Novel fine small butt clamp fluorine lining check valve

Abstract

The utility model relates to the technical field of valves, in particular to a novel fine small butt clamp fluorine lining check valve which comprises a valve body, a first anti-corrosion layer is arranged on the inner side of the valve body, a first installation groove is formed in one side of the valve body, a valve clack is rotatably installed on one side of the first installation groove, and a baffle is fixedly connected to the outer side of a rotating shaft in a sleeved mode. A plurality of second mounting grooves are annularly formed in one side of the baffle at equal intervals, magnets are placed in the second mounting grooves, a side plate is mounted on one side of the baffle, a screw fixed to the baffle in a threaded mode penetrates through one side of the side plate, and the outer side of the baffle and the outer side of the side plate are jointly wrapped with a second anti-corrosion layer. One side of the baffle is of the arc-shaped structure, the contact area is increased, meanwhile, the arc-shaped structure can effectively guide fluid to flow, reduce impact on the valve clack, increase the weight of the valve clack and enhance the sealing effect, the magnet can generate attractive force on the valve body 1, the valve clack makes contact with the valve body more tightly, and therefore the sealing performance of the valve is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a new type of precision small-sized wafer-type lined fluorine check valve. Background Art

[0002] Since the 21st century, the world's petrochemical industry has gradually shifted to China. China has become a major producer of petrochemical products in the world, with its crude oil processing capacity and ethylene production capacity ranking second and third in the world respectively, and they are still further increasing. However, China's petrochemical equipment has long relied on imports, and special valves for some important processes also have to be imported. Imported valves are not only expensive, but also extremely inconvenient to replace during maintenance. Therefore, it is the bounden duty of China's valve industry to base on independent innovation, develop high-end valves, and implement domestic substitution for imports.

[0003] Lined fluoroplastic valves began to be developed in the 1970s. Due to the special structure of the valves, the initial lined fluoroplastic valves mainly focused on several simple structures such as butterfly valves and ball valves, and could not adapt to strong acid, strong alkali, and solvent media in petrochemical pipelines. Later, Hastelloy, Monel alloy, and nickel-based alloy were invented, which solved the problem of transporting special petrochemical pipelines. However, these alloys contain a large amount of precious metals such as Ni, Cr, Nb, and Ti. Coupled with limited resources and high prices, fluoroplastic-lined valves have become ideal substitutes for precious metal valves. Lined valves are the products of the development of modern science and technology.

[0004] A check valve automatically opens and closes the valve flap by the flow of the medium itself. Its main functions are to prevent the reverse flow of the medium in the pipeline, prevent the pump and the driving motor from reversing, and the discharge of the medium in the container, etc. The prior art CN 203297690 U discloses a swing check valve, which includes a valve body and a valve flap. The valve body also includes an upper valve seat and a lower valve seat. A valve flap groove is provided on the valve body, and the valve flap is arranged in the valve flap groove through a rotating shaft close to the upper valve seat; anticorrosive layers are provided on the outer surfaces of the valve body and the valve flap. The utility model has the advantages of simple structure, convenient installation and maintenance, material saving, low cost, high cost performance, beautiful appearance, and good function, and is very practical, achieving the purpose of the utility model. When this check valve is in use, since the valve flap is a planar structure and has a light weight, it cannot achieve a good sealing effect. Therefore, we propose a new type of precision small-sized wafer-type lined fluorine check valve. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a new type of precision small-sized wafer-type lined fluorine check valve is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Design a new type of compact wafer - type lined - fluorine check valve, including a valve body. The inner side of the valve body includes a first anti - corrosion layer. One side of the valve body is provided with a first installation groove. A valve flap is rotatably installed on one side of the first installation groove. The valve flap includes a second anti - corrosion layer, a baffle plate, side plates, magnets, screws, a second installation groove, and a rotating shaft.

[0008] The rotating shaft is rotatably connected to the valve body. An outer side of the rotating shaft is fixedly sleeved with a baffle plate. One side of the baffle plate is an arc - shaped structure. A plurality of second installation grooves are equidistantly and annularly arranged on one side of the baffle plate. Magnets are placed inside the second installation grooves. One side of the baffle plate is provided with side plates. The side plates are penetrated by screws that are thread - fixed to the baffle plate. The outer sides of the baffle plate and the side plates are jointly wrapped with a second anti - corrosion layer.

[0009] Preferably, a lifting ring is thread - fixedly installed on the top of the valve body.

