Thermocouple and collector connecting device and installation method

Abstract

The invention relates to a thermocouple and collector connecting device and an installation method, the thermocouple and collector connecting device comprises an upper section metal tube, a lower section metal tube, a gasket, a connector female seat, a thermocouple, a plug and a hoop, the detection end of the thermocouple is inserted into the lower section metal tube, the gasket is arranged between the thermocouple and the lower section metal tube, the other end of the thermocouple is fixedly connected with the plug, and the connector female seat is fixedly connected with the hoop. The plug is inserted into the connector female seat, the connector female seat is arranged in one end of the upper-section metal tube, the other end of the upper-section metal tube is connected with the collector, and one end, provided with the connector female seat, of the upper-section metal tube is connected with one end, close to the thermocouple, of the lower-section metal tube through the hoop; the thermocouple connector protected in the metal tube can be prevented from being affected and damaged by high-temperature and high-pressure fluid to be tested, connection is reliable, repeated mounting and dismounting are convenient, the anti-interference capability is convenient to improve, and the cost is low.

Description

Technical Field

[0001] The invention relates to the technical field of coke oven baking, and in particular to a connecting device and an installation method for a thermocouple and a collector. Background Art

[0002] Coke oven baking is an important and complex process for transitioning coke ovens from construction to production. The quality of baking has a crucial impact on the life of the coke oven. The key to baking is to require that all parts of the coke oven be heated up evenly according to the plan and proportion, and then expand evenly. Therefore, a large number of temperature sensors need to be installed during the baking of the coke oven.

[0003] Take a 70-hole 7.65m coke oven as an example. About 300 thermocouples need to be installed in the coke oven top area for temperature monitoring. These thermocouples need to be installed before the oven is baked and removed before the coke oven switches to normal heating. Under normal circumstances, the temperature rise period of a coke oven from ignition to normal heating is about 50 to 80 days. In other words, in order to measure the temperature during the 50 to 80 days of oven baking, about 300 thermocouples need to be installed and removed.

[0004] At present, various types of temperature transmitters are still generally connected to thermocouple sensors using compensation wire connection methods. When using the compensation wire connection method for installation and removal, it is necessary to go through the processes of bridge layout, wiring, wiring, debugging, etc. Due to the construction of the coke oven top during the baking process, the lack of rigor in the coke oven baking process, and the urgency of time during removal, the used compensation wires are usually burned, cut, and damaged and cannot be reused.

[0005] At the same time, due to the excessive laying of compensation wires and the lack of effective anti-interference measures, they are often damaged during the baking process or interfered by various electromagnetic signals during the construction process. Moreover, when compensation wires are used for connection during the baking process, it is usually difficult to achieve full coverage of the compensation wires, resulting in large errors in the temperature collected by the baking furnace temperature measurement system. Summary of the invention

[0006] The present invention provides a connection device and installation method for a thermocouple and a collector, which can prevent a thermocouple connector protected in a metal tube from being affected and damaged by a high-temperature and high-pressure fluid to be measured, has reliable connection, is convenient for repeated installation and disassembly, is convenient for improving anti-interference ability, and has low cost.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A connection device between a thermocouple and a collector comprises an upper metal tube, a lower metal tube, a gasket, a connector socket, a thermocouple, a plug and a clamp, wherein the detection end of the thermocouple penetrates and is inserted into the lower metal tube, a gasket is arranged between the thermocouple and the lower metal tube, the other end of the thermocouple is fixedly connected to the plug, the plug is inserted into the connector socket, the connector socket is arranged in one end of the upper metal tube, the other end of the upper metal tube is connected to the collector, and the end of the upper metal tube provided with the connector socket is connected to the end of the lower metal tube close to the thermocouple through a clamp.

[0009] Furthermore, the upper metal tube includes a base and a column, the column is a hollow structure, one end of the column has an external thread matching the collector, the middle has an internal thread, the other end is connected to the base, the end with the base is connected to the connector socket, and the outside of the column part with the internal thread is provided with a vertical clamping surface.

[0010] Furthermore, the lower section metal tube includes a base and a column, the column is a hollow structure, one end of the column is provided with an internal thread, and the base is arranged at the other end, the outside of the column part with the internal thread is provided with a vertical clamping surface, the end of the lower section metal tube with the base is connected to the end of the upper section metal tube with the base, the end of the lower section metal tube with the base is inserted with a gasket and a thermocouple in sequence, and the base of the lower section metal tube is the same size as the base of the upper section metal tube.

[0011] Furthermore, it also includes a thermocouple protection tube, the thermocouple is inserted into the thermocouple protection tube, the top of the thermocouple protection tube is provided with an outer edge, the bottom is provided with a tube body, the outside of the tube body is provided with an external thread matching the internal thread of the lower metal tube, and the gasket is arranged between the outer edge of the thermocouple protection tube and the lower metal tube.

[0012] Furthermore, the female connector has external threads and one end is provided with a terminal, the terminal is connected to the input signal line of the collector, and the other end of the female connector is provided with a jack matching the plug.

