Blank in-furnace temperature testing device and assembling method thereof

Abstract

The invention relates to the field of temperature detection, and discloses a blank in-furnace temperature testing device and an assembling method thereof. The water tank is arranged in the outer box body and is provided with a containing cavity; the water tank is coated with the heat preservation coating piece; the furnace temperature tracker is arranged in the accommodating cavity; the thermocouple is connected to the furnace temperature tracker; wherein the outer box body comprises an upper shell and a lower shell, the lower shell is used for being embedded into an embedding groove of a blank, the upper shell is provided with a penetrating opening for the thermocouple to penetrate through, the top of the lower shell is provided with a convex lug, and the lower shell is gradually shrunk from top to bottom. According to the invention, the outer box body can be firmly fixed on the blank, and the stability of the temperature measurement process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of temperature detection, and in particular to a device for testing the temperature of a blank in a furnace and an assembling method thereof. Background Art

[0002] In recent years, with the rapid development of the titanium industry, the output of titanium products has increased day by day, and the quality requirements of titanium products have also increased day by day. Especially when it comes to the development of new titanium products, it is more necessary to finely control the heating quality in order to provide high-quality and high-stability raw materials for rolling. Therefore, it is necessary to track and test the heating process of the titanium billet to obtain the heating curves of different parts of the titanium billet during the movement of the titanium billet in the heating furnace. This work can achieve multiple goals at one stroke. First, it can clarify the heating quality of the titanium billet under the current heating system, such as the cross-section temperature difference (temperature difference along the thickness direction of the titanium billet), the same plate temperature difference (temperature difference along the length direction of the titanium billet), etc.; second, it provides a basis for subsequent increase in furnace temperature and shortening of heating time; third, it can be compared with the heating curve of the secondary model of the heating furnace, optimize the existing secondary model, and provide support for the improvement of automatic titanium burning accuracy.

[0003] The online test of the slab heating in the heating furnace is generally carried out using a furnace temperature tracker, commonly known as the "black box" experiment, that is, holes are drilled at different positions of the slab, and the thermocouple heads are buried therein. The thermocouple data transmission end is connected to the furnace temperature tracker, and the temperature measurement data is written into the furnace temperature tracker. The thermocouple and the furnace temperature tracker are put into the furnace with the experimental slab, and after the gradual heating until the uniform heating process, the experimental slab is taken out of the furnace. The whole process of thermocouple test data is recorded, so as to obtain the temperature rise curve of different measuring points of the steel slab.

[0004] In actual operation, there are many details that need to be paid attention to during the black box experiment, such as the production and installation of the thermal insulation box, the opening of the measuring hole, the method of fixing the thermocouple, etc. If the preparation is sufficient, the method is correct, and the operation is proper, the experimental process can obtain real and effective test data. However, if there is a problem with the test method, the experimental process is prone to obtain wrong data information, or even no data information, such as the test data is higher or lower than the actual temperature. Since the black box experiment is a lossy experiment, thermocouples, thermal insulation cotton, etc. are scrapped after one use. Experimental failure will cause economic losses. More importantly, erroneous data will mislead production and require retesting, which is time-consuming and laborious. Therefore, it is necessary to consider all the details of the black box experiment comprehensively, especially the key links of the production and installation of the thermal insulation box and the wrapping of the furnace temperature tracker.

[0005] Due to the difficulty in welding titanium and steel, the method of welding the thermal insulation box to the billet in the black box experiment cannot be directly used. Based on this, it is necessary to study a new method to safely and firmly fix the thermal insulation box to the end of the titanium billet to ensure the smooth progress of the experiment. Summary of the invention

[0006] The main purpose of the present invention is to provide a device for testing the temperature of a blank in a furnace and an assembly method thereof, so as to solve the technical problem of how to firmly fix a heat-insulating box to the blank.

[0007] According to one aspect of the present invention, a device for testing the temperature of a blank in a furnace is provided, comprising: outer box; A water tank, which is arranged in the outer box body and has a containing cavity; A thermal insulation covering member, covering the outside of the water tank; A furnace temperature tracker is arranged in the containing cavity; Thermocouple, connected to the furnace temperature tracker; The outer box body includes an upper shell and a lower shell for embedding in the embedding groove of the blank. The upper shell is provided with a through hole for the thermocouple to pass through, the top of the lower shell is provided with a lug, and the lower shell gradually shrinks from top to bottom.

