CN218034436U

CN218034436U - Upper cover atmosphere air inlet preheating device of vacuum sintering furnace stone ink box

Info

Publication number: CN218034436U
Application number: CN202122392369.XU
Authority: CN
Inventors: 卢柏全; 洪带娣; 洪翠翠; 纪国章
Original assignee: Chuzhou Meiyang Vacuum Technology Co ltd
Current assignee: Chuzhou Meiyang Vacuum Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-12-13
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a preheating device admits air of upper cover atmosphere of vacuum sintering stove stone ink horn, the induction cooker comprises a cooker bod, be equipped with the heat-insulating box in the furnace body, heat-insulating box furnace body inboard links firmly, the furnace body top is run through to peg graft there is the intake pipe, the end of intake pipe is connected with the L venturi tube, the bottom of L venturi tube is run through the top of pegging graft at the heat-insulating box, the front side of heat-insulating box is the opening design, and has linked firmly heating coil on the heat-insulating box rear side inner wall, heating coil's front side is equipped with guiding device, guiding device's front side is equipped with two stone ink horns box. The utility model discloses a be equipped with the cuboid case, when gaseous bottom through the baffle under the drive of air current enters into the region between baffle and the baffle, gaseous entering three cuboid incasement this moment to through the through-hole on the cuboid case admission valve place region on reacing the graphite box, thereby make the temperature that gets into gas in the graphite box reach reaction temperature, guaranteed the reaction efficiency in the graphite box.

Description

Upper cover atmosphere air inlet preheating device of vacuum sintering furnace stone ink box

Technical Field

The utility model belongs to the technical field of the vacuum sintering stove, in particular to preheating device admits air of upper cover atmosphere of vacuum sintering stove stone ink horn.

Background

The vacuum sintering furnace is characterized in that under the protection state of filling hydrogen after vacuumizing, a tungsten crucible in a coil generates high temperature by utilizing the principle of medium-frequency induction heating, and the high temperature is conducted to work through thermal radiation, so that the vacuum sintering furnace is suitable for forming and sintering powder of refractory alloys such as tungsten, molybdenum and alloys thereof by scientific research and military industry units.

The existing vacuum sintering furnace is in the process of introducing protective gas into the furnace body, after the protective gas enters the furnace body, the gas enters the heating area through the pores of the heat insulation layer in a diffusion mode and then enters the interior of the graphite box through the gas inlet valve of the graphite box, and the temperature of the gas entering the graphite box does not reach the reaction temperature, so that the reaction efficiency is influenced.

Therefore, it is necessary to invent an upper cover atmosphere inlet preheating device of a vacuum sintering furnace stone ink box to solve the problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a preheating device admits air of upper cover atmosphere of vacuum sintering stove stone ink horn to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a preheating device that admits air of upper cover atmosphere of vacuum sintering stove stone ink horn, includes the furnace body, be equipped with the heat-insulating box in the furnace body, heat-insulating box furnace body inboard links firmly, the furnace body top is run through to peg graft there is the intake pipe, the end of intake pipe is connected with the L venturi tube, the bottom of L venturi tube is run through the top of pegging graft at the heat-insulating box, the front side of heat-insulating box is the opening design, and has linked firmly heating coil on the heat-insulating box rear side inner wall, heating coil's front side is equipped with guiding device, guiding device's front side is equipped with two graphite boxes, the bottom of graphite box is equipped with a plurality of support frames, and support frame and heat-insulating box bottom link firmly, the front side of stone ink horn articulates there is the lid, graphite box top and both sides all peg graft there is the admission valve.

Further, the guiding device includes the baffle, the baffle is located L venturi tube bottom open-ended front side, the top and the both sides of baffle link firmly with heat-insulating box top and both sides inner wall respectively, the preceding parallel of baffle is equipped with the baffle, the baffle link firmly with heat-insulating box inner wall all around, the baffle front side runs through to peg graft has three cuboid case, and three cuboid case is relative with the top and the both sides of baffle respectively, the equal open design in top and the back of cuboid case, one side that graphite box was kept away from to the cuboid case links firmly with the heat-insulating box inner wall, the through-hole has been seted up to one side that the cuboid case is close to the stone ink horn.

Furthermore, a protection plate is arranged at the bottom opening of the L-shaped pipe, the protection plate is fixedly connected with the baffle, and the free end of the protection plate inclines downwards.

Further, cuboid incasement side is equipped with the L shaped plate, the front side of L shaped plate does not contact with the cuboid case, and L shaped plate and cuboid case are close to one side of stone ink horn and are formed semi-enclosed space.

Furthermore, a plurality of connecting pipes penetrate through and are inserted into the partition plate, and the connecting pipes correspond to the top and the two sides of the partition plate respectively.

Further, it is three the cuboid case corresponds with the admission valve of graphite box top and both sides respectively, and the through-hole of cuboid bottom of the case portion is relative with the admission valve.

