CN216559407U

CN216559407U - Single multipoint thermocouple of chemical reactor

Info

Publication number: CN216559407U
Application number: CN202123343811.6U
Authority: CN
Inventors: 赵旭升
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-05-17
Anticipated expiration: 2031-12-28

Abstract

The utility model discloses a single multipoint thermocouple of a chemical reactor, which belongs to the technical field of thermocouples and comprises an explosion-proof multipoint junction box and a shell connector arranged at the end part of the explosion-proof multipoint junction box, wherein the explosion-proof multipoint junction box is connected with a compensation lead protection tube through the shell connector; the temperature measurement device can realize simultaneous temperature measurement of multiple points, is simple to install, can improve the dynamic measurement effect of the thermocouple, and improves the measurement speed and accuracy.

Description

Single multipoint thermocouple of chemical reactor

Technical Field

The utility model relates to the technical field of thermocouples, in particular to a single multipoint thermocouple of a chemical reactor.

Background

The thermocouple is a detection element in an automatic process control system and is an automatic control instrument. The output signal of the thermocouple is direct current voltage, is converted into a digital signal through an A/D converter, and is converted into an actual temperature value through software checking. The thermocouple is widely applied in petrochemical industry, metallurgy and electric power industry. In industrial production, if the temperature is not controlled properly, many production processes cannot be performed, and therefore, the temperature inside the blast furnace or the reactor must be strictly controlled.

However, in the existing production process, the temperature of a plurality of points is often required to be measured, and the measurement can be completed only by matching a plurality of common thermocouples, so that a large error is caused, a plurality of positions needing temperature measurement are narrow on the site, the conventional thermocouples cannot be bent, the insertion depth cannot meet the requirement, and the use limitation is very large.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide a single multipoint thermocouple of a chemical reactor, which can realize multipoint simultaneous temperature measurement and is simple to install, the dynamic measurement effect of the thermocouple can be improved, and the measurement speed and accuracy can be improved.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A single multipoint thermocouple of a chemical reactor comprises an explosion-proof multipoint junction box and a shell connector arranged at the end part of the explosion-proof multipoint junction box, wherein the explosion-proof multipoint junction box is connected with a compensation wire protection tube through the shell connector, one end of the compensation wire protection tube, which is far away from the shell connector, is in threaded connection with a cold end protection tube, one end of the cold end protection tube, which is far away from the compensation wire protection tube, is fixedly welded with a protection tube lower connector, the end part of the protection tube lower connector is connected with an armor protection tube, a movable cutting sleeve is arranged on the armor protection tube, an armor element is connected in the armor protection tube in a penetrating way, a compensation wire is connected in the cold end protection tube in a penetrating way, the compensation wire is electrically connected with the armor element through a cold end, and the other end of the compensation wire passes through the compensation wire protection tube to be electrically connected with the explosion-proof multipoint junction box, and a plugging mechanism for insulating and sealing is arranged in the cold end protection pipe.

Further, the compensation wire protection tube is made of stainless steel corrugated hose material, and the outer surface of the joint of the cold end protection tube is wrapped by a heat-shrinkable protection tube.

Furthermore, the armor elements are thermocouples which are at least provided with three pieces and have different lengths.

Furthermore, the number of the cold ends is consistent with that of the thermocouples and corresponds to one another.

Furthermore, the armor protection pipe is connected with the lower joint of the protection pipe through a binding nail welding structure, and the armor protection pipe is made of stainless steel disc pipe materials.

Furthermore, the plugging mechanism comprises epoxy resin and magnesium oxide which are filled in the cold end protection tube, wherein the magnesium oxide is used for providing insulating property, and the epoxy resin is used for plugging a filling gap.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) this scheme can be with many ordinary thermocouples polymerization one-tenth multiple spot thermocouple, can reduce temperature measurement error by a wide margin, simultaneously through the armor protection tube that is provided with the stainless steel coil pipe material, can be as required crooked and spiral, the diameter is less simultaneously, is applicable to various environments, especially the environment that conventional thermocouple can't be installed, and then can insert deeply and reach required degree of depth, and the use restriction is less, and it is more convenient effective to use.

(2) This scheme is provided with pyrocondensation protection tube, epoxy, magnesium oxide, simultaneously the armor protection tube with be connected through tying up the nail welding structure between the protection tube lower clutch for it is better to connect the leakproofness between each structure, and insulating nature is better between electric connection's the electronic component simultaneously, and then the safety in utilization is higher, and the error is less relatively.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the cold end protection tube of the present invention;

fig. 3 is a schematic view of the internal structure of the armored protective tube of the present invention.

The reference numbers in the figures illustrate:

1. an explosion-proof multi-point junction box; 2. a housing connector; 3. a compensation lead protection tube; 4. a thermal shrinkage protection tube; 5. a cold end protection tube; 6. protecting the lower joint of the pipe; 7. a movable ferrule; 8. an epoxy resin; 9. a compensation wire; 10. a cold end; 11. magnesium oxide; 12. an armouring element; 13. an armor protection pipe.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Example 1:

referring to fig. 1-3, a single multipoint thermocouple for a chemical reactor comprises an explosion-proof multipoint junction box 1 and a housing connector 2 arranged at the end of the explosion-proof multipoint junction box 1, the explosion-proof multipoint junction box 1 is connected with a compensation wire protection tube 3 through the housing connector 2, one end of the compensation wire protection tube 3 away from the housing connector 2 is in threaded connection with a cold end protection tube 5, one end of the cold end protection tube 5 away from the compensation wire protection tube 3 is fixedly welded with a protection tube lower connector 6, the end of the protection tube lower connector 6 is connected with an armor protection tube 13, the armor protection tube 13 is provided with a movable ferrule 7 for connection with an equipment site, and the actual insertion depth of the device can be controlled, an armor element 12 is penetrated inside the armor protection tube 13, a compensation wire 9 is penetrated inside the cold end protection tube 5, wherein the compensation wire 9 is electrically connected with the armor element 12 through a cold end 10, cold junction 10 has sealed and fixed action for connect more stably between the electronic component, and compensation wire 9 other end passes compensation wire protection tube 3 and explosion-proof multiple spot terminal box 1 electric connection, and cold junction protection tube 5 is inside to be provided with the shutoff mechanism that is used for insulating seal.