[0008] According to one embodiment of the present invention, the device further comprises a fastener for fixing the lug to the blank, and the lug is provided with a connecting hole matched with the fastener.

[0009] According to one embodiment of the present invention, the position of the bottom wall of the penetration opening is higher than the position of the top surface of the water tank.

[0010] According to one embodiment of the present invention, the portion of the thermocouple near the temperature measuring end is bent into type.

[0011] According to one embodiment of the present invention, the thermal insulation coating comprises a ring-shaped thermal insulation cotton stacking body sleeved outside the water tank, and multiple layers of thermal insulation cotton staggeredly wrapped outside the thermal insulation cotton stacking body, and the device also comprises a plurality of binding wires for binding the thermal insulation coating.

[0012] According to an embodiment of the present invention, a plurality of fixing members are arranged around the outer box body, and the head section and the tail section of each binding wire are respectively wound around the fixing members located on two opposite sides and then connected together.

[0013] According to one embodiment of the present invention, the device further comprises a blocking member for blocking the water spout of the water tank.

[0014] According to an embodiment of the present invention, the material of the outer box is steel, the material of the blank is titanium or titanium alloy; and / or the height of the lower shell is less than the thickness of the blank.

[0015] According to another aspect of the present invention, a method for assembling the above blank in a furnace temperature testing device is provided, comprising: Multiple tying wires are laid in the outer box in the horizontal and vertical directions; Multiple layers of thermal insulation cotton are laid alternately in the horizontal and vertical directions in the outer box body, and openings corresponding to the through openings on the outer box body are opened on the thermal insulation cotton; Insert the thermocouple into the outer box through the through-hole and the opening and connect it to the furnace temperature tracker; Place the water tank into the outer box and place the furnace temperature tracker inside the water tank; A ring-shaped heat-insulating cotton laminate is manufactured, and the heat-insulating cotton laminate is sleeved outside the water tank; Use multiple layers of insulation to cover the water tank; The thermal insulation cotton is bundled using the laid multiple tying wires.

[0016] According to one embodiment of the present invention, the method further includes: During the assembly process, the water nozzle of the water tank is sealed with a sealing piece, and the sealing piece is removed before the blank is put into the furnace temperature test device; Use thermal insulation cotton to seal the penetration; After inserting the thermocouple into the outer box, bend the part of the thermocouple near the temperature measuring end into Type, and then connected with the furnace temperature tracker; When bundling, the head section and the tail section of each bundling wire are respectively wound around the fixing members arranged on the opposite sides of the outer box body and then connected together.

[0017] In the technical solution of the present invention, a lug is provided on the top of the lower shell, and the supporting effect of the lug ensures that the lower shell is firmly embedded in the matching embedding groove on the blank; at the same time, the lower shell gradually shrinks from top to bottom, and the upper wide and lower narrow manner can effectively prevent the outer box from falling. Therefore, the present invention can firmly fix the outer box on the blank and ensure the stability of the temperature measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A top view of a blank in a furnace temperature testing device according to an embodiment of the present invention is shown; Figure 2 A left view of a blank in a furnace temperature testing device according to an embodiment of the present invention is shown; Figure 3 A front view of a device for testing the temperature of a blank in a furnace according to an embodiment of the present invention is shown; Figure 4A rear view of a device for testing the temperature of a blank in a furnace according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0021] It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the present invention. The subsequent embodiments will not explain this one by one.

[0022] refer to Figures 1 to 4 The present invention proposes a device 100 for testing the temperature of a blank in a furnace, comprising: an outer box body 10; a water tank, which is arranged in the outer box body 10 and has a containing cavity; a heat-insulating covering, which covers the outside of the water tank; a furnace temperature tracker, which is arranged in the containing cavity; a thermocouple, which is connected to the furnace temperature tracker; wherein the outer box body 10 comprises an upper shell 12 and a lower shell 14 for embedding in the embedding groove 2 of the blank 1, the upper shell 12 is provided with a through hole 13 for the thermocouple to pass through, the top of the lower shell 14 is provided with a lug 15, and the lower shell 14 gradually shrinks from top to bottom.