Furthermore, the bottom of furnace body is equipped with a plurality of supporting legs, and a plurality of supporting legs evenly distributed is in the bottom of furnace body.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a through being equipped with the cuboid case, when gas enters into the region between baffle and the baffle through the bottom of baffle under the drive of air current, gas entering three cuboid incasement this moment to reach the region that admission valve was located on the graphite box through the through-hole on the cuboid case, thus make the temperature of gas entering in the graphite box reach reaction temperature, guaranteed the reaction efficiency in the graphite box;

2. the utility model is provided with the baffle, when the gas enters the L-shaped pipe through the air inlet pipe and enters the area where the heating coil is located along the L-shaped pipe, the gas moves from top to bottom along the surface of the heating coil due to the action of the baffle, so that the gas can be fully heated by the heating coil;

3. the utility model discloses a be equipped with the L shaped plate, owing to there are two stone ink horn boxes, and the graphite box of front side is far away from heating coil, thereby make the graphite box internal temperature who is located the front side rise slower, after the gas after the heating gets into the cuboid case, gas can flow to the front side of L shaped plate earlier under the effect of L shaped plate, when the front side of L shaped plate is reachd to gas, gas just can flow the air inlet valve position on two graphite boxes through the through-hole on the L shaped plate, thereby guarantee that gas after the heating can preferentially get into in the graphite box that is located the front side, and then guarantee that the temperature rise in two graphite boxes is comparatively even.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a main surface sectional view of the present invention;

fig. 2 is a side sectional view of the present invention.

In the figure: 1. a furnace body; 2. a heat insulation box; 3. an air inlet pipe; 4. an L-shaped tube; 5. a heating coil; 6. a flow guide device; 61. a baffle plate; 62. a partition plate; 63. a rectangular box; 64. a through hole; 7. a graphite box; 8. a support frame; 9. a box cover; 10. an intake valve; 11. a protection plate; 12. an L-shaped plate; 13. and (4) connecting the pipes.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely illustrate the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides an upper cover atmosphere inlet air preheating device of a vacuum sintering furnace stone ink box as shown in figure 1-2, which comprises a furnace body 1, the bottom of the furnace body 1 is provided with a plurality of supporting legs, and the plurality of supporting legs are evenly distributed at the bottom of the furnace body 1, a heat insulation box 2 is arranged in the furnace body 1, the inner side of the furnace body 1 of the heat insulation box 2 is fixedly connected, an air inlet pipe 3 is inserted and connected at the top of the furnace body 1, the bottom of the air inlet pipe 3 is connected with an L-shaped pipe 4, the bottom of the L-shaped pipe 4 is inserted and connected at the top of the heat insulation box 2, a protection plate 11 is arranged at the bottom opening of the L-shaped pipe 4, the protection plate 11 is fixedly connected with a baffle 61, the free end of the protection plate 11 is inclined downwards, the front side of the heat insulation box 2 is in an opening design, a heating coil 5 is fixedly connected on the inner wall of the rear side of the heat insulation box 2, a flow guiding device 6 is arranged at the front side of the heating coil 5, two graphite boxes 7 are arranged at the front side, a plurality of support frames 8 are arranged at the bottom of the stone ink box 7, and the support frames are fixedly connected with the inner bottom of the heat insulation box 2, a box 7, a box cover 9, a plug-in which is hinged with a plug-in the graphite box 7, and two sides of the graphite box 10 are arranged at the top of the plug-in the graphite box 2;

after gas enters the L-shaped pipe 4 from the gas inlet pipe 3, the gas directly enters the area where the heating coil 5 is located along the opening at the bottom of the L-shaped pipe 4, so that the gas is directly heated by the heating coil 5, and then the heated gas flows to the position of the gas inlet valve 10 on the graphite box 7 along the flow guide device 6, so that the heated gas can enter the interior of the graphite box 7 through the gas inlet valve 10, and further the reaction efficiency of the interior of the graphite box 7 is ensured.

As shown in fig. 1-2, the flow guiding device 6 includes a baffle 61, the baffle 61 is located on the front side of the bottom opening of the L-shaped tube 4, the top and two sides of the baffle 61 are fixedly connected with the top and two sides of the heat insulation box 2 respectively, a partition plate 62 is arranged in parallel in front of the baffle 61, the periphery of the partition plate 62 is fixedly connected with the peripheral inner walls of the heat insulation box 2, a plurality of connecting pipes 13 are inserted in the partition plate 62 in a penetrating manner, the plurality of connecting pipes 13 respectively correspond to the top and two sides of the partition plate 62, three rectangular box 63 are inserted in the front of the partition plate 62 in a penetrating manner, the three rectangular box 63 respectively correspond to the top and two sides of the partition plate 62, the top and the back of the rectangular box 63 are both open, one side of the rectangular box 63, which is far away from the stone box 7, is fixedly connected with the inner walls of the heat insulation box 2, one side of the rectangular box 63, which is close to the stone box 7, the three rectangular box 63 respectively correspond to the air inlet valves 10 at the top and two sides of the graphite box 7, the through hole 64 at the bottom of the rectangular box 63 is opposite to the air inlet valve 10, the L-shaped plate 63, the inner side of the rectangular box 63 is provided with the L-shaped plate 12, and the half-shaped plate of the rectangular box is not close to the rectangular box 7;

