CN218002720U

CN218002720U - Thermocouple sleeve

Info

Publication number: CN218002720U
Application number: CN202222181398.6U
Authority: CN
Inventors: 朱家富
Original assignee: Automatic Control Equipment Co ltd Chongqing Chinese
Current assignee: Automatic Control Equipment Co ltd Chongqing Chinese
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-12-09
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a thermocouple sleeve, which comprises a connecting sleeve and a lower sleeve, wherein the upper end of the connecting sleeve is connected with a thermocouple junction box, and the lower end of the connecting sleeve is provided with a connecting flange which is connected with a medium base body through a bolt; the lower sleeve is inserted into the medium, the upper end of the lower sleeve is arranged at the lower end of the connecting sleeve, and the lower sleeve is clamped between the connecting sleeve and the medium substrate through a connecting flange; the utility model relates to a rationally, the structure is ingenious, belongs to the partly of thermocouple, realizes terminal box and temperature element's installation, compares with traditional sleeve pipe, the utility model discloses a split type, it is more convenient to dismantle and maintain to application scope is wider.

Description

Thermocouple sleeve

Technical Field

The utility model relates to a thermocouple field specifically says to a thermowell.

Background

The thermocouple is a commonly used temperature measuring element in a temperature measuring instrument, directly measures temperature, converts a temperature signal into a thermal electromotive force signal, and converts the thermal electromotive force signal into the temperature of a measured medium through an electric instrument. The appearance of various thermocouples is very different according to needs, but the basic structures of the thermocouples are almost the same, and the thermocouples are generally composed of main parts such as a thermode, an insulating sleeve protection tube, a junction box and the like, and are generally matched with a display instrument, a recording instrument and an electronic regulator for use.

The existing thermocouple well is mostly integral, although the integral type is simpler and more convenient, the manufacturing cost is lower, and the installation and the disassembly are also convenient; however, the sleeve inserted into the medium is easily worn and damaged by the medium, and if the sleeve is an integral sleeve, the entire sleeve needs to be replaced, so that the replacement of the integral sleeve is costly and wastes material.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned not enough, the utility model provides a reasonable in design here, the structure is ingenious, belongs to thermocouple sleeve pipe of thermocouple partly, realizes terminal box and temperature element's installation, compares with traditional sleeve pipe, the utility model discloses a split type, it is more convenient to dismantle and maintain to application scope is wider.

The utility model is realized in such a way, a thermocouple sleeve is constructed, which comprises a connecting sleeve and a lower sleeve, wherein the upper end of the connecting sleeve is connected with a thermocouple junction box, and the lower end of the connecting sleeve is provided with a connecting flange which is connected with a medium base body through a bolt; the lower sleeve is inserted into the medium, the upper end of the lower sleeve is installed at the lower end of the connecting sleeve, and the lower sleeve is clamped between the connecting sleeve and the medium base body through the connecting flange.

Further, a sealing ring arranged on the connecting sleeve is arranged between the connecting sleeve and the lower sleeve; the sealing performance is improved through the effect of the sealing gasket, and the influence of the external environment on the thermistor is reduced.

Furthermore, the connecting flange is provided with a mounting groove, the lower sleeve is provided with a connecting end, the connecting end is embedded into the mounting groove, and the sealing ring is positioned in the mounting groove. Through the setting, the installation of the lower casing can be facilitated, the assembling effect of the connecting casing and the lower casing after the installation is better, and the integrity is higher.

Furthermore, the connecting end is provided with a plurality of positioning lugs arranged in a circumferential array, and a plurality of positioning grooves matched with the positioning lugs are formed in the mounting groove. The arrangement improves the connection precision of the lower casing and the connecting casing, is convenient for positioning and installation of workers.

Furthermore, the end part of the positioning lug is provided with an inclined plane convenient for positioning, and the positioning of the positioning lug can be facilitated by the arrangement.

Preferably, the mounting groove is provided with a seal ring groove, and the depth of the seal ring groove is smaller than the section diameter of the seal ring. This setting can improve the leakproofness, and after lower sleeve pipe and adapter sleeve installation, can extrude the sealing washer, with the sealing washer extrusion back, improve the leakproofness.

Furthermore, the connecting flange is provided with a plurality of threaded holes, and the connecting sleeve is convenient to connect with the medium base body.

Furthermore, the upper end of the connecting sleeve is provided with a small-diameter mounting part, and the connecting sleeve can be conveniently connected with the junction box through the small-diameter mounting part.

The utility model has the advantages of as follows:

the utility model relates to a rationally, the structure is ingenious, is thermocouple sleeve, belongs to the partly of thermocouple, realizes terminal box and temperature element's installation, compares with traditional sleeve pipe, the utility model discloses a split type, it is more convenient to dismantle and maintain to application scope is wider.

The sleeve is reasonably divided into a connecting sleeve and a lower sleeve, wherein the connecting sleeve realizes the connection of the junction box and a medium substrate (such as a medium shell, and the like), and the lower sleeve is positioned in the medium to protect a thermosensitive element and improve the wear-resisting property; if the medium environment is complicated, after the lower sleeve is abraded, a worker only needs to replace the lower sleeve without integral replacement, and the replacement cost is reduced.

