TWM583936U - Ultra-high temperature resistant thermocouple structure - Google Patents

Abstract

The creation includes at least: a thermocouple for generating a micro voltage generated by a thermal temperature difference, and a super heat-resistant guide member having an ultra-high temperature resistance (ie, 650 ° C or higher) and heat conduction to the thermocouple; wherein: the super heat-resistant guide member The utility model comprises at least a cauterization rod portion for flame combustion, a base portion extending downward from the cauterization rod portion, a hollow concave chamber formed from the base end surface, and at least one or more connected to a venting hole at the chamber; further, the surface of the base is soldered, or snapped, or screwed to the thermocouple to ensure that the surface of the super heat-resistant guide is in close contact with The end of the thermocouple is at the end.

Description

Ultra-high temperature resistant thermocouple construction

This creation is about an ultra-high temperature resistant thermocouple; in particular, it relates to an ultra-high temperature resistant thermocouple structure that can be used in furnace fire field applications that are resistant to ultra-high temperatures (ie above 650 °C) and to increase its service life.

According to the conventional thermostat structure, please refer to FIG. 1 , which mainly includes a thermocouple 1 which is at least composed of a heat-resistant metal casing 10 having a hollow concave-shaped space portion 102 and a accommodating through-convex a heat-resistant metal wire 11 at a top edge of the space portion 102 of the heat-resistant metal casing 10, a center wire 12 welded to the other end of the heat-resistant metal wire 11, and a set of near-bottom edges of the heat-resistant metal casing 10. The outer lead wire 13 of the heat-resistant metal wire 11 and the heat-resistant metal shell 10 are made of two different expansion coefficients, and the heat-resistant metal wire 11 is directly welded to the heat-resistant metal casing 10 to form a unitary body. And the weld junction forms a source of power generation of the thermocouple; accordingly, when the fire is directly burned to the weld joint of the heat-resistant metal casing 10 and the heat-resistant metal wire 11 of the thermocouple 1, the same can be At the time point, the heat-resistant metal casing 10 and the heat-resistant metal wire 11 having different expansion coefficients which are located at the welding joint directly generate a micro voltage (or a micro current), and serve as a valve of the solenoid valve group (not shown). Board It is not shown in the control of the supply of gas.

Although the above-mentioned creations can achieve the original purpose of creation, they are highly praised by the industry and the general operators. However, in view of the industry's continuous innovation and breakthrough in research and development and technology, the applicants have made more efforts to study. Improvement, and make it perfect and practical; plus, the creator has responded with numerous updates to the experimental test and the actual use of the consumer, and found that the following problems still need to be further improved: due to general household use The temperature of the furnace fired by the gas stove is about 300 ° C to 600 ° C, so that when the fire is directly burned at the thermocouple, the thermocouple still maintains the normal operation function; however, if the thermocouple is applied In the case of commercial stoves or blast furnaces, the combustion temperature of the stove is often increased to above 650 ° C, so that the ultra-high heat temperature (ie above 650 ° C) is directly burned at the end of the thermocouple. This will cause the thermocouple to be broken by high-temperature combustion for a long time, and it can no longer be used continuously, and its service life is reduced. At the same time, production must be stopped. Then separate maintenance and renovation, and greatly improve its human maintenance downtime and loss of production of the total cost for a big problem.

Therefore, how to develop a thermocouple that can be applied to an ultra-high temperature working field and greatly improve its service life is a technical problem that the industry needs to solve first.

The main content of the ultra-high temperature resistant thermocouple structure of the present invention is to provide a super-heat-resistant guide member which is tightly assembled at one end of the thermocouple, and the one end of the super heat-resistant guide member can be surely connected to the existing The head of the thermocouple At the same time, the ultra-high temperature furnace flame is directly burned at the burning rod portion of the super heat-resistant guide member (ie, the furnace fire is not directly burned to the end of the thermocouple tip), so that the burning rod portion can Absorbing the thermal energy (or calorific value) of the ultra-high furnace and directly transferring heat to the end of the thermocouple through the heat conduction of the base, and causing the thermocouple to generate a micro voltage (or a micro current), thereby opening and closing the thermocouple Whether the valve plate of the solenoid valve group can be effectively controlled by the adsorption operation, so that it can not only greatly improve the ultra-high temperature (ie above 650 ° C), the direct combustion of the fire after the thermocouple, and the quality change or damage The problem that can no longer be used to greatly improve the service life of the thermocouple and the overall cost of maintenance manpower and shutdown production, and also enables the thermocouple to be used in fields with higher operating temperatures. And greatly increase its market share and competitiveness for its progressive effectiveness.

