CN211013277U

CN211013277U - Thermocouple protection tube for low-pressure heat preservation furnace

Info

Publication number: CN211013277U
Application number: CN201922401009.4U
Authority: CN
Inventors: 徐叶新
Original assignee: Yixing Huajing Technology Co ltd
Current assignee: Yixing Huajing Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-07-14
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a thermocouple protection tube for low pressure heat preservation furnace, including the protection tube base, the inside of protection tube base is respectively through the top threaded connection of screw thread and the top of inner casing and outer casing, the outside cover of inner casing is equipped with the outer casing, the bottom cover of outer casing is equipped with the protection tube mounting bracket, the avris of protection tube mounting bracket alternates and is connected with the bolt, the fixed protection tube mount pad that is equipped with in top of protection tube base, the avris of protection tube mount pad is equidistant to be offered the draw-in groove, the draw-in groove is pegged graft with the one end of installation arm, the installation arm passes through clamping screw and protection tube mount pad fixed connection, the utility model discloses an being equipped with inner casing and outer casing, playing the effect of dual protection to the thermocouple in the inner casing cavity; the angle between the mounting arm and the mounting seat of the protection tube is adjusted, so that the mounting plate is easy to adapt to mounting plates of different shapes, and the base of the protection tube is stable.

Description

Thermocouple protection tube for low-pressure heat preservation furnace

Technical Field

The utility model relates to a protection tube, in particular to thermocouple protection tube for low pressure heat preservation stove belongs to heat preservation stove technical field.

Background

The holding furnace is an important component of a low-pressure casting furnace, and aims to overcome the defects that after the charge level is ignited and combusted at high temperature and leaves an igniter, the charge level is suddenly exposed to the atmosphere, so that the red-hot charge level is rapidly cooled, the vitreous quality is obviously increased in the mineral composition of surface-layer sinter, and the strength is reduced. The holding furnace has many types, such as coke oven, gas oven, resistance furnace, induction furnace, etc. But at present, the resistance heating furnace is widely used, and the electric heating reverberatory furnace is used secondly.

The thermocouple utilizes the thermoelectric effect to realize the temperature measurement function, and the wide application in the holding furnace, when the thermocouple senses the temperature in the holding furnace and is low excessively, the intensification process of control holding furnace to make the temperature in the holding furnace maintain at the settlement temperature range, play good heat preservation effect, the thermocouple is equipped with the protection tube more. The existing thermocouple protection tube is mostly a single protection tube, and once the protection tube is damaged, the protection tube needs to be replaced immediately, so that the maintenance cost is increased, the installation mode of the protection tube is single, and the stability is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thermocouple protection tube for low pressure heat preservation stove to it is mostly single protection tube to propose current thermocouple protection tube in solving above-mentioned background art, in case take place the damage, then need change immediately, increases cost of maintenance, and the protection tube mounting means is single, the not good problem of stability.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thermocouple protection tube for low pressure heat preservation stove, includes the protection tube base, the inside of protection tube base is respectively through the top of screw thread and inner casing and the top threaded connection of outer casing, the outside cover of inner casing is equipped with outer casing, the bottom cover of outer casing is equipped with the protection tube mounting bracket, the avris of protection tube mounting bracket alternates and is connected with the bolt, the fixed protection tube mount pad that is equipped with in top of protection tube base, the draw-in groove has been seted up to the avris of protection tube mount pad equidistant, the draw-in groove is pegged graft with the one end of installation arm, the installation arm through clamping screw with protection tube mount pad fixed.

As an optimized technical scheme of the utility model, the air vent has been seted up to the avris of protection tube base, the detachable sealing plug is inlayed and is equipped with to the inside of air vent.

As an optimal technical scheme of the utility model, the inner casing with the outer pillar is ceramic pipe, the inner wall surface of inner casing has been paintd the alumina protective layer, the avris at inner casing top with the exhaust hole that a plurality of equidistant setting was all seted up to the avris at outer pillar top, one of them exhaust hole and one the air vent intercommunication.

As a preferred technical scheme of the utility model, the central point of protection tube mount pad puts the department and has seted up the cavity, the bottom of cavity with the top intercommunication of inner sheath cavity, the diameter of cavity with the diameter of inner sheath cavity equals.

As a preferred technical scheme of the utility model, the other end interlude of installation arm is connected with the bolt, the tip of the installation arm other end is the fillet structure, the installation arm passes through bolt and external mounting panel fixed connection.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a thermocouple protection tube for low pressure heat preservation stove, through being equipped with inner protecting pipe and outer pillar, play the effect of duplicate protection to the thermocouple in the inner protecting pipe cavity, convenient dismantlement and installation inner protecting pipe and outer pillar, easy operation; through adjusting the angle between installation arm and the protection tube mount pad, easily adapt to the mounting panel of different shapes, make the protection tube base reach stable purpose, through being equipped with the protection tube mounting bracket, fix once more the outer tube, use comparatively safely.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic top view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is an enlarged schematic structural diagram of the position B of the present invention.

In the figure: 1. a protective tube base; 2. an inner sheath; 3. an outer protecting pipe; 4. an alumina protective layer; 5. a protective tube mounting rack; 6. a bolt; 7. a sealing plug; 8. a protective tube mounting base; 9. a card slot; 10. mounting an arm; 11. a clamping screw; 12. a cavity; 13. a vent hole; 14. and (4) exhausting holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not 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.

