Electronic gun adapter port water cooling structure for electron beam cooling bed vacuum melting furnace

Abstract

According to the electron gun adapter port water cooling structure for the electron beam cooling bed vacuum melting furnace, a water channel is formed in the upper end of an adapter ring piece, and two cavities communicated with two channel ports of the water channel are formed in the middle section of the adapter ring piece; two bent pipes communicated with the cavities in the corresponding sides are installed on the step face of the upper end of the middle section of the adapter ring piece, outer ports of the bent pipes are matched with pagoda connectors in a sealed mode, and the pagoda connectors are detachably fixed to the ends of the bent pipes in a sealed mode through locking nuts connected to the outer ends of the bent pipes in a threaded mode. According to the utility model, the integrally formed adapter ring piece and the flange ring at the adapter port of the electronic gun are detachably and fixedly connected in a sealing manner, so that the potential safety hazard caused by water leakage in the structure is eliminated, and the mounting position and the structure of the pipe structure are optimized; the electronic gun adapter solves the problems that a pipe structure at the water inlet and outlet position of a traditional structure is inconvenient to disassemble and assemble and poor in sealing performance, and the electronic gun adapter is convenient and fast to disassemble and assemble, good in sealing performance, high in safety performance and good in water cooling effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electron beam cold hearth vacuum smelting furnace, concretely relates to a water cooling structure of electron gun adapter for electron beam cold hearth vacuum smelting furnace. BACKGROUND

[0002] The electron beam cold hearth vacuum smelting furnace is a kind of vacuum metallurgical equipment, and the kinetic energy of high-speed electron beam current is converted into heat energy as heat source to carry out metal smelting under the action of high vacuum.The structure of the electron gun adapter in the electron beam cold hearth vacuum smelting furnace is that two conical cylinders are spliced and welded at the joint position, and two pipe joints, which are connected with a conical cylinder provided with a water channel inside, are arranged on the conical side wall and the upper end side wall of the conical cylinder respectively, two hoses for circulating water in and out are connected with the pipe joints through the pagoda joint, and the pagoda joint and the hose connected with the pipe joint are clamped and fixed by using a clamp.The temperature inside the smelting chamber is as high as 2000 DEG C.Although there is a water cooling structure, the sealing ring cannot be guaranteed not to be burnt out, and therefore, in order to guarantee the effectiveness of the sealing ring at the position of the electron gun adapter, the adapter needs to be regularly disassembled for inspection or replacement of the sealing ring.The disassembly of the adapter requires that the pagoda joint and the hose are first disassembled and then the adapter is disassembled.The structure of the adapter spliced and welded by the two conical cylinders and clamped and fixed by the clamp connected with the pipe joint has the following disadvantages in use: ① the installation position of the pipe joint is not reasonable, and the disassembly and assembly are inconvenient;② the hose needs to be clamped again after the clamp is disassembled each time, and if the clamping is not tight, water leakage will occur;③ the connection structure spliced and combined by the two conical cylinders is prone to fatigue failure at the welding position under the influence of water pressure and temperature for a long time, and the welded structure is prone to be affected by processing, and the sealing is not tight in the welding process due to welding impurities, pores and other factors, which causes the risk of water leakage in the adapter structure, and there is a great safety hazard, and therefore, it is necessary to improve the structure of the electron gun adapter to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problem: provide a kind of water cooling structure of electron gun adapter for electron beam cold hearth vacuum smelting furnace, adopt the structure that the flange ring of adapter ring piece of one-piece forming is detachably sealed and fixed, eliminate the security risk formed by the water leakage in structure inside, and the installation position and structure of pipe structure are optimized, the inconvenient disassembly and assembly and poor sealing of the pipe structure at the water inlet and outlet position in traditional structure are solved, the electron gun adapter is conveniently and quickly disassembled and assembled, the clamp for clamping and fixing the hose and the pagoda joint is not needed to be disassembled, the hose is conveniently disassembled and assembled, the sealing is good, the safety performance is high, the structure is simple, the water cooling effect is good, and the sealing element is effectively protected.

[0004] The utility model discloses a technical scheme: electron gun adapter interface water -cooling structure for electron beam cold hearth vacuum smelting furnace, including the flange ring detachable type sealing solid of the lower end with electron gun adapter interface place is connected with the adapter ring spare, the inside of the adapter ring spare upper end is made with water route channel, the inside of the adapter ring spare middle segment is equipped with two cavities that communicate respectively with two channel mouths of water route channel, and the step surface on the adapter ring spare middle segment upper end is equipped with two respectively with the cavity of corresponding side communication's elbow pipe, the elbow pipe outer port is sealed with pagoda joint adaptation, and through the lock nut of screw connection in the outer end of elbow pipe, the pagoda joint can be detachable type sealing fixed in the elbow pipe end, the pagoda joint and hose are fixedly connected through the clamp, and through the detachable type cooperation connection structure of lock nut and elbow pipe, realize the quick disassembly of hose and elbow pipe.

