Electrode contact with novel structure

Abstract

The utility model provides an electrode contact with a novel structure, and relates to the technical field of accessories of vacuum heat treatment equipment. The furnace shell comprises a furnace shell barrel and electrode connectors, the electrode connectors comprise the first electrode connector and the second electrode connector, the first electrode connector comprises a first electrode connector body, a first stainless steel pipe and a first electrode water cooling channel are arranged on the first electrode connector body, and the second electrode connector comprises a second electrode connector body. And a second stainless steel pipe and a second electrode water cooling channel are arranged on the second electrode contact main body. The high-pressure nitrogen heating furnace effectively solves the problem that the calorific value is too large in the electrifying process, the whole high-pressure nitrogen heating furnace can stably supply power to operate, and direct contact between a cable and an electrode connector is avoided through the hot-pressing stainless steel pipe and the surfacing stainless steel coating.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vacuum heat treatment equipment accessory technical field, especially, a kind of novel structure electrode connector. BACKGROUND

[0002] Large high-pressure nitrogen heating furnace diameter reaches 3 meters, internal pressure can reach 13MPa under working condition, absolute pressure can be controlled at 0.1KPa under vacuum extraction state. Graphene heating screen is used in hot field, and the temperature of core heating area can reach above 1000 DEG C. Since there are a large number of graphene heaters needing power supply inside high-pressure furnace shell, and cable must pass through cylinder through electrode port connector. If electrode connector material selects commonly used carbon steel forgings 16Mn III (ferromagnetic material) on the market during the process of cable passing through electrode connector, a lot of heat will be generated during power-on process, which will cause equipment damage. If electrode connector material selects stainless steel forgings S30408 III, although electrode heating problem can be solved, but electrode is easy to appear poor fusion of dissimilar steel welded joint when being welded with cylinder, especially when wall thickness of pressure furnace shell is large and welding amount is large, internal welded joint is easy to produce crack defects, which will cause safety accidents during equipment use. SUMMARY

[0003] In view of the deficiencies existing in the above problems, the utility model provides a novel structure electrode connector, which effectively solves the problem of excessive heat generation during power-on process, so that the whole high-pressure nitrogen heating furnace can stably power supply and run, and the cable and electrode connector are avoided from direct contact by hot-pressing stainless steel pipe and surfacing stainless steel cladding.

[0004] In order to solve the above problems, the utility model provides a novel structure electrode connector, which includes furnace shell cylinder and electrode connector, and the electrode connector is arranged on the furnace shell cylinder, wherein the electrode connector includes first electrode connector and second electrode connector, the first electrode connector is arranged on the left end upper side of the furnace shell cylinder, the second electrode connector is arranged on the left end lower side of the furnace shell cylinder, the first electrode connector includes first electrode connector main body, the first electrode connector main body is provided with first stainless steel pipe and first electrode water cooling channel, the first stainless steel pipe includes first left stainless steel pipe and first right stainless steel pipe, the first left stainless steel pipe and the first right stainless steel pipe are arranged in parallel structure on the first electrode connector main body, the first electrode water cooling channel is arranged inside the first electrode connector main body, the second electrode connector includes second electrode connector main body, the second electrode connector main body is provided with second stainless steel pipe and second electrode water cooling channel, the second stainless steel pipe includes second left stainless steel pipe and second right stainless steel pipe, the second left stainless steel pipe and the second right stainless steel pipe are arranged in parallel structure on the second electrode connector main body, and the second electrode water cooling channel is arranged inside the second electrode connector main body.

[0005] Preferably, the surfacing stainless steel cladding further comprises a first surfacing stainless steel cladding and a second surfacing stainless steel cladding, the first surfacing stainless steel cladding is arranged on the first electrode connector, and the second surfacing stainless steel cladding is arranged on the second electrode connector.

[0006] Preferably, the first surfacing stainless steel cladding comprises a first upper surfacing stainless steel cladding and a first lower surfacing stainless steel cladding, the first upper surfacing stainless steel cladding is arranged on the upper end of the first electrode connector, and the first lower surfacing stainless steel cladding is arranged on the lower end of the first electrode connector.

[0007] Preferably, the second surfacing stainless steel cladding comprises a second upper surfacing stainless steel cladding and a second lower surfacing stainless steel cladding, the second upper surfacing stainless steel cladding is arranged on the upper end of the second electrode connector, and the second lower surfacing stainless steel cladding is arranged on the lower end of the second electrode connector.

[0008] Preferably, the first electrode connector body and the second electrode connector body are both carbon steel forgings.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The utility model effectively solves the problem of excessive heat generation in the process of power supply, makes the whole high-pressure nitrogen gas heating furnace can stable power supply operation, and through hot-pressing stainless steel pipe and surfacing stainless steel cladding, makes the cable and electrode connector avoid direct contact, the whole welding process strictly executes new welding technology, has guaranteed the welding quality, thereby guarantees the stable operation of system. BRIEF DESCRIPTION OF DRAWINGS

[0011] Fig. 1 It is the embodiment structure schematic diagram of the utility model;

[0012] Fig. 2 It is the embodiment cross section structure schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following will be further detailed with the example to the utility model, but the example is not as the limitation to the utility model.

[0014] As Figs. 1-2 Shown, the embodiment of the utility model includes furnace shell cylinder and electrode connector, electrode connector sets up on furnace shell cylinder, electrode connector includes first electrode connector and second electrode connector, first electrode connector sets up on the left end upper side of furnace shell cylinder, and second electrode connector sets up on the left end lower side of furnace shell cylinder.