[0023] The outer box 10, the water tank and the heat-insulating covering arranged therebetween together constitute a heat-insulating device, which plays a role in heat-insulating and heat-insulating the furnace temperature tracker placed therein. The device 100 may include a plurality of thermocouples, the connection ends of the plurality of thermocouples are connected to the furnace temperature tracker, and the temperature measuring ends of the plurality of thermocouples are respectively loaded and fixed into a plurality of measuring holes with different depths opened on the blank 1 to detect the temperature at different parts of the blank 1. After the plurality of thermocouples are collected into a bundle, they are penetrated into the outer box 10 through the through opening 13 on the upper shell 12 so as to be connected to the furnace temperature tracker therein. The lower shell 14 is embedded in the embedding groove 2 on the blank 1, and the upper shell 12 is located outside the blank 1. The embedding groove 12 and the lower shell 14 have matching shapes and sizes. The embedding groove 12 can be opened at one end of the blank 1. The upper shell 12 can have a rectangular parallelepiped, a cube or other shapes. The lower shell 14 has a shape that gradually shrinks from top to bottom, such as a prism, a truncated cone, etc., and its longitudinal section can be a trapezoid. The upper shell 12 and the lower shell 14 can be separately formed and then connected together by welding, threaded connection, clamping, etc., or they can be integrally formed. The lug 15 can be a lining plate, and the lug 15 can have the same material as the outer box 10 and be firmly welded thereto. The lug 15 can be provided on multiple sides of the outer box 10.

[0024] In the embodiment of the present invention, the top of the lower shell 14 is provided with a lug 15, and the lower shell 14 of the outer box 10 is embedded in the embedding groove 2 of the size matching with the blank 1 in a manner that the lug 15 bears the force, and the lower shell 14 can be firmly embedded in the embedding groove 2 through the support of the lug 15; at the same time, the lower shell 14 gradually shrinks from top to bottom, and the upper wide and lower narrow manner can effectively prevent the outer box 10 from falling off the blank 1 in the event of an accident. Therefore, the present invention can firmly fix the outer box 10 on the blank to ensure the stability of the temperature measurement process.

[0025] In some embodiments, the device 100 further includes a fastener 16 for fixing the lug 15 to the blank 1, and the outer box body 10 is further firmly fixed to the blank 1 by the fastener 16. The lug 15 is provided with a connection hole matched with the fastener 16, and the fastener 16 passes through the connection hole and is matched in the blank 1. The fastener 16 can be a component such as an anchor nail, a screw, etc. Therefore, the present invention realizes the firm installation of the outer box body 10 on the blank 1 by three measures: designing the lug 15, designing the shape of the lower shell 14 gradually shrinking from top to bottom, and fixing with the fastener 16.

[0026] The device 100 of the present invention is particularly suitable for the case where the material of the blank 1 is titanium or titanium alloy. The outer box 10 is generally made of a low-cost steel plate. Since titanium and steel are difficult to weld, conventional welding methods are not suitable for installing the steel outer box 10 on the titanium blank. The fixing method of the present invention as described above can ensure that the steel outer box 10 is firmly installed on the titanium blank. Of course, the device 100 of the present invention can also be applied to blanks of other materials besides titanium.

[0027] In some embodiments, the height of the lower shell 14 is less than the thickness of the blank 1. In this way, after the outer box 10 is embedded in the blank 1, the lower surface of the outer box 10 is higher than the lower surface of the blank 1, that is, the bottom of the outer box 10 is suspended in the air, which can prevent the bottom of the outer box 10 from contacting the roller during the process of loading and unloading the blank 1, causing bumps and damaging the above-mentioned fixing measures. The lower surface of the outer box 10 can be kept at a predetermined distance (for example, a distance of about 20 mm) from the lower surface of the blank 1.

[0028] In some embodiments, the bottom wall of the through hole 13 is higher than the top surface of the water tank. This can prevent the flame outside the through hole 13 from entering the outer box 10 through the through hole 13, causing local high temperature and damaging the water tank and the furnace temperature tracker. The bending structure is shaped so that the thermocouple can be inserted from the through hole 13 at the upper part and then extend into the water tank at the lower part to connect with the furnace temperature tracker. The length of the bending structure in the horizontal direction and the vertical direction can be determined according to the size of the furnace temperature tracker and the distance between the through hole 13 and the entrance of the water tank into which the furnace temperature tracker is installed.

