CN201130064Y

CN201130064Y - Novel temperature measuring apparatus

Info

Publication number: CN201130064Y
Application number: CNU2007201878860U
Authority: CN
Inventors: 周婷婷
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-08
Filing date: 2007-10-08
Publication date: 2008-10-08
Anticipated expiration: 2017-10-08

Abstract

The utility model relates to a device used for measuring the temperature of high temperature air current in industrial high temperature furnaces, the measuring device comprises a metallic protecting layer (1), and a cooling equipment (2) and a thermocouple (3) which are casted in the metallic protecting layer (1), since the cooling equipment (2) is casted in the metallic protecting layer (1), which isn't washed out by the external air current and isn't beaten by furnace materials, thereby the cooling equipment is not only not easy to leak water, but also can supply an effective cooling to the metallic protecting layer (1), which guarantees the necessary strength and the rigidity, and effectively prolongs the service life of the measuring device.

Description

A kind of novel temperature measurement device

Technical field

This utility model relates to a kind of device of measuring industrial high temperature stove gas stream in the stove temperature.

Technical background

Industrial high temperature furnace temperature measurement mechanism utilizes thermopair to come gas flow temperature in the induction furnace, thereby obtains the Temperature Distribution in the high temperature furnace, for the operation of high temperature furnace provides reliable foundation.This device generally is made up of the support bar that supports thermopair and the thermopair of induction air flow temperature etc., and the temperature measuring equipment with refrigerating function also is provided with coolant guiding channel etc. in support bar.

Because the temperature in the high temperature furnace is higher, temperature measuring equipment need be measured the temperature in high temperature furnace centre simultaneously, and its support bar must extend the center of high temperature furnace, so support bar keeps necessary strength and rigidity most important in hot environment.Generally speaking, in a single day support bar destroys, and temperature measuring equipment has just been died.

Guarantee support bar necessary strength and rigidity in hot environment,, also need support bar is cooled off except using exotic material.Therefore the cooling that keeps good is the excellent or bad key of temperature measuring equipment result of use.But the defective that the cooling infrastructure that existing water-cooling type temperature measuring equipment exists support bar leaks easily.

The support bar of existing water-cooled temperature measuring equipment is that the steel plate welding forms water stream channel, as Fig. 5, shown in Figure 6.Because weld seam is more longer, weld seam is ftractureed by the effect of thermal stress in high temperature furnace easily, and water stream channel leaks, and support bar has lost refrigerating function immediately.The support bar that also has a kind of water-cooled temperature measuring equipment is a weldless steel tube, but owing to will form water stream channel, the weldless steel tube end also needs to weld shutoff.Simultaneously because the cooling infrastructure of above two kinds of temperature measuring equipment support bars is directly exposed to washing away in the strike environment with furnace charge of high temperature gas flow, the cooling infrastructure of support bar also can break and leak and lose refrigerating function.

The utility model content

A kind of novel temperature measurement device described in the utility model, the technical matters that solve provides a kind of novel temperature measurement device of cooling infrastructure antileaking of support bar.

The technical scheme that technical matters adopted that the utility model solves is, at first make a mould that cavity shape is consistent with the temperature measuring equipment profile, to be fixed on by the cooling infrastructure that pipeline is made in the die cavity of mould, then with liquid metal direct pouring in die cavity.After the liquid metal solidification cooling infrastructure is wrapped in solid metallic inside, promptly outside cooling infrastructure, forms a coat of metal.Coat of metal and inner cooling infrastructure have formed the support bar of thermal detector.

The cooling infrastructure of support bar described in the utility model can be that single pipe or many pipelines bend and form, and cooling duct can be placed arbitrarily in coat of metal inside.

The cooling infrastructure of support bar described in the utility model can be that two different pipelines of diameter are nested together, and the bigger pipeline of diameter is at faces end head plugging.Diameter forms the continuous passage of heat eliminating medium than the inner chamber of gap between the outer wall of the inwall of large pipeline and diameter smaller conduit and diameter smaller conduit.

A kind of novel temperature measurement device described in the utility model; because thermopair will be set in thermal detector; the passage that the cavity of laying thermopair and thermopair contact with coal gas need be set in coat of metal, perhaps with thermocouple protective casing also direct pouring in coat of metal inside.

The beneficial effect of a kind of novel temperature measurement device described in the utility model is; the cooling infrastructure of its support bar casts in coat of metal inside; do not suffer the strike with furnace charge of washing away of extraneous air-flow; both be not easy to leak; can provide effective cooling to coat of metal again; guarantee temperature measuring equipment support bar necessary strength and rigidity, prolong the life-span of temperature measuring equipment effectively.

Description of drawings

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 looks diagrammatic cross-section for the master of a kind of concrete structure of the present utility model;

Fig. 2 be among Fig. 1 A-A to cut-open view;

Fig. 3 looks diagrammatic cross-section for the master of another kind of concrete structure of the present utility model;

Fig. 4 be among Fig. 3 B-B to cut-open view;

Fig. 5 looks diagrammatic cross-section for the master of existing water-cooled temperature measuring equipment;

Fig. 6 be among Fig. 5 C-C to cut-open view.

Arrow in the accompanying drawing is the heat eliminating medium flow direction.

Embodiment

Embodiment one: weldless steel tube is bent into the U-shaped pipe as cooling infrastructure 2; be placed in the die cavity; the liquid metal of casting then; form coat of metal 1 after the liquid metal cooled and solidified, be provided with in the coat of metal 1 and place thermopair 3 and the cavity 5 of thermocouple sheath 4 and the passage 6 that thermopair 3 contacts with extraneous air-flow.

Two: two kinds of different weldless steel tubes of diameter of embodiment are nested together; bassoon is at faces end head plugging; tubule is placed in the bassoon; form cooling infrastructure 2; cooling infrastructure 2 and thermocouple sheath 4 are placed in the die cavity; the liquid metal of casting then forms coat of metal 1 after the liquid metal cooled and solidified, the passage 6 that thermopair 3 contacts with extraneous air-flow is set in the coat of metal 1.

Claims

1. a novel temperature measurement device is made up of coat of metal (1), cooling infrastructure (2) and thermopair (3) etc., and it is characterized in that: cooling infrastructure (2) casts in coat of metal (1) inside.

2. according to claims 1 described a kind of novel temperature measurement device, it is characterized in that: cooling infrastructure (2) can be that individual tubes or many pipes bend and form, and the pipe that bends can be placed arbitrarily in coat of metal (1) inside.

3. according to claims 1 described a kind of novel temperature measurement device, it is characterized in that: cooling infrastructure (2) can be the different pipe box of two diameters together, the bigger pipe of diameter is at faces end head plugging, the pipe less with diameter forms coolant guiding channel.

4. according to claims 1 described a kind of novel temperature measurement device; it is characterized in that: coat of metal (1) can be provided with the cavity (5) of placing thermopair (3) and protective casing (4), also thermocouple protective casing (4) can be cast in coat of metal (1) inside.