[0010] Preferably, a position on the inner side of the valve body that contacts the valve flap is an arc - shaped structure.

[0011] The beneficial effects of the new type of compact wafer - type lined - fluorine check valve proposed by the present utility model are as follows: One side of the baffle plate provided in the present utility model is an arc - shaped structure, which increases the contact area. At the same time, the arc - shaped structure can effectively guide the fluid flow, reduce the impact on the valve flap, and also increase the weight of the valve flap, enhancing the sealing effect. The magnets can generate an attractive force on the valve body, making the valve flap contact the valve body more closely, thereby improving its sealing performance.

[0012] Of course, it is not necessary for any product implementing the present utility model to achieve all the above - mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 It is a schematic structural diagram of the new type of compact wafer - type lined - fluorine check valve proposed by the present utility model;

[0015] Figure 2 It is an enlarged schematic structural diagram of part A of the new type of compact wafer - type lined - fluorine check valve proposed by the present utility model.

[0016] In the figure: valve body 1, first anti - corrosion layer 2, valve flap 3, lifting ring 4, first installation groove 5, second anti - corrosion layer 31, baffle plate 32, side plates 33, magnets 34, screws 35, second installation groove 36, rotating shaft 37. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the scope of protection of the present utility model.

[0018] Refer to Figure 1-2 , the new type of precision small-sized wafer-type lined fluorine check valve, including a valve body 1. The valve body 1 is of an annular structure. The inner side of the valve body 1 includes a first anti-corrosion layer 2. A first installation groove 5 is provided on one side of the valve body 1. The first installation groove 5 is of a circular structure. A valve flap 3 is rotatably installed on one side of the first installation groove 5. The valve flap 3 includes a second anti-corrosion layer 31, a baffle 32, side plates 33, a magnet 34, a screw 35, a second installation groove 36, and a rotating shaft 37;

[0019] The rotating shaft 37 is rotatably connected to the valve body 1. A baffle 32 is fixedly sleeved on the outer side of the rotating shaft 37. One side of the baffle 32 is of an arc structure. The arc structure can effectively guide the fluid flow, reduce the impact on the valve flap 3, and at the same time increase the weight of the valve flap 3 to enhance the sealing effect. A plurality of second installation grooves 36 are annularly arranged at equal intervals on one side of the baffle 32. Magnets 34 are placed inside the second installation grooves 36. The magnets 34 can generate an attractive force on the valve body 1, making the valve flap 3 contact the valve body 1 more closely, thereby improving its sealing performance. A side plate 33 is installed on one side of the baffle 32. A screw 35 that is threadedly fixed to the baffle 32 penetrates through one side of the side plate 33. The outer sides of the baffle 32 and the side plates 33 are jointly wrapped with a second anti-corrosion layer 31.

[0020] A lifting ring 4 is threadedly and fixedly installed on the top of the valve body 1, which is convenient for maintenance and installation.

[0021] The position where the inner side of the valve body 1 contacts the valve flap 3 is of an arc structure, which can increase the contact area between the valve body 1 and the valve flap 3, thereby improving the sealing performance.

[0022] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0023] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. Novel compact wafer type lined fluorine check valve, comprising a valve body (1), characterized in that, The inner side of the valve body (1) includes a first anti-corrosion layer (2). A first installation groove (5) is formed on one side of the valve body (1). A valve flap (3) is rotatably installed on one side of the first installation groove (5). The valve flap (3) includes a second anti-corrosion layer (31), a baffle (32), side plates (33), magnets (34), screws (35), a second installation groove (36), and a rotating shaft (37). The rotating shaft (37) is rotatably connected to the valve body (1). A baffle (32) is fixedly sleeved on the outer side of the rotating shaft (37). One side of the baffle (32) is an arc-shaped structure. A plurality of second installation grooves (36) are annularly arranged at equal intervals on one side of the baffle (32). Magnets (34) are placed inside the second installation grooves (36). A side plate (33) is installed on one side of the baffle (32). Screws (35) that are threadedly fixed to the baffle (32) penetrate through one side of the side plate (33). The outer sides of the baffle (32) and the side plates (33) are jointly wrapped with a second anti-corrosion layer (31).

2. The novel compact wafer type lined fluorine check valve according to claim 1, wherein A lifting ring (4) is threadedly and fixedly installed on the top of the valve body (1).

3. The novel compact wafer - type lined fluorine check valve according to claim 1, wherein, The position on the inner side of the valve body (1) that contacts the valve flap (3) is an arc-shaped structure.

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