Please refer to fig. 1-4, the utility model provides a thermocouple protection tube for low pressure heat preservation stove, including protection tube base 1, protection tube base 1's inside is respectively through the top of screw thread and inner casing 2 and the top threaded connection of outer casing 3, the outside cover of inner casing 2 is equipped with outer casing 3, the bottom cover of outer casing 3 is equipped with protection tube mounting bracket 5, the avris of protection tube mounting bracket 5 alternates and is connected with bolt 6, the fixed protection tube mount pad 8 that is equipped with in top of protection tube base 1, draw-in groove 9 has been seted up to the avris of protection tube mount pad 8 equidistant, draw-in groove 9 is pegged graft with the one end of installation arm 10, installation arm 10 is through clamping

screw

11 and 8 fixed connection of protection.

Preferably, the side of the protection tube base 1 is provided with a vent hole 13, a detachable sealing plug 7 is embedded in the vent hole 13, and the sealing plug 7 plays a role of sealing the vent hole 13.

Preferably, inner casing 2 and outer pillar 3 are ceramic pipe, the inner wall surface of inner casing 2 is paintd an alumina protective layer 4, the exhaust hole 14 that a plurality of equidistant setting was all seted up to the avris at inner casing 2 top and the avris at outer pillar 3 top, one of them exhaust hole 14 and an air vent 13 intercommunication, sealing plug 7 is pulled down, make air vent 13 and exhaust hole 14 intercommunication, and communicate with each other with the external world, prevent that the gas in the space between inner casing 2 and the outer pillar 3 can't be got rid of, play the guard action to inner casing 2 and outer pillar 3.

Preferably, the central point of protection tube mount pad 8 puts the department and has seted up cavity 12, the bottom of cavity 12 and the top intercommunication of interior casing 2 cavitys, and the diameter of cavity 12 equals with the diameter of interior casing 2 cavitys, and cavity 12 and interior casing 2 cavitys intercommunication facilitate the installation thermocouple.

Preferably, the other end of installation arm 10 alternates and is connected with bolt 6, and the tip of the installation arm 10 other end is the fillet structure, and installation arm 10 passes through bolt 6 and external mounting panel fixed connection, and convenient and external mounting panel fixed connection plays stable effect to protection tube base 1.

When in specific use, the utility model relates to a thermocouple protection tube for low pressure heat preservation stove, at first, inner protecting pipe 2 and protection tube base 1 threaded connection, secondly according to same mode installation outer protecting pipe 3, and pull down sealing plug 7 in air vent 13, make air vent 13 and exhaust hole 14 communicate, and communicate with the external world, prevent that the gas in the space between inner protecting pipe 2 and outer protecting pipe 3 can't get rid of, play the guard action to inner protecting pipe 2 and outer protecting pipe 3, establish protection tube mounting bracket 5 in the bottom cover of outer protecting pipe 3, protection tube mounting bracket 5 can make outer protecting pipe 3 and oven keep certain distance, it is comparatively safe to use, the life of outer protecting pipe 3 is prolonged, adjust the angle between installation arm 10 and protection tube mounting base 8 through clamping screw 11, easily satisfy the use of mounting panels of different shapes, play stable effect to protection tube base 1, the reduction is to the injury of the thermocouple of 2 cavity internally mounted of inner protecting tube, and overall structure is simple, easy to assemble and dismantle, labour saving and time saving reduces cost of maintenance.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a thermocouple protection tube for low pressure heat preservation stove, includes protection tube base (1), its characterized in that, the inside of protection tube base (1) is respectively through the top of screw thread and inner casing (2) and the top threaded connection of outer casing (3), the outside cover of inner casing (2) is equipped with outer casing (3), the bottom cover of outer casing (3) is equipped with protection tube mounting bracket (5), the avris of protection tube mounting bracket (5) alternates and is connected with bolt (6), the fixed protection tube mount pad (8) that is equipped with in top of protection tube base (1), draw-in groove (9) have been seted up to the avris of protection tube mount pad (8) equidistant, draw-in groove (9) are pegged graft with the one end of installation arm (10), installation arm (10) through clamping screw (11) with protection tube mount pad (8) fixed connection.

2. The thermocouple protection tube for a low-pressure heat preservation furnace according to claim 1, characterized in that: air vent (13) have been seted up to the avris of protection tube base (1), detachable sealing plug (7) have been inlayed to the inside of air vent (13).

3. The thermocouple protection tube for a low-pressure heat preservation furnace according to claim 2, characterized in that: interior casing (2) with outer pillar (3) are ceramic pipe, the inner wall surface of interior casing (2) has been paintd alumina protective layer (4), the avris at interior casing (2) top with exhaust hole (14) that a plurality of equidistant setting were all seted up to the avris at outer pillar (3) top, one of them exhaust hole (14) and one air vent (13) intercommunication.

4. The thermocouple protection tube for a low-pressure heat preservation furnace according to claim 1, characterized in that: the center position department of protection tube mount pad (8) has seted up cavity (12), the bottom of cavity (12) with the top intercommunication of inner casing (2) cavity, the diameter of cavity (12) with the diameter of inner casing (2) cavity equals.

5. The thermocouple protection tube for a low-pressure heat preservation furnace according to claim 1, characterized in that: the other end of installation arm (10) alternates and is connected with bolt (6), the tip of installation arm (10) the other end is the fillet structure, installation arm (10) pass through bolt (6) and external mounting panel fixed connection.