[0029] In some embodiments, the thermal insulation coating includes a ring-shaped thermal insulation cotton laminated body sleeved outside the water tank, and multiple layers of thermal insulation cotton staggeredly wrapped outside the thermal insulation cotton laminated body, and the device 100 also includes multiple tying wires for tying the thermal insulation coating. The multiple layers of thermal insulation cotton can be staggered in the horizontal and vertical directions in sequence. The length of the horizontal thermal insulation cotton is greater than the cross-sectional perimeter of the water tank, and the length of the longitudinal thermal insulation cotton is greater than the longitudinal cross-sectional perimeter of the water tank. The water tank containing the furnace temperature tracker is tightly wrapped in layers to ensure that the equipment is within a safe temperature range during the furnace, providing a guarantee for the smooth implementation of the black box experiment.

[0030] In some embodiments, a plurality of fixings 17 are provided around the outer box 10, and the head section and tail section of each tying wire are respectively wound around the fixings 17 located on opposite sides (for example, wound 1-2 times) and then connected together. The inventors realize that if the head section and tail section of each tying wire are directly connected and tied, the tying wire will squeeze into the thermal insulation cotton when force is applied, and in severe cases, the thermal insulation cotton will be cut off. The present invention can avoid this situation by first winding the head section and tail section of each tying wire around the fixing 17 and then connecting and tying them together. The tying wire can be, for example, iron wire. The fixing 17 can be an anchor nail (for example, a Y-shaped anchor nail), which is welded to the four sides of the outer box 10 to wind and fix the tying wire.

[0031] In some embodiments, the device 100 also includes a plugging member for sealing the water spout of the water tank. The inventors realize that during the assembly process of the device 100, especially when wrapping the thermal insulation cotton and bundling, an extrusion force may be applied to the water tank, causing the water in the water tank to overflow from the spout. Therefore, in the present invention, during the assembly process of the device 100, after the water tank is filled with water, the water spout of the water tank is sealed with a plugging member. For example, one spout is sealed with raw tape, and the other spout is sealed with a hard wooden stick or iron stick about 150 mm long. When the water tank is placed in the outer box 10, the spout is plugged with a hard wooden stick or iron stick, and during the process of wrapping the thermal insulation cotton on the upper part of the water tank, the wooden stick or iron stick is passed through the thermal insulation cotton, and the bundling is completed. After the blank is aligned on the roller conveyor at the steel loading mouth of the heating furnace and other measures are completed, the wooden stick or iron stick is pulled out.

[0032] According to another aspect of the present invention, a method for assembling the above blank in the furnace temperature testing device 100 is provided, comprising: A plurality of tying wires are laid in the outer box 10 in the transverse and longitudinal directions; Multiple layers of thermal insulation cotton are laid in the outer box body 10 in a staggered manner in the horizontal and vertical directions, and openings corresponding to the through openings 13 on the outer box body 10 are opened on the thermal insulation cotton; Insert the thermocouple into the outer box 10 through the through hole 13 and the opening and connect it to the furnace temperature tracker; Place the water tank into the outer box 10, and place the furnace temperature tracker in the water tank; A ring-shaped heat-insulating cotton laminate is manufactured, and the heat-insulating cotton laminate is sleeved outside the water tank; Use multiple layers of insulation to cover the water tank; The thermal insulation cotton is bundled using the laid multiple tying wires.

[0033] In some embodiments, the method further includes: using a plugging piece to plug the water nozzle of the water tank during the assembly process, and removing the plugging piece before the blank is put into the furnace temperature testing device 100; using thermal insulation cotton to plug the through hole 13; after the thermocouple is inserted into the outer box 10, first bend the part of the thermocouple close to the temperature measuring end into type, and then connected to the furnace temperature tracker; when bundling, the head section and the tail section of each bundling line are respectively wound around the fixing members 17 provided on opposite sides of the outer box body 10 and then connected together.

[0034] The strapping wires can be cut according to the length of the strapping wire ≥ (box circumference + 600mm margin), and the cut strapping wires can be laid on the bottom of the outer box, two horizontally (in the width direction of the outer box) and two vertically (in the length direction of the outer box).

[0035] When laying multiple layers of insulation cotton, you can first lay the longitudinal insulation cotton, then the transverse insulation cotton, then the longitudinal insulation cotton, then the transverse insulation cotton, and repeat this process. Before laying the longitudinal insulation cotton, you can first measure the longitudinal perimeter of the box (i.e. the longitudinal section perimeter), cut the insulation cotton according to the length of the insulation cotton ≥ (the longitudinal perimeter of the box + 200mm), and then lay the cut insulation cotton inside the outer box, compacting the edges. Before laying the transverse insulation cotton, you can first measure the transverse perimeter of the outer box (i.e. the cross-sectional perimeter), cut the insulation cotton according to the length of the insulation cotton ≥ (the transverse perimeter of the box + 200mm), and lay the cut insulation cotton inside the outer box along the transverse direction of the outer box, compacting the edges.