2‧‧‧ thermocouple

20‧‧‧Heat resistant metal casing

201‧‧‧ Space Department

21‧‧‧Heat pipe fittings

22‧‧‧ ring groove

23‧‧‧Heat-resistant metal wire

24‧‧‧Center wire

25‧‧‧Outer wire

26‧‧‧ head end

27‧‧‧Threaded section

3‧‧‧Super heat-resistant guide

30‧‧‧ Burning rod

31‧‧‧ base

32‧‧ ‧ room

33‧‧‧ venting holes

34‧‧‧ internal thread

35‧‧‧ solder joints

37‧‧‧Limited seat

370‧‧‧ external thread

371‧‧‧Positioning holes

38‧‧‧ Spring

4‧‧‧Counter nuts

40‧‧‧Threading Department

Fig. 1 is a perspective view showing the stereoscopic appearance of a thermocouple structure for conventional furnace fire.

Figure 2 is a schematic exploded partial cross-sectional view of the creation.

Figure 3 is a partial cross-sectional view of the three-dimensional combination of Figure 2.

Figure 4 is a schematic cross-sectional view of the second drawing.

Figure 5 is a schematic cross-sectional view showing a combination of the second embodiment of the present invention.

Figure 6 is a schematic cross-sectional view showing a combination of the third embodiment of the present invention.

Figure 7 is a schematic cross-sectional view showing a combination of the fourth embodiment of the present invention.

