CN215414092U

CN215414092U - Explosion-proof thermocouple with temperature transmitter

Info

Publication number: CN215414092U
Application number: CN202121864674.8U
Authority: CN
Inventors: 华庆生; 张长森; 赵永鼎; 潘百来; 张忠年; 纪万鼎; 秦友国
Original assignee: Xinguo Group Co ltd
Current assignee: Xinguo Group Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-01-04
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses an explosion-proof thermocouple with a temperature transmitter, which comprises: the junction box comprises a cylindrical box body and a box cover which is arranged on the front side of the box body and can seal the junction box, a first threaded hole is formed in the box body, and a second threaded hole corresponding to the first threaded hole is formed in the box cover; the temperature sensing rod comprises a probe and a Glan head, wherein the probe is arranged below the junction box, is used for detecting temperature below the junction box and transmitting the temperature to the junction box, and the Glan head is arranged in the middle of the probe; the explosion-proof plate is arranged in the middle of the temperature sensing rod and is positioned above the Glan head; when a deflagration accident occurs, the explosion-proof plate and the protective junction box avoid impact, so that the junction box is protected, accurate data can be recorded, and the accident can be analyzed and judged conveniently.

Description

Explosion-proof thermocouple with temperature transmitter

Technical Field

The utility model relates to the technical field of thermocouples, in particular to an explosion-proof thermocouple with a temperature transmitter.

Background

The explosion-proof thermocouple is a temperature sensor, is widely applied in a chemical industry automatic control system, can change the temperature parameter of a control object into an electric signal through the temperature sensor, transmits the electric signal to a display, record and regulator, and performs detection, regulation and control on the system. In chemical plants, various flammable and explosive chemical gases and vapors are often associated with production sites, and if a common thermocouple is used, the thermocouple is very unsafe and easily causes environmental gas explosion.

In the prior art, when the thermocouple is used, the main explosion impact damages the junction box of the thermocouple when the thermocouple is in a place where the thermocouple is easy to damage due to the impact of a measuring medium, so that an explosion-proof thermocouple with a temperature transmitter is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an explosion-proof thermocouple with a temperature transmitter, which solves the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an explosion-proof thermocouple with a temperature transmitter, comprising:

the junction box comprises a cylindrical box body and a box cover which is arranged on the front side of the box body and can seal the junction box, a first threaded hole is formed in the box body, and a second threaded hole corresponding to the first threaded hole is formed in the box cover;

the temperature sensing rod comprises a probe and a Glan head, wherein the probe is arranged below the junction box, is used for detecting temperature below the junction box and transmitting the temperature to the junction box, and the Glan head is arranged in the middle of the probe;

and the explosion-proof plate is arranged in the middle of the temperature sensing rod and is positioned above the Glan head.

The box cover and the box body are made of metal stainless steel materials, and the box cover and the box body can be fixedly connected in a threaded mode through a bolt penetrating through the second threaded hole and the first threaded hole.

As a preferable embodiment of the explosion-proof thermocouple with the temperature transmitter, the front side of the box body is provided with three buffer grooves which are distributed in a circular matrix shape and have top opening diameters smaller than the middle opening diameter.

As a preferable embodiment of the explosion-proof thermocouple with the temperature transmitter, the junction box further comprises a buffer mechanism arranged in the buffer slot, and the buffer mechanism comprises a first spring and a buffer column which is arranged on the upper part of the first spring and can move up and down in the buffer slot.

As a preferable embodiment of the explosion-proof thermocouple with the temperature transmitter, the explosion-proof plate comprises symmetrically arranged plate bodies, a second spring arranged between the two plate bodies and a rubber seal arranged on the outer side of the plate bodies.

The first spring is arranged on the first base plate, the second spring is arranged on the second base plate, and the first spring is arranged on the second base plate.

Compared with the prior art, the utility model has the following beneficial effects: when a deflagration accident occurs, the explosion-proof plate and the protective junction box avoid impact, so that the junction box is protected, accurate data can be recorded, and the accident can be analyzed and judged conveniently; the explosion-proof plate comprises plate bodies which are symmetrically arranged, a spring II arranged between the two plate bodies and rubber arranged on the outer sides of the plate bodies, and the kinetic energy absorption mechanism is added to the explosion-proof plate by arranging the spring I, so that the explosion-proof plate can better play a role in protecting multiple purposes; the second springs are distributed in an annular matrix, and the impact force can be absorbed by the second springs at multiple angles.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

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

FIG. 2 is an expanded view of the present invention;

FIG. 3 is a view of the structure of the explosion-proof panel of the present invention;

fig. 4 is a partial enlarged view of the present invention.

In the figure: 100. the temperature sensing device comprises a junction box, 110, a box body, 110a, a first threaded hole, 110b, a buffer groove, 120, a box cover, 120a, a second threaded hole, 130, a buffer mechanism, 130a, a first spring, 130b, a buffer column, 200, a temperature sensing rod, 210, a probe, 220, a gland head, 300, an explosion-proof plate, 310, a plate body, 320, a second spring, 330 and a rubber seal.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

The utility model provides an explosion-proof thermocouple with a temperature transmitter, which can greatly improve the working stability of the thermocouple and improve the use safety of the device.

Referring to fig. 1 to 4, which illustrate schematic structural views of an embodiment of an explosion-proof thermocouple with a temperature transmitter according to the present invention, referring to fig. 1 to 4, a main body of the explosion-proof thermocouple with a temperature transmitter according to the present embodiment includes a terminal box 100, a temperature sensing rod 200, and an explosion-proof plate 300.