[0036] When making the insulation cotton laminate, you can first measure the inner length and width of the outer box after laying multiple layers of insulation cotton, and cut the insulation cotton into a rectangular shape according to the measured length and width. Then determine the number of cutting blocks of the insulation cotton according to the thickness of the water tank and the thickness of the insulation cotton, and ensure that the thickness of the insulation cotton after compaction is ≥ the thickness of the water tank. After that, place the empty water tank in the middle of the cut insulation cotton (the specific position can be adjusted according to the actual situation), determine the cutting size of the center, and cut the insulation cotton according to the determined cutting size to make it a hollow ring-shaped rectangle.

[0037] In a specific embodiment, a black box experiment is performed on a titanium billet of 8100 mm in length, 1500 mm in width and 230 mm in thickness, and the billet is assembled in a furnace temperature test device according to the following method: (1) Production and installation of the outer box ①Weld the outer box with steel plates The outer box is welded with 15mm thick steel plates. The upper part that extends beyond the titanium billet (upper shell) is 800mm long, 650mm wide and 150mm high. The lower part embedded in the titanium billet (lower shell) is contracted on both sides, and the bottom is 800mm long and 540mm wide.

[0038] 15mm thick steel plate is used as the lining plate, with a width of 60mm, distributed on the three sides of the outer box.

[0039] Anchor nails are welded on the four sides of the outer box body to wrap and fix the iron wire wrapped with thermal insulation cotton.

[0040] A through hole is opened in the middle and upper part of the inner plate of the outer box body, which is used to collect the thermocouple wires arranged at different parts of the slab into bundles and then send them into the outer box body from this through hole and connect them with the furnace temperature tracker. The through hole is 100mm deep and 60mm wide.

[0041] ②Fix the outer box to the end of the titanium billet The end of the titanium billet is slotted, and the slot size matches the lower shell of the outer box body.

[0042] The lower shell of the outer box is embedded in the slotted position at the end of the titanium billet, and the bottom plate of the outer box is kept 20 mm away from the lower surface of the titanium billet.

[0043] Four anchor nails are used to connect the titanium billet and the outer box liner to fix the outer box.

[0044] (2) Wrapping method of furnace temperature tracker ①Measure the circumference of the box and lay the wire Cut the wires according to the length of 2660mm along the length of the box and the length of 2360mm along the width of the box, and lay the cut wires on the bottom of the outer box, two horizontally (in the width direction of the box) and two vertically (in the length direction of the box).

[0045] ② Lay the first layer of insulation cotton - vertical insulation cotton Measure the longitudinal circumference of the box, cut the insulation cotton according to the length of 2260mm, and spread the cut insulation cotton inside the outer box and compact the edges.

[0046] ③Lay the second layer of thermal insulation cotton - horizontal thermal insulation cotton Measure the horizontal circumference of the box, cut the insulation cotton according to the length of 1960mm, and lay the cut cotton inside the outer box along the horizontal direction of the box, and compact the edges.

[0047] ④Lay the third layer of insulation cotton - longitudinal insulation cotton Repeat step ② and lay another layer of insulation cotton vertically.

[0048] ⑤Lay the fourth layer of thermal insulation cotton - horizontal thermal insulation cotton Repeat step ③ and lay another layer of horizontal insulation cotton. At this point, the four layers of insulation cotton at the bottom are laid.

[0049] ⑥ Cut the insulation cotton around the water tank Measure the length and width of the outer box after laying four layers of insulation cotton, cut the insulation cotton into a rectangular shape according to the measured length and width, and determine the number of cutting blocks of the insulation cotton according to the thickness of the water tank and the thickness of the insulation cotton, so that the thickness of the insulation cotton after compaction is ≥ the thickness of the water tank; Place the empty water tank in the middle of the cut insulation cotton (the specific position can be adjusted according to actual conditions) and determine the cutting size of the center; Cut the insulation cotton according to the determined cutting size to make it into a hollow ring-shaped rectangle.