Drawings

FIG. 1 is a view of the usage state of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a perspective view of another perspective of the present invention;

fig. 4 is a schematic front view of the present invention;

FIG. 5 isbase:Sub>A cross-sectional view A-A of FIG. 4;

fig. 6 is a schematic perspective view of the casing of the present invention;

fig. 7 is a schematic perspective view of another view angle of the lower casing according to the present invention;

fig. 8 is a schematic perspective view of the connection sleeve of the present invention;

fig. 9 is a schematic perspective view of another view of the connection sleeve of the present invention;

in the figure; 1. connecting a sleeve; 11. a small-diameter mounting part; 12. a connecting flange; 13. a threaded hole; 14. installing a groove; 15. a positioning groove; 16. a seal ring groove; 2. setting a sleeve; 21. a connecting end; 22. positioning the bump; 3. a dielectric substrate; 4. and (4) bolts.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 9, and the technical solutions in the embodiments of the present invention will be clearly and completely described, 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.

The first embodiment;

a thermowell comprises a connecting sleeve 1 and a lower sleeve 2, wherein the upper end of the connecting sleeve 1 is connected with a thermocouple junction box, the lower end of the connecting sleeve is provided with a connecting flange 12, and the connecting flange 12 is connected with a medium base body 3 (such as a medium shell and the like) through bolts 4; the lower sleeve 2 is inserted into the medium, the upper end of the lower sleeve is arranged at the lower end of the connecting sleeve 1, and the lower sleeve is clamped between the connecting sleeve 1 and the medium matrix 3 through a connecting flange 12.

In this embodiment, a seal ring 5 mounted to the connection sleeve 1 is provided between the connection sleeve 1 and the lower sleeve 2.

In this embodiment, the connecting flange 12 is provided with a plurality of threaded holes 13.

In this embodiment, the upper end of the joint sleeve 1 has a small-diameter mounting portion 11.

When the connecting device is installed, the lower sleeve is installed in the medium cavity, the connecting end is located outside the medium cavity, the connecting sleeve is installed on the medium base body, the connecting sleeve and the medium base body are fixed together through the bolts, and the lower connecting pipe is tightly extruded and fixed through the extrusion of the connecting flange and the medium base body during connection, so that the installation of the sleeve is realized.

Example two:

according to the first embodiment, in this embodiment, the connecting flange 12 is provided with a mounting groove 14, the lower casing 2 has a connecting end 21, the connecting end 21 is embedded into the mounting groove 14, and the sealing ring 5 is located in the mounting groove 14.

In this embodiment, the connecting end 21 is provided with a plurality of positioning bumps 22 arranged in a circumferential array, and the mounting groove 14 is provided with a plurality of positioning grooves 15 matching with the positioning bumps 22.

In some embodiments, the ends of the locating tabs 22 have a chamfer to facilitate location.

Preferably, the mounting groove 14 is opened with a seal ring groove 16, and the depth of the seal ring groove 16 is smaller than the cross-sectional diameter of the seal ring 5.

Compared with the first embodiment, the first embodiment is provided with the positioning of the connecting sleeve and the lower pipe sleeve and the installation of the sealing ring, and the rest structures and the use modes are the same; through the convex block and the positioning groove, the positioning of the connecting sleeve and the lower sleeve is more convenient, and the installation is convenient.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A thermowell, characterized by: comprises that

The upper end of the connecting sleeve (1) is connected with the thermocouple junction box, the lower end of the connecting sleeve is provided with a connecting flange (12), and the connecting flange (12) is connected with the medium base body through bolts; and

and the lower sleeve (2) is inserted into the medium, the upper end of the lower sleeve is installed at the lower end of the connecting sleeve (1), and the lower sleeve is clamped between the connecting sleeve (1) and the medium matrix through a connecting flange (12).

2. The thermowell of claim 1, wherein: and a sealing ring (5) arranged on the connecting sleeve (1) is arranged between the connecting sleeve (1) and the lower sleeve (2).

3. The thermowell of claim 2, wherein: the connecting flange (12) is provided with a mounting groove (14), the lower sleeve (2) is provided with a connecting end (21), the connecting end (21) is embedded into the mounting groove (14), and the sealing ring (5) is positioned in the mounting groove (14).

4. The thermowell of claim 3, wherein: the connecting end (21) is provided with a plurality of positioning lugs (22) which are arranged in a circumferential array, and a plurality of positioning grooves (15) matched with the positioning lugs (22) are formed in the mounting groove (14).

5. The thermowell of claim 4, wherein: the end of the positioning lug (22) is provided with a slope for facilitating positioning.

6. The thermowell of claim 3, wherein: the mounting groove (14) is provided with a seal ring groove (16), and the depth of the seal ring groove (16) is smaller than the section diameter of the seal ring (5).

7. The thermowell of claim 2, wherein: the connecting flange (12) is provided with a plurality of threaded holes (13).

8. A thermowell according to any of claims 1-7, wherein: the upper end of the connecting sleeve (1) is provided with a small-diameter mounting part (11).