[0005] Wherein, the adapter ring spare is composed of the integral structure of the flange plate of lower end, the water -cooling cylinder of middle segment and the inner cone cylinder of upper end.

[0006] Further, the flange plate and the flange ring at the electron gun adapter interface place are integrally connected by bolts, and are tightly sealed by the sealing ring in the sealing groove of the bottom surface of the flange plate and the flange ring at the electron gun adapter interface place.

[0007] Further, the outer circumferential wall of the water-cooling cylinder is provided with a ring groove, and two partitions are fixed in the ring groove.

[0008] Further, two water channels are arranged in the inner cone cylinder and communicate with each other.

[0009] Further, the elbow pipe comprises a water joint and an elbow joint welded at the two ends, the elbow joint is fixed in the mounting hole on the step surface of the upper end of the middle segment of the adapter ring spare and communicates with the cavity on the corresponding side, the end of the pagoda joint is adapted and inserted into the annular groove on the end face of the water joint, a sealing washer is arranged between the pagoda joint and the annular groove, and the lock nut is sleeved on the pagoda joint and is fixed on the end of the water joint through the external thread of the lock nut and the water joint.

[0010] Further, the outer circumferential wall of the water joint is provided with a convex ring, and the inner blocking ring is integrally arranged on the inner wall of the port of the non-thread end of the lock nut, and when the lock nut and the water joint are connected through the external thread, the sealing washer is tightly sealed by the convex ring moved to the end of the pagoda joint under the inner blocking ring.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1. The technical scheme adopts the structure that the adapter ring piece is integrally formed and the flange ring at the electron gun adapter port is detachably sealed and fixed, the structure of the integral machining piece has no welding seam inside and outside, thereby avoiding the generation of pores and welding fatigue problems, and completely eliminating the safety hazard caused by internal water leakage of the structure, and improving the safety performance of the structure;

[0013] 2. The technical scheme optimizes the installation position and structure of the pipe structure, designs the safe position of the pressure water inlet and outlet pipeline on the stepped surface of the middle upper end of the adapter ring piece, increases the surrounding operation space, and solves the inconvenience of disassembling the pipe structure of the water inlet and outlet position of the traditional structure;

[0014] 3. The pipe structure of the technical scheme adopts a connection structure that the elbow pipe is matched and sealed with the pagoda joint, and the two are locked and fixed by the lock nut, thereby reducing the disassembly difficulty of the pipe structure, facilitating the replacement of the hose, and improving the connection sealing performance;

[0015] 4. The technical scheme sets a water channel communicating between the head and tail inside the adapter ring piece, so that the water channel has no cross-section mutation, ensures the overall smooth flow of the internal cooling water, uniformly distributes the stress, and improves the strength when bearing high pressure for a long time;

[0016] 5. The technical scheme has simple structure, good water cooling effect, no need to disassemble the clamp for clamping and fixing the hose and the pagoda joint, convenient disassembly of the hose, significantly improved sealing performance and reliability, high safety performance, effective protection of the sealing element, and improved service life of the sealing element. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a plane structure schematic view of the utility model;

[0019] Figure 3 It is Figure 2 A-A sectional view;

[0020] Figure 4 It is Figure 2 B-B sectional view;

[0021] Figure 5 It is a partition and fence position structure schematic view of the utility model;

[0022] Figure 6 It is a lateral plane schematic view of the utility model;

[0023] Figure 7 It is Figure 6 C-C sectional view;

[0024] Figure 8The utility model discloses a use state schematic drawing. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with Figures 1-8 It is apparent that the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] It should be noted that, in this article, without the opposite description, it is understood that: the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In this article, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations. The element defined by the sentence "includes a..." does not exclude the presence of another identical element in the process, method, article or device including the element.