[0015] In the embodiment, the electrode connector is provided with a cladding layer of surfacing stainless steel, and the cladding layer of surfacing stainless steel comprises a first cladding layer of surfacing stainless steel and a second cladding layer of surfacing stainless steel.

[0016] In the embodiment, the first electrode connector comprises a first electrode connector body, and the first electrode connector body is provided with a first stainless steel pipe and a first electrode water cooling channel.

[0017] In the embodiment, the first cladding layer of surfacing stainless steel comprises a first upper cladding layer of surfacing stainless steel and a first lower cladding layer of surfacing stainless steel.

[0018] In the embodiment, the second electrode connector comprises a second electrode connector body, and the second electrode connector body is provided with a second stainless steel pipe and a second electrode water cooling channel.

[0019] In the embodiment, the second cladding layer of surfacing stainless steel comprises a second upper cladding layer of surfacing stainless steel and a second lower cladding layer of surfacing stainless steel.

[0020] In the embodiment, the first electrode connector body and the second electrode connector body are both made of a carbon steel forge body.

[0021] In the embodiment, in order to avoid cracks caused by thick-walled dissimilar steel welding, a carbon steel forge 16MnIII is selected as the electrode body, and a surface surfacing structure is used to avoid the contact between the cable and the carbon steel electrode connector to generate a large amount of heat, and a water cooling channel is arranged in the electrode connector for cooling.

[0022] In the embodiment, the furnace shell cylinder is provided with flanges, and the flanges comprise circular flanges and square flanges.

[0023] In the embodiment, the furnace shell cylinder is provided with water cooling sleeves, water cooling jackets and water cooling coils, and the furnace shell cylinder is also provided with inlet and outlet water pipe connectors.

[0024] In this embodiment, a temperature measuring port connector is provided on the furnace shell. The temperature measuring port connector includes a temperature measuring port connector C and a temperature measuring port connector D, with the temperature measuring port connector C located above the temperature measuring port connector D.

[0025] In this embodiment, the specific operation is as follows: The electrode connector body is forged from 16MnⅢ. Two φ99 holes are opened on the electrode connector. Then, φ100×20×170 stainless steel tubes are hot-pressed into the two φ99 holes respectively. Next, stainless steel cladding is deposited on the upper and lower surfaces of the electrode connector using A102 welding rod, with a layer height of 8mm. The electrode connector and cladding are ground to achieve a rounded transition. Then, holes are drilled on the electrode connector. After drilling, the holes are sealed with 40mm long φ14.9 steel rods. Then, a 5mm high stainless steel cladding layer is left on the threaded surface and the upper and lower surfaces of the electrode by machining. At the same time, unless otherwise specified, the free dimensional tolerance of the machined surface is in accordance with the m-level accuracy specified in GB / T1804-2000.

[0026] In this embodiment, the electrode joint and the furnace shell need to be preheated before welding. The preheating temperature is 150°C and the preheating time is 15 minutes. After welding, stress relief heat treatment is performed.

[0027] Those skilled in the art can connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence, and the sequential operation order between each electrical component to complete the electrical connection, are well-known technologies in the field, and will not be described further regarding electrical control.

[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0029] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this patent application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent application, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this specification according to the specific circumstances.

[0032] In this specification, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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 any suitable manner in 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.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A novel structural electrode connector, comprising a furnace shell and an electrode connector, wherein the electrode connector is disposed on the furnace shell, characterized in that, The electrode connector includes a first electrode connector and a second electrode connector. The first electrode connector is located on the upper left side of the furnace shell, and the second electrode connector is located on the lower left side of the furnace shell. The first electrode connector includes a first electrode connector body, on which a first stainless steel tube and a first electrode water-cooling channel are provided. The first stainless steel tube includes a first left stainless steel tube and a first right stainless steel tube, which are arranged in parallel on the first electrode connector body. The first electrode water-cooling channel is located inside the first electrode connector body. The second electrode connector includes a second electrode connector body, on which a second stainless steel tube and a second electrode water-cooling channel are provided. The second stainless steel tube includes a second left stainless steel tube and a second right stainless steel tube, which are arranged in parallel on the second electrode connector body. The second electrode water-cooling channel is located inside the second electrode connector body.

2. The novel electrode connector as described in claim 1, characterized in that, It also includes a stainless steel cladding layer, which includes a first stainless steel cladding layer and a second stainless steel cladding layer. The first stainless steel cladding layer is disposed on the first electrode connector, and the second stainless steel cladding layer is disposed on the second electrode connector.

3. The novel electrode connector as described in claim 2, characterized in that, The first weld overlay stainless steel cladding includes a first upper weld overlay stainless steel cladding and a first lower weld overlay stainless steel cladding. The first upper weld overlay stainless steel cladding is disposed at the upper end of the first electrode connector, and the first lower weld overlay stainless steel cladding is disposed at the lower end of the first electrode connector.

4. The novel electrode connector as described in claim 3, characterized in that, The second weld overlay stainless steel cladding includes a second upper weld overlay stainless steel cladding and a second lower weld overlay stainless steel cladding. The second upper weld overlay stainless steel cladding is disposed at the upper end of the second electrode connector, and the second lower weld overlay stainless steel cladding is disposed at the lower end of the second electrode connector.

5. A novel electrode connector as described in claim 4, characterized in that, Both the first electrode connector body and the second electrode connector body are made of carbon steel forgings.

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