lower cover, and a corrosion-resistant screw locking hole is provided at the center of the interior of the hollow fixing cylinder. Calibration holes are provided on both sides of the hollow fixing cylinder.

6. The corrosion-resistant press-fit flange according to claim 5, characterized in that: The corrosion-resistant screw is engaged with the corrosion-resistant screw locking hole, and the two calibration fixing rods are respectively inserted into the corresponding calibration holes.

7. A corrosion-resistant press-fit flange according to claim 5, characterized in that: Corrosion-resistant gaskets are fitted onto the bottom of the upper cover and the top of the lower cover.

8. A corrosion-resistant press-fit flange according to claim 5, characterized in that: The length of the calibration fixing rod is not greater than the length of the calibration hole, and the length of the corrosion-resistant screw is not greater than the length of the corrosion-resistant screw locking hole.

9. The corrosion-resistant press-fit flange according to claim 1, characterized in that: The outer surfaces of the first connecting flange, the second connecting flange, the first connecting pipe, and the second connecting pipe are all coated with an anti-corrosion coating.

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