CN213841787U - Vacuum furnace fast cooling system - Google Patents

Abstract

The utility model relates to a vacuum furnace fast cooling system belongs to the vacuum furnace field, and it is including setting up the finned tube between the oven of vacuum furnace and heat preservation, the finned tube extends to the oven along axial other end along axial from the oven along axial one end, and finned tube one end stretches out the heat preservation and is connected with the inlet tube, and the finned tube other end stretches out the heat preservation and is connected with the drain pipe. The cooling device solves the problem of low cooling efficiency of the related art, and has the effect of improving the cooling efficiency of the furnace wall.

Description

Vacuum furnace fast cooling system

Technical Field

The application relates to the field of vacuum furnaces, in particular to a quick cooling system of a vacuum furnace.

Background

The vacuum furnace is a device for heating in a vacuum environment, a heating system in the furnace can be directly electrified and heated by a resistance furnace wire (such as a tungsten wire) or heated by high-frequency induction, and the highest temperature can reach about 3000 ℃. The method is mainly used for ceramic sintering, vacuum smelting, degassing of electric vacuum parts, annealing, brazing of metal parts, ceramic-metal sealing and the like.

The utility model with the publication number of CN207528057U discloses a hot-wall energy-saving vacuum furnace wall, which comprises a furnace body inner wall and a heat preservation layer arranged on the periphery of the furnace body inner wall, wherein the furnace body inner wall is fixed on the furnace bottom through a furnace body flange, a ventilation channel is reserved between the furnace body inner wall and the heat preservation layer, and a ventilation opening is reserved on the ventilation channel; the air duct is additionally arranged between the heat preservation layer and the hot wall, the opening and closing of the duct are realized by the air vents, the air duct is closed when the temperature is raised and preserved, the air duct is opened when the temperature is lowered, and the hot wall is cooled by air cooling through natural flowing or forced air blowers, so that the cooling speed is increased.

In view of the above-mentioned related technologies, the inventor believes that the cooling speed of natural air cooling is slow, and the air generated by the blower is difficult to enter all narrow air channels, so that the cooling efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the cooling efficiency to the oven, the application provides a vacuum furnace fast cooling system.

The application provides a quick cooling system of vacuum furnace adopts following technical scheme:

the utility model provides a vacuum furnace fast cooling system, is including setting up the finned tube between the oven of vacuum furnace and heat preservation, the finned tube extends to the oven along axial other end from the oven along axial one end, and finned tube one end stretches out the heat preservation and is connected with the inlet tube, and the finned tube other end stretches out the heat preservation and is connected with the drain pipe.

Through adopting above-mentioned technical scheme, when needing to cool down the oven, the user of service can communicate inlet tube and outside water source, then lead-in comdenstion water in to the inlet tube through outside water source, the comdenstion water gets into the finned tube via the inlet tube, because the finned tube is located between heat preservation and the oven, consequently, the comdenstion water flows the process in the finned tube and can absorbs the heat between heat preservation and the oven, absorbed thermal comdenstion water and discharged via the drain pipe, thereby realize accurate cooling, can improve cooling efficiency and can reduce the possibility of the extravagant energy when cooling down the oven again.

Optionally, the finned tube is spirally wound around the periphery of the furnace wall.

Through adopting above-mentioned technical scheme, can increase the area of contact between finned tube and oven and the heat preservation to further improve cooling efficiency.

Optionally, the finned tube and the heat insulation layer are fixed on one side close to the furnace wall.

By adopting the technical scheme, the possibility that the finned tubes are deformed or damaged due to overhigh temperature of the furnace wall during heating is reduced.

Optionally, the inlet tube sets up on heat preservation top, and the drain pipe sets up in heat preservation bottom.

Through adopting above-mentioned technical scheme, because the hot-air direction of motion between heat preservation and the oven is towards the heat preservation top, the inlet tube is from the leading-in comdenstion water in heat preservation top, and the comdenstion water in the finned tube forms the convection current with the hot-air, further improves cooling efficiency.

Optionally, the drain pipe is kept away from heat preservation one end and is equipped with circulation mechanism, and circulation mechanism includes cooling tank, intake pipe and water pump, and the drain pipe is kept away from heat preservation one end and is stretched into the cooling tank, and the heat preservation one end is kept away from to the inlet tube and links to each other with the intake pipe, and the water pump is installed on the intake pipe, and the intake pipe is kept away from inlet tube one end and is stretched into the cooling tank.

Through adopting above-mentioned technical scheme, absorbed thermal comdenstion water and in the drain pipe discharges into the cooling tank, extract the inlet tube once more via the intake pipe after the cooling, leading-in finned tube cyclic utilization can cool down the comdenstion water, further improves the cooling efficiency to the oven, can reduce the possibility of wasting water resource again.

Optionally, the circulation mechanism further comprises a plurality of fins arranged in the cooling pool, and a channel through which water flows is arranged between the fins and the side wall of the cooling pool.

Through adopting above-mentioned technical scheme, the water that gets into in the cooling bath flows by turns between the fin for the heat is absorbed by the fin, thereby will accelerate the comdenstion water cooling.