Referring to fig. 1, wherein, make for the stainless steel corrugated hose material through setting up compensation wire protection tube 3, usable stainless steel corrugated hose's characteristic makes it more convenient to buckle, and has heat shrinkage protection tube 4 with 5 junction surface parcels of cold junction protection tube, can guarantee connection leakproofness and insulating nature, avoids external factor to influence the device's measurement structure.

Referring to fig. 3, the armor element 12 is a thermocouple, and is provided with three at least, and the length differs, can realize the multiple spot simultaneous temperature measurement to the inside of equipment, and then can promote the dynamic measurement effect of thermocouple, improves measuring speed and accuracy.

Referring to fig. 2, the number of cold ends 10 corresponds to the number of thermocouples, and each thermocouple is conveniently connected to a corresponding compensation wire 9 through the cold end 10.

Referring to fig. 2, the armored protection tube 13 and the protection tube lower connector 6 are connected through the binding nail welding structure, the gas pressure inside the measuring device can be prevented from leaking by utilizing the characteristics of low temperature and high strength of the welding structure mode, the armored protection tube 13 is made of stainless steel coil pipe materials, and the characteristics of the stainless steel coil pipe can be utilized, so that when the armored protection tube 13 is inserted into the device, the armored protection tube is applicable to various environments, particularly environments where conventional thermocouples cannot be installed, and is inserted deeply and coiled and can be bent.

Referring to fig. 2, shutoff mechanism is including filling in the inside epoxy 8 and the magnesium oxide 11 of cold junction protection tube 5, when making, can guarantee the insulating nature of the device at cold junction protection tube 5 inside at first pouring into the magnesium oxide 11 powder, later wholly inject into the 8 glue solutions of epoxy again, further guarantee leakproofness and insulating nature for the whole leakproofness of the device is better, reduces the interference of external environment to the device, improves and measures the precision.

When in use: can insert temperature measuring equipment with armor protection pipe 13 inside, it is fixed mutually with the equipment connector through activity cutting ferrule 7 simultaneously, and adjust the depth of insertion of armor protection pipe 13, while explosion-proof multiple spot terminal box 1 joinable data receiving equipment, through the inside thermocouple that is provided with many different lengths in armor protection pipe 13, and then can measure the temperature of the inside different positions of temperature measuring equipment simultaneously, make the temperature measurement error reduce by a wide margin, can promote the dynamic measurement effect of thermocouple, improve measuring speed and the degree of accuracy, it can make the installation more convenient to be provided with compensation wire protection pipe 3 simultaneously, the restriction of environmental position is less.

The above are merely preferred embodiments of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a single multiple spot thermocouple of chemical reactor, includes explosion-proof multiple spot terminal box (1) and sets up in shell connection head (2) of explosion-proof multiple spot terminal box (1) tip, its characterized in that: explosion-proof multiple spot terminal box (1) passes through shell connector (2) is connected with compensation wire protection tube (3), compensation wire protection tube (3) are kept away from shell connector (2) one end threaded connection has cold junction protection tube (5), cold junction protection tube (5) are kept away from the fixed welding of compensation wire protection tube (3) one end has protection tube lower clutch (6), protection tube lower clutch (6) end connection has armor protection tube (13), be provided with movable cutting ferrule (7) on armor protection tube (13), the inside cross-under of armor protection tube (13) has armor component (12), the inside cross-under of cold junction protection tube (5) has compensation wire (9), compensation wire (9) with through being provided with cold junction (10) electric connection between armor component (12), compensation wire (9) other end passes compensation wire protection tube (3) with explosion-proof multiple spot terminal box (1) electric connection And the cold end protection tube (5) is internally provided with a plugging mechanism for insulation sealing.

2. The single multipoint thermocouple of the chemical reactor according to claim 1, wherein: the compensation lead protection pipe (3) is made of stainless steel corrugated hose materials, and the outer surface of the joint of the cold end protection pipe (5) is wrapped by the thermal shrinkage protection pipe (4).

3. The single multipoint thermocouple of the chemical reactor according to claim 1, wherein: the armor elements (12) are thermocouples which are at least provided with three pieces and have different lengths.

4. The single multipoint thermocouple of the chemical reactor according to claim 1, wherein: the number of the cold ends (10) is consistent with that of the thermocouples and corresponds to one another.

5. The single multipoint thermocouple of the chemical reactor according to claim 1, wherein: the armor protection pipe (13) is connected with the protection pipe lower joint (6) through a binding nail welding structure, and the armor protection pipe (13) is made of stainless steel disc pipe materials.

6. The single multipoint thermocouple of the chemical reactor according to claim 1, wherein: the plugging mechanism comprises epoxy resin (8) and magnesium oxide (11) which are filled in the cold end protection tube (5), wherein the magnesium oxide (11) is used for providing insulating property, and the epoxy resin (8) is used for plugging a filling gap.