The junction box 100 is used for receiving data information of the temperature sensing rod 200 and connecting and transmitting the data information with external equipment, specifically, the junction box 100 comprises a cylindrical box body 110 and a box cover 120 which is arranged on the front side of the box body 110 and can seal the junction box 100, a first threaded hole 110a is formed in the box body 110, and a second threaded hole 120a corresponding to the first threaded hole 110a is formed in the box cover 120, so that the junction box 100 can be used by connecting the junction box with temperature detection equipment (such as a computer) when in use, preferably, the box cover 120 and the box body 110 are made of metal stainless steel, and the box cover 120 and the box body 110 can be fixedly screwed with the box body 110 by using bolts to penetrate through the second threaded hole 120a and the first threaded hole 110a, so that the structural resistance strength of the device is increased, the device is prevented from being damaged, and meanwhile, the junction box 100 is convenient to overhaul;

the temperature sensing rod 200 is used for detecting temperature, specifically, the temperature sensing rod 200 includes a probe 210 which is arranged below the junction box 100 and below the junction box 100 for detecting temperature and transmitting the temperature to the junction box 100, and a glan head 220 arranged in the middle of the probe 210, and the temperature sensing rod 200 is a common temperature sensing rod 200 structure of a common thermocouple, and is composed of a thermode, an insulating tube and a protection tube assembly, when in use, the thermode collects temperature information and outputs the temperature information through the junction box 100;

explosion-proof board 300 is used for protecting terminal box 100, and is concrete, explosion-proof board 300 sets up at the middle part of temperature-sensing rod 200, and explosion-proof board 300 is located glan head 220's top, during the use, installs the device well through glan head 220, and when the detonation accident appears, explosion-proof board 300 and protection terminal box 100 avoid strikeing, and then play the effect of protection terminal box 100, are favorable to the accurate data of record, carry out the analysis and judgement of accident in the time of the convenience.

The front side of the box body 110 is provided with three buffer grooves 110b which are distributed in a circular matrix and have top opening diameters smaller than the middle opening diameter; the junction box 100 further comprises a buffer mechanism 130 arranged in the buffer groove 110b, the buffer mechanism 130 comprises a first spring 130a and a buffer column 130b which is arranged at the upper part of the first spring 130a and can move up and down in the buffer groove 110b, when the box cover 120 receives impact force such as explosion, the buffer rod is extruded by the box cover 120, kinetic energy is absorbed by the first spring 130a, and the junction box 100 is further protected; the explosion-proof plate 300 comprises symmetrically arranged plate bodies 310, a second spring 320 arranged between the two plate bodies 310 and a rubber seal 330 arranged on the outer side of the plate bodies 310, and a kinetic energy absorption mechanism is added to the explosion-proof plate 300 through the arrangement of the first spring 130a, so that the explosion-proof plate 300 can better play a role in protecting multiple purposes; the number of the second springs 320 is multiple, and the second springs 320 are distributed in an annular matrix, so that the impact force can be absorbed at multiple angles.

While there have been shown and described what are at present considered the fundamental principles and essential features of the utility model and its advantages, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An explosion-proof thermocouple with a temperature transmitter is characterized by comprising:

the terminal box (100) comprises a cylindrical box body (110) and a box cover (120) which is arranged on the front side of the box body (110) and can close the terminal box (100), a first threaded hole (110 a) is formed in the box body (110), and a second threaded hole (120 a) corresponding to the first threaded hole (110 a) is formed in the box cover (120);

the temperature sensing rod (200) comprises a probe (210) and a Glan head (220), wherein the probe (210) is arranged below the junction box (100), is used for detecting temperature below the junction box (100) and transmitting the temperature to the junction box (100), and the Glan head (220) is arranged in the middle of the probe (210);

the temperature sensing rod comprises an explosion-proof plate (300), wherein the explosion-proof plate (300) is arranged in the middle of the temperature sensing rod (200), and the explosion-proof plate (300) is positioned above the Glan head (220).

2. The explosion-proof thermocouple with the temperature transmitter as claimed in claim 1, wherein the box cover (120) and the box body (110) are made of metal stainless steel, and the box cover (120) and the box body (110) can fix and screw the box cover (120) and the box body (110) by using bolts to pass through the second threaded hole (120 a) and the first threaded hole (110 a).

3. The explosion-proof thermocouple with the temperature transmitter as claimed in claim 2, characterized in that the front side of the box body (110) is provided with three buffer grooves (110 b) distributed in a circular matrix with the diameter of the top opening smaller than that of the middle opening.

4. The explosion-proof thermocouple with the temperature transmitter as recited in claim 3, characterized in that the junction box (100) further comprises a buffer mechanism (130) disposed in the buffer slot (110 b), and the buffer mechanism (130) comprises a first spring (130 a) and a buffer column (130 b) disposed on the upper portion of the first spring (130 a) and capable of moving up and down in the buffer slot (110 b).

5. The explosion-proof thermocouple with the temperature transmitter as claimed in claim 4, characterized in that the explosion-proof plate (300) comprises symmetrically arranged plates (310), a second spring (320) arranged between the two plates (310) and a rubber seal (330) arranged outside the plates (310).

6. The explosion-proof thermocouple with the temperature transmitter as claimed in claim 5, characterized in that the number of the second spring (320) is plural, and the second spring (320) is distributed in a ring matrix.