This creation is about an ultra-high temperature thermocouple construction, see section 2 to 4, which includes at least: a thermocouple 2 having a micro voltage generated by a thermal temperature difference, and an ultra-high thermal temperature (ie, 650 ° C or higher) and conduction to the thermocouple 2 The heat-conductive guide 3; wherein: the thermocouple 2 in the present embodiment is a thermocouple 2 currently commercially available, and its structure and principle are all known in the art, and therefore will not be described herein; The mate 2 is composed of at least a heat-resistant metal casing 20 having a hollow concave-shaped space portion 201, a hollow heat-conducting pipe member 21 for fixing the heat-resistant metal casing 20, and a ring-shaped heat-dissipating pipe member 21 disposed at the heat-conductive pipe member 21 for heat resistance. a ring groove 22 for engaging the metal casing 20, a heat resistant metal wire 23 accommodating through the top edge of the space portion 201 of the heat resistant metal casing 20, and a center wire welded to the other end of the heat resistant metal wire 23. 24, and a set of outer wires 25 disposed at a near bottom end edge of the heat pipe member 21, wherein the heat resistant metal wire 23 and the heat resistant metal casing 20 are made of two materials having different expansion coefficients, and the heat resistant metal wire 23 is made Directly welded to the heat resistant metal casing 20 An integral shape and a welded end portion of the heat resistant metal wire 23 and the heat resistant metal casing 20 form a tip end portion 26, whereby the head end portion 26 is generated as the thermocouple 2 when it is expanded by heat. Where the voltage (or micro current) is generated by the power source; the super heat-resistant guide member 3 includes at least one cauterization rod portion 30 for flame combustion, and a base portion 31 extending downward from the cauterization rod portion 30. A hollow recessed chamber 32 is formed in the inner end of the base portion 31, and at least one venting hole 33 is formed at the end of the chamber 32. The hollow recessed chamber 32 is sleeved and fixed thereto. Thermocouple 2, and the hollow After the inner wall surface of the trap chamber 32 is in close contact with the tip end portion 26 of the thermocouple 2, the outer peripheral side of the base portion 31 which is located at the ring groove 22 of the thermocouple 2 is directly directed toward the inside. The direction of the force is pressed until the base portion 31 is pressed against the ring groove 22 by the force deformation, so that the super heat-resistant guide member 3 can be surely assembled (ie, engaged in a snap-fit manner). The thermocouple 2 is located, and the inner wall surface of the super heat-resistant guide 3 can be ensured to be in close contact with the end portion 26 of the thermocouple 2; and the vent hole 33 is used as the inside of the super heat-resistant guide 3 (ie, the capacity) Room 32) cooling for rapid heat dissipation; and the super heat-resistant guide 3 described above is made of a metal material having thermal conductivity and high temperature resistance, especially nickel-chromium wire, or nickel-chromium alloy, or stainless steel, or white iron alloy. The material is optimal; when in use, the super heat-resistant guide 3 is fixedly coupled to the ring groove 22 of the thermocouple 2, and the inner wall surface of the chamber 32 of the super heat-resistant guide 3 is tightly connected. At the end 26 of the thermocouple 2 (as shown in FIG. 3), the superheat-resistant guide that has been assembled at the thermocouple 2 The burning rod portion 30 of the 3 is protruded and mounted on the blast furnace (not shown) or the flame burning area (not shown) of the commercial stove (not shown); at this time, if the blast furnace or the blast furnace is activated The commercial stove is ignited and burned, so that the temperature of the fire flame that has been located in the flame combustion zone will immediately rush to the ultra-high temperature state above 650 ° C and make the super-fired combustion zone The high temperature (ie, above 650 ° C) furnace will continue to burn directly on the cauterization rod portion 30 of the super heat-resistant guide 3 (but will not directly burn at the end 26 of the thermocouple 2, as shown in Fig. 4). So that the instantaneous temperature and thermal energy of the cauterization rod portion 30 are quickly lifted upward, and the super heat-resistant guide member 3 is self-contained. Under the thermal conduction of the body material, the ultra-high temperature (ie, above 650 ° C) heat energy adsorbed on the cauterization rod portion 30 can be directly reheated to the head of the thermocouple 2 after the heat conduction through the base portion 31. The end portion 26 is such that the head end portion 26 generates a micro voltage (or micro current) and the micro voltage (or micro current) can be surely acted as a valve plate that is coupled to a solenoid valve block (not shown) ( The control is not used to start or close the control, and the opening and closing action of the valve plate of the solenoid valve group is used as a basis for controlling the supply of gas required for the blast furnace or the commercial stove; When the fire is extinguished, there is no fire and the heating of the super heat-resistant guide 3 is continued, so that the outer surface and the inner surface of the super heat-resistant guide 3 which are already at an ultra-high temperature (ie, above 650 ° C) are preferentially respectively The ultra-high thermal temperature (ie, above 650 ° C) absorbed by itself is directly transmitted by heat radiation convection to the flame burning zone of the blast furnace (not shown) or the commercial stove (not shown) (Fig. Where not shown, and conduction is spread in the chamber 32 (and then transmitted through the vent 33) In the external air of the super heat-resistant guide member 3, so that the super heat-resistant guide member 3 can achieve the effect of rapid heat dissipation and cooling; at this time, the end portion 26 of the thermocouple 2 is continuously received from the cooled state. After the thermal energy temperature of the superheat-resistant conductive member 3 is close to the thermal expansion displacement between the heat-resistant metal casing 20 and the heat-resistant metal wire 23, a smaller voltage (or a smaller current) which can be generated cannot be made. The valve plate of the thermocouple 2 is continuously adsorbed and opened (that is, the magnetism of the valve plate of the thermocouple 2 which is driven by a smaller current is much smaller than the spring rebound force of the valve plate which is located at the thermocouple 2 ), to achieve the basis for the actual supply of gas required to block the blast furnace or commercial stove; as a result, it can not only greatly The problem of improving the quality change or thermal expansion caused by the direct combustion of the fire at the high temperature (ie above 650 ° C) to the thermocouple 2 can no longer be used, so as to greatly improve the service life and maintenance manpower of the thermocouple 2 In addition to the overall cost of the shutdown production, the thermocouple 2 can also be used in fields with higher operating temperatures, which greatly increases its market share and competitiveness.

Please refer to FIG. 5 , which is a second embodiment of the present invention. The main change is that the base portion 31 of the original super heat-resistant guide member 3 is buckled by the compression deformation after the sleeve. The bonding manner at the ring groove 22 of the thermocouple 2 is changed such that the base portion 31 of the super heat-resistant conductive member 3 is directly welded to the heat-resistant metal casing 20 (or the head of the thermocouple 2) by soldering (or heat fusion). At the end portion 26) (ie, at least one solder joint 35 is formed between the base portion 31 and the heat-resistant metal casing 20), and the base portion 31 of the super heat-resistant guide member 3 can be welded by the solder joint 35. And it is in close contact with the end portion 26 of the thermocouple 2, so that the head end portion 26 can maintain close contact with the base portion 31 of the super heat-resistant guide member 3, and reuse the super-located in the flame combustion region. The high temperature (ie, above 650 ° C) furnace directly continues to burn at the cauterization rod portion 30 of the super heat-resistant guide member 3 (but does not directly burn at the end portion 26 of the thermocouple 2), so that the cauterization rod portion The ultra-high temperature (ie, above 650 ° C) absorbed by 30 is thermally conducted to the thermocouple 2 through the base 31. At portion 26, so that at the same point in time, the head end portion 26 will have a large temperature difference change to generate a micro voltage (or micro current), which is transmitted as a link to a solenoid valve group (not shown). The valve plate is used for opening and closing control; as for the above-mentioned thermocouple 2 and the super heat-resistant guide 3 and the like, It is described in detail above, so it will not be described here.