[0050] ⑦Bending thermocouple Cut the insulation cotton at the opening of the outer box into a rectangular notch with a blade, and introduce the thermocouple data transmission end into the box through the notch; bend the thermocouple temperature measurement end into Type, horizontal and vertical distances are determined by the size of the furnace temperature tracker and the distance between the notch of the insulation cotton and the entrance of the water tank where the furnace temperature tracker is installed.

[0051] ⑧Install furnace temperature tracker Insert the thermocouple data transmission end into the furnace temperature tracker socket according to the pre-numbered one; Fill the water tank with water, seal one water spout with raw tape, and seal the other water spout with a hard wooden or iron rod about 150mm long to prevent water from overflowing from the spout when squeezing the upper surface of the water tank; Install the furnace temperature tracker into the water tank and place the water tank flat; Use thermal insulation cotton to seal the penetration opening of the outer box; Lay 2 layers of insulation cotton on the water tank. The size is the same as the insulation cotton cut in step ⑥ (the middle part is not cut). Tie the insulation cotton with the iron wire pre-laid at the bottom to ensure it is strong and firm.

[0052] At this point, the assembly of the blank in the furnace temperature testing device is completed.

[0053] The titanium billet black box experiment was successfully completed using the billet assembled as above in the furnace temperature testing device, and the temperature rise curves of various parts were obtained. The test data curve rose smoothly without significant fluctuations, and the data was in good condition.

[0054] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A device for testing the temperature of a blank in a furnace, characterized in that: include: outer box; A water tank, disposed in the outer box body and having a containing cavity; A heat-insulating covering member, covering the outside of the water tank; A furnace temperature tracker is arranged in the accommodating cavity; a thermocouple connected to the furnace temperature tracker; The outer box body includes an upper shell and a lower shell for embedding in the embedding groove of the blank, the upper shell is provided with a through hole for the thermocouple to pass through, the top of the lower shell is provided with a lug, and the lower shell gradually shrinks from top to bottom.

2. The device according to claim 1, characterized in that The invention also comprises a fastener for fixing the lug to the blank, wherein the lug is provided with a connecting hole matched with the fastener.

3. The device according to claim 1, characterized in that The position of the bottom wall of the through opening is higher than the position of the top surface of the water tank.

4. The device according to claim 3, characterized in that The part of the thermocouple close to the temperature measuring end is bent into type.

5. The device according to claim 1, characterized in that The thermal insulation covering member includes a ring-shaped thermal insulation cotton stacking body sleeved outside the water tank, and multiple layers of thermal insulation cotton staggeredly wrapped outside the thermal insulation cotton stacking body. The device also includes a plurality of binding wires for binding the thermal insulation covering member.

6. The device according to claim 5, characterized in that A plurality of fixing members are arranged around the outer box body, and the head section and the tail section of each of the binding wires are respectively wound around the fixing members located on two opposite sides and then connected together.

7. The device according to claim 1, characterized in that It also includes a blocking piece for blocking the water nozzle of the water tank.

8. The device according to claim 1, characterized in that The outer box is made of steel, and the blank is made of titanium or titanium alloy; and / or the height of the lower shell is less than the thickness of the blank.

9. A method for assembling the blank in furnace temperature testing device as claimed in claim 5, characterized in that: include: Multiple tying wires are laid in the outer box in the horizontal and vertical directions; Multiple layers of thermal insulation cotton are laid alternately in the transverse and longitudinal directions in the outer box body, and openings corresponding to the through openings on the outer box body are provided on the thermal insulation cotton; Inserting a thermocouple into the outer box through the through-hole and the opening and connecting the thermocouple to a furnace temperature tracker; Put a water tank into the outer box, and place the furnace temperature tracker in the water tank; Making a ring-shaped heat-insulating cotton laminate, and sleeve the heat-insulating cotton laminate outside the water tank; Using the laid multi-layer insulation cotton to cover the water tank; The thermal insulation cotton is bundled using the laid multiple bundling wires.

10. The method according to claim 9, characterized in that Also includes: During the assembly process, the water nozzle of the water tank is blocked by a blocking piece, and the blocking piece is removed before the blank is put into the furnace temperature testing device; Using thermal insulation cotton to seal the penetration opening; After the thermocouple is inserted into the outer box, the portion of the thermocouple near the temperature measuring end is first bent into type, and then connected with the furnace temperature tracker; When bundling is performed, the head section and the tail section of each bundling wire are respectively wound around the fixing members arranged on the opposite sides of the outer box body and then connected together.

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