[0028] The electron gun adapter interface water cooling structure of the electron beam cold hearth vacuum smelting furnace is like Figure 1 , 8As shown, including the lower end with the flange ring electron gun adapter interface detachable sealing fixed adapter ring piece 1, the upper end of the adapter ring piece 1 is internally provided with a water channel 2, the middle section of the adapter ring piece 1 is internally provided with two cavities 3 respectively communicating with two channel openings of the water channel 2, and two bend pipes 4 respectively communicating with the corresponding side cavities 3 are installed on the stepped surface of the upper end of the middle section of the adapter ring piece 1, the outer port of the bend pipe 4 is adapted to a tower joint 5, and the tower joint 5 is detachably sealed and fixed to the end of the bend pipe 4 by a locking nut 6 threaded on the outer end of the bend pipe 4, the tower joint 5 is fixedly connected with the hose through a clamp, and the hose and the bend pipe 4 are quickly disassembled through the detachable connecting structure of the locking nut 6 and the bend pipe 4; in the above structure, the flange ring at the electron gun adapter interface of the integrally formed adapter ring piece 1 is detachably sealed and fixed, the structure of the integral machining part has no weld inside and outside, which avoids the generation of pores and welding fatigue problems, thereby completely eliminating the safety hazards caused by internal water leakage of the structure, and improving the safety performance of the structure; the pipe structure adopts the connecting structure that the bend pipe 4 is adapted to the tower joint 5 and locked and fixed by the locking nut 6, which reduces the disassembly difficulty of the pipe structure and improves the connection sealing performance; the installation position and structure of the pipe structure are optimized, the safe position of the pressure water inlet and outlet pipeline is designed on the stepped surface of the upper end of the middle section of the adapter ring piece 1, the surrounding space is increased, and the inconvenience of disassembly of the pipe structure at the water inlet and outlet position of the traditional structure is solved.

[0029] The specific structure of the adapter ring piece 1 is as follows: the adapter ring piece 1 is an integral structure composed of a flange plate 1-1 at the lower end, a water-cooled cylinder 1-2 at the middle section and an inner tapered cylinder 1-3 at the upper end, which has no weld inside and outside, and eliminates the safety hazards caused by the defects such as poor sealing and water leakage existing in the traditional welded structure; specifically, the sealing connection structure of the adapter ring piece 1 and the electron gun adapter interface is as follows: the flange plate 1-1 and the flange ring at the electron gun adapter interface are integrally connected by bolts, and the flange ring at the electron gun adapter interface is tightly sealed by a sealing ring 7 arranged in the sealing groove on the bottom surface of the flange plate 1-1, wherein the top of the installation position of the sealing ring 7 is provided with two cavities 3 communicating with the water channel 2, which is used to reduce the temperature around the sealing ring 7, provide a reliable working environment for the sealing ring 7, and improve the service life of the sealing ring 7.

[0030] The specific formation structure of the cavity 3 is as follows: the outer circumferential wall of the water-cooled cylinder 1-2 is provided with an annular groove 1-4, and two partitions 8 are fixed in the annular groove 1-4; the outer wall of the water-cooled cylinder 1-2 is fixed with a fence 9 for enclosing the annular groove 1-4, and the fence 9 and the partition 8 form two cavities 3 which are in communication with the corresponding side elbow pipe 4; specifically, the inner taper cylinder 1-3 is provided with two water passage channels 2 which are in communication with each other around the taper hole of the inner taper cylinder 1-3, and the two ports of the water passage channel 2 are in communication with the two cavities 3 respectively; when the water passage channel 2 is opened, the process hole on the outer wall of the adapter ring 1 is closed by the plug; by arranging two water passage channels 2 which are in communication with each other in the adapter ring 1, the cross section of the water passage channel 2 does not change suddenly, which ensures the smooth flow of the internal cooling water as a whole, the uniform stress distribution, and the strength of the adapter ring 1 under high pressure for a long time; in the above structure, the fence 9 is fixed on the outer wall of the water-cooled cylinder 1-2 in a two-leaf structure by welding, which is used to form two cavities 3 in cooperation with the partition 8 and the annular groove 1-4; the cavity 3 is located outside the adapter ring 1, and high-pressure water is introduced into the cavity 3 to cool the adapter ring 1, thereby effectively protecting the sealing ring 7, ensuring the reliable sealing of the flange ring at the adapter interface of the adapter ring 1, and improving the service life of the sealing ring 7; the partition 8 is installed between the adapter ring 1 and the fence 9, so that the inlet and return water is separated in the internal space into two cavities 3; one elbow pipe 4 is used for water inlet in one cavity 3, and the other elbow pipe 4 is used for water return in the other cavity 3; after water inlet, the water flows into the water passage channel 2 in the inner taper cylinder 1-3 at the upper end of the adapter ring 1 through the one cavity 3, and then flows out to the outside one cavity 3 through the corresponding elbow pipe 4.

[0031] The specific structure of the elbow pipe 4 is as follows: the elbow pipe 4 comprises a water passage connector 4-1 and an elbow connector 4-2 which are welded together at the first and second ends; the lower end of the elbow connector 4-2 is welded and fixed in the mounting hole on the upper end step surface of the middle section of the adapter ring 1, and is in communication with the corresponding side cavity 3; the end of the tower connector 5 is adapted and inserted into the annular groove 4-3 on the corresponding end face of the water passage connector 4-1, and a sealing gasket 10 is arranged between the tower connector 5 and the groove face of the annular groove 4-3; the locking nut 6 is sleeved on the tower connector 5, and the tower connector 5 is sealed and fixed on the end of the water passage connector 4-1 under the adaptive connection of the locking nut 6 and the outer thread of the water passage connector 4-1; specifically, the outer circumferential wall of the connecting end of the tower connector 5 and the water passage connector 4-1 is provided with a convex ring 5-1, and the inner wall of the port of the non-thread end of the locking nut 6 is integrally provided with an inner stop ring 6-1; when the locking nut 6 is adaptively connected with the outer thread of the water passage connector 4-1, the inner stop ring 6-1 pushes the convex ring 5-1 to move towards the water passage connector 4-1 to tightly seal the sealing gasket 10 at the end of the tower connector 5; the design of this structure facilitates the replacement of parts, ensures the sealing reliability after each fixed connection, and eliminates the risk of water leakage.

