CN2155564Y

CN2155564Y - Hot-sleeve-type temp-measuring protective tube

Info

Publication number: CN2155564Y
Application number: CN 93236573
Authority: CN
Inventors: 赵金富
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-04-02
Filing date: 1993-04-02
Publication date: 1994-02-09
Anticipated expiration: 2003-04-02

Abstract

The utility model relates to a protective tube for a temperature measuring element, which is exclusively used for measuring temperature in large-capacity generator sets, and high-temperature high-pressure main steam lines in a vapor state, a liquid state, etc. and containers in other industrial departments. The utility model can play dust-proof, impact-proof and breakage-proof functions under high temperature, high pressure and impact with high flow rate. The utility model is mainly composed of a connecting box, an extension tube, a circle method seat and a pyrometric cone and is characterized in that a big-end-up conical tube 9 is arranged between the circle method seat 8 and the pyrometric cone 10, and a tube opening on the upper part of the extension tube is sheathed with a dust-proof and water-proof combined interface device through screw threads. The utility model innovates the traditional structure and has the advantages of long service life, fast reaction, high precision, low resistance, etc.

Description

Hot-sleeve-type temp-measuring protective tube

The utility model relates to a kind of temperature element protection tube.Be exclusively used in the measurement of temperature in the high temperature high pressure main steam line such as steam state, liquid state of heavy-duty generator group and other industrial sector and the container.

At present, the thermal sleeve temperature element protection tube that the heavy-duty generator group generally adopts is a WRE thermal sleeve temperature element protection pipe, its mainly by triangle dimension body 10, cylindrical tube 9, circule method seat 8, prolong pipe 7, temperature element 2 and wiring and close 1 etc. and form.As shown in Figure 1.The temperature element protection tube of this structure, because of losing or the imprecision of through wires hole of link cover of FIG, dust will fill up the protection tube internal diameter by the gap of terminal block, cause knot ash 6.The vibration that this knot ash process high temperature sintering and high flow rate cause makes the grey solid chalybeate of knot.Temperature element 2 in service makes dut temperature out of control in case damage can't more renew part, directly prestige rib safety in production.The temperature element protection tube of this structure since the circule method seat to being the straight cylinder pipe between the triangle cone, under the thermal shock of high temperature high pressure and hig flow speed, the straight cylinder pipe easily produces metal fatigue, causes fracture.Powerful High Temperature High Pressure vapour is gone out, and is very dangerous.At this moment, the protecting pipe that must shutdown could more renew certainly will cause enterprise's heavy losses.

But the purpose of this utility model provide a kind of can be under high temperature, high pressure, high flow rate impact anti-gray, protecting against shock, anti-fracture three solar heat protection shell type temperature element protection tubes.

The purpose of this utility model is achieved in that the circule method seat of protection tube and the cylindrical tube between the triangle cone is designed to tapered tube; Prolonging pipe upper orifice thread set collar seal combination interface arrangement.

The utility model has the advantages that: because of the circule method seat of protection tube and the cylindrical tube between the triangle cone are modified into tapered tube, so shock resistance improve greatly, thereby avoided fracture accident to take place thus.Owing to set up screw thread collar seal combination interface prolonging the pipe upper orifice, this will prevent that dust and steam from entering and cause the grey fault of knot in the protection tube.The utility model also has characteristics convenient, flexible when changing temperature element simultaneously, thereby has satisfied the requirement of producing, and has guaranteed the safe and continuous cycle of operation, has improved production efficiency.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 2 is a concrete structure cut-open view of the present utility model.

Describe in detail below in conjunction with accompanying drawing 2.

The utility model is made up of terminal box 1, temperature element 2, prolongation pipe 7, circule method seat 8, triangle cone 10.It is characterized in that: the temperature element protection tube between circule method seat 8 and the triangle cone 10 is up big and down small tapered tube 9.At the combined interface device of upper orifice thread set that prolongs pipe 7, and be enclosed within on the temperature element 2, the structure of this combined interface device is that the upper end is a pressure cap 6, and collar 5 is equipped with in pressure cap 6 inside; The lower end is a sealing socket 3, and the center section between the top and bottom is a seal 4.

Its principle of work is such: depress long circle 5 with pressure cap 6, make seal 4 compressions, then ash and water just can not enter in the protection tube.Because the effect of the acting force of collar 5 and seal 4, thereby ideally reach the protective effect of anti-gray and waterproof.

Claims

1, a kind of three solar heat protection shell type thermometric protection tubes, by terminal box 1, temperature element 2 prolongs pipe 7, and circule method seat 8, triangle cone 10 are formed.It is characterized by:

(1) the temperature element protection tube between circule method seat 8 and the triangle cone 10 is up big and down small tapered tube 9;

(2) at the combined interface device of upper orifice thread set that prolongs pipe 7, and be enclosed within on the temperature element 2, the upper end of this combined interface device is that collar 5 is equipped with in pressure cap 6, pressure cap 6 inside; The lower end is a sealing socket 3, and the center section between the top and bottom is a seal 4.