[0013] Furthermore, the outer wall of the thermocouple is provided with an external thread matching the lower section of the metal tube.

[0014] A method for installing a connection device between a thermocouple and a collector, wherein an upper metal tube, a lower metal tube and a gasket on which a connector female seat of a thermocouple is installed protect a plug connected to the thermocouple therein, a thermocouple protection tube is inserted into the lower metal tube, a gasket is arranged between the thermocouple protection tube or the thermocouple body and the lower metal tube, when the thermocouple protection tube is used, the thermocouple is inserted into the thermocouple protection tube, when the upper metal tube and the lower metal tube are butt-jointed, the plug connected to the thermocouple is connected to the connector female seat installed in the upper metal tube, the connector female seat is connected to the collector through a wire, the wire runs through the upper metal tube, and the two metal tubes are connected and fixed by a clamp.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] Compared with the problems of using compensation wires for connection, such as large workload, high cost, long time, large amount of discarded wires and large errors, the present invention has the advantages of reliable connection, easy repeated installation and disassembly, easy to improve anti-interference ability, low cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the device of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the upper metal tube of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the lower section metal tube of the present invention.

[0020] Figure 4 It is a connection diagram of the thermocouple and the plug of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the thermocouple protection tube of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the connector female socket of the present invention.

[0023] Figure 7 It is a schematic structural diagram of the clamp described in the present invention.

[0024] In the figure: 1. Upper metal tube 2. Lower metal tube 3. Thermocouple protection tube 4. Gasket 5. Connector socket 6. Thermocouple 7. Plug 8. Clamp 9. Base 10. Vertical clamping surface 11. Outer edge 12. Terminal 13. Collector DETAILED DESCRIPTION

[0025] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings:

[0026] See Figure 1 , is a schematic diagram of the structure of the present invention. A connecting device for a thermocouple and a collector of the present invention comprises an upper metal tube 1, a lower metal tube 2, a thermocouple protection tube 3, a gasket 4, a connector female seat 5, a thermocouple 6, a plug 7 and a clamp 8;

[0027] See Figure 2 The upper metal tube 1 includes a base 9 and a column. The column is a hollow structure. One end of the column has an external thread matching the collector 13, the middle has an internal thread, and the other end is connected to the base 9. A vertical clamping surface 10 is provided on the outside of the column part with the internal thread.

[0028] See Figure 3 The lower metal tube 2 includes a base 9 and a column. The column is a hollow structure. An internal thread is provided at one end of the column, and the base 9 is arranged at the other end. A vertical clamping surface 10 is provided on the outside of the column part with the internal thread. The base 9 of the lower metal tube 2 is the same size as the base 9 of the upper metal tube 1.

[0029] See Figure 5 The top of the thermocouple protection tube 3 is provided with an outer edge 11, and the bottom is provided with a tube body. The outside of the tube body is provided with an external thread matching the internal thread of the lower metal tube 2.

[0030] See Figure 6 The connector female socket 5 has an external thread and a terminal 12 is provided at one end, and a socket matching the plug 7 is provided at the other end of the connector female socket 5.

[0031] The tube body of the thermocouple protection tube 3 is inserted through one end of the lower metal tube 2 column with a base 9, a gasket 4 is arranged between the thermocouple protection tube 3 and the lower metal tube 2, the tube body of the thermocouple protection tube 3 is matched with the internal thread of the lower metal tube 2 column through an external thread, and the detection end of the thermocouple 6 is inserted into the thermocouple protection tube 3. Figure 4 The other end of the thermocouple 6 is fixedly connected to the plug 7, and the plug 7 is exposed at the outer edge 11 of the thermocouple protection tube 3. The plug 7 is inserted into the jack of the connector female seat 5. The connector female seat 5 inserts one end with the terminal 12 into the end with the base 9 of the upper metal tube 1, and is matched with the internal thread of the upper metal tube 1 through the external thread. The column external thread of the upper metal tube 1 is matched with the collector 13. Figure 7 The upper metal tube 1 is provided with a connector socket 5 and one end with a base 9 is fixedly connected to the end of the lower metal tube 2 close to the thermocouple 6 and with a base 9 through a clamp 8. The signal input end of the collector 13 is connected to the terminal 12 of the connector socket 5 through a wire, and the wire runs through the upper metal tube 1.

[0032] The upper metal tube 1, the lower metal tube 2, the thermocouple protection tube 3 and the gasket 4 of the connector socket 5 equipped with the thermocouple 6 protect the universal thermocouple 6 with the plug 7 therein. When the upper metal tube 1 and the lower metal tube 2 are butt-jointed, the thermocouple 6 is just connected to the connector socket 5 installed in the upper metal tube 1, and then the two metal tubes are connected and fixed by the clamp 8.