[0032] The technical scheme has simple structure, good water cooling effect, convenient disassembly and assembly of the taper joint 5 and the external water pipe, obviously improved sealing performance and reliability, high safety performance, effectively protects the sealing element, and prolongs the service life of the sealing element;

[0033] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical scheme, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical schemes in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. An electron gun adapter water cooling structure for an electron beam cold hearth vacuum melting furnace, characterized by: The utility model provides a kind of electron gun adapter ring, including the flange ring detachable sealing fixed connection of lower end with electron gun adapter interface, the inside of the adapter ring (1) upper end is made into water channel (2), the inside of the adapter ring (1) middle section is equipped with two cavities (3) respectively with two channel ports of water channel (2) communication, and the step surface on the upper end of the adapter ring (1) middle section is equipped with two respectively with corresponding side cavity (3) communication elbow pipe (4), the elbow pipe (4) outer port is sealed with pagoda joint (5) adaptation, and through the locking nut (6) of screw thread connection in the outer end of elbow pipe (4), pagoda joint (5) is detachably sealed and fixed in the end of elbow pipe (4), the pagoda joint (5) is fixedly connected with hose through clamp, and through the detachable cooperation connection structure of locking nut (6) and elbow pipe (4), the quick disassembly and assembly of hose and elbow pipe (4) are realized.

2. The electron gun adapter water cooling structure for an electron beam cold hearth vacuum melting furnace according to claim 1, characterized in that: The adapter ring (1) is composed of a one-piece structure of a flange plate (1-1) at the lower end, a water-cooled cylinder (1-2) at the middle section, and an inner tapered cylinder (1-3) at the upper end.

3. The electron gun adapter water cooling structure for an electron beam cold hearth vacuum melting furnace according to claim 2, characterized in that: The flange plate (1-1) is integrally connected with the flange ring at the electron gun adapter interface by bolts, and is tightly sealed against the flange ring at the electron gun adapter interface by a sealing ring (7) arranged in the sealing groove on the bottom surface of the flange plate (1-1).

4. The electron gun adapter water cooling structure for an electron beam cold hearth vacuum melting furnace according to claim 3, characterized in that: The water-cooled cylinder (1-2) is provided with a ring groove (1-4) on the outer circumferential wall, and two partitions (8) are fixed in the ring groove (1-4). A fence (9) is fixed on the outer wall of the water-cooled cylinder (1-2) to enclose the ring groove (1-4), and the fence (9) and the partitions (8) form two cavities (3) in the ring groove (1-4), which are in communication with the corresponding elbow pipes (4).

5. The electron gun adapter water cooling structure for an electron beam cold hearth vacuum melting furnace according to claim 4, characterized in that: The inner tapered cylinder (1-3) is provided with two water channels (2) inside, which are in communication with each other and with the two cavities (3).

6. The water-cooling structure of the electron gun adapter for the electron beam cold hearth vacuum melting furnace according to any one of claims 1-5, characterized in that: The elbow pipe (4) includes a water connector (4-1) and an elbow connector (4-2) welded together at the first and second ends. The lower end of the elbow connector (4-2) is fixed in the mounting hole on the step surface at the upper end of the middle section of the adapter ring (1) and is in communication with the corresponding cavity (3). The end of the pagoda joint (5) is adapted to be inserted into the annular groove (4-3) on the corresponding end face of the water connector (4-1), and a sealing washer (10) is arranged between the pagoda joint (5) and the annular groove (4-3). The locking nut (6) is sleeved on the pagoda joint (5) and is tightly fixed on the end of the water connector (4-1) by the external thread of the water connector (4-1).

7. The electron gun adapter water cooling structure for an electron beam cold hearth vacuum melting furnace according to claim 6, characterized in that: The outer circumferential wall of the connection end of the pagoda joint (5) and the water connector (4-1) is provided with a convex ring (5-1). The inner blocking ring (6-1) is integrally arranged on the inner wall of the port of the non-threaded end of the locking nut (6). When the locking nut (6) is adapted to the external thread of the water connector (4-1), the inner blocking ring (6-1) is tightly sealed against the sealing washer (10) by moving the convex ring (5-1) towards the water connector (4-1) to the end of the pagoda joint (5).

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