after the gas enters the L-shaped pipe 4 through the gas inlet pipe 3, the gas enters the area where the heating coil 5 is located along the L-shaped pipe 4, the gas moves from top to bottom along the surface of the heating coil 5 due to the action of the baffle 61, so that the gas can be fully heated by the heating coil 5, the heated gas enters the area between the baffle 61 and the partition plate 62 through the bottom of the baffle 61 under the driving of the gas flow, at the moment, part of the gas enters the area where the stone ink box 7 is located through the connecting pipe 13, so that the temperature of the area is increased, the rest of the gas enters the three cuboid boxes 63 and reaches the area where the gas inlet valve 10 is located on the stone ink box 7 through the through holes 64 in the cuboid boxes 63, so that the temperature of the gas entering the stone ink box 7 reaches the reaction temperature, and the reaction efficiency in the graphite ink box 7 is ensured;

owing to there are two graphite boxes 7, and the graphite box 7 of front side is far away from heating coil 5, thereby make the inside temperature rise of graphite box 7 that is located the front side slower, after the gas entering cuboid case 63 after the heating, gaseous can flow to the front side of L shaped plate 12 earlier under the effect of L shaped plate 12, when gaseous front side that reachs L shaped plate 12, gaseous just can flow the admission valve 10 position on two stone ink horn 7 through the through-hole 64 on the L shaped plate 12, thereby guarantee that the gas after the heating can preferentially get into the graphite box 7 that is located the front side, and then guarantee that the temperature in two graphite boxes 7 rises comparatively evenly.

Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an upper cover atmosphere preheating device that admits air of vacuum sintering stove stone ink horn, includes furnace body (1), its characterized in that: the utility model discloses a furnace body, including furnace body (1), be equipped with heat-insulating box (2) in furnace body (1), heat-insulating box (2) furnace body (1) inboard links firmly, furnace body (1) top is run through to peg graft and is had intake pipe (3), the end of intake pipe (3) is connected with L venturi tube (4), the top of pegging graft at heat-insulating box (2) is run through to the bottom of L venturi tube (4), the front side of heat-insulating box (2) is the open design, and has linked firmly heating coil (5) on heat-insulating box (2) rear side inner wall, the front side of heating coil (5) is equipped with guiding device (6), the front side of guiding device (6) is equipped with two graphite boxes (7), the bottom of graphite box (7) is equipped with a plurality of support frames (8), and support frame (8) link firmly with heat-insulating box (2) bottom in, the front side of graphite box (7) articulates there is lid (9), graphite box (7) top and both sides all peg graft there are admission valve (10).

2. The upper cover atmosphere intake preheating device of the vacuum sintering furnace stone ink box according to claim 1, characterized in that: flow guide device (6) are including baffle (61), baffle (61) are located L venturi tube (4) bottom open-ended front side, the top and both sides of baffle (61) link firmly with heat-insulating box (2) top and both sides inner wall respectively, the preceding parallel of baffle (61) is equipped with baffle (62), the inner wall links firmly all around with heat-insulating box (2) around baffle (62), baffle (62) front side runs through to peg graft has three cuboid case (63), and three cuboid case (63) are relative with the top and both sides of baffle (62) respectively, the top and the equal open design in back of cuboid case (63), one side that graphite box (7) were kept away from in cuboid case (63) links firmly with heat-insulating box (2) inner wall, through-hole (64) have been seted up to one side that cuboid case (63) are close to graphite box (7).

3. The upper cover atmosphere intake preheating device of the vacuum sintering furnace stone ink box according to claim 2, characterized in that: the bottom opening of L venturi tube (4) is equipped with protection shield (11), protection shield (11) and baffle (61) link firmly, and the free end downward sloping of protection shield (11).

4. The upper cover atmosphere inlet gas preheating device of the vacuum sintering furnace stone ink box according to claim 2, characterized in that: cuboid case (63) inboard is equipped with L shaped plate (12), the front side of L shaped plate (12) does not contact with cuboid case (63), and L shaped plate (12) and cuboid case (63) are close to one side of graphite box (7) to forming semi-enclosed space.

5. The upper cover atmosphere inlet gas preheating device of the vacuum sintering furnace stone ink box according to claim 2, characterized in that: a plurality of connecting pipes (13) penetrate through and are inserted into the partition plate (62), and the connecting pipes (13) correspond to the top and the two sides of the partition plate (62) respectively.

6. The upper cover atmosphere intake preheating device of the vacuum sintering furnace stone ink box as claimed in claim 4, wherein: three cuboid case (63) correspond with admission valve (10) at graphite box (7) top and both sides respectively, and through-hole (64) and admission valve (10) of cuboid case (63) bottom are relative.

7. The upper cover atmosphere inlet gas preheating device of the vacuum sintering furnace stone ink box according to claim 1, characterized in that: the bottom of furnace body (1) is equipped with a plurality of supporting legs, and a plurality of supporting legs evenly distributed is in the bottom of furnace body (1).