Optionally, one end of each fin in the axial direction is fixed to one of the vertical side walls of the cooling pool, the other end of each fin and the inner wall of the cooling pool form a channel at intervals, the channels formed by the two adjacent fins and the inner wall of the cooling pool are respectively close to the two opposite side walls of the cooling pool, the drain pipe is located at one end, far away from the channel, of the cooling pool, and the water taking pipe is located at one end, close to the channel, of the cooling pool.

By adopting the technical scheme, the condensed water guided into the cooling pool by the drain pipe forms S-shaped bypass flow between the fins, the contact time of the condensed water and the fins is prolonged, and the cooling efficiency of the condensed water is further improved.

Optionally, the fin has a wavy cross section.

Through adopting above-mentioned technical scheme, the wave can improve the fin surface area, improves the area of contact of fin and comdenstion water, and then further to the cooling efficiency of comdenstion water, can also improve the intensity of fin, reduces the fin and warp the possibility under the water impact.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the user can introduce condensed water into the water inlet pipe through an external water source, the condensed water enters the finned tube to absorb heat between the heat-insulating layer and the furnace wall and is discharged through the water discharge pipe, so that accurate cooling is realized, and the cooling efficiency of the furnace wall is improved;

2. the drain pipe discharges the condensed water which absorbs heat into the cooling pool for cooling, then the condensed water is pumped into the water inlet pipe again through the water taking pipe and guided into the finned tube for recycling, and the cooling efficiency is further improved by reducing the temperature of the cooling water;

3. the condensed water forms S-shaped streaming between the fins, so that the contact time of the condensed water and the fins is prolonged, and the cooling efficiency of the condensed water is further improved.

Drawings

FIG. 1 is a schematic view of the installation of a rapid cooling system of a vacuum furnace according to an embodiment of the present application;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic view for showing a state of finned tube mounting;

fig. 4 is a top view of the circulation mechanism of an embodiment of the present application.

Description of reference numerals: 1. a furnace wall; 2. a heat-insulating layer; 3. a finned tube; 4. a water inlet pipe; 5. a drain pipe; 6. a circulating mechanism; 61. a cooling pool; 62. a water intake pipe; 63. a water pump; 64. and a fin.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses vacuum furnace fast cooling system. Referring to fig. 1 and 2, the fast cold system of vacuum furnace is including setting up the finned tube 3 between the oven 1 of vacuum furnace and heat preservation 2, finned tube 3 encircles at oven 1 periphery, 3 one ends of finned tube stretch out heat preservation 2 and are connected with inlet tube 4, the finned tube 3 other end stretches out heat preservation 2 and is connected with drain pipe 5, so that when needing to cool down oven 1, the user of service can communicate inlet tube 4 and outside water source, make the comdenstion water get into finned tube 3 via inlet tube 4, because finned tube 3 is located between heat preservation 2 and the oven 1, therefore, can realize accurate cooling, reduce the possibility of the extravagant energy when cooling oven 1.

The furnace wall 1 and the heat preservation layer 2 are both cylindrical, the heat preservation layer 2 can be a ceramic heat preservation plate or a perlite plate, and the heat preservation layer 2 is sleeved on the periphery of the furnace wall 1 and used for slowing down heat dissipation of the furnace wall 1 during heating, so that the energy saving effect is achieved. The furnace wall 1 and the heat preservation layer 2 are arranged at intervals and used for installing the finned tubes 3.

Referring to fig. 2 and 3, the finned tube 3 is spirally fixed to the side of the insulating layer 2 close to the furnace wall 1 by screws, so that the possibility that the finned tube 3 is deformed or damaged due to an excessively high temperature of the furnace wall 1 during heating can be reduced. One of them tip of finned tube 3 is worn out from 2 lateral wall tops of heat preservation to with inlet tube 4 threaded connection, make inlet tube 4 can follow 1 tops of oven and begin to leading-in comdenstion water in the finned tube 3, the other tip of finned tube 3 is worn out and is linked to each other with 5 threads of drain pipe from 2 bottoms of heat preservation, make the comdenstion water in the finned tube 3 can follow 1 periphery of oven and absorb the heat, improve cooling efficiency. And because the hot air between the heat preservation layer 2 and the furnace wall 1 faces the top end of the heat preservation layer 2, the condensed water in the finned tube 3 and the hot air between the heat preservation layer 2 and the furnace wall 1 form convection, and the cooling efficiency is further improved.

Referring to fig. 1 and 4, in order to reduce the possibility of water waste, a circulation mechanism 6 is arranged at one end of the water discharge pipe 5 away from the heat insulation layer 2, and the circulation mechanism 6 comprises a cooling pool 61, a water intake pipe 62, a water pump 63 and a plurality of fins 64 arranged in the cooling pool 61. And one end of the water discharge pipe 5, which is far away from the heat insulation layer 2, extends into the cooling tank 61, so that the condensed water absorbing heat in the finned pipes 3 is discharged into the cooling tank 61 and is recycled after cooling. The inlet tube 4 is kept away from 2 one end of heat preservation and is linked to each other with intake pipe 62 screw thread, and water pump 63 installs on intake pipe 62, and intake pipe 62 is kept away from inlet tube 4 one end and is stretched into cooling tank 61 for the comdenstion water after cooling in cooling tank 61 is cyclic utilization in leading into inlet tube 4 once more.