[0033] The following examples are implemented on the premise of the technical solution of the present invention, and provide detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0034] [Example 1]

[0035] Thermocouple protection tube 3 and armored thermocouple 6 are used for the installation of thermocouple on the top of coke oven: insert one end of the connector female seat 5 of the thermocouple 6 with the terminal 12 into the end of the upper metal tube 1 with the base 9, match the connector female seat 5 of the thermocouple 6 with the internal thread of the upper metal tube 1 through the external thread to install, install the upper metal tube with the connector female seat 5 installed on the temperature transmitter or temperature collector 13 through the external thread, insert the thermocouple protection tube 3 into the lower metal tube 2, and set a gasket 4 between the outer edge 11 of the thermocouple protection tube 3 and the lower metal tube 2, insert the thermocouple 6 into the thermocouple protection tube 3, dock the installed upper metal tube 1 and the lower metal tube 2, and insert the plug 7 of the thermocouple 6 into the connector female seat 5 for connection, use the clamp 8 to fix the upper metal tube 1 and the lower metal tube 2, and insert the installed whole device into the thermocouple base for the coke oven top oven.

[0036] [Example 2]

[0037] Without using the thermocouple protection tube 3, the thermocouple 6 with an external mounting thread on the support is used for the installation of the preheating couple on the top of the coke oven: insert the end of the connector female seat 5 of the thermocouple 6 with the terminal 12 into the end of the upper metal tube 1 with the base 9, match the connector female seat 5 of the thermocouple 6 with the internal thread of the upper metal tube 1 through the external thread to install, install the upper metal tube with the connector female seat 5 on the temperature transmitter or temperature collector 13 through the external thread, set the gasket 4 at the bottom of the lower metal tube 2, insert the thermocouple 6 with the external mounting thread into the gasket 4 and the lower metal tube 2, dock the installed upper metal tube 1 and the lower metal tube 2, and insert the plug 7 of the thermocouple 6 into the connector female seat 5 for connection, use the clamp 8 to fix the upper metal tube 1 and the lower metal tube 2, and insert the installed overall device into the thermocouple base for the coke oven top oven.

Claims

1. A connection device between a thermocouple and a collector, characterized in that: It includes an upper metal tube, a lower metal tube, a gasket, a connector socket, a thermocouple, a plug and a clamp. The thermocouple detection end penetrates and is inserted into the lower metal tube. A gasket is arranged between the thermocouple and the lower metal tube. The other end of the thermocouple is fixedly connected to the plug. The plug is inserted into the connector socket. The connector socket is arranged in one end of the upper metal tube. The other end of the upper metal tube is connected to a collector. One end of the upper metal tube provided with the connector socket is connected to one end of the lower metal tube close to the thermocouple through a clamp.

2. A connection device between a thermocouple and a collector according to claim 1, characterized in that: The upper metal tube includes a base and a column. The column is a hollow structure. One end of the column has an external thread matching the collector, the middle has an internal thread, the other end is connected to the base, and the end with the base is connected to the connector socket. The outside of the column part with the internal thread is provided with a vertical clamping surface.

3. A connection device between a thermocouple and a collector according to claim 2, characterized in that: The lower section metal tube includes a base and a column, the column is a hollow structure, one end of the column is provided with an internal thread, and the base is arranged at the other end, the outside of the column part with the internal thread is provided with a vertical clamping surface, the end of the lower section metal tube with the base is connected to the end of the upper section metal tube with the base, the end of the lower section metal tube with the base is inserted with a gasket and a thermocouple in sequence, and the base of the lower section metal tube is the same size as the base of the upper section metal tube.

4. A connection device between a thermocouple and a collector according to claim 3, characterized in that: It also includes a thermocouple protection tube, the thermocouple is inserted into the thermocouple protection tube, the top of the thermocouple protection tube is provided with an outer edge, the bottom is provided with a tube body, the outside of the tube body is provided with an external thread matching the internal thread of the lower metal tube, and the gasket is arranged between the outer edge of the thermocouple protection tube and the lower metal tube.

5. The device for connecting a thermocouple to a collector according to claim 1, characterized in that: The female connector has external threads and one end is provided with a terminal, the terminal is connected to the input signal line of the collector, and the other end of the female connector is provided with a socket matching the plug.

6. The device for connecting a thermocouple to a collector according to claim 3, characterized in that: The outer wall of the thermocouple is provided with an external thread matching the lower section metal pipe.

7. A method for installing a connection device between a thermocouple and a collector according to any one of claims 1 to 6, characterized in that: The upper metal tube, lower metal tube and gasket of the connector female seat with a thermocouple installed protect the plug connected to the thermocouple therein, the thermocouple protection tube is inserted into the lower metal tube, the gasket is arranged between the thermocouple protection tube or the thermocouple body and the lower metal tube, when the thermocouple protection tube is used, the thermocouple is inserted into the thermocouple protection tube, when the upper metal tube and the lower metal tube are butt-jointed, the plug connected to the thermocouple is connected to the connector female seat installed in the upper metal tube, the connector female seat is connected to the collector through a wire, the wire runs through the upper metal tube, and the two metal tubes are connected and fixed by a clamp.

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