Please refer to FIG. 6 , which is a third embodiment of the present invention. The main change is that the base portion 31 of the original super heat-resistant guide member 3 is buckled by the compression deformation after the sleeve. The coupling manner of the ring groove 22 of the thermocouple 2 is changed so that the base portion 31 of the super heat-resistant guide member 3 is directly locked to the heat-conductive tube member 21 of the thermocouple 2 by screwing, in short, the super The inner wall surface of the base portion 31 of the heat-resistant guide member 3 is provided with an internal thread 34 (that is, the internal thread 34 is located at the inner wall surface of the hollow recessed portion 32), and the internal thread 34 is disposed between the caulking rod portion 30. At least one or more venting holes 33 connecting the chamber 32 to the outer side thereof, and a threaded portion 27 on the outer peripheral side of the heat conducting tube member 21 of the thermocouple 2 at the internal thread 34, so that the threaded portion 27 can The threaded portion 40 of the counter-nut 4 and the internal thread 34 of the super-heat-resistant guide 3 are screwed and locked, and the inner top wall of the chamber 32 of the super-heat-resistant guide 3 is firmly connected. Contacting the end portion 26 of the thermocouple 2, using an ultra-high temperature (ie, above 650 ° C) furnace that is already located in the flame combustion zone to directly continue Cauterizing at the cauterization rod portion 30 of the super heat-resistant guide member 3 (but not directly burning at the end portion 26 of the thermocouple 2), so that the super-high temperature (ie, 650 ° C or higher) absorbed by the cauterization rod portion 30 The thermal energy is further thermally conducted to the end 26 of the thermocouple 2 after passing through the base 31, so that at the same time point, the head end portion 26 has a large temperature difference change to generate a micro voltage. (or micro current), and is connected as a valve plate to the solenoid valve group (not shown) for opening and closing control; as described above, the thermocouple 2 and the super heat-resistant guide 3 and the like are The content is described in detail, so it is not described here.

Please refer to FIG. 7 , which is a fourth embodiment of the present invention. The main change is that the base portion 31 of the original super heat-resistant guide member 3 is buckled by the compression deformation after the sleeve. The coupling manner of the ring groove 22 of the thermocouple 2 is changed so that the base portion 31 of the super heat-resistant guide member 3 is directly locked to the limiting seat 37 by screwing, and the thermocouple 2 is sandwiched. Between the super heat-resistant guide member 3 and the limiting seat 37, in short, the base portion 31 end of the super heat-resistant guide member 3 is formed with a hollow recessed chamber 32 facing inward, and is formed on the inner side wall surface of the chamber 32. An internal thread 34 is provided to enable the internal thread 34 to be screwed to a thread 370 outside the recessed seat 37 of the hollow recess, and a recessed area of the limiting seat 37 is provided with the outer lead 25 and the outer lead 25 The center wire 24 penetrates through the positioning hole 371 so that the thermocouple 2 can be surely sandwiched between the top wall surface of the cavity 32 of the super heat-resistant guide 3 to the limit seat 37, and the thermocouple 2 A spring 38 is interposed between the bottom end surface and the hollow recessed portion of the inner wall surface of the limiting seat 37 to absorb the super heat-resistant guide member 3 for a long time. The amount of thermal deformation of the direct fire of the fire can ensure that the head end portion 26 located at the thermocouple 2 can be tightly connected to the inner wall surface of the chamber 32 of the super heat-resistant guide member 3; The base portion 31 of the guiding member 3 is further provided with at least one venting hole 33, and the venting hole 33 is in communication with the chamber 32, and the venting hole 33 is located below the burning rod portion 30 as the super The heat energy inside the heat-resistant guide 3 and the heat energy of the thermocouple 2 can be quickly cooled and cooled; accordingly, the super-high temperature (ie, above 650 ° C) furnace which is already located in the flame combustion zone is directly and continuously burned in the super heat-resistant The cauterization rod portion 30 of the guide member 3 (but not directly burned at the end portion 26 of the thermocouple 2), so that the cauterization rod The ultra-high temperature (ie, above 650 ° C) absorbed by the portion 30 is then thermally conducted to the head end portion 26 of the thermocouple 2 after flowing through the base portion 31 and the top wall surface of the hollow recessed chamber 32, so that At the same time point, the head end portion 26 has a large temperature difference change to generate a micro voltage (or micro current), and the valve plate is opened and closed as a link to a solenoid valve group (not shown). For the purpose of control; the above-mentioned thermocouple 2 and the super heat-resistant guide 3 and the like have been described in detail above, and therefore will not be described herein.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention; therefore, any changes or modifications to the features and spirits described in the scope of the present application should include Within the scope of the patent application of this creation.