The fins 64 are rectangular integrally, the fins 64 are arranged perpendicular to the bottom wall of the cooling pool 61 at intervals, one axial end of each fin 64 is welded and fixed with one vertical side wall of the cooling pool 61, and the other axial end of each fin 64 is arranged at intervals with the other inner wall of the cooling pool 61 so as to form a channel through which water flows. The channels formed by the two adjacent fins 64 and the inner wall of the cooling pool 61 are respectively arranged on two sides of the axis of the bottom wall of the cooling pool 61, so that condensed water discharged into the cooling pool 61 through the drain pipe 5 forms S-shaped streaming between the fins 64, the contact time of the condensed water and the fins 64 is prolonged, and the cooling efficiency of the condensed water is further improved.

Wherein, drain pipe 5 is located cooling bath 61 and is located and keeps away from passageway one end, and intake pipe 62 is located cooling bath 61 and is close to passageway one end, can further increase the comdenstion water and flow through the route in cooling bath 61, and then improve cooling efficiency. The section of the fin 64 is wavy, so that the surface area of the fin 64 can be increased, the contact area between the fin 64 and the condensate water is increased, the cooling efficiency of the condensate water is further improved, the strength of the fin 64 can be increased, and the possibility that the fin 64 deforms under the impact of water flow is reduced.

The specific use mode of a vacuum furnace fast cooling system of the embodiment of the application is as follows: when the oven is required to be cooled, the cooling water in the cooling pool 61 is introduced into the water inlet pipe 4 through the water taking pipe 62 and the water pump 63 for the user to use, and the cooling water enters the finned pipe 3, and the finned pipe 3 is located between the heat preservation layer 2 and the oven wall 1, so that the heat between the heat preservation layer 2 and the oven wall 1 can be absorbed in the flowing process of the cooling water in the finned pipe 3, thereby realizing accurate cooling and improving the cooling efficiency. The condensed water absorbing heat is discharged into the cooling tank 61 through the drain pipe 5, and is recycled after cooling, so that the possibility of wasting water resources when cooling the furnace wall 1 is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a vacuum furnace fast cooling system which characterized in that: the vacuum furnace comprises a finned tube (3) arranged between a furnace wall (1) of the vacuum furnace and a heat preservation layer (2), wherein the finned tube (3) extends to the other end of the furnace wall (1) along the axial direction from one end of the furnace wall (1) along the axial direction, one end of the finned tube (3) stretches out the heat preservation layer (2) and is connected with a water inlet tube (4), and the other end of the finned tube (3) stretches out the heat preservation layer (2) and is connected with a water outlet tube (5).

2. The vacuum furnace rapid cooling system according to claim 1, characterized in that: the finned tube (3) is spirally wound on the periphery of the furnace wall (1).

3. The vacuum furnace rapid cooling system according to claim 2, characterized in that: the finned tube (3) and the heat preservation layer (2) are fixed on one side close to the furnace wall (1).

4. The vacuum furnace rapid cooling system according to claim 1, characterized in that: the inlet tube (4) is arranged at the top end of the heat preservation layer (2), and the drain tube (5) is arranged at the bottom end of the heat preservation layer (2).

5. The vacuum furnace rapid cooling system according to claim 1, characterized in that: keep away from heat preservation (2) one end in drain pipe (5) and be equipped with circulation mechanism (6), circulation mechanism (6) are including cooling tank (61), intake pipe (62) and water pump (63), and heat preservation (2) one end is kept away from in drain pipe (5) stretches into cooling tank (61), and heat preservation (2) one end is kept away from in inlet tube (4) links to each other with intake pipe (62), and water pump (63) are installed on intake pipe (62), and intake pipe (4) one end is kept away from in intake pipe (62) stretches into cooling tank (61).

6. The vacuum furnace rapid cooling system according to claim 5, characterized in that: the circulating mechanism (6) further comprises a plurality of fins (64) arranged in the cooling pool (61), and a channel through which water flows is arranged between the fins (64) and the side wall of the cooling pool (61).

7. The vacuum furnace rapid cooling system according to claim 6, characterized in that: the fin (64) is fixed with one of them vertical lateral wall of cooling pond (61) along axial one end, and fin (64) other end and cooling pond (61) inner wall interval form the passageway, and the passageway that two adjacent fins (64) and cooling pond (61) inner wall formed is close to the relative both sides wall setting of cooling pond (61) respectively, and drain pipe (5) are located cooling pond (61) and keep away from passageway one end, and water intaking pipe (62) are located cooling pond (61) and are close to passageway one end.

8. The vacuum furnace rapid cooling system according to claim 7, characterized in that: the section of the fin (64) is wavy.

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