Claims (10)

An ultra-high temperature resistant thermocouple structure comprising at least: a thermocouple having a micro-voltage generated by a thermal temperature difference, and a super-heat-resistant guide member having an ultra-high temperature resistance and conducting to the thermocouple; wherein: the super-heat-resistant guide And comprising at least a burning rod portion for flame combustion and a base portion extending downward from the burning rod portion, the base portion being in contact with the thermocouple; and by the above configuration, when the ultra-high temperature fire force is directly burned The cauterization rod portion of the super heat-resistant guide member (that is, the flame does not directly burn at the end of the thermocouple) can directly conduct the super-high temperature (ie, above 650 ° C) generated by the cauterization rod portion after cauterization. Up to the thermocouple, so that at the same instant time point, the thermocouple generates a micro voltage (or micro current), so that the valve plate of the solenoid valve group is effectively activated and controlled; The thermocouple is used in a field with a higher operating temperature and can greatly increase the service life of the thermocouple. The ultra-high temperature resistant thermocouple structure of claim 1, wherein the thermocouple is formed with a head end portion, and the head end portion is capable of maintaining a connection contact with the base portion. The ultra-high temperature resistant thermocouple structure according to claim 1 or 2, wherein the thermocouple is provided with at least one ring groove; and the base end of the super heat-resistant guide member is formed with a hollow recess Forming a chamber so that the chamber can be placed at the thermocouple, and the top inner wall surface of the chamber can be tightly connected to the end of the thermocouple, and the base of the super heat-resistant guide is utilized The wall surface is buckled and fixed at the groove of the ring due to the deformation of the pressure. The ultra-high temperature resistant thermocouple structure according to claim 1 or 2, wherein the base end of the super heat-resistant guide member is formed with a hollow recessed chamber facing inward, and an internal thread is formed on the wall surface of the chamber; Further, a spiral threaded portion is disposed on the outer circumferential side of the thermocouple, so that the internal thread and the counter nut of the super heat-resistant guide member can be screwed into the threaded portion of the thermocouple in sequence, and the super The inner wall surface of the chamber of the heat-resistant guide member is in close contact with the end portion of the thermocouple. The ultra-high temperature resistant thermocouple structure according to claim 4, wherein the base of the super heat-resistant guide member is further provided with at least one venting hole, and the venting hole can communicate with the chamber to It is used as a cooling device for rapid heat dissipation inside the super heat-resistant guide. The ultra-high temperature resistant thermocouple structure according to the first or second aspect of the invention, wherein the base end of the super heat-resistant guide member is formed with a hollow recessed chamber facing inward, and an internal thread is formed on the wall surface of the chamber. So that the internal thread can be screwed to a thread outside the limit seat, so that the thermocouple is sandwiched between the super heat-resistant guide and the limit seat, and the chamber of the super heat-resistant guide is made The inner wall surface can be tightly connected to the end of the thermocouple head; and the limiting seat is provided with a positioning hole for the central wire and the outer wire to penetrate. The ultra-high temperature resistant thermocouple structure according to claim 6, wherein the thermocouple has a spring interposed between the limiting seats to ensure that the head end portion of the thermocouple is protruded from the spring. The repulsive force acts to tightly connect the inner wall surface of the chamber in contact with the super heat-resistant guide. The ultra-high temperature resistant thermocouple structure according to claim 7, wherein the base of the super heat-resistant guide member is further provided with at least one vent hole, and The venting hole can communicate with the chamber to serve as a cooling device for rapid heat dissipation inside the super heat-resistant guide. The ultra-high temperature resistant thermocouple structure according to claim 2, wherein the base end face of the super heat-resistant guide is welded to the heat-resistant metal casing or the head end of the thermocouple. The ultra-high temperature resistant thermocouple structure according to claim 9, wherein the base end of the super heat-resistant guide member is formed with a hollow recessed chamber facing inward, so that the inner wall surface of the chamber can be in close contact with